Structural steel framework of railway passenger car body

Abstract

The invention relates to a structural steel framework of a railway passenger car body. The structural steel framework comprises a base frame welding framework, side wall welding frameworks and a car roof welding framework, wherein a car body framework is formed in a manner that each closed frame body formed by portable assisting beams, vertical beams and a car roof cross beam, and a covering wrapper sheet set are welded together, and has large strength and large rigidity; a bogie of a passenger car is not used, and a scheme of single wheel pairs is used, so that a base frame sleeper beam is replaced with an I-shaped beam, the carrying capacity of the I-shaped beam is better, the I-shaped beam and the base frame welding framework can form a criss-cross beam structure, and the integral stability is good; wheel set seats are large at the upper part and small at the lower part, and are small in size and strong in carrying capacity; a center beam adopts a box type structure, and stiffened plates are arranged in the center beam, so that a closed box type structure is formed for bearing main traction and pulling force; a front end beam and a rear end beam respectively adopt a wing-shaped structure, and the structure is stable; and a longitudinal beam and a cross beam of the car roof welding framework are formed by the welding of deformed steel plates, and the deformed steel plates are high in structural strength, not liable to bend, light in weight, and suitable for the car roof structure.

Description

technical field [0001] The invention relates to rail transportation, in particular to a steel structure frame of a railway passenger car body. Background technique [0002] The railway passenger car body is mainly composed of steel structure frame and skin. The design of the steel structure frame directly affects the structural strength and weight of the railway passenger car body. In the prior art, in order to improve the overall structural strength of the railway passenger car body, the steel structure frame of the car body is welded with a large amount of steel materials. Due to the reasonable layout of the steel structure frame of the car body, a large amount of steel material welding is used to make up for the defects, but it increases The overall weight of the vehicle body. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a steel structure frame of a railway passenger car body, which has reasonable structur...

AI Technical Summary

Problems solved by technology

In the existing technology, in order to improve the overall structural strength of the railway passenger car body, the steel structure frame of the car body is welded with a large amount of steel materi...

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