CN217270248U

CN217270248U - Safe stoping supporting mechanism for mine working face

Info

Publication number: CN217270248U
Application number: CN202123352133.XU
Authority: CN
Inventors: 秦显宾; 秦鲁生; 胡珂; 巩振岭; 朱东旭; 强建华; 张明将; 李庆华; 宋迎春
Original assignee: Shandong Lutai Holding Group Co ltd Luwa Coal Mine; Shandong Lutai Holding Group Co Ltd
Current assignee: Shandong Lutai Holding Group Co ltd Luwa Coal Mine; Shandong Lutai Holding Group Co Ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-08-23
Anticipated expiration: 2031-12-29

Abstract

A safe mining supporting mechanism for a mine working face comprises a base, a rotary base, a main supporting pipe and a top plate. The base is provided with a rotatable rotating base, and the rotating base is provided with a main supporting pipe. The main supporting pipe comprises an inner pipe body and an outer pipe body, wherein the inner pipe body is in threaded connection with the outer pipe body through threads to form a complete main supporting pipe. The bottom end of the main supporting pipe, namely the bottom end of the outer pipe body, is connected with the rotating base, and the top end of the main supporting pipe, namely the top end of the inner pipe body, is connected with the top plate. Telescopic guide rods are arranged on two sides of the main supporting pipe, namely between the base and the top plate. A mine working face safety back production supporting mechanism, its reasonable in design, the structure is ingenious, can adjust the bearing height according to the actual operation condition in real time, convenient to use, the work load is little, can effectively improve work efficiency, lower labour cost.

Description

Safe stoping supporting mechanism for mine working face

Technical Field

The utility model relates to a coal mining struts equipment, especially relates to a mine working face safety stoping supporting mechanism.

Background

The non-pillar mining technology is a mining technology for maintaining a roadway in other modes without reserving a protective roadway pillar near a hollow retained roadway in the coal mining process, and has the advantages of high coal recovery rate, capability of reducing rock burst, low tunneling rate and low roadway maintenance cost. And in the process of stoping, the gob-side entry retaining supports the stoped roadway by using methods such as reinforced concrete supports, filling belts, dense pillars and battens along the edge of the gob-side entry retaining, so that the stoping of coal is prevented from being influenced after the collapse of the gob-side entry retaining. At present, the coal pillar-free mining technology commonly used in the coal mining operation process is to form a filling wall body by using a support mold and grouting filling near a gob-side entry retaining, and the method has the following technical defects: the support grinding tool is of an integrally formed structure, and the whole height of the support grinding tool is difficult to completely match with the actual support height. When the support grinding apparatus is too high or too low, the support height of the support grinding apparatus needs to be adjusted by workers in cutting, welding and other modes, which is very troublesome, large in workload, low in working efficiency and high in labor cost. Therefore, the person skilled in the art provides a safe mining support mechanism for a mine working face to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the weak point among the prior art, provide a mine working face safety recovery supporting mechanism, its reasonable in design, the structure is ingenious, can adjust the bearing height according to the actual operation condition in real time, convenient to use, and the work load is little, can effectively improve work efficiency, lower labour cost.

A mine working face safety stoping supporting mechanism, including base, rotating base, main tributary stay tube and roof. The base is provided with a rotatable rotating base, and the rotating base is provided with a main supporting pipe. The main support pipe comprises an inner pipe body 4 and an outer pipe body, wherein the inner pipe body is in threaded connection with the outer pipe body through threads to form a complete main support pipe. The bottom end of the main supporting pipe, namely the bottom end of the outer pipe body, is connected with the rotating base, and the top end of the main supporting pipe, namely the top end of the inner pipe body, is connected with the top plate. Telescopic guide rods are arranged on two sides of the main supporting pipe, namely between the base and the top plate.

The utility model has the advantages that: the stoping supporting mechanism is reasonable in design, ingenious in overall structure, convenient to use, small in workload, and capable of effectively improving working efficiency and reducing labor cost, and supporting height can be adjusted in real time according to actual operation conditions.

Drawings

Fig. 1 is a schematic structural view of a mine working face safety stoping supporting mechanism of the utility model.

Fig. 2 is a schematic structural view of the rotating handle of the present invention.

Fig. 3 is a schematic view of a connection structure between the rotary base and the base according to the present invention.

The device comprises a base 1, a base 2, a rotary base 3, an outer tube 4, an inner tube 5, a top plate 6, a guide rod 7, a positioning tooth surface 8, a rotary handle 9, a reinforcing rib 10, a rotating shaft 11, an inner tube 12 and an outer tube.

