Temporary supporting device for coal mining operation

Abstract

The utility model relates to the technical field of coal mining operation, in particular to a temporary supporting device for coal mining operation, which comprises a base and a supporting component arranged on the base, an annular supporting seat is fixedly mounted at the top of the base, and four threaded sleeves are rotatably connected to the top of the base. The lifting device has the advantages that the base, the supporting assembly, the annular supporting base, the threaded sleeve, the rotating base, the first gear ring, the second gear ring, the first gear, the lifting screw rod, the lifting wheel structures, the rotating shaft and the second gear are matched, the multiple lifting wheel structures can be driven at a time to conduct lifting operation, and therefore adjustment is easier and more convenient; through cooperation of the limiting sliding grooves, the limiting sliding blocks, the connecting seats, the guiding sliding grooves, the adjusting screw rods, the connecting plates, the auxiliary supporting plates, the positioning holes, the auxiliary plates and the positioning bolts, the base can effectively support the uneven position of the mine ground, and therefore the supporting device is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining operations, in particular to a temporary supporting device for coal mining operations. Background Art

[0002] Temporary support devices in coal mining operations are mainly used to provide temporary support and protection for tunnels or working areas during the mining process to ensure the safety of mining operations. The main function of these devices is to prevent the occurrence of dangerous situations such as deformation, collapse or settlement of tunnels or working areas due to geological conditions, mining activities, etc.

[0003] The Chinese utility model application number is CN202223394031.9, in particular, it is a temporary support device for coal mining operations, including two bases, on which a support assembly is also installed, and the support assembly includes a fixed block, a first screw, a first bevel gear, a second bevel gear, a rotating shaft, a sleeve, a top plate, a second screw, a support block and a second slide rod. Through this support assembly, users can support irregular top positions, thereby improving the support effect and reducing safety hazards. In conjunction with the moving assembly, the movement of the support assembly can be facilitated, thereby improving the convenience of using the support assembly. However, the device still has some shortcomings during use: the device supports the support assembly by rotating the third screw to drive the moving wheel to move, thereby facilitating movement, but the operation is more cumbersome during adjustment operations, which makes it more troublesome when the support assembly needs to be moved. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] Therefore, one purpose of the utility model is to provide a temporary support device for coal mining operations to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides a temporary support device for coal mining operations, including a base and a support assembly arranged on the base, the top of the base is fixedly installed with an annular support seat, the top of the base is rotatably connected with four threaded sleeves, the top of the annular support seat is rotatably connected with a rotating seat, the outer wall of the rotating seat is fixedly installed with a first gear ring, the inner wall of the rotating seat is fixedly installed with a second gear ring, the surface of the threaded sleeve is fixedly installed with a first gear meshing with the second gear ring, the internal thread of the threaded sleeve is connected with a lifting screw, one end of the lifting screw is rotatably connected with a lifting wheel structure, and the base A rotating shaft is provided at the top, and a second gear meshing with the first gear ring is fixedly installed on the surface of the rotating shaft. The technical effect achieved by the above scheme is: the second gear is rotated by rotating the rotating shaft, and the meshing of the second gear and the first gear ring drives the rotating seat to rotate. At the same time, the meshing of the second gear ring and the first gear causes the threaded sleeve to rotate, and then the rotation of the threaded sleeve drives the lifting screw to lift and lower, thereby adjusting the height of the lifting wheel to contact or separate with the ground, and can drive multiple lifting wheel structures to perform lifting operations at one time, thereby making the adjustment easier and simpler, and the top of the coal mine cave is supported by adjusting the support assembly.

[0007] Preferably, any of the above schemes is that the lifting wheel structure includes a base plate, the base plate is rotatably connected to the lifting screw, a universal wheel is fixedly installed on the bottom of the base plate, and a guide rod penetrating the base is fixedly installed on the top of the base plate. The technical effect achieved by adopting the above scheme is that the universal wheel can be brought into contact with or separated from the ground of the coal mine by lifting and lowering the lifting wheel structure.

