Title:
ANTI-OVER-POSITIONING MOTOR BEARING DISASSEMBLY-FREE DISASSEMBLY AND ASSEMBLY METHOD
Document Type and Number:
WIPO Patent Application WO/2021/258603
Kind Code:
A1
Abstract:
An anti-over-positioning motor bearing disassembly-free disassembly and assembly method, comprising: pushing a rotating shaft along the axial direction to move the rotating shaft for a preset distance, to drive an inner sealing ring fixed on the distal surface of the rotating shaft to abut against the inner wall of a distal end cover in the axial direction; inserting a plurality of long ejector rods into a plurality of mounting holes reserved in a proximal end cover, and making the tail ends of the long ejector rods abut against a rotor pressing ring sleeved on the middle surface of the rotating shaft; disassembling and replacing a positioning bearing assembly at the distal end of the rotating shaft, and disassembling and replacing a non-positioning bearing assembly at the proximal end of the rotating shaft; and disassembling all the long ejector rods, and installing a positioning bearing seat and a distal end cover in the positioning bearing assembly in place, so that the rotating shaft is reversely reset in the axial direction. The present invention can achieve disassembly-free disassembly and assembly of the motor bearing, improve the disassembly and replacement efficiency, and avoid the situation that the positioning bearing is over-positioned in the disassembly and replacement process.
Inventors:
TANG LIMING (CN)
SHEN ZHENG (CN)
TANG ZIMOU (CN)
YANG XIASHA (CN)
LI GUANG (CN)
DENG XIANPING (CN)
CHEN BO (CN)
WANG JIBIN (CN)
ZHANG DAOLUI (CN)
ZHANG JIANAN (CN)
ZHAO JUNCHENG (CN)
WANG YIHUI (CN)
TAN ZUO (CN)
SHEN ZHENG (CN)
TANG ZIMOU (CN)
YANG XIASHA (CN)
LI GUANG (CN)
DENG XIANPING (CN)
CHEN BO (CN)
WANG JIBIN (CN)
ZHANG DAOLUI (CN)
ZHANG JIANAN (CN)
ZHAO JUNCHENG (CN)
WANG YIHUI (CN)
TAN ZUO (CN)
Application Number:
PCT/CN2020/126393
Publication Date:
December 30, 2021
Filing Date:
November 04, 2020
Export Citation:
Assignee:
CRRC ZHUZHOU ELECTRIC CO LTD (CN)
International Classes:
H02K15/14
Foreign References:
| CN111669020A | 2020-09-15 | |||
| CN110695920A | 2020-01-17 | |||
| CN110784055A | 2020-02-11 | |||
| CN103168411A | 2013-06-19 | |||
| US20020190598A1 | 2002-12-19 | |||
| CN202010574519A | 2020-06-22 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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