CN217327363U

CN217327363U - Temporary support frame for arched tunnel of coal mine

Info

Publication number: CN217327363U
Application number: CN202220484771.2U
Authority: CN
Inventors: 秦显宾; 郭连敏
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: 2022-03-08
Filing date: 2022-03-08
Publication date: 2022-08-30
Anticipated expiration: 2032-03-08

Abstract

A temporary support frame for an arched tunnel of a coal mine comprises an arc-shaped top plate, a support frame, support stand columns and a base. The arc-shaped top plate is fixed on the supporting frame, the bottom of the supporting frame is connected with a supporting upright post, and the supporting upright post is connected with a base. The support column comprises a lifting screw and a rotary pipe body, the lifting screw is screwed inside the rotary pipe body, the top end of the lifting screw is connected with the support frame, and the bottom end of the rotary pipe body is rotatably connected with the base. The lifting screw is provided with a guide groove, a guide rod is movably arranged in the guide groove in a penetrating mode, and the bottom end of the guide rod penetrates out of the guide groove and extends into the rotary pipe body to be connected with the base. The bottom cover of rotatory body is equipped with the worm wheel, is provided with the worm that meshes with the worm wheel through the support on the base, and the worm is connected with the driver. A mine arch tunnel temporary support frame, its reasonable in design, the structure is ingenious, convenient to use, recovery, support intensity is better, not only can improve work efficiency, but also can also improve factor of safety.

Description

Temporary support frame for arched tunnel of coal mine

Technical Field

The utility model relates to a colliery tunnel is strutted, especially relates to a colliery arch tunnel is with interim support frame.

Background

In the underground production process of the coal mine, the tunneling work is an indispensable system engineering, the supporting quality of the system engineering is related to the safety of a roadway, wherein the control of exposed surrounding rock bodies before permanent supporting is also temporary supporting, and the temporary supporting of a tunneling working face for a long time mostly adopts modes of front canopy temporary supporting, machine-mounted temporary supporting, self-moving tunneling temporary supporting and the like.

Although certain safety measures are adopted and certain effects are achieved for temporary support of the coal mine underground tunneling roadway, certain defects still exist due to uncertain factors such as multiple underground roadway geological conditions and the like. At present, the existing forepoling beam mainly utilizes a pi-shaped beam or a steel pipe, a wood board and the like, and needs a plurality of people to cooperate, lay and tightly back a stranded roof wood board, so that time and labor are wasted, and the working efficiency is low; secondly, the method belongs to passive support, has no primary support force, and greatly reduces the support capability; moreover, the operation in the empty top area cannot be avoided during manual operation, and certain danger is caused. Accordingly, those skilled in the art have provided a temporary support frame for an arch roadway of a mine 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 colliery arch tunnel is with interim support frame, its reasonable in design, the structure is ingenious, convenient to use, recovery, and support intensity is better, not only can improve work efficiency, but also can improve factor of safety.

A colliery arched tunnel with interim support frame, including arc roof, braced frame, support post and base. The arc-shaped top plate is fixed on the supporting frame to form an umbrella-shaped supporting mode. The bottom center department of braced frame is connected with the support post, the support post is connected with the base. The support column comprises a lifting screw and a rotating pipe body, the lifting screw is connected inside the rotating pipe body in a threaded mode, the top end of the lifting screw is connected with the support frame, and the bottom end of the rotating pipe body is connected with the base in a rotating mode through a bearing. The center department of lifting screw has seted up the guide way, the guide bar is worn to be equipped with by the guide way internalization, lifting screw passes through the guide way and can vertically move on the guide bar, the bottom of guide bar is worn out the guide way and is extended to the rotatory internal and base of tube and be connected. The bottom cover of rotatory body is equipped with the worm wheel, be provided with the worm that meshes mutually with the worm wheel through the support on the base, the worm is connected with the driver, the driver passes through the structure of worm wheel and worm in order to drive the rotation of rotatory body.

The utility model has the advantages that: the support frame has the advantages of reasonable design, ingenious overall structure, convenience in use and recovery, good support strength, capability of improving the working efficiency and safety factor.

Drawings

Fig. 1 is a schematic structural view of a temporary support frame for an arch roadway of a coal mine.

Fig. 2 is a cross-sectional view of the support post of the present invention.

