Supporting device for coal mine tunnel roof

Abstract

The utility model discloses a supporting device for a coal mine tunnel roof, which comprises a base, a first rotating shaft is rotatably connected in the base, the outer surface of the first rotating shaft is fixedly connected with a first gear, and the supporting device for the coal mine tunnel roof drives the first rotating shaft to rotate through an external power supply of a controller. The first rotating shaft drives a first gear to rotate, the first gear drives a second gear to rotate, the second gear drives a second rotating shaft to rotate, the second rotating shaft drives a third gear to rotate, and the third gear drives a fourth gear to rotate, so that a reverse threaded rod can rotate, and an extension plate in threaded connection with the reverse threaded rod can be driven to horizontally move; the transverse distance of the extension plate can be adjusted according to the diameter and width of a coal mine tunnel, the screw is embedded into the underground of the coal mine tunnel by rotating the screw, so that the supporting effect of the device can be improved, the device can be prevented from sliding or inclining, and supporting points can be increased through the screw to ensure the safety and stability of a tunnel top plate.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine tunnels, in particular to a supporting device for a roof of a coal mine tunnel. Background Art

[0002] Coal mine tunnels are the main channels for material transportation and personnel entry and exit during coal mining. Their safety and stability are very important, so support treatment is required. During coal mining, the safety and stability of the tunnel roof is the key to ensuring the safety of workers' lives and smooth production.

[0003] However, due to the complex and changeable geological conditions, the tunnel roof often deforms to varying degrees, resulting in failure of the supporting structure or poor supporting effect. Currently, most of the supporting devices on the market are static supports, which cannot be adaptively adjusted according to the deformation of the roof, posing a safety hazard. For this reason, we propose a supporting device for the roof of coal mine tunnels. Utility Model Content

[0004] The purpose of the utility model is to provide a supporting device for the roof of a coal mine tunnel, so as to solve the problem raised in the above-mentioned background technology that due to the complex and changeable geological conditions, the roof of the tunnel often undergoes deformation to varying degrees, resulting in failure of the supporting structure or poor supporting effect. At present, most of the supporting devices on the market are static supports, which cannot be adaptively adjusted according to the deformation of the roof, and there are safety hazards.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a supporting device for the roof of a coal mine tunnel, comprising a base, a first rotating shaft rotatably connected inside the base, a first gear fixedly connected to the outer surface of the first rotating shaft, a second gear meshingly connected to one side of the first gear, a second rotating shaft fixedly connected to one side of the second gear, a third gear fixedly connected to the other end of the second rotating shaft, a fourth gear meshingly connected to the outer surface of the third gear, a reverse threaded rod fixedly connected to the middle of the fourth gear, an extension plate threadedly connected to the outer surface of the reverse threaded rod, and the extension plate penetrates and slides to one side of the base, and a screw is threadedly connected to the middle of the extension plate.

[0006] Preferably, a controller is fixedly connected to one side of the base, two groups of telescopic support columns are fixedly installed above the base, a pressure sensor is fixedly connected to one side of the telescopic support column, and an upper top seat is fixedly connected to the top of the telescopic support column.

[0007] Preferably, one side of the upper top seat is fixedly connected to the first movable seat, and one side of the upper top seat is movably connected to the first movable seat with a side support plate.

[0008] Preferably, the bottom front side of the side support plate is fixedly connected to a second movable seat, one side of the upper top seat is fixedly connected to a third movable seat, the middle part of the third movable seat is movably connected to a first electric push rod, and the other end of the first electric push rod is movably connected to the second movable seat.

[0009] Preferably, the front end of the upper top seat is fixedly connected to the fourth movable seat, the front end of the upper top seat is provided with a front support plate, and the front support plate is movably connected to the fourth movable seat.

[0010] Preferably, the front end surface of the upper top seat is fixedly connected to a fifth movable seat, the middle part of the fifth movable seat is movably connected to a second electric push rod, the output end of the second electric push rod is movably connected to a sixth movable seat, and the upper end of the sixth movable seat is fixedly connected to the bottom of the front support plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The support device for the roof of a coal mine tunnel drives the first shaft to rotate through an external power supply of a controller, the first shaft drives the first gear to rotate, the first gear drives the second gear to rotate, the second gear drives the second shaft to rotate, the second shaft drives the third gear to rotate, and the third gear drives the fourth gear to rotate, so that the reverse threaded rod can be rotated, thereby driving the extension plate threadedly connected to the reverse threaded rod to move horizontally, so that the lateral distance of the extension plate can be adjusted according to the diameter width of the coal mine tunnel, and then the screw is rotated to embed the screw into the ground of the coal mine tunnel, so as to increase the support effect of the device, prevent it from sliding or tilting, and increase the support points through the screws to ensure the safety and stability of the tunnel roof. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the front support plate and the side support plate of the utility model;

[0015] Figure 3 This is a schematic diagram of the stable support structure of the extension plate of the utility model.

