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Patent Searching and Data


Title:
BEARING ABNORMALITY DIAGNOSTIC METHOD AND DIAGNOSTIC SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/088564
Kind Code:
A1
Abstract:
Provided is a bearing abnormality diagnostic method that comprises: a vibration acceleration sensor (12) that detects vibration acceleration generated from a bearing (11); a plurality of bandpass filters (213), in the number needed for a plurality of different diagnoses, that respectively extract diagnostic signals of different frequency bands; and diagnostic units (22) that diagnose a plurality of types of abnormalities of the bearing (11), on the basis of the plurality of diagnostic signals extracted by the bandpass filters (213).

Inventors:
YOSHIDA KAZUHIRO (JP)
Application Number:
PCT/JP2017/040835
Publication Date:
May 17, 2018
Filing Date:
November 14, 2017
Export Citation:
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Assignee:
NSK LTD (JP)
International Classes:
G01M13/04; F16C19/52
Foreign References:
JPH03221818A1991-09-30
US20110041611A12011-02-24
JPH01172622A1989-07-07
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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