Mine single-rope hoisting balance wheel brake rope anti-case-crashing device

Abstract

The invention aims to provide a mine single-rope hoisting balance wheel brake rope anti-case-crashing device and relates to the technical field of mine safety devices. A hoisting container is connected with another hoisting balance container through more than two brake ropes and more than two corresponding balance wheels; each balance wheel is arranged on a balance wheel axle; the balance wheel axle is arranged on an elastic bearing device through a bearing; the wheel edge of the balance wheel is provided with a friction brake surface; a damper brake is arranged below the balance wheel; and an idle stroke distance exists in the upward direction and the downward direction of the damper brake and the friction brake surface of the balance wheel. The device not only keeps the advantage of the less investment cost of single-rope hoisting, but also has the safety property of multi-rope falling prevention protection, can completely solve the problems that a falling protector cannot be actuated when rope breaking case crashing or rope sliding case crashing happen in a traditional falling protector system, buffer brake force is uncertain, and the buffer brake force is difficult to be accurately calibrated in an use site, and has the advantages of strong safety and reliability and wide application range.

Description

technical field [0001] The invention relates to the technical field of mine safety devices. Background technique [0002] In the single-rope hoisting system of the mine, the accident of people falling into the tank caused heavy injuries and severe social impact, which is a serious and vicious casualty accident. Even if there is no passenger or a tank accident, the damage will be serious, the recovery period of production stop will be long, the economic loss will be large, and a major safety accident will be caused. Therefore, in the mine single-rope hoisting system, the prevention of tank falling accidents is a prominent focus of safety production supervision. [0003] At present, in the mine single-rope hoisting system, to prevent the accident of breaking the rope and falling into the tank, the catch-type fall arrester installed on the cage is adopted. Brake on the tank road or special brake rope to prevent the cage from falling. Whether it is a wooden tank or a wire rop...

AI Technical Summary

Problems solved by technology

Due to the harsh working conditions of the mine, the use and aging of the brake wire rope lead to corrosion, damage and changes in anti-rust materials, etc., which directly affect the deformation resistance of the brake wire rope when it is pulled. The steel rope spiral buffer has the problem of uncertain braking force. Moreover, it is difficult to accurately calibrate the braking force of the steel rope helical buffer in the field of use.

At present, the buffering distance of the protection system for broken ropes in many mines is too small in field tests, and there is a problem that the braking force of the buffer is too large. Once a broken rope accident occurs, it may cause excessive deceleration and damage the health of the occupants.

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