Underground coal mine filling mining supporting device

Abstract

The invention provides a coal mine underground filling mining supporting device, and belongs to the technical field of coal mining, the coal mine underground filling mining supporting device comprises a side edge supporting assembly and a top supporting assembly, the side edge supporting assembly is composed of a supporting frame, the bottom and the top of a reinforcing plate are respectively provided with an adjusting mechanism and a butt joint mechanism, and the top supporting assembly is composed of a supporting beam. The two ends of the supporting beam are movably connected with the side edge supporting assemblies, a detachable supporting mechanism is installed on the top of the supporting beam, and a guiding assembly, a driving assembly and a locking assembly are fixedly installed in the supporting beam. Supporting protection under a coal mine is achieved through the multi-section type supporting device, the stable supporting strength is ensured through the side supports and the top supports, stable folding can be conveniently achieved during transferring, disassembling and assembling, stable supporting of all positions is achieved during unfolding, stable folding in the later period can be conveniently achieved through the arrangement of the guide assemblies, and the supporting effect is good. And in addition, folding of the supporting device is achieved through the driving assembly, and the construction efficiency of the supporting device is improved.

Description

Technical Field

[0001] The invention relates to an underground filling mining support device for a coal mine, belonging to the technical field of coal mining. Background Art

[0002] Backfill mining in underground coal mines is a green mining technology that controls surface subsidence, reduces environmental pollution, and improves resource recovery rate by filling materials (such as gangue, fly ash, cementing materials, etc.) in the goaf. Backfill mining in underground coal mines is a green mining technology that controls surface subsidence, reduces environmental pollution, and improves resource recovery rate by filling materials (such as gangue, fly ash, cementing materials, etc.) in the goaf. After coal mining, the backfill material is injected into the goaf to support the overlying rock layer and prevent surface subsidence. Through backfill technology, coal resources that are difficult to recover by traditional methods can be mined, such as "three-under" compressed coal (under buildings, under railways, and under water bodies), reducing gangue emissions and surface damage, and reducing the impact on the ecological environment.

[0003] Backfill mining in underground coal mines is an efficient and environmentally friendly coal mining technology that controls surface subsidence, improves resource recovery rate, and reduces environmental pollution through backfill materials. When mining underground in coal mines, support devices are also needed to provide temporary support to ensure the smooth progress of backfill mining construction. Due to the limited transportation space of support devices in underground mine caves, traditional hydraulic support devices are not easy to be transported smoothly underground, which can easily lead to collisions of support devices and cause inconvenience in construction, increase the difficulty of transferring and disassembling the support devices, and affect the construction efficiency of the support devices. Summary of the invention

[0004] The invention provides a coal mine underground filling mining support device in order to solve the technical problem that the support device is difficult to transfer and disassemble during underground construction.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] The present invention provides a coal mine underground filling mining support device, the coal mine underground filling mining support device comprising:

[0007] A side support assembly, the side support assembly is composed of a support frame, two reinforcement plates are fixedly installed inside the support frame, the bottom and top of the reinforcement plate are respectively provided with an adjustment mechanism and a docking mechanism, and the adjustment mechanism and the docking mechanism are fixedly installed in the side support assembly;

[0008] A top support assembly, wherein the top support assembly is composed of a support beam, both ends of the support beam are movably connected to the side support assemblies, a detachable support mechanism is installed on the top of the support beam, and a guide assembly, a drive assembly and a locking assembly are fixedly installed inside the support beam, respectively, the locking assembly is arranged in the middle of the support beam, the guide assembly and the drive assembly are located on both sides of the locking assembly, and the locking assembly and the drive assembly are in contact with each other.

