Supporting device capable of sliding rapidly for coal seam fully-mechanized top coal caving

Abstract

The utility model provides a fast slippage supporting device for coal seam fully-mechanized top coal caving, and relates to the technical field of coal seam fully-mechanized top coal caving, the fast slippage supporting device comprises a base, a sliding groove is arranged in the base, a slippage assembly is arranged in the sliding groove, the slippage assembly comprises a lead screw, a sliding block is movably connected to the lead screw, and a third fixing block is fixedly connected to the sliding block. When the coal shoveling vehicle is about to make contact with the device, the sliding block slides towards the side close to the motor, the sliding block moves to drive the third fixing block and the gear to move towards the side close to the motor on the rack together, the whole system can be kept stable when the coal shoveling vehicle passes, and collision or friction is avoided; the sliding block drives the third fixing block and the gear to move on the rack towards the side far away from the motor, so that the whole system can rapidly recover to the original state after the coal shoveling car leaves, the operation efficiency of the system is improved through the design, the safety in the working process is enhanced, and stable operation of the whole system is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of coal seam fully-mechanized mining and top coal caving, in particular to a coal seam fully-mechanized mining and top coal caving fast sliding support device. Background Art

[0002] The coal seam fully-mechanized top-coal caving technology significantly improves mining efficiency by increasing the length of the working face and achieving rapid advancement. At the same time, this method reduces the amount of tunneling and the corresponding maintenance workload, reduces production costs, and in terms of safety, it effectively prevents accidents at the working face and ensures production safety. Fully-mechanized top-coal caving also improves the recovery rate of coal resources and optimizes the economic benefits of the mine.

[0003] The existing patent CN2758486Y discloses a series of rapid frame moving devices for fully mechanized top coal caving supports in "three soft" coal seams. The utility model adopts a rapid frame moving device for fully mechanized top coal caving supports, based on the original hydraulic supports, adopts a suspended base lifting cylinder. When moving the support, the support base is first lifted by more than 100-200mm, which eliminates the resistance of the bottom plate of the support base to the base and the friction resistance of the support base to the bottom plate, completely solving the problem of the base sinking of the top coal caving supports in "three soft coal seams" and enhancing the adaptability of the top coal caving supports to the fluctuation of the coal seam bottom plate.

[0004] The above technical solution adopts a suspended lifting base cylinder to eliminate the resistance of the bottom plate of the support base to the base and the friction resistance of the support base to the bottom plate, which completely solves the problem of the base sinking of the top coal caving support in the three soft coal seams and enhances the adaptability of the top coal caving support to the fluctuation of the coal seam bottom plate. The coal seam comprehensive mining and top coal caving technology increases the length of the working face and achieves rapid advancement, which greatly improves the mining efficiency. At the same time, this method reduces the amount of tunnel excavation and the corresponding maintenance workload, and reduces production costs. In terms of safety, it effectively prevents working face accidents and ensures production safety. Comprehensive mining and top coal caving also improves the recovery rate of coal resources and optimizes the economic benefits of the mine. However, there are still some challenges in this technical solution, especially the problem of safe distance when the mining vehicle passes by. When the mining vehicle passes by, the support assembly may not be able to effectively support the ore body, which may lead to safety hazards.

[0005] Therefore, the utility model provides a coal seam fully mechanized mining and top coal caving supporting device capable of rapid sliding. Utility Model Content

[0006] The utility model aims to solve the shortcomings in the prior art and provide a fast sliding support device for fully mechanized top coal caving in coal seams.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a coal seam comprehensive mining and top coal caving rapid sliding support device, comprising a base, a slide groove is opened in the base, a sliding assembly is arranged in the slide groove, the sliding assembly comprises a screw rod, a slider is movably connected to the screw rod, a third fixed block is fixedly connected to the slider, a gear is arranged on the third fixed block, and the gear is movably connected to the third fixed block and the gear by a third bolt, one end of the screw rod is fixedly connected to the base, the other end of the screw rod passes through the base and is fixedly connected to the output end of the motor, and a rack matched with the gear is fixedly connected on the side of the inner wall of the slide groove away from the screw rod.

