CN-224226003-U - Backstop force arm structure of mining belt conveyor

CN224226003UCN 224226003 UCN224226003 UCN 224226003UCN-224226003-U

Abstract

The utility model relates to a backstop force arm structure of a mining belt conveyor, which comprises a backstop body and a force arm and is characterized by further comprising an anti-rotation stop block which is buried in a foundation in advance, wherein one end of the force arm is detachably connected with the backstop body, the other end of the force arm is inserted into an inner hole of the anti-rotation stop block, meanwhile, the force arm is in loose fit with the anti-rotation stop block, and when the outer ring of the backstop body and the force arm limit the reverse rotation of a transmission shaft of the mining belt conveyor, the anti-rotation stop block simultaneously restricts the other end of the force arm to rotate in the backstop block to play a role of stopping. The split structure provided by the utility model not only can ensure accurate positioning and stable connection, but also can reliably transfer torque and is more convenient to maintain, and the operation efficiency is improved.

Inventors

LI JUAN
NI JUNFENG
SU ZEMIN
SHI YIJUN
ZHANG YUJIE

Assignees

常州莱克斯诺传动设备有限公司

Dates

Publication Date: 20260512
Application Date: 20241223

Claims (2)

1. The backstop force arm structure of the mining belt conveyor comprises a backstop body (1) and a force arm (2), and is characterized by further comprising an anti-rotation stop block (3) which is buried on a foundation in advance, one end of the force arm (2) is detachably connected with an outer ring of the backstop body (1), the other end of the force arm (2) is inserted into an inner hole of the anti-rotation stop block (3), meanwhile, the force arm (2) is in loose fit with the anti-rotation stop block (3), a gap is reserved between the periphery of the other end of the force arm (2) and the inner hole wall of the anti-rotation stop block (3), The outer ring of the backstop body (1) is provided with a force arm installation part (11), the force arm installation part (11) is provided with a pin shaft hole corresponding to a connecting hole arranged at one end of the force arm (2), the pin shaft (5) simultaneously passes through the pin shaft hole on the force arm installation part (11) and the connecting hole on the force arm (2) and forms detachable connection with the outer ring of the backstop body (1) and the force arm (2) through a cotter pin (4), When the outer ring of the backstop body (1) and the force arm (2) limit the reverse rotation of the transmission shaft of the mining belt conveyor, the anti-rotation stop block (3) simultaneously restricts the other end of the force arm (2) to rotate in the backstop.
2. The backstop force arm structure of the mining belt conveyor according to claim 1, wherein the force arm (2) is of an I-shaped steel structure.

Description

Backstop force arm structure of mining belt conveyor Technical Field The utility model relates to a moment arm structure, in particular to a backstop moment arm structure of a mining belt conveyor. Background Backstop for mining belt conveyors is a critical component that prevents the conveyor from reversing during a shut down or sudden power outage. The arm of force is as the important component part of backstop, and its mounting structure's rationality and steadiness directly influence the braking effect of backstop and the whole safety of conveyer. The connection between the force arm of the existing backstop and the backstop body is mostly fixed in a rigid connection mode. For example, one end of the arm is connected to the outer side of the backstop main body by a bolt or welding mode, or the backstop arm is directly designed as a whole with the backstop main body, and the other end of the arm is fixed at the bottom of the foundation by a bolt or welding mode. In either structural form, the arm of force and the main body must be removed and maintained integrally during the later maintenance, which is difficult to operate and has a large workload. The existing backstop for the mining conveyor is very bad in use environment, limited in operation space for manpower maintenance, very inconvenient to weld and fix, and the tail end of the arm of force is close to the bottom of the foundation. Disclosure of Invention The utility model aims to provide a split structure, which not only can ensure accurate positioning and stable connection, but also can reliably transfer torque and is more convenient to maintain, and the backstop arm structure of the mining belt conveyor can improve the operation efficiency. In order to achieve the aim, the technical scheme is that the backstop force arm structure of the mining belt conveyor comprises a backstop body and a force arm, and is characterized by further comprising an anti-rotation stop block buried on a foundation in advance, wherein one end of the force arm is detachably connected with an outer ring of the backstop body, the other end of the force arm is inserted into an inner hole of the anti-rotation stop block, meanwhile, the force arm is in loose fit with the anti-rotation stop block, and when the outer ring of the backstop body and the force arm limit the reverse rotation of a transmission shaft of the mining belt conveyor, the anti-rotation stop block simultaneously restricts the other end of the force arm to rotate in the backstop block to play a role of stopping. In the technical scheme, one end of the force arm is detachably connected with the outer ring of the backstop body through the cotter pin and the pin shaft. In the technical scheme, the backstop body is provided with the force arm installation part, the force arm installation part is provided with the pin shaft hole corresponding to the connecting hole arranged at one end of the force arm, and the pin shaft simultaneously penetrates through the pin shaft hole in the force arm installation part and the connecting hole in the force arm and enables the outer ring of the backstop body to be detachably connected with the force arm through the cotter pin. In the technical scheme, the force arm is of an I-shaped steel structure. The utility model has the advantages that after the backstop force arm structure of the mining belt conveyor is adopted, as the backstop force arm structure comprises the anti-rotation stop block which is buried on the foundation in advance, one end of the force arm is detachably connected with the outer ring body of the backstop body, the other end of the force arm is inserted into the inner hole of the anti-rotation stop block, and meanwhile, the force arm is in loose fit with the anti-rotation stop block, When the mining belt conveyor is in normal operation, the inner ring of the backstop body and the shaft are in forward operation, the outer ring of the backstop body is in a stop state, the force arm is connected with the outer ring of the backstop body, thus the backstop body is also in a static state, When the transmission shaft of the mining belt conveyor rotates reversely, if the inner ring of the backstop body continues to try reversely, the backstop moment is transmitted to the force arm, the force arm limits the reverse operation of the backstop, the anti-rotation stop block simultaneously limits the other end of the force arm, and the rotation of the anti-rotation stop block in the anti-rotation stop block plays a role of stopping the reverse rotation of the shaft, The utility model designs the non-return device body and the force arm into a split structure, and the connection between the outer ring of the non-return device body and the force arm is detachable connection, thereby not only ensuring that the force arm and the non-return device body form firm connection and preventing looseness or falling, but also enabling the other end of the force arm to be freely inser