[0009] In the present technical solution, the cross-section of the support frame is a U-shaped structure and fits against the side wall of the mine. Reinforcement plates are provided at both ends of the support frame. The reinforcement plate located at the top is rotatably connected to two limit structures. The two limit structures are symmetrically distributed on both sides of the docking mechanism. A long hole is provided on the side wall of the support frame corresponding to the docking mechanism, and the length of the long hole is greater than the length of the long hole provided on the top of the support frame on the other side of the support device. A protective plate is fixedly installed on the side wall of the support frame, and the protective plate is correspondingly arranged on one side of the adjustment mechanism.

[0010] In the present technical solution, a connecting seat is fixedly installed at the bottom of the support beam, a pin is rotatably connected inside the connecting seat, and the pin is slidably connected to the inside of the long hole, a docking mechanism located inside the support frame is arranged on one side of the pin, and a limiting structure is in contact with the surface of the pin, and the limiting structure is composed of a limiting rod and an extrusion spring, the limiting rod is rotatably connected to the top surface of the reinforcement plate, the limiting rod is inclinedly arranged on one side of the pin, the top of the limiting rod is provided with an arc surface in contact with the bottom of the pin, and one side of the limiting rod is connected to the side wall of the support frame through an extrusion spring.

[0011] In the present technical solution, the adjusting mechanism is composed of a lifting hydraulic cylinder, which is fixedly installed inside the reinforcement plate, and the telescopic end of the lifting hydraulic cylinder is fixedly connected to the bottom plate, and the docking mechanism is composed of a stabilizing hydraulic cylinder, which is fixedly connected to the top surface of the reinforcement plate, and the telescopic end of the stabilizing hydraulic cylinder is fixedly connected to the support block, and the support block is correspondingly arranged below the support beam, and when the support block moves downward, the support block is located inside the support frame.

[0012] In the present technical solution, a groove for installing a guide assembly, a drive assembly and a locking assembly is provided at the bottom of the support beam, and the top surface of the support beam is in contact with a support mechanism. The support mechanism includes a support plate, and the support plate is fitted and connected to the top surface of the support beam. Mounting blocks are fixedly connected around the bottom of the support plate, and the mounting blocks are fixedly connected to the support beam by bolts. The top surface of the support plate is provided with a support surface for fitting with the top of the mine.

[0013] In the present technical solution, the guide assembly is composed of a guide sleeve and a guide block. The guide sleeve is a tubular structure and is fixedly connected to the inside of the two ends of the support beam. Two symmetrically distributed slots and sliding grooves are respectively provided around the guide sleeve. The guide block is a spherical structure and is slidably connected to the inside of the guide sleeve. A traction rope is movablely sleeved inside the guide sleeve, one end of the traction rope is fixedly connected to the protective plate, and the traction rope is located inside the slot.

[0014] In the present technical solution, both sides of the guide block are rotatably connected to the slider, the slider is embedded in the slide groove, and the slider is connected to the side wall of the slide groove through a reset spring. A through hole for connecting a traction rope is opened in the middle of the guide block, and the other end of the traction rope is connected to the driving assembly.

[0015] In the present technical solution, the driving assembly consists of a driving shaft and a driving motor, the driving shaft is rotatably connected to the inside of the bottom end of the support beam, the driving motor is fixedly installed to the side wall of the support beam, the output end of the driving motor and one end of the driving shaft are fixedly connected with mutually meshing gears, the other end of the driving shaft is fixedly connected with a latch tooth, the middle part of the driving shaft is fixedly connected to the winding wheel, and the surface of the winding wheel is connected to the traction rope, and the number of driving shafts is two and they are correspondingly distributed on both sides of the locking assembly.

[0016] In the present technical solution, the locking assembly is composed of a square rod, which is fixedly installed inside the bottom end of the support beam, and the square rod is located in the middle of the two driving shafts. A chuck and a push plate are movably sleeved on the surface of the square rod, and the chuck is connected to the inner wall of the support beam through a connecting spring, and the chuck is respectively engaged with two teeth, one side of the push plate is in contact with the chuck, and the other side of the push plate is fixedly connected to the movable rod, the movable rod passes through the support beam and extends to the outside, and the end of the movable rod is fixedly connected to the pressure plate, and a button switch is fixedly connected to the outer wall of the support beam corresponding to the pressure plate, and the button switch is electrically connected to the two driving motors respectively.

