PRIMARY SUSPENSION DEVICE, BOGIE AND RAILWAY VEHICLE

Title:

PRIMARY SUSPENSION DEVICE, BOGIE AND RAILWAY VEHICLE

Document Type and Number:

WIPO Patent Application WO/2021/031398

Kind Code:

A1

Abstract:

Disclosed are a primary suspension device (3), a bogie and a railway vehicle. The bogie comprises: a framework provided with two parallel side beams (1) extending in the longitudinal direction thereof; an annular hoop (32) connected to the bottom surfaces of the end portions of the side beams (1), with the central line of the annular hoop (32) being extended in the transverse direction thereof; an axle box (2) located in a space enclosed by the annular hoop (32), with the central line of the axle box (2) coinciding with the central line of the annular hoop (32); and a plurality of buffer blocks (31) uniformly arranged between the annular hoop (32) and the axle box (2). By means of the primary suspension device (3), the bogie and the railway vehicle provided in the invention, the height of the framework can be reduced on the premise that the preset strength and buffer energy absorption effects are achieved.

Inventors:

ZHANG LIXIN (CN)
SUN XIUYU (CN)
ZHEN JIANKE (CN)
BI YUEKUAN (CN)
ZHANG LIJUN (CN)
ZHANG JIE (CN)
HAO TAOGUANG (CN)

Application Number:

PCT/CN2019/117332

Publication Date:

February 25, 2021

Filing Date:

November 12, 2019

Export Citation:

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Assignee:

CRRC TANGSHAN CO LTD (CN)

International Classes:

B61F5/30

Foreign References:

US4438703A	1984-03-27
CN108463389A	2018-08-28
CN201276119Y	2009-07-22
CN202016475U	2011-10-26
GB813237A	1959-05-13
GB822358A	1959-10-21
CN202847716U	2013-04-03
CN207875663U	2018-09-18

Other References: