Unit to control section of powered support for this section to perform its functions as longwall face is fixed in mine

FIELD: mining.

SUBSTANCE: method to control a section of a powered support, which is designed for this section to realise its functions as a longwall face is fixed in a mine, and to which a distribution device is connected in front of a group of functional elements of the section. Each functional element of the powered support section has its own address code word assigned, and condition of the inner connection between the control unit and functional elements of the powered support section depends on how it is addressed. The distribution device is located in proximity to functional elements. Functional elements may be valves or sensors.

EFFECT: reduced labour intensiveness, complexity and cabling cost.

12 cl, 6 dwg

 

The technical field to which the invention relates.

The present invention relates to the control section of powered roof supports for the implementation of the said section of its functions when mounting the lava in the mine workings.

The level of technology

Such control mount lava is known, for example, from the publication DE 10393865.6 A1 (TBT 2234).

At such control mount lava separate sections of powered roof supports, which is also called shield lining, are driven device centralized management, or a separate control units installed on each of the support units (control units sections of powered roof supports)or manual remote control via radio data transmission. For this purpose, each control unit section of powered roof supports has a microprocessor with a memory device for storing assigned to this control unit code signal (code word section of powered roof supports). Data transfer from the external control devices, such as, first of all, the control units of other sections of powered roof supports lava, and a Central control device, the functional elements of the control unit section of powered roof supports for internal connection tools last permitted or only in the second case, if the power management section of powered roof supports received the team assigned to this block of code word corresponding section.

Data transfer within the section of powered roof supports includes an electrical connection between the control unit section of powered roof supports and functional elements (Executive electromagnets and sensors) of the relevant section of powered roof supports, in particular: firstly, the issue of power control commands to the drives section of powered roof supports, such as the Executive of the electromagnets of the respective hydraulic valves to actuate the actuators, or the Executive, and, secondly, the survey sensors, request for information and the transmission of measurement signals from sensors attached to each section of powered roof supports, for example for measuring the pressure in a power actuator, the fall of the reservoir or the provisions design elements section of powered roof supports. Under each control unit of one section of powered roof supports can also be used to control two or more adjacent sections for issuing commands or survey of sensors for sampling the measurement signal. In principle, all signals, i.e. the signals involved in the issuing of commands (command signals), the measurement request signals (signals of the survey), as well as measuring the signals (in the application they are generally called control signals), served on the control units of all sections of powered roof supports in total for all blocks line (electric bus). However, these control units are programmed so that the control signals reacts before their implementation, only the control unit, which is assigned to the code word sent from the control signal. All other modules of sections of powered roof supports transmit a control signal with a code word further.

Disclosure of inventions

The present invention is aimed at solving problems when transferring data from the control unit section of powered roof supports within each section of powered roof supports. To date, the unit control section of powered roof supports data had to be equipped with connecting means, i.e., electrical conductors and multiconductor cables, bred to numerous functional elements that are partially combined in groups, as, for example, the Executive electromagnets interlocked hydraulic valves, and the other sections are identical or at least homogeneous. The laying of such electrical conductors and cables within sections of powered roof supports not only difficult, complex and error-prone, but also fraught with the danger of yaporigami in operation.

The basis of the invention was based on the task execution control unit section of powered roof supports so that significantly reduce the complexity, the complexity and cost of cabling, limiting the amount of connective devices, only absolutely necessary cables.

The solution to this problem is set out in paragraph 1 of the claims.

This solution provides the advantage that within the control unit of each section electric powered roof supports data transfer for the function of fastening stope, i.e. electrical data transmission to poll the sensors in order to obtain measurement signals, the electrical data transmission by measuring signals, and the electrical data transmission for transmitting control commands to the Executive section of powered roof supports, internal connection means can be implemented within sections of powered roof supports with low costs of cabling. Therefore, the control unit and cable connections section of powered roof supports can be largely pre-mounted, allowing substantially prevent errors in communication lines due to improper wiring or subsequent damage to communication lines.

the compliance of the proposed solution to each of the functional elements section of powered roof supports assigned valid only for this functional element code signal (address code word). This allows you to implement a function call (activation) of a particular functional element, which is still carried out centrally in the control unit section of powered roof supports, decentralized on the spot. This is a distribution device included in the internal connecting means section of powered roof supports between the control sections of powered roof supports, and functional elements and located as close as possible to him in space. This switchgear can be connected to the control unit section of powered roof supports - as in the embodiment of the invention according to paragraph 2 of the formula - only one cable with a small number lived. It contains a microprocessor with a memory and switching devices with separate switching elements, through which establishes and interrupts the connection with the callee and is subject to the activation of a functional element carried by the inner connecting means. If now the control unit section of powered roof supports at the specified cable to send to the microprocessor switchgear so-called calling code word for a particular functional element section of powered roof supports, is calling the word Boo is should be compared in the microprocessor embedded in the storage device address code words. The coincidence calling code word and a stored address code word switching device is a microprocessor in action on the establishment of a connection for transmitting signals between the control unit section of powered roof supports and the functional element, the address code word which is identical to the calling code word.

In the embodiment of the invention according to paragraph 3 of the formula connecting means for transferring data between the distribution device and the functional elements are formed in each case one cable leading to the corresponding functional element. This requires only one distribution device with a microprocessor and a switching device. Through switching elements of the switching device can be connected to any of the connected functional elements depending on what calling code word was before it's sent to the control unit section of powered roof supports in the switchgear. Electric lines (conductors) can be placed mainly within the switchgear, which thus provides protection against incorrect wiring and damage to them.

This solution is suitable, the company shall and, if the functional elements are Executive solenoids for hydraulic valves section of powered roof supports, and data transfer is used to transfer control commands to these Executive electromagnets according to a preferred variant embodiment of the invention according to paragraph 5, of the formula.

In the embodiment of the invention according to paragraph 4, of the formula switchgear spatial is located in each of the functional elements, or on it, or near it. This option allows you to do that relates to connecting means only one cable for data transfer between the control unit section of powered roof supports and the first of functional elements. Between the functional elements can be connected to a common electrical bus capable of transmitting a control signal to the functional elements, but in this case, each functional element or it is a microprocessor with a switching device, which transmits the control signal sent to the called functional element and activates this functional element in accordance with the control signal.

