A triangular coal cleaning device for coal mining working face in underground coal mines

Abstract

The present invention relates to the technical field of coal mining triangular coal, and in particular to a triangular coal cleaning device for coal mining working faces in underground coal mines; the triangular coal cleaning device for coal mining working faces in underground coal mines is installed at the end of the coal mining working faces in underground coal mines and uses the monorail hanging beam on the top plate of the tunnel as a runway; the triangular coal cleaning device for coal mining working faces in underground coal mines includes a displacement support assembly, a lifting and positioning mechanism is installed below the displacement support assembly, the top of the lifting and positioning mechanism is fixed on the displacement support assembly above it, and a coal pushing structure is installed at the lower end of the lifting and positioning mechanism. The device is installed at the end of the coal mining working face in underground coal mines and uses the monorail hanging beam on the top plate of the tunnel as a runway, which can effectively realize the rapid coal pushing and transfer of coal blocks in the triangular coal area with a simple structure, and the overall operation efficiency is relatively high, and the operation is flexible and convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mining triangles, and in particular to a coal cleaning machine that can be installed at the end of a coal mining face in an underground coal mine, and in particular to a coal cleaning device for coal mining faces in underground coal mines. Background Art

[0002] There are generally two main types of triangular coal in coal mines. One is that due to the oblique intersection of faults and tunnels, a triangular area is formed, which is on the plane; the other is that since the working face tunnel is not constructed along the bottom plate, the part close to the tunnel cannot be mined during the mining process, which is on the section.

[0003] Due to the special location of the triangular coal in the above-mentioned coal mines, the end triangular coal is currently generally cleaned manually during mining, which leads to generally low efficiency in coal block cleaning. In addition, manual cleaning has problems such as great difficulty in cleaning and potential safety hazards during the cleaning process.

[0004] At present, the prior art generally adopts a bucket-type triangular coal cleaning device disclosed in the patent document with patent application number CN201911387930.6, whose main structure includes a connecting plate, the connecting plate is fixedly connected to the slewing bearing, the slewing bearing is fixedly connected to the base, one end of the base is hinged to the telescopic sleeve, a telescopic arm is sleeved in the telescopic sleeve, the other end of the base is hinged to the lifting cylinder, the other end of the lifting cylinder is hinged to the telescopic sleeve, the end of the telescopic arm is fixedly connected to the fixed plate symmetrically arranged up and down, one end of the fixed plate is hinged to the swing cylinder, The other end of the fixed plate is hinged to one side of the main arm, the other end of the swing cylinder is hinged to the end of the main arm close to the fixed plate, the top of the main arm is hinged to the main arm cylinder close to the fixed plate, the other end of the main arm cylinder is hinged to one end of the top of the boom, the end of the main arm away from the fixed plate is hinged to one end of the bottom of the boom, the other end of the boom is hinged to the bucket, the top of the boom is hinged to the excavation cylinder, the other end of the excavation cylinder is hinged to the arc plate and to the connecting rod at the same time, the other end of the connecting rod is hinged to the bucket, and the other end of the arc plate is hinged to the side of the boom close to the bucket.

[0005] It can be seen from the structure and working principle of the above-mentioned patent that the method adopted for processing triangular coal is to use a bucket to excavate and collect coal, but the oscillation and working range of this operation are relatively large. When the coal mine tunnel is narrow or the advancement space is limited, the structure in the above-mentioned patent cannot effectively achieve the purpose of rapid cleaning of triangular coal, and its overall volume is large and the flexibility of circumferential movement is low.

[0006] To this end, the present invention designs a triangular coal cleaning machine that can be installed at the end of the coal mining face in an underground coal mine, so as to better realize the rapid cleaning of the triangular coal at the end, effectively solving the problem of difficulty and low efficiency in manual cleaning of the triangular coal at the end, getting rid of the previous manual operation and changing to mechanized operation, ensuring efficiency while improving the safety of the operation, so as to better solve the problems existing in the prior art. Summary of the invention

[0007] The present invention is to solve one of the above technical problems. This patent is mainly to solve the problem of difficulty and low efficiency in manual cleaning of end triangular coal, get rid of the previous manual operation, change to mechanized operation, ensure efficiency and improve the safety of operation; the technical scheme adopted is: a triangular coal cleaning device for an underground coal mining face, the triangular coal cleaning device for an underground coal mining face is installed at the end of the underground coal mining face and uses the monorail hanging beam on the top plate of the roadway as a runway;

[0008] The triangular coal cleaning device for the coal mining face in an underground coal mine includes a displacement support assembly, a lifting and positioning mechanism is installed below the displacement support assembly, the top of the lifting and positioning mechanism is fixed on the displacement support assembly above it, and a coal pushing structure is installed at the lower end of the lifting and positioning mechanism, and the coal pushing structure is used to push the coal blocks in the triangular coal area at the corresponding position to the working end of the scraper conveyor.

