- 专利标题: RAIL VEHICLE AND BOGIE
-
申请号: US17781042申请日: 2021-04-07
-
公开(公告)号: US20230132924A1公开(公告)日: 2023-05-04
- 发明人: Yonghua FENG , Mingxing LI , Hao YIN , Xin YANG , Junfeng ZHOU
- 申请人: CRRC QINGDAO SIFANG CO., LTD.
- 申请人地址: CN Qingdao, Shandong
- 专利权人: CRRC QINGDAO SIFANG CO., LTD.
- 当前专利权人: CRRC QINGDAO SIFANG CO., LTD.
- 当前专利权人地址: CN Qingdao, Shandong
- 优先权: CN202011332469.7 20201124,CN202022741207.8 20201124
- 国际申请: PCT/CN2021/085786 WO 20210407
- 主分类号: B61F5/30
- IPC分类号: B61F5/30 ; B61C9/00 ; B61F3/04 ; B61F5/52
摘要:
A bogie of a rail vehicle includes a frame, which includes two box-shaped longitudinal beam main bodies and a transverse beam main body; a wheelset, which includes an axle box, an axle and wheels mounted at two ends of the axle; a drive system, which at least includes a gearbox and a drive motor. Practice has proved that the two axle boxes arranged on the inner sides of the two longitudinal beam main bodies can reduce a volume by about 10%, and reduce a weight by about 10% to 15%, which can further reduce air resistance, and realize energy saving and emission reduction. The longitudinal beam main body is located on an inner side of a wheel, a span of the two the longitudinal beam main bodies is reduced, and the torsional rigidity of the frame is reduced, which is beneficial to improving a curve passing capacity.