[0017] In the present technical solution, the side wall of the support beam is rotatably connected to a rotating rod, and the other end of the rotating rod is fixedly connected to a stabilizing sleeve, the stabilizing sleeve and the interior of the rotating rod are movably connected to a latch, one end of the latch is fixedly connected to a connecting plate, the connecting plate located on one side of the latch is threadedly connected to a screw rod, and the screw rod is threadedly connected to the interior of the rotating rod, and the other end of the latch is engaged with one of the side walls of the support beam.

[0018] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0019] The positive and progressive effects of the present invention are:

[0020] The above-mentioned coal mine underground filling mining support device adopts a multi-section support device to achieve support and protection underground in the coal mine. It uses side supports and top supports to ensure stable support strength, and can easily achieve stable folding during transfer and disassembly, so as to reduce space occupancy when transporting the support device, avoid collision between the support device and underground objects, and use adjustment mechanisms and docking mechanisms to achieve stable support at various positions when unfolding, and maintain stable contact with the top surface of the mine to ensure temporary support effects. The setting of the guide component can facilitate stable folding in the later stage, and can also make the underground space unaffected by the support device, which can minimize the space occupancy problem, and the support device can be folded through the driving component, which is convenient for transportation through the hanging rail in the later stage, and a locking component is provided to ensure stability during transportation, effectively reducing the difficulty of transportation and disassembly of the support device, and improving the construction efficiency of the support device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the half-section structure of the present invention.

[0023] Figure 3 For the present invention Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0024] Figure 4 For the present invention Figure 2 Schematic diagram of the local enlarged structure at point B in the middle.

[0025] Figure 5 It is a schematic diagram of the local three-dimensional structure of the support beam of the present invention.

[0026] Figure 6 It is a schematic diagram of the structure of the guide assembly and the drive assembly of the present invention.

[0027] Figure 7 For the present invention Figure 6 Schematic diagram of the partial enlarged structure at point C in the middle.

[0028] Figure 8 It is a schematic diagram of the internal front view structure of the present invention.

[0029] Fig. 9 It is a schematic diagram of the external structure of the present invention when viewed from above.

[0030] Fig.10 It is a schematic diagram of the three-dimensional structure of the rotating rod of the present invention.

[0031] Description of Reference Numerals

[0032] 100, side support assembly; 101, support frame; 102, reinforcement plate; 103, lifting hydraulic cylinder; 104, bottom plate; 105, stabilizing hydraulic cylinder; 106, support block; 107, protection plate; 108, long hole; 109, limit rod; 110, extrusion spring;

[0033] 200, top support assembly; 201, support beam; 202, connection seat; 203, pin shaft; 204, support plate; 205, mounting block; 206, support surface;

[0034] 300, guide assembly; 301, guide sleeve; 302, slot; 303, slide; 304, return spring; 305, slider; 306, guide block; 307, traction rope;

[0035] 400, driving assembly; 401, driving shaft; 402, winding wheel; 403, latching teeth; 404, driving motor; 405, gear; 406, push button switch;

[0036] 500, locking assembly; 501, square rod; 502, chuck; 503, push plate; 504, movable rod; 505, pressure plate; 506, connecting spring; 507, rotating rod; 508, stabilizing sleeve; 509, latch; 510, connecting plate; 511, screw rod. DETAILED DESCRIPTION

[0037] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0038] like Figure 1-10 As shown, the underground filling mining support device of the coal mine comprises:

[0039] A side support assembly 100, the side support assembly 100 is composed of a support frame 101, two reinforcement plates 102 are fixedly installed inside the support frame 101, and the bottom and top of the reinforcement plate 102 are respectively provided with an adjustment mechanism and a docking mechanism, and the adjustment mechanism and the docking mechanism are fixedly installed in the side support assembly 100;

