Angle displacement measuring device and elevator sliding detection method and system

Abstract

The invention provides an angle displacement measuring device and an elevator sliding detection method and system. The device comprises a speed measuring wheel, a photoelectric encoder, a fixing device and a coupler. The speed measuring wheel and the photoelectric encoder are connected through the coupler, the speed measuring wheel makes contact with a to-be-measured object, the to-be-measured object rotates to drive the speed measuring wheel to rotate in order to drive a shaft of the photoelectric encoder to rotate, and the photoelectric encoder acquires the angle displacement of the to-be-measured object. The fixing device is used for fixing the speed measuring wheel and the photoelectric encoder. The structure is light, the mechanical freedom degree is high, normal work of the to-be-measured object cannot be affected with the method of external connection with the photoelectric encoder, and the application range is wider.

Description

technical field [0001] The invention relates to the technical field of elevator detection, in particular to an angular displacement measuring device, a method and a system for detecting elevator slippage. Background technique [0002] Slip is an inherent characteristic of the wire rope in a traction elevator, and its essence is the difference in elongation of the elastic body under the action of a tension difference; slippage is a failure phenomenon caused by insufficient friction between the wire rope and the rope groove , can be eliminated and avoided. [0003] Since the wire rope slippage is an inherent characteristic of the system and cannot be eliminated, it is particularly important to detect the amount of slippage. Regularly measure and monitor the slippage of the steel wire rope. Once it is found to be significantly different from the original slippage, it needs to be taken seriously because the traction conditions of the system have changed. [0004] Because my co...

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Problems solved by technology

[0005] Most of the existing methods of measuring the slippage of the elevator traction sheave and the steel wire rope are manually calibrated and then observed with the naked eye. This method is time-consuming, labor-intensive, and has subjective judgments, which cannot guarantee the accuracy of the measurement.

[0006] In addition, there is also a solution to measure the slippage of the two by directly installing the photoelectric encoder on the traction sheave and the steel wire rope. The disadvantage of this technology is that the surface of the steel wire rope is rough and the amount of wear is large. The direct contact between the photoelectric encoder and the wire rope To obtain the slippage of the wire rope, it is not conducive to long-term and all-weather detection

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