Title:
REAR COVER TYPE DISC SPRING FORCE MONITORING SENSOR FOR BRAKE OF HOIST
Document Type and Number:
WIPO Patent Application WO/2020/063162
Kind Code:
A1
Abstract:
A rear cover type disc spring force monitoring sensor for a brake of a hoist, comprising a transparent cover (6) provided on a front disc type brake and a cover plate provided at an outer end surface of the transparent cover (6), wherein a center line of the transparent cover (6) coincides with a center line of the front disc type brake; an outer part of the transparent cover (6) is stepped; an outer annular groove is provided on the outer end surface; a plurality of strain gauges (7) arranged in pairs are uniformly distributed in the outer annular groove, and the strain gauges (7) arranged in pairs are closely attached to an outer diameter in the annular groove at a certain deflection angle α; the strain gauges (7) acquire the deformation of the sensor, the deformation of the sensor destroys the balance of a bridge, and the bridge outputs a voltage signal corresponding to a pressure. Without changing the installation size and structure of the original rear cover, the present invention achieves the bearing function of the original rear cover, and may also achieve the real-time online monitoring of a disc spring force P, thereby determining disc spring fatigue and fractures, achieving monitoring brake safety, and greatly improving the reliability of a disc brake of a hoist. The present rear cover type disc spring force monitoring sensor for the brake of the hoist has a simple structure, is convenient to install and perform maintenance, and has high measurement accuracy.
Inventors:
SUN ZHENG (CN)
ZHANG XIAOGUANG (CN)
XU GUIYUN (CN)
LIU ZHEN (CN)
JIANG QI (CN)
SUN JIASHENG (CN)
ZHANG RAN (CN)
LU JILI (CN)
ZHANG XIAOGUANG (CN)
XU GUIYUN (CN)
LIU ZHEN (CN)
JIANG QI (CN)
SUN JIASHENG (CN)
ZHANG RAN (CN)
LU JILI (CN)
Application Number:
PCT/CN2019/100512
Publication Date:
April 02, 2020
Filing Date:
August 14, 2019
Export Citation:
Assignee:
UNIV ZAOZHUANG (CN)
XUZHOU DAHENG MEASUREMENT AND CONTROL TECH CO LTD (CN)
UNIV CHINA MINING (CN)
XUZHOU DAHENG MEASUREMENT AND CONTROL TECH CO LTD (CN)
UNIV CHINA MINING (CN)
International Classes:
F16D66/00; B66D5/14
Foreign References:
| CN101059398A | 2007-10-24 | |||
| CN105909702A | 2016-08-31 | |||
| CN201037795Y | 2008-03-19 | |||
| CN109027071A | 2018-12-18 | |||
| CN101387323A | 2009-03-18 | |||
| KR20120006279U | 2012-09-12 | |||
| EP2522874A1 | 2012-11-14 |
Attorney, Agent or Firm:
JW IP LAW FIRM (CN)
Download PDF: