Sub-frame radial bogie

US9802626B2 · kind B2 · utility

Assignee

• CRRC MEISHAN CO., LTD. · CN

Inventors

• Tao Deng · New York, US
• Shuping Pan · Sichuan, CN
• Aimin Wang · Shenyang, CN
• Pu Wang · Cambridge, US
• Yungui Wang · Nanjing, CN
• Hengli Li · Sichuan, CN
• Xianfeng Zhang · Longbeilingcun, CN
• Hanjiang Luo · Sichuan, CN
• Ji Zhu · Sichuan, CN
• Zongquan Zhou · Meekrap-oord, CN
• Chengyong Liu · Jiaocheng District, CN

Key dates

• Filing date: Apr 4, 2013
• Grant date: Oct 31, 2017
• Expiry date: Apr 12, 2034

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B61F5/38
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A sub-frame radial bogie comprises wheelsets, a side frame, a swing bolster, a wheelset radial device and a brake gear. Bearing adapters (41) forming the wheelset radial device are fixedly connected with the sub-frame (42) via pulling rivets (11), and each group of the bearing adapters (41) is bilaterally symmetrical in structure with a symmetry plane (A). The sub-frame (42) comprises an arm (51) and an end (52); a sub-frame connection hole (61) is arranged on the end (52); transverse positioning bosses (73) are arranged on the bearing adapters (41); and an arc groove (75) and symmetrical sub-frame connection holes (71) are arranged on a connection base (72). 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.