Outer flange structure of air flue of railway vehicle

Abstract

The invention relates to an outer flange structure of an air flue of a railway vehicle. The outer flange structure comprises an outer flange barrel and an outer flange edge, wherein the outer flange barrel is defined by four wing plates, the bottom ends of the left wing plate and the right wing plate of the outer flange barrel are aligned at the bottom end of the outer flange edge, and the left wing plate and the right wing plate of the outer flange barrel and the outer flange edge are jointly located on a vehicle flat roof plate; and the four wing plates of the outer flange barrel and a top plate of the middle end of the vehicle are fixedly welded. According to the outer flange structure of the air flue of the railway vehicle, innovation is made on the basis of a conventional structure; the brand-new design structure and the brand-new welding process are adopted, the caliber of the outer flange barrel of the air flue is enlarged, and the wing plates on the two sides and the lowermost edge of the outer flange edge extend to the flat roof plate. When a roof is positively installed, an outer flange of the air flue is directly located on the flat roof, the wing plates of the outer flange barrel of the air flue and the lowermost edge of the flange are directly welded to the flat roof plate, the lateral faces of the wing plates of the outer flange of the air flue and the top plate at the middle end are welded, and therefore the outer flange structure of the air flue can meet the installation requirement of an outer air flue of an air-conditioner and the requirement for the sealing performance of a vehicle body steel structure at the same time; and in addition, the structure is simple, and the process is easy to implement.

Description

technical field [0001] The invention relates to an outer flange structure of a rail vehicle air duct, and belongs to the technical field of rail vehicle body structure design. Background technique [0002] The flat top 7 in the steel structure of the rail passenger car roof is mainly used to install the air conditioning unit 4, the middle end top 1 divides the air duct connected to the air conditioner into two, the outer air duct 5 is outside the middle end top 1, and the middle end top 1 is the outer air duct 5. Inside the top 1 is the inner air duct 6, and the two are connected by the inner and outer flanges 3 and 2 of the steel structure air duct, such as figure 1 shown. [0003] The inner and outer flanges of the air duct are connected at the top of the middle part. In order to ensure the sealing performance after connection, the outer flange of the air duct needs to be fully welded with the top of the middle part ( figure 1 Arrow), but the premise of full welding is t...

AI Technical Summary

Problems solved by technology

[0004] The development of rail transit is changing with each passing day, and there are more and more types of rail vehicles. The height of the roof of each rail vehicle project and the height of the flat roof for installing air conditioners are also different. In recent years, there have been many cases where the outer flange of the air duct is full Situations where welding cannot be achieved

In order to ensure the sealing performance of the car body, the interface between the lower opening of the outer flange of the air duct and the top of the middle part is glued, but the sealing is not ideal. It is necessary to innovate a structure of the outer flange of the air duct at the top of the middle part, which can meet the needs of both the inside and outside of the air conditioner. The installation requirements of the air duct and the sealing performance of the steel structure of the car body here

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