Title:
LUBRICATING MECHANISM FOR PLANETARY GEAR TRAIN
Document Type and Number:
WIPO Patent Application WO/2023/207431
Kind Code:
A1
Abstract:
A lubricating mechanism for a planetary gear train. The planetary gear train comprises a planetary gear (1), a sliding bearing (3), a planetary gear shaft (2) and a thrust bearing (4), wherein a side surface of the thrust bearing (4) facing an end surface (11) of the planetary gear (1) is provided with at least one convex ring (41), the convex rings (41) being arranged at intervals in a radial direction; an end surface of the planetary gear (1) facing the thrust bearing (4) is provided with grooves (13) corresponding to the convex rings (41) on a one-to-one basis, each groove (13) being used for accommodating the convex ring (41) corresponding thereto; and an axial clearance (51) and a radial clearance (52) are formed between an outer surface of each convex ring (41) and an inner surface of each groove (13) opposite each convex ring, wherein the axial clearance (51) and the radial clearance (52) communicate with gaps. Due to the presence of the radial clearance (52) and the axial clearance (51), a path for lubricating oil is made tortuous and an appropriate oil pressure is more easily established at the gaps, thereby preventing the lubricating oil from being quickly discharged from the gaps, such that a sliding bearing always has a sufficient amount of lubricating oil, ensuring a lubricating effect of the sliding bearing.
Inventors:
NIU GUOWEI (CN)
ZHOU DAN (CN)
ZHOU DAN (CN)
Application Number:
PCT/CN2023/082810
Publication Date:
November 02, 2023
Filing Date:
March 21, 2023
Export Citation:
Assignee:
ZF WIND POWER TIANJIN CO LTD (CN)
ZF WIND POWER ANTWERPEN NV (BE)
ZF WIND POWER ANTWERPEN NV (BE)
International Classes:
F16H57/04
Foreign References:
| CN205446565U | 2016-08-10 | |||
| CN109667918A | 2019-04-23 | |||
| CN201560902U | 2010-08-25 | |||
| GB720358A | 1954-12-15 | |||
| CN210178874U | 2020-03-24 |
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE , LLC (CN)
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