[0040] The top support assembly 200 is composed of a support beam 201, both ends of the support beam 201 are movably connected to the side support assembly 100, a detachable support mechanism is installed on the top of the support beam 201, and the guide assembly 300, the drive assembly 400 and the locking assembly 500 are fixedly installed inside the support beam 201, respectively, the locking assembly 500 is arranged in the middle of the support beam 201, the guide assembly 300 and the drive assembly 400 are located on both sides of the locking assembly, and the locking assembly 500 and the drive assembly 400 are in contact with each other.

[0041] The cross-section of the support frame 101 is a U-shaped structure and fits against the side wall of the mine. Reinforcement plates 102 are provided at both ends of the support frame 101. The reinforcement plate 102 located at the top is rotatably connected to two limiting structures, and the two limiting structures are symmetrically distributed on both sides of the docking mechanism. A long hole 108 is provided on the side wall of the support frame 101 corresponding to the docking mechanism, and the length of the long hole 108 is greater than the length of the long hole 108 provided on the top of the support frame 101 on the other side of the support device. A protective plate 107 is fixedly installed on the side wall of the support frame 101, and the protective plate 107 is correspondingly arranged on one side of the adjustment mechanism.

[0042] In the present technical solution, the support frame 101 is an important structure on both sides of the support device. Stable installation is achieved through the reinforcement plate 102, and the stable installation of the adjustment mechanism and the docking mechanism can be ensured. The long hole 108 is arranged on the top of the support frame 101, which can facilitate the change of the position of the support frame 101 when hoisting the support device without affecting the stable support function of the support device. After the support device is placed underground, the adjustment mechanism and the docking mechanism are used to support the top support assembly 200, and a protective plate 107 is arranged on the support frame 101 to improve the protection performance. At the same time, the connection of the traction rope 307 is realized, which is convenient for subsequent disassembly to realize the traction of the support frame 101.

[0043] A connecting seat 202 is fixedly installed at the bottom of the support beam 201, and a pin shaft 203 is rotatably connected inside the connecting seat 202, and the pin shaft 203 is slidably connected to the inside of the long hole 108. The docking mechanism located inside the support frame 101 is arranged on one side of the pin shaft 203, and the limiting structure is in contact with the surface of the pin shaft 203. The limiting structure is composed of a limiting rod 109 and an extrusion spring 110. The limiting rod 109 is rotatably connected to the top surface of the reinforcement plate 102, and the limiting rod 109 is inclinedly arranged on one side of the pin shaft 203. The top of the limiting rod 109 is provided with an arc surface that contacts the bottom of the pin shaft 203, and one side of the limiting rod 109 is connected to the side wall of the support frame 101 through the extrusion spring 110.

[0044] In the present technical solution, the side support assembly 100 and the top support assembly 200 are connected by the pin shaft 203 inside the connecting seat 202, so that the pin shaft 203 of the side support assembly 100 is always not in contact with the side wall of the long hole 108 during support, and the support is achieved by the adjustment mechanism and the docking mechanism. When disassembly is required, the adjustment mechanism is shortened so that the support frame 101 is subjected to gravity. During the process, the gravity of the support frame 101 on one side overcomes the elasticity of the extrusion spring 110 and forces the limit rod 109 to rotate to one side. When the pin shaft 203 is located at the top of the long hole 108, the elasticity of the extrusion spring 110 pushes the limit rod 109 to rotate and makes the arc surface at its top resist the pin shaft 203, which can provide stability for the subsequent rotation of the support frame 101, so that both support frames 101 can complete the rotation around the pin shaft 203.

