Connecting structure for underframe edge beam and side wall of straddle-type monorail vehicle body

Abstract

Disclosed is a connecting structure for an underframe edge beam and a side wall of a straddle-type monorail vehicle body. The connecting structure for the underframe edge beam and the side wall of thestraddle-type monorail vehicle body is capable of improving the structural strength of an underframe structure, simplifying the manufacturing process, and greatly reducing the arc welding quantity. The whole structure is formed by combining and welding hollow double-wall large aluminum alloy extrusion profiles, and the structure is designed to be lightweight. The longitudinal full-length arrangement of an underframe edge beam profile ensures that the strength and rigidity of the vehicle body satisfy the requirements under the action of longitudinal, vertical, torsional and other loads. An insertion connector is designed at the connecting position of the underframe edge beam profile and the side wall so as to simplify the connecting form of the side wall and an underframe, improve the assembly precision of the side wall and the underframe, reduce the assembly difficulty, reduce the amount of welding seams at the connecting position of the side wall and the underframe, and improve the overall quality and precision. A lap joint connector is designed at the position where the underframe edge beam profile is connected to an aluminum bottom plate in the horizontal direction, and the structure is convenient to be assembled and welded to the aluminum bottom plate. The overall width of the underframe aluminum structure can be adjusted during underframe final assembly, and the requirement for manufacturing precision is satisfied.

Description

technical field [0001] The invention belongs to the technical field of rail vehicle body manufacturing, and in particular relates to a monorail car body underframe edge beam and side wall