Support control system designed to control shield support section movement in breakage face of mine

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

 

The present invention relates to a control system support is designed to control the movements of shields in a mining face (the face) of mine. This control system is known, for example, application DE 10207698.7 A1 (TVT 2104) and DE 19982113.5-24 A1 (TBT 9805).

This management system support allows you to control individual sections of powered roof supports, referred to in this description of the sections of the shield lining, with a Central control device or through a separate control units located at the respective sections of the shield supports and associated with them. The control unit of one section, you can manage other sections, arranged with her next door or in its surroundings. In principle, the control signals are fed to the control units of all sections common to all units of the line. However, the control units of the sections are programmed so that on command on-off switch reacts before their implementation, only the control unit, which is assigned to the code word sent from the management team. All other modules of sections transmit the control signal with a code word further.

When the input control command is engaged in the General line (electric bus).

The present invention is to create a management system support, enabling one is temporarily managing the transmit signal and other signals.

The solution to this problem is achieved in the system management support is designed to control the movements of the sections of the shield support in clearing the mine bottom, and containing a Central control device and a multitude of control units, each of which is located in the corresponding section and functionally paired with her. To enter a control command from the Central control unit or control unit adjacent section of the control units of all sections connected to the Central control device, and between an electric bus input control commands are fed into the control units of all sections. Control commands received via the electrical bus, equipped with a codeword and transmitted for execution to the control unit section, which is the code word assigned.

According to the invention, the control units of all sections connected to the Central control unit and each other similar to the second electrical bus (parallel bus). When this control commands and measurement data and status data transmitted by the first and second electrical bus, and the control unit of each section has an amplifier for amplifying the transmitted digital control and measurement signals and programmed with software implemented in the input element, the processing control signals, coming through one of the electrical tires from the control unit adjacent section, including:

- processing of control signals supplied code word assigned to the called control section for transmitting these signals to the respective functional elements called section;

- performed simultaneously and without delay in the time available to one of the two electric tire issue handshaking signal, which is confirmed by the receipt and/or execution of the control command, and

- gain control signals not containing a code word assigned to the called control section, in the amplifier, located in the unit control section, and the transmission of these signals to the control unit adjacent section.

Because of the length of the stope there is a danger that in the transmission of signals from the control unit of one section in the control unit of another partition panel supports these signals will be so weakened that the remote control units and the Central control device will not be able to accept them.

This issue is fixed for both electric buses, respectively, for all transmitted signals, at the expense of carrying out the invention according to claim 2 of the formula.

Regardless of the input control signals, the invention allows so is e to transfer to the operator, accordingly, the Central control unit, the signals from the measuring devices or other status signals. Similarly, for each control signal, simultaneously and without delay in time, may be issued a handshaking signal, which is confirmed by the receipt and/or execution of the control command.

Below is an example implementation of the invention with reference to the accompanying drawings on which is shown:

figure 1 is a view in section of stope with lining;

figure 2 - schematic top view of the mining machine and a group of shields;

figure 3 - scheme of the mutual arrangement of the Central control unit and controls sections of the shield supports.

Figure 1 shows one of the sections 1-18 lining. Figure 2 shows many of the sections 1-18 lining. Sections are located along the reservoir 20. Development of the reservoir 20 is the cutting tool 23, 24 cleaning machine 21 in the direction 22 of manufacture. In this example, the execution of the invention, the treatment machine made in the form of excavation (electric) cars 21 of the cutting action.

Extraction machine 21 can move in the direction 19 of cutting through not shown in the drawing reinforced Shearer cable. She has two cutting drum 23, 24, which are mounted at different heights and cut into the coal wall, beating coal. The broken coal load, the continuing excavation machine, also called cleaning machine on the conveyor. The conveyor consists of a tray 25, which is along the front of the coal face moves heavy scraper conveyor. Extraction machine 21 mounted for movement along the front of the coal face. The tray 25 is divided into separate sections, which, being connected to each other, can move relative to each other in the direction 22 of manufacture. Each section of the tray is connected with its corresponding section 1-18 supports power cylinder 29 (cylinder stride feed or advancing), which is an Executive body. Each of the shields can be used to mount stope. This goal is yet another of the power cylinder 30, arching support and roof slabs. Roofing plate on its front, facing the reservoir end, is the so-called protivoatomnoi flap 48 that is designed to maintain the plane of the face. This flap may be biased towards waste coal wall. Before driving the mining machine 21 protivoatomnoi plate 48 must be removed. For this purpose, there is another power cylinder, not shown. These functional elements separate sections of powered roof supports are presented here only as an example. There are other functional elements, but for the understanding of the invention and their rassmotreni and description is not required.

As mentioned above, each of the Executive departments is a hydraulic cylinder.

These cylinders are driven by the main valve 44 and the auxiliary valve 45, used for pre-amplification of the regulatory impact. On the auxiliary valve device 40 of the control valve, i.e. the case with the device control valve.

In figure 2 the mining machine shown in the process of movement to the right. So protivoatomnoi flap section 17 of the lining must be removed, i.e. folded back. On the other hand, the section of the tray 25, which is at section 9 of the lining, which is in the direction 19 movement is behind the mining machine 21, is moved forward in the direction of working of the coal wall. Also ahead, towards the bottom, respectively, to the working of the coal wall, move the subsequent sections 8, 7, 6, 5 and 4 in the liner. These shields protivoatomnoi flap back folded down. Sections 3, 2, 1 roof supports are advanced to the ready position and remain in this position until such time as the mining machine is again approaching on the right. The control of these movements is partly performed automatically, depending on the motion and the instantaneous position of the mining machine and partly by hand. For this purpose, with each section 1-18 to the ETUI is the appropriate unit 34 of the management, functionally mated with her. For each group of sections, respectively, control units sections shield roof support is provided by the device 33 control mechanisms stope. The control unit 34 refers to one of the sections 1-18 supports and is connected with 45 auxiliary and main valves 44 all Executive bodies of the sections 1, 2, 3... (up to 18) lining through the appropriate device 40 control valves (microprocessor).

Each of the control units of the partition panel lining serves as the Central control device. However, a group of several control units of the sections may be subordinated to the device 33 control mechanisms stope or all control units of the sections can be controlled by the Central control device support (main 50 and/or 51 auxiliary devices centralized management)which communicates with the control units of sections. This option is shown in figure 2.

The Central control device support consists of the main 50 and 51 of the auxiliary devices centralized control.

All blocks 34 section control panel supports are interconnected by a cable 58 (electric bus). Through each of these control blocks of the partition panel lining transmitted control commands for controlling lining. Managing to the cunt when referring to specific sections of the support causes a particular function, for example, in terms of discharge hydraulic rack, the movement section of the thrust section. This command is accepted and transferred further to the electrical bus 58 all the blocks 34 of the control sections of the shield supports. Any control commands issued by one of the devices 33 control mechanisms stope, immediately entered into the control unit section, directly connected with the device 33 control mechanisms stope. Then the control commands received from the control unit in this section of the shield supports for electrical bus 58 all other blocks 34 of the control sections of the shield supports. However, due to pre-coding this command activates practicing certain steps of the control unit only one of the sections 1-18 shield lining, or the control units of a certain group of sections of the shield supports. Then activated the unit control section converts the received control command in command, control valves, supplied to the control valves, respectively, the main valves serving the mechanisms of the corresponding (-) section(s) supports.

Automated calling functions and their testing process is described, for example, in the application DE-A1 19546427.3.

For centralized manual input command is the device 37 of the control executed in the form of manual portauprince and carry with you the operator. To enter commands, the operator can stand outside lava or at least away from the site of direct extraction of minerals.

The manual control unit is connected by a radio channel with the radio devices 38 33 control mechanisms stope. The manual control unit in the form of a parallelepiped has on one side (controls) control buttons. Using these buttons you can also enter code sagastume currently control unit shield (one of the blocks 34.1, 34.2... control sections shield lining) and to issue a control command to call the specified function or mode of its execution (for example, unloading hydraulic rack or shifting of the shields). For the wireless transmission is used, for example, the antenna 39 manual remote control.

If the operator will turn the manual control unit 180° around its longitudinal axis, he will see his side control. On this side on the remote control there are two diodes, display, and other buttons. The operator can cover both diode of his helmet lamp. If he closes one of the diodes, for example, a finger, the remote control will go into monitor mode. For carrying out control operations, the operator enters the code on the test cell lining. As a result of this handheld remote control is via its infrared transceiver device 35 is connected with a tuned him an infrared transceiver device 36 requested through the device code 33 control mechanisms stope. Now using one of the buttons, you can poll section on the compliance of certain functions or their operating status. For this purpose, in the device management mechanisms stope program, which through the code in the requested device 33 of the control section of the panel lining can be sent, and to develop a series of queries regarding the availability of certain functions, operation status section and the accurate performance of her functions. The received data is then passed through an infrared transceiver devices 35, 36 on the manual control unit and displayed on the display. Thus, the operator can be sure that some support is still working or already require maintenance, replacement of functional elements or controls.

The result is a safe, reliable and safe operation of mining machines and mechanized roof supports with minor maintenance costs. It was found that when underground work possible reliable, without interference, the transmission by radio of the required signals the position and direction of motion, and that using one or the few radios may sound management support, even at considerable length stope. To this end, the control system is designed with the special the spine, what signals directed to one or more control devices, are transmitted to other devices, and through the use of shared computing resources can be reliably measured sections of the support requested in a given time. In respect of technical means of implementing such a system, reference is made to DE 19546427.3.

It has already been mentioned that the blocks 34 of the control sections of the shield supports are interconnected by a cable 58, which in the above-described embodiments, only has two cores and is used for serial transmission of code words and control commands for mechanisms lining. In response to the received command work only those blocks 34 of the control, respectively, the partitions shield lining, for which the stored code word is identical to the transmitted codeword. Thus, the cable 58 is a two-conductor cable, laid in the form of electric bus from the control unit 34 of one section of the shield lining to the control unit of the next section and connecting with each other through adjacent blocks 34 control sections shield lining, the main 50 and 51 auxiliary devices centralized control.

In accordance with the present invention instead used still only a two-wire cable 58 in parallel with it laid the second DV is hilly cable 59, referred to in the present application is a parallel bus. The cables 58, 59 are also known as electric buses.

The principle of connecting cables in separate blocks 34 of the control sections of the shield roof support shown in figure 3. Many control blocks of the partition panel lining shows two such blocks 34.1 and 34.2 management. The controls sections of the shield supports are connected by electric buses 58 and 59 with the main device 50 Central management and support device 51 of centralized control. Electric bus 58 contains two phases 58.1 and 58.2, and the electric bus 59 - two phases 59.1 and 59.2.

All four phases of both electric tire is connected to the input 52 of the blocks 34.1, 34.2,... control sections shield lining. The signals from the input items are processed in the control units of the sections of the shield supports, i.e. checked for compliance with the code word transmitted together with the signal, so the code word that is assigned to the corresponding unit 34 of the control section of the panel lining and stored in memory. Since the transmitted signals are control signals, it is then appropriate treatment and transfer them to the appropriate functional elements of the partition panel lining, which were described above.

One phase (and 58.2 59.2) each electrical bus connected to the horizontal is gnome element 53. The corresponding phase out of the switching element 53 through the output and then fed to the corresponding switching element 53 block 34.2 control adjacent partition panel lining. In the switching element 53 both phase and 58.2 59.2 can be opened simultaneously or separately.

Another phase (and 58.1 59.1) electric tire, respectively, 58 and 59 in this case connected to the element-amplifier 54. With the release of this element of the amplifier corresponding phase connected to the element-amplifier unit 34.2 control adjacent partition panel lining. In this case, each block 34.1, 34.2,... management section of the panel lining is another "right" input element 52, which receives and processes the signals coming from the right side, i.e. from the auxiliary device 51 centralized control or block 34.3,... control is located to the right of the partition panel lining. Thus, blocks 34.1, 34.2 control adjacent sections of the shield supports also are connected by two cables, each of which has two phases.

The switch 53 with its two switching elements is a normally-closed, allowing the passage of current through it. However, in case of any fault occurs in the interruption of electric buses. First, this makes it easier to troubleshoot. To this end one of the UE is alausa device (main device centralized management, auxiliary device centralized management, handheld remote control, device control mechanisms stope or the control unit section) opens separately and alternately switching elements of the control units of the sections of the shield supports located to the left or to the right, and then sends the control signal. Since the control signal is immediately acknowledged by respective control units of the partition panel lining, into which he entered, so you can determine which of the control units of the sections of the shield supports are detached from the defective control unit section shield lining. Secondly, the opening can be made in case of failure to isolate the defective module shield and disconnect it from the electrical bus, respectively, of electric buses. This provides access to the control units of other sections of the shield support, and Troubleshooting can be done without stopping the work in the lava.

In the element-amplifier 54 is recovered, the incoming digital signals. This is achieved by the fact that the element-power sets, exceed the incoming signals a certain predetermined threshold value. If Yes, then the output signals are generated greater force, predpochtite is correctly signals the initial force, to ensure the passage of signals through the control units of all sections of the shield supports. This type of amplification seems particularly appropriate, since the control signals, measurement signals, etc. are transmitted in digital form.

Now if one of the devices 50, 51 centralized management or device 37 input (figure 2) in the system will be the management team, this control command is transmitted on the electrical bus 58 or 59, which at the moment will be free. When this control commands are described above, through separate blocks 34.1, 34.2,... control sections shield lining. Only triggered by the control unit section shield lining, for which a stored code word coincides with a code word, which is supplied with the control signal. Receiving and/or executing the corresponding control command can be confirmed by handshaking signal, because there is one of two electric tire 58 or 59. The handshaking signal can be transmitted immediately and without time delay, so that the input device, i.e. on the host device 50 of centralized control, auxiliary device 51 centralized management or on the staff 37 management, it is also possible immediate control. Appropriate control of the Commissioner, the signals are transmitted to the device 40 of the control valve (figure 1). The result triggered the Executive solenoid pilot valve 45 for more gain and is driven by the main valve 44 Executive body 30. After that, the signals of the pressure sensors located at each of the Executive departments and/or valves, can also be transmitted back to electric buses.

1. Management system support is designed to control the movements of the sections of the shield support in clearing the mine bottom, and containing a Central control device and a multitude of control units, each of which is located in the corresponding section and functionally paired with her, and to enter a control command from the Central control unit or control unit adjacent section of the control units of all sections connected to the Central control device, and between an electrical bus which input control commands are fed into the control units of all sections, and the control commands received via the electrical bus, equipped with a codeword and transmitted for execution in block control section, which is the code word assigned, characterized in that the control units of all sections connected to the Central control device and between a second similar electrical bus (the parallel bus), and control commands, as well as measurement data and status data transmitted by the first and second electrical bus, and the control unit of each section has an amplifier for amplifying the transmitted digital control and measurement signals and programmed with software implemented in its input elements processing control signals for one of the electric tire from the control unit adjacent section, including

processing of control signals supplied code word assigned to the called control section for transmitting these signals to the appropriate functional units called partitions,

performed simultaneously and without delay in the time available to one of the two electric tire issue handshaking signal, which is confirmed by the receipt and/or execution of the control command, and

the gain control signals not containing a code word assigned to the called control section, in the amplifier, located in the unit control section, and the transmission of these signals to the control unit adjacent section.

2. Management system support according to claim 1, characterized in that the control unit of each section has a switching element that allows rasmijoti one phase, at least one of the electrical devices is ski tires.



 

Same patents:

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.

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Shield // 2219344
The invention relates to mining and can be used in mechanized mount Stopes in underground mining

Shield // 2215156
The invention relates to mining and can be used in mechanized mount Stopes in underground mining

Shield // 2215153
The invention relates to mining and can be used in mechanized mount Stopes in underground mining

The invention relates to remote actuation of one of the many control devices for racks in the underground lining slaughter

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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.

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FIELD: mining.

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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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