Title:
LOAD ESTIMATING DEVICE FOR ROLLING BEARING, CONTROL DEVICE FOR MECHANICAL DEVICE PROVIDED WITH ROLLING BEARING, LOAD ESTIMATING METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2022/264905
Kind Code:
A1
Abstract:
This load estimating device for a rolling bearing comprises: a vibration sensor for measuring vibrations of the rolling bearing during rotation; a rotational speed sensor for measuring the rotational speed of the rolling bearing during rotation; a deriving means for deriving a vibration value for a predetermined vibration frequency, using vibration information measured by the vibration sensor; and an estimating means for estimating a load acting on the rolling bearing, said load corresponding to the rotational speed measured by the rotational speed sensor and the vibration value derived by the deriving means, using a table defining a correspondence relationship between the load acting on the rolling bearing, the vibration value for the predetermined vibration frequency, and the rotational speed.
Inventors:
YUKAWA KINJI (JP)
Application Number:
PCT/JP2022/023202
Publication Date:
December 22, 2022
Filing Date:
June 08, 2022
Export Citation:
Assignee:
NSK LTD (JP)
International Classes:
F03D7/04; F03D80/70; G01H17/00; G01M13/04; G01M13/045
Domestic Patent References:
| WO2019012788A1 | 2019-01-17 |
Foreign References:
| JP2019132773A | 2019-08-08 | |||
| JP2005283323A | 2005-10-13 | |||
| JP2010159710A | 2010-07-22 | |||
| JP2018179735A | 2018-11-15 | |||
| JP2006300086A | 2006-11-02 | |||
| CN205876607U | 2017-01-11 | |||
| JP2010159710A | 2010-07-22 | |||
| JP2021100416A | 2021-07-08 | |||
| JP2021143992A | 2021-09-24 |
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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