Title:
PLANETARY GEARBOX AND BEARING CLEARANCE MONITORING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/258075
Kind Code:
A1
Abstract:
A planetary gearbox and a bearing clearance monitoring system. The planetary gearbox comprises a planet gear assembly (20), a planet carrier (33), a first sensor assembly (40), and a second sensor assembly (50). The planet gear assembly (20) comprises a first ring and a second ring sleeved with each other. The first sensor assembly (40) comprises a first sensor (41) and a first antenna (42). The first sensor (40) is fixed on the first ring and used for measuring the temperature of the first ring. The second sensor assembly (50) comprises a second sensor (51) and a second antenna (52). The second sensor (51) is fixed on the second ring and used for measuring the temperature of the second ring. The second antenna (52) is annular and is fixed on an axial end face of a planetary gear ring (21) of the planet gear assembly (20). By means of the planetary gearbox, the temperature of first and second rings of a bearing can be directly measured, thereby facilitating monitoring a bearing clearance.
Inventors:
GUAN RAN (CN)
CHEN XIANGKE (CN)
XIA XIANGRUI (CN)
CHEN XIANGKE (CN)
XIA XIANGRUI (CN)
Application Number:
PCT/CN2019/093009
Publication Date:
December 30, 2020
Filing Date:
June 26, 2019
Export Citation:
Assignee:
SCHAEFFLER TECHNOLOGIES AG (DE)
GUAN RAN (CN)
GUAN RAN (CN)
International Classes:
G01M13/04; F16H57/02; G01K13/00
Domestic Patent References:
| WO2019011883A1 | 2019-01-17 |
Foreign References:
| CN101375053A | 2009-02-25 | |||
| CN1437709A | 2003-08-20 | |||
| CN201561852U | 2010-08-25 | |||
| CN203616121U | 2014-05-28 | |||
| CN1230245A | 1999-09-29 |
Attorney, Agent or Firm:
LINDA LIU & PARTNERS (CN)
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