This variant of the invention, or another option, discussed below, is suitable, in particular, if the functional elements represent the keys a sensor hydraulic valves section of powered roof supports, and data transmission is used to transmit measurement signals from the sensors to the control unit section of powered roof supports and the external device control, as it is provided by the preferred embodiment of the invention according to paragraph 8 of the formula.

When the functional elements are Executive solenoids for hydraulic valves section of powered roof supports, and data transfer is used to transfer control commands to these Executive electromagnets (as provided by paragraphs 3 and 5 of the claims), in another embodiment of the invention, described in paragraph 6 of the formula, hydraulic valves assembled in one or more valve blocks. This has the advantage that the Executive electromagnets are also close to each other, preferably next to each other, and the distribution unit can be installed near the valve block. To connect with the control unit section of powered roof supports sufficient control cable at least two conductors for the transmission of control commands.

Switchgear and in this case contains a microprocessor with a memory device for storing address codes, as well as switching device, by which, accordingly, the military received control command, at the Executive electromagnet address code which corresponds to the received calling code, internal cable connections electrical energy required to move the locking member of the respective valve. To do this, switchgear and switching devices connected to a single electric wire with a current source, for example a voltage of 12 volts.

Due to the design of the valve blocks can also be grouped Executive magnets so that their electrical leads are preferably located in the same plane or in a straight line. It also allows you to perform a distribution device in the form of a flat body, or chassis, electrical leads which are made in the form of a contact plug or movable contacts which correspond to mating with the contacts of the plug connector or the movable contacts of the Executive electromagnets on the location in space (geometrically) and, of course, electrically. Thus, the option of carrying out the invention according to paragraph 7, of the formula eliminates the need for control cables between the distribution device and the functional elements with all their inherent disadvantages. Thus, the connection p is Opredelitel device with a separate actuating electromagnets and power supplies to last is:

a) short cables as opposed to the long cables that first it was necessary to lay between each individual Executive electromagnet and the control unit section of powered roof supports;

b) directly through the contact plug, the use of which may to a certain extent, and if all Executive electromagnets of one block are located in the same flat field, for example in the field, having the form of a strap, and in the same plane.

However, there is the disadvantage that, for example, twelve plug contacts are never exactly on-axis response of contacts. Therefore, a separate response to the contact plug should have a certain mobility parallel to the plane in which are located the plug contacts, mounted on the switchgear. Profitable mobile (battery) contact in which the contact elements are located in one plane (the plane of contact), and the response portion of the connector is congruent located reciprocal contacts, mating with these contact elements by slipped on easily parallel to the plane of contact or landing perpendicular to the plane of contact.

If the functional elements are hydraulic sensors to apanov section of powered roof supports, and data transmission is used to transmit measurement signals from the sensors to the control unit section of powered roof supports and the external device control (paragraphs 4 and 8 of the formula), between the sensors are connected in series measuring cable (electric bus), and with a control unit section of powered roof supports, they are connected by a single signal cable. In this case, each sensor has a microprocessor that is always ready to provide in response to the request, the measuring signal and which contains a switching device for sending the generated measurement signal. If the microprocessor first sensor directly connected to the control unit section of powered roof supports, by comparing determines that sent by the control unit section of powered roof supports calling code word corresponds to the address code word of the sensor stored in the storage device of the sensor signal cable through the switching device of this sensor is connected with the measuring line, resulting measuring signal is transmitted to the control unit section of powered roof supports. Tire on the site, leading to the next sensor is interrupted.

If the calling code word sent by the control unit is of a section of powered roof supports and received by the first sensor, directly associated with the control unit section of powered roof supports, does not match address code word of this sensor, the switching device of this sensor closes an electrical bus at the site, leading to the next sensor or switching device remains in a closed condition. Then, in the next sensor is the procedure of inquiry and comparison, the result of which is the possible connection of the electrical bus with the measuring line of the sensor, resulting measuring signal of the sensor is transmitted to the control unit section of powered roof supports, and electrical bus at the site, leading to the next sensor is interrupted.

This process can also be carried out as follows. Switching devices of all the sensors are located on a common electrical bus and in the unpowered state support the connection between the sensors are permanently closed. Thus, the calling code word sent by the control unit section of powered roof supports, enters into all the sensors, or contained microprocessors. The microprocessor of the sensor, the address code word which is stored in the storage device of this sensor corresponds sent to the calling code word, actuates switching from trojstvo and connects the measuring line of the sensor with the data cable, resulting measuring signal is transmitted to the control unit section of powered roof supports. Tire on the site, leading to the next sensor is interrupted.

Measuring a signal from the sensor is constantly ready to issue. For this purpose, the sensor can be equipped with a storage device for storing the measured values, from which you are transferring the call code by triggering switching device of the memory is called the measured value, i.e. the measurement result (paragraph 9 of the formula). However, the implementation of the measurement sensor and the issuance of the measuring signal can also be carried out continuously, with the current measured value can be read from the sensor when the call transfer code by triggering switching device (item 10 of the formula).

Device control, including control units sections of powered roof supports, interacting with a certain number of functional elements and communicate with one of these functional elements, depending on the match address code word to call a code word, have the advantage that the functional elements may be of any type, and the control unit does not need to be adjusted to the functional element. This, however, relates the disadvantage that there is the capability, the efficiency of the use of functional elements, working unreliable.

Another object of the invention applies as described above controls sections of powered roof supports, and other control devices of this kind. In the case of such control devices is necessary to ensure that only the functional elements of the proper type, which, respectively, provide reliable operation. This is especially important for the safety of the underground operating mines in mining.

The solution to this problem is provided by clause 11 of the claims.

In this case coupling means for transmitting signals between the control unit and the functional element with the microprocessor, the address code word which is identical to the send control unit code signal (calling the code word), are activated only if the control unit in addition to calling the code word and with him sent a code signal characterizing the type of functional element (code word type of functional element)stored in the storage device, the microprocessor of each functional element according to its type.

In the embodiment of the invention according to paragraph 12 of the formula is provided by the possibility of combining the calling code word, the address code word and the code word is IPA functional element to each other.

Brief description of drawings

Below is a description of an example embodiment of the invention, illustrated in the drawings, showing:

figure 1 is a view in section of lava with a shield,

figure 2 - schematic top view of the electric machine and groups of shields,

figure 3 - schematic representation of the control unit section of powered roof supports with sensors and electromagnets,

figure 4 is an enlarged fragment of figure 3, illustrating the actuating electromagnets,

figure 5 is an enlarged fragment of figure 3, illustrating the control sensors

figure 6 is an enlarged image of connection with a movable contact for connection of the switchgear with the Executive electromagnets.

The implementation of the invention

Figure 1 shows one of the sections 1-18 of powered roof supports, which in the industry in General and in this application in particular also called shields or shield sections lining. Figure 2 shows many of the sections 1-18 lining. Sections of powered roof supports are located along the reservoir 20. Development of the reservoir 20 is the cutting tool 23, 24 extraction machine 21 in the direction 22 of penetration. In this example of the invention, the extraction machine made in the form of electric machine (cleaning machine) 21.

robova machine 21 can move in the direction 19 of cutting through not shown in the drawing, the cable body move. It has two drum Executive body 23, 24, which are mounted at different heights and cut into the coal face, beating coal. The broken coal leans electric machine in the AFC. The pipeline consists of troughs 25 (panline), in which treatment along the coal face moving scrapers. Electric machine 21 is mounted for movement along the line of treatment of the coal face. The chute 25 is divided into separate sections (pans), which, though connected to each other, can move relative to each other in the direction 22 of penetration. Each of the sections of the chute is connected with its corresponding section 1-18 supports power cylinder 29 (they are used), which is an Executive body or actuator. Each of the shields is to support the stope. This purpose is served other power cylinders 30, arching support plate (base) 26 and plate 27 overlap. Floor slab on its front, facing the reservoir end, has a so-called supporting the visor 48. This visor is a shield, which can deflect in the direction of the produced coal face. Before driving electric machine 21 supporting the visor 48 should be raised. For this purpose, there is another power cylinder, not shown. These functional elements is s separate sections of powered roof supports are presented here only as an example. There are other functional elements; however, it may be, on the one hand, additional power drives, first of all the cylinders (hydraulic Jack), and on the other hand, are not shown in figure 1 the sensor 46 (Fig 3, 5), with which, for example, by measurement and control of pressure in the hydraulic power drives or motion of any of the provisions of the above-described movable and adjustable parts section of powered roof supports.

These power cylinders are driven by the main valve 44 and the auxiliary valve 45 predpravleniya (pre-amplification regulatory impact). Each of the main/auxiliary valve fixed housing containing the device control valve and actuating electromagnet 47 to move the spool auxiliary or main control valve.

Figure 2 electric machine shown in the process of movement to the right. Therefore, supporting the visor section 17 of the lining must be removed, i.e. folded back. On the other hand section (link) chute 25, attached to section 9 of powered roof supports, caught looking in the direction 19 of the cutting, electric machine 21, moves in the direction of the plane of the coal face. Similarly, the following sections 8, 7, 6, 5 and 4 mechanized roof supports are in a position the AI advancing towards Oistamo slaughter, i.e. to the plane srubami coal wall. These sections of powered roof supports supporting the canopy rises again. Sections 3, 2, 1 mechanized roof supports are aligned against the bottom till the end and will remain in this position until the electric machine again will not fit right.

The control of these movements is partially automatically set the program depending on the motion and the instantaneous position of the electric machine and partly by hand. To this end, each section 1-18 of powered roof supports attached to your unit 34 controls. Each block 34, the control section mechanized lining associated with the functional elements of its sections, in particular with sensors 46 and actuating electromagnets 47 auxiliary valve 45 predpravleniya and the main valve 44 to control the power actuator. More on this is discussed below with reference to Fig 3, 4 and 5.

For data entry, including entering commands or data request, may use any one of the control units support units. However, for data entry, a group of several control units sections could be attached to the device 33 control mechanisms stope, or the totality of the blocks of the control sections can be assigned to manual 37 remote control or Central control device support (main 50 and/or vspomogate is linoma 51 Central control devices), connected to the control units of sections. This option is shown in figure 2.

The Central control device support consists of the main 50 51 Central and auxiliary control devices. The main 50 and/or 51 auxiliary Central control device program automatic control of mechanical support and automatic input control commands support (unloading hydraulic rack, the movement section, raspor section) depending on the position of the mining machine. For this, the main device 50 centralized control and/or auxiliary device 51 centralized control can be performed according to a given program sample measurements from individual sensors (sensor signals). Issuing commands and sample signals of the sensors (sensors) can also be accessed from the host device 50 centralized management and/or assistive devices 51 centralized control or manual 37 remote control manually.

All blocks 34 management support units are interconnected by a cable 58 (electric bus). Each of these control units support units receives from all other control units of sections entered or issued control commands lining, state data and other data and transmits it is also all the other control units of the sections.

However, due to pre-coding (using code words section of powered roof supports) to perform the desired function, for example, query the measurement result or function of the mounting face in the sense of unloading hydraulic rack, the movement section, the thrust of the section is activated, the control unit only one of the sections 1-18 lining, or the control units of a certain group of shields. Then activated the unit control section converts the received command, for example, query results or the command actuation section of powered roof supports, the team applied for related to this section of the functional elements, sensors, control valves or main valves.

The management control unit for a specific partition mechanized (shield) lining, automated calling functions and their testing process is described, for example, in the application DE 19546427.3 A1.

Manual 37 remote control is connected by a radio channel with the radio 38 provided in each of the control units of the sections of powered roof supports. The block management section of powered roof supports located closest to a handheld remote control that will receive the strongest signals. Accordingly, the control unit section of powered roof supports transmits polucen the second signal electric bus 58, causing the control unit section of powered roof supports, to which the manual control panel addressed using the entered code words of the section, can react accordingly. For the transmission of radio signals is, for example, the antenna 39 manual remote control.

In the control units of the sections of powered roof supports or main Central unit 50 of the control or auxiliary Central unit 51 of the control can be based program that allows you to conduct a separate survey or series of surveys of individual sensors regarding functions, working conditions and processes perform the functions of the respective shield. Then the received data being simultaneously transmitted through cables 58 in the adjacent blocks, control sections of powered roof supports, and from one of the control units of the sections of powered roof supports over the air on the manual control unit and/or to the main Central control system 50 or auxiliary Central unit 51 controls and displays on the display. Thus, the operator can verify that a certain shield still working or already require maintenance, replacement of functional elements or controls.

The connection principle and to the mutation of an individual unit 34 of the control section of powered roof supports with functional elements of his section of powered roof supports, in particular with the Executive electromagnets 47 for entering commands and sensors 46 for polling for the issuance of measured values, is illustrated generally in figure 3 and in detail in figure 4 and 5, respectively. These switching means are in each section of powered roof supports.

On these drawings shows one set of blocks 34 control sections of powered roof supports. The control unit section of powered roof supports connected to the electrical bus 58 with other control units of the sections of powered roof supports and the main Central control system 50 and the auxiliary Central unit 51 controls. The control unit section of powered roof supports has an input electric bus 58 to the input element, in particular the processor 60 with switch 62, which is normally closed, resulting in the incoming signals are sent from one control unit section of powered roof supports to the next. Disabling the electrical bus and the subsequent activation of the block control section mechanized lining occurs if the bus signal with a code word section of powered roof supports, the corresponding codeword sections of powered roof supports, assigned to the control unit section of powered roof supports and stored in the storage device Belka management section of powered roof supports. In this case, the received signal is processed by the control unit section of powered roof supports, for example, to execute control commands in the sense of functions mounting face or request or transmission of the measurement results (measured values).

According to the present invention as shown in Fig.3-5 - for the exchange of data within each block of the control section of powered roof supports provided by the distribution unit 41 that is designed to distribute data exchange functional elements, sensors and force actuators or their Executive electromagnets, which are reacted or should react to the treatment control unit. In this case, the distribution device may be located either in each of these functional elements, or in front of a group of functional elements. In any case, within one section of powered roof supports, there is only one cable 42 for connection between the unit 34 of the control section of powered roof supports and one of the distribution devices 41 with a group of functional elements. Switchgear or distribution device is located(s) close in space to the corresponding functional elements. Therefore, the invention eliminates the need for multiple, complex, and prone is faulty cabling between the control sections of powered roof supports and functional elements, despite the fact that the communication involved many functional elements.

For valves 44 and control valve 45 predpravleniya actuators and actuating solenoids of these valves in the embodiment of the invention shown in figure 3, 4, there is one distribution device 41 located in front of the group Executive electromagnets and the total for all Executive electromagnets of this group. This variant embodiment of the invention has the advantage that the Executive electromagnets is not required to provide a microprocessor for controlling the electromagnets or the functionality of these microprocessors can be minimized.

In addition, as presented in figure 3, 4 embodiment of the invention is completely excluded external cabling between the switchgear and the associated actuating electromagnets.

For this purpose, the valves 44 and control valve 45 predpravleniya and Executive electromagnets 47 actuators are located in one plane or arranged in a straight line, but in any case arranged in such a way that they have the electrical plug contacts 53 (contact plug) for connection to the distribution device, which are parallel to each other is se and are preferably in the same plane or on the same line.

The distribution unit 41 in the form of flat straight bar. On the side facing to the Executive electromagnets group located in the steel block valves, it has plug contacts 52, geometrically corresponding second contacts 53 of the Executive electromagnets. Depending on circumstances may also be provided a guide that provides directional movement of the switchgear in electrical and mechanical connection with the Executive solenoids and plug contacts. Plug contacts Executive electromagnets and/or plug-in contacts of the switchgear preferably have small lateral mobility, eliminating errors in the geometric location and line contacts. As such contacts plug connector is suitable, in particular, the so-called battery contacts, which are on one side of the spring and oriented in the direction of the main movement of the contact tongue, and on the other hand fixed contact details, pin or similar items. Thus the lateral mobility in one direction is determined by the width of the contact reeds, and in the perpendicular direction - elasticity of the contact is on the tongue (for example, as shown in Fig.6).

Plug contacts 52 distribution device 41 are connected by the corresponding internal cable connection 54 to the distribution device 41 of the controller 40 of the valve. The controller 40 of the valve is connected by a cable 42 data transfer unit 34 of the control section of powered roof supports, and through it with the other control units of the sections of powered roof supports, the main Central control system 50 and the auxiliary Central unit 51 of the control.

The controller 40 of the valve has a microprocessor 59 with the storage device 56. In the storage device is stored on one individual code word (address code word) to each of the connected Executive electromagnets. On the other hand, in the storage device 57 of the control unit section of powered roof supports for each function mounting face and each incoming team laid an individual calling code corresponding to the type driven functional element. Depending on received by the control unit of the signal and its contents by activating the control unit section of powered roof supports cable 42 data is sent also calling code in a functional element, which must perform the desired function.

The high performance embedded the quarrels 59 controls the switching elements 63, connecting power wires, for example, line 46 the supply voltage is 12 volts with functional elements, in particular the Executive electromagnets, and activates one of the switching elements 63, ensuring the connection with the actuating electromagnet, an address code which corresponds to the received calling code. Then this Executive electromagnet internal cable connections 54 voltage required for its operation on the permutation.

For sensors 46 in the embodiment of the invention shown in figure 3, 5, provided the distribution unit 41 in each of the sensors.

This option has the advantage that the sensors are attached to the microprocessor, making the autarkic sensor, i.e. independent from the used in each case, the control unit section of powered roof supports.

Further, in the embodiment of the invention shown in figure 3, 5, wiring between the control unit section of powered roof supports and sensors is reduced to a single cable.

Each sensor 46 has one distribution device 41. It has a microprocessor 59 with the storage device 56. In the storage device 56 is stored individually for sensor code word (address code word). With the other the hand, as explained above, in the storage device 57 of the control unit section of powered roof supports for each incoming command is stored outside the code for individual driven functional element, in particular of the sensor. Depending on the received signal and its contents by activating the control unit section of powered roof supports cable 42 data also issued the call code of the sensor 46, the reading which you want to request, and the calling code is first transmitted to the first sensor 46 and through it on the internal cable connection 54, consisting of only one cable is forwarded to all other enabled one after the other sensors. The switch 63 of each distribution device 41 is normally closed, resulting in the sent code passes freely to other sensors. Disabling electric bus occurs if the address code of the sensor corresponds to the received calling code.

