公开(公告)号：EP3689701A1

公开(公告)日：2020-08-05

申请号：EP17926767.9

申请日：2017-12-25

申请人： CRRC Zhuzhou Locomotive Co., Ltd

发明人： ZHANG, Chong ,  LI, Guanjun ,  ZOU, Wenhui ,  YAN, Zhijun ,  ZHU, He ,  WEI, Hongtu ,  YI, Xingli ,  CHEN, Qingming ,  CHEN, Guosheng ,  ZHANG, Youkong ,  HE, Ye ,  GAO, Bin ,  XIE, Jiahui ,  CHEN, Yuxiang ,  XIAO, Zehua ,  GUO, Qingsheng

IPC分类号： B61C9/50 ,  B61F5/28

摘要： Provided is a bogie, including a framework (1), a gear box (2), a traction motor (3), a wheel pair (4), an axle (5), a six-link hollow shaft (6, 7), and a suspension cross beam (8), wherein the suspension cross beam (8) includes a beam body (81), a through groove (82) transversely provided on the beam body (81), and a bearing seat (83),which is arranged so as to transversely overhang at a groove opening at one end of the through groove (82) and which is fixedly connected to the beam body (81); one end, with the through groove (82), of the beam body (81) is fixedly connected to the traction motor (3) in a longitudinal direction, and a closed cavity formed after connection is in sleeve connection with an outer surface of the hollow shaft (6); the other end of the traction motor (3) is suspended on a middle cross beam (11) of the framework (1); one end, without the through groove (82), of the beam body (81) is hooked with a framework end beam (12); and a driven gear (21) of the gearbox (2) is in sleeve connection with the bearing seat (83) via a bearing (22). By means of elastic frame suspension of a driving device, the bogie solves the problem of the transverse instability of a heavy-duty freight electric locomotive during high-speed traveling. The gear box (2) uses a non-load structure so as to solve the problems of the gear box (2) having a complicated structure and being subject to a relatively heavy load of the gear box (2).

公开(公告)号：EP4169796A1

公开(公告)日：2023-04-26

申请号：EP21859907.4

申请日：2021-07-08

申请人： CRRC Zhuzhou Locomotive Co., Ltd.

发明人： DENG, Xiaoxing ,  SHEN, Longjiang ,  LI, Guanjun ,  SHEN, Changhong ,  XIE, Jiahui ,  TAN, Tong ,  PENG, Bo ,  LIAO, Zhiwei ,  ZHU, Xiangyang ,  ZENG, Yanmei ,  LIU, Jinju ,  LI, Yanhui ,  CAI, Chao ,  QIN, Lang

IPC分类号： B61C3/00 ,  B61C9/50

摘要： A locomotive bogie driving device, comprising an axle (102), a driven gear (106) mounted on the axle (102) in an interference manner, identical traction motors (104) symmetrically mounted on two sides of the axle (102), and driving gears (107) mounted on rotary shafts of the traction motors (104) in an interference manner respectively. The driving gears (107) on the traction motors (104) on the two sides of the axle (102) engage with the driven gear (106) simultaneously to form a transmission gear pair. The locomotive bogie driving device can significantly increase and even double driving torque and driving power. Moreover, individual traction motors have smaller volume and weight for designated single-axle traction power and traction, thereby providing ample space for a bogie traction rod to cross under the traction motors. Meanwhile, the abrasion matching between the driving gears and the driven gear is improved.