CN210858774U

CN210858774U - Mining tunneling shield support for coal mine

Info

Publication number: CN210858774U
Application number: CN201921765999.3U
Authority: CN
Inventors: 刘勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-21
Filing date: 2019-10-21
Publication date: 2020-06-26
Anticipated expiration: 2029-10-21

Abstract

The utility model relates to a coal mining technical field especially relates to a coal mine is with exploitation tunnelling shield support, including crawler attachment, base, back timber, first pneumatic cylinder and self-adaptation mechanism, be provided with a plurality of second pneumatic cylinders on the back timber, the top of second pneumatic cylinder is provided with self-adaptation mechanism, self-adaptation mechanism's top is provided with the roof, the utility model provides an in the coal mining tunnelling, the unable stable supporting of roof is in the dead position of needs lock, has the problem of potential safety hazard, when using this shield support, can finely tune the angle of roof in appointed position department to ensure that the roof can laminate completely and be used for supporting at the roof, the lock death degree that the roof was strutted is high, and the safety in utilization promotes greatly.

Description

Mining tunneling shield support for coal mine

Technical Field

The utility model relates to a coal mining technical field especially relates to a coal mine is with exploitation tunnelling shield support.

Background

In the coal mining process, in order to prevent roof collapse accidents, a hydraulic support is required to support a roof.

The application number is CN 201310686066.6's a chinese patent discloses a mining tunnelling shield support for coal mine, including base, back timber, crawler attachment and first pneumatic cylinder, be provided with a plurality of second pneumatic cylinders on the back timber, the top of second pneumatic cylinder is connected with the roof.

This technical scheme can effectively prevent the emergence of roof fall accident, the security of guarantee coal mining operation, but, the roof of actual support is not complete plane, consequently, the pneumatic cylinder upwards withstands the roof and often can lead to the roof can't be locked in the position that needs were strutted because the roof is not the complete support, causes the accident.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the coal mining tunnelling that exists among the prior art, the unable stable supporting of roof is in the position that needs lock die, has the shortcoming of potential safety hazard, and the mining tunnelling shield support for coal mine that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a coal mine is with exploitation tunnelling shield support, includes crawler attachment, base, back timber, first pneumatic cylinder and self-adaptation mechanism, be provided with a plurality of second pneumatic cylinders on the back timber, the top of second pneumatic cylinder is provided with self-adaptation mechanism, self-adaptation mechanism's top is provided with the roof.

Preferably, the first hydraulic cylinders are symmetrically arranged on two sides of the base.

Preferably, the second hydraulic cylinders are sequentially arranged at intervals along the length direction of the top beam.

Preferably, the self-adaptive mechanism comprises a fixed shell, and the upper half part of the fixed shell is hinged with an adjusting roller.

Preferably, the upper half of the adjusting roller is exposed to the outer side of the top of the fixed shell, the top and the bottom of the adjusting roller are respectively provided with a plain noodles along the horizontal direction, a top plate is arranged on the plain noodles at the top, and a fixed plate is arranged on the plain noodles at the bottom.

Preferably, a vertical hydraulic telescopic arm led out from the top end of the second hydraulic cylinder penetrates through the fixed shell and is in contact with the lower surface of the fixed plate.

Preferably, an avoiding channel for rotation of the fixing plate is formed in the fixing housing.

The utility model has the advantages that: through the shield support that this scheme provided, in having solved the coal mining tunnelling, the unable stable supporting of roof is in the dead position of needs lock, has the problem of potential safety hazard, when using this shield support, can finely tune the angle of roof in appointed position department to ensure that the roof can laminate completely and be used for supporting at the roof, the lock that the roof was strutted is extremely high, and the safety in utilization promotes greatly.

Drawings

Fig. 1 is a schematic structural view of a coal mining tunneling shield support according to the present invention;

fig. 2 is the utility model provides a self-adaptation mechanism schematic diagram of mining tunnelling shield support for coal mine.

