DEVICE FOR COUPLING SIDE FRAME OF FREIGHT CAR BOGIE WITH AXLE BOX Russian patent published in 2023 - IPC B61F5/30 B61F5/26 

FIELD: rail transport.

SUBSTANCE: design of the connection between the axle box and the side frame of the freight car bogie. The connection device of the side frame of the freight car bogie with the axle box contains gasket (2) located on the upper horizontal surface of axle box (1) (or the axle box adapter mounted on the axle box), made of an elastomeric material, on which wear-resistant plate (3) is installed, which serves as a support for a flat needle bearing with rollers (5) mounted in lamellar separator (4) and oriented along the axis of the railway track. Side frame (7) of the bogie rests on a flat needle bearing by means of second wear plate (6). Cone-shaped elastic elements made of elastomeric material are fixed on the front and rear covers of the axle box, installed in contact with the side surfaces of the side frame, and their configuration, with small transverse displacements of the wheel pair relative to the side frame, minimizes the force dynamic interaction of the axle box with the side frame, and at the boundaries of the relative deflection leads to a progressive increase. The device is hermetically sealed with a protective cover. When the car negotiates curved sections of the track, the wheel pair moves (self-aligns) in the axial direction and, upon exiting them, takes its original position, which reduces the wear of the crest and side face of the rail head.

EFFECT: increased operational life of the wheelsets, reduced number of car detachments for repairs, and increased the efficiency of rolling stock operation.

1 cl, 2 dwg