HARMONIC REDUCER

WIPO Patent Application WO/2023/102830

A1

Embodiments of present disclosure relate to a harmonic reducer. The harmonic reducer comprises: a wave generator (10) adapted to be coupled to a motor shaft; a circular spline (30) adapted to be fixed on a base; a flex spline (20) arranged around the wave generator (10) and configured to be driven by the wave generator (10) to rotate along an inner surface of the circular spline (30); and a bearing (40) comprising a rotating member (41) and a fixing member (42), the rotating member (41) being coupled to the flex spline (20) and configured to rotate together with the flex spline (20), the fixing member (42) being coupled to the circular spline (30) and configured to support the rotating member (41), wherein a lubricant channel (50) is formed at least partly between an outer surface of the flex spline (20) and the bearing (40), and wherein the flex spline (20) is provided with at least one through hole (23) connecting the lubricant channel (50) with an inner space (60) inside the flex spline (20). The harmonic reducer according to embodiments of present disclosure is free of lubricant leakage without affecting the service life of the bearing.

WO/2021/182357	ELECTRIC ACTUATOR
JPH058116	[Name of device] Lubrication circuit of Kratchi

CAO XIAODONG (CN)
FU XINGUO (CN)
ZHU ZHU (CN)

PCT/CN2021/136817

June 15, 2023

December 09, 2021

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ABB SCHWEIZ AG (CH)
CAO XIAODONG (CN)
FU XINGUO (CN)
ZHU ZHU (CN)

F16H57/04

JP3233524U	2021-08-12
CN112969866A	2021-06-15
CN205938014U	2017-02-08
CN108591550A	2018-09-28
US20170051820A1	2017-02-23

KING & WOOD MALLESONS (CN)

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