Title:
APPARATUS AND METHOD FOR DETERMINING TENSION ABNORMALITY IN V-BELT, AND ESCALATOR
Document Type and Number:
WIPO Patent Application WO/2019/049796
Kind Code:
A1
Abstract:
An apparatus for determining tension abnormality in a V-belt according to the present invention is provided with: a load torque generation unit that generates, in a V-belt which is wound and extended between a driving pulley and a driven pulley, load torque between the V-belt and the driving pulley or the driven pulley; a sound pressure measurement device that measures sound pressure generated by the V-belt; a storage unit that stores information regarding minimum load torque which causes the V-belt to generate an abnormal sound at the attachment tension of the V-belt serving as a criterion for abnormality determination; a load torque control unit that causes the load torque generation unit to generate the minimum load torque in accordance with the information regarding the minimum load torque, which has been stored in the storage unit; and a tension abnormality determination unit that determines whether a tension abnormality has occurred on the basis of the sound pressure measured by the sound pressure measurement device when the minimum load torque is generated.
Inventors:
OKUDA RYU (JP)
OSHIMA RYUHEI (JP)
YAMASA REIJI (JP)
OSHIMA RYUHEI (JP)
YAMASA REIJI (JP)
Application Number:
PCT/JP2018/032454
Publication Date:
March 14, 2019
Filing Date:
August 31, 2018
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
MITSUBISHI ELECTRIC BUILDING TECHNO SERVICE CO LTD (JP)
MITSUBISHI ELECTRIC BUILDING TECHNO SERVICE CO LTD (JP)
International Classes:
F16H7/00; G01L5/10
Foreign References:
| JPH06281517A | 1994-10-07 | |||
| JPH11262932A | 1999-09-28 | |||
| JP2001183252A | 2001-07-06 | |||
| JP2015203484A | 2015-11-16 |
Attorney, Agent or Firm:
SOGA, Michiharu et al. (JP)
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