US 11,766,907 B2
Road-rail dual-purpose vehicle
Haiping Hu, Wuhan (CN); Hui Luo, Wuhan (CN); Danyan Liu, Wuhan (CN); Ruijin Jiang, Wuhan (CN); Fengwei Liu, Wuhan (CN); Ziming Li, Wuhan (CN); Xianhong Peng, Wuhan (CN); Xiong Yao, Wuhan (CN); Zhiying Xiang, Wuhan (CN); Xiannian Wu, Wuhan (CN); and Chunyu Huang, Wuhan (CN)
Assigned to CRRC YANGTZE CO., LTD., Wuhan (CN)
Appl. No. 16/975,335
Filed by CRRC YANGTZE CO., LTD., Wuhan (CN)
PCT Filed Apr. 12, 2019, PCT No. PCT/CN2019/082436
§ 371(c)(1), (2) Date Aug. 24, 2020,
PCT Pub. No. WO2020/019763, PCT Pub. Date Jan. 30, 2020.
Claims priority of application No. 201810846327.9 (CN), filed on Jul. 27, 2018; and application No. 201821211150.7 (CN), filed on Jul. 27, 2018.
Prior Publication US 2020/0406696 A1, Dec. 31, 2020
Int. Cl. B60F 1/04 (2006.01); B60F 1/00 (2006.01); B60F 1/02 (2006.01); B61D 3/16 (2006.01)
CPC B60F 1/046 (2013.01) [B60F 1/00 (2013.01); B60F 1/02 (2013.01); B60F 1/04 (2013.01); B60F 1/005 (2013.01); B60F 1/043 (2013.01); B61D 3/16 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A road-rail dual-purpose vehicle, comprising a vehicle frame (1), a suspension (2) and a single-axle bogie (3), wherein the vehicle frame (1) comprises two longitudinal beams (1a) arranged in parallel;
the two longitudinal beams (1a) are connected by a longitudinal beam connection plate (1b), and a lifting airbag mounting seat (1c) is provided between the two longitudinal beams (1a);
a load-bearing airbag insertion hole is formed on a lower cover plate (1a1) of the longitudinal beam (1a) at a position corresponding to the lifting airbag mounting seat (1c);
a load-bearing airbag mounting seat (1d) is installed in the load-bearing airbag insertion hole, and a bearing bolster (1e) is installed on an outer side of the longitudinal beam (1a);
the suspension (2) comprises an axle assembly (2a); a lifting airbag (2b) is installed in the middle portion of the axle assembly (2a) at a front end thereof, and a primary load-bearing airbag (2c) is installed on either side of the axle assembly (2a) at a rear end thereof;
a secondary load-bearing airbag (2e) is installed on a top surface of each of two primary load-bearing airbags (2c) through a supporting seat (2d);
a top surface of the lifting airbag (2b) is installed on the lifting airbag mounting seat (1c), and a top surface of the secondary load-bearing airbag (2e) is installed in the load-bearing airbag mounting seat (1d);
the single-axle bogie (3) comprises a framework (3a), and an axle box (3b) is installed on a bottom surface of the framework (3a) at each end thereof;
a wheel-axle assembly (3c) is installed between the two axle boxes (3b), and a primary damping spring assembly (3d) is provided between the axle box (3b) and the framework (3a);
a brake assembly (3e) is installed at each of two ends of the bottom surface of the framework (3a) at a position corresponding to a wheel of the wheel-axle assembly (3c);
a vehicle frame connection assembly (3f) is provided at each of two ends of a top surface of the framework (3a), and the framework (3a) is installed on a bottom surface of the bearing bolster (1e) through the vehicle frame connection assembly (3f),
wherein a coupler seat (1j) is provided between front ends of the two longitudinal beams (1a), and a tight-lock coupler (4) is installed inside the coupler seat (1j) through a coupler pin.