Mine hole supporting and fixing structure

Abstract

The utility model discloses a mine hole supporting and fixing structure, which relates to the technical field of mine hole supporting equipment and comprises a cross beam and a hydraulic telescopic supporting rod, supporting frames are sleeved at two ends of the cross beam in a sliding manner, triangular plates are fixedly mounted at right-angle positions of the two supporting frames, and two threaded sleeves distributed in a mirror image manner are clamped in the cross beam in a sliding manner. According to the utility model, according to the width of a mine hole, the worm gear is utilized to drive the bidirectional lead screw to rotate, the bidirectional lead screw drives the two threaded sleeves to move away from each other, and the two threaded sleeves are driven to move away from each other, so that the two threaded sleeves are driven to move away from each other, and the two threaded sleeves are driven to move away from each other. And the ends, away from each other, of the two supporting frames make contact with the inner walls of the two sides of the mine hole correspondingly, so that the purpose that the length of the supporting cross beam can be adjusted according to the widths of different mine holes is achieved, the tops of the mine holes with different widths are conveniently supported, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mine tunnel support equipment, in particular to a mine tunnel support fixing structure. Background Technique

[0002] A coal mine is an area where humans extract coal resources in coal-rich mining areas. Generally, it is divided into underground coal mines and surface coal mines. When the coal seam is far from the surface, generally, tunnels are dug underground to extract coal, which is an underground coal mine. When the distance between the coal seam and the surface is very close, generally, the surface soil layer is directly stripped to excavate coal, which is a surface coal mine. Most coal mines in China are underground coal mines. The scope of a coal mine includes a large area above and below the ground and related facilities. When mining and constructing in a mine tunnel, a mine tunnel support fixing structure is needed to support and protect the mine tunnel.

[0003] Most of the existing combined structures of mine tunnel support crossbeams are of fixed length and cannot be adjusted according to the widths of different mine tunnels, which is not convenient for supporting the tops of mine tunnels with different widths, resulting in low practicability of the equipment. In view of the above problems, the inventor proposes a mine tunnel support fixing structure to solve the above problems. Content of the Utility Model

[0004] In order to solve the problem that some existing combined structures of mine tunnel support crossbeams are not convenient for supporting the tops of mine tunnels with different widths, resulting in low practicability of the equipment; the purpose of the utility model is to provide a mine tunnel support fixing structure.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: A mine tunnel support fixing structure includes a crossbeam and hydraulic telescopic support rods. Both ends of the crossbeam are slidably sleeved with support frames, and the two support frames are arranged in a mirror image. Triangular plates are fixedly installed at the right angles of the two support frames. Two mirror-image distributed threaded sleeves are slidably clamped in the crossbeam, and one end of each threaded sleeve is fixedly connected to one end of the cavity of the corresponding support frame. A bidirectional lead screw is rotatably installed in the crossbeam, and the bidirectional lead screw is threadedly inserted into the two threaded sleeves. A worm gear is fixedly installed in the middle of the bidirectional lead screw.

[0006] Preferably, a worm is rotatably installed in the middle of the crossbeam, and the worm meshes with the worm gear. A forward and reverse motor is fixedly installed on one side of the middle of the crossbeam, and the output end of the forward and reverse motor is fixedly connected to one end of the worm.

[0007] Preferably, hydraulic telescopic support rods are fixedly installed at the bottom ends of the two support frames, support feet are fixedly installed at the bottom ends of the two hydraulic telescopic support rods, fixed ears are fixedly installed on both sides of the two ends of the two support frames away from each other, and mounting holes are formed in the four fixed ears and the two support feet.

[0008] Preferably, fixing blocks are fixedly installed on one side of the middle part of the cross beam and one side of the two support frames. Threaded rods are inserted into the three fixing blocks. Rotating handles are fixedly installed at the bottom ends of the three threaded rods. The top ends of the three threaded rods are rotatably installed with fixing plates. The upper surfaces of the three fixing plates are hinged with top plates. Two symmetrically distributed telescopic rods are inserted into the three fixing blocks, and the top ends of the telescopic rods are fixedly connected to the lower surfaces of the corresponding fixing plates.

[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0010] 1. In the present utility model, according to the width of the mine tunnel, the worm is used to drive the bidirectional lead screw to rotate. The bidirectional lead screw drives the two threaded sleeves to move away from each other. The two threaded sleeves drive the two support frames to slide away from each other along the cross beam to adjust the position, so that the mutually separated ends of the two support frames are respectively in contact with the inner walls on both sides of the mine tunnel, thereby achieving the purpose of adjusting the length of the support cross beam according to the widths of different mine tunnels, facilitating the support of the tops of mine tunnels with different widths, and improving the practicability of the device;

[0011] 2. In the present utility model, since the top of the mine tunnel is mostly an irregular shape with unevenness, and the flat support cross beam cannot completely support the top of the mine tunnel. According to the height of the top of the mine tunnel, rotate the rotating handle to drive the threaded rod to screw up and down in the fixing block, and the threaded rod drives the top plate to support the top of the mine tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0013] Figure 1 It is a schematic front view structure of the whole of the present utility model;

[0014] Figure 2 It is a schematic rear view structure of the whole of the present utility model;

[0015] Figure 3 It is a schematic cross-sectional structure of the cross beam and the support frame of the present utility model;

[0016] Figure 4 It is a schematic structure diagram of the top plate of the present utility model.

[0017] In the figure: 1, crossbeam; 2, support frame; 3, hydraulic telescopic support rod; 4, support foot; 5, fixed ear; 6, forward and reverse motor; 7, threaded rod; 8, top plate; 9, telescopic rod; 10, turning handle; 11, threaded sleeve; 12, bidirectional lead screw; 13, worm gear; 14, worm; 15, fixed block; 16, fixed plate. Specific implementation mode

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0019] Embodiment: As Figures 1-4 shown, the present invention provides a mine tunnel support and fixation structure, including a crossbeam 1 and a hydraulic telescopic support rod 3. Both ends of the crossbeam 1 are slidably sleeved with support frames 2, and the two support frames 2 are arranged in a mirror image. Triangular plates are fixedly installed at the right angles of the two support frames 2. Two mirror-image distributed threaded sleeves 11 are slidably clamped in the crossbeam 1, and one end of the threaded sleeve 11 is fixedly connected to one end of the cavity of the corresponding support frame 2. A bidirectional lead screw 12 is rotatably installed in the crossbeam 1, and the bidirectional lead screw 12 is threadedly inserted into the two threaded sleeves 11. A worm gear 13 is fixedly installed in the middle of the bidirectional lead screw 12. First, according to the width of the mine tunnel, the worm gear 13 is used to drive the bidirectional lead screw 12 to rotate. The bidirectional lead screw 12 drives the two threaded sleeves 11 to move away from each other. The two threaded sleeves 11 drive the two support frames 2 to slide away from each other along the crossbeam 1 to adjust the position, so that the mutually separated ends of the two support frames 2 are respectively in contact with the inner walls on both sides of the mine tunnel, thus achieving the purpose of adjusting the length of the support crossbeam 1 according to the widths of different mine tunnels, and facilitating the support of the tops of mine tunnels with different widths.

[0020] A worm 14 is rotatably installed in the middle of the crossbeam 1, and the worm 14 meshes with the worm gear 13.

[0021] By adopting the above technical solution, the worm 14 drives the worm gear 13 to rotate, and the worm gear 13 drives the bidirectional lead screw 12 to rotate.

[0022] A forward and reverse motor 6 is fixedly installed on one side of the middle of the crossbeam 1, and the output end of the forward and reverse motor 6 is fixedly connected to one end of the worm 14.

[0023] By adopting the above technical solution, the forward and reverse motor 6 is used to drive the worm 14 to rotate.

[0024] The bottom ends of the two support frames 2 are fixedly installed with hydraulic telescopic support rods 3, and the bottom ends of the two hydraulic telescopic support rods 3 are fixedly installed with support feet 4.

[0025] By adopting the above technical solution, according to the height of the mine tunnel, the hydraulic telescopic support rod 3 is used to drive the support frame 2 and the cross beam 1 to rise, so that the upper surface of the support frame 2 contacts the top of the mine tunnel to support the mine tunnel.

[0026] Both sides of the two ends where the two support frames 2 are far away from each other are fixedly installed with fixing ears 5, and mounting holes are provided on the four fixing ears 5 and the two support feet 4.

[0027] By adopting the above technical solution, bolts can be used to fix the hydraulic telescopic support rod 3 through the support foot 4. The two ends where the two support frames 2 are far away from each other are respectively in contact with the inner walls on both sides of the mine tunnel, and bolts are used to fix them through the fixing ears 5.

[0028] One side of the middle part of the cross beam 1 and one side of the two support frames 2 are fixedly installed with fixing blocks 15. Threaded rods 7 are inserted into the three fixing blocks 15, and the bottom ends of the three threaded rods 7 are fixedly installed with turning handles 10.

[0029] By adopting the above technical solution, since the top of the mine tunnel is mostly an irregular shape with unevenness, and the flat support cross beam 1 cannot completely support the top of the mine tunnel, the turning handle 10 can be rotated according to the height of the top of the mine tunnel to drive the threaded rod 7 to spiral up and down in the fixing block 15.

[0030] The top ends of the three threaded rods 7 are rotatably installed with fixing plates 16, and the upper surfaces of the three fixing plates 16 are hingedly installed with top plates 8.

[0031] By adopting the above technical solution, the turning handle 10 can be rotated according to the height of the top of the mine tunnel to drive the threaded rod 7 to spiral up and down in the fixing block 15, and the threaded rod 7 drives the top plate 8 to support the top of the mine tunnel.

[0032] Two symmetrically distributed telescopic rods 9 are inserted into the three fixing blocks 15, and the top ends of the telescopic rods 9 are fixedly connected to the lower surfaces of the corresponding fixing plates 16.

[0033] By adopting the above technical solution, the telescopic rod 9 can perform limit support on the fixing plate 16 to prevent the fixing plate 16 from rotating along with the threaded rod 7.

[0034] Working principle: When the utility model is in use, first, according to the width of the mine tunnel, the forward and reverse motor 6 drives the worm 14 to rotate. The worm 14 drives the worm wheel 13 to rotate, and the worm wheel 13 drives the bidirectional lead screw 12 to rotate. The bidirectional lead screw 12 drives the two threaded sleeves 11 to move away from each other. The two threaded sleeves 11 drive the two support frames 2 to slide away from each other along the cross beam 1 to adjust the position, so that the mutually separated ends of the two support frames 2 are respectively in contact with the inner walls on both sides of the mine tunnel, and bolts are used to fix them through the fixing ears 5, thus achieving the purpose of adjusting the length of the support cross beam 1 according to the widths of different mine tunnels, which is convenient for supporting the tops of mine tunnels with different widths;

[0035] Then, bolts are used to fix the hydraulic telescopic support rod 3 through the support feet 4. According to the height of the mine tunnel, the hydraulic telescopic support rod 3 is used to drive the support frame 2 and the cross beam 1 to rise, so that the upper surface of the support frame 2 is in contact with the top of the mine tunnel to support the mine tunnel. Since the top of the mine tunnel is mostly an irregular shape with unevenness, according to the height of the top of the mine tunnel, the rotary handle 10 is rotated to drive the threaded rod 7 to spiral up and down in the fixed block 15, and the threaded rod 7 drives the top plate 8 to support the top of the mine tunnel.

[0036] Obviously, those skilled in the art can make various changes and modifications to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and its equivalent technologies, the utility model also intends to include these changes and modifications.

Claims

1. A support and fixation structure for a mine tunnel, comprising a cross beam (1) and a hydraulic telescopic support rod (3), characterized in that: Both ends of the cross beam (1) are slidably sleeved with support frames (2), and the two support frames (2) are arranged in a mirror image. Triangular plates are fixedly installed at the right angles of the two support frames (2). Two mirror-image distributed threaded sleeves (11) are slidably clamped in the cross beam (1), and one end of the threaded sleeve (11) is fixedly connected to one end of the cavity of the corresponding support frame (2). A bidirectional lead screw (12) is rotatably installed in the cross beam (1), and the bidirectional lead screw (12) is threadedly inserted into the two threaded sleeves (11). A worm gear (13) is fixedly installed in the middle of the bidirectional lead screw (12).

2. The mine tunnel support and fixation structure according to claim 1, characterized in that, A worm (14) is rotatably installed in the middle of the cross beam (1), and the worm (14) meshes with the worm gear (13).

3. A mine tunnel support and fixation structure according to claim 1, characterized in that, A forward and reverse motor (6) is fixedly installed on one side of the middle of the cross beam (1), and the output end of the forward and reverse motor (6) is fixedly connected to one end of the worm (14).

4. A mine tunnel support and fixation structure according to claim 1, characterized in that, Hydraulic telescopic support rods (3) are fixedly installed at the bottom ends of the two support frames (2), and support feet (4) are fixedly installed at the bottom ends of the two hydraulic telescopic support rods (3).

5. The mine tunnel support and fixation structure according to claim 1, characterized in that, Fixed ears (5) are fixedly installed on both sides of the two ends of the two support frames (2) away from each other. Mounting holes are formed in the four fixed ears (5) and the two support feet (4).

6. The mine tunnel support and fixation structure according to claim 1, characterized in that, Fixed blocks (15) are fixedly installed on one side of the middle of the cross beam (1) and on one side of the two support frames (2). Threaded rods (7) are threadedly inserted into the three fixed blocks (15). Knobs (10) are fixedly installed at the bottom ends of the three threaded rods (7).

7. The mine tunnel support and fixation structure according to claim 6, characterized in that, The top ends of the three threaded rods (7) are rotatably installed with fixing plates (16), and the upper surfaces of the three fixing plates (16) are hingedly installed with top plates (8).

8. The mine tunnel support and fixation structure according to claim 6, characterized in that, Two symmetrically distributed telescopic rods (9) are inserted into the three fixed blocks (15), and the top ends of the telescopic rods (9) are fixedly connected to the lower surfaces of the corresponding fixing plates (16).

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