Title:
WHEEL DRIVE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/047290
Kind Code:
A1
Abstract:
A wheel drive system, comprising a wheel-side reducer. The wheel-side reducer comprises a frame (4), a torsion tube (6) connected to a wheel and a sealing structure provided between the frame (4) and the torsion tube (6); the sealing structure comprises a static ring (15) fixed to the frame (4) and a moving ring (16) that is disposed opposite to the static ring (15) and is fixed to the torsion tube (6); an end surface of the static ring (15) is provided with multiple rings (15-1) in the radial direction from outside to inside, and an inner circle of the innermost ring is tightly fitted with a throttle ring (21) and a framework oil seal (22); and the moving ring (16) comprises a lower inner ring (16-7), an outer circle of the lower inner ring (16-7) is in contact with the framework oil seal (22) to form a framework oil seal (C) and form a throttle ring seal (D) at a position opposite to the throttle ring (21).
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Inventors:
ZHANG ZAILI (CN)
DUAN ZHENZHONG (CN)
WANG XING (CN)
XU SHA (CN)
WANG WEIKANG (CN)
DUAN ZHENZHONG (CN)
WANG XING (CN)
XU SHA (CN)
WANG WEIKANG (CN)
Application Number:
PCT/CN2020/102789
Publication Date:
March 18, 2021
Filing Date:
July 17, 2020
Export Citation:
Assignee:
CRRC QISHUYAN INST CO LTD (CN)
International Classes:
F16H57/029; B60B11/06; B60B27/04; B60B30/06; B60K7/00; F16J15/16
Foreign References:
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| CN210437004U | 2020-05-01 | |||
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| CN103287209A | 2013-09-11 | |||
| CN103287209A | 2013-09-11 | |||
| CN103402787A | 2013-11-20 | |||
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| CN103380019A | 2013-10-30 | |||
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| CN204140391U | 2015-02-04 | |||
| AU629576B2 | 1992-10-08 | |||
| CN205173045U | 2016-04-20 | |||
| CN105465289A | 2016-04-06 | |||
| US4049320A | 1977-09-20 |
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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