LOCKING SYSTEM AND MANUFACTURING METHOD THEREOF, BEARING ASSEMBLY AND ROBOT HAVING THE SAME

Title:

LOCKING SYSTEM AND MANUFACTURING METHOD THEREOF, BEARING ASSEMBLY AND ROBOT HAVING THE SAME

Document Type and Number:

WIPO Patent Application WO/2021/232191

Kind Code:

A1

Abstract:

A locking system (100) and a manufacturing method thereof, a bearing assemble and a robot having the same. The locking system (100) comprises a first nut (110) arranged on a shaft (220) and adapted to contact with an upper side of an inner ring (211) of the bearing (210). The locking system (100) further comprises a second nut (120) arranged on the shaft (220) and separated from the first nut (110) at a predetermined distance. The locking system (100) also comprises at least one locking screw (130) adapted to be screwed at least through a first through hole of the second nut (120) and a second through hole of the first nut (110) while the first through hole and the second through hole are aligned with each other, to thereby apply a force to a bearing (210) on the shaft (220) along an axial direction (X) of the shaft (220). In this way, a reliable fasten solution could be achieved, which may maintain the preload unchanged during the operating of the bearing assembly. Furthermore, this locking structure is easy for assembly and disassembly.

Inventors:

CHEN KAIWEI (CN)
SHA JIAJIE (CN)
CAO XIAODONG (CN)

Application Number:

PCT/CN2020/090850

Publication Date:

November 25, 2021

Filing Date:

May 18, 2020

Export Citation:

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Assignee:

ABB SCHWEIZ AG (CH)
CHEN KAIWEI (CN)
SHA JIAJIE (CN)
CAO XIAODONG (CN)

International Classes:

F16C35/063; F16B39/12

Foreign References:

CN211820433U	2020-10-30
CN203500245U	2014-03-26
CN202746380U	2013-02-20
CN102472316A	2012-05-23
CN105003549A	2015-10-28
CN208040971U	2018-11-02
CN108591282A	2018-09-28
DE102014213040A1	2015-06-25
GB510144A	1939-07-27

Other References: