SEALING COMPONENT, GEARBOX AND ROBOT

WIPO Patent Application WO/2022/193061

A1

Embodiments of the present disclosure provide a sealing component, a gearbox and a robot. The sealing component comprises a base ring arranged in an internal chamber of the gearbox adjacent to a bearing for supporting a main shaft of the gearbox, the base ring coupled to the main shaft to rotate with the main shaft; and at least one stirring member radially protruding from a periphery of the base ring and each comprising a pair of inclined stirring surfaces inclined in opposite directions, so that a circumferential distance between the pair of inclined stirring surfaces is gradually reduced in an axial direction away from the bearing. With the pair of inclined stirring surfaces, during the operation of the gearbox, the lubricant trapped between the end part and the main shaft can be pushed out to re -participate in the lubricating and cooling of other components, thereby increasing the utilization rate of the lubricant. In addition, the assembling complexity of the gearbox can be reduced due to the absence of the dynamic seal. Furthermore, the pressure in the internal chamber may be reduced and thus the sealing performance of the gearbox may be further improved.

MA GONGYAO (CN)
ZHANG QIANHU (CN)
FU XINGUO (CN)

PCT/CN2021/080764

September 22, 2022

March 15, 2021

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ABB SCHWEIZ AG (CH)
MA GONGYAO (CN)
ZHANG QIANHU (CN)
FU XINGUO (CN)

F16N31/00; F16H57/04; H02K5/16

CN109296652A	2019-02-01
CN106533031A	2017-03-22
CN207339507U	2018-05-08
CN212486269U	2021-02-05
JP2001050285A	2001-02-23

KING & WOOD MALLESONS (CN)

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