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Patent Searching and Data


Title:
REDUCTION GEAR
Document Type and Number:
WIPO Patent Application WO/2019/078018
Kind Code:
A1
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 (1, 2, 11, 12), which are disposed in mutually differing positions at the sides of output gears (26, 27) having helical threads (35a, 37a) 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 (5), which determines the amount of tilt of the gears (26, 27) on the basis of the amount of displacement detected by the plurality of displacement sensors (1, 2, 11, 12) during rotation of the output gears (26, 27) when the output gears are linked to an output shaft (25) by a linking mechanism (32).

Inventors:
OKADA TORU
YAMAGUCHI KAZUO
KANAI KEITA
Application Number:
PCT/JP2018/037180
Publication Date:
April 25, 2019
Filing Date:
October 04, 2018
Export Citation:
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Assignee:
KOBE STEEL LTD (JP)
International Classes:
G01B21/22; F16H3/089; F16C19/52
Foreign References:
JP2010159826A2010-07-22
JP2007205469A2007-08-16
JP2004218681A2004-08-05
JP2008275506A2008-11-13
US20020157470A12002-10-31
JP2010159826A2010-07-22
Other References:
See also references of EP 3699550A4
Attorney, Agent or Firm:
KOTANI, Etsuji et al. (JP)
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