Device for determining cutting line of extraction system during mining and element of pan for it

FIELD: mining.

SUBSTANCE: device for determining the cutting line of the extraction system during mining, namely of coal plough system, includes movable conveyor consisting of individual pan elements, each of which has conveyor pan having upper conveyor branch and lower conveyor branch and guide section installed on the front side of mining face, as guide device for extraction machine, and having at least one optic sensor containing sensor head arranged in sensor carrier and capable of being pressed by means of at least one pressure device to boundary surface between coal and bottom to be found. At that, multiple pan elements distributed throughout the length of conveyor are made as sensor pans equipped with protected cavity open to bottom, in which sensor carrier is located or can be located with possibility of its being removed together with sensor head.

EFFECT: reliable detection of boundary surface between coal and bottom with improved operating reliability and minimised susceptibility to wear.

35 cl, 4 dwg

 

The invention relates to a device for determining the line cutting system excavation the excavation, in particular to the system of the coal plow having a floating pipeline, made up of individual elements of the pan, which in each case has a conveyor pan having an upper branch and the lower branch of the conveyor, and a guide section with the guide elements mounted on the sides of the front stope as a guide for the mining machine, and having at least one optical detecting sensor for detecting the boundary surface between the coal and the underlying rock, and having a sensor head placed on the media sensor and capable snuggle up at least one clamping means to the boundary layer subject to discovery. The invention also relates to an element of a trough to the conveyor system excavation the excavation, with the pan conveyor with the upper branch and the lower branch of the conveyor and the guide section mounted on him by the front of the stope, as a guiding device for a mining machine, in particular for use in the device of this type.

For a long time in the underground excavation attempts were made to detect the boundary surface between the underlying rock and coal in the United provedenii works to adapt (installation line cutting) groundwater extraction system in the most optimal possible mode, according to certain values for the boundary surface, to the profile of the layer of coal over the layer of rock that forms the underlying rock, and not subject to production. To detect the boundary surface often use optical detection sensors with optical sensor head and an optical window, a United front of the head, is, in particular, as the sapphire window. Using sensors in the sensor head different reflectivity of the underlying rocks and coal used optical and served as the measuring signal through the optical waveguides in optoelektronische Converter and sequentially by the evaluation unit that calculates the profile of the boundary surface between the underlying rock and coal output signals.

In detection systems profile boundary surface between the underlying rock and coal, which previously was frequently used in trials in underground tunnelling, an optical sensor installed in the excavation machine drilling, as a result, there is constantly measured signal for the current position of the mining machine penetrations through the detecting sensor or, if necessary, by using two systems of optical detection in a car sinking. A common device of this type for excavation system with a coal plow detail OPI the ANO in German patent 19925949 B1. Known detecting sensor is located with the possibility of bias in the media sensor and fixed as remanufactured part in the socket in the case of excavation plane. Touch the head is shifted in the direction of the underlying rocks by using a compression spring, to ensure contact with the boundary surface to be detected. The media sensor is installed eccentrically relative to the axis of symmetry of the hull of the plane near one of the two rotary media tool of the coal plough. Touch the head has from one end of the wear Shoe designed to protect the crystal window from destruction. However, during long term operation it was found that the life of the optical detecting sensor is relatively short and the optical detecting sensor must be replaced not less than two-three months. The experience gained during operation, shows that the service life of the less than greater than the selected pressure force on the sensor head by a spring which presses it to the boundary surface to be detected, the more uneven is the profile of the underlying rocks considering depressions or recesses and the more the selected speed of the plane. Moreover, the eccentric location of the optical sensor leads to various loaded the Yu for different directions of the plane.

In German patent 4414578 C2 to determine the boundary surface between the underlying rock and coal through the optical detecting sensors, the applicant has proposed not to move the optical sensors with excavation system, and embed them in the front leg tracking device guide device of the machine, to optical sensors were permanently located above the underlying rock and was able to detect a boundary surface. The advantage of this is, essentially, a stationary arrangement of the optical sensors is a substantial increase in operational reliability with regard to significantly less stress on the individual detecting sensors. However, the disadvantage is the presence of only a very small space for installation of optical detecting sensors to monitor the adaptation of the machine for coal plow and the fact that the optical waveguides must be unprotected, in any case, partially on the bottom surface of the tracking devices of the machine. To date, the position detecting sensors proposed in the German patent 4414578 C2, practically not implemented.

The purpose of the present invention is to provide a device for determining the line cutting system excavation the excavation and elements is estaca, suitable for this purpose, ensuring reliable detection of the boundary surface between the coal and the underlying rock with increased operational reliability and minimized susceptibility to wear.

According to the invention is achieved in the respective device due to the location along the length of the pipeline to the set of elements of a trough is made as a touch pans with nests located in a protected position or armored, which are open to the underlying rocks and in which the media can be removed together with the sensor head. In addition, in the device according to the invention uses a sensor head that can Nestle clamping means to the boundary surface to be detected and not included in the mining machines are moved, as in the known devices, but included a fixed way with many elements of the pan, distributed along the length of the conveyor, resulting in the formation of sensory pans. Because they use essentially stationary optical sensors that move, mainly when moving conveyor, the friction acting on the optical window, such as, in particular, sapphire window, and any wear due to the pressure force on the underlying rock at the its through presses elements, is essentially less than in the optical sensors that are moved together with the mining machine. Additionally, you no longer need to install radio communications between a floating optical sensor and mechanical support, etc. because the data transfer can occur without problems through the cable transmission lines.

For a message sufficient information to profile the boundary surface between the coal and the underlying rock, in addition to the optical sensors distributed along the length of the conveyor, each element of the pan conveyor, or, if necessary, every nth element of a trough, for example, every fifth or fifteenth, preferably approximately one-eighth and the tenth element of a trough conveyor is designed as touch the pan. Depending on the length of individual pan the distance between the two optical sensors is approximately 1.8 to 15 meters, or approximately 20 m, even if any optical sensor fails, sufficient information is available on the touch pan for a reliable determination of the profile of the underlying rocks on the detecting signals of the sensors and to provide the information they control actuation system excavation the excavation. The underground system of excavation the excavation may operate, in particular, p is a tool widely represented cylinder actuators, adapting the upper position of the mining machine to the changed level of the underlying rocks and thus guides the line cutting mining machine on the actual profile of the underlying rocks.

The above objective is also achieved, in particular, appropriate elements of a trough is made as a touch pans and with a secure socket open to the underlying rock for placement with the possibility of removing the carrier by the optical sensor, able to cross over the boundary surface, at least one clamping means for detecting the boundary surface between the coal and the underlying rock. In the most preferred embodiment of the invention, the media sensor is located in the nest, made near the side profile from the front stope upper branch and the lower branch of the conveyor. The media sensor is a small distance from the front stope, corresponding to an approximate depth guide device of the machine for guiding the mining machine, carrying the cutting tools. Specified distance, specially selected in the invention determines the position detecting sensor from the reference surface of the guide device of the machine, greatly increases the available question ransta to the nest, in the result that are able to use optical detection sensors with significantly higher resistance to wear and at the same time equipped with clamping means. In one preferred embodiment of the invention, the socket can be performed in the side wall from the front stope sections of the pipeline or, more preferably, in the connection panel of the goaf side of the guide section. The location of the nest and, thus, also the media sensor comprising a sensor head, the connecting wall of the guide section can be implemented particularly simply if the guide section includes cast part having a built-connecting wall of the corresponding solid configuration.

Preferably the use of the device according to the invention or elements of a trough according to the invention in plow systems, in which the guiding device is designed as a guiding device of a plane, with the channels of the chain belt chain conveyor for excavation plane and having a tracking device machines for excavation of a plane, while in the most preferred embodiment of the invention the socket is located on the dam side channel circuit. Installing the optical detecting sensors on the dam with the Auron channel circuit greatly simplifies maintenance in comparison with solutions known in the prior art, since the optical detection sensors can be dismantled or installed without the forced dismantling of the tracking devices of the machine or without the passage of the miner in front of the body plane. Especially preferred for maintenance and possible requested installation or removal, if the socket is held in a section of pipeline or rail sections from top to bottom and installing/removing the media sensor is made possible with the upper branch of the conveyor.

In one preferred embodiment of the invention, the socket may have a cylindrical cross-section and/or the media sensor may be performed preferably by a cylindrical piece body which can be inserted into the slot in the internal volume of which is holding the tool and sensor head is mounted so that it can move the holding means.

Because there is sufficient total height of the side wall or the connecting wall between the conveyor and guiding device of the machine, the media sensor can essentially be used, as described in German patent 19925949 A1 included in this description by reference. In the corresponding embodiment of the invention, the hole of the mounting/Dismounting socket to accommodate the media sensor can be hermetically closed the AMB, in particular, by the side of the profile parts with the possibility of removing the side profile of the upper branch of the conveyor from the front stope. Side profile detail with little full-length, it is relatively easy to fix, as part of the lintel to the element pan or similarly by bolting.

In an alternative embodiment of the invention the carrier of the sensor can be positioned in the slot with the open edge on the lower surface of the guide or pan so that it can be displaced relative to the guide section of the conveyor or trough, at least one clamping means. In this embodiment of the invention sensor head no longer moves relative to the carrier sensor clamping means, but instead, use the media sensor wear-resistant configuration, in which is embedded fixedly mounted sensor head, and the media sensor is located movably in the nest together with sensor head for pressing a sensor head in the media sensor to the boundary surface to be detected, regardless of the profile of the underlying rocks. Slot media sensor of this type can be performed, in particular, in a protected area goaf side of the connecting wall section on rawsumer device of the machine, preferably made in the form of molded parts. The relevant section of the guide device of the machine can have, in particular, the connecting wall forming at least partially profiled end scrapers on the lower branch of the conveyor, and may be the point of welding to the platform of the lower branch of the conveyor, the slot detecting sensor is located under the platform of the lower branch of the conveyor at the goaf side of the connecting wall. The corresponding members of the pan may have a bearing rib located, in particular, under the platform of the lower branch of the conveyor, which is installed with the possibility of replacing the media sensor. At the same time supporting rib may form transverse shield for the roaming carrier sensor, in particular, if the media sensor is located between the two supporting ribs.

The electronic circuit of the sensor for converting the optical signal can be located directly in the socket. Alternative electronic circuit of the sensor can be located on the side wall of the goaf side of the elements of the pan, the most preferred is the use of optical cable, such as, in particular, an optical waveguide or harness optical waveguides laid in the intermediate bottom between the upper branch and the lower branch of the conveyor. If the media sensor at the same time equipped with the electronic circuitry of the sensor and is located together with the latter in the socket, the electrical connecting cable can be laid in alternate intermediate bottom between the upper branch and the lower branch of the conveyor for the supply of electrical power and signals between the controller excavation or long stope and optical detection sensors.

Most preferably, in all embodiments, the implementation of the use of clamping means containing at least one spring. The media sensor is made as a cylindrical piece body, the spring can be installed in part of the casing and may create pressure on the sensor head relative to the casing in the direction of the boundary surface to be detected. The media sensor, which can be moved in the slot, preferably using a number of compression springs. The optical window, in particular sapphire window, preferably connected ahead of the sensor head. Because the notches in General, when driving moves to the cutting depth after each passage of the mining machine, touch the head or, in particular, optical window, is equipped with a safety strap. This safety bar can be made, in particular, in view of the V-shaped safety strap, the vertex of which is directed in the direction of displacement, even rock placed around, can not damage the optical window during the move operation. To ensure that after each move operation detection boundary surface without disturbing the reflectivity, pneumatic tool, in particular a means of compressed air, can be set according to a more preferred variant of the invention, for cleaning the optical Windows in the touch pans. Pneumatic tool can be opened, for example, in the nozzle, which is equipped with an optical window, and blow on the optical window, cleaning it during the move operation. As an alternative or in addition, mechanical lifting means opposing the force of the pressure of clamping means may be equipped for lifting, if you touch the head or the media sensor. When this lifting means may also preferably have the actuator, for example, during a move operation, as an additional measure of protection for sensor head press in the past or the media sensor in the socket, and to prevent the release on the boundary surface of clamping means after the end of the move operation. However, the lifting means may also elect magnitno control.

