Car body structure of light weight railway vehicle

Abstract

The invention discloses a car body structure of light weight railway vehicle. The car body structure of light weight railway vehicle comprises a car body upper part bearing girder composed of two top cover long girders and two top cover side girders, two bottom shelf side girders as car body lower part bearing girder, framework structure composed by connecting the guest room door stand column, side wall support girder and cab door stand column to the car body upper part bearing girder and the car body lower part bearing girder; the framework structure is fixedly connected to the bottom shelf end structure, cab framework, end wall framework for forming the framework structure; the stressed-skin structure is composed of the arc top cover, top cover isolated wall, air conditioning baseboard, pantograph baseboard, bottom shelf baseboard and side wall plate between two top cover long girders; the top cover side girder and the bottom shelf side girder are fixedly connected through the integrated side wall support girder; the air conditioning baseboard and the pantograph baseboard are formed on the same platform at the same height; the bottom shelf side girder has the structure for hooking under the car. The weight of the vehicle body can be reduced for 1 / 10 while the structure strength is guaranteed.

Description

technical field [0001] The invention relates to a lightweight rail vehicle body structure, which belongs to the field of rail vehicle body structures. Background technique [0002] At present, the weight of each car body of the B-type aluminum alloy car body that can withstand the load of 1000kN in domestic subway vehicles is generally more than 6.7t, and the weight of each car body of the A-type aluminum alloy car body that can withstand the load of 1200kN is generally more than 8.5t. The floor of the car body chassis, side wall panels, and air-conditioning installation platforms have a lot of redundant strength, while the arc roof with open profiles has low stiffness and cannot play a good load-bearing role. In order to save energy and reduce consumption, subway operators have become more and more strict on the weight control of vehicles. At the same time, they also propose to install heavy components such as aluminum honeycomb floor or sound insulation board in terms of n...

AI Technical Summary

Problems solved by technology

The floor of the car body chassis, side wall panels, air-conditioning installation platform and other parts have a lot of redundant strength, while the arc roof with open profiles has low stiffness and cannot play a good load-bearing role

In order to save energy and reduce consumption, subway operators have become more and more strict on the weight control of vehicles. At the same time, they also propose to install heavy components such as aluminum honeycomb floor or sound insulation board in terms of noise reduction, which makes the original car body structure more and more unsatisfactory. Social Development and Market Demand

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