First suspension of high speed car bogie

摘要

The present invention relates to a primary suspension device used in a bogie of an accelerated car, which comprises an inner spring 6 and an outer spring 1 having different heights, respectively, and a friction damping portion is provided on the inner spring portion 6 side . The frictional damping portion includes a spring cup 2 installed below the frame and a suspending ring 4 provided between the spring cup 2 and the spring box so that the spring cup 2 is connected to the spring box, And a push rod (3) and a friction plate (7) connected to the side of the cup (2). Further, the primary suspending device is provided between the jugular box installed on the friction plate 7 side and the spring box in a horizontal direction and in a predetermined direction in the vehicle traveling direction.