End wall structure and manufacturing method thereof

Abstract

The invention provides an end wall structure and a manufacturing method thereof, and the end wall structure comprises an end wall panel and an end wall outer frame; the end wall panel comprises a plurality of profiles; the end wall outer frame is arranged at the edge position of the end wall panel; the inner ring of the end wall outer frame is provided with a groove-shaped nesting interface, and the edge of the end wall panel is inserted into the nesting interface; a lap joint connector is arranged on the outer ring of the end wall outer frame and used for being connected with other vehicle body structures. According to the end wall structure and the manufacturing method thereof provided by the embodiment of the invention, the end wall panel can be inserted into the nesting interface in an inserting manner to realize connection, and the nesting interface can cover the end wall panel on the inner side and the outer side of a carriage, so that the air tightness and the sound insulation of the connecting part between the end wall panel and the end wall outer frame can be improved; and the local strength of the outer frame area can be improved through the nested structure, the sectional material thickness of the end wall panel is not increased, and the light weight effect can be achieved.

Description

technical field [0001] The invention relates to the technical field of rail transit vehicles, in particular to an end wall structure and a manufacturing method thereof. Background technique [0002] The body of a rail vehicle generally includes an underframe, side walls, end walls and roof. The end wall is located at the end of the car body and is a large structural part that simultaneously connects the roof, side walls, and underframe; the middle of the end wall has a door shape. A space, which may be referred to as a door area, through which passengers pass. [0003] In order to facilitate the modular installation of end walls, side walls, roofs, etc., frame-shaped connectors can be provided between the end walls and side walls, roofs, etc., but the connectors mainly play the role of fixed connections. With the continuous improvement of the design speed level of rail transit vehicles (such as urban trains, intercity trains, bullet trains, high-speed trains, maglev trains,...

AI Technical Summary

Problems solved by technology

With the continuous improvement of the design speed level of rail transit vehicles (such as urban trains, intercity trains, bullet trains, high-speed trains, maglev trains, etc.), higher requirements are put forward for the airtightness and sound insulation of the existing train end walls. The installation of connectors will easily lead to poor airtightness and sound insulation of the end wall

Moreover, in order to meet the lightweight requirements of the car body, the end wall is generally not a solid structure, the overall strength of the end wall is poor, and the bearing capacity is low

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