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Patent Searching and Data


Title:
GEARBOX WITH NOVEL BEARING CONFIGURATION FOR RAILWAY VEHICLE
Document Type and Number:
WIPO Patent Application WO/2020/134510
Kind Code:
A1
Abstract:
A gearbox for a railway vehicle, comprising a driving shaft (120), a driven shaft (180), a first bearing seat (169) and a second bearing seat (183). The gearbox further comprises a first roller bearing (150) provided between the first bearing seat (169) and the driving shaft (120), a ball bearing (130), a bearing inner retaining ring (149) and a bearing outer retaining ring (140) for drainage. The bearing inner retaining ring (149) and the bearing outer retaining ring (140) are provided between the first roller bearing (150) and the ball bearing (130) along the axial direction of the driving shaft (120), a first drainage channel is provided on the bearing outer retaining ring (140), and a second drainage channel (162) is provided on the first bearing seat (169). A lubricant can sequentially pass through the second drainage channel (162) and the first drainage channel and be guided from the outside of the first bearing seat (169) into the first roller bearing (150) and the ball bearing (130). The gearbox can greatly improve the lubrication performance on the first roller bearing and the ball bearing on the driving shaft, and is particularly suitable for a low temperature working condition.

Inventors:
LI FENG (CN)
QUE HONGBO (CN)
ZHAO HUI (CN)
LI HUA (CN)
JIN SIQIN (CN)
Application Number:
PCT/CN2019/113951
Publication Date:
July 02, 2020
Filing Date:
October 29, 2019
Export Citation:
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Assignee:
CRRC QISHUYAN INST CO LTD (CN)
International Classes:
F16H57/021; B61C9/38; F16H1/04; F16H57/02; F16H57/04
Foreign References:
CN106195127A2016-12-07
CN202451797U2012-09-26
CN205446632U2016-08-10
CN106481792A2017-03-08
DE19930804A12001-01-18
US5884525A1999-03-23
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (CN)
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