Deep mine roadway surrounding rock grouting anti-blocking structure

Abstract

A deep mine roadway surrounding rock grouting anti-blocking structure effectively solves the problems that blocking is not easy to dredge and working efficiency is low and comprises a body, a plurality of supporting legs are evenly hinged to the circumference of the body, the other ends of the supporting legs are rotationally connected with idler wheels, springs are installed between the outer surface of the body and the supporting legs, and a plurality of spray heads are evenly installed on the circumference of the body. The nozzles are located at the lower end of the main body, a motor is fixed in the main body, a rotating shaft in the vertical direction is coaxially fixed to the motor, the rotating shaft is rotationally connected with the main body, the rotating shaft is located in the middle of the multiple nozzles, a spiral blade located on the outer side of the main body is coaxially fixed to the rotating shaft, and a conical head located below the spiral blade is coaxially fixed to the rotating shaft; and a plurality of triangular scrapers are uniformly fixed on the outer edge surface of the conical head.

Description

Technical Field

[0001] The utility model belongs to the technical field of mining equipment, and in particular relates to a surrounding rock grouting anti-blocking structure for a deep mine tunnel. Background Art

[0002] During the grouting reinforcement of surrounding rock in tunnels of mine engineering, grouting pipes are often used for grouting. After the paste slurry is prepared, it is transported to the hollowed-out area of ​​the coal mine through the grouting pipe. The paste slurry is filled in a special paste bag, and the paste bag is filled with the hollowed-out coal seam. When the paste in the paste bag solidifies, a stable support can be formed. In the process of transporting paste slurry to the coal mine, the problem of grouting pipe blockage often occurs. The usual solution is to manually find the blocked section, and then try to dredge the grouting pipe by switching pumps, knocking or pressurizing. The operation is cumbersome and the work efficiency is low. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the utility model is to provide a deep mine tunnel surrounding rock grouting anti-blocking structure, which effectively solves the problem of difficult unblocking of blockages and low work efficiency.

[0004] The technical solution is to include a main body, a plurality of legs evenly hinged on the circumference of the main body, a roller is rotatably connected to the other end of the leg, a spring is installed between the outer surface of the main body and the leg, a plurality of nozzles are evenly installed on the circumference of the main body, the nozzles are located at the lower end of the main body, a motor is fixed inside the main body, a vertical rotating shaft is coaxially fixed to the motor, the rotating shaft is rotatably connected to the main body, the rotating shaft is located in the middle of the plurality of nozzles, a spiral blade located on the outside of the main body is coaxially fixed to the rotating shaft, a conical head located below the spiral blade is coaxially fixed to the rotating shaft, and a plurality of triangular scrapers are evenly fixed on the outer edge surface of the conical head.

[0005] Preferably, the main body is in the shape of a cylinder.

[0006] Preferably, a water supply pipeline identical to that of the nozzle is fixed inside the main body.

[0007] Preferably, a cable connected to the motor is installed in the middle position of the main body.

[0008] Preferably, a plurality of heat dissipation pipes connected to the motor are provided in the main body.

[0009] Compared with the traditional equipment, the utility model has the following advantages: 1) It adopts the support leg and spring structure, has a certain degree of elasticity, can walk inside the grouting pipes of different diameters, and has a wide range of adaptability; 2) The structure is ingenious, the conical head, the triangular scraper and the spiral blade are combined, the conical head drives the triangular scraper to rotate, the triangular scraper can quickly break up the blockage, and under the action of the spiral blade, the broken blockage is transported outward, which helps the conical head to continue to push towards the blockage, the dredging effect is good, and the work efficiency is improved; 3) Under the action of the nozzle, the nozzle cleans the inner wall of the grouting pipe with water to ensure the cleanliness of the inside of the grouting pipe and is fully functional; 4) Under the joint action of the water supply pipeline and the heat dissipation pipeline, the water supply pipeline can cool the circumference of the motor with water, and the heat dissipation pipeline ensures the air circulation of the motor, effectively ensuring the working state of the motor and extending the service life of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the main view of the utility model.

[0011] Figure 2 yes Figure 1 Schematic diagram of the AA section view.

[0012] Figure 3 It is a schematic diagram of the three-dimensional structure of the cone head in the utility model.

