Title:
軸受検査装置
Document Type and Number:
Japanese Patent JP6975031
Kind Code:
B2
Abstract:
To inspect securely the condition of a bearing by at least detecting a change of magnetism generated from the bearing.SOLUTION: Included are: a vibration sensor that detects vibration of a bearing; a plurality of magnetic sensors that detect magnetism generated from the bearing; and a determination unit that determines a condition of the bearing based on an output signal of the vibration sensor and an output signal of each magnetic sensor. The determination unit performs a first determination of whether a first value obtained from an output signal of the vibration sensor is within the range of a first reference value and a second determination of whether a second value obtained from an output signal of each magnetic sensor is within the range of a second reference value, and determines at least the presence or absence of normality of the bearing from the result of the first determination and the result of the second determination.SELECTED DRAWING: Figure 1
Inventors:
Akihiko Kadori
Takako Mizoguchi
Norimi Kodaira
Yuji Onishi
Toshiaki Matsumoto
Rika Baba
Takako Mizoguchi
Norimi Kodaira
Yuji Onishi
Toshiaki Matsumoto
Rika Baba
Application Number:
JP2017236339A
Publication Date:
December 01, 2021
Filing Date:
December 08, 2017
Export Citation:
Assignee:
Hitachi Building System Co., Ltd.
International Classes:
G01M13/04; B66B27/00; B66B31/00; F16C41/00
Domestic Patent References:
| JP2010151773A | ||||
| JP2004198375A | ||||
| JP2004004028A | ||||
| JP2015514220A | ||||
| JP2004150504A | ||||
| JP2008096410A | ||||
| JP2004170318A |
Foreign References:
| US20150082887 |
Attorney, Agent or Firm:
Patent Business Corporation Sunnext International Patent Office