Title:
転がり機械要素の疲労診断方法および疲労診断システム
Document Type and Number:
Japanese Patent JP7371708
Kind Code:
B2
Abstract:
Provided is a method and a system capable of detecting a fatigue state before damage to a rolling bearing component occurs, and capable of performing diagnosis of the fatigue state without having to disassemble the rolling bearing.A magnetic sensor arranged close to a component of a rolling machine element measures magnetic flux density in the axial direction and/or radial direction of the component, then the amount of change in magnetic flux density is calculated based on a reference magnetic flux density corresponding to the magnetic flux density before the start of use of the component, and the progression of fatigue of the rolling machine element is determined from the amount of change.
Inventors:
Daisuke Kobayashi
Koichiro Ono
Koichiro Ono
Application Number:
JP2022007760A
Publication Date:
October 31, 2023
Filing Date:
January 21, 2022
Export Citation:
Assignee:
Nippon Seiko Co., Ltd.
International Classes:
G01N27/72; F16C19/52; F16C41/00; G01M13/04
Domestic Patent References:
| JP2018194433A | ||||
| JP200832672A | ||||
| JP201455941A | ||||
| JP2013160561A | ||||
| JP200832677A | ||||
| JP201376617A | ||||
| JP2009198251A | ||||
| JP2014219329A | ||||
| JP202024172A | ||||
| JP2019184540A |
Foreign References:
| US20030070492 | ||||
| US20110040495 |
Other References:
小熊規泰,軸受の残存疲労寿命予測 第1報:X線回折法の適用,KOYO Engineering Journal,2002年,No.161
Attorney, Agent or Firm:
Kiwa Patent Office
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