US 11,052,927 B2
Railroad hopper car
Liangcai Lin, Wuhan (CN); Biaowen Xiang, Wuhan (CN); Chuqiang Tang, Wuhan (CN); Hong Cui, Wuhan (CN); Yueming Hu, Wuhan (CN); Song Wang, Wuhan (CN); Xuebin Zhu, Wuhan (CN); Rui Yan, Wuhan (CN); Chuanping Zheng, Wuhan (CN); and Qi Wei, Wuhan (CN)
Assigned to CRRC Yangtze Co., Ltd., Wuhan (CN)
Appl. No. 16/338,365
Filed by CRRC YANGTZE CO., LTD., Wuhan (CN)
PCT Filed Jul. 21, 2017, PCT No. PCT/CN2017/093766
§ 371(c)(1), (2) Date Mar. 29, 2019,
PCT Pub. No. WO2018/068553, PCT Pub. Date Apr. 19, 2018.
Claims priority of application No. 201610900465.1 (CN), filed on Oct. 13, 2016; and application No. 201621126920.9 (CN), filed on Oct. 13, 2016.
Prior Publication US 2020/0023867 A1, Jan. 23, 2020
Int. Cl. B61D 7/02 (2006.01); B61D 7/18 (2006.01); B61D 39/00 (2006.01); B61D 7/28 (2006.01)
CPC B61D 7/02 (2013.01) [B61D 7/18 (2013.01); B61D 39/001 (2013.01); B61D 7/28 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A railway hopper car comprising:
a car body (6) and a top cover mounted at a top opening of the car body (6), and a bogie (24), a braking device (21) and a coupler buffer device (22) each mounted under a chassis of the car body (6), as well as a bottom door and a bottom door opening and closing mechanism (23) mounted at a discharge port at the bottom of the chassis, wherein the bottom door includes a left bottom door (25) and a right bottom door (28) rotatably mounted at the bottom of the discharge port of the car body (6), and the left bottom door (25) and the right bottom door (28) are symmetrically arranged about a longitudinal central line of the car body (6) in a length direction thereof, and
wherein the railway hopper car further comprises a longitudinal saddle (31) disposed in the center of the car body (6) in the length direction thereof and arranged along the longitudinal direction of the car body (6), wherein the longitudinal saddle (31) includes two side plates (31.1) and a saddle top (31.2) connected tops of the two side plates (31.1), as well as lower side beams (31.3) respectively disposed below inner side surfaces of the side plates (31.1), and two ends of each of the two side plates (31.1) are respectively fixed to end plates of the discharge port of the car body (6) through end connecting plates (27) at both ends of the discharge port; the bottom door opening and closing mechanism (23) drives the left bottom door (25) and the right bottom door (28) to rotate, so that an inner edge (37) of the left bottom door (25) and an inner edge (38) of the right bottom door (28) are respectively overlapped with or separated from the lower side beams (31.3) at two sides of the longitudinal saddle (31); and
the top cover is a double-layer top cover (20), and the double-layer top cover (20) comprises a fixed top cover (1), a movable top cover (2) and a top cover opening and closing mechanism (3), and the fixed top cover (1) is detachably connected to the top opening of the car body (6), and the movable top cover (2) is movably connected to the top opening of the car body (6) through the top cover opening and closing mechanism (3); the top cover opening and closing mechanism (3) includes a rocker (8) with one end fixedly connected to an end of the movable top cover (2) and a rocker support (9) connected to the other end of the rocker (8) through a pin shaft (7), the rocker support (9) being fixed to an end wall (4) of the car body (6).