[0008] Preferably, any of the above schemes is that a bracket and an axle seat are fixedly installed on the top of the base, the bracket is U-shaped, the middle part of the bracket is rotatably connected to a rotating shaft, and the middle part of the axle seat is provided with a rotating shaft. The technical effect achieved by adopting the above scheme is that the position of the rotating shaft can be positioned by the bracket, so that the rotating shaft can rotate stably.

[0009] Preferably, any of the above schemes is that a limit slide groove is provided on the surface of the base, the limit slide groove is internally slidably connected to the limit slider, one side of the limit slider is fixedly connected to a connecting seat, one side of the connecting seat is provided with a guide slide groove, the guide slide groove is internally rotatably connected to an adjusting screw, the surface of the adjusting screw is threadedly connected to a connecting plate, and the bottom of the connecting plate is fixedly connected to an auxiliary support plate. The technical effect achieved by adopting the above scheme is: by pushing the connecting seat, the limit slide groove slides inside the limit slide groove, thereby adjusting the auxiliary support plate to the uneven ground of the coal mine, and then rotating the adjusting screw to make the auxiliary support plate descend to support the base, so that the base can perform supporting operations more stably.

[0010] Preferably, any of the above schemes is provided with a positioning hole in the middle of the auxiliary support plate, and a non-slip pad is provided at the bottom of the auxiliary support plate. The technical effect achieved by adopting the above scheme is that the positioning nail can be inserted into the interior of the coal mine through the positioning hole, thereby making the connection between the base and the ground more stable.

[0011] Preferably, any of the above schemes has an auxiliary plate fixedly connected to one side of the connecting seat, and a positioning bolt is provided on the surface of the auxiliary plate. The technical effect achieved by adopting the above scheme is that the connection between the connecting seat and the base can be more stably connected by the positioning bolt.

[0012] Preferably, any of the above schemes has one end of the adjusting screw passing through the connecting seat, and an adjusting handle is fixedly mounted on one end of the adjusting screw. The technical effect achieved by adopting the above scheme is that the adjusting screw can be conveniently operated to rotate by the adjusting handle.

[0013] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0014] 1. This temporary support device for coal mining operations can drive multiple lifting wheel structures to perform lifting operations at one time through the cooperation between the base, the support assembly, the annular support seat, the threaded sleeve, the rotating seat, the first gear ring, the second gear ring, the first gear, the lifting screw, the lifting wheel structure, the rotating shaft and the second gear, thereby making the adjustment easier and more convenient.

[0015] 2. This temporary support device for coal mining operations can effectively support the base on uneven ground in the mine through the cooperation between the limit slide, the limit slider, the connecting seat, the guide slide, the adjusting screw, the connecting plate, the auxiliary support plate, the positioning hole, the auxiliary plate and the positioning bolt, thereby making the support device more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the first perspective of the embodiment of the utility model;

[0017] Figure 2 This is the first embodiment of the utility model Figure 1 A schematic diagram of the structure at A;

[0018] Figure 3 This is a schematic diagram of the structure of the first embodiment of the utility model from a second viewing angle;

[0019] Figure 4 This is the first embodiment of the utility model Figure 3 Schematic diagram of the structure at point B.

[0020] Wherein: 1-base, 2-support assembly, 3-annular support seat, 4-threaded sleeve, 5-rotating seat, 6-first gear ring, 7-second gear ring, 8-first gear, 9-lifting screw, 10-lifting wheel structure, 11-rotating shaft, 12-second gear, 13-bracket, 14-limiting slide groove, 15-limiting slider, 16-connecting seat, 17-guide slide groove, 18-adjusting screw, 19-connecting plate, 20-auxiliary support plate, 21-positioning hole, 22-auxiliary plate, 23-positioning bolt, 24-adjusting handle. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0022] Embodiment 1: Figures 1 to 4 As shown, a temporary support device for coal mining operations includes a base 1 and a support assembly 2 arranged on the base 1, an annular support seat 3 is fixedly installed on the top of the base 1, four threaded sleeves 4 are rotatably connected to the top of the base 1, a rotating seat 5 is rotatably connected to the top of the annular support seat 3, a first gear ring 6 is fixedly installed on the outer wall of the rotating seat 5, a second gear ring 7 is fixedly installed on the inner wall of the rotating seat 5, a first gear 8 meshing with the second gear ring 7 is fixedly installed on the surface of the threaded sleeve 4, a lifting screw 9 is connected to the inner thread of the threaded sleeve 4, one end of the lifting screw 9 is rotatably connected to a lifting wheel structure 10, a rotating shaft 11 is arranged on the top of the base 1, and the rotating shaft 12 is arranged on the top of the base 1. A second gear 12 meshing with the first gear ring 6 is fixedly mounted on the surface of the shaft 11. The second gear 12 is rotated by rotating the rotating shaft 11, and the meshing of the second gear 12 with the first gear ring 6 drives the rotating seat 5 to rotate. At the same time, the meshing of the second gear ring 7 with the first gear 8 causes the threaded sleeve 4 to rotate. Then, the rotation of the threaded sleeve 4 drives the lifting screw 9 to lift and lower, thereby adjusting the height of the lifting wheel 10 to contact or separate from the ground. It can drive multiple lifting wheel structures 10 to perform lifting operations at one time, making the adjustment easier and simpler. The top of the coal mine cave is supported by adjusting the support assembly 2.