[0008] As a preferred embodiment, a supporting assembly is provided on the base, and the supporting assembly includes a first supporting seat, one end of the first supporting seat is fixedly connected to the second supporting seat, and the second supporting seat is provided with a supporting assembly, and the supporting assembly includes a first fixed block, a first supporting rod is movably connected to the first fixed block, an end of the first supporting rod away from the first fixed block is movably connected to the second supporting rod, an end of the second supporting rod away from the first supporting rod is movably connected to the third supporting rod, and an end of the third supporting rod away from the second supporting rod is movably connected to the fourth supporting rod.

[0009] The technical effect of adopting the above further scheme is: the second electric telescopic rod pushes the first support rod, the second support rod, the third support rod and the fourth support rod to lift up until they touch the top of the mine, which can effectively support the ore body structure, prevent collapse accidents, and ensure the safety of mining operations.

[0010] As a preferred embodiment, a second groove is provided in the first support seat and the second support seat, an anti-slip pad is fixedly connected to the upper surface of the second support seat, the first support seat is fixedly connected through a connecting plate, a first groove is provided on the first support seat, a second electric telescopic rod is fixedly connected in the first groove, and the second electric telescopic rod is fixedly connected to the second support rod at one end away from the first support seat.

[0011] The technical effect of adopting the above further solution is: the anti-slip pad effectively reduces the vibration during the contact between the device and the track, prevents equipment damage, ensures stable operation, thereby protecting the safety of operators and improving work efficiency.

[0012] As a preferred embodiment, a push-pull assembly is provided at one end of the second support seat away from the first fixed block, and the push-pull assembly includes a connecting rod, one end of the connecting rod is fixedly connected to the second support seat, one end of the connecting rod is movably connected to a rope rod away from the second support seat, and one end of the rope rod is fixedly connected to a traction clamp away from the connecting rod.

[0013] The technical effect of adopting the above further scheme is: the traction clamp pulls the edge of the track to pull the device in or out, so that the mining vehicle can pass safely. At the same time, it can also allow the support assembly to quickly return to its original position, support the ore body structure, prevent collapse accidents, and ensure the safety of mining operations.

[0014] As a preferred embodiment, the first fixing block and the first supporting rod, the third supporting rod and the fourth supporting rod are movably connected by a first bolt, and the first supporting rod and the second supporting rod, the second supporting rod and the third supporting rod are movably connected by a second bolt.

[0015] The technical effect of adopting the above further solution is: the support rod adopts a rotating connection design, which can flexibly adapt to the support requirements of the ore body structure under different conditions and effectively enhance the stability and safety of the device.

[0016] As a preferred embodiment, the second support rod, the third support rod and the fourth support rod are fixedly connected with a second fixed block at the bottom end, the second fixed block at the bottom end of the second support rod is movably connected with a first electric telescopic rod, the other end of the first electric telescopic rod is movably connected with the second fixed block at the bottom end of the third support rod, the other second fixed block at the bottom end of the third support rod is movably connected with a first electric telescopic rod identical to the bottom end of the second support rod, and the other end of the first electric telescopic rod is movably connected with the second fixed block at the bottom end of the fourth support rod.

[0017] The technical effect of adopting the above further scheme is that the second electric telescopic rod plays a vital role in the working process of the mining machine. When the mining machine needs to pass through a specific area, the second electric telescopic rod will push the first support rod, the second support rod, the third support rod and the fourth support rod to lift up until they touch the top of the mine. This design enables the support structure to be flexibly adjusted according to the movement of the mining machine, thereby providing stable support for the mining machine. In addition, the second electric telescopic rod can also change the support angle of the third support rod and the fourth support rod. This variable angle design gives the entire support system greater flexibility, allowing the mining machine to pass through narrow or irregular spaces smoothly. At the same time, it also ensures that after the mining machine passes, each support rod can quickly return to its original support state, thereby ensuring the continuity and safety of the mining operation. In general, the second electric telescopic rod not only improves the working efficiency of the mining machine, but also enhances the safety during the working process. It is an indispensable and important part of the mining machine.