Further advantages and refinements of the invention follow from the description of embodiments, which are examples schematically shown in the following drawings.

1 schematically shows in cross section through the front face of the hollow plow system according to the invention, with touch pan and a controller to set the line of cut of the plow.

Figure 2 shows a vertical section through the end-side front stope touch of a trough according to the first variant embodiment of the invention.

Figure 3 shows a vertical section through the end-side front stope touch of a trough according to the second variant implementation.

Figure 4 shows a detailed view of the node IV figure 3.

Plow system, schematically shown in figure 1, the basic design of which is known, contains the face conveyor 1, located in front of the front gate (not shown)that can move in the upper direction and is made in the form of an armoured flexible conveyor. Only one element 1' of the pan conveyor shown in figure 1. The coal plane 3, which loads the coal mined at the front of the stope in the mode of open mine workings in the face conveyor 1, is directed to the conveyor 1, as the mining machine. Accordingly mined coal can be transported is by using the AFC 1. Coal plow 3 permanently routed to the guide device of a plane or guiding device of the machine, which is installed in the guide section 4 from the front stope on section 2 of the pan conveyor of each element 1' of the pan AFC 1. Moving forward and backward coal plow 3 through the chain plane, located in the channels 5, 6 chain in the guide section 4, forming a guiding device of the machine, and the coal plane 3 is connected to the circuit plane at the bottom of the channel 6 of the circuit, as is well-known specialist in mining and tunneling.

To regulate the horizon or to level the plow system containing the face conveyor 1, the coal plane 3 and a guiding device of a plane, each element 1' of a trough conveyor 1 or each second element 1' of a trough conveyor 1 is equipped with a hydraulic cylinder 7 of the actuator located obliquely to the underlying rock, and established one end to the nozzle 8 promoting beams 9 promotion mechanism and the other end to the hinge cylinder 11 on the element 1' of the pan. Promoting the beam 9 is located between the lower support platform 12 of the supporting frame 10 shield lining, with which the front stope remains open and allows for automatic transfer of the mining system is neither. Line cutting coal plow 3, forming extraction machine can be adjusted by the extension or retraction of the cylinder 7 of the actuator with the installation of the line of cut in the best case scenario, so that the lower knives 14 coal plow 3 cut regarding exactly on the boundary layer between the underlying rock, non-extraction, and coal, to be prey.

Figure 1 schematically shows the optical detecting sensor 20 located in the slot in the connecting wall of the guide section 4 on the goaf side of the channels 5, 6 circuit, whereby it is possible to detect the boundary surface between the underlying rock and coal on the lower side of the guide section 4. Each element of the pan or each section of the guide device of the machine, spaced along the length of the extraction system can be equipped with the appropriate optical detecting sensor 20. However, if necessary, may be sufficient to provide not every element of the pan or not each section of the guide device of the machine corresponding optical detecting sensor 20, but instead only be performed approximately every fifth or tenth pan, in the form of a touch pan 50 with a built-in or an associated optical detecting sensor 20. Measurement data, the implementation of aamah optical sensors 20, converted into electrical signals by transducers (not shown)can be passed through the optical waveguides and electrical cables to the electronic evaluation unit and a control (not shown), the control unit excavation associated shield roof support 10 or the Central controller to generate control signals for the control cylinders 7 to the measured signals, resulting in a line cutting the coal plane 3 can be adapted to the boundary surface between the underlying rock and coal. Because the profile of the coal seams in most cases has not changed, the detection of the boundary surface between the underlying rock and coal and maintain line cutting can be performed close enough to the real time by optical detecting sensors 20 located exploded from the front stope approximately the width of the guide device of the machine (guide section 4).

Figure 2 shows in detail the end of the pan 2 of the conveyor on the side of the front stope with attached section 4 of the sending device, the machine having a vertically oriented slot 21 to accommodate the optical detecting sensor 20. In the shown embodiment of the invention section 4 of the sending device of the machine essentially contains case made as a cast part with built-in channels 5, 6 directions chains, made as a single unit monitor part 15, protection of 16 guide device for chain block, protruding into the lower channel 5 circuit for connecting the rear and durable connecting wall 17 with the dam side, which are both welded lug 18 to the intermediate plate 30, and a welded lug 19 to the bottom 31 of the lower branch of the conveyor, are made as one whole. The intermediate plate 30 separates the lower branch 32 section 2 of the conveyor from the upper branch of the conveyor 34, which is designed as the gutter 33. The top opening of the slot 21 is located so that, essentially, is opened at a side profile 35, that is, on the side of the front stope removable gutters 33 containing the upper branch 34 of the conveyor. The detecting sensor 20 can be inserted as a monobloc replacement item from above into the slot 21. For installation/removal of the removable gutter 33 must be completely dismantled or side profile 35, on the side of the front stope should be made in the form of several parts and is equipped with medium detail, which can be connected by bolts to the cover plate 36 and is connected by bolts connections to detail side profile, located motionless, sacral nimi removable gutter 33 or the upper branch of the conveyor 34. With this regard, the optical detecting sensor 20 can be disassembled from the top without problems without the need for disassembly or lifting of the corresponding pan 50 with sensor pipeline. The socket 21 is opened by the opening to the underlying rock on the bottom side 23 of section 4 of the sending machine or device, as shown, on the underside 23 of the support ribs 40 which are welded to the lower zone of the connecting wall 17. Wearing the Shoe 23 of the optical sensor head 24 of the detecting sensor 20 acts through the hole. Wearing the Shoe 23, the head 24 of the sensor equipped in the center of the optical window (sapphire window) 25, which may be logged reflectivity of the underlying rocks, which supports the extraction system through the support ribs 40 and tracking devices 15. In this embodiment, sensor head 24 is spring-loaded by means of spring 26 compression in the direction of the underlying rock to provide support optical window 25 on the underlying rock if, for example, the bottom side 43 of the support rib 40 has a small distance from the underlying rocks, as indicated by the two dash-dotted lines in figure 2. In this embodiment, the head 24 of the sensor and the compression spring 26 is located in a cylindrical Cabinet parts 27 inserted from above the corresponding cylindrical socket 21 and is fixed, for example, on the ledge of the slot 21.

In the embodiment, the indicator in figure 2, the optical signals of the sensor head 24 is transmitted through the optical waveguide 45 optoelektronische Converter (not shown), which might need to be made in the form of a bundle of optical waveguides, laid securely in the intermediate plate 30 between the lower branch 32 and the upper branch of the conveyor 34 or removable drain chute 33. An electronic circuit optoelectrical transducer or sensor can also be made as an integral part of the optical sensor 20 in the socket 21 and a relatively large gap 28 on the socket 21 for transmission only electrical signals between the position detecting sensor 20 and remotely located electronic evaluation circuit or the like, the power Supply for all components required by the optical sensor 20 can be implemented easily by means of connecting cables. Figure 2 shows the position of the sensor head 24 of the optical detecting sensor 20, in which the optical window 25 is to the bottom of the outside bottom surface 43. It is obvious that the optical window 25 ends flush with the lower surface 43, in connection with the possibility of movement provided by the compression spring 26, if the bottom surface 43 of the supporting what about the ribs 40 plane relies on the underlying rock.

Figure 3 and 4 show a second variant implementation of the touch pan 160 with a secure socket 121 with located therein optical sensor 120. The pan 150 contains the pan 102 of the conveyor section 104 of the sending device is attached from the front stope and is made essentially in the form of molded parts, with integral molded tracking device 115 machine, integrally made channels 105, 106 chain and durable connecting wall 117, lying on the goaf side of the channels 105, 106 chain. The upper branch of the conveyor 134, in turn, is made as a removable gutter 133, based on the intermediate plate 130 is welded to the connecting wall 117. The end plate 131 of the lower branches on the side of the front stope, also welded to the connecting wall 117, which partially forms a transverse guide scrapers on the lower branch of the conveyor 132, the end of which, as in the previous embodiment of the invention has a tilted up out of the corner edges, to perform direction cleaning scrapers possible on the lower branch of the conveyor 132. Near the end, i.e. on the side of the front stope, the bottom 131 of the lower branch of the conveyor features a partially cut-out 160, closed by part 161 of the bottom of the lower branch of the conveyor, to ensure that work thejobs the provision and when the upper gutter 133 and item 161 of the bottom of the lower branch of the conveyor is removed, the optical sensor 120, located in the socket 121, passing on the goaf side of the connecting wall 117 configuration, forming a single unit with the monitoring device 115 of the machine and under the bottom 131 of the lower branch of the conveyor. The slot 121 is also open on the bottom, but secure in the direction of movement or the upper direction of the trough 150-sensor tracking device 115 machine and the corresponding expanded section of the connecting wall 117. In turn, the support ribs may be welded to the connecting wall 117, transversely relative to the slot 121, as shown for example with reference ribs 140 figure 4.

In the optical detecting sensor 120 touch the head 124 with an optical window 125 still installed in the carrier 127 sensor, which is designed as a durable wearing the Shoe and can be moved relative to the connecting wall 117 and the bottom 131 of the lower branch of the conveyor. For this purpose, the carrier sensor 127 has, in the transverse direction, vertically oriented guide cutout 170, through which pass the connecting fingers 171, mounted, for example, in the reference edge 140. Several springs 126 compression, relying for this purpose on the lower side of the bottom 131 of the lower branch of the conveyor, predpochtitel is about creating pressure on the top or the back side 129 of the media sensor 127. The media sensor 127, together with sensor head 124 located securely in the carrier 127 sensor are shifted under the action of the spring 126 compressed, if the bottom surface tracking devices 115 machine or V-shaped safety bar 180, attached to it and aimed for the top in the upper direction, you must post with the underlying rock, and is firmly pressed against the underlying rock, and the optical system in the detecting sensor 120 can measure the reflectivity of the underlying rocks or coal and signal measurement to the control unit. Because there is a relatively large gap, in particular in the area of the connecting wall 117 and under the bottom 131 of the lower branch of the conveyor, all of the electronic circuit of the sensor, which includes optoelektronische Converter, can optionally be placed in this slot 121. Thus it is enough to lay the connecting cable along the bottom side of the bottom of the lower branch of the conveyor or again through the intermediate plate 130 to the goaf side and from there, for example, to the electronic control units of the individual shield lining the excavation machine.

Not shown, the means for supplying the pneumatic system or a means of compressed air with a nozzle, may be summed up in each of the variations is those slots in touch pans to clean optical window in the sensor head by blowing with compressed air, if necessary, during the move operation, if the pan sensor for a short time rises from the underlying rocks. Additionally, not shown, that the lifting device may also operate, in particular, through the same means for supplying substances under pressure, while lifting device raises the sensor head or the media sensor, against the direction of force of the compression spring, the result may not result in damage to or deterioration of the optical window even during a move operation from the underlying rocks, lying around him. The lifting tool can even be used for short-term growth media sensor or sensor head during top operation, when the pan sensor is based on the underlying rock, to clear sapphire window or optical window with compressed air in this position.

The invention is not limited to the illustrated implementation options. In particular, for the construction of the guide device of the machine, including the design of the connecting wall, as a result of numerous modifications as known to the expert in the field of underground penetrations for different samples of the guide devices, machines, buildings plane, the geometry of the chain, etc. depending on the length of individual elements of the pan and, as a function of the required information density, each element of a trough or only every nth element of a trough can be made as a pan with a sensor. The spacing between the two conveyor pans out as the pans of sensors may also be different.