[0045] The adjustment mechanism is composed of a lifting hydraulic cylinder 103, which is fixedly installed inside the reinforcement plate 102, and the telescopic end of the lifting hydraulic cylinder 103 is fixedly connected to the bottom plate 104. The docking mechanism is composed of a stabilizing hydraulic cylinder 105, which is fixedly connected to the top surface of the reinforcement plate 102, and the telescopic end of the stabilizing hydraulic cylinder 105 is fixedly connected to the support block 106, and the support block 106 is correspondingly arranged below the support beam 201. When the support block 106 moves down, the support block 106 is located at the support frame 1 01 interior; the bottom of the support beam 201 is provided with grooves for installing the guide assembly 300, the drive assembly 400 and the locking assembly 500, the top surface of the support beam 201 is in contact with the support mechanism, the support mechanism includes a support plate 204, the support plate 204 is fitted and connected to the top surface of the support beam 201, the bottom of the support plate 204 is fixedly connected with mounting blocks 205, and the mounting blocks 205 are fixedly connected to the support beam 201 by bolts, and the top surface of the support plate 204 is provided with a support surface 206 for fitting with the top of the mine.

[0046] In the present technical scheme, the bottom plate 104 contacts the bottom surface, and the lifting hydraulic cylinder 103 pushes the support frame 101 and the support beam 201 upward when it is extended. When the support beam 201 drives the support mechanism to support the top of the mine, the support beam 201 and the top of the support frame 101 are supported, and at the same time, the stabilizing hydraulic cylinder 105 drives the support block 106 to resist the bottom of the support beam 201 to achieve stable support. At this time, the support block 106 is embedded in the support beam 201, and the support beam 201 is supported by the lifting hydraulic cylinder 103 and the stabilizing hydraulic cylinder 105. When support is achieved according to the shape of the top surface of the mine, the support plate 204 is installed on the top surface of the support beam 201, and the installation of the support plate 204 is achieved by the bolts on the mounting block 205. The support surface 206 is adapted to the top surface of the mine to achieve stable fit, thereby ensuring the stability of the support.

[0047] The guide assembly 300 consists of a guide sleeve 301 and a guide block 306. The guide sleeve 301 is a tubular structure and is fixedly connected to the two ends of the support beam 201. Two symmetrically distributed slots 302 and a slide slot 303 are respectively provided around the guide sleeve 301. The guide block 306 is a spherical structure and is slidably connected to the inside of the guide sleeve 301. A traction rope 307 is movably sleeved inside the guide sleeve 301. One end of the traction rope 307 is fixedly connected to the protection plate 107, and the traction rope 307 is located inside the slot 302; both sides of the guide block 306 are rotatably connected to the slider 305, the slider 305 is embedded in the slide slot 303, and the slider 305 is connected to the side wall of the slide slot 303 through a reset spring 304, a through hole for connecting the traction rope 307 is provided in the middle of the guide block 306, and the other end of the traction rope 307 is connected to the driving assembly 400.

[0048] In the present technical solution, after the support device is installed, the elasticity of the reset spring 304 pulls the guide block 306 to move to one side of the guide sleeve 301. At this time, the traction rope 307 inside it is pulled toward 90 degrees and is set on both sides of the support frame 101, and the traction rope 307 is located inside the slot 302. At this time, the transportation of the downhole equipment is convenient. When disassembly is required, the traction rope 307 is pulled by the drive assembly 400 to move. When the traction rope 307 pulls the guide block 306 to move, the guide block 306 rotates around the slider 305 to adjust the traction angle, and at the same time overcomes the elasticity of the reset spring 304 to move the guide block 306 toward the middle, so that the traction rope 307 tends to a horizontal position to achieve traction of the support frame 101, and the support frame 101 rotates around the pin shaft 203 to achieve folding, and then another support frame 101 is stored.

[0049] The driving assembly 400 is composed of a driving shaft 401 and a driving motor 404. The driving shaft 401 is rotatably connected to the bottom of the support beam 201. The driving motor 404 is fixedly installed to the side wall of the support beam 201. The output end of the driving motor 404 and one end of the driving shaft 401 are fixedly connected with mutually meshing gears 405. The other end of the driving shaft 401 is fixedly connected with a latching tooth 403. The middle part of the driving shaft 401 is fixedly connected to the winding wheel 402, and the surface of the winding wheel 402 is connected to the traction rope 307. There are two driving shafts 401 and they are correspondingly distributed on both sides of the locking assembly 500.

