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1. (WO2017150362) DECELERATOR EQUIPPED WITH ELECTRIC MOTOR

Pub. No.:    WO/2017/150362    International Application No.:    PCT/JP2017/007022
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Sat Feb 25 00:59:59 CET 2017
IPC: F16H 1/32
H02K 7/116
Applicants: NIDEC-SHIMPO CORPORATION
日本電産シンポ株式会社
Inventors: OKAMURA, Kikuo
岡村 暉久夫
INOUE, Hitoshi
井上 仁
Title: DECELERATOR EQUIPPED WITH ELECTRIC MOTOR
Abstract:
This decelerator equipped with an electric motor includes: a casing; an electric motor that produces a rotary movement with respect to the casing; a deceleration mechanism that is positioned more radially inward than the electric motor, and that transmits the rotary movement obtained from the electric motor while decelerating said rotary movement; an output part that rotates at a post-deceleration rotation speed; a first bearing that rotatably connects the casing or a member fixed to the casing and a rotating part of the electric motor; and a second bearing that rotatably connects the casing and the output part. The deceleration mechanism includes: a non-circular cam of which the inner diameter varies depending on the position in the circumferential direction, and that rotates together with the rotating part of the electric motor; a flexible internal gear that deforms in response to the rotation of the non-circular cam; and a movable external gear that is provided to the output part. The second bearing is disposed more radially inward than the flexible internal gear.