In the figure: the device comprises a crawler device 1, a base 2, a first hydraulic cylinder 3, a top beam 4, a second hydraulic cylinder 5, an adaptive mechanism 6, a top plate 7, a fixed shell 8, an adjusting roller 9 and a fixed plate 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the embodiment, referring to fig. 1-2, a coal mining tunneling shield support for coal mines comprises a crawler device 1, a base 2, a top beam 4, first hydraulic cylinders 3 and a self-adaptive mechanism 6, wherein the first hydraulic cylinders 3 are symmetrically arranged on two sides of the base 2, a plurality of second hydraulic cylinders 5 are arranged on the top beam 4, the second hydraulic cylinders 5 are sequentially arranged along the length direction of the top beam 4 at intervals, the self-adaptive mechanism 6 is arranged at the top end of each second hydraulic cylinder 5, the self-adaptive mechanism 6 comprises a fixed shell 8, an adjusting roller 9 is hinged to the upper half part of the fixed shell 8, the upper half part of the adjusting roller 9 is exposed to the outer side of the top part of the fixed shell 8, the top part and the bottom part of the adjusting roller 9 are respectively provided with a plane surface along the horizontal direction, a top plate 7 is arranged on the plane surface at the top part, a fixed plate 10 is arranged on the plane surface at the bottom part, a vertical hydraulic telescopic arm led out from the top end of the, and an escape channel for rotating the fixing plate 10 is opened in the fixing housing 8.

The specific working principle is as follows: the whole equipment can be driven to move through the crawler device 2, the first hydraulic cylinder 3 is started when the equipment reaches a specified position, the first hydraulic cylinder 3 pushes the upper top beam 4 to move upwards, and the equipment stops when the equipment reaches a proper height; then the second hydraulic cylinder 5 is started, the top end of the hydraulic telescopic arm led out from the output end of the second hydraulic cylinder 5 moves upwards and is in contact with the fixing plate 10, in the state, the top plate 7 is simultaneously attached to a wall surface needing to be supported, and when the wall surface is flat, the self-adaptive mechanism 6 is pushed upwards, so that the upper surface of the top plate 7 can be ensured to be tightly attached to the wall surface and be kept supported; when the wall surface has a certain radian, the self-adaptive mechanism 6 is pushed upwards, and the upper surface of the top plate 7 drives the adjusting roller 9 to rotate in order to be tightly attached to the wall surface, so that the upper surface of the top plate 7 can be also ensured to be tightly attached to the wall surface to be supported and used for supporting by pushing up the fixed plate 10.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a coal mining tunnelling shield support for coal mine, includes crawler attachment (1), base (2), back timber (4), first pneumatic cylinder (3) and self-adaptation mechanism (6), be provided with a plurality of second pneumatic cylinders (5) on back timber (4), its characterized in that, the top of second pneumatic cylinder (5) is provided with self-adaptation mechanism (6), the top of self-adaptation mechanism (6) is provided with roof (7).

2. A mining tunnelling shield as claimed in claim 1, in which the first hydraulic cylinders (3) are symmetrically located on either side of the base (2).

3. A mining tunnelling shield as claimed in claim 1, in which the second hydraulic cylinders (5) are spaced apart in sequence along the length of the roof beam (4).

4. A mining excavation shield support for coal mines according to claim 1, wherein the adapting means (6) comprises a stationary casing (8), the upper half of the stationary casing (8) being hinged with a dancer roll (9).

5. A mining excavation shield support for coal mines according to claim 4, wherein the upper half of the adjusting roller (9) is exposed to the outside of the top of the fixed casing (8), the top and bottom of the adjusting roller (9) are each horizontally cut out in a plane, and a top plate (7) is attached to the plane at the top and a fixing plate (10) is attached to the plane at the bottom.

6. A mining excavation shield support according to claim 5, characterized in that a vertically extending hydraulic arm extending from the top end of the second hydraulic cylinder (5) passes through the stationary casing (8) and contacts the lower surface of the stationary plate (10).

7. A mining excavation shield support according to claim 5, wherein the fixed casing (8) is internally provided with an escape channel for rotation of the fixed plate (10).