Qiqihar Railway Rolling Stock Co., Ltd.

Crrc Qiqihar Rolling Stock Co., Ltd.

Crrc Qiqihar Rolling Stock Co., Ltd. Dalian Research & Development Center

Shihui Duan

Pingwei Yin

Zhenming Liu

Haibin Hu

Shifeng Xu

Wendong Shao

Lidong Li

Derong Zhang

Xinqiang Liu

Chunlin Wang

Hai Yao

Yanchen Zhang

Yufeng Cao

Zengchuang Zhao

Peng Gao

Wei Du

An axle box suspension positioning device for a railway vehicle is provided, which includes a guide column assembly. The guide column assembly includes a fixed end connected to a frame of the railway vehicle, and a free end which is extendable and retractable from an opening of the axle box. An elastic positioning component is provided in the opening, and the elastic positioning component limits a movement of the free end along a running direction of the vehicle with respect to the frame. The arrangement of the elastic positioning component enables the axle box suspension positioning device to have a large positioning rigidity. A bogie having the axle box suspension positioning device is also provided.

Bogie and axle box suspension positioning device thereof

The invention provides a bogie which comprises a bolster, two side frames and four constant contact dampers, two sides of two ends of the bolster are respectively provided with a wedge pocket; the four constant contact dampers are respectively arranged in four wedge pockets, and each of the four constant contact dampers comprises a wedge and a damping spring; the damping spring is arranged in an inner cavity of the wedge; one end of the damping spring bears against a top inner surface of the inner cavity of the wedge, and the other end of the damping spring bears against a bottom plate of the wedge pocket, wherein the bogie further comprises four through holes and four ejectors which respectively correspond to the four constant contact dampers; the through holes are arranged on the bottom plate, and the position of each of the four through holes on the bottom plate corresponds to the position where the damping spring bears against the bottom plate and a load spring of the bogie; and one end of the ejector penetrates into the damping spring, and the other end of the ejector bears against the load spring through the through hole. The bogie of the present invention solves the technical problem that the deformation of the damping springs keeps constant whether a car is empty or loaded in the prior art, and thus improves the damping effect of the bogie.

Bogie

Growing community of inventors

Qiqihar, China

Shihui Duan