[0050] In the present technical solution, before starting the driving motor 404, the latching teeth 403 and the chuck 502 are in a separated state, and the electric driving shaft 401 rotates through the meshing of the gear 405. When the driving shaft 401 drives the winding wheel 402 to rotate, the traction rope 307 pulls the traction rope 307 to achieve winding. At this time, the traction force of the traction rope 307 pulls the guide block 306 to move, and at this time, the traction rope 307 pulls the support frame 101 to rotate to achieve storage. When installing, after the support frame 101 rotates to a vertical state, the elasticity of the reset spring 304 pulls the guide block 306 to reset, thereby storing the traction rope 307.

[0051] The locking assembly 500 is composed of a square rod 501, which is fixedly installed inside the bottom end of the support beam 201. The square rod 501 is located in the middle of the two driving shafts 401. A chuck 502 and a push plate 503 are movably sleeved on the surface of the square rod 501. The chuck 502 is connected to the inner wall of the support beam 201 through a connecting spring 506, and the chuck 502 is respectively engaged with two teeth 403. One side of the push plate 503 is in contact with the chuck 502, and the other side of the push plate 503 is fixedly connected to a movable rod 504. The movable rod 504 penetrates the support beam 201 and extends to the outside, and the end of the movable rod 504 is fixedly connected to a pressure plate 505. A button switch 406 is fixedly connected to the outer wall of the support beam 201 corresponding to the pressure plate 505, and the button switch 406 is electrically connected to the two driving motors 404 respectively.

[0052] In the present technical scheme, before starting the driving motor 404, by pressing the pressure plate 505, the pressure plate 505 drives the push plate 503 at the other end of the movable rod 504 to move, and the push plate 503 pushes the chuck 502 to slide synchronously on the surface of the square rod 501, so that the chuck 502 moves and separates from the latch tooth 403. At this time, the pressure plate 505 contacts the button switch 406, and the button switch 406 realizes the connection of the wires connected to the two driving motors 404. At this time, the corresponding driving motor 404 is controlled by the controller of the driving motor 404 to realize work, avoiding the wear problem caused by directly starting the driving motor 404 when the chuck 502 and the latch tooth 403 are engaged. Only when the circuit is connected at the time of separation, it is convenient for the subsequent control operation of the driving motor 404 to improve the safety performance. The chuck 502 is limited by the square rod 501 to fix the latch tooth 403, avoiding the loosening problem after the support frame 101 is folded.

[0053] The side wall of the support beam 201 is rotatably connected to a rotating rod 507, and the other end of the rotating rod 507 is fixedly connected to a stabilizing sleeve 508. The stabilizing sleeve 508 and the interior of the rotating rod 507 are movably connected to a latch 509. One end of the latch 509 is fixedly connected to a connecting plate 510. The connecting plate 510 located on one side of the latch 509 is threadedly connected to a screw 511, and the screw 511 is threadedly connected to the interior of the rotating rod 507. The other end of the latch 509 is engaged with one of the side walls of the support beam 201.

[0054] In the present technical scheme, after the support beam 201 is lifted by the crane in the mine, the two support frames 101 are folded and stored in sequence. At this time, the design of the long hole 108 makes the two support frames 101 staggered and stored, so that the support beam 201 and the two support frames 101 are in a parallel state after being stored, and then the rotating rod 507 is rotated to a vertical position, and the rotating rod 507 drives the stabilizing sleeve 508 to move to the lowest support frame 101, and the screw rod 511 is rotated to drive the connecting plate 510 and the latch 509 to move, and the latch 509 is plugged into the side wall of the support frame 101 below to achieve further limiting, ensuring stability during the storage process and avoiding the problem of the support frame 101 being unfolded during transportation. Since the support frame 101 is folded and stored in sequence under the support beam 201, the space occupied by the support device in the mine is effectively reduced, and the transportation of the support device is convenient. After being transported to the destination, it can be easily and quickly unfolded, and at the same time, a stable support function is realized, thereby improving the performance of the support device.