For this purpose, the microprocessor 59 causes the switching element 63 in action in connection with caused by sensor 46, an address code which corresponds to the received calling code. Then the measurement result caused by the sensor can be transmitted to the control unit section of powered roof supports, main or su is magadelene Central control device or a handheld remote control.

In this case, the measurement result may be the current measured value (reading), remove the sensor. Or the measurement results can be obtained previously and stored in the storage device 55 of the sensor.

If the switching elements 63 sensors are normally closed, first compares the address code of the first sensor 46 with the received calling code. And just in case, if the address code does not match the calling code, the received command is forwarded switching element 63 on the inner cable connection 54 to the next sensor and its distribution device, then the next and so on until the address code of one of the sensors is not matched with the calling code. Only switching element 63 will connect line 42 data with the corresponding sensor 46, and the inner cable connection 54 with the other sensors will remain interrupted.

The above-mentioned advantage that due to the coupling of sensors with respective microprocessors sensors become self-sufficient, i.e. independent from the used in each case, the control unit section of powered roof supports, may also be associated with disadvantages in terms of safety and reliability. In this regard, it was noted earlier that there is sadakaheartyou use only the functional elements of the proper type, ensuring the safety of the operation, which is especially important for the safety of the underground operating mines in mining.

This variant of the invention, also shown in figure 5.

In this case coupling means 42 for transmitting signals between the control unit section of powered roof supports and those of the sensor 46, which is caused by the sending of the calling code words, are activated only if the control unit section of powered roof supports in addition to calling the code word and with him sent a code signal characterizing the type of functional element (code word type of functional element). This code word type of functional element stored in the first storage device 61 of the control unit section of powered roof supports and is added to each input command with the address code word, respectively, caused by the sensor. This code word type of functional element is also stored in the storage device 57 of the microprocessor 59 each sensor according to type. The microprocessor 59, available in each of the sensors, activates the corresponding switching element 63 for connection with the corresponding sensor 46 only when the correspondence between the address code of the sensor and received call Kodo is, and between codes sensor type. Type code is not subject to manipulation, resulting guaranteed by the fact that the sensors installed in sections of powered roof supports have during her work required by the operating permit and quality.

Transmission and processing of two code words, namely the address code and the code of the type of functional element is not strictly necessary. In another embodiment, the invention may be provided by the encoding (encryption) codes through code sensor type: on the one hand, by type code sensor can be encoded (encrypted) calling code in the processor 60 of the control unit section of powered roof supports, and on the other hand, by type code sensor can be encoded (encrypted) address code in the microprocessor 59 of the sensor, and in both cases use the same encoding algorithm, resulting in the calling code is sent only encoded by the code sensor type shape and is compared with the address code, again coded by type code sensor form.

1. The control unit section of powered roof supports, intended for realization of the specified section of its functions when mounting the lava in the mine workings, characterized by the fact that he
for electrical data associated with the ne side, with external control units sections of powered roof supports, primarily with the control units of other sections of the lava, as well as with the Central control device, and on the other hand, the internal connecting means with functional elements section of powered roof supports, and
contains a microprocessor with a memory device for storing the assigned code signal (code word section), and the data transfer control unit section of powered roof supports functional elements of his section on internal connecting means is permitted only in the case of actuation of the control unit section of powered roof supports through its assigned code words of the section,
characterized in that
each of the functional elements section of powered roof supports assigned valid only for this functional element code signal (address code word),
internal connecting means is enabled distribution device connected between the control unit section of powered roof supports, and functional elements and located spatially close to them,
the distribution device includes a microprocessor with a memory device and switching device for switching an inner join is entrusted funds
in a storage device of the distribution device stored address code word of functional elements, subordinate to the control unit shield,
switching devices are driven by the microprocessor upon receiving from the control unit section of powered roof supports beep code (calling code word) thus, to activate a connecting means for transmitting signals between the control unit section of powered roof supports and the functional element, the address code word which is identical to the calling code word.

2. The control unit according to claim 1, characterized in that the connecting means to transfer data between the control unit section of powered roof supports and switchgear includes only one cable.

3. The control unit according to claim 1, characterized in that the connecting means to transfer data between the distribution device and the functional elements include one line leading from the distribution device to the corresponding functional element.

4. The control unit according to claim 1, wherein the distribution device is located in each of the functional elements, or on it, or near it, and connecting means for transmitting Yes the data between the control unit section of powered roof supports and the first of functional elements includes only one cable, and between the functional elements are connected via a shared bus and controlled switching devices located in each of the functional elements.

5. The control unit according to claim 2 and 3, characterized in that the functional elements are Executive solenoids for hydraulic valves section of powered roof supports, and data transfer is used to transfer control commands to these Executive electromagnets.

6. The control unit according to claim 5, characterized in that:
hydraulic valves are assembled in the valve block,
switchgear is installed near the valve block,
the distribution unit is connected to the control unit section of powered roof supports managing cable (signal line 42) at least two conductors for the transmission of control commands, and a power wire (46),
the distribution device includes a microprocessor with a memory device, and they managed switching device with the switching elements (63),
each of the Executive electromagnets associated with switchgear one power wire (46),
switching elements configured to control switching of the power wire (46) with internal cable connection (54) each of the Executive elect is Magnito,
in the storage device stored address codes connected Executive electromagnets,
moreover, the operation switching device is introduced into it along with the ringing code word by the management team so that one of the switching elements (63) provided power via an internal cable connection (54) on the Executive electromagnet address code which corresponds to the received calling code.

7. The control unit according to claim 6, characterized in that:
hydraulic valves are combined in a valve block,
electrical inputs of hydraulic valves made in the form of contacts plug connector, located next to each other in a predetermined geometric pattern,
switchgear is made in the shape of a bar and has contacts, geometrically corresponding to the contacts of the Executive electromagnets, and
the distribution unit is mechanically and electrically connected with the Executive electromagnets through contacts of plug connector without intermediate enable external cable connections, and internal cable connections are located exclusively inside the switchgear.

8. The control unit according to claim 4, characterized in that the functional elements of t which make the sensors.

9. The control unit according to claim 4, characterized in that the sensors have a storage device (55) with the possibility of saving measurement signals and recall measurements by connecting the storage device to the distribution device.

10. The control unit according to claim 5, characterized in that you can read from the sensor measurement signals in the form in which they are issued, by connecting the sensor with its switchgear.

