Close-distance coal seam roadway roof supporting device

Abstract

The invention relates to the technical field of roadway supporting, and provides a close-distance coal seam roadway roof supporting device which comprises a bottom plate and further comprises two supporting sliding sleeves, sliding rods, a supporting plate, a lifting mechanism and a limiting mechanism, the two supporting sliding sleeves are fixedly connected to the top end of the bottom plate, the sliding rods are slidably connected into the two supporting sliding sleeves, and the supporting plate is fixedly connected with the supporting sliding sleeves through the lifting mechanism. The supporting plate is fixedly connected to the top ends of the two sliding rods, lifting mechanisms are arranged on the two supporting sliding sleeves and used for driving the sliding rods to ascend and descend in the supporting sliding sleeves, and limiting mechanisms are arranged on the two supporting sliding sleeves and used for limiting the sliding rods subjected to ascending and descending adjustment. The problem that in the prior art, the supporting height is difficult to freely adjust when a roadway roof deforms due to pressure change is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of roadway support, in particular to a near-distance coal seam roadway roof support device. BACKGROUND

[0002] The near-distance coal seam roadway roof refers to the coal seam rock layer located at the top of the roadway during the mining of coal seams in coal mines. In the near-distance coal seam roadway, the roof is usually composed of rock, coal gangue or roadway covering layer. The stability of the roof is crucial to the safety and normal operation of the roadway. If the roof is unstable, it may cause roof collapse, collapse or roof fall accidents, which pose a threat to the production and personnel safety of the coal mine. Therefore, appropriate support and reinforcement measures need to be taken to protect the stability of the near-distance coal seam roadway roof during the mining process of the coal mine roadway.

[0003] The height of the existing support device is generally fixed after assembly, and it is difficult to freely adjust the support height according to the actual use requirements. It is prone to deformation or failure when the roadway roof is subjected to pressure changes, and it is difficult to effectively and stably support the roof, which may affect the safety of the roadway. SUMMARY

[0004] The present application provides a near-distance coal seam roadway roof support device to solve the problem of difficulty in freely adjusting the support height when the roadway roof is subjected to pressure changes in the prior art.

[0005] The technical scheme of the present application is as follows: a near-distance coal seam roadway roof support device, comprising a bottom plate, further comprising: a support sleeve, a slide rod, a support plate, a lifting mechanism and a limiting mechanism, the support sleeve is provided with two, both of the support sleeves are fixedly connected to the top end of the bottom plate, both of the support sleeves are slidably connected with the slide rod, the support plate is fixedly connected to the top end of the two slide rods, both of the support sleeves are provided with a lifting mechanism, which is used to drive the slide rod to move up and down in the support sleeve, both of the support sleeves are provided with a limiting mechanism, which is used to limit the slide rod after lifting adjustment.

[0006] Preferably, the lifting mechanism comprises a tooth plate, a rotating gear and a first motor, the tooth plate is fixedly connected to one side of the slide rod, the rotating gear is rotatably arranged on one side of the support sleeve, the rotating gear is engaged with the tooth plate, and the first motor is installed on one side of the support sleeve, and the output end of the first motor is fixedly connected with the rotating gear.

[0007] Further, the limiting mechanism comprises a limiting rack, a fixed frame, a sliding block, a fixed block, a limiting rod, a limiting block, a transmission assembly and a driving assembly, the limiting rack is fixedly connected to the other side of the sliding rod, the fixed frame is provided with two, the two fixed frames are fixedly connected to the side of the support sliding sleeve, the two fixed frames are both slidably connected with the sliding blocks, the fixed block is fixedly connected between the two sliding blocks, the limiting rod is fixedly connected to one end of the fixed block, the limiting block is fixedly connected to the other end of the limiting rod, the limiting block is provided with a gear slot, the gear slot is engaged with the limiting rack, the transmission assembly is arranged on the side of the support sliding sleeve, and the transmission assembly is arranged on the side of the support sliding sleeve. The two sliding blocks move on the two fixed frames, and the driving assembly is arranged on the side of the support sliding sleeve and used for driving the transmission assembly to move.

[0008] Further, the transmission assembly comprises a transmission shaft, a transmission rod and a transmission block, the transmission shaft is fixedly connected to the two sliding blocks, the transmission rod is rotatably connected to the two transmission shafts, and the transmission block is rotatably connected to the other end of the two transmission rods. The two transmission blocks are slidably arranged on the side of the support sliding sleeve through the sliding assembly.

[0009] Further, the sliding assembly comprises a guide rod and a support block, the guide rod is provided with two, the two transmission blocks are provided with a sliding hole, the two guide rods are slidably connected in the two sliding holes, and the two guide rods are fixedly connected with the support blocks. The support blocks are fixedly connected to the side of the support sliding sleeve.

[0010] As a further scheme of the application, the driving assembly comprises a driving frame, a driving screw and a second motor, the two ends of the driving frame are fixedly connected with the two transmission blocks, the driving screw is rotatably arranged on the side of the support sliding sleeve, the driving frame is provided with a screw hole, the driving screw is threadedly connected in the screw hole, the second motor is installed on the side of the support sliding sleeve, and the output end of the second motor is fixedly connected with the bottom end of the driving screw.

[0011] As a further scheme of the application, the support sliding sleeve is provided with two sliding grooves, and the tooth plate and the limiting rack are located in the two sliding grooves respectively.

[0012] On the basis of the foregoing scheme, the fixed frame is provided with a moving groove, and the sliding block is slidably arranged in the moving groove.

[0013] On the basis of the foregoing scheme, further, the transmission block is fixedly connected with a rotating seat, and the bottom end of the transmission rod is rotatably connected in the rotating seat.

[0014] As a preferred technical scheme of the application, the side of the support sliding sleeve is fixedly connected with a stabilizing frame, and the bottom end of the driving screw is rotatably connected with the stabilizing frame.

[0015] The working principle and beneficial effects of the present application are as follows:

[0016] In the present application, the height of the support plate supporting the roadway roof can be freely adjusted according to actual use requirements, the stability of the support is effectively improved, and the safety in the roadway is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] The present application will be further described in detail below in combination with the drawings and specific embodiments.

[0018] Figure 1 It is a structural schematic diagram of the present application as a whole.

[0019] Figure 2 It is a structural schematic diagram of the present application from another angle.

[0020] Figure 3 It is a structural schematic diagram of the support sliding sleeve, sliding rod and lifting mechanism of the present application.

[0021] Figure 4 It is a structural schematic diagram of the support sliding sleeve, sliding rod and limiting mechanism of the present application.

[0022] Figure 5 It is a structural schematic diagram of the limiting mechanism of the present application.

[0023] Figure 6 It is a structural schematic diagram of the present application Figure 2 It is a structural schematic diagram of the present application

[0024] In the figure: 1, bottom plate; 2, support sliding sleeve; 3, sliding rod; 4, support plate; 5, toothed plate; 6, rotating gear; 7, first motor; 8, limiting rack; 9, fixed frame; 10, sliding block; 11, fixed block; 12, limiting rod; 13, limiting block; 14, transmission shaft; 15, transmission rod; 16, transmission block; 17, guide rod; 18, support block; 19, drive frame; 20, drive screw; 21, second motor; 22, rotating seat; 23, stabilizing frame. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are involved in the scope of protection of the present application.

[0026] As Figures 1-6The embodiment shown proposes a roof supporting device for close-range coal seam roadway, which comprises a bottom plate 1, and further comprises: support sliding sleeve 2, slide rod 3, support plate 4, lifting mechanism and limiting mechanism, two support sliding sleeves 2 are arranged, and the two support sliding sleeves 2 are fixedly connected to the top end of the bottom plate 1, the slide rod 3 is slidably connected in the two support sliding sleeves 2, the support plate 4 is fixedly connected to the top end of the two slide rods 3, the lifting mechanism is arranged on the two support sliding sleeves 2, which is used for driving the slide rod 3 to move up and down in the support sliding sleeve 2, the limiting mechanism is arranged on the two support sliding sleeves 2, which is used for limiting the slide rod 3 after lifting adjustment, through the arrangement of the support sliding sleeve 2, the slide rod 3, the support plate 4, the lifting mechanism and the limiting mechanism, the height of the support plate 4 to the roof support can be freely adjusted according to the actual use requirement, the stability of the support is effectively improved, and the safety in the roadway is improved.

[0027] The lifting mechanism comprises: a tooth plate 5, a rotating gear 6 and a first motor 7, the tooth plate 5 is fixedly connected to one side of the slide rod 3, the rotating gear 6 is rotatably arranged on one side of the support sliding sleeve 2, the rotating gear 6 is engaged with the tooth plate 5, the first motor 7 is installed on one side of the support sliding sleeve 2, the output end of the first motor 7 is fixedly connected with the rotating gear 6, the rotating gear 6 is driven to rotate by the first motor 7, and the tooth plate 5 and the slide rod 3 are driven to rise or fall in the support sliding sleeve 2 when the rotating gear 6 rotates, so as to drive the support plate 4 to rise or fall according to the actual use requirement.

[0028] The limiting mechanism comprises a limiting rack 8, a fixed frame 9, a sliding block 10, a fixed block 11, a limiting rod 12, a limiting block 13, a transmission assembly and a driving assembly. Two sliding grooves are formed in the support sliding sleeve 2, the tooth plate 5 and the limiting rack 8 are located in the two sliding grooves respectively, the limiting rack 8 is fixedly connected to the other side of the sliding rod 3, two fixed frames 9 are provided, and the two fixed frames 9 are fixedly connected to one side of the support sliding sleeve 2. The two fixed frames 9 are both slidingly connected with the sliding block 10, a moving slot is formed in the fixed frame 9, the sliding block 10 is slidingly arranged in the moving slot, the fixed block 11 is fixedly connected between the two sliding blocks 10, the limiting rod 12 is fixedly connected to one end of the fixed block 11, the limiting block 13 is fixedly connected to the other end of the limiting rod 12, a gear slot is formed in the limiting block 13, the gear slot is engaged with the limiting rack 8, the transmission assembly is arranged on one side of the support sliding sleeve 2, and the transmission assembly is used for driving the two sliding blocks 10 to move on the two fixed frames 9. The driving assembly is arranged on one side of the support sliding sleeve 2, and the driving assembly is used for driving the transmission assembly to move. The transmission assembly comprises a transmission shaft 14, a transmission rod 15 and a transmission block 16. The transmission block 16 is fixedly connected with a rotating seat 22. The bottom end of the transmission rod 15 is rotatably connected in the rotating seat 22. The two sliding blocks 10 are both fixedly connected with the transmission shaft 14. The two transmission shafts 14 are both rotatably connected with the transmission rod 15. The other end of the two transmission rods 15 is rotatably connected with the transmission block 16. The two transmission blocks 16 are both slidingly arranged on one side of the support sliding sleeve 2 through a sliding assembly. The sliding assembly comprises a guide rod 17 and a support block 18. The guide rod 17 is provided with two. The two transmission blocks 16 are both provided with a sliding hole. The two guide rods 17 are respectively slidingly connected in the two sliding holes. The two guide rods 17 are both fixedly connected with the support block 18. The plurality of support blocks 18 are all fixedly connected on one side of the support sliding sleeve 2. The driving assembly comprises a driving frame 19, a driving screw 20 and a second motor 21. One side of the support sliding sleeve 2 is fixedly connected with a stabilizing frame 23. The bottom end of the driving screw 20 is rotatably connected with the stabilizing frame 23. The two ends of the driving frame 19 are respectively fixedly connected with the two transmission blocks 16. The driving screw 20 is rotatably arranged on one side of the support sliding sleeve 2. A screw hole is formed in the driving frame 19. The driving screw 20 is screw-connected in the screw hole. The second motor 21 is installed on one side of the support sliding sleeve 2. The output end of the second motor 21 is fixedly connected with the bottom end of the driving screw 20.

[0029] The second motor 21 drives the driving screw 20 to rotate. When the driving screw 20 rotates, the driving frame 19 is driven to descend. When the driving frame 19 descends, the two transmission blocks 16 are driven to move on the guide rod 17, so that the two transmission rods 15 swing downward following the transmission block 16, thereby pulling the two transmission shafts 14 and the two sliding blocks 10 to move in the fixed frame 9. When the two sliding blocks 10 move, the fixed block 11 and the limiting block 13 are driven to abut against the limiting rack 8, so that the gear slot formed in the limiting block 13 is engaged with the limiting rack 8, thereby limiting the sliding rod 3 in the support sliding sleeve 2.

[0030] Working principle: When the height of the support plate 4 needs to be adjusted, the first motor 7 drives the rotating gear 6 to rotate. When the rotating gear 6 rotates, it drives the toothed plate 5 and the sliding rod 3 to rise within the support sleeve 2, thereby causing the support plate 4 to rise according to the actual usage requirements, so that the support plate 4 presses against the tunnel roof. Then, the second motor 21 drives the drive screw 20 to rotate. When the drive screw 20 rotates, it drives the drive frame 19 to descend. When the drive frame 19 descends, it drives the two transmission blocks 16 to move on the guide rod 17, thereby causing the two transmission rods 15 to swing downward with the transmission blocks 16, thereby pulling the two transmission shafts 14 and the two sliders 10 on the fixed frame. The slide rod 3 moves within the support sleeve 2. When the two sliders 10 move, they drive the fixed block 11 and the limiting block 13 to abut against the limiting rack 8, so that the groove on the limiting block 13 meshes with the limiting rack 8, thereby limiting the slide rod 3 within the support sleeve 2. When adjustment is required again, the second motor 21 drives the drive screw 20 to rotate in the opposite direction, thereby driving the drive frame 19 and the two transmission blocks 16 to move upward. When the two transmission blocks 16 move upward, they drive the two transmission rods 15 to swing adaptively, thereby supporting the transmission shaft 14 and the slider 10 to move in the opposite direction within the fixed frame 9, thereby driving the fixed block 11 and the limiting block 13 away from the limiting rack 8, thereby releasing the restriction on the limiting rack 8 and the slide rod 3.

