Lightweight side wall structure and railway vehicle

Abstract

The invention provides a light-weight side wall structure and a railway vehicle. The light-weight side wall structure comprises an upper profile, a middle profile and a lower profile, wherein the upper section bar is arranged close to the roof; the middle section bar is connected to the lower part of the upper section bar and is connected with the upper section bar in an inserting and welding manner; the lower section bar is connected to the lower part of the middle section bar and is connected with the middle section bar in an inserting and welding manner; the thickness of the inner wall plate on the side, adjacent to the automobile door, of the upper profile is larger than that of the inner wall plate on the side away from the automobile door. According to the lightweight side wall structure provided by the invention, the whole side wall is arranged in a form of combining the upper section bar, the middle section bar and the lower section bar; therefore, the rigidity and the strength of the area which needs to be set to be high-strength above the automobile door are improved by increasing the thickness of the inner side plate, close to the automobile door part, of the upper sectional material, whereas for other parts, the thickness of the plate is smaller. On the premise that the strength of the vehicle body is guaranteed, the weight of the vehicle body is reduced conveniently, and light-weight design can be achieved easily.

Description

technical field [0001] The invention belongs to the technical field of side wall structures, and more specifically relates to a lightweight side wall structure and a rail vehicle provided with the lightweight side wall structure. Background technique [0002] In large and medium-sized cities in my country, rapid urban rail transit can effectively shorten people's travel time, evacuate the population in the core area, and decompose the traffic pressure in the central urban area. Therefore, the above transportation methods can meet the development requirements of new cities. Urban rail vehicles have the characteristics of large passenger capacity, quick start and stop, and fast boarding and landing, and are used to meet the travel needs of commuting, business, and school in the urban life circle. [0003] In a rail vehicle, the side wall is a key component connecting the underframe and the roof, acting as a link between the preceding and the following. Whether the structural ...

AI Technical Summary

Problems solved by technology

However, in the existing processing process, the profile is formed by extrusion, and this processing method cannot be extruded with a variable cross section. The thinner plate thickness of t...

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