[0018] As a preferred embodiment, an anti-collision pad is fixedly connected to one end of the first support base away from the second support base, and a safety baffle is fixedly connected between the second electric telescopic rods.

[0019] The technical effect of adopting the above-mentioned further scheme is: the safety baffle can effectively prevent the device from vibrating during the sliding process, thereby avoiding threats to the workers walking on the device. The safety baffle can stabilize the operation of the device through its stable structure and reasonable design, and reduce safety hazards caused by vibration. When the workers are operating, the safety baffle plays a vital protective role, ensuring the safety of the workers and improving overall work efficiency.

[0020] Compared with the prior art, the advantages and positive effects of the utility model are:

[0021] By setting a sliding assembly, when the coal shovel truck is about to contact the device, the slider will slide to the side close to the motor. Since the slider is fixedly connected to the third fixed block, the movement of the slider will drive the third fixed block and the gear to move on the rack to the side close to the motor. This design allows the entire system to remain stable when the coal shovel truck passes by, avoiding possible collisions or friction. When the coal shovel truck passes by, the slider will drive the third fixed block and the gear to move on the rack away from the motor. This moving mechanism allows the entire system to quickly return to its original state after the coal shovel truck leaves, preparing for the passage of the next coal shovel truck. This design not only improves the operating efficiency of the system, but also enhances safety during the working process, ensuring the stable operation of the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of a coal seam fully mechanized top coal caving fast sliding support device provided by the utility model;

[0023] Figure 2 A disassembly diagram of a coal seam fully mechanized top coal caving fast sliding support device provided by the utility model;

[0024] Figure 3 A schematic diagram of the structure of a push-pull assembly of a coal seam fully mechanized top coal caving fast sliding support device provided by the utility model;

[0025] Figure 4 A disassembly diagram of a sliding component of a rapid sliding support device for fully mechanized coal mining and top coal caving provided by the utility model.

[0026] Legend:

[0027] 1. Base;

[0028] 2. Support assembly; 21. First support seat; 22. Second support seat; 23. Anti-skid pad; 24. Connecting plate; 25. First groove; 26. Anti-collision pad; 27. Second groove;

[0029] 3. Support assembly; 31. First fixing block; 32. First bolt; 33. First supporting rod; 34. Second supporting rod; 35. Third supporting rod; 36. Fourth supporting rod; 37. Second bolt; 38. Second fixing block; 39. First electric telescopic rod; 310. Second electric telescopic rod;

[0030] 4. Push-pull assembly; 41. Connecting rod; 42. Rope rod; 43. Pulling clamp;

[0031] 5. Sliding assembly; 51. Screw rod; 52. Sliding block; 53. Motor; 54. Third fixing block; 55. Gear; 56. Third bolt; 57. Rack;