[0016] In the figure: 1. base; 2. controller; 3. telescopic support column; 4. pressure sensor; 5. upper seat; 6. first movable seat; 7. side support plate; 8. second movable seat; 9. third movable seat; 10. first electric push rod; 11. fourth movable seat; 12. front support plate; 13. fifth movable seat; 14. second electric push rod; 15. sixth movable seat; 16. first rotating shaft; 17. first gear; 18. second gear; 19. second rotating shaft; 20. third gear; 21. fourth gear; 22. reverse threaded rod; 23. extension plate; 24. screw. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-3 The utility model provides a technical solution: a supporting device for the roof of a coal mine tunnel, comprising a base 1, a first rotating shaft 16 is rotatably connected inside the base 1, a first gear 17 is fixedly connected to the outer surface of the first rotating shaft 16, a second gear 18 is meshedly connected to one side of the first gear 17, a second rotating shaft 19 is fixedly connected to one side of the second gear 18, a third gear 20 is fixedly connected to the other end of the second rotating shaft 19, a fourth gear 21 is meshedly connected to the outer surface of the third gear 20, a reverse threaded rod 22 is fixedly connected to the middle of the fourth gear 21, an extension plate 23 is threadedly connected to the outer surface of the reverse threaded rod 22, and the extension plate 23 penetrates and is slidably connected to one side of the base 1, and a screw 24 is threadedly connected to the middle of the extension plate 23.

[0019] The first rotating shaft 16 is driven to rotate by an external power supply of the controller 2, the first rotating shaft 16 drives the first gear 17 to rotate, the first gear 17 drives the second gear 18 to rotate, the second gear 18 drives the second rotating shaft 19 to rotate, the second rotating shaft 19 drives the third gear 20 to rotate, and the third gear 20 drives the fourth gear 21 to rotate, so that the reverse threaded rod 22 can be rotated, thereby driving the extension plate 23 threadedly connected to the reverse threaded rod 22 to move horizontally, so that the lateral distance of the extension plate 23 can be adjusted according to the diameter width of the coal mine tunnel, and then by rotating the screw 24, the screw 24 is embedded in the underground of the coal mine tunnel, so as to increase the supporting effect of the device and prevent it from sliding or tilting. The support point can be increased by the screw 24 to ensure the safety and stability of the tunnel roof.

[0020] Furthermore, a controller 2 is fixedly connected to one side of the base 1, two groups of telescopic support columns 3 are fixedly installed above the base 1, a pressure sensor 4 is fixedly connected to one side of the telescopic support column 3, and an upper top seat 5 is fixedly connected to the top of the telescopic support column 3. The telescopic support column 3 drives the upper top seat 5 to be electrically lifted and lowered, and a pressure sensor 4 is installed on the telescopic support column 3, which can be used to monitor the pressure changes of the upper top seat 5 in real time and transmit the pressure data to the controller 2, so that the supporting force of the telescopic support column 3 is automatically adjusted by the controller 2, thereby achieving a stable support effect.

[0021] Furthermore, one side of the upper top seat 5 is fixedly connected to the first movable seat 6, and one side of the upper top seat 5 is movably connected to the first movable seat 6 with a side support plate 7. The side support plates 7 are installed on the left and right sides of the upper top seat 5. The side support plates 7 can be adjusted according to the area of ​​the tunnel roof, thereby increasing the applicability of the support device and improving the supporting effect.

[0022] Furthermore, a second movable seat 8 is fixedly connected to the bottom front side of the side support plate 7, a third movable seat 9 is fixedly connected to one side of the upper seat 5, a first electric push rod 10 is movably connected to the middle of the third movable seat 9, and the other end of the first electric push rod 10 is movably connected to the second movable seat 8. The side support plate 7 is pushed by the first electric push rod 10 for movable adjustment, and the unfolding angle of the side support plate 7 can be adjusted according to the width of the alley so as to achieve a strong supporting effect. After completion, the side support plate 7 is folded by the first electric push rod 10 to save space during transportation and storage.

[0023] Furthermore, the front end of the upper top seat 5 is fixedly connected to the fourth movable seat 11, and the front end of the upper top seat 5 is provided with a front support plate 12, and the front support plate 12 is movably connected to the fourth movable seat 11. By adding the front support plate 12 at the front and rear ends of the upper top seat 5, the front support plate 12 is movably connected to the upper top seat 5 through the fourth movable seat 11, and the front and rear support areas of the device can be increased through the front support plate 12, thereby improving the bearing capacity and stability of the supporting device.