[0009] In any of the above schemes, it is preferred that the displacement support assembly includes two I-beams arranged parallel to each other and spaced apart, a monorail hanging wheel structure is fixedly installed on the top of the middle section of the two I-beams, the hanging wheel parts of the monorail hanging wheel structure are cooperatively installed at the corresponding positions of the monorail hanging beams, the bottom of the wheel frame of the monorail hanging wheel structure is fixed to the top of the corresponding I-beam below, and a brake for braking and locking the current monorail hanging wheel structure is installed on the I-beam on one side of the monorail hanging wheel structure on the rear side; a stepping and pushing assembly is installed between the two I-beams, and the stepping and pushing assembly is used as a power for moving the two monorail hanging wheel structures along the monorail hanging beam.

[0010] In any of the above schemes, it is preferred that the triangular coal cleaning device for the coal mining face of an underground coal mine is displaced along the extension direction of the monorail hanging beam by moving forward in steps.

[0011] In any of the above schemes, it is preferred that the step-pushing assembly includes a horizontally arranged traction hydraulic cylinder, and both ends of the traction hydraulic cylinder are movably hinged on the middle side walls of the I-beam at corresponding positions; a supporting hydraulic cylinder is installed on the I-beam at the rear end, and both ends of the supporting hydraulic cylinder are respectively hinged on the I-beam at the rear end and the rear end of the lifting and adjusting mechanism.

[0012] In any of the above solutions, preferably, the front end of the supporting hydraulic cylinder is arranged to be tilted downward.

[0013] In any of the above schemes, it is preferred that the lifting and positioning mechanism includes a structural main board arranged below the I-beam at the front end, the rear end of the structural main board is hinged with the piston rod of the supporting hydraulic cylinder, and a vertically arranged fixed hydraulic cylinder is installed on the I-beam at the front end at intervals along its length direction, and the two fixed hydraulic cylinders are for synchronous and unidirectional lifting and lowering movements, and a sliding plug plate is provided at the lower end of the structural main board, and the sliding plug plate is slidably inserted in the guide groove tracks on both sides of the structural main board; a telescopic control component is installed on the front side wall of the structural main board above the sliding plug plate, and the telescopic control component is used to control the up and down sliding of the sliding plug plate, and the coal pushing structure is installed at the front end of the sliding plug plate.

[0014] In any of the above schemes, it is preferred that the telescopic control assembly includes two vertically and spaced-apart plug-in plate hydraulic cylinders, the upper ends of the cylinder bodies of the two plug-in plate hydraulic cylinders are movably hinged on the structural main board at corresponding positions, and the lower ends of the piston rods of the two plug-in plate hydraulic cylinders are movably hinged on the sliding plug-in plate at corresponding positions.

[0015] In any of the above schemes, it is preferred that the coal pushing structure includes a coal pushing plate which is movably hinged to one side of the sliding insert plate through a hinge, and the coal pushing plate pushes the coal blocks in the triangular coal area to the corresponding working end of the scraper conveyor by swinging, and a swinging pushing structure is installed between the coal pushing plate and the sliding insert plate, and the swinging pushing structure is used to control the rotation and swinging angle of the coal pushing plate around the hinge part.

[0016] In any of the above schemes, it is preferred that the swinging pushing structure includes coal pushing hydraulic cylinders spaced apart from top to bottom, the two coal pushing hydraulic cylinders are in a horizontal state, the rear ends of the two coal pushing hydraulic cylinders are movably hinged on the front end surface of the sliding insert plate, and the piston rod portions at the front ends of the two coal pushing hydraulic cylinders are movably hinged on the coal pushing plate; the two coal pushing hydraulic cylinders and the insert plate hydraulic cylinder are located on different planes and there is no motion interference.

