The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 31, 2017
Filed:
Apr. 04, 2013
Crrc Meishan Co., Ltd., Meishan, Sichuan, CN;
Tao Deng, Sichuan, CN;
Shuping Pan, Sichuan, CN;
Aimin Wang, Suchuan, CN;
Pu Wang, Suchuan, CN;
Yungui Wang, Sichuan, CN;
Hengli Li, Sichuan, CN;
Xianfeng Zhang, Sichuan, CN;
Hanjiang Luo, Sichuan, CN;
Ji Zhu, Sichuan, CN;
Zongquan Zhou, Sichuan, CN;
Chengyong Liu, Sichuan, CN;
CRRC MEISHAN CO., LTD., Meishan, Sichuan, CN;
Abstract
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.