Adjustable coal mine tunneling supporting equipment

Abstract

The invention discloses adjustable coal mine tunneling supporting equipment, and relates to the technical field of coal mine tunneling supporting, the equipment comprises a protection box body, a first moving block is arranged on the side wall of the protection box body, and first hydraulic telescopic rods are mounted on the side walls of the first moving block and the protection box body; an installation block is installed at the output end of the first hydraulic telescopic rod, arc-shaped limiting frames are installed at the end, away from the first hydraulic telescopic rod, of the installation block, a first supporting frame and a connecting plate are installed on the opposite side walls of the two arc-shaped limiting frames correspondingly, and a first supporting plate is installed on the side wall, close to the first supporting frame, of the connecting plate. By shrinking a second supporting frame, a second supporting plate and an arc-shaped cross sliding block, the height of a mounting block, an arc-shaped limiting frame, a first supporting plate, a first supporting frame, a second supporting frame, a second supporting plate and the arc-shaped cross sliding block is shrunk and reduced, the distance between two first hydraulic telescopic rods is reduced, and the size of the whole equipment is reduced; and the equipment can be conveniently moved and deployed in a mine.

Description

Technical Field

[0001] The invention relates to the technical field of coal mine excavation support, in particular to adjustable coal mine excavation support equipment. Background Art

[0002] During coal mining, support measures can effectively prevent working face collapse and avoid accidents such as collapse and landslides caused by changing geological conditions or mining disturbances, thereby ensuring the safety of miners and the normal operation of equipment. Support measures provide miners with a relatively safe working environment, reduce the risks they face during operations, and ensure their personal safety.

[0003] Because the space in a mine is small, the support equipment must be placed close to the sidewalls to provide support. This makes the support equipment bulky and inconvenient to maneuver and deploy within the mine. Furthermore, in the event of an accident, the existing support equipment provides no hiding space for personnel, preventing them from effectively avoiding danger.

[0004] In view of the above problems, an improved adjustable coal mine excavation support equipment is now designed. Summary of the Invention

[0005] The object of the present invention is to provide adjustable coal mine excavation support equipment to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The adjustable coal mine excavation support equipment includes a protective box body, a first moving block is provided on one side wall of the protective box body, and a first hydraulic telescopic rod is vertically installed on the side wall of the first moving block away from the protective box body and the side wall of the protective box body away from the first moving block, and the output end of the first hydraulic telescopic rod is installed with a mounting block, and an end of the mounting block away from the first hydraulic telescopic rod is installed with an arc-shaped limit frame for supporting the top of the mine, and a first support frame and a connecting plate are respectively installed on the opposite side walls of the two arc-shaped limit frames, and a first support plate is installed on the side wall of the connecting plate close to the first support frame, and the first support plate is slidably connected to the inner wall of the first support frame, and an adjusting mechanism for adjusting the spacing between the two first hydraulic telescopic rods is provided inside the protective box body, and a fixing mechanism for supporting and fixing the protective box body and the first hydraulic telescopic rod is provided at the lower end of the protective box body, and an expansion mechanism for expanding the support range is provided on the arc-shaped limit frame.

[0008] As a further solution of the present invention: the adjusting mechanism includes a bidirectional screw, a sliding groove used in conjunction with the first moving block is opened on the side wall of the protective box body close to the first moving block, and a moving plate is installed on one end of the first moving block close to the protective box body through the sliding groove, and the moving plate moves along the inner wall of the protective box body, and the bidirectional screw is vertically arranged on the side of the protective box body away from the first moving block, and a rotating rod is installed at the center position of the bidirectional screw, and the lower end of the rotating rod is rotatably connected to the bottom of the protective box body, and the upper end of the rotating rod is installed with a first motor for driving the rotating rod to rotate, and the first motor is installed in the protective box body The top of the protective box body, the two opposite direction threads of the bidirectional screw are rotatably connected to the second moving block, the second moving block is connected to the side wall of the moving plate close to the swing arm by a hinge, the end of the swing arm away from the second moving block is rotatably connected to the end of the moving plate away from the first moving block by a hinge, and the end of the swing arm close to the first moving block is arranged at the upper and lower ends of the moving plate. When the two second moving blocks move to the two ends of the bidirectional screw, the swing arm is in a horizontal state, and a box door is provided on the side wall of the protective box body close to the extending direction of the arc limit frame to enable staff to hide inside the protective box body in the event of an accident.