[0055] The present invention is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the present invention. The protection scope of the present invention is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications are within the protection scope of the present invention.

Claims

1. A coal mine underground filling mining support device, characterized in that: The underground filling mining support device of the coal mine comprises: A side support assembly (100), the side support assembly (100) comprising a support frame (101), two reinforcement plates (102) being fixedly mounted inside the support frame (101), the reinforcement plates (102) being provided with an adjustment mechanism and a docking mechanism at the bottom and top, respectively, and the adjustment mechanism and the docking mechanism being fixedly mounted inside the side support assembly (100); A top support assembly (200), the top support assembly (200) comprising a support beam (201), both ends of the support beam (201) being movably connected to the side support assembly (100), a detachable support mechanism being installed on the top of the support beam (201), and a guide assembly (300), a drive assembly (400) and a locking assembly (500) being fixedly installed inside the support beam (201), respectively, the locking assembly (500) being arranged in the middle of the support beam (201), the guide assembly (300) and the drive assembly (400) being located on both sides of the locking assembly, and the locking assembly (500) and the drive assembly (400) being in contact with each other.

2. The underground filling mining support device of coal mine according to claim 1, characterized in that: The support frame (101) has a U-shaped cross-section and fits with the side wall of the mine. The upper and lower ends of the support frame (101) are provided with reinforcement plates (102). The reinforcement plate (102) located at the top is rotatably connected to two limit structures. The two limit structures are symmetrically distributed on both sides of the docking mechanism. A long hole (108) is opened on the side wall of the support frame (101) corresponding to the docking mechanism, and the length of the long hole (108) is greater than the length of the long hole (108) opened on the top of the support frame (101) on the other side of the support device. A protective plate (107) is fixedly installed on the side wall of the support frame (101), and the protective plate (107) is correspondingly arranged on one side of the adjustment mechanism.

3. The underground filling mining support device of coal mine according to claim 1, characterized in that: A connecting seat (202) is fixedly mounted at the bottom of the support beam (201), a pin shaft (203) is rotatably connected inside the connecting seat (202), and the pin shaft (203) is slidably connected to the inside of the long hole (108), a docking mechanism located inside the support frame (101) is arranged on one side of the pin shaft (203), and a limiting structure contacts the surface of the pin shaft (203), the limiting structure is composed of a limiting rod (109) and an extrusion spring (110), the limiting rod (109) is rotatably connected to the top surface of the reinforcement plate (102), the limiting rod (109) is arranged in an inclined shape on one side of the pin shaft (203), the top of the limiting rod (109) is provided with an arc surface that contacts the bottom of the pin shaft (203), and one side of the limiting rod (109) is connected to the side wall of the support frame (101) through the extrusion spring (110).

4. The underground filling mining support device of coal mine according to claim 1, characterized in that: The adjustment mechanism is composed of a lifting hydraulic cylinder (103), the lifting hydraulic cylinder (103) is fixedly installed inside the reinforcement plate (102), and the telescopic end of the lifting hydraulic cylinder (103) is fixedly connected to the bottom plate (104); the docking mechanism is composed of a stabilizing hydraulic cylinder (105), the stabilizing hydraulic cylinder (105) is fixedly connected to the top surface of the reinforcement plate (102), and the telescopic end of the stabilizing hydraulic cylinder (105) is fixedly connected to the support block (106), and the support block (106) is correspondingly arranged below the support beam (201), and when the support block (106) moves downward, the support block (106) is located inside the support frame (101).