[0023] As an optional technical solution of the utility model, the lifting wheel structure 10 includes a base plate, which is rotatably connected to the lifting screw 9, a universal wheel is fixedly installed at the bottom of the base plate, and a guide rod passing through the base is fixedly installed at the top of the base plate. The lifting and lowering of the lifting wheel structure 10 can make the universal wheel contact or separate from the ground of the coal mine.

[0024] As an optional technical solution of the present utility model, a bracket 13 and an axle seat are fixedly installed on the top of the base 1. The bracket 13 is U-shaped. The middle part of the bracket 13 is rotatably connected to the rotating shaft 11. The middle part of the axle seat is provided with the rotating shaft 11. The position of the rotating shaft 11 can be positioned through the bracket 13, so that the rotating shaft 11 can rotate stably.

[0025] As an optional technical solution of the present invention, a limiting slide groove 14 is provided on the surface of the base 1, and the limiting slide groove 14 is internally slidably connected to a limiting slider 15, and one side of the limiting slider 15 is fixedly connected to a connecting seat 16, and one side of the connecting seat 16 is provided with a guide slide groove 17, and the inside of the guide slide groove 17 is rotatably connected to an adjusting screw 18, and the surface of the adjusting screw 18 is threadedly connected to a connecting plate 19, and the bottom of the connecting plate 19 is fixedly connected to an auxiliary support plate 20, and the connecting seat 16 is pushed to make the limiting slider 15 slide inside the limiting slide groove 14, so as to adjust the auxiliary support plate 20 to the uneven ground of the coal mine, and then the adjusting screw 18 is rotated to make the auxiliary support plate 20 descend to support the base 1, so that the base 1 can perform the supporting operation more stably.

[0026] As an optional technical solution of the present invention, a positioning hole 21 is opened in the middle of the auxiliary support plate 20, and an anti-slip pad is provided at the bottom of the auxiliary support plate 20. The positioning nail can be inserted into the interior of the coal mine through the positioning hole 21, so that the connection between the base 1 and the ground can be more stably achieved.

[0027] As an optional technical solution of the present invention, an auxiliary plate 22 is fixedly connected to one side of the connecting seat 16, and a positioning bolt 23 is provided on the surface of the auxiliary plate 22. The positioning bolt 23 can make the connection between the connecting seat 16 and the base 1 more stable.

[0028] As an optional technical solution of the present invention, one end of the adjusting screw 18 penetrates the connecting seat 16 , and an adjusting handle 24 is fixedly mounted on one end of the adjusting screw 18 , and the adjusting handle 24 can be used to conveniently operate the adjusting screw 18 for rotation.

[0029] A temporary support device for coal mining operations, the working principle of which is as follows: the second gear 12 is rotated by rotating the rotating shaft 11, and the second gear 12 is meshed with the first gear ring 6 to drive the rotating seat 5 to rotate, and at the same time the meshing of the second gear ring 7 and the first gear 8 causes the threaded sleeve 4 to rotate, and then the rotation of the threaded sleeve 4 drives the lifting screw 9 to lift, thereby adjusting the height of the lifting wheel 10 to contact or separate with the ground, and can drive multiple lifting wheel structures 10 to perform lifting operations at one time, making the adjustment easier and simpler.

[0030] To sum up, the temporary support device for coal mining operations, through the cooperation among the base 1, the support assembly 2, the annular support seat 3, the threaded sleeve 4, the rotating seat 5, the first gear ring 6, the second gear ring 7, the first gear 8, the lifting screw 9, the lifting wheel structure 10, the rotating shaft 11 and the second gear 12, can drive multiple lifting wheel structures 10 to perform lifting operations at one time, thereby making the adjustment easier and simpler. Through the cooperation among the limiting slide groove 14, the limiting slider 15, the connecting seat 16, the guide slide groove 17, the adjusting screw 18, the connecting plate 19, the auxiliary support plate 20, the positioning hole 21, the auxiliary plate 22 and the positioning bolt 23, the base 1 can be effectively supported on the uneven ground of the mine, thereby making the supporting device more stable.

[0031] Embodiment 2 is a temporary support device for coal mining operations. Based on the above embodiment, this embodiment sets a cylinder on the top of the base 1, and a lifting wheel structure 10 is fixedly installed on one end of the cylinder output shaft. The lifting wheel structure 10 is driven to lift and lower by the cylinder operation, which can make the adjustment easier and more stable.

Claims

1. A temporary support device for coal mining operations, comprising a base (1) and a support assembly (2) arranged on the base (1), Features: An annular support seat (3) is fixedly mounted on the top of the base (1); four threaded sleeves (4) are rotatably connected to the top of the base (1); a rotating seat (5) is rotatably connected to the top of the annular support seat (3); a first gear ring (6) is fixedly mounted on the outer wall of the rotating seat (5); a second gear ring (7) is fixedly mounted on the inner wall of the rotating seat (5); a first gear (8) meshing with the second gear ring (7) is fixedly mounted on the surface of the threaded sleeve (4); a lifting screw (9) is connected to the inner thread of the threaded sleeve (4); one end of the lifting screw (9) is rotatably connected to a lifting wheel structure (10); a rotating shaft (11) is arranged on the top of the base (1); a second gear (12) meshing with the first gear ring (6) is fixedly mounted on the surface of the rotating shaft (11).

2. A temporary support device for coal mining operations according to claim 1, Features: The lifting wheel structure (10) comprises a bottom plate, the bottom plate is rotatably connected to the lifting screw rod (9), a universal wheel is fixedly mounted on the bottom of the bottom plate, and a guide rod penetrating the base is fixedly mounted on the top of the bottom plate.

3. A temporary support device for coal mining operations according to claim 2, Features: A bracket (13) and an axle seat are fixedly mounted on the top of the base (1); the bracket (13) is in a U-shape; a rotating shaft is rotatably connected to the middle of the bracket (13); and a rotating shaft is arranged in the middle of the axle seat.

4. A temporary support device for coal mining operations according to claim 3, Features: A limit slide groove (14) is provided on the surface of the base (1), the limit slide groove (14) is internally slidably connected to a limit slider (15), one side of the limit slider (15) is fixedly connected to a connecting seat (16), one side of the connecting seat (16) is provided with a guide slide groove (17), the inside of the guide slide groove (17) is rotatably connected to an adjusting screw (18), the surface of the adjusting screw (18) is threadedly connected to a connecting plate (19), and the bottom of the connecting plate (19) is fixedly connected to an auxiliary support plate (20).

5. A temporary support device for coal mining operations according to claim 4, Features: A positioning hole (21) is provided in the middle of the auxiliary support plate (20), and an anti-slip pad is provided at the bottom of the auxiliary support plate (20).

6. A temporary support device for coal mining operations according to claim 5, Features: An auxiliary plate (22) is fixedly connected to one side of the connection seat (16), and a positioning bolt (23) is provided on the surface of the auxiliary plate (22).

7. A temporary support device for coal mining operations according to claim 6, Features: One end of the adjusting screw rod (18) penetrates the connecting seat (16), and one end of the adjusting screw rod (18) is fixedly mounted with an adjusting handle (24).

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