Roof edge beam of low-floor tramcar

A technology for trams and roof side beams, applied in the field of rail vehicles, can solve the problems of heavy weight, cumbersome assembly and welding processes, poor welding seam fatigue performance, etc., to optimize structural design, improve structural strength and bearing capacity, The effect of enhancing the overall structural strength

Inactive Publication Date: 2020-06-02
中铁轨道交通装备有限公司
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Problems solved by technology

[0002] The tram is one of the important tools of modern urban rail transit. The roof is one of the important components of the tram body, and the roof carries a variety of tram electrical equipment, so the roof must meet the strength requirements. As the key component of the roof, the side beam is also the main load-bearing part of the roof, which must meet the design requirements of the vertical bearing

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  • Roof edge beam of low-floor tramcar

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[0016] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0017] Please refer to figure 1 , the present invention includes:

[0018] A roof side beam of a low-floor tram, comprising: a side beam base 100, the side beam base 100 is composed of a hollow structural aluminum profile formed by one-time extrusion, and is respectively composed of a group of aluminum profiles horizontally placed along the longitudinal direction. The profile is welded together with a group of aluminum profiles placed vertically along the longitudinal direction. The cross-section of the side beam base 100 is a hollow truss structure, and the hollow truss structure is composed of a vertical hollow truss structure and a horizontal ...

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Abstract

The invention discloses a roof edge beam of a low-floor tramcar. The roof edge beam comprises a boundary beam base body, and the edge beam base body is formed by combining hollow structure aluminum profiles formed through one-time extrusion. The cross section of the edge beam base body is of a hollow truss structure, the hollow truss structure is composed of a vertical hollow truss structure and atransverse hollow truss structure, and the transverse hollow truss structure is integrally connected to one side of the vertical hollow truss structure and forms a V shape with the vertical hollow truss structure. In this way, the hollow structure aluminum profile formed by one-step extrusion is adopted, a large amount of assembling, splicing and welding work is omitted, the overall structural strength of the edge beam base body is enhanced through the truss structure arranged in the aluminum profile, particularly, the cross section of the combined edge beam base body is of a V-shaped hollowtruss structure, transmission of longitudinal force and transverse force of the edge beam base body can be ensured, the structural strength and the bearing capacity of the edge beam base body are effectively improved, and the v meets the requirements for high strength and light weight at the same time.

Description

technical field [0001] The invention relates to the technical field of rail vehicles, in particular to a roof side beam of a low-floor tram. Background technique [0002] The tram is one of the important tools of modern urban rail transit. The roof is one of the important components of the tram body, and the roof carries a variety of tram electrical equipment, so the roof must meet the strength requirements. As the key component of the roof, the side beam is also the main load-bearing part of the roof, which must meet the design requirements of the vertical bearing capacity of the roof. However, the existing roof side beams are generally welded by weathering steel , in order to improve the bearing capacity of the side beam structure, the use of high-strength weathering steel materials is increased in the welding stress concentration, resulting in cumbersome assembly and welding processes, and there are defects such as poor weld fatigue performance and heavy quality. Conten...

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Application Information

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IPC IPC(8): B61D17/12
CPCB61D17/12
Inventor 杨坤阚松刘琳峰陈晨刘威
Owner 中铁轨道交通装备有限公司
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