Method for measuring creep distance between traction sheave groove and steel wire rope of elevator

Abstract

The invention provides a method for measuring the creep distance between a traction sheave groove and a steel wire rope of an elevator. The method comprises the following steps that a vibration signal of an elevator car is acquired through a vibration sensor, and the vibration signal is collected and preprocessed by using a data acquisition instrument; angular displacement signals of a traction wheel in the ascending and descending processes are collected through a pulse encoder arranged on the traction wheel; the operation distance of the steel wire rope is obtained based on the preprocessed vibration signal, and the operation distance of the traction sheave groove is calculated based on the angular displacement signals collected by the pulse encoder; and the creep distance between the traction sheave groove and the steel wire rope is obtained by subtracting the operation distance of the steel wire rope and the operation distance of the traction sheave groove. According to the method, the creep distance between the steel wire rope and the traction wheel can be well and accurately measured, and the traction force of a traction machine and whether faults exist or not can be judged.

Description

technical field [0001] The invention relates to the technical field of elevator maintenance, in particular to a measuring system and method for the creeping distance between a traction sheave groove and a wire rope. Background technique [0002] With the development of urbanization, more and more high-rise buildings are built, and elevators are an indispensable part of high-rise buildings. While the use of elevators brings convenience to people, the personal injury and economic losses caused by the failure of the elevator itself also increase with the increase of its quantity. [0003] The traction wire rope and the traction machine are essential parts of the traction elevator. With the increase of the service time of the elevator, slipping between the wire rope and the traction wheel is prone to occur, and it will endanger people's lives in severe cases. After research, the cause of the slippage of the traction wire rope is insufficient traction force. Through the analysi...

AI Technical Summary

Problems solved by technology

[0003] The traction wire rope and the traction machine are essential parts of the traction elevator. With the increase of the use time of the elevator, slipping between the wire rope and the traction wheel is prone to occur, and it will endanger people's lives in severe cases.

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