Qiqihar Railway Rolling Stock Co., Ltd.

Crrc Qiqihar Rolling Stock Co., Ltd.

Dalian Qiche Railway Rolling Stock Co., Ltd.

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

Pingwei Yin

Haibin Hu

Zhenming Liu

Shifeng Xu

Wendong Shao

Shuming Xing

Lidong Li

Shihui Duan

Chunlin Wang

Hai Yao

Yuebin Yu

Derong Zhang

Yanchen Zhang

Yufeng Cao

Weichun Ren

Chaoyu Li

Hao Liang

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 side frame for a bogie. Two longitudinal sides of the side frame are respectively provided with a supporting seat for connecting an end portion of a connecting rod, and the supporting seat is integrally formed with the side frame by casting. The supporting seat includes a supporting plate, a middle rib and a first side rib. The supporting plate is provided with a through hole. The connecting rod and the supporting seat are thread-connected via a conical pole which is fixedly provided in the through hole. The side frame reduces the welding processes, ensures the installation precision of the supporting seat, and enhances the strength of the supporting seat.

Bogie and side frame 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

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

The present invention discloses a freight car bogie and a freight car. The freight car bogie comprises two wheel sets, two side frames arranged at outer side of said wheel sets, and a bolster fixedly connected to center position of each of said two side frames, respectively. The freight car bogie further comprises a K-shaped supporting device, wherein said K-shaped supporting device passes through preset holes on two sides of an abdominal region of said bolster; a first upper end and a second upper end, as well as a first lower end and a second lower end of said K-shaped supporting device are elastically connected with said two side frames respectively; and said first upper end and second upper end, and said first lower end and second lower end are respectively symmetrical with respect to a center line of said bolster. The K-shaped supporting device of the present application may not pass through the middle part of the bolster so that a reinforcing rib for bearing vertical load can be disposed on the middle part of the bolster, thereby increasing the anti-lozenge-distortion rigidity of the bogie as well as improving the strength of the bolster for bearing the vertical load.

Freight car bogie and freight car

Growing community of inventors

Heilongjiang, China

Pingwei Yin