Title:
CONNECTING STRUCTURE FOR RAIL VEHICLE BOLSTER AND FLOOR PLATE
Document Type and Number:
WIPO Patent Application WO/2022/062108
Kind Code:
A1
Abstract:
Disclosed is a connecting structure for a rail vehicle bolster (1) and a floor plate. The connecting structure comprises a bolster (1), a corrugated floor plate (3), and a floor plate connecting beam (2). The floor plate connecting beam (2) has a hat-shaped structure, and has an inverted U-shaped portion and a first flange (21) and a second flange (22) respectively located at the front and the rear of the inverted U-shaped portion. The first flange (21) is disposed on an upper cover plate of the bolster (1) and is fixed thereto. A front end of the corrugated floor plate (3) is disposed on an upper surface of the second flange (22) and is fixed thereto. The bolster (1) is connected to the corrugated floor plate (3) by means of the hat-like floor plate connecting beam (2). The hat-like shape visible in cross-section is easily deformable, and so only a small part of a longitudinal force is transmitted to the corrugated floor plate (3) via the connecting beam, and the longitudinal force is mainly transmitted backwards via two side beams. As a result, it is not necessary to provide a longitudinal beam behind the bolster, and a thin corrugated floor plate (3) having a small cross section can be used. The invention simplifies the structure of an underframe, reduces stress on the corrugated floor plate (3), reduces the weight of the underframe, extends the service life of the vehicle body, reduces processing difficulty, shortens the production cycle, and reduces manufacturing costs.
Inventors:
DU YANPIN (CN)
ZHU LIANG (CN)
GAO JIANFEI (CN)
YANG ZHIPENG (CN)
WANG XIAOYU (CN)
NIU YONGGANG (CN)
ZHU LIANG (CN)
GAO JIANFEI (CN)
YANG ZHIPENG (CN)
WANG XIAOYU (CN)
NIU YONGGANG (CN)
Application Number:
PCT/CN2020/128075
Publication Date:
March 31, 2022
Filing Date:
November 11, 2020
Export Citation:
Assignee:
CRRC NANJING PUZHEN CO LTD (CN)
International Classes:
B61F1/14
Foreign References:
| CN204172921U | 2015-02-25 | |||
| CN201863858U | 2011-06-15 | |||
| CN201580395U | 2010-09-15 | |||
| CN111959547A | 2020-11-20 | |||
| CN211139337U | 2020-07-31 | |||
| GB2514516A | 2014-11-26 |
Attorney, Agent or Firm:
NANJING TONGZE PATENT AGENCY FIRM (LIMITED LIABILITY PARTNER SHIP) (CN)
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