Radial bogie for low-floor trains

Abstract

The invention provides a radial bogie for low-floor trains, belongs to the technical field of railway vehicles, particularly relates to a radial bogie with independent rotating wheels, and belongs to the low-floor vehicle independent-rotating-wheel bogie technology applied to urban rail transit. Each frame side beam is in a concave structure. Secondary suspension rubber spring mounting blocks are disposed at the ends of each end beam. Two transverse shock absorbers are disposed on transverse shock absorber mounting blocks respectively, and the transverse shock absorber mounting blocks mutually stagger outside the end beams. Each of four vertical shock absorber mounting blocks is provided with a vertical shock absorber. Each short axle is provided with a coupling gear which is connected with a corresponding wheel set transverse coupling mechanism. A brake disc is disposed outside each short axle. A thrust bar at the end of each short axle is connected with one shaft connector through a bolt and a pin. A vehicle floor is fixed through mounting blocks disposed on torsional bars. A bevel gear connected between rotating shafts of a vehicle meshes with bevel gears fixed at the ends of the left and right torsional bars. Each cross beam is provided with a traction device mounting block. The radial bogie for low-floor trains is mainly applied to urban rail transit vehicles.

Description

technical field [0001] The invention belongs to the technical field of railway locomotives, in particular to a radial bogie with independently rotating wheels. Background technique [0002] The use of 100% or 70% low-floor trains is the choice of medium and low-volume ground rail transit in many cities at home and abroad, and is widely used in developed countries in Europe and the United States, Australia, Japan and other foreign countries. To achieve these two low floors, independent rotating wheel truck technology must be used. For 100% low-floor trains, all bogies of the vehicle must adopt independent rotating wheel bogie technology, while for 70% low-floor, intermediate non-articulated vehicles must adopt independent rotating wheel bogie technology, so as to ensure the realization of low-floor passenger compartments. It is also gradually introducing, digesting and promoting this low-floor train technology. [0003] At present, the marshalling type of the main low-floor...

AI Technical Summary

Problems solved by technology

Judging from the current application situation at home and abroad, there are big problems that the wheel set of the middle bogie (used to support the Tp car or T car) cannot be centered in a straight line, the rim is eccentrically worn, and the guiding ability is insufficient when running in a curve. Loud noise, etc.

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