[0017] In any of the above schemes, it is preferred that the two I-beams and the monorail hanging beam are arranged perpendicular to each other.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This device is installed at the end of the coal mining face in an underground coal mine, and uses the monorail hanging beam on the tunnel roof as a runway. It can effectively realize the rapid coal pushing and transfer of coal blocks in the triangular coal area with a simple structure. The overall working efficiency is relatively high, and the operation is flexible and convenient.

[0020] 2. This device uses its own step-by-step pushing assembly to rely on its own structure to approach the triangular coal area along the monorail hanging beam, so as to adjust the work position during the coal pushing process, effectively ensure the accuracy of coal pushing and the control of the coal pushing amount. When the whole machine moves, it realizes step-by-step movement by pushing first, then positioning, and then pulling back, and the displacement flexibility is high.

[0021] 3. By controlling the swing angle of the swing pushing structure on the device, the amount of coal pushed and the angle of coal pushed can be controlled, and the efficiency and effect of coal pushing can be effectively controlled according to demand. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, the elements or components are not necessarily drawn according to the actual scale.

[0023] Figure 1 It is a schematic diagram of the structure of the present invention.

[0024] In the figure, among them, 1. brake; 2. traction hydraulic cylinder; 3. support hydraulic cylinder; 4. monorail hanging wheel; 5. I-beam; 6. fixed hydraulic cylinder; 7. monorail hanging beam; 8. structural main board; 9. plug-in plate hydraulic cylinder; 10. sliding plug-in plate; 11. coal pushing plate; 12. coal pushing hydraulic cylinder; 13. guide groove track. DETAILED DESCRIPTION

[0025] The following is a detailed description of the embodiments of the technical solution of the present invention in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present invention. Figure 1 as shown in .

[0026] Embodiment 1:

[0027] A triangular coal cleaning device for an underground coal mining face, wherein the triangular coal cleaning device for an underground coal mining face is installed at the end of the underground coal mining face and uses a monorail hanging beam 7 on the top plate of the tunnel as a runway;

[0028] The triangular coal cleaning device for the coal mining face in an underground coal mine includes a displacement support assembly, a lifting and positioning mechanism is installed below the displacement support assembly, the top of the lifting and positioning mechanism is fixed on the displacement support assembly above it, and a coal pushing structure is installed at the lower end of the lifting and positioning mechanism, and the coal pushing structure is used to push the coal blocks in the triangular coal area at the corresponding position to the working end of the scraper conveyor.

[0029] The triangular coal cleaning device for the coal mining face of the underground coal mine adopts a shifting support component to achieve forward and backward shifting using the monorail hanging beam 7 as a runway during operation, and braking is achieved by controlling the brake 1 after the shift; when coal pushing and mining work is required, the lifting and adjusting mechanism is used to control the lifting and lowering of the coal pushing structure, and after the coal pushing structure is controlled to be shifted into place, the swing angle of the coal pushing plate 11 on the coal pushing structure needs to be controlled according to the needs of coal mining and pushing, thereby achieving coal pushing at different angles and effectively controlling the amount of coal pushed.

[0030] In any of the above schemes, it is preferred that the displacement support assembly includes two I-beams 5 arranged parallel to each other and spaced apart, and a monorail hanging wheel 4 structure is fixedly installed on the top of the middle section of the two I-beams 5 respectively, and the hanging wheel part of the monorail hanging wheel 4 structure is cooperatively installed at the corresponding position of the monorail hanging beam 7, and the bottom of the wheel frame of the monorail hanging wheel 4 structure is fixed to the top of the corresponding I-beam 5 below, and a brake 1 for braking and locking the current monorail hanging wheel 4 structure is installed on the I-beam 5 on one side of the monorail hanging wheel 4 structure on the rear side; a stepping pushing assembly is installed between the two I-beams 5, and the stepping pushing assembly is used as the power for the two monorail hanging wheel 4 structures to move along the monorail hanging beam 7.

[0031] Two I-beams 5 serve as the main supporting structure of the device, and the monorail hanging wheel 4 structure is used to realize the hanging processing. A brake 1 of a traditional structure is installed on the monorail hanging wheel 4 structure at the rear end. The brake 1 can be used to lock and unlock the monorail hanging wheel 4 structure. When locked, the entire device is in a state where it cannot move along the monorail hanging beam 7, and when unlocked, it is in a free state.

[0032] In any of the above schemes, it is preferred that the step-pushing assembly includes a horizontally arranged traction hydraulic cylinder 2, and the two ends of the traction hydraulic cylinder 2 are respectively movably hinged on the middle side walls of the I-beam 5 at corresponding positions; a supporting hydraulic cylinder 3 is installed on the I-beam 5 at the rear end, and the two ends of the supporting hydraulic cylinder 3 are respectively hinged on the I-beam 5 at the rear end and the rear end of the lifting and adjusting mechanism.

