The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 08, 2022
Filed:
Oct. 04, 2018
Kobe Steel, Ltd., Hyogo, JP;
Kobe Steel, Ltd., Hyogo, JP;
Abstract
Provided is a reduction gear comprising a bearing state detection device capable of detecting the state of a rolling bearing that rotates integrally with an output shaft and an output gear during power transmission. The bearing state detection device comprises: a plurality of displacement sensors (), which are disposed in mutually differing positions at the sides of output gears () having helical threads () formed in the outer peripheral surfaces, and which detect the amount of axial displacement of the side surfaces of the output gears; and a processing unit (), which determines the amount of tilt of the gears () on the basis of the amount of displacement detected by the plurality of displacement sensors () during rotation of the output gears () when the output gears are linked to an output shaft () by a linking mechanism ().