1. A device for determining the line cutting system excavation the excavation, in particular the system of the coal plane containing the floating pipeline, composed of individual elements of the pan, each of which has a pan (2) conveyor having upper branch (34) of the conveyor belt and the lower branch (32) of the conveyor belt, and the guide section (4), installed from the front of the stope, as a guiding device for a mining machine, and having at least one optical sensor (20)containing a sensor head (24)placed in the carrier (27) sensor and able to squeeze through at least one clamping means (26) to the boundary surface between the coal and the underlying rock to be detected, thus distributed along the length of the pipeline, many elements of the pan is made as a touch pans (50)with secure socket (21), open to the underlying rock, which is or may be located media (27) of the sensor with the possibility of dismantling together with sensor head (24).

2. The device according to claim 1, in which each element of Rasht is as done as touch the pan or every n-th element of the pan, in particular, approximately one fifth to the fifteenth, preferably approximately one-eighth and the tenth element of a trough conveyor (1) is implemented as a touch pan (50; 150).

3. The device according to claim 1 or 2, in which the carrier (27; 127) sensor is located in the socket (21; 121)is formed near the side profile (35; 135) on the side of the front stope upper branch and the lower branch of the conveyor.

4. The device according to claim 1 or 2, wherein a slot is made in the side wall on the side of the front stope sections of the pipeline or in the connecting wall (17) goaf side of the guide section (4).

5. The device according to claim 1 or 2, wherein a guiding device (4; 104) is designed as a guiding device of a plane with the channels (5, 6; 105, 106) circuit and having a tracking device (15; 115) of the machine, and the slot (21; 121) is located at the goaf side of the channel chain.

6. The device according to claim 1 or 2, in which the slot (21) is a pan conveyor or guide section of the pan from top to bottom, and installation/dismantling of the carrier (27) of the sensor is possible from the upper branch of the conveyor.

7. The device according to claim 6, in which the slot (21) has a cylindrical cross-section, and/or the carrier (27) of the sensor is made in the form of a preferably cylindrical Cabinet parts, able to be inserted into the slot (21) and having located therein clamping means is, when this sensor head (24) mounted for displacement of the clamping means.

8. The device according to claim 6, in which a hole installation/removal for media (27) of the sensor is sealed or closed by means of movable parts of the side profile, designed for the specified side profile of the upper branch (34) a pipeline located on the side of the front stope.

9. The device according to claim 1 or 2, in which the carrier (127) sensor is located in the slot (121) with an open edge on the lower surface of the guide pan or pan (102, 104) of the pipeline, and the media (127) of the sensor can be moved relative to the guide section or sections of the pan conveyor, at least one clamping means(126).

10. The device according to claim 9, in which the connecting wall (117) of the sending device of the machine forms an at least partially profiled end scrapers on the lower branch of the conveyor and contains the point of welding to the bottom branch of the conveyor, and/or socket (121) for detecting sensor (20) is formed under the base (130) the lower branch of the conveyor and on the dam side of the connection wall (117).

11. The device according to claim 10, in which the pan includes a support edge (140)located beneath the base of the lower branch of the conveyor, on which is mounted with the possibility of offset carrier (127) Dutch is CA.

12. The device according to claim 1 or 2, in which the electronic circuit of the sensor for converting the optical signal is located directly in the socket.

13. The device according to claim 1 or 2, in which the electronic circuit of the sensor is on the side wall with the goaf side of the elements of the pan, and optical connection cable (45) is laid between the upper branch (34) and the lower branch (32) of the conveyor belt, preferably in the intermediate bottom (30).

14. The device according to claim 1 or 2, in which the clamping means comprises at least one spring (26; 126).

15. The device according to claim 1 or 2, which contains an optical window, in particular sapphire window (25; 125), United with sensor head (24; 124).

16. The device according to claim 1 or 2, in which the sensor head or the optical window is equipped with a safety strap, preferably V-shaped safety strap, the vertex of which is directed in the direction of movement.

17. The device according to claim 1 or 2, which contains a pneumatic tool, in particular a means for supplying compressed air for cleaning, if necessary, the optical window.

18. The device according to claim 1 or 2, which contains the lifting means with a power drive, opposing the force of the pressure clamping means for lifting, if necessary, the media sensor head or media sensor.

19. Item pan DL the conveyor system excavation the excavation, containing pan (2; 102) of the conveyor with the upper branch (34; 134) of the conveyor belt and the lower branch (32; 132) of the conveyor belt and having a guide section (4; 104), installed from the front of the stope, as a guiding device for a mining machine, in particular for use in the device according to claim 1 or 2, characterized in that it contains a protected slot (21; 121), open to the underlying rock and is designed for placement with the possibility of removing the carrier (27; 127) sensor, optical sensor, capable of Nestle, at least one clamping means (26; 126) to the boundary surface to be detected, to detect the boundary surface between coal and rock.

20. Element of a trough according to claim 19 in which the carrier (27; 127) sensor is located in the socket (21; 121)is formed near the side profile (35; 135) on the side of the front stope upper branch and the lower branch of the conveyor.

21. Element of a trough according to claim 19 or 20, in which the nest is made in the side wall on the side of the front stope sections of the pipeline or in the connecting wall (17) goaf side of the guide section (4).

22. Element of a trough according to claim 19 or 20, in which a guiding device (4; 104) is designed as a guiding device of a plane with the channels (5, 6; 105, 106) circuit and having a tracking device (15; 115) of the machine, and g is esdo (21; 121) is located at the goaf side of the channel chain.

23. Element of a trough according to claim 19 or 20, in which the slot (21) is a pan conveyor or guide section of the pan from top to bottom, and installation/dismantling of the carrier (27) of the sensor is possible from the upper branch of the conveyor.

24. Item pan in item 23, in which the slot (21) has a cylindrical cross-section, and/or the carrier (27) of the sensor is made in the form of a preferably cylindrical Cabinet parts, able to be inserted into the slot (21) and having located therein the clamping means, when this sensor head (24) mounted for displacement of the clamping means.

25. Item pan in item 23, in which a hole installation/removal for media (27) of the sensor is sealed or closed by means of movable parts of the side profile, designed for the specified side profile of the upper branch (34) a pipeline located on the side of the front stope.

