Title:
INSPECTION DEVICE OF BEARING FOR PASSENGER CONVEYOR, AND INSPECTION METHOD OF BEARING FOR PASSENGER CONVEYOR
Document Type and Number:
Japanese Patent JP2019158514
Kind Code:
A
Abstract:
To remove the vibration from an object other than a bearing for a passenger conveyor and to accurately inspect the degradation of the bearing, when the bearing is inspected.SOLUTION: This inspection device includes: a vibration sensor 11 for detecting a vibration of a bearing 5 of a passenger conveyor; a magnetic sensor 13 for detecting a magnetism generated from the bearing; and a determination processing unit 16 for determining the state of the bearing on the basis of an output signal of the vibration sensor. Here, the determination processing unit 16 extracts a vibration component that is generated by the degradation of the bearing 5 including the rolling element or by the degradation of a shaft 41 of the bearing 5 or a member rotating in interlock with the shaft 41, from the state of an output signal of the vibration sensor 11, in the time of one revolution of the rolling element in the bearing 5 that is calculated from the output signal of the magnetic sensor 13.SELECTED DRAWING: Figure 2
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Inventors:
MATSUMOTO TOSHIAKI
KODAIRA NORIMI
KODAIRA NORIMI
Application Number:
JP2018044280A
Publication Date:
September 19, 2019
Filing Date:
March 12, 2018
Export Citation:
Assignee:
HITACHI BUILDING SYST CO LTD
International Classes:
G01M13/04; B66B29/00
Domestic Patent References:
| JP2000055789A | 2000-02-25 | |||
| JP2017181267A | 2017-10-05 | |||
| JP2013224853A | 2013-10-31 | |||
| JP2017194368A | 2017-10-26 | |||
| JP2005265035A | 2005-09-29 |
Attorney, Agent or Firm:
Shinto International Patent Office