Fig. 3 is a schematic structural diagram of the worm wheel and the worm according to the present invention.

1-arc roof 2-braced frame 3-support column 4-base 5-worm wheel 6-worm 7-lifting screw 8-rotatory body 9-guide way 10-guide bar.

Detailed Description

Referring now to the drawings in the specification, in conjunction with specific embodiments, there is illustrated the following: a colliery arch tunnel with interim support frame, including arc roof 1, braced frame 2, support post 3 and base 4. The arc-shaped top plate 1 is fixed on the support frame 2 to form an umbrella-shaped support. The bottom center department of braced frame 2 is connected with support post 3, support post 3 is connected with base 4. The support column 3 is including lifting screw 7 and rotatory body 8, lifting screw 7 spiro union is inside rotatory body 8, lifting screw 7's top is connected with braced frame 2, rotatory body 8's bottom is passed through the bearing and is rotated with base 4 and be connected. Guide way 9 has been seted up to lifting screw 7's center department, guide bar 10 is worn to be equipped with by the activity in guide way 9, lifting screw 7 can be on guide bar 10 vertical removal through guide way 9, the bottom of guide bar 10 is worn out guide way 9 and is connected with base 4 in extending to rotatory body 8. The bottom cover of rotatory body 8 is equipped with worm wheel 5, be provided with the worm 6 with worm wheel 5 engaged with through the support on the base 4, worm 6 is connected with the driver, the driver passes through the structure of worm wheel and worm in order to drive rotatory body 8 and rotate.

The utility model discloses an application principle: during the use, the staff adjusts the height of support post 3 to minimum earlier, and lifting screw 7 furthest is in rotatory body 8 inside promptly to in with this support frame transport to the position of strutting. After reaching the supporting position, the staff starts the driving machine, and the driving machine drives the rotating pipe body 8 to rotate through the structure of the worm gear and the worm, and because the rotating pipe body 8 is in threaded connection with the lifting screw 7, under the guiding and limiting effects of the guide rod 10, the lifting screw 7 can vertically rise until the arc-shaped top plate 1 tightly props against the top surface of the roadway to realize active support. The whole operation is very convenient, the working strength is low, the safety coefficient is high, and the supporting strength is good.

When this support frame is retrieved to needs, the staff only need make the driving machine direction rotate, and lifting screw 7 can descend to inside the rotatory body 8 to reduce the holistic height of support post 3, this support frame resumes to initial condition promptly, in order to wait to retrieve.

Further, the guide groove 9 is a triangular groove body, and the guide rod 10 is a triangular rod body.

Further, the driving machine is a hydraulic motor.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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 colliery arch tunnel is with interim support frame, including arc roof (1), braced frame (2), support post (3) and base (4), its characterized in that: the arc-shaped top plate (1) is fixed on the support frame (2) to form an umbrella-shaped support form; the center of the bottom of the supporting frame (2) is connected with a supporting upright post (3), and the supporting upright post (3) is connected with a base (4); the supporting upright post (3) comprises a lifting screw rod (7) and a rotating pipe body (8), the lifting screw rod (7) is in threaded connection with the inside of the rotating pipe body (8), the top end of the lifting screw rod (7) is connected with the supporting frame (2), and the bottom end of the rotating pipe body (8) is rotatably connected with the base (4) through a bearing; a guide groove (9) is formed in the center of the lifting screw (7), a guide rod (10) is movably arranged in the guide groove (9) in a penetrating mode, the lifting screw (7) can vertically move on the guide rod (10) through the guide groove (9), and the bottom end of the guide rod (10) penetrates through the guide groove (9) and extends into the rotary pipe body (8) to be connected with the base (4); the bottom cover of rotatory body (8) is equipped with worm wheel (5), be provided with through the support on base (4) with worm wheel (5) engaged with worm (6), worm (6) are connected with the driver, the driver rotates in order to drive rotatory body (8) through the structure of worm wheel and worm.

2. The temporary support frame for the arched laneway of the coal mine according to claim 1, characterized in that: the guide groove (9) is a triangular groove body, and the guide rod (10) is a triangular rod body.

3. The temporary support frame for the arched laneway of the coal mine according to claim 1, characterized in that: the driving machine is a hydraulic motor.