Rail vehicle spliced ​​air-conditioning duct and assembly method thereof

Abstract

The invention relates to a railway vehicle splicing type air conditioning duct and a splicing method thereof. A duct frame is fixed on a main bearing frame of a vehicle body long a length direction of the vehicle body, a top plate, a side plate and an end plate are fixedly connected on the duct frame, the duct is an enclosed cavity which is surrounded by the top plate, the side plate, the end plate and an in-vehicle top plate, and one or more air supply outlets for supplying air into coaches are arranged on one side or two sides of the in-vehicle top plate along the length direction of the vehicle body. An independent air supply duct is not needed, and the duct cavity is formed by surrounding of a frame structure of the vehicle body, a duct frame and the plates, so that the structure of the duct is simplified, and mounting space of the duct is saved; and total weight of a vehicle is reduced, splicing of a finished car can be achieved, splicing process is simple, and mounting and maintenance are benefitted.

Description

technical field [0001] The invention relates to an air-conditioning air duct, in particular to a spliced ​​air-conditioning air duct used on rail vehicles such as subways and an assembly method thereof, belonging to the technical field of rail vehicle manufacturing. Background technique [0002] In rail vehicles such as subways, each carriage is generally equipped with two air-conditioning units, and each air-conditioning unit adopts a unit structure, and the whole air-conditioning unit is arranged on the roof or hung on the bottom of the vehicle. The air conditioning unit is connected with the air supply port and the return air port in the car through the air supply duct and the return air duct. [0003] In existing rail vehicles such as subways, one or more air supply ducts are independently installed in the space above the roof of the vehicle. The air supply ducts are formed by splicing metal plates and fixed on the car body by bolts. In order to be able to install the a...

AI Technical Summary

Problems solved by technology

In order to be able to install the air supply duct, there must be enough space on the roof, which will increase the height of the vehicle, or occupy the space in the compartment, or relatively reduce the cross-sectional area of ​​the air supply duct, but this will affect the air supply. Air volume, and setting up an independent air supply duct on the roof will also increase the total weight of the vehicle

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