US 11,964,680 B2
Transaxle of rail vehicle, rail vehicle, and rail transportation system
Kang Zhou, Shenzhen (CN); Guang Liu, Shenzhen (CN); Jingjing Wang, Shenzhen (CN); Jia Wei, Shenzhen (CN); and Huiyue Liu, Shenzhen (CN)
Assigned to BYD COMPANY LIMITED, Shenzhen (CN)
Appl. No. 16/967,666
Filed by BYD COMPANY LIMITED, Guangdong (CN)
PCT Filed Jan. 28, 2019, PCT No. PCT/CN2019/073416
§ 371(c)(1), (2) Date Aug. 5, 2020,
PCT Pub. No. WO2019/154157, PCT Pub. Date Aug. 15, 2019.
Claims priority of application No. 201810119258.1 (CN), filed on Feb. 6, 2018.
Prior Publication US 2021/0221412 A1, Jul. 22, 2021
Int. Cl. B61F 15/20 (2006.01); B60B 35/00 (2006.01); B61F 3/04 (2006.01); B61F 5/02 (2006.01); B61F 5/22 (2006.01); B61F 5/26 (2006.01); B61F 5/38 (2006.01); B61F 5/52 (2006.01)
CPC B61F 15/20 (2013.01) [B60B 35/003 (2013.01); B61F 3/04 (2013.01); B61F 5/02 (2013.01); B61F 5/22 (2013.01); B61F 5/26 (2013.01); B61F 5/38 (2013.01); B61F 5/52 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A transaxle of a rail vehicle, comprising:
a power assembly;
an axle body, connected to a vehicle frame of the rail vehicle;
a running wheel, rotatable in an axial direction of the running wheel and transversely swingably mounted on the axle body, wherein the running wheel is supported on a rail beam along which the rail vehicle travels, the power assembly is transmission-connected to the running wheel to drive the running wheel to rotate;
a guiding frame, mounted on the axle body and rotatable relative to the axle body in a horizontal direction;
a horizontal wheel, disposed on the guiding frame; and
a connecting rod component, comprising a first transverse pull rod and a second transverse pull rod, wherein the first transverse pull rod is pivotally mounted on the guiding frame, the second transverse pull rod is respectively transmission-connected to the first transverse pull rod and the running wheel, the first and second transverse pull rods being longitudinally spaced apart and extending in a transverse direction between left and right sides of the transaxle, wherein
when the rail vehicle turns left, the horizontal wheel cooperates with the rail beam to drive the guiding frame to swing and to drive the first transverse pull rod to move together, and the second transverse pull rod is driven by the first transverse pull rod to drive the running wheel to swing to the left, and
when the rail vehicle turns right, the horizontal wheel cooperates with the rail beam to drive the guiding frame to swing and to drive the first transverse pull rod to move together, and the second transverse pull rod is driven by the first transverse pull rod to drive the running wheel to swing to the right.