Suspension swing type bogie of axle box for railway vehicle

Abstract

The axle housing suspended swinging bogie includes wheel pair, axle housing, axle housing elastic component, side frame, positioning ball block, rocker seat and rocker beam. The rocker beam can be used to press to the positioning ball blocks which are respectively positioned on lower wing panels of mid-sections of left and right two side frames by means of rocker seats which are respectively positioned under the two ends of rocker beam. The side frame also is hinged and supported on the axle housing elastic component, and the axle housing elastic component is supported on the axle housing. Said invented special structure can mave left and right two side frames like to wing bars to drive rocker beam and make it implement transverse swing. Said invention adopts the sprung suspended special swinging mechanism so as to ensure light unsprung mass of steering frame, small wheeltrack acting force, high critical speed and excellent transverse property of vehicle, so that it can meet requirements for developing high-speed freight carrier.

Description

technical field [0001] The invention relates to an axle box for a railway vehicle, which hangs a swing bogie. It is a large part of the railway vehicle. Background technique [0002] At present, the bogies of railway vehicles (freight wagons) are generally divided into frame bogies suspended from axle boxes and three-piece bogies suspended from the center. The frame type bogie suspended from the axle box has the advantages of light unsprung weight, small wheel-rail action force and high critical speed, but the lateral elasticity of the bogie is only provided by the axle box spring, which is very limited, and the lateral performance is poor when running at high speed. Good; the traditional three-piece bogie with central suspension has small anti-diamond stiffness and poor performance, and can only meet the running requirements of 80km / h. On the basis of the components, the spring support plate and the swing seat are added to form a lateral swing mechanism. The lateral elast...

AI Technical Summary

Problems solved by technology

The frame type bogie suspended from the axle box has the advantages of light unsprung weight, small wheel-rail action force and high critical speed, but the lateral elasticity of the bogie is only provided by the axle box spring, which is very limited, and the lateral performance is poor when running at high speed. Good; the traditional three-piece bogie with central suspension has small anti-diamond stiffness and poor performance, and can only meet the running requirements of 80km / h. On the basis of the components, the spring support plate and the swing seat are added to form a lateral swing mechanism. The lateral elasticity of the bogie is provided by the combination of the central spring and the swing mechanism, which can isolate the lateral disturbance of the bogie from the car body. The lateral performance of the vehicle is greatly improved, but the unsprung mass of the bogie is large, which increases the impact of the wheel and rail during high-speed operation

Images