Lightweight subway car body with new tension pillow structure

Abstract

The invention provides a light-weight metro vehicle body with a novel traction sleeper buffer structure and belongs to the field of full-aluminum product metro vehicle body devices. The light-weight metro vehicle body comprises a chassis, a vehicle roof, two end walls, multiple side wall boards and a full-aluminum product traction sleeper buffer device. The chassis comprises a rectangular floor frame jointly defined by two side beams and two end beams and a floor located in the floor frame. The traction sleeper buffer device comprises a sleeper beam, a traction beam, a draw gear installation seat and two buffer beams. A traction beam lower cover plate and a buffer beam lower cover plate of the full-aluminum product traction sleeper buffer device of the light-weight metro vehicle body are both made of a profile aluminum plate material which is low in density, light in weight and good in bending performance, the draw gear installation seat is made from aluminum plates high in yield stress, other straight plate structures are all made of an aluminum plate material high in yield stress, overall selected materials of the traction sleeper buffer device meet the strength standard, and theprocessing property of welding and manufacturing of the traction sleeper buffer device is the best; and all lightening holes can be simultaneously used as auxiliary holes in the inner cavity weldingoperation process, so that the accessibility and welding quality of inner cavity welding joints are improved.

Description

technical field [0001] The invention belongs to the field of all-aluminum subway vehicle body devices, and in particular relates to a lightweight subway car body with a novel lead-pillow buffer structure. Background technique [0002] Subway vehicles have the characteristics of safety, comfort, speed and environmental protection, large transportation capacity and low energy consumption, and have become an important part of urban public transportation. However, as the speed of the train increases, its requirements for the strength of the car body structure also increase. Although the old car body structures such as carbon steel and stainless steel meet the requirements of the strength of the car body structure, the weight index of the car body is affected by the material. Constraints, unable to meet the requirements of lightweight, resulting in large power consumption and high operating costs. In order to further reduce the weight of the car body, reduce energy consumption a...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem that the technical parameters of the existing carbon steel and stainless steel car bodies cannot be used for reference and guide the design of the all-aluminum B-type next-generation light-weight subway train, the new model is completely There is no technical problem that there is no unified standard for the core structural parameters such as the aluminum structure and the entire car body, such as the selection of aluminum materials and the characteristics of external dimensions. The present invention provides a light-weight subway car body with a new type of pillow structure

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