26. Element of a trough according to claim 19 or 20, in which the carrier (127) sensor is located in the slot (121) with an open edge on the lower surface of the guide pan or pan (102, 104) of the pipeline, and the media (127) of the sensor can be moved relative to the guide section or sections of the pan conveyor, at least one clamping means (126).

27. Item pan on p, in which digitalna wall (117) of the sending device of the machine forms, at least partially profiled end scrapers on the lower branch of the conveyor and contains the point of welding to the bottom branch of the conveyor, and/or socket (121) for detecting sensor (20) is formed under the base (130) the lower branch of the conveyor and on the dam side of the connection wall (117).

28. Item pan on item 27, in which the pan includes a support edge (140)located beneath the base of the lower branch of the conveyor, on which is mounted with the possibility of offset carrier (127) sensor.

29. Element of a trough according to claim 19 or 20, in which the electronic circuit of the sensor for converting the optical signal is located directly in the socket.

30. Element of a trough according to claim 19 or 20, in which the electronic circuit of the sensor is on the side wall with the goaf side of the elements of the pan, and optical connection cable (45) is laid between the upper branch (34) and the lower branch (32) of the conveyor belt, preferably in the intermediate bottom (30).

31. Element of a trough according to claim 19 or 20, in which the clamping means comprises at least one spring (26; 126).

32. Element of a trough according to claim 19 or 20, which contains an optical window, in particular sapphire window (25; 125), United with sensor head (24; 124).

33. Element of a trough according to claim 19 or 20, in which the sensor head or the optical window is equipped with a safety strap,preferably V-shaped safety strap, the vertex of which is directed in the direction of movement.

34. Element of a trough according to claim 19 or 20, which contains a pneumatic tool, in particular a means for supplying compressed air for cleaning, if necessary, the optical window.

35. Element of a trough according to claim 19 or 20, which contains the lifting means with a power drive, opposing the force of the pressure clamping means for lifting, if necessary, the media sensor head or the media sensor.



 

Same patents:

FIELD: mining.

SUBSTANCE: proposed section of tear-off planer comprises guide element arranged on the side of mined-out space from haulage chute and return travel conveyor chute, upper channel for haulage chain and lower channel for haulage chain, and guide slot, open towards breakage face, for engagement of under-conveyor plate of tear-off planer. Note here that said guide element can carry at least one cover element to stop inspection hole for both haulage chain channels that comprises connecting cantilever for hydraulic cylinder to control conveyor unit inclination and receiving bins for heads of boltless joint between conveyor chutes in rigid joints of adjacent sections of tear-off planer guides. Guide element consists of casting incorporating receiving pans, and/or return travel conveyor chute sections on the side of mined-out space, and/or guide for under-conveyor plate of tear-off planer.

EFFECT: longer life, efficient use.

15 cl, 6 dwg

Connecting device // 2391506

FIELD: mining.

SUBSTANCE: connecting device for drawing knife installations with control system for controlling the horizon of the drawing knife cut, namely of coal drawing knife, has a composite connecting cantilever welded to chute section or the guide section of drawing knife installation. Connecting cantilever has the main part which is made as an integral part of hinged seat section for receiving hinged head of hydraulic cylinder for control of transverse inclination of conveyor and which is equipped with fork-shaped cantilever stop made with an offset as to the height relative to hinged seat. Cantilever stop includes two flanges located parallel to each other and internal sides of which are located at the distance opposite each other and equipped with holes for a bolt for receiving a hinged bolt interacting with the head part of cantilever beam. The main part of connecting cantilever consists of cast part; at that, both flanges on their external sides are equipped with support ribs moulded in block and protruding on sides, and/or holes for bolts diverge conically from inner side to outer side for receiving clamping parts interacting with hinged bolt.

EFFECT: simplifying the design of connecting device; operating reliability, possibility of being used in sliding and detachable drawing knives, reduction of wear of holes for hinged bolt.

11 cl, 5 dwg

FIELD: mining, particularly coal plows to be moved by means of hauling chains.

SUBSTANCE: guiding device section comprises two overlapped guiding channels for chain receiving, upper guiding strip and lower guiding beam, as well as lower sliding guide used for plow orientation. The channels are separated one from another with molded spacing slide. Upper guiding channel is closed with front wall including guiding strip and passing into guiding beam. Formed between guiding beam and sliding guider is slot orifice for plow guider hook or plow blade receiving. Created in front wall are receiving cuts to arrange drag-bars for adjacent plow guiding device sections connection. Front wall with guiding strip, guiding beam, as well as receiving cuts and rear wall including sliding guider, are made of integral mold extending along guiding device section.

EFFECT: decreased assemblage costs, reduced number of molds to be manufactured.

10 cl, 5 dwg

FIELD: mining, particularly mining machine, which is directed along guiding member during mining machine operation.

SUBSTANCE: mining machine comprises guiding plate and guiding fork enclosing guiding plate from above. Guiding member is arranged between guiding fork and guiding plate and is detachably connected to guiding fork and slides along guiding plate. Guiding fork has at least support surface adapted to support guiding member in mounting position. The guiding member is fixed in longitudinal guiding plate direction along with guiding fork by means of stop.

EFFECT: reduced time of guiding member replacement.

15 cl, 8 dwg

FIELD: conveyers comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material.

SUBSTANCE: chute section of coal production rig has load-lifting shaft section and reverse stroke shaft section adapted for scraper chain conveyer guider receiving. Chute base is located between the sections. The chute base has fixing means arranged from embedding side and from face side at chute ends to receive connection member of chute sections, which connects adjacent chute sections with each other to provide tensile strength thereof. The chute also has guiding means to guide production machine, which moves along mining face plane, and deflected guiding sheet, which creates loading platform connected with chute section from mining face plane side and extending from bed to load-lifting shaft section. Degree of lower guiding sheet part folding relatively chute base exceeds that of upper guiding sheet part. The guiding sheet is provided with depressions formed at chute section ends. The depression sizes correspond to that of fixing means and/or connection means, which connect chute sections one to another. Lower part of guiding sheet defines bridge at lower edge. The bridge extends to chute section ends.

EFFECT: elimination of face conveyer lifting.

