Title:
締付けボルトの締付けトルク特定装置と締付けトルク特定方法
Document Type and Number:
Japanese Patent JP7033957
Kind Code:
B2
Abstract:
To provide a fastening bolt fastening torque specifying device and fastening torque specifying method with which it is possible to specify the fastening torque in the current state of a fastening bolt without directly touching the existing fastening bolt.SOLUTION: Provided is a fastening bolt fastening torque specifying device 100 for specifying the fastening torque of a fastening bolt B with a body P to be fastened is fastened by a nut N via a washer W, the device comprising: exciting means 10 for shaking the body P to be fastened; vibrometers 20, 30 for measuring the vibration of the body P to be fastened and the washer W; and a computer 50 in which a conversion program for converting the measured data by the vibrometers 20, 30 into a frequency component is stored, and also relation data representing the relation of the fastening torque of the fastening bolt B and the frequency of the washer W is stored.SELECTED DRAWING: Figure 1
Inventors:
Takahiro Kondo
Application Number:
JP2018037940A
Publication Date:
March 11, 2022
Filing Date:
March 02, 2018
Export Citation:
Assignee:
Taisei Corporation
International Classes:
G01L5/24; B25B23/14; F16B31/00; G01M13/00
Domestic Patent References:
| JP2005069312A | ||||
| JP2006337102A | ||||
| JP58202781A | ||||
| JP3068834A | ||||
| JP2018013361A |
Foreign References:
| CN2602183Y |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Tadahiko Ito