Title:
LOOSENESS MONITORING DEVICE AND SYSTEM FOR BOLTS OR NUTS
Document Type and Number:
WIPO Patent Application WO/2021/120989
Kind Code:
A1
Abstract:
Disclosed is a looseness monitoring device for bolts or nuts, the number of bolts or nuts is at least two, all the bolts or nuts are used for being fastened to a base (25), and the looseness monitoring device comprises an optical fiber deformation sensor (1, 21, 22), wherein the optical fiber deformation sensor (1, 21, 22) is provided with a deformation sensing section (12), and the deformation sensing section (12) of the optical fiber deformation sensor (1, 21, 22) is arranged to be located between the two bolts or nuts such that the deformation sensing section (12) can deform when any one of the two bolts or nuts rotates. Further disclosed is a looseness monitoring system for the bolts or nuts. According to the looseness monitoring device and system for the bolts or nuts provided, looseness and breakage conditions of adjacent fixing bolts or nuts can be found in time, such that timely maintenance is facilitated; meanwhile, the number of sensors is reduced, and the measurement accuracy is improved.
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Inventors:
ZHANG JIANPING (CN)
HUANG CHUNHUA (CN)
HUANG CHUNHUA (CN)
Application Number:
PCT/CN2020/130869
Publication Date:
June 24, 2021
Filing Date:
November 23, 2020
Export Citation:
Assignee:
AULTON NEW ENERGY AUTOM TECH GROUP (CN)
International Classes:
G01L5/24; G01B11/16; G01B11/26; G01L1/24
Foreign References:
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| US20140373636A1 | 2014-12-25 |
Attorney, Agent or Firm:
SHANGHAI BESHINING LAW OFFICE (CN)
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