A high-speed EMU and its car body and end wall structure

Abstract

The invention discloses a high speed train and a vehicle body and an end wall structure. The end wall structure comprises end door pillars (6) and an end wall body, and is characterized in that the end wall body comprises two end wall side panels (1) which are located on the left and on the right respectively and a top panel connected with the two end wall side panels (1), a door frame of the end wall structure is defined by the inner sides of the two side panels and the top panel, the inner sides of the end wall side panels are both provided with the end door pillars (6), and each end door pillar (6) and the corresponding end wall side panel (1) are of an integral structure; compared with the prior art, each end door pillar and the end wall side panel connected with the door pillar are integrally formed, welding connection is not needed for the end door pillars and the end wall side panels, the end wall side panels are not affected by the welding heat, so that welding deformation is eliminated and assembly precision of the vehicle body is improved, in addition the welding process is not needed so that the processing cost of the end wall structure can be reduced to some extent.

Description

Technical field [0001] The invention relates to the technical field of high-speed trains, in particular to a high-speed EMU, car body and end wall structure. Background technique [0002] The main structure of the high-speed EMU includes: traction equipment, bogies, car bodies and other parts. The car body is one of the main components of the train. The car body is not only a carrier for passengers, but also installation and connection of several other components (such as : The foundation of running gear, braking device, car-end connecting device, vehicle interior decoration equipment, etc.). [0003] Generally, the car body is composed of the driver's cab (head car, tail car), underframe, roof, side walls, end walls and various accessories of the car body. The end wall is generally set between the two cars, and the two end walls The side is connected to the side wall of the car body, the top outer edge of the end wall is connected to the roof, and the bottom of the end wall is co...

AI Technical Summary

Problems solved by technology

At this stage, the end door column is generally connected to the main body of the end wall by welding, but when the end door column and the main body of the end wall are welded, the temperature of the welding part is higher than that of other parts of the main body of the end wall, so that the inside of the main body of the end wall is not heated. Uniform, the main body of the end wall is deformed after welding, which increases the assembly error between the end wall and other matching parts of the car body. When the main body of the end wall is seriously deformed, the end wall cannot be assembled on the car body

[0005] In addition, after the main body of the end wall and the column of the end door are welded, the weld seams of the two need to be processed, which increases the use cost of the product to a certain extent

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