[0032] 6. Safety baffle; 7. Slide. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] like Figure 1 - Figure 4As shown, this embodiment provides a technical solution: a coal seam comprehensive mining and top coal caving rapid sliding support device, comprising a base 1, a slide groove 7 is opened in the base 1, a sliding assembly 5 is arranged in the slide groove 7, the sliding assembly 5 comprises a screw rod 51, a slider 52 is movably connected to the screw rod 51, a third fixed block 54 is fixedly connected to the slider 52, a gear 55 is arranged on the third fixed block 54, the gear 55 movably connects the third fixed block 54 with the gear 55 through a third bolt 56, one end of the screw rod 51 is fixedly connected to the base 1, the other end of the screw rod 51 passes through the base 1 and is fixedly connected to the output end of the motor 53, a rack 57 adapted to the gear 55 is fixedly connected on the side of the inner wall of the slide groove 7 away from the screw rod 51, and when the coal shovel truck is about to contact the device, the slider 52 will slide toward the side close to the motor 53. Since the slider 52 is fixedly connected to the third fixed block 54, the movement of the slider 52 will drive the third fixed block 54 and the gear 55 to move on the rack 57 toward the side close to the motor 53. This design allows the entire system to remain stable when the coal shovel truck passes by, avoiding possible collision or friction. When the coal shovel truck passes by, the slider 52 will drive the third fixed block 54 and the gear 55 to move on the rack 57 away from the motor 53. This moving mechanism allows the entire system to quickly return to its original state after the coal shovel truck leaves, preparing for the passage of the next coal shovel truck. This design not only improves the operating efficiency of the system, but also enhances the safety during the working process, ensuring the stable operation of the entire system.

[0035] Further, such as Figure 1 - Figure 3 As shown: a support assembly 2 is arranged on the base 1, and the support assembly 2 includes a first support seat 21, one end of the first support seat 21 is fixedly connected to the second support seat 22, and a support assembly 3 is arranged on the second support seat 22, and the support assembly 3 includes a first fixed block 31, and a first supporting rod 33 is movably connected to the first fixed block 31, and the first supporting rod 33 is movably connected to the second supporting rod 34 at one end away from the first fixed block 31, and the second supporting rod 34 is movably connected to the third supporting rod 35 at one end away from the first supporting rod 33, and the third supporting rod 35 is movably connected to the fourth supporting rod 36 at one end away from the second supporting rod 34, and the second electric telescopic rod 310 pushes the first supporting rod 33, the second supporting rod 34, the third supporting rod 35 and the fourth supporting rod 36 to lift up until they contact the top of the mine, which can effectively support the ore body structure, prevent collapse accidents, and ensure the safety of mining operations.

[0036] The above solutions still have the problem of how to reduce the vibration caused by degradation, such as Figure 2 - Figure 3As shown: In the present embodiment, a second groove 27 is provided in the first support seat 21 and the second support seat 22, an anti-skid pad 23 is fixedly connected to the upper surface of the second support seat 22, the first support seat 21 is fixedly connected via a connecting plate 24, a first groove 25 is provided on the first support seat 21, a second electric telescopic rod 310 is fixedly connected in the first groove 25, and the second electric telescopic rod 310 is fixedly connected to the second supporting rod 34 at one end away from the first support seat 21, and the anti-skid pad 23 effectively reduces the vibration during the contact between the device and the track, prevents equipment damage, ensures stable operation, thereby protecting the safety of operators and improving work efficiency.

[0037] The above solutions still have the problem of how to change the space between the edge of the ore body and the track so that the mining machine can pass safely, such as Figure 3 As shown: In the present embodiment, a push-pull assembly 4 is arranged at one end of the second support seat 22 away from the first fixed block 31, and the push-pull assembly 4 includes a connecting rod 41, one end of the connecting rod 41 is fixedly connected to the second support seat 22, and one end of the connecting rod 41 away from the second support seat 22 is movably connected to a rope rod 42, and one end of the rope rod 42 away from the connecting rod 41 is fixedly connected to a traction clamp 43, and the traction clamp 43 pulls the edge of the track to pull the device in or out, so that the mining vehicle can pass safely. At the same time, it can also allow the support assembly 3 to quickly return to its original position, support the ore body structure, prevent collapse accidents, and ensure the safety of mining operations.

[0038] The above solutions still have the problem of how to control the telescopic connection between the support rods, such as Figure 2 As shown: In the present solution, the first fixed block 31 and the first supporting rod 33, the third supporting rod 35 and the fourth supporting rod 36 are movably connected by the first bolt 32, the first supporting rod 33 and the second supporting rod 34, the second supporting rod 34 and the third supporting rod 35 are movably connected by the second bolt 37, and the supporting rods adopt a rotating connection design, which can flexibly adapt to the support requirements of the ore body structure under different conditions, and effectively enhance the stability and safety of the device.

