Meishan Crrc Fastening System Co., Ltd

Crrc Meishan Co., Ltd.

Shuping Pan

Yang Liu

Yu Liu

Xiangyun Zhao

Xu He

Tao Deng

Kai Fu

Yunlong Jia

Guangcheng Dai

Aimin Wang

Pu Wang

Chengyong Liu

Yungui Wang

Ji Zhu

Xianfeng Zhang

Hanjiang Luo

Zongquan Zhou

Fangnian Hu

Guanglian Xiong

Hengli Li

The invention discloses a detachable double-locking riveting dismounting method and a pulling rivet. A lantern ring comprises a thin-wall hook section, a thick-wall locking section and a lantern ring head with an annular step from front to back. The rivet comprises a rivet head of an annular groove matched with the hook section, a front polish rod section, a knurling section matched with the locking section, a separating groove, a rear polish rod and a tail annular groove section from front to back. Double riveting is used by inserting the rivet and lantern ring from both sides; after riveting, the locking section and knurling section form radial locking, and the hook section is buckled to form axial locking. Simple detaching tools (e.g. front snap ring and center cylinder) are equipped to dismount rivets rapidly.

Detachable double-locking riveting dismounting method and pulling rivet

A sub-frame radial bogie comprises wheelsets, a side frame, a swing bolster, a wheelset radial device and a brake gear. Bearing adapters () forming the wheelset radial device are fixedly connected with the sub-frame () via pulling rivets (), and each group of the bearing adapters () is bilaterally symmetrical in structure with a symmetry plane (A). The sub-frame () comprises an arm () and an end (); a sub-frame connection hole () is arranged on the end (); transverse positioning bosses () are arranged on the bearing adapters (); and an arc groove () and symmetrical sub-frame connection holes () are arranged on a connection base (). The bearing adapters use the same standard structure, hence, the more precise design and machining can be realized, and the cost is reduced, and meanwhile, the maintenance technique of the sub-frame is improved, and the maintenance cost is reduced.

Sub-frame radial bogie

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Sichuan, China

Shuping Pan