5. The underground filling mining support device of coal mine according to claim 1, characterized in that: The bottom of the support beam (201) is provided with a groove for installing a guide assembly (300), a drive assembly (400) and a locking assembly (500); the top surface of the support beam (201) is in contact with a support mechanism; the support mechanism comprises a support plate (204); the support plate (204) is fitted and connected to the top surface of the support beam (201); mounting blocks (205) are fixedly connected around the bottom of the support plate (204); the mounting blocks (205) are fixedly connected to the support beam (201) by bolts; and the top surface of the support plate (204) is provided with a support surface (206) for fitting with the top of the mine.

6. The underground filling mining support device of coal mine according to claim 1, characterized in that: The guide assembly (300) is composed of a guide sleeve (301) and a guide block (306); the guide sleeve (301) is a tubular structure and is fixedly connected to the inside of two ends of the support beam (201); two symmetrically distributed slots (302) and a slide groove (303) are respectively provided around the guide sleeve (301); the guide block (306) is a spherical structure and is slidably connected to the inside of the guide sleeve (301); a traction rope (307) is movably sleeved inside the guide sleeve (301); one end of the traction rope (307) is fixedly connected to the protection plate (107), and the traction rope (307) is located inside the slot (302).

7. The underground filling mining support device of coal mine according to claim 6, characterized in that: Both sides of the guide block (306) are rotatably connected to the slider (305), the slider (305) is embedded in the slide groove (303), and the slider (305) is connected to the side wall of the slide groove (303) via a return spring (304). A through hole for connecting a traction rope (307) is provided in the middle of the guide block (306), and the other end of the traction rope (307) is connected to the driving assembly (400).

8. The underground filling mining support device of coal mine according to claim 1, characterized in that: The driving assembly (400) is composed of a driving shaft (401) and a driving motor (404); the driving shaft (401) is rotatably connected to the inside of the bottom end of the support beam (201); the driving motor (404) is fixedly mounted to the side wall of the support beam (201); the output end of the driving motor (404) and one end of the driving shaft (401) are both fixedly connected with mutually meshing gears (405); the other end of the driving shaft (401) is fixedly connected with a latching tooth (403); the middle portion of the driving shaft (401) is fixedly connected to the winding wheel (402), and the surface of the winding wheel (402) is connected to the traction rope (307); there are two driving shafts (401) and they are correspondingly distributed on both sides of the locking assembly (500).

9. The underground filling mining support device of coal mine according to claim 1, characterized in that: The locking assembly (500) is composed of a square rod (501), which is fixedly installed inside the bottom end of the support beam (201). The square rod (501) is located in the middle of the two drive shafts (401). The surface of the square rod (501) is movably sleeved with a chuck (502) and a push plate (503). The chuck (502) is connected to the inner wall of the support beam (201) through a connecting spring (506), and the chuck (502) is meshed with two latch teeth (403) respectively. One side of the push plate (503) is in contact with the chuck (502), and the other side of the push plate (503) is fixedly connected to the movable rod (504), the movable rod (504) penetrates the support beam (201) and extends to the outside, and the end of the movable rod (504) is fixedly connected to the pressure plate (505), and the outer wall of the support beam (201) corresponding to the pressure plate (505) is fixedly connected with a button switch (406), and the button switch (406) is electrically connected to the two drive motors (404) respectively.

10. The underground filling mining support device of coal mine according to claim 1, characterized in that: The side wall of the support beam (201) is rotatably connected to a rotating rod (507), the other end of the rotating rod (507) is fixedly connected to a stabilizing sleeve (508), the inside of the stabilizing sleeve (508) and the rotating rod (507) are both movably plugged with a latch (509), one end of the latch (509) is fixedly connected to a connecting plate (510), the connecting plate (510) located on one side of the latch (509) is threadedly connected to a screw rod (511), and the screw rod (511) is threadedly connected to the inside of the rotating rod (507), and the other end of the latch (509) is plugged into one of the side walls of the support beam (201).

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