Non-contact elevator slip amount detection device

By combining a non-contact tachometer and a rotation angle measuring device, the problems of accuracy and installation complexity in elevator slip measurement were solved, achieving high-precision and low-cost slip measurement.

CN224394353UActive Publication Date: 2026-06-23HUZHOU SPECIAL EQUIP TESTING RES INST (HUZHOU ELEVATOR EMERGENCY RESCUE COMMAND CENT) +1
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Patent Information

Application Number
CN202521378410.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-02
Publication Date
2026-06-23
Estimated Expiration
2035-07-02

AI Technical Summary

Technical Problem

Existing methods for detecting elevator slip are inefficient and inaccurate, and traditional contact measuring devices are easily damaged and complex to install, making it difficult to meet the requirements for high-precision detection.

Method used

A non-contact speed measuring instrument and a rotation angle measuring device are used to calculate the slippage of the rope sheave by measuring the instantaneous speed of the traction rope and the total rotation angle of the traction sheave. The device is externally installed to avoid wear.

Benefits of technology

It improves the accuracy and precision of measurements, facilitates the layout and installation of the device, reduces maintenance costs, and adapts to the testing needs of different types of traction sheaves.

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Abstract

The utility model discloses a non-contact type elevator slip amount detection device, which relates to the technical field of detection, and comprises a non-contact type speed measuring instrument and a rotation angle measuring device, the non-contact type speed measuring instrument is used for measuring the instantaneous speed of a traction rope of a traction system; the rotation angle measuring device is used for being arranged outside a traction wheel of the traction system and used for measuring the total rotation angle of the traction wheel. According to the utility model, measurement accuracy and measurement precision can be improved, and arrangement and installation are facilitated.
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