[0033] The step-and-push assembly is mainly used as a power component here. When it is necessary to push forward, the brake 1 on the monorail hanging wheel 4 structure on the rear side can be directly used to brake the rear end, and then the traction hydraulic cylinder 2 is controlled, and the piston rod of the supporting hydraulic cylinder 3 is extended forward to drive the coal pushing structure connected to the front end of the device to move forward.

[0034] In any of the above schemes, it is preferred that the lifting and positioning mechanism includes a structural main board 8 arranged below the I-beam 5 at the front end, the rear end of the structural main board 8 is hinged with the piston rod of the supporting hydraulic cylinder 3, and a vertically arranged fixed hydraulic cylinder 6 is installed on the I-beam 5 at the front end along its length direction at intervals, and the two fixed hydraulic cylinders 6 are synchronously lifted and lowered in the same direction, and a sliding plug plate 10 is arranged at the lower end of the structural main board 8, and the sliding plug plate 10 is slidably inserted in the guide groove tracks on both sides of the structural main board 8; a telescopic control component is installed on the front side wall of the structural main board 8 above the sliding plug plate 10, and the telescopic control component is used to control the up and down sliding of the sliding plug plate 10, and the coal pushing structure is installed at the front end of the sliding plug plate 10.

[0035] The sliding insert plate 10 on the main structural board 8 can be raised and lowered under the action of the telescopic control assembly, so as to control the height when pushing coal and ensure the adjustment of the lowest position of pushing coal.

[0036] In any of the above schemes, it is preferred that the telescopic control assembly includes two vertically and spaced-apart plug-in plate hydraulic cylinders 9, the upper ends of the cylinder bodies of the two plug-in plate hydraulic cylinders 9 are movably hinged on the structural main board 8 at corresponding positions, and the lower ends of the piston rods of the two plug-in plate hydraulic cylinders 9 are movably hinged on the sliding plug-in plate 10 at corresponding positions.

[0037] The two plug-in plate hydraulic cylinders 9 control the longitudinal extension and retraction of the sliding plug-in plate 10 therebelow by synchronous extension and retraction, thereby achieving the purpose of effectively ensuring extension and positioning.

[0038] In any of the above schemes, it is preferred that the coal pushing structure includes a coal pushing plate 11 which is movably hinged to one side of the sliding plate 10 through a hinge, and the coal pushing plate 11 pushes the coal blocks in the triangular coal area to the corresponding working end of the scraper conveyor by swinging. A swinging pushing structure is installed between the coal pushing plate 11 and the sliding plate 10, and the swinging pushing structure is used to control the rotation and swinging angle of the coal pushing plate 11 around the hinge.

[0039] The coal pushing plate 11 can be swung about a fixed axis by means of hinges, so as to achieve the purpose of pushing coal; at the same time, the power for pushing coal is provided by the swinging pushing structure.

[0040] Embodiment 2:

[0041] A triangular coal cleaning device for an underground coal mining face, wherein the triangular coal cleaning device for an underground coal mining face is installed at the end of the underground coal mining face and uses a monorail hanging beam 7 on the top plate of the tunnel as a runway;

[0042] The triangular coal cleaning device for the coal mining face in an underground coal mine includes a displacement support assembly, a lifting and positioning mechanism is installed below the displacement support assembly, the top of the lifting and positioning mechanism is fixed on the displacement support assembly above it, and a coal pushing structure is installed at the lower end of the lifting and positioning mechanism, and the coal pushing structure is used to push the coal blocks in the triangular coal area at the corresponding position to the working end of the scraper conveyor.

[0043] The triangular coal cleaning device for the coal mining face of the underground coal mine adopts a shifting support component to achieve forward and backward shifting using the monorail hanging beam 7 as a runway during operation, and braking is achieved by controlling the brake 1 after the shift; when coal pushing and mining work is required, the lifting and adjusting mechanism is used to control the lifting and lowering of the coal pushing structure, and after the coal pushing structure is controlled to be shifted into place, the swing angle of the coal pushing plate 11 on the coal pushing structure needs to be controlled according to the needs of coal mining and pushing, thereby achieving coal pushing at different angles and effectively controlling the amount of coal pushed.