[0031] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A roof support device for a close-range coal seam roadway, comprising a floor plate (1), characterized in that, Also includes: Supporting sleeves (2), two supporting sleeves (2) are provided, and both supporting sleeves (2) are fixedly connected to the top of the base plate (1); The slide rod (3) is slidably connected inside both of the two supporting slide sleeves (2); A support plate (4) is fixedly connected to the top of the two slide rods (3); Lifting mechanism: Both of the two support sleeves (2) are equipped with lifting mechanisms to drive the slide rod (3) to move up and down within the support sleeves (2); Limiting mechanisms are provided on both of the support sleeves (2) to limit the sliding rod (3) after lifting and adjusting.

2. The close-range coal seam roadway roof support device according to claim 1, characterized in that, The lifting mechanism includes: Toothed plate (5), the toothed plate (5) is fixedly connected to one side of the slide rod (3); Rotating gear (6) is rotatably disposed on one side of the support sleeve (2), and the rotating gear (6) meshes with the toothed plate (5); The first motor (7) is installed on one side of the support sleeve (2), and the output end of the first motor (7) is fixedly connected to the rotating gear (6).

3. The close-range coal seam roadway roof support device according to claim 2, characterized in that, The limiting mechanism includes: A limiting rack (8) is fixedly connected to the other side of the slide rod (3); Fixing frame (9), two fixing frames (9) are provided, and both fixing frames (9) are fixedly connected to one side of the support sleeve (2); The slider (10) is slidably connected to both of the two fixing frames (9); A fixing block (11) is fixedly connected between the two sliders (10); A limiting rod (12) is fixedly connected to one end of the fixing block (11); A limiting block (13) is fixedly connected to the other end of the limiting rod (12). The limiting block (13) has a toothed groove that meshes with the limiting rack (8). A transmission assembly is disposed on one side of the support sleeve (2) for transmitting the two sliders (10) to move on the two fixed frames (9); A drive assembly is disposed on one side of the support sleeve (2) and is used to drive the transmission assembly to move.

4. A close-range coal seam roadway roof support device according to claim 3, characterized in that, The transmission assembly includes: The drive shaft (14) is fixedly connected to both sliders (10); The transmission rod (15) is rotatably connected to both of the two transmission shafts (14); The transmission block (16) is rotatably connected to the other end of each of the two transmission rods (15). Both transmission blocks (16) are slidably disposed on one side of the support sleeve (2) via a sliding assembly.

5. A close-range coal seam roadway roof support device according to claim 4, characterized in that, The sliding component includes: Guide rod (17), two guide rods (17) are provided, and sliding holes are provided on both transmission blocks (16), and the two guide rods (17) are slidably connected in the two sliding holes respectively; Support blocks (18) are fixedly connected to both ends of the two guide rods (17), and multiple support blocks (18) are fixedly connected to one side of the support sleeve (2).

6. A close-range coal seam roadway roof support device according to claim 5, characterized in that, The driving component includes: A drive frame (19) is fixedly connected at both ends to two transmission blocks (16); A drive screw (20) is rotatably disposed on one side of the support sleeve (2). A screw hole is provided on the drive frame (19), and the drive screw (20) is threaded into the screw hole. The second motor (21) is installed on one side of the support sleeve (2), and the output end of the second motor (21) is fixedly connected to the bottom end of the drive screw (20).

7. A close-range coal seam roadway roof support device according to claim 3, characterized in that, The support sleeve (2) has two grooves, and the toothed plate (5) and the limiting toothed rack (8) are located in the two grooves respectively.

8. A close-range coal seam roadway roof support device according to claim 7, characterized in that, The fixed frame (9) has a movable groove, and the slider (10) is slidably disposed in the movable groove.

9. A close-range coal seam roadway roof support device according to claim 4, characterized in that, A rotating seat (22) is fixedly connected to the transmission block (16), and the bottom end of the transmission rod (15) is rotatably connected to the rotating seat (22).

10. A close-range coal seam roadway roof support device according to claim 6, characterized in that, A stabilizing frame (23) is fixedly connected to one side of the supporting sleeve (2), and the bottom end of the driving screw (20) is rotatably connected to the stabilizing frame (23).

Images