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Title:
LOW-FLOOR VEHICLE, BOGIE AND SHAFT END STRUCTURE THEREOF, AND FRICTION DISC
Document Type and Number:
WIPO Patent Application WO/2020/143363
Kind Code:
A1
Abstract:
A low-floor vehicle, a bogie and a shaft end structure thereof, the shaft end structure comprising a speed measuring gear (1) and a friction disc (2), wherein the speed measuring gear (1) that has a central through hole (11) is used to fixedly connect to an end face of a vehicle wheel (10), and an outer end face of the speed measuring gear (1) is provided thereon with several speed measuring teeth (121) that are uniformly distributed in the circumferential direction; the friction disc (2) is fixedly connected to the speed measuring gear (1), and is specifically arranged on the outer end face of the speed measuring gear (1) on the radial outer periphery of the speed measuring teeth (121); a shaft end front cover (3) is mounted on an outer side of the speed measuring gear (1) and the friction disc (2), and a central part of the body of the shaft end front cover (3) is used to traverse the central through hole (11) of the speed measuring gear (1) and fixedly connect to a shaft end of an axle (20); and the shaft end front cover (3) is provided thereon with a speed sensor interface (31) and a brush interface (31) that are arranged corresponding to the speed measuring teeth (121) and the friction disc (2) respectively. The shaft end structure of the bogie is optimized, making full use of the space of the shaft end to integrate grounding and speed measuring functions into one bogie shaft end. The structure is simple and reliable, which reduces the degree of complexity of the bogie design and further reduces the difficulty of wiring.

Inventors:
ZHANG HUIJIE (CN)
LIU WEI (CN)
ZHOU XIAOJIANG (CN)
LIU YANG (CN)
ZHANG YUEJUN (CN)
Application Number:
PCT/CN2019/122626
Publication Date:
July 16, 2020
Filing Date:
December 03, 2019
Export Citation:
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Assignee:
CRRC QINGDAO SIFANG CO LTD (CN)
International Classes:
B61F5/50; G01P3/481
Domestic Patent References:
WO2001045990A12001-06-28
Foreign References:
CN109733433A2019-05-10
CN109703589A2019-05-03
CN108058716A2018-05-22
CN108045391A2018-05-18
CN104290770A2015-01-21
CN2255046Y1997-05-28
CN208239472U2018-12-14
US5589767A1996-12-31
CN201910023564A2019-01-10
CN201910040119A2019-01-16
Other References:
See also references of EP 3909828A4
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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