Connection structure for aluminum vehicle body end of rail vehicle

Abstract

The invention discloses a connection structure for the aluminum vehicle body end of a rail vehicle. The connection structure comprises a vehicle roof, an end wall and a side wall and is characterized in that closed profiles are welded to the two sides and the top arc position of an aluminum structure of the end wall, and interfaces among the closed profiles, the vehicle roof and the side wall are provided with downwards concave steps. According to the connection structure for the aluminum vehicle body end of the rail vehicle, the closed profiles are welded to the two sides and the top arc position of the aluminum structure of the end wall, and the interfaces among the closed profiles, the vehicle roof and the side wall are provided with the downwards concave steps, so that the quality and strength of a welded surface are greatly improved, vehicle body bearing and stress transferring are facilitated, and the strength and rigidity of a whole vehicle are greatly improved; and welded seams are detected after welding, the sealing performance of the vehicle body is ensured under the condition that seal gum is not used, and the vehicle body water leakage phenomenon is avoided.

Description

technical field [0001] The invention is suitable for the end connection of the aluminum alloy car body part of the rail vehicle, especially the end connection structure of the aluminum alloy car body of the large part of the aluminum alloy car body of the monorail car. Background technique [0002] With the rapid growth of my country's urban population and the gradual formation of urban agglomerations, the pressure on urban and intercity traffic is increasing, and the demand for rail transit vehicles is increasing. At present, rail vehicle body structure materials are transformed from steel to lightweight and corrosion-resistant aluminum alloy body structures. Vehicle aluminum alloy bodies are widely used in monorail urban rail transit. The interface of the components adopts the inner and outer two-layer angle aluminum connection structure, the inner welding, the outer riveting connection, and the sealant is applied to the gap between the inner and outer angle aluminum. Thi...

AI Technical Summary

Problems solved by technology

This connection method will cause the rivets to loosen or the sealant to age after the car body has been used for a period of time, which will easily cause water leakage on the car body, and both the rivets and the angle aluminum are leaking and affect the appearance of the whole body. In addition, because the ends are connected by angle aluminum Ways to reduce the strength and stiffness of the vehicle

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