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|1. (WO2018133880) BOGIE OF EXPRESS RAILWAY WAGON|
|Applicants:||CRRC YANGTZE CO., LTD.
|Title:||BOGIE OF EXPRESS RAILWAY WAGON|
Disclosed is a bogie of an express railway wagon. The bogie comprises a frame (200), four sets of revolving arm type axle box positioning devices (100), two sets of wheel pair components (500), a swing bolster (300) and a set of foundation brake devices (600). The frame further comprises a pair of arc-shaped longitudinal beams (280). A U-shaped cavity (244) in the middle of a frame side beam (240) is provided with a secondary rubber spring mounting platform (245). The swing bolster (300) uses a secondary rubber spring mounting base (360) of a forged piece to replace a welding structure. An axle box elastic suspension system (150) is provided with a primary rubber spring (154). The bogie is applicable to express railway wagons with a running speed of 140 km/h - 160 km/h and an axle load not greater than 18t.