[0044] In any of the above schemes, it is preferred that the displacement support assembly includes two I-beams 5 arranged parallel to each other and spaced apart, and a monorail hanging wheel 4 structure is fixedly installed on the top of the middle section of the two I-beams 5 respectively, and the hanging wheel part of the monorail hanging wheel 4 structure is cooperatively installed at the corresponding position of the monorail hanging beam 7, and the bottom of the wheel frame of the monorail hanging wheel 4 structure is fixed to the top of the corresponding I-beam 5 below, and a brake 1 for braking and locking the current monorail hanging wheel 4 structure is installed on the I-beam 5 on one side of the monorail hanging wheel 4 structure on the rear side; a stepping pushing assembly is installed between the two I-beams 5, and the stepping pushing assembly is used as the power for the two monorail hanging wheel 4 structures to move along the monorail hanging beam 7.

[0045] Two I-beams 5 serve as the main supporting structure of the device, and the monorail hanging wheel 4 structure is used to realize the hanging processing. A brake 1 of a traditional structure is installed on the monorail hanging wheel 4 structure at the rear end. The brake 1 can be used to lock and unlock the monorail hanging wheel 4 structure. When locked, the entire device is in a state where it cannot move along the monorail hanging beam 7, and when unlocked, it is in a free state.

[0046] In any of the above schemes, it is preferred that the triangular coal cleaning device for the coal mining face of an underground coal mine is displaced along the extension direction of the monorail hanging beam 7 by moving forward in steps.

[0047] By utilizing the telescopic operation of the step-and-pull assembly in conjunction with the brake 1 , the entire device can be shifted forward and backward and locked after the shift.

[0048] In any of the above schemes, it is preferred that the step-pushing assembly includes a horizontally arranged traction hydraulic cylinder 2, and the two ends of the traction hydraulic cylinder 2 are respectively movably hinged on the middle side walls of the I-beam 5 at corresponding positions; a supporting hydraulic cylinder 3 is installed on the I-beam 5 at the rear end, and the two ends of the supporting hydraulic cylinder 3 are respectively hinged on the I-beam 5 at the rear end and the rear end of the lifting and adjusting mechanism.

[0049] The step-and-push assembly is mainly used as a power component here. When it is necessary to push forward, the brake 1 on the monorail hanging wheel 4 structure on the rear side can be directly used to brake the rear end, and then the traction hydraulic cylinder 2 is controlled, and the piston rod of the supporting hydraulic cylinder 3 is extended forward to drive the coal pushing structure connected to the front end of the device to move forward.

[0050] In any of the above schemes, it is preferred that the front end of the supporting hydraulic cylinder 3 is tilted downward, so that the supporting hydraulic cylinder 3 can play a supporting role and provide supporting force for the structural main board 8.

[0051] In any of the above schemes, it is preferred that the lifting and positioning mechanism includes a structural main board 8 arranged below the I-beam 5 at the front end, the rear end of the structural main board 8 is hinged with the piston rod of the supporting hydraulic cylinder 3, and a vertically arranged fixed hydraulic cylinder 6 is installed on the I-beam 5 at the front end along its length direction at intervals, and the two fixed hydraulic cylinders 6 are synchronously lifted and lowered in the same direction, and a sliding plug plate 10 is arranged at the lower end of the structural main board 8, and the sliding plug plate 10 is slidably inserted in the guide groove tracks 13 on both sides of the structural main board 8; a telescopic control component is installed on the front side wall of the structural main board 8 above the sliding plug plate 10, and the telescopic control component is used to control the up and down sliding of the sliding plug plate 10, and the coal pushing structure is installed at the front end of the sliding plug plate 10.

[0052] The sliding insert plate 10 on the main structural board 8 can be raised and lowered under the action of the telescopic control assembly, so as to control the height when pushing coal and ensure the adjustment of the lowest position of pushing coal.

[0053] In any of the above schemes, it is preferred that the telescopic control assembly includes two vertically and spaced-apart plug-in plate hydraulic cylinders 9, the upper ends of the cylinder bodies of the two plug-in plate hydraulic cylinders 9 are movably hinged on the structural main board 8 at corresponding positions, and the lower ends of the piston rods of the two plug-in plate hydraulic cylinders 9 are movably hinged on the sliding plug-in plate 10 at corresponding positions.

