Trailer bogie for metric rail

Abstract

The invention provides a trailer bogie for metric rails, comprising a framework in a cast structure, two half shaft wheel pairs, two sets of air disc brakes, four air springs and two height control valves, wherein the two half shafts are respectively installed in two end holes of the framework in a pressing manner; each half shaft is equipped with three sets of bearings, the wheel is supported onthe half shafts through the first bearing and the second bearing, a brake disc is supported on the half shafts through a third bearing; the brake disc is fixedly connected with the wheel; the air disc brakes are installed at the end parts of the half shafts through brake supports and are fixedly connected with the half shafts through end shaft connection part; four air springs are installed at the four corners of a truss; the height of each air spring is controlled by a height control valve; the truss is equipped with two draw pull rods and two positioning rods, and the center of the truss isprovided with a horizontal backstop. The trailer bogie provided by the invention has compact and reasonable overall structure and good carve passage capacity, and is more suitable for the requirementof metric rail lines and narrow bodies in urban light rail transportation.

Description

technical field [0001] The invention relates to the technical field of bogies for wheel-rail vehicles, in particular to a trailer bogie for meter-gauge vehicles. Background technique [0002] The low-floor light rail vehicle is a new type of rail vehicle mainly used for urban transportation. The distance between the car body floor and the rail surface is generally not more than 40cm. The core technology of low-floor light rail trains is the independently rotating wheel bogies. [0003] The so-called independently rotating wheels refer to the wheelsets in which the left and right wheels on the same axle can rotate around the axle independently, and there is relative motion between the axles. Since the two wheels of the independent rotating wheel bogie can rotate independently, there is no longitudinal creep force, but no snaking motion, which can effectively guarantee the running stability of the vehicle and can pass through the track with a small radius The curve has the a...

AI Technical Summary

Problems solved by technology

[0008] In short, the existing low-floor independent rotating wheel bogie has complex overall structure, complex structure of the braking system, poor stability of the secondary suspension structure, and large space occupation of the overall structure. Disadvantages such as rail lines and the need for narrow car bodies

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