[0009] As a further solution of the present invention: balls are installed on the side wall of the movable plate close to the protective box body to facilitate the movable plate to move along the inner wall of the protective box body.

[0010] As a further solution of the present invention: reinforcing ribs for improving the structural strength of the swing arm are installed on the side wall of the swing arm.

[0011] As a further solution of the present invention: the fixing mechanism includes a telescopic frame and several fixing rods, the telescopic frame is horizontally installed at the lower end of the protective box, the lower end of the first hydraulic telescopic rod on the first movable block is installed with a fixed block, the side wall of the fixed block close to the telescopic frame is installed with a telescopic plate, the telescopic plate is slidably connected to the inner wall of the telescopic frame, the fixed block and the telescopic frame are both provided with through holes, the fixing rods pass through the through holes to fix the fixed block and the telescopic frame to the ground.

[0012] As a further solution of the present invention: the expansion mechanism includes a second support frame, an arc-shaped cross slide groove is provided on the arc-shaped limit frame, and an arc-shaped cross slide is slidably connected to the inner wall of the arc-shaped cross slide groove, the second support frame is installed at the upper end of one of the arc-shaped cross slides, the second support frame and the first support frame are arranged on the same side, the second support plate is slidably connected to the inner wall of the second support frame, the second support plate passes through the side wall of the second support frame and is installed with a first connecting block, the first connecting block is installed at the upper end of the arc-shaped cross slide away from the side of the second support frame, the lower end of the arc-shaped cross slide where the second support frame is located is installed with a second motor, the second motor is arranged at one end of the arc-shaped cross slide close to the mounting block, and the output end of the second motor is installed with a friction roller that rolls along the lower end of the first support frame.

[0013] As a further solution of the present invention: a pulling rod for pulling the mounting block is installed on the side wall of the output end of the first hydraulic telescopic rod away from the arc-shaped limit frame, and the upper end of the pulling rod is installed on the side wall of the mounting block.

[0014] As a further solution of the present invention, the friction roller is replaced by a gear, and a rack used in conjunction with the gear is installed at the lower end of the first support frame.

[0015] As a further solution of the present invention: a moving roller is installed at the lower end of the telescopic frame to facilitate the staff to move the entire device.

[0016] As a further solution of the present invention: when the second support frame and the first connecting block are extended a long distance, a second hydraulic telescopic rod for supporting the second support frame and the first connecting block is vertically arranged at the end of the second support frame away from the protective box body, and the output end of the second hydraulic telescopic rod is equipped with a connecting support block that is docked with the end of the second support frame and the first connecting block away from the protective box body.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention retracts the second support frame, the second support plate and the arc-shaped cross slider onto the first support plate, the first support frame and the arc-shaped limit frame, and reduces the height of the mounting block, the arc-shaped limit frame, the first support plate, the first support frame, the second support frame, the second support plate and the arc-shaped cross slider through the first hydraulic telescopic rod. By retracting the first moving block into the protective box, the distance between the two first hydraulic telescopic rods is reduced, thereby effectively reducing the volume of the entire equipment and facilitating the movement and deployment of the equipment in the mine.

[0019] The present invention uses a bidirectional screw to move the two second moving blocks to both ends, so that the swing rod pushes the first moving block to extend and keeps the swing rod in a horizontal state. While increasing the distance between the two first hydraulic telescopic rods, it can also form a certain space inside the protective box. This space can provide shelter and protection for workers when an accident occurs in the mine. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 It is a structural schematic diagram of the adjustment mechanism in the present invention.

[0022] Figure 3 It is a structural schematic diagram of the arc-shaped cross slide in the present invention.

