US 12,168,465 B2
Gearbox for rail vehicle, bogie for rail vehicle and rail vehicle
Shuliang Song, Qingdao (CN); Zhen Chang, Qingdao (CN); Yuejun Zhang, Qingdao (CN); Jinming Zhou, Qingdao (CN); and Tianyi Li, Qingdao (CN)
Assigned to CRRC QINGDAO SIFANG CO., LTD., Qingdao (CN)
Appl. No. 17/610,679
Filed by CRRC QINGDAO SIFANG CO., LTD., Qingdao (CN)
PCT Filed May 18, 2020, PCT No. PCT/CN2020/090833
§ 371(c)(1), (2) Date Nov. 11, 2021,
PCT Pub. No. WO2020/238679, PCT Pub. Date Dec. 3, 2020.
Claims priority of application No. 201910463546.3 (CN), filed on May 30, 2019.
Prior Publication US 2022/0212697 A1, Jul. 7, 2022
Int. Cl. B61C 9/50 (2006.01); B61C 9/38 (2006.01); B61F 3/04 (2006.01); B61F 5/52 (2006.01)
CPC B61C 9/50 (2013.01) [B61C 9/38 (2013.01); B61F 3/04 (2013.01); B61F 5/52 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A gearbox for rail vehicle, comprising a primary gearbox configured to connect with a traction motor, and further comprising a secondary gearbox arranged on both sides of the primary gearbox along a longitudinal direction of the rail vehicle, wherein a framework bearing beam is formed by connecting the primary gearbox and the secondary gearbox, the primary gearbox is configured to transmit power from the traction motor to the secondary gearbox, and the secondary gearbox is configured to transmit power from the primary gearbox to wheelsets of the rail vehicle.