Head car body structure of high-floor tramcar

Abstract

The invention discloses a head car body structure of a high-floor tramcar. The head car body structure comprises a base frame, side walls, a roof, a driver cab, an end wall, and an upper / lower hinge seat. The base frame, the side walls, the roof and the end wall are connected by welding, the driver cab is connected to the base frame and the roof by bolts, and the upper / lower hinge seat is rivetedto the end wall and the base frame respectively. The car body structure is mainly made by welding of hollow-section extrusion aluminum-type materials. In the manner, the car body structure has a goodlightweight effect and a good noise isolation performance while meeting the requirements of strength; and at the same time, window columns adopt an arc design, so that the area of a window frame is increased, and passengers can enjoy more wild field of vision to meet the needs of tour and sightseeing. In addition, the upper and lower hinge seats are riveted and cooperate with each other to effectively improve the connection strength with the car body. Even if the car body is larger than 12 meters, the car body structure can ensure sufficient connection strength.

Description

technical field [0001] The invention relates to the technical field of rail vehicles, in particular to a head car body structure of a high-floor tram. Background technique [0002] The existing trolley car body structure includes: underframe, side wall, roof, driver's cab, end wall and hinged seat. During actual use, it is found that it has the following defects: [0003] 1. The underframe is made of high-strength weather-resistant steel and stainless steel tailor-welded as a whole, and the use of high-strength materials is increased at the place where the welding stress is concentrated, which not only increases the weight of the vehicle, but also increases the noise transmission path and reduces the ride comfort. sex; [0004] 2. The underframe has protrusions in the bogie area, the car body has poor permeability and the interior space is small; [0005] 3. The window area on the side wall is small, and the passenger's vision is narrow, which cannot meet the needs of tour...

AI Technical Summary

Problems solved by technology

[0003] 1. The underframe is made of high-strength weather-resistant steel and stainless steel tailor-welded as a whole, and the use of high-strength materials is increased at the place where the welding stress is concentrated, which not only increases the weight of the vehicle, but also increases the noise transmission path, reducing the ride comfort sex;

[0004] 2. The underframe has protrusions in the bogie area, the car body has poor permeability and the interior space is small;

[0005] 3. The window area on the side wall is small, and the passenger's vision is narrow, which cannot meet the needs of tourism;

[0006] 4. The electrical equipment of the vehicle is almost all installed on the roof, which increases the requirements for the strength, rigidity, impact vibration and other requirements of the side wall and roof structure;

[0007] In addition, it is also found that since the existing car body is generally less than 10 meters, the connection strength of the existing hinged seat cannot adapt to the car body structure exceeding 12 meters.

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