Urban rail door sheet

Abstract

The invention discloses an urban rail door sheet, which comprises a skin, an aluminum honeycomb and a section bar framework, wherein the skin comprises an outer skin and an inner skin; the outer skinis arranged on the outer side of the door sheet; the inner skin is arranged on the inner side of the door sheet; the section bar framework comprises an upper rail, a lower rail, a front rail and a rear rail; the upper rail is installed on the top of the door sheet; the lower rail is installed on the bottom of the door sheet and is provided with a lower slideway installation connector; a mounting rack is arranged left below the upper rail; the door sheet is provided with a window frame; and a handle is arranged near the window frame. The door sheet is manufactured by an integral one-time soldering and brazing technology, the quality distribution of the door sheet is even, and strength and stiffness contributions are even.

Description

technical field [0001] The invention relates to the technical field of urban rail transit, in particular to an urban rail door panel. Background technique [0002] The track door panels are assembled on the rail transit trains and are used to cover the side entrances and exits of the train body. The quality of the traditional urban rail door panels is mainly concentrated in the door frame profiles, so the rigidity mainly depends on the door panel frame. The existing urban rail door panels are mostly made of glued aluminum. The honeycomb panel structure and the production method of glued door panels are difficult to meet the requirements of stable market growth and green manufacturing, and the adhesive is easy to age, and the life of the door panel is difficult to guarantee, which has certain technological limitations; while brazing is a metallurgical combination, which has long life, With the advantages of high temperature resistance, sound insulation and heat insulation per...

AI Technical Summary

Problems solved by technology

[0002] The track door panels are assembled on the rail transit trains and are used to cover the side entrances and exits of the train body. The quality of the traditional urban rail door panels is mainly concentrated in the door frame profiles, so the rigidity mainly depends on the door panel frame. The existing urban rail door panels are mostly made of glued aluminum. The honeycomb panel structure and the production method of glued door panels are difficult to meet the requirements of stable market growth and green manufacturing, and the adhesive is easy to age, and the life of the door panel is difficult to guarantee, which has certain technological limitations; while brazing is a metallurgical combination, which has long life, With the advantages of high temperature resistance, sound insulation and heat insulation performance, the step-by-step brazing process is mostly used for production at present. If the existing adhesive door panel structure is directly replaced by the step-by-step brazing process, its weight is mainly concentrated around the door frame, so that As a result, parts are heated unevenly, it is difficult to ensure the quality of brazing, and the cost is high; at the same time, the uneven weight distribution caused by the main weight of the door panel is distributed around the door frame, which will also reduce the quality of the door panel

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