Detailed Description

Referring now to the drawings in the specification, in conjunction with specific embodiments, there is illustrated the following: a mine working face safety stoping supporting mechanism, including base 1, rotating base 2, main tributary stay tube and roof 5. The base 1 is provided with a rotatable rotary base 2, and the rotary base 2 is provided with a main support pipe. The main supporting pipe comprises an inner pipe body 4 and an outer pipe body 3, wherein the inner pipe body 4 is in threaded connection with the outer pipe body 3 through threads to form a complete main supporting pipe. The bottom end of the main support pipe, i.e. the outer body 3, is connected to the rotating base 2, and the top end of the main support pipe, i.e. the inner body 4, is connected to the top plate 5. On both sides of the main support tube, i.e. between the base 1 and the top plate 5, telescopic guide rods 6 are arranged.

When the support mechanism is used, the support mechanism is arranged at an operation area, a worker firstly digs a foundation pit and sets the base 1, namely the bottom of the support mechanism, in the foundation pit. Then the outer body 3 of the main supporting pipe is rotated, and the positioning pipe 6 is of a telescopic structure, so that the inner body 4 of the main supporting pipe can move upwards or downwards by rotating the outer body 3 under the action of the positioning pipe 6, and the function of adjusting the supporting height of the supporting mechanism is realized. When the top plate 5 tightly props against the top surface of the operation area, the worker can stop rotating, and then concrete is poured into the foundation pit to firmly fix the main supporting mechanism. And finally, concrete is poured into the main supporting pipe to ensure the integral strength of the supporting mechanism and ensure that the supporting mechanism reaches the use standard. The outer surfaces of the main supporting pipe and the positioning pipe 6 can be coated with an anti-rust layer, so that the problems of corrosion, rusting and the like can be prevented, and the service life is prolonged.

Further, a rotating handle 8 is arranged on the outer tube body 3. The installation rotating handle 8 can make things convenient for the staff to rotate outer body 3, very convenient, and the practicality is better.

Further, a positioning tooth surface 7 is provided on the top surface of the top plate 5. The bottom surface of the base 1 is also provided with a positioning tooth surface 7. The structure of the positioning tooth surface 7 can increase the stability between the top plate 5, the base 1 and the working surface.

Further, a reinforcing rib 9 is arranged at the joint of the top plate 5 and the inner pipe body 4. And reinforcing ribs 9 are also arranged at the joint of the outer tube body 3 and the rotating base 2.

Further, the rotating base 2 is rotatably connected with the base 1 through a rotating shaft 10. The rotating shaft is arranged on the bottom surface of the rotating base 2, the top surface of the base 1 is provided with a slot corresponding to the rotating shaft 10, and the rotating shaft 10 is inserted into the slot in a rotating mode, so that the rotating base 2 can rotate on the base 1.

Further, the guide rod 6 is a pipe-in-pipe structure, and includes an inner pipe 11 and an outer pipe 12. The inner tube 11 is movably inserted into the outer tube 12 to form a complete and telescopic guide rod 6. In practical use, after the main supporting pipe is poured by workers, concrete can be poured into the guide rod 6 according to the field condition so as to increase the supporting strength of the supporting mechanism.

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 alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a mine working face safety recovery supporting mechanism, including base (1), rotating base (2), main tributary stay tube and roof (5), its characterized in that: a rotatable rotary base (2) is arranged on the base (1), and a main supporting pipe is arranged on the rotary base (2); the main support pipe comprises an inner pipe body (4) and an outer pipe body (3), wherein the inner pipe body (4) is in threaded connection with the outer pipe body (3) through threads to form a complete main support pipe; the bottom end of the main supporting pipe, namely the bottom end of the outer pipe body (3), is connected with the rotating base (2), and the top end of the main supporting pipe, namely the top end of the inner pipe body (4), is connected with a top plate (5); telescopic guide rods (6) are arranged on two sides of the main supporting pipe, namely between the base (1) and the top plate (5).

2. The mine working face safety stoping support mechanism of claim 1, wherein: the outer tube body (3) is provided with a rotating handle (8).

3. The mine working face safe stoping supporting mechanism according to claim 1, characterized in that: a positioning tooth surface (7) is arranged on the top surface of the top plate (5); the bottom surface of the base (1) is also provided with a positioning tooth surface (7).

4. The mine working face safety stoping support mechanism of claim 1, wherein: a reinforcing rib (9) is arranged at the joint of the top plate (5) and the inner pipe body (4); the joint of the outer tube body (3) and the rotating base (2) is also provided with a reinforcing rib (9).

5. The mine working face safety stoping support mechanism of claim 1, wherein: the rotating base (2) is rotatably connected with the base (1) through a rotating shaft (10); the rotating shaft is arranged on the bottom surface of the rotating base (2), a slot corresponding to the rotating shaft (10) is formed in the top surface of the base (1), and the rotating shaft (10) is inserted into the slot in a rotating mode so that the rotating base (2) can rotate on the base (1).

6. The mine working face safety stoping support mechanism of claim 1, wherein: the guide rod (6) is of a pipe sleeve structure and comprises an inner pipe (11) and an outer pipe (12); the inner pipe (11) is movably inserted into the outer pipe (12) to form a complete and telescopic guide rod (6).