Power bogie adopting traditional wheel sets for 100% low-floor light rail vehicle

Abstract

A power bogie adopting traditional wheel sets for a 100% low-floor light rail vehicle comprises a framework device, wheel set assemblies, first-series springs, second-series springs, second-series vertical oscillating dampers, second-series transverse oscillating dampers, second-series transverse buffers, single traction rods, side rolling preventing torsion rods, a flexible suspension longitudinal driving device, a hydraulic brake unit and a magnetic rail brake and is characterized in that the wheel set assemblies adopt wheel shaft type structures, journal boxes are built in, the wheels are elastic wheels in a diameter Phi of 500-580mm, and two sets of side rolling preventing torsion rods are mounted on the outer side of a cross beam. According to the bogie, the wheel set assemblies adopt the wheel shaft type structures, the journal boxes are built in, and the wheels are the elastic wheels in the diameter of 500-580mm, so that the restoring problem of wheel sets during linear running and the guide problem of the wheels during curvy running are solved; the two sets of side rolling preventing torsion rods are mounted on the outer side of the cross beam, and the side rolling preventing performance of the vehicle is improved. The 100% low-floor requirement of the vehicle body is successfully realized by the bogie, and meanwhile, the structure of the bogie is simplified. All the parts are mature products, and the modular design of the bogie is facilitated.

Description

technical field [0001] The present invention relates to a 100% low-floor light rail vehicle power bogie. Background technique [0002] 100% bogies for low-floor vehicles The typical bogies use an independent wheel structure, the driving devices are arranged on both sides of the frame, and the floor height is lowered by using axle bridges. A set of driving devices drives the front and rear wheels simultaneously. The bogie with independent wheels has the following two problems: the recovery of the wheel set when running in a straight line and the guiding problem of the wheels when running in a curve. These two problems are difficult to solve on the bogie with independent wheels. With the traditional rigid straight-axis wheelset, due to the limited space under the vehicle, in order to ensure the vehicle displacement requirements, the vertical stiffness of the spring is often designed to be very large, resulting in poor comfort and reduced vehicle roll resistance. Contents of...

AI Technical Summary

Problems solved by technology

[0005] The wheel set of the bogie adopts the wheel shaft structure, the axle box is built in, and the wheels adopt elastic wheels with a diameter of Φ500mm-Φ580mm, which solves the problem of the recovery of the wheel set when running in a straight line and the problem of guiding the wheel when running in a curve; two sets are installed on the outside of the beam. Anti-roll torsion bar, which improves the vehicle's anti-roll performance

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