A high-speed flexible bogie for railway freight cars

Abstract

The invention discloses a high-speed flexible bogie of a wagon, and belongs to the field of wagons. The high-speed flexible bogie comprises a swing bolster provided with a center disk abrasion disk, a left side frame, a right side frame, a front wheel pair, a rear wheel pair, damping devices installed on the lower portions of the two ends of the swing bolster and shaft boxes installed at the two ends of a wheel pair shaft. The damping devices are structurally characterized in that a side middle shaft is inserted into a hole formed by the side frames, the swing bolster, a support and an elastic damping shock absorber and friction blocks and rubber bars are installed on the left side faces and the right side faces of the two ends of the swing bolster. According to the structure of the shaft boxes, a left shock eliminator and a left compression spring are installed on one side of each shaft box, a right shock eliminator and a right compression spring are installed on the other side of each shaft box, and pressing plate spring pieces are installed on the left sides and the right sides of the upper faces of the shaft boxes. The high-speed flexible bogie of the wagon has good shockproof and stable performance and enables the wagon to run stably during speed increasing.

Description

technical field [0001] The invention belongs to the field of railway freight cars, in particular to a high-speed flexible bogie for railway freight cars. Background technique [0002] At present, the bogies used on railway freight cars at home and abroad include bolsters equipped with center disc wear discs, left and right side frames, front and rear wheelsets, shock absorbers and bearing saddles. On the bogie assembly platform, first assemble the bolster assembly and the left and right side frames, then assemble the shock absorber, then assemble the bearing saddle and rubber pads with the side frames, then install the wheelsets on the side frames, and finally assemble the left and right The cross bar, the wear plate of the center disc, the front and rear elastic side bearings and four brake devices and other related accessories. Due to the development of high-speed railways in recent years, the elevation difference between the inner and outer rails at the curve is relative...

AI Technical Summary

Problems solved by technology

Since the main unsprung mass of the bogie includes the wheel set and the side frame, its total mass is large, resulting in a large impact on the wheel set bearings, making it impossible for the truck to run at a high speed above 100km / h, which seriously restricts the speed-up requirements of the truck

Images