Qiqihar Railway Rolling Stock Co., Ltd.

Crrc Qiqihar Rolling Stock Co., Ltd.

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

Lidong Li

Haibin Hu

Shifeng Xu

Pingwei Yin

Wendong Shao

Shuming Xing

Derong Zhang

Yuebin Yu

Zhenming Liu

Xinqiang Liu

Shihui Duan

Kewei Lv

Yanchen Zhang

Yufeng Cao

Weichun Ren

Chaoyu Li

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

A central suspension device, a wagon bogie and an express railway wagon, wherein the central suspension device is arranged between a frame and a bolster of the wagon bogie and comprises a rubber-metal pad spring group composed of at least two rubber-metal pad springs, a bottom end of each rubber-metal pad spring is connected with the frame, a top end of at least one rubber-metal pad spring of the rubber-metal pad spring group is connected with the bolster, and a gap exists between the top end of at least one rubber-metal pad spring and the bolster. The central suspension device has multiple stages of rigidities in the transverse and vertical directions, so that the different rigidities can be mutually shifted conveniently on the empty vehicle condition and the heavy-load condition of the vehicle, therefore, the central suspension device is applicable to express railway vehicles for safe and stable running.

Central suspension device, wagon bogie and express railway wagon

The present invention provides an journal box rubber pad and a bogie, wherein the journal box rubber pad comprises a glue-injection hole and a conductive mechanism: the glue-injection hole comprises a cavity formed in a rubber layer, a first hole formed on an upper wear liner and a second hole formed on a lower wear liner. The cavity, the first hole and the second hole are communicated with each other; the conductive mechanism is placed internally in the glue-injection hole; the two ends of the conductive mechanism pass through the first hole and the second hole respectively and be in contact with two conducted apparatuses. The journal box rubber pad and the bogie of the present invention have the advantages that: the journal box rubber boxes not only can overcome the disadvantages that the upper and the lower wear liners are easy to be abraded and have poor contact with a bogie side frame and an adapter because of the requirements of high manufacturing accuracy but also can realize conductive function.

Journal box rubber pad and bogie

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Qiqihar, China

Lidong Li