[0054] The two plug-in plate hydraulic cylinders 9 control the longitudinal extension and retraction of the sliding plug-in plate 10 therebelow by synchronous extension and retraction, thereby achieving the purpose of effectively ensuring extension and positioning.

[0055] In any of the above schemes, it is preferred that the coal pushing structure includes a coal pushing plate 11 which is movably hinged to one side of the sliding plate 10 through a hinge, and the coal pushing plate 11 pushes the coal blocks in the triangular coal area to the corresponding working end of the scraper conveyor by swinging. A swinging pushing structure is installed between the coal pushing plate 11 and the sliding plate 10, and the swinging pushing structure is used to control the rotation and swinging angle of the coal pushing plate 11 around the hinge.

[0056] The coal pushing plate 11 can be swung about a fixed axis by means of hinges, so as to achieve the purpose of pushing coal; at the same time, the power for pushing coal is provided by the swinging pushing structure.

[0057] In any of the above schemes, it is preferred that the swinging pushing structure includes coal pushing hydraulic cylinders 12 spaced apart from top to bottom, the two coal pushing hydraulic cylinders 12 are in a horizontal state, the rear ends of the two coal pushing hydraulic cylinders 12 are movably hinged on the front end surface of the sliding insert plate 10, and the piston rod portions at the front ends of the two coal pushing hydraulic cylinders 12 are movably hinged on the coal pushing plate 11; the two coal pushing hydraulic cylinders 12 and the insert plate hydraulic cylinder 9 are located on different planes and there is no motion interference.

[0058] The swinging material pushing structure controls the extension range of the coal pushing hydraulic cylinder 12 by its own extension and contraction, and then controls the inclination angle of the coal pushing plate 11, and finally achieves the purpose of coal pushing swing.

[0059] In any of the above schemes, it is preferred that the two I-beams 5 and the monorail suspension beam 7 are arranged perpendicular to each other.

[0060] In any of the above schemes, it is preferred that the traction hydraulic cylinder 2, the supporting hydraulic cylinder 3, the flapper hydraulic cylinder 9 and the coal pushing hydraulic cylinder 12 are all fixed by means of bolt hinges.

[0061] In any of the above schemes, it is preferred that the brake 1 is of prior art and is mounted on the monorail hanging wheel 4 by a spring-type mechanical lock.

[0062] Working principle:

[0063] The structural main board 8 cooperates with the monorail hanging beam 7 in the slot of the monorail hanging wheel 4 through the monorail hanging wheel 4 (there are two groups of fixed hydraulic cylinders 6 above the monorail hanging wheel 4 to fix the device below), and the monorail hanging wheel 4 is used in conjunction with the brake 1 to achieve unlocking and braking of the device; the sliding plug plate 10 is connected to the structural main board 8 through the plug plate hydraulic cylinder 9 and the guide groove to achieve the up and down movement of the sliding plug plate 10; the sliding plug plate 10 is connected to the coal pushing plate 11 through the loose leaf and the coal pushing hydraulic cylinder 12 to achieve the opening and closing of the coal pushing plate 11.

[0064] The device uses high-pressure emulsion on the working surface to control the activities of each cylinder, thereby realizing the movement, braking and operation of the device.

[0065] The specific steps are as follows:

[0066] (1) Movement and braking:

[0067] Before operation, brake 1 is tightened to fix the entire device.

[0068] After the operation is completed, release the brake 1 → extend the traction cylinder and the supporting hydraulic cylinder 3 → brake the brake 1 → retract the fixed hydraulic cylinder on the monorail hanging wheel 4 → retract the traction cylinder → adjust the supporting hydraulic cylinder 3 → tighten the fixed hydraulic cylinder to realize the forward movement and fixation of the device.

[0069] (2) Homework:

[0070] The handle of the plunger hydraulic cylinder 9 is operated to extend the sliding plunger 10 from the structural main plate 8 and connect it with the coal mine floor through the plunger hydraulic cylinder 9. The handle of the coal pushing hydraulic cylinder 12 is operated to rotate and push out the coal pushing plate 11 through the coal pushing hydraulic cylinder 12 to push the triangular coal into the scraper conveyor.

[0071] After the operation is completed, return the device to its original position in reverse order.

[0072] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention. For those skilled in the art, any replacement, improvement or change made to the implementation mode of the present invention falls within the protection scope of the present invention.

[0073] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A triangular coal cleaning device for coal mining working face in underground coal mines, characterized in that: The triangular coal cleaning device for the coal mining face of an underground coal mine is installed at the end of the coal mining face of an underground coal mine and uses the monorail hanging beam on the top plate of the tunnel as a runway; The triangular coal cleaning device for the coal mining face of an underground coal mine comprises a displacement support assembly, a lifting and positioning mechanism is installed below the displacement support assembly, the top of the lifting and positioning mechanism is fixed on the displacement support assembly above it, and a coal pushing structure is installed at the lower end of the lifting and positioning mechanism, and the coal pushing structure is used to push the coal blocks in the triangular coal area at the corresponding position to the working end of the scraper conveyor; The displacement support assembly includes two I-beams arranged parallel to each other and spaced apart, a monorail hanging wheel structure is fixedly installed on the top of the middle section of the two I-beams respectively, the hanging wheel parts of the monorail hanging wheel structure are cooperatively installed at the corresponding positions of the monorail hanging beams, the bottom of the wheel frame of the monorail hanging wheel structure is fixed to the top of the corresponding I-beam below, and a brake for braking and locking the current monorail hanging wheel structure is installed on the I-beam on one side of the rear monorail hanging wheel structure; a stepping and pushing assembly is installed between the two I-beams, and the stepping and pushing assembly is used as the power for the two monorail hanging wheel structures to move along the monorail hanging beam; The step-and-pull assembly includes a horizontally arranged traction hydraulic cylinder, the two ends of which are respectively movably hinged on the middle section side wall of the I-beam at the corresponding position; a supporting hydraulic cylinder is installed on the rear end of the I-beam, the two ends of which are respectively hinged on the rear end of the I-beam and the rear end of the lifting and positioning mechanism; The lifting and positioning mechanism includes a structural main board arranged below the I-beam at the front end, the rear end of the structural main board is hinged with the piston rod of the supporting hydraulic cylinder, a vertically arranged fixed hydraulic cylinder is installed on the I-beam at the front end along its length direction at intervals, the two fixed hydraulic cylinders are synchronously lifted and lowered in the same direction, a sliding plug plate is arranged at the lower end of the structural main board, the sliding plug plate is slidably inserted in the guide groove tracks on both sides of the structural main board; a telescopic control component is installed on the front side wall of the structural main board above the sliding plug plate, the telescopic control component is used to control the up and down sliding of the sliding plug plate, and the coal pushing structure is installed at the front end of the sliding plug plate; The coal pushing structure includes a coal pushing plate which is movably hinged to one side of the sliding plug plate through a hinge. The coal pushing plate pushes the coal blocks in the triangular coal area to the corresponding working end of the scraper conveyor by swinging. A swinging pushing structure is installed between the coal pushing plate and the sliding plug plate. The swinging pushing structure is used to control the rotation and swinging angle of the coal pushing plate around the hinge.

2. The device for cleaning triangular coal at the coal mining face of an underground coal mine according to claim 1, characterized in that: The triangular coal cleaning device for the coal mining working face of an underground coal mine realizes displacement along the extension direction of the monorail hanging beam by moving forward in steps.

3. The device for cleaning triangular coal at the coal mining face of an underground coal mine according to claim 2, characterized in that: The front end of the supporting hydraulic cylinder is tilted downward.

4. The device for cleaning triangular coal at the coal mining face of an underground coal mine according to claim 3 is characterized by: The telescopic control assembly includes two vertical and spaced-apart plug-in plate hydraulic cylinders, the upper ends of the cylinder bodies of the two plug-in plate hydraulic cylinders are movably hinged on the structural main board at corresponding positions, and the lower ends of the piston rods of the two plug-in plate hydraulic cylinders are movably hinged on the sliding plug-in plate at corresponding positions.

5. The device for cleaning triangular coal at the coal mining face of an underground coal mine according to claim 4, characterized in that: The swinging material pushing structure includes coal pushing hydraulic cylinders arranged at intervals from top to bottom, the two coal pushing hydraulic cylinders are in a horizontal state, the rear ends of the two coal pushing hydraulic cylinders are movably hinged on the front end surface of the sliding insert plate, and the piston rods at the front ends of the two coal pushing hydraulic cylinders are movably hinged on the coal pushing plate; the two coal pushing hydraulic cylinders and the insert plate hydraulic cylinder are located on different planes and there is no motion interference.

6. The device for cleaning triangular coal at the coal mining face of an underground coal mine according to claim 5, characterized in that: The two I-beams and the monorail hanging beam are arranged perpendicular to each other.

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