[0023] Figure 4 It is a structural diagram of the expansion mechanism in the present invention.

[0024] Figure 5 It is a structural schematic diagram of the second hydraulic telescopic rod and the connecting support block in the present invention.

[0025] Among them: 1. Protective box body; 2. First hydraulic telescopic rod; 3. Mounting block; 4. Arc-shaped limit frame; 5. First support plate; 6. First support frame; 7. Second support frame; 8. Second support plate; 9. First connecting block; 10. First moving block; 11. Fixed block; 12. Fixed drill; 13. Telescopic plate; 14. Telescopic frame; 15. Box door; 16. Swing rod; 17. Rotating rod; 18. Second moving block; 19. Bidirectional screw; 20. First motor; 21. Slide; 22. Moving plate; 23. Perforation; 24. Connecting plate; 25. Arc-shaped cross slide; 26. Arc-shaped cross slider; 27. Friction roller; 28. Second motor; 29. Second hydraulic telescopic rod; 30. Connecting support block. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-Figure 5In an embodiment of the present invention, an adjustable coal mine excavation support device includes a protective box body 1, a first movable block 10 is provided on one side wall of the protective box body 1, a first hydraulic telescopic rod 2 is vertically installed on the side wall of the first movable block 10 away from the protective box body 1 and the side wall of the protective box body 1 away from the first movable block 10, the output end of the first hydraulic telescopic rod 2 is installed with a mounting block 3, and an end of the mounting block 3 away from the first hydraulic telescopic rod 2 is installed with an arc-shaped limit frame 4 for supporting the top of the mine, and the two arc-shaped limit frames 4 are relative to each other. A first support frame 6 and a connecting plate 24 are respectively installed on the side walls, and a first support plate 5 is installed on the side wall of the connecting plate 24 close to the first support frame 6. The first support plate 5 is slidably connected to the inner wall of the first support frame 6. The interior of the protective box body 1 is provided with an adjusting mechanism for adjusting the distance between the two first hydraulic telescopic rods 2, and the lower end of the protective box body 1 is provided with a fixing mechanism for supporting and fixing the protective box body 1 and the first hydraulic telescopic rod 2. The arc-shaped limit frame 4 is provided with an expansion mechanism for expanding the support range.

[0028] The adjusting mechanism includes a bidirectional screw 19, and a slide groove 21 for use with the first moving block 10 is opened on the side wall of the protective box 1 close to the first moving block 10. A moving plate 22 is installed at one end of the first moving block 10 close to the protective box 1 through the slide groove 21. The moving plate 22 moves along the inner wall of the protective box 1. The bidirectional screw 19 is vertically arranged on the side of the protective box 1 away from the first moving block 10. A rotating rod 17 is installed at the center position of the bidirectional screw 19. The lower end of the rotating rod 17 is rotatably connected to the bottom of the protective box 1, and the upper end of the rotating rod 17 is installed with a first motor 20 for driving the rotating rod 17 to rotate. The first motor 20 is installed on the top of the protective box 1 The two opposite threads of the bidirectional screw 19 are rotatably connected to the second moving block 18, and the side wall of the second moving block 18 close to the moving plate 22 is rotatably connected to the swing rod 16 through a hinge. The end of the swing rod 16 away from the second moving block 18 is rotatably connected to the end of the moving plate 22 away from the first moving block 10 through a hinge. The end of the swing rod 16 close to the first moving block 10 is arranged at the upper and lower ends of the moving plate 22. When the two second moving blocks 18 move to the two ends of the bidirectional screw 19, the swing rod 16 is in a horizontal state. The side wall of the protective box 1 close to the extending direction of the arc-shaped limit frame 4 is provided with a box door 15 for allowing the staff to hide inside the protective box 1 in the event of an accident.

[0029] When in use, the first motor 20 is started, and the output end of the first motor 20 drives the rotating rod 17 to rotate, and the rotating rod 17 drives the bidirectional screw 19 to rotate. Under the action of the thread, the bidirectional screw 19 drives the two second moving blocks 18 to move in the direction away from the center position of the bidirectional screw 19, and the second moving block 18 drives the swing rod 16 to swing, and the swing rod 16 pushes the moving plate 22 to move, and the moving plate 22 pushes the first moving block 10 to move, and the first moving block 10 pushes the first hydraulic telescopic rod 2 to move, thereby making the two first hydraulic telescopic rods 2 move away from each other.

[0030] The fixing mechanism includes a telescopic frame 14 and several fixing rods 12. The telescopic frame 14 is horizontally installed at the lower end of the protective box 1. The lower end of the first hydraulic telescopic rod 2 on the first moving block 10 is installed with a fixed block 11. The fixed block 11 is installed with a telescopic plate 13 on the side wall close to the telescopic frame 14. The telescopic plate 13 is slidably connected to the inner wall of the telescopic frame 14. A through hole 23 is opened on the fixed block 11 and the telescopic frame 14. The fixing rod 12 passes through the through hole 23 to fix the fixed block 11 and the telescopic frame 14 to the ground.

[0031] When the two first hydraulic telescopic rods 2 move away from each other, the first hydraulic telescopic rod 2 on the first movable block 10 drives the fixed block 11 to move, and the fixed block 11 drives the telescopic plate 13 to slide along the inner wall of the telescopic frame 14 to increase the support area of the bottom of the equipment, and then the fixing rod 12 is passed through the through hole 23 to fix the fixed block 11 and the telescopic frame 14 to the ground.

[0032] The expansion mechanism includes a second support frame 7, an arc-shaped cross slide 25 is provided on the arc-shaped limit frame 4, and an arc-shaped cross slide block 26 is slidably connected to the inner wall of the arc-shaped cross slide block 25, and the second support frame 7 is installed on the upper end of one of the arc-shaped cross slide blocks 26, and the second support frame 7 and the first support frame 6 are arranged on the same side, and a second support plate 8 is slidably connected to the inner wall of the second support frame 7, and the second support plate 8 passes through the side wall of the second support frame 7 and is installed with a first connecting block 9, and the first connecting block 9 is installed on the upper end of the arc-shaped cross slide block 26 away from the side of the second support frame 7, and the lower end of the arc-shaped cross slide block 26 where the second support frame 7 is located is installed with a second motor 28, and the second motor 28 is arranged at the end of the arc-shaped cross slide block 26 close to the mounting block 3, and the output end of the second motor 28 is installed with a friction roller 27 that rolls along the lower end of the first support frame 6.

[0033] When in use, the second motor 28 is started, and the output end of the second motor 28 drives the friction roller 27 to rotate, and the friction roller 27 rolls along the lower end of the first support frame 6, so that the friction roller 27 drives the second motor 28 to move, and the second motor 28 drives the arc-shaped cross slider 26 to move, and the arc-shaped cross slider 26 drives the second support frame 7, the second support plate 8 and the first connecting block 9 to move, thereby realizing the expansion of the arc-shaped cross slider 26.

[0034] When the second support frame 7 and the first connecting block 9 are extended a long distance, a second hydraulic telescopic rod 29 is vertically arranged at the end of the second support frame 7 away from the protective box body 1 to support the second support frame 7 and the first connecting block 9, and the output end of the second hydraulic telescopic rod 29 is installed with a connecting support block 30 that is docked with the end of the second support frame 7 and the first connecting block 9 away from the protective box body 1.

[0035] The working principle of the adjustable coal mine excavation support equipment: when in use, first start the second motor 28, the output end of the second motor 28 drives the friction roller 27 to rotate, and the friction roller 27 rolls along the lower end of the first support frame 6, so that the friction roller 27 drives the second motor 28 to move, and the second motor 28 drives the arc-shaped cross slider 26 to move, and the arc-shaped cross slider 26 drives the second support frame 7, the second support plate 8 and the first connecting block 9 to move, thereby realizing the expansion of the arc-shaped cross slider 26.

[0036] Start the first motor 20, and the output end of the first motor 20 drives the rotating rod 17 to rotate, and the rotating rod 17 drives the bidirectional screw 19 to rotate. Under the action of the thread, the bidirectional screw 19 drives the two second moving blocks 18 to move in the direction away from the center position of the bidirectional screw 19, and the second moving block 18 drives the swing rod 16 to swing, and the swing rod 16 pushes the moving plate 22 to move, and the moving plate 22 pushes the first moving block 10 to move, and the first moving block 10 pushes the first hydraulic telescopic rod 2 to move, thereby making the two first hydraulic telescopic rods 2 move away from each other.

[0037] When the two first hydraulic telescopic rods 2 move away from each other, the first hydraulic telescopic rod 2 on the first movable block 10 drives the fixed block 11 to move, and the fixed block 11 drives the telescopic plate 13 to slide along the inner wall of the telescopic frame 14 to increase the support area of the bottom of the equipment, and then the fixing rod 12 is passed through the through hole 23 to fix the fixed block 11 and the telescopic frame 14 to the ground.

[0038] At the same time, the first hydraulic telescopic rod 2 drives the two arc-shaped limit frames 4 away from each other, and the arc-shaped limit frame 4 drives the first support plate 5 to move out of the first support frame 6. At the same time, the arc-shaped limit frame 4 drives the two arc-shaped cross sliders 26 away from each other, and the arc-shaped cross slider 26 drives the second support plate 8 to move out of the second support frame 7.

[0039] Then start the first hydraulic telescopic rod 2 to extend, and the output end of the first hydraulic telescopic rod 2 pushes the mounting block 3, the arc-shaped limit frame 4, the first support plate 5, the first support frame 6, the second support frame 7, the second support plate 8, and the arc-shaped cross slider 26 to move upward, so that the arc-shaped limit frame 4, the first support plate 5, the first support frame 6, the second support frame 7, the second support plate 8, and the arc-shaped cross slider 26 support and protect the top of the mine.

[0040] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

Claims

1. An adjustable coal mine excavation support device, comprising a protective box (1), a first movable block (10) being provided on one side wall of the protective box (1), a first hydraulic telescopic rod (2) being vertically mounted on the side wall of the first movable block (10) away from the protective box (1) and the side wall of the protective box (1) away from the first movable block (10), a mounting block (3) being mounted on the output end of the first hydraulic telescopic rod (2), an arc-shaped limit frame (4) for supporting the top of the mine being mounted on one end of the mounting block (3) away from the first hydraulic telescopic rod (2), a first support frame (6) and a connecting plate (24) being mounted on opposite side walls of the two arc-shaped limit frames (4), a first support plate (5) being mounted on the side wall of the connecting plate (24) close to the first support frame (6), the first support plate (5) being slidably connected to the inner wall of the first support frame (6), and characterized in that: The interior of the protection box (1) is provided with an adjustment mechanism for adjusting the distance between the two first hydraulic telescopic rods (2); the lower end of the protection box (1) is provided with a fixing mechanism for supporting and fixing the protection box (1) and the first hydraulic telescopic rods (2); and the arc-shaped limit frame (4) is provided with an expansion mechanism for expanding the support range.

2. The adjustable coal mine excavation support equipment according to claim 1, characterized in that: The adjusting mechanism includes a bidirectional screw (19), a sliding groove (21) for use with the first moving block (10) is opened on the side wall of the protective box (1) close to the first moving block (10), and a moving plate (22) is installed on one end of the first moving block (10) close to the protective box (1), passing through the sliding groove (21), and the moving plate (22) moves along the inner wall of the protective box (1), and the bidirectional screw (19) is vertically arranged on a side of the protective box (1) away from the first moving block (10), and a rotating rod (17) is installed at the center position of the bidirectional screw (19), and the lower end of the rotating rod (17) is rotatably connected to the bottom of the protective box (1), and the upper end of the rotating rod (17) is installed with a first motor (20) for driving the rotating rod (17) to rotate, and the first motor (20) is installed in the protective box. (1) top, the two opposite direction threads of the bidirectional screw (19) are both rotatably connected to the second moving block (18), the side wall of the second moving block (18) close to the moving plate (22) is rotatably connected to the swing rod (16) through a hinge, the end of the swing rod (16) away from the second moving block (18) is rotatably connected to the end of the moving plate (22) away from the first moving block (10) through a hinge, the end of the swing rod (16) close to the first moving block (10) is set at the upper and lower ends of the moving plate (22), when the two second moving blocks (18) move to the two ends of the bidirectional screw (19), the swing rod (16) is in a horizontal state, and the side wall of the protective box (1) close to the extending direction of the arc limit frame (4) is provided with a box door (15) for allowing the staff to hide inside the protective box (1) in the event of an accident.

