Rapid freight car radial bogie

Abstract

The invention discloses a rapid freight car radial bogie. The rapid freight car radial bogie comprises an axle assembly, a frame, a swing bolster, a braking device, central suspension devices, a radial device, a side bearing device arranged on the swing bolster and an axle box suspension device, wherein the frame is installed on the axle assembly through the axle box suspension device, the two ends of the swing bolster are fixedly installed in the middle of the frame respectively through the central suspension devices, the frame is composed of two side beams and parallel cross beams connected with the side beams, and bearing platforms where the central suspension devices are installed are arranged outside the middle portions of the side beams. The rapid freight car radial bogie structure obviously reduces wheel-rail wear and wheel-rail noise, reduces wheel-rail acting force, reduces vehicle transverse vibration acceleration and improves vehicle operation lateral stability, straight line stability and curve line negotiating capacity. The unsprung mass of the bogie is reduced, the speed of the bogie is high, vehicle braking performance is improved, wheel-rail wear and wheel-rail noise are small, vehicle operation stability is good, and stability and safety are high.

Description

technical field [0001] A radial bogie for fast freight cars relates to a railway freight transport device, in particular to a bogie for fast freight cars, and belongs to the technical field of railway vehicles and machinery. Background technique [0002] At present, the speed of the main bogies of railway freight cars in my country generally reaches 120km / h, but the higher speed is limited by the structure of the bogies. Large, severe wheel and rail wear, serious wear of the suspension device, the dynamic performance of the bogie deteriorates as the speed increases, the vehicle vibration acceleration increases, and the stability decreases. Simultaneously vehicle stability and safety also can't meet the requirement. With the increase of railway high value-added cargo transportation, especially the development of express container transportation, it is urgent to develop a fast freight car bogie with high speed, low wheel and rail wear and noise, and excellent dynamic performan...

AI Technical Summary

Problems solved by technology

[0002] At present, the speed of the main bogies of railway freight cars in my country generally reaches 120km / h, but the higher speed is limited by the structure of the bogies. Large, severe wheel and rail wear, serious wear of the suspension device, the dynamic performance of the bogie deteriorates as the speed increases, the vehicle vibration acceleration increases, and the stability decreases

At the same time, the stability and safety of the vehicle cannot meet the requirements

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