Title:
FRAME-SUSPENDED PERMANENT MAGNET DIRECT-DRIVE BOGIE
Document Type and Number:
WIPO Patent Application WO/2023/071612
Kind Code:
A1
Abstract:
The present invention relates to the field of rail vehicles, and in particular to a frame suspended permanent magnet direct-drive bogie, comprising a frame, wheel sets, direct-drive motors, hollow shaft couplings, a single stage rubber stack, air springs, brake cylinders, and a traction pull rod. The frame is of a structure of the Chinese character "日"; the direct-drive motor and the frame are in elastic rubber joint connection; the direct-drive motors drive, by means of the hollow shaft couplings, the wheel sets to rotate; the direct-drive motors use suspension structure design, thereby facilitating small wheelbase design of the bogie; in addition, the motor and the frame are connected using three elastic joints, and the weight of the motors is directly borne by the frame; the brake cylinders use four-joint connection design. The bogie according to the present invention is simple and compact in structure, vehicle operating energy consumption can be reduced by means of the small wheelbase design, the weight of a traction driving device is changed from unsprung weight to sprung weight, the acting force between wheel rails is improved, the brake cylinders are installed on the outer side of the frame, and by means of four-joint connection, the acting positions of a brake shoe and wheel treads meet the braking requirement and eccentric wear will not be caused.
Inventors:
XIAO YAO (CN)
MA XIAOGUANG (CN)
HU DINGXIANG (CN)
JIA XIAOPING (CN)
YANG CHEN (CN)
JIN XIN (CN)
MA XIAOGUANG (CN)
HU DINGXIANG (CN)
JIA XIAOPING (CN)
YANG CHEN (CN)
JIN XIN (CN)
Application Number:
PCT/CN2022/119839
Publication Date:
May 04, 2023
Filing Date:
September 20, 2022
Export Citation:
Assignee:
CRRC NANJING PUZHEN CO LTD (CN)
International Classes:
B61F5/52; B61C9/50
Domestic Patent References:
| WO2020062628A1 | 2020-04-02 | |||
| WO2006051046A1 | 2006-05-18 |
Foreign References:
| CN114572266A | 2022-06-03 | |||
| CN108791325A | 2018-11-13 | |||
| CN105882665A | 2016-08-24 | |||
| CN110962873A | 2020-04-07 | |||
| CN106740897A | 2017-05-31 | |||
| RU2423259C1 | 2011-07-10 |
Attorney, Agent or Firm:
NANJING TONGZE PATENT AGENCY FIRM (LIMITED LIABILITY PARTNER SHIP) (CN)
Download PDF: