Title:
ENERGY ABSORPTION STRUCTURE OF RAILWAY VEHICLE
Document Type and Number:
WIPO Patent Application WO/2023/179018
Kind Code:
A1
Abstract:
Disclosed is an energy absorption structure of a railway vehicle. The energy absorption structure is structurally characterized by comprising an annular gradient multi-cell energy absorption tube, a filling member, a mounting plate, and a guide rod, one end of the annular gradient multi-cell energy absorption tube being fixedly connected to the mounting plate. The annular gradient multi-cell tube comprises an outer circular tube, an inner circular tube, and arc-shaped ribs. The outer circular tube is nested on an outer ring of the inner circular tube. The outer circular tube is connected to the inner circular tube by means of a plurality of radially distributed arc-shaped ribs, and the plurality of arc-shaped ribs divide an annular area between the outer circular tube and the inner circular tube into a plurality of cell cavities. The cell wall thickness of each cell cavity gradually increases from a middle portion to edges of the two ends at a preset gradient, and each cell cavity is filled with the filling member. The guide rod is penetratingly arranged in the inner circular tube. The material of the railway vehicle energy absorption structure in the present invention has a high degree of utilization, a low trigger peak force, crushing force stability, and high specific energy absorption, and can meet the large dynamic energy dissipation requirements of railway vehicle collision.
Inventors:
KANG WEI (CN)
JIANG ZHONGCHENG (CN)
ZHOU LI (CN)
CHEN JINGJING (CN)
WANG YU (CN)
WAN PING (CN)
JIANG DAFA (CN)
JIANG ZHONGCHENG (CN)
ZHOU LI (CN)
CHEN JINGJING (CN)
WANG YU (CN)
WAN PING (CN)
JIANG DAFA (CN)
Application Number:
PCT/CN2022/127818
Publication Date:
September 28, 2023
Filing Date:
October 27, 2022
Export Citation:
Assignee:
CRRC ZHUZHOU LOCOMOTIVE CO LTD (CN)
International Classes:
B61F19/04
Foreign References:
| CN114572267A | 2022-06-03 | |||
| CN104627197A | 2015-05-20 | |||
| CN112172721A | 2021-01-05 | |||
| CN104890604A | 2015-09-09 | |||
| CN109094494A | 2018-12-28 | |||
| US20210094592A1 | 2021-04-01 | |||
| CN207045351U | 2018-02-27 | |||
| CN109720290A | 2019-05-07 |
Attorney, Agent or Firm:
CHANGSHA ZONEKEY PATENT LAW FIRM (CN)
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