22 cl, 2 dwg

The invention relates to the mining industry, in particular to a device for guiding the mining machine along the scraper conveyor, and can be used when carrying out work on the extraction of minerals

The invention relates to the mining industry, particularly to guides for mining planes

FIELD: mining.

SUBSTANCE: invention relates to mining, particularly, to mining-and-hauling complexes, and can be used in development of sheet deposits. Mining-and-hauling complex comprises horizontally enclosed chain haulage member with rectangular scrapers secured thereto across conveyor flight to make load-carrying run and idle run. Note here that every scraper is arranged on horizontal link of haulage member round-link chain to allow interaction between cylindrical cutouts on scraper with straight section of bar that makes chain link on its half diameter. Scraper is locked by means of detachable half-coupling on outer chain link to allow the scraper to turn about conveyor axis. Pan line, nearby drive and driven sprockets, has curvilinear transition sections with transition from flat horizontal to flat vertical arrangement directly before drive and driven sprockets. Scraper outer edges, on the side of pan line in vertical plane, are curvilinear to interact with curvilinear surfaces of pan line at transition sections. Scrapers, on the side of pan line, have cutouts. Note here that cutout height from chain horizontal link is taken to exceed half the width of the link. Two-chain haulage member is provided with scrapers arranged on outer side of conveyor lengthwise axis. Note that the struts are oriented perpendicular to scrapers and represent equal-resistance beams arranged in mutually perpendicular planes. Detachable tools are directed outward from conveyor lengthwise axis. Top edge of said tools is located at a height from pan line base bottom plane. Arrangement of tools, except for lower tool, and distance between scrapers equipped with tools are defined from mathematical expressions. Note here that stepped arrangement of scrapers features increase in scraper position height toward the side opposite the haulage member motion direction. Note that all scrapers are furnished with tools and provided with additional vertical identical-height struts to interact with vertical sides of pan line on both load-carrying and idle conveyor runs. Surfaces of additional struts on the side of pan line sides are coated by antifriction material layer.

EFFECT: higher efficiency due to increased width of conveyor pan line.

5 dwg

Mining drawknife // 2401946

FIELD: mining.

SUBSTANCE: mining drawknife, namely coal mining drawknife, includes the main part of the drawknife directed on movable conveyor and on the inclined support surface of which there is swing bolt for rotary support of cutter holder for each direction of the drawknife movement, two cutter holders which are installed by means of pivot bearing with possibility of turning on the appropriate swing bolt and have the lower part by means of which the cutter holder is directed on turning surface formed under support surface on the main body of drawknife and oriented concentrically around rotary axis of the appropriate swing bolt. Pivot bearing of cutter holder is made in the form of receiving element opened along the edge, by means of which the cutter holder in mounting turning position has the possibility of being pulled parallel to support surface to swing bolt.

EFFECT: easy installation and removal of cutter holders, decreasing outages of drawknife installations.

15 cl, 7 dwg

FIELD: mining.

SUBSTANCE: adjustment device for holder of upper cutter for mining drawknife located on the housing with possibility of adjustment as to height of upper cutter holder includes worm gear to interact with the gear rim made on upper cutter holder like gear rack, which together with transmission and inlet shaft is provided with possibility of being fixed on the drawknife housing in the form of a module. At that, transmission consists of planetary gear set which is located between inlet shaft and worm gear. Also the invention refers to mining drawknife with such adjustment device.

EFFECT: reducing the forces applied by the miner or with the drive at adjustment and installation of upper cutter holder.

12 cl, 5 dwg

FIELD: mining.

SUBSTANCE: drawing knife includes the plate of support frame consisting of middle part rigidly attached to the drawing knife body and two external parts connected to it in a movable manner, guide shoes on the end of each part of the support frame plate, which is located on the side of laying; those guide shoes are used for introducing the support frame plate in guide channels for pull chain of the drawing knife. Drawing knife also includes at least one chain shoe which interacts with support frame plate and intended for each direction of the drawing knife movement and for attachment of its pull chain. Both chain shoes are provided on pusher which is inserted with possibility of being replaced or provided with possibility of being inserted on the end of the middle part of support frame plate on the side of laying to the groove. Groove is restricted in both directions of drawing knife movement with one shoe part respectively, which forms and integral component part of the middle part of support frame plate, equipped with guide shoe and has support surface for pusher.

EFFECT: improving attachment of pull chain of the drawing knife or hinged connection on the side of laying between parts of support frame plate, and improving running characteristic of the chain.

16 cl, 9 dwg

FIELD: mining.

SUBSTANCE: group of inventions refers to mining, particularly to ploughing installation and to procedure of coal mining with plough installation and can be implemented at underground development of coal beds. The plough installation for coal mining consists of a coal plough designed to travel by means of a pull chain of the plough. The pull chain can be driven to motion via a chain drive sprocket equipped with a drive from a drive station for the pull chain of the plough; the pull chain can change direction on that guiding sprocket, which is not equipped with a drive from the drive station. The coal plough can operate in a reverse mode. The guiding sprocket is installed in slides, which are moved with a tensioning device in the direction of coal plough movement. The invention also includes the procedure for coal mining with the plough installation.

EFFECT: elimination of sagging and break of pull chain, simplicity of design of drive station, and decreased distance from end stop of plough travel to sprocket of plough chain.

12 cl, 4 dwg

FIELD: mining, particularly coal plows to be moved by means of hauling chains.

SUBSTANCE: guiding device section comprises two overlapped guiding channels for chain receiving, upper guiding strip and lower guiding beam, as well as lower sliding guide used for plow orientation. The channels are separated one from another with molded spacing slide. Upper guiding channel is closed with front wall including guiding strip and passing into guiding beam. Formed between guiding beam and sliding guider is slot orifice for plow guider hook or plow blade receiving. Created in front wall are receiving cuts to arrange drag-bars for adjacent plow guiding device sections connection. Front wall with guiding strip, guiding beam, as well as receiving cuts and rear wall including sliding guider, are made of integral mold extending along guiding device section.

EFFECT: decreased assemblage costs, reduced number of molds to be manufactured.

10 cl, 5 dwg

FIELD: mining, particularly production plants with console control of production machine cutting horizon, particularly for coal deposit mining plough.

SUBSTANCE: connection console comprises hinge bearing connection for hinged head of console cylinder arrangement. The console also has fork-like console connection shifted with respect to hinge bearing connection and adapted to secure head part of console bar by means of hinge pin. Fork-like console connection has two parallel elbows having orifices for hinge pin receiving. Inner sides of elbows are spaced apart and are opposite one to another. The elbows are connected to each other at base. Inner sides of each elbow pass into elbow edge through chamfer.

EFFECT: decreased wear.

9 cl, 2 dwg

FIELD: mining industry, possible use for controlling position of extracting machine, in particular, plough plant or in complexes for underground extraction of mineral resources.

SUBSTANCE: device contains, mutually interconnected: moving hydro-jack connected to section of lining, pusher, which by means of horizontal axis is jointly connected to column of extracting machine, and controlling hydro-jack, cylinder and rod of which are provided with spherical heads, jointly mounted in sockets of, respectively, overhanging support of extractive machine column and pusher. At least inside one of sockets cylindrical recess is made, in which between spherical head and end of cylinder a bushing is positioned, prevented from moving along axis of recess and provided with at least one limiter, positioned with possible contact with surface of spherical head of hydro-jack during its folding. Internal surface of bushing is positioned with a gap around the neck of head, while distance between closer ends of cylinder and bushing is greater than length of mounting surface of bushing in socket. Inside the bushing, on the side adjacent to spherical head, a recess may be made limited with a ring, internal diameter of which is greater than diameter of spherical head, while mounted in recess of bushing are at least two limiters made in form of blocks, internal diameter of which is less than diameter of spherical head, and external diameter matches diameter of recess of bushing, while limiters are mounted with their possible extraction from recess of bushing after its removal from spherical head. On external surface of bushing a groove may be made, and in socket - two through apertures, perpendicular to axis of cylindrical recess of socket, wherein two shafts are located with possible contact with walls of groove in bushing.

EFFECT: lower laboriousness of device manufacture and increased reliability of device operation.

3 cl, 5 dwg, 1 ex

The invention relates to the mining industry and can be used in the front units designed for the extraction of natural resources

The invention relates to mining and can be used for minerals extraction

FIELD: mining industry, possible use for controlling position of extracting machine, in particular, plough plant or in complexes for underground extraction of mineral resources.

SUBSTANCE: device contains, mutually interconnected: moving hydro-jack connected to section of lining, pusher, which by means of horizontal axis is jointly connected to column of extracting machine, and controlling hydro-jack, cylinder and rod of which are provided with spherical heads, jointly mounted in sockets of, respectively, overhanging support of extractive machine column and pusher. At least inside one of sockets cylindrical recess is made, in which between spherical head and end of cylinder a bushing is positioned, prevented from moving along axis of recess and provided with at least one limiter, positioned with possible contact with surface of spherical head of hydro-jack during its folding. Internal surface of bushing is positioned with a gap around the neck of head, while distance between closer ends of cylinder and bushing is greater than length of mounting surface of bushing in socket. Inside the bushing, on the side adjacent to spherical head, a recess may be made limited with a ring, internal diameter of which is greater than diameter of spherical head, while mounted in recess of bushing are at least two limiters made in form of blocks, internal diameter of which is less than diameter of spherical head, and external diameter matches diameter of recess of bushing, while limiters are mounted with their possible extraction from recess of bushing after its removal from spherical head. On external surface of bushing a groove may be made, and in socket - two through apertures, perpendicular to axis of cylindrical recess of socket, wherein two shafts are located with possible contact with walls of groove in bushing.

EFFECT: lower laboriousness of device manufacture and increased reliability of device operation.

3 cl, 5 dwg, 1 ex

FIELD: mining, particularly production plants with console control of production machine cutting horizon, particularly for coal deposit mining plough.

SUBSTANCE: connection console comprises hinge bearing connection for hinged head of console cylinder arrangement. The console also has fork-like console connection shifted with respect to hinge bearing connection and adapted to secure head part of console bar by means of hinge pin. Fork-like console connection has two parallel elbows having orifices for hinge pin receiving. Inner sides of elbows are spaced apart and are opposite one to another. The elbows are connected to each other at base. Inner sides of each elbow pass into elbow edge through chamfer.

EFFECT: decreased wear.

9 cl, 2 dwg

FIELD: mining, particularly coal plows to be moved by means of hauling chains.

SUBSTANCE: guiding device section comprises two overlapped guiding channels for chain receiving, upper guiding strip and lower guiding beam, as well as lower sliding guide used for plow orientation. The channels are separated one from another with molded spacing slide. Upper guiding channel is closed with front wall including guiding strip and passing into guiding beam. Formed between guiding beam and sliding guider is slot orifice for plow guider hook or plow blade receiving. Created in front wall are receiving cuts to arrange drag-bars for adjacent plow guiding device sections connection. Front wall with guiding strip, guiding beam, as well as receiving cuts and rear wall including sliding guider, are made of integral mold extending along guiding device section.

EFFECT: decreased assemblage costs, reduced number of molds to be manufactured.

10 cl, 5 dwg

FIELD: mining.

SUBSTANCE: group of inventions refers to mining, particularly to ploughing installation and to procedure of coal mining with plough installation and can be implemented at underground development of coal beds. The plough installation for coal mining consists of a coal plough designed to travel by means of a pull chain of the plough. The pull chain can be driven to motion via a chain drive sprocket equipped with a drive from a drive station for the pull chain of the plough; the pull chain can change direction on that guiding sprocket, which is not equipped with a drive from the drive station. The coal plough can operate in a reverse mode. The guiding sprocket is installed in slides, which are moved with a tensioning device in the direction of coal plough movement. The invention also includes the procedure for coal mining with the plough installation.

EFFECT: elimination of sagging and break of pull chain, simplicity of design of drive station, and decreased distance from end stop of plough travel to sprocket of plough chain.

12 cl, 4 dwg

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