[0024] Furthermore, the front end surface of the upper top seat 5 is fixedly connected to a fifth movable seat 13, the middle part of the fifth movable seat 13 is movably connected to a second electric push rod 14, the output end of the second electric push rod 14 is movably connected to a sixth movable seat 15, and the upper end of the sixth movable seat 15 is fixedly connected to the bottom of the front support plate 12, and the front support plate 12 is pushed by the second electric push rod 14 to adjust the angle along the fourth movable seat 11, and after the support is completed, the front support plate 12 is folded to the front and rear sides of the upper top seat 5 by the second electric push rod 14, thereby saving space during transportation and storage and improving utilization efficiency.

[0025] Working principle: For this type of support device for the roof of a coal mine tunnel, the telescopic support column 3 drives the upper seat 5 to be electrically lifted and lowered, so that the top of the upper seat 5 is fitted and connected with the tunnel roof, and a pressure sensor 4 is installed on the telescopic support column 3. The pressure sensor 4 can monitor the pressure change of the upper seat 5 in real time and transmit the pressure data to the controller 2, and then the controller 2 automatically adjusts the supporting force of the telescopic support column 3 to achieve a stable support effect, and then according to the width of the tunnel, the controller 2 is connected to an external power supply to drive the first shaft 16 to rotate, the first shaft 16 drives the first gear 17 to rotate, the first gear 17 drives the second gear 18 to rotate, the second gear 18 drives the second shaft 19 to rotate, the second shaft 19 drives the third gear 20 to rotate, and the third gear 20 drives the third gear 20 to rotate. The third gear 20 drives the fourth gear 21 to rotate, which can make the reverse threaded rod 22 rotate, thereby driving the extension plate 23 threadedly connected to the reverse threaded rod 22 to move horizontally, so that the lateral distance of the extension plate 23 can be adjusted according to the diameter width of the coal mine tunnel, and then by rotating the screw 24, the screw 24 is embedded in the ground of the coal mine tunnel, so as to increase the supporting effect of the device and prevent it from sliding or tilting, and add a front support plate 12 and a side support plate 7 to the front, back, left and right of the upper top seat 5, which can be used to increase the supporting area of ​​the tunnel roof, and under the action of the first electric push rod 10 and the second electric push rod 14, the front support plate 12 and the side support plate 7 can be unfolded and folded, which is convenient for saving space during transportation and storage and improving utilization efficiency.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A supporting device for a roof of a coal mine tunnel, comprising a base (1), characterized in that: The base (1) is rotatably connected to a first rotating shaft (16), an outer surface of the first rotating shaft (16) is fixedly connected to a first gear (17), one side of the first gear (17) is meshedly connected to a second gear (18), one side of the second gear (18) is fixedly connected to a second rotating shaft (19), the other end of the second rotating shaft (19) is fixedly connected to a third gear (20), an outer surface of the third gear (20) is meshedly connected to a fourth gear (21), a middle portion of the fourth gear (21) is fixedly connected to a reverse threaded rod (22), an outer surface of the reverse threaded rod (22) is threadedly connected to an extension plate (23), and the extension plate (23) penetrates and is slidably connected to one side of the base (1), and a screw (24) is threadedly connected to the middle portion of the extension plate (23).

2. A supporting device for a coal mine tunnel roof according to claim 1, characterized in that: A controller (2) is fixedly connected to one side of the base (1), two groups of telescopic support columns (3) are fixedly installed above the base (1), a pressure sensor (4) is fixedly connected to one side of the telescopic support column (3), and an upper top seat (5) is fixedly connected to the top of the telescopic support column (3).

3. A supporting device for a coal mine tunnel roof according to claim 2, characterized in that: One side of the upper top seat (5) is fixedly connected to a first movable seat (6), and one side of the upper top seat (5) is movably connected to the first movable seat (6) and a side support plate (7) is provided.

4. A supporting device for a coal mine tunnel roof according to claim 3, characterized in that: A second movable seat (8) is fixedly connected to the front side of the bottom of the side support plate (7), a third movable seat (9) is fixedly connected to one side of the upper seat (5), a first electric push rod (10) is movably connected to the middle of the third movable seat (9), and the other end of the first electric push rod (10) is movably connected to the second movable seat (8).

5. A supporting device for a coal mine tunnel roof according to claim 2, characterized in that: The front end of the upper top seat (5) is fixedly connected to a fourth movable seat (11), the front end of the upper top seat (5) is provided with a front support plate (12), and the front support plate (12) is movably connected to the fourth movable seat (11).

6. A supporting device for a coal mine tunnel roof according to claim 5, characterized in that: The front end surface of the upper top seat (5) is fixedly connected to a fifth movable seat (13), the middle part of the fifth movable seat (13) is movably connected to a second electric push rod (14), the output end of the second electric push rod (14) is movably connected to a sixth movable seat (15), and the upper end of the sixth movable seat (15) is fixedly connected to the bottom of the front support plate (12).

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