Title:
VARIABLE-RIGIDITY POSITIONING DEVICE FOR BOGIE AXLEBOX OF RAILWAY CAR
Document Type and Number:
WIPO Patent Application WO/2015/101095
Kind Code:
A1
Abstract:
A variable-rigidity positioning device for a bogie axlebox of a railway car, comprising a vertical elastic member (20) disposed between the top face of an axlebox bearing saddle (10) and the bottom face of a side-frame guide block (40), and a horizontal elastic member (30) disposed between the axlebox bearing saddle (10) and the front side and back side of the side-frame guide block (40). The horizontal elastic member (30) is provided with at least one low-rigidity elastic element (31) and one high-rigidity elastic element (32), said low-rigidity elastic element (31) being disposed in an elastic-member precompression device (33) and, when under the effect of a precompression load F1, being arranged in serial connection with the high-rigidity elastic element (32). When the amount of horizontal warp displacement of the horizontal elastic member (30) is small, said member has a large degree of horizontal compression rigidity, thereby ensuring that when the railway car travels along a straight line, the critical speed during snaking is high, thus satisfying requirements for increased car speed. When the amount of horizontal warp displacement reaches a fixed numerical value, the degree of horizontal compression rigidity of the horizontal elastic member begins to decrease, thereby ensuring that when the railway car negotiates a curve, the transverse force between the wheels and the rails is not too great, thus safeguarding the safe travel of the car over curving tracks.
Inventors:
YAN ZHIXIONG (CN)
JIANG RUIJIN (CN)
ZHANG LIANGWEI (CN)
CUI HONG (CN)
LIU FENGWEI (CN)
LIU WENLIANG (CN)
FU TIEJUN (CN)
DAN ZHAOJUN (CN)
WANG PINGPING (CN)
JIANG RUIJIN (CN)
ZHANG LIANGWEI (CN)
CUI HONG (CN)
LIU FENGWEI (CN)
LIU WENLIANG (CN)
FU TIEJUN (CN)
DAN ZHAOJUN (CN)
WANG PINGPING (CN)
Application Number:
PCT/CN2014/090008
Publication Date:
July 09, 2015
Filing Date:
October 31, 2014
Export Citation:
Assignee:
CSR YANGTZE CO LTD (CN)
International Classes:
B61F5/30
Foreign References:
| CN203793353U | 2014-08-27 | |||
| CN103693063A | 2014-04-02 | |||
| CN101011971A | 2007-08-08 | |||
| CN102001345A | 2011-04-06 | |||
| CN103112466A | 2013-05-22 | |||
| UA82338C2 | 2008-04-10 | |||
| FR2279578A1 | 1976-02-20 |
Attorney, Agent or Firm:
WUHAN KAIYUAN INTELLECTUAL PROPERTY AGENT LTD. (CN)
武汉开元知识产权代理有限公司 (CN)
武汉开元知识产权代理有限公司 (CN)
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