11. The control unit according to claim 1, characterized in that the connecting means for transmitting signals between the control unit section of powered roof supports and the functional element are activated only if the control unit section of powered roof supports in addition to calling the code word and with him sent a code signal characterizing the type of functional element (code word type of functional element)stored in the storage device, the microprocessor of each functional element according to its type.

12. The control unit according to claim 11, characterized in that the code word type of functional element is to encode the calling code word and the address code word according to the rule in such a way as to ensure the possibility of running in the high performance embedded the quarrels comparing the calling code word and the address code word, in encoded by means of code words of the type of functional element form.



 

Same patents:

FIELD: mining.

SUBSTANCE: method for automatic development of specified bottom-hole space is realised during operation of treatment complex consisting of face conveyor, at least one cleanout machine and hydraulic shield powered support. In underground extraction of hard coil slope of support units in relation to horizontal is determined by means of slope sensors. Height of section of shield powered support being respective perpendicular to formation dip is calculated in computing unit. Besides height of cleanout machine penetration as bottom-hole space is recorded, and height of cleanout machine penetration is synchronised with height of section of shield powered support. At that slope sensors are arranged on at least three of four primary support units, in particular: on supporting bearer, rock-dammed shield, bearing hinged arms and rock-dammed part of supporting coverage.

EFFECT: providing automatic positioning of work equipment of complex for control and development of specified bottom-hole space.

14 cl, 16 dwg

FIELD: mining.

SUBSTANCE: in control method of drum actuating element equipped at least with one lever of drum actuating element each electric hydraulic section of the support is equipped with its own electric hydraulic control instrument. Control commands are entered for correction of lever position of drum actuating element from control instrument of support section. And they are supplied from there to control system of drum actuating element.

EFFECT: improving control efficiency of the cut by means of drum actuating element.

8 cl

FIELD: mining.

SUBSTANCE: extraction device of coal in longwall face of underground mine working consists of the following: many sections of powered support, which are installed near each other throughout the length of longwall face between gates; plough machine; chute and conveyor located in it with possibility of movement, which are located throughout the length of longwall face between extraction machine and support sections; several deflecting devices and control device. Plough machine is provided with possibility of being moved along the line of the mining face and equipped with rock detection sensor which is provided with possibility of transmitting radio data of the detected rock to the control device of the support by means of the transmitter installed on the plough and the radio receivers installed along the longwall face. Group of adjacent support sections and sections of the chute corresponds to each deflecting device. Deflecting device is connected to control unit of one of the support sections of the appropriate group, and depending on the data of the detected rock, it provides the possibility of lifting the chute sections of the appropriate group, which is accompanied with lowering of the tools of the plough machine, and lowering of the chute sections, which is accompanied with lifting of plough machine tools. Control device includes the following: bottomhole control unit located at the end of longwall face for control of functions of support sections in relation to unloading, transportation and bracing of the support; control units of sections, each of which is put into spatial and functional compliance with the appropriate support section for performing and further transmitting the commands from bottomhole control unit; and the bus connecting mainly in series the bottomhole control unit to control units of support sections. At that, rock sensor when moving beside each support section is provided with possibility of generating the measurement signal characterising the detected rock only for several, mainly not more than two measurement points. Measurement signals received at neighbouring measurement points are subject to analysis with a view to predominance of rock or coal. Depending on analysis results, there generated is deviation signal supplied to the common deflecting device common for all measurement points, and namely to the deflection of the chute sections, which causes the lifting of plough machine tools if analysis results show the predominance of rock at the analysed measurement points, and to deflection of the chute sections, which causes the lowering of the plough machine tools if the analysis results show coal predominance at the analysed measurement points.

EFFECT: possible quick correction of the plough machine position during the coal extraction, which causes the lifting and lowering of the plough.

9 cl, 2 dwg

FIELD: mining.

SUBSTANCE: equipment consists of electric-hydraulic driven sections of lining with corresponding facility for lining control. Additionally, there is foreseen at least one doubled block of power source, which provides current for at least two means of lining control of different sections of lining independently from each other. A double-sided element of communication is installed between the power source block and at least two means of lining control; this element performs galvanic separation between the power source block and means of lining control and/or groups of means of lining control. Also the element of communication forms a galvanic separated data transmitting channel which facilitates communicating between two means of lining control and/or groups of means of lining control. Notably, double-sided element of communication is in-built into the power source block or is flange mounted directly on the case of power source block.

EFFECT: simplification of design of face equipment.

4 cl, 2 dwg

FIELD: mining.

SUBSTANCE: invention relates to control system over underground face support with transport. The control system for underground walking face support consists of transporter, winning machine, plurality of panels each equipped with a block of functional control with a corresponding panel, of a facility connecting control blocks between themselves, of a central station located outside long wall face and communicating means for transmitting data between control blocks in the long wall face and the central station outside long wall face. The communicating means include at least one radio transmitting device from the side of the long wall face and one radio transmitting device from the side of the central station with receiving and transmitting modules to facilitate wireless and cable less two-directional data transmitting at the long wall face end.

EFFECT: minimisation of costs for cable laying for underground control system over face support and increase of reliability of face support control.

7 cl, 2 dwg

FIELD: mining.

SUBSTANCE: support control system to control shield support section movement in breakage face of mine contains central device of control (CDC) and set of control units (CU) each of those is located at corresponding section and functionally coupled with this section. At that CU of sections are connected with CDC and between each other with two bus bars and designed so as to facilitate a call of CU of any section from CDC or from CU of the neighbour section to control command input. Also CU of each section is programmed so as to transmit received control commands via the bus bar; the said commands, equipped with a code word assigned to the CU called at that moment, are transmitted to this particular CU for execution. Owing to the second analog bus bar (a parallel one) received signals not equipped with the code word assigned to the CU called at the moment, are transferred to CU of the neighbour section.

EFFECT: upgraded reliability of excavating machine and mechanised support due to safe and trouble free operation of their work with insignificant costs for maintenance.

2 cl, 3 dwg

FIELD: engines and pumps, mining operations.

SUBSTANCE: system composed of hydraulic units for underground mining operations is intended for, particularly, underground working supports, actuators and/or pickups, all of them being encased and interconnected or can be connected, via a data transfer system, to the control unit. Note that every actuator is designed to make every hydraulic unit function operate and/or every pickup is set up to read out the hydraulic conditions at the point of measuring whatever quantity of the walking support. Mind that every actuator (3) and/or sensitive element (7, 8) in its casing (4; 18, 19) are wired to readout unit (20; 30), while hydraulic unit (1) for every function (2) or every point of measurement is connected to data element (12; 13) connected in the circuit to allow a readout unit with a receiver and/or transmitted module (20; 30) to effect a contactless inductive data readout therefrom and to transmit the said data to control unit (6). Data element (12; 13) represents a transponder or a transmitter incorporating a receiver coil. The control unit (6) uses this data via the data transfer system to allow an automatic single-valued identification and reprogramming.

EFFECT: faultless connections.

8 cl, 3 dwg

FIELD: mining.

SUBSTANCE: system includes multiple control units (CU), each positioned at the respective section and functionally conjugated thereto. The CU of each section features multichannel transceiver, whereby a CU communicates to a portable decentralised control device for controlling signal reception and measurement and condition data transmission in the simultaneous transceiving mode. Section CUs are programmed so that controlling signals received by radio are not converted into lining section functions unless the controlling signal carries a code word assigned to the addressed CU. Section CUs are preferably interconnected by two electric buses for transmission of entered data to all section CUs and feature amplifier for restoration of signals received via electric bus.

EFFECT: improved operation reliability of winning machine and powered support due to sustaining safe and fail-proof operation at low cost.

3 cl, 3 dwg

FIELD: mining.

SUBSTANCE: lining sections are connected to an expansion tensioner (ET) conveyor consisting of power cylinders. The lining is equipped with a control system performing data collection and storage and programming continuous concordance of holding force distribution along the breakage face and/or amount of holding forces along the breakage face (total holding force) and/or advancing force distribution along the breakage face at given conveyor position. It allows determining total holding force in respect to the maximum set for it, by ET number, affecting total holding force by axial force adjustment for separate ETs, or affecting total holding force depending on the position of at least one end conveyor section.

EFFECT: minimisation of expansion tensioner number and pressure feeding them at reduced cost.

9 cl, 4 dwg

FIELD: mining.

SUBSTANCE: invention relates to the mining industry and is intended for monitoring movements of sections of the shield support in the working face of the mine. The system has a central control unit (CCU) and a number of peripheral control units (PCU), each of them being located beside the appropriate section and conjugated functionally with the same. PCU of sections are connected with CCU and interconnected by two electric buses so that each PCU can be activated from CCU or from an adjacent PCU for input of a control command. PCU of each section is programmed so as to transmit control commands received through the electric bus provided with a code word assigned to PCU to be activated. Besides PCU of each section has a switch, which enables to disconnect electric buses. By means of the second similar electric bus (the parallel bus) the input signal not provided with the code word assigned to PCU to be activated can be transmitted to PCU of the adjacent section.

EFFECT: safe, trouble-free and reliable operation of the winning machine and the powered support with insignificant expenses for maintenance.

3 cl, 3 dwg

FIELD: mining industry.

SUBSTANCE: method for extraction and underground use of coal includes cleaning extraction and dumping of coal, fixing and controlling ceiling and transporting coal along face to drift. On the drift, in moveable generator, coal is pulverized for intensive burning with use of jets in water boiler firebox, where high temperature of steam is achieved (about 1400 C), enough for decomposition of water on oxygen and hydrogen. These are separated, then oxygen is fed back to jets, and hydrogen is outputted along pipes and hoses in drifts and shaft. Variants of underground generator for realization of this method are provided. Also provided is method for extraction of disturbed coal beds by short faces. It includes extraction and dumping of coal on face conveyor, fixing of ceiling behind combine, moving conveyor line and support sections in direction of cleaning face displacement, control of ceiling with destruction and partial filling. Extraction of coal is performed in short curvilinear faces by long stripes along bed, in straight drive without forwarding drifts, with preservation and reuse of ventilation and conveyor drifts, equipped with mounting manipulator robots, with fixing behind combine by automatically operating support deflectors without unloading and displacing sections in area of coal extraction. Extraction and transporting of coal is performed by fast one-drum combine and curvilinear reloading conveyor, supplying coal to drift conveyor or immediately to underground gas or energy generator placed immediately on drift. Also proposed is face scraper conveyor for realization of said method, wherein pans are made with step along front face profile, greater, than along back one, while forming common line curved towards face with constant curvature. Also proposed is a method for controlling complex for unmanned coal extraction.

EFFECT: higher efficiency, effectiveness, broader functional capabilities.

8 cl, 5 dwg

FIELD: mining.

SUBSTANCE: invention relates to the mining industry and is intended for monitoring movements of sections of the shield support in the working face of the mine. The system has a central control unit (CCU) and a number of peripheral control units (PCU), each of them being located beside the appropriate section and conjugated functionally with the same. PCU of sections are connected with CCU and interconnected by two electric buses so that each PCU can be activated from CCU or from an adjacent PCU for input of a control command. PCU of each section is programmed so as to transmit control commands received through the electric bus provided with a code word assigned to PCU to be activated. Besides PCU of each section has a switch, which enables to disconnect electric buses. By means of the second similar electric bus (the parallel bus) the input signal not provided with the code word assigned to PCU to be activated can be transmitted to PCU of the adjacent section.

EFFECT: safe, trouble-free and reliable operation of the winning machine and the powered support with insignificant expenses for maintenance.

3 cl, 3 dwg

FIELD: mining.

SUBSTANCE: lining sections are connected to an expansion tensioner (ET) conveyor consisting of power cylinders. The lining is equipped with a control system performing data collection and storage and programming continuous concordance of holding force distribution along the breakage face and/or amount of holding forces along the breakage face (total holding force) and/or advancing force distribution along the breakage face at given conveyor position. It allows determining total holding force in respect to the maximum set for it, by ET number, affecting total holding force by axial force adjustment for separate ETs, or affecting total holding force depending on the position of at least one end conveyor section.

EFFECT: minimisation of expansion tensioner number and pressure feeding them at reduced cost.

9 cl, 4 dwg

FIELD: mining.