[0013] Figure numerals: 1. main body; 2. support leg; 3. roller; 4. spring; 5. nozzle; 6. motor; 7. rotating shaft; 8. spiral blade; 9. conical head; 10. triangular scraper; 11. water pipeline; 12. cable; 13. heat dissipation pipeline. DETAILED DESCRIPTION

[0014] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0015] Depend on Figures 1 to 3 A deep mine tunnel surrounding rock grouting anti-clogging structure is provided, comprising a main body 1, a plurality of legs 2 are evenly hinged on the circumference of the main body 1, a roller 3 is rotatably connected to the other end of the leg 2, a spring 4 is installed between the outer surface of the main body 1 and the leg 2, a plurality of nozzles 5 are evenly installed on the circumference of the main body 1, the nozzle 5 is located at the lower end of the main body 1, a motor 6 is fixed in the main body 1, a rotating shaft 7 in the vertical direction is coaxially fixed to the motor 6, the rotating shaft 7 is rotatably connected to the main body 1, the rotating shaft 7 is located in the middle of the plurality of nozzles 5, a spiral blade 8 located on the outside of the main body 1 is coaxially fixed to the rotating shaft 7, a conical head 9 located below the spiral blade 8 is coaxially fixed to the rotating shaft 7, and a plurality of triangular scrapers 10 are evenly fixed on the outer edge surface of the conical head 9.

[0016] The main body 1 is in the shape of a cylinder.

[0017] A water delivery pipe 11 which is the same as the nozzle 5 is fixed inside the main body 1 .

[0018] A cable 12 connected to the motor 6 is installed in the middle of the main body 1 .

[0019] In order to prevent liquid from entering the motor 6 , a rotating sealing ring is installed between the rotating shaft 7 and the main body 1 .

[0020] The main body 1 is provided with a plurality of heat dissipation pipes 13 connected to the motor 6 .

[0021] When the utility model is in use, during the grouting process of surrounding rock in deep mine tunnel, the slurry in the grouting pipe is prone to blockage. When the grouting pipe is blocked, the main body 1 is penetrated into the grouting pipe, the roller 3 is fitted with the inner wall of the grouting pipe, and a spring 4 is installed between the outer surface of the main body 1 and the support leg 2 to ensure that the support leg 2 is suitable for grouting pipes of different diameters. The roller 3 moves in the grouting pipe. When the conical head 9 encounters the blockage in the grouting pipe, the motor 6 and the nozzle 5 are started through the cable 12 and the water supply pipeline 11. The motor 6 drives the rotating shaft 7 to rotate, and the rotating shaft 7 drives the spiral blade 8 and the conical head 9 to rotate synchronously. The conical head 9 drives the triangular scraper 10 to rotate synchronously, and the triangular scraper 10 quickly breaks the blockage. Under the action of the spiral blade 8, the broken material is transported outward. Under the action of the nozzle 5, the high-pressure water sprayed by the nozzle 5 cleans the inner wall of the grouting pipe, which helps the conical head 9 to continue to move into the inside of the grouting pipe, effectively preventing the blockage inside the grouting pipe. The operation is simple, the work efficiency is high, and the blockage is effectively cleaned.

[0022] This embodiment does not impose any formal restrictions on the shape, material, structure, etc. of the utility model. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the utility model are within the protection scope of the technical solution of the utility model.

Claims

1. A deep mine tunnel surrounding rock grouting anti-blocking structure, characterized in that: The invention comprises a main body (1), wherein a plurality of legs (2) are evenly hinged on the circumference of the main body (1), the other end of the legs (2) is rotatably connected to a roller (3), a spring (4) is installed between the outer surface of the main body (1) and the legs (2), a plurality of nozzles (5) are evenly installed on the circumference of the main body (1), the nozzle (5) is located at the lower end of the main body (1), a motor (6) is fixed inside the main body (1), a rotating shaft (7) in a vertical direction is coaxially fixed to the motor (6), the rotating shaft (7) is rotatably connected to the main body (1), the rotating shaft (7) is located in the middle of the plurality of nozzles (5), a spiral blade (8) located outside the main body (1) is coaxially fixed to the rotating shaft (7), a conical head (9) located below the spiral blade (8) is coaxially fixed to the rotating shaft (7), and a plurality of triangular scrapers (10) are evenly fixed to the outer edge surface of the conical head (9).

2. A deep mine tunnel surrounding rock grouting anti-blocking structure according to claim 1, characterized in that: The main body (1) is in the shape of a cylinder.

3. The deep mine tunnel surrounding rock grouting anti-blocking structure according to claim 1 is characterized in that: A water delivery pipeline (11) identical to that of the nozzle (5) is fixed inside the main body (1).

4. The deep mine tunnel surrounding rock grouting anti-blocking structure according to claim 1 is characterized in that: A cable (12) connected to the motor (6) is installed in the middle of the main body (1).

5. The deep mine tunnel surrounding rock grouting anti-blocking structure according to claim 1, characterized in that: A rotating sealing ring is installed between the rotating shaft (7) and the main body (1).

6. The deep mine tunnel surrounding rock grouting anti-blocking structure according to claim 1, characterized in that: The main body (1) is provided with a plurality of heat dissipation pipes (13) which are connected to the motor (6).

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