3. The adjustable coal mine excavation support equipment according to claim 2, characterized in that: A ball bearing is installed on the side wall of the movable plate (22) close to the protective box (1) to facilitate the movable plate (22) to move along the inner wall of the protective box (1).

4. The adjustable coal mine excavation support equipment according to claim 2, characterized in that: Reinforcement ribs for improving the structural strength of the swing lever (16) are installed on the side wall of the swing lever (16).

5. The adjustable coal mine excavation support equipment according to claim 2, characterized in that: The fixing mechanism comprises a telescopic frame (14) and a plurality of fixing rods (12). The telescopic frame (14) is horizontally mounted on the lower end of the protective box (1). A fixing block (11) is mounted on the lower end of the first hydraulic telescopic rod (2) on the first moving block (10). A telescopic plate (13) is mounted on the side wall of the fixing block (11) close to the telescopic frame (14). The telescopic plate (13) is slidably connected to the inner wall of the telescopic frame (14). A through hole (23) is provided on both the fixing block (11) and the telescopic frame (14). The fixing rod (12) passes through the through hole (23) to fix the fixing block (11) and the telescopic frame (14) on the ground.

6. The adjustable coal mine excavation support equipment according to claim 2, characterized in that: The expansion mechanism includes a second support frame (7), an arc-shaped cross slot (25) is provided on the arc-shaped limit frame (4), an arc-shaped cross slide (26) is slidably connected to the inner wall of the arc-shaped cross slide (25), the second support frame (7) is installed on the upper end of one of the arc-shaped cross slides (26), the second support frame (7) and the first support frame (6) are arranged on the same side, a second support plate (8) is slidably connected to the inner wall of the second support frame (7), and the second support plate (8) passes through the second support frame (7). A first connecting block (9) is installed on the side wall of the support frame (7), and the first connecting block (9) is installed at the upper end of an arc-shaped cross slider (26) away from the side of the second support frame (7). A second motor (28) is installed at the lower end of the arc-shaped cross slider (26) where the second support frame (7) is located. The second motor (28) is arranged at one end of the arc-shaped cross slider (26) close to the mounting block (3), and a friction roller (27) rolling along the lower end of the first support frame (6) is installed at the output end of the second motor (28).

7. The adjustable coal mine excavation support equipment according to claim 1, characterized in that: A pulling rod for pulling the mounting block (3) is installed on the side wall of the output end of the first hydraulic telescopic rod (2) away from the arc-shaped limit frame (4), and the upper end of the pulling rod is installed on the side wall of the mounting block (3).

8. The adjustable coal mine excavation support equipment according to claim 6, characterized in that: The friction roller (27) is replaced by a gear, and a rack used in conjunction with the gear is installed at the lower end of the first support frame (6).

9. The adjustable coal mine excavation support equipment according to claim 5, characterized in that: The lower end of the telescopic frame (14) is provided with a movable roller for facilitating the movement of the entire device by the staff.

10. The adjustable coal mine excavation support equipment according to claim 6, characterized in that: When the second support frame (7) and the first connecting block (9) are extended over a long distance, a second hydraulic telescopic rod (29) for supporting the second support frame (7) and the first connecting block (9) is vertically arranged at one end of the second support frame (7) away from the protective box (1), and a connecting support block (30) is installed at the output end of the second hydraulic telescopic rod (29) and is butt-connected to one end of the second support frame (7) and the first connecting block (9) away from the protective box (1).

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