SUBSTANCE: system includes multiple control units (CU), each positioned at the respective section and functionally conjugated thereto. The CU of each section features multichannel transceiver, whereby a CU communicates to a portable decentralised control device for controlling signal reception and measurement and condition data transmission in the simultaneous transceiving mode. Section CUs are programmed so that controlling signals received by radio are not converted into lining section functions unless the controlling signal carries a code word assigned to the addressed CU. Section CUs are preferably interconnected by two electric buses for transmission of entered data to all section CUs and feature amplifier for restoration of signals received via electric bus.

EFFECT: improved operation reliability of winning machine and powered support due to sustaining safe and fail-proof operation at low cost.

3 cl, 3 dwg

FIELD: engines and pumps, mining operations.

SUBSTANCE: system composed of hydraulic units for underground mining operations is intended for, particularly, underground working supports, actuators and/or pickups, all of them being encased and interconnected or can be connected, via a data transfer system, to the control unit. Note that every actuator is designed to make every hydraulic unit function operate and/or every pickup is set up to read out the hydraulic conditions at the point of measuring whatever quantity of the walking support. Mind that every actuator (3) and/or sensitive element (7, 8) in its casing (4; 18, 19) are wired to readout unit (20; 30), while hydraulic unit (1) for every function (2) or every point of measurement is connected to data element (12; 13) connected in the circuit to allow a readout unit with a receiver and/or transmitted module (20; 30) to effect a contactless inductive data readout therefrom and to transmit the said data to control unit (6). Data element (12; 13) represents a transponder or a transmitter incorporating a receiver coil. The control unit (6) uses this data via the data transfer system to allow an automatic single-valued identification and reprogramming.

EFFECT: faultless connections.

8 cl, 3 dwg

FIELD: mining.

SUBSTANCE: support control system to control shield support section movement in breakage face of mine contains central device of control (CDC) and set of control units (CU) each of those is located at corresponding section and functionally coupled with this section. At that CU of sections are connected with CDC and between each other with two bus bars and designed so as to facilitate a call of CU of any section from CDC or from CU of the neighbour section to control command input. Also CU of each section is programmed so as to transmit received control commands via the bus bar; the said commands, equipped with a code word assigned to the CU called at that moment, are transmitted to this particular CU for execution. Owing to the second analog bus bar (a parallel one) received signals not equipped with the code word assigned to the CU called at the moment, are transferred to CU of the neighbour section.

EFFECT: upgraded reliability of excavating machine and mechanised support due to safe and trouble free operation of their work with insignificant costs for maintenance.

2 cl, 3 dwg

FIELD: mining.

SUBSTANCE: invention relates to control system over underground face support with transport. The control system for underground walking face support consists of transporter, winning machine, plurality of panels each equipped with a block of functional control with a corresponding panel, of a facility connecting control blocks between themselves, of a central station located outside long wall face and communicating means for transmitting data between control blocks in the long wall face and the central station outside long wall face. The communicating means include at least one radio transmitting device from the side of the long wall face and one radio transmitting device from the side of the central station with receiving and transmitting modules to facilitate wireless and cable less two-directional data transmitting at the long wall face end.

EFFECT: minimisation of costs for cable laying for underground control system over face support and increase of reliability of face support control.

7 cl, 2 dwg

FIELD: mining.

SUBSTANCE: equipment consists of electric-hydraulic driven sections of lining with corresponding facility for lining control. Additionally, there is foreseen at least one doubled block of power source, which provides current for at least two means of lining control of different sections of lining independently from each other. A double-sided element of communication is installed between the power source block and at least two means of lining control; this element performs galvanic separation between the power source block and means of lining control and/or groups of means of lining control. Also the element of communication forms a galvanic separated data transmitting channel which facilitates communicating between two means of lining control and/or groups of means of lining control. Notably, double-sided element of communication is in-built into the power source block or is flange mounted directly on the case of power source block.

EFFECT: simplification of design of face equipment.

4 cl, 2 dwg

FIELD: mining.

SUBSTANCE: extraction device of coal in longwall face of underground mine working consists of the following: many sections of powered support, which are installed near each other throughout the length of longwall face between gates; plough machine; chute and conveyor located in it with possibility of movement, which are located throughout the length of longwall face between extraction machine and support sections; several deflecting devices and control device. Plough machine is provided with possibility of being moved along the line of the mining face and equipped with rock detection sensor which is provided with possibility of transmitting radio data of the detected rock to the control device of the support by means of the transmitter installed on the plough and the radio receivers installed along the longwall face. Group of adjacent support sections and sections of the chute corresponds to each deflecting device. Deflecting device is connected to control unit of one of the support sections of the appropriate group, and depending on the data of the detected rock, it provides the possibility of lifting the chute sections of the appropriate group, which is accompanied with lowering of the tools of the plough machine, and lowering of the chute sections, which is accompanied with lifting of plough machine tools. Control device includes the following: bottomhole control unit located at the end of longwall face for control of functions of support sections in relation to unloading, transportation and bracing of the support; control units of sections, each of which is put into spatial and functional compliance with the appropriate support section for performing and further transmitting the commands from bottomhole control unit; and the bus connecting mainly in series the bottomhole control unit to control units of support sections. At that, rock sensor when moving beside each support section is provided with possibility of generating the measurement signal characterising the detected rock only for several, mainly not more than two measurement points. Measurement signals received at neighbouring measurement points are subject to analysis with a view to predominance of rock or coal. Depending on analysis results, there generated is deviation signal supplied to the common deflecting device common for all measurement points, and namely to the deflection of the chute sections, which causes the lifting of plough machine tools if analysis results show the predominance of rock at the analysed measurement points, and to deflection of the chute sections, which causes the lowering of the plough machine tools if the analysis results show coal predominance at the analysed measurement points.

EFFECT: possible quick correction of the plough machine position during the coal extraction, which causes the lifting and lowering of the plough.

9 cl, 2 dwg

FIELD: mining.

SUBSTANCE: in control method of drum actuating element equipped at least with one lever of drum actuating element each electric hydraulic section of the support is equipped with its own electric hydraulic control instrument. Control commands are entered for correction of lever position of drum actuating element from control instrument of support section. And they are supplied from there to control system of drum actuating element.

EFFECT: improving control efficiency of the cut by means of drum actuating element.

8 cl

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