Car roof edge beam, car roof, railway vehicle and car roof preparation method

Abstract

The invention discloses a car roof edge beam. The car roof edge beam is characterized by comprising a car roof main edge beam and an auxiliary edge beam; the car roof main edge beam is of an integrated structure and comprises a base body and a connecting part, the lower end of the base body is used for being connected with a side wall of a car body, the connecting part is used for being connected with a first car roof, and the base body is of a general structure in the longitudinal direction; the lower ends of the auxiliary edge beams are welded and fixed with the base body, and the upper ends of the auxiliary edge beams are used for being connected with a second car roof; in the longitudinal direction, part of the base bodies are correspondingly provided with the auxiliary boundary beams, part of the base bodies are correspondingly provided with the connecting parts, and the parts provided with the auxiliary boundary beams are not provided with the connecting parts; and the second car roof is higher than the first car roof. The car roof main edge beam has the advantage of simple full-length roof structure, is convenient to drain, effectively avoids water accumulation on a car roof, and has the characteristics of small aerodynamic resistance of high and low roofs, continuous appearance and the like; and the roof edge beam is high in modularization degree and high in universality, and the weight of a vehicle body can be reduced.

Description

technical field [0001] The invention relates to a vehicle roof side beam, a vehicle roof and a rail vehicle, the technical field of rail vehicles, especially the technical field of the roof side beam. Background technique [0002] There are a large number of users of subway vehicles, and there are also many requirements for personalized vehicle technology. At present, there are only three types of return air for passenger room air conditioners: end-to-end return, bottom-to-bottom return, and end-to-bottom return. In the bottom supply and bottom return, there are two kinds of concentrated return air and scattered return air. However, Type A and Type B vehicles have different cooling and heating heat requirements, and the climate difference between the north and the south is large, resulting in inconsistent air-conditioning power, which has a great impact on the size of the air-conditioning itself, which in turn leads to various types of installation platforms for the air-con...

AI Technical Summary

Problems solved by technology

However, for vehicles with air conditioners arranged in the longitudinal middle (vehicles with a speed of 120 kilometers per hour have a greater impact on air resistance, so it is usually necessary to set up a shroud to reduce running resistance), the distance between the driver's cab hood and the air conditioner is relatively long, even reaching 5 meters, and the air deflector must bear the weight of the maintenance personnel, and the strength requirement is high. At this time, adding an excessively long air deflector will significantly increase the weight of the vehicle, and it will become extremely difficult to control the axle load of the train.

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