Elevator safety maintenance method

Abstract

The invention discloses an elevator safety maintenance method. The elevator safety maintenance method comprises the steps that (1) the initial sliding distance of an elevator is acquired in a self-learning mode; (2) the actual sliding distance of the elevator is detected regularly; (3) corresponding processing is conducted on the elevator according to the relation among the initial sliding distance, the actual sliding distance and the preset critical sliding distance. According to the elevator safety maintenance method, a testing method is simple, and data analysis is conveniently conducted; due to the fact that the working condition of the elevator is detected regularly, the problems of the elevator are discovered in advance, maintenance and repair are timely conducted on the elevator, and the hidden danger is prevented before happening. Compared with the phenomenon that in the prior art, the elevator is processed only when the elevator has a fault, the elevator safety maintenance method has higher safety and operability.

Description

technical field [0001] The invention belongs to the technical field of elevator safety design, and in particular relates to an elevator safety maintenance method. Background technique [0002] With the development of society and the advancement of science and technology, elevators play an increasingly important role in people's lives, but because most of the safety measures of elevators are ultimately achieved by braking, the reliability of braking Detection is very important. [0003] In the prior art, the safety monitoring of elevator braking is generally by inputting a periodic torque current to the motor, and judging whether the braking torque is sufficient according to whether the torque when the motor rotates is within the torque range of the braking design. . When it is judged that the brake of the elevator fails, a zero-speed signal is sent to the elevator motor to stop the elevator car to ensure that people entering and leaving the elevator car can escape safely. ...

AI Technical Summary

Problems solved by technology

[0006] (1) Same as other methods in the prior art, this method can only play a protective role when the elevator breaks down, and the protection risk is relatively large. When the controller and the motor brake themselves fail, it is impossible to use this method to completely safety protection, accidents will still happen

[0007] (2) In this technical solution, due to the continuous detection of the actual running state of the elevator car, the actual load of the car cannot be fully considered in the design stage, resulting in a large difference between the final protection effect and the ideal protection effect of the design

[0008] At present, there is no literature report on the daily maintenance method of elevator safety

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