[0039] The above solutions still have the problem of realizing rotation between the supporting rods, such as Figure 1 - Figure 2As shown: in this solution, the second supporting rod 34, the third supporting rod 35 and the fourth supporting rod 36 are fixedly connected with the second fixing block 38 at the bottom end, and the first electric telescopic rod 39 is movably connected to the second fixing block 38 at the bottom end of the second supporting rod 34. The other end of the first electric telescopic rod 39 is movably connected to the second fixing block 38 at the bottom end of the third supporting rod 35. Another second fixing block 38 at the bottom end of the third supporting rod 35 is movably connected with the first electric telescopic rod 39 which is the same as the bottom end of the second supporting rod 34. The other end of the first electric telescopic rod 39 is movably connected to the second fixing block 38 at the bottom end of the fourth supporting rod 36. The second electric telescopic rod 310 plays a vital role in the working process of the mining machine. When the mining machine needs to pass through a specific area, the second electric telescopic rod 310 will push the first supporting rod 33, the second supporting rod 34 and the third supporting rod 35. 4. The third support rod 35 and the fourth support rod 36 are lifted upward until they touch the top of the mine. This design enables the support structure to be flexibly adjusted according to the movement of the mining machine, thereby providing stable support for the mining machine. In addition, the second electric telescopic rod 310 can also change the support angle of the third support rod 35 and the fourth support rod 36. This variable angle design gives the entire support system greater flexibility, allowing the mining machine to pass through narrow or irregular spaces smoothly. At the same time, it also ensures that after the mining machine passes, each support rod can quickly return to its original support state, thereby ensuring the continuity and safety of the mining operation. In general, the second electric telescopic rod 310 not only improves the working efficiency of the mining machine, but also enhances the safety during the working process. It is an indispensable and important part of the mining machine.

[0040] The above solutions still have the problem of how to ensure the safety of personnel, such as Figure 3 As shown: In the present solution, an anti-collision pad 26 is fixedly connected to one end of the first support seat 21 away from the second support seat 22, and a safety baffle 6 is fixedly connected between the second electric telescopic rod 310. The safety baffle 6 can effectively prevent the device from vibrating during the sliding process, thereby avoiding threats to the staff walking on the device. The safety baffle 6 can stabilize the operation of the device and reduce safety hazards caused by vibration through its stable structure and reasonable design. When the staff is operating, the safety baffle 6 plays a vital protective role, ensures the safety of the staff, and improves the overall work efficiency.

[0041] Working principle:

[0042] like Figure 1-4 As shown:

[0043] When in use: the second electric telescopic rod 310 pushes the first support rod 33, the second support rod 34, the third support rod 35 and the fourth support rod 36 upward until they touch the top of the mine. At this time, the coal shovel gradually approaches and is about to touch the device. The slider 52 slides toward the side close to the motor 53. Because the slider 52 is fixedly connected to the third fixed block 54, the slider 52 drives the third fixed block 54 and the gear 55 on the rack 57 to move toward the side close to the motor 53, and all components on the first support seat 21 and the second support seat 22 move synchronously with the slider 52. At this time, the first electric telescopic rod 39 at the bottom of the second supporting rod 34, the third supporting rod 35 and the fourth supporting rod 36 is started, and the third supporting rod 35 and the fourth supporting rod 36 are pulled back inward to leave space for the coal shoveling operation of the coal shoveling truck. After the coal shoveling truck passes, the slider 52 drives the third fixed block 54 and the gear 55 to move on the rack 57 away from the motor 53. At the same time, the first electric telescopic rod 39 at the bottom of the second supporting rod 34, the third supporting rod 35 and the fourth supporting rod 36 is started again, pushing the third supporting rod 35 and the fourth supporting rod 36 to contact with the mine.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A coal seam fully mechanized top coal caving fast sliding support device, comprising a base (1), characterized in that: The base (1) is provided with a slide groove (7), a sliding assembly (5) is arranged in the slide groove (7), the sliding assembly (5) comprises a screw rod (51), a slider (52) is movably connected to the screw rod (51), a third fixed block (54) is fixedly connected to the slider (52), a gear (55) is arranged on the third fixed block (54), the gear (55) movably connects the third fixed block (54) and the gear (55) through a third bolt (56), one end of the screw rod (51) is fixedly connected to the base (1), the other end of the screw rod (51) passes through the base (1) and is fixedly connected to the output end of the motor (53), and a rack (57) adapted to the gear (55) is fixedly connected to the inner wall of the slide groove (7) away from the screw rod (51).

2. A coal seam fully mechanized top coal caving rapid sliding support device according to claim 1, characterized in that: The base (1) is provided with a support assembly (2), the support assembly (2) comprising a first support seat (21), one end of the first support seat (21) being fixedly connected to a second support seat (22), the second support seat (22) being provided with a support assembly (3), the support assembly (3) comprising a first fixed block (31), a first support rod (33) being movably connected to the first fixed block (31), an end of the first support rod (33) away from the first fixed block (31) being movably connected to a second support rod (34), an end of the second support rod (34) away from the first support rod (33) being movably connected to a third support rod (35), and an end of the third support rod (35) away from the second support rod (34) being movably connected to a fourth support rod (36).

3. A coal seam fully mechanized top coal caving fast sliding support device according to claim 2, characterized in that: A second groove (27) is provided in the first support seat (21) and the second support seat (22); an anti-slip pad (23) is fixedly connected to the upper surface of the second support seat (22); the first support seat (21) is fixedly connected via a connecting plate (24); a first groove (25) is provided on the first support seat (21); a second electric telescopic rod (310) is fixedly connected in the first groove (25); and an end of the second electric telescopic rod (310) away from the first support seat (21) is fixedly connected to a second supporting rod (34).

4. A coal seam fully mechanized top coal caving fast sliding support device according to claim 3, characterized in that: A push-pull assembly (4) is provided at one end of the second support seat (22) away from the first fixed block (31), and the push-pull assembly (4) comprises a connecting rod (41), one end of the connecting rod (41) is fixedly connected to the second support seat (22), one end of the connecting rod (41) away from the second support seat (22) is movably connected to a rope rod (42), and one end of the rope rod (42) away from the connecting rod (41) is fixedly connected to a traction clamp (43).

5. A coal seam fully mechanized top coal caving fast sliding support device according to claim 4, characterized in that: The first fixing block (31) and the first supporting rod (33), the third supporting rod (35) and the fourth supporting rod (36) are movably connected via a first bolt (32), and the first supporting rod (33) and the second supporting rod (34), the second supporting rod (34) and the third supporting rod (35) are movably connected via a second bolt (37).

6. A coal seam fully mechanized top coal caving fast sliding support device according to claim 5, characterized in that: The second supporting rod (34), the third supporting rod (35) and the fourth supporting rod (36) are fixedly connected with a second fixing block (38) at the bottom end; the second fixing block (38) at the bottom end of the second supporting rod (34) is movably connected with a first electric telescopic rod (39); the other end of the first electric telescopic rod (39) is movably connected with the second fixing block (38) at the bottom end of the third supporting rod (35); another second fixing block (38) at the bottom end of the third supporting rod (35) is movably connected with a first electric telescopic rod (39) identical to the bottom end of the second supporting rod (34); the other end of the first electric telescopic rod (39) is movably connected with the second fixing block (38) at the bottom end of the fourth supporting rod (36).

7. A coal seam fully mechanized top coal caving fast sliding support device according to claim 5, characterized in that: An anti-collision pad (26) is fixedly connected to one end of the first support seat (21) away from the second support seat (22), and a safety baffle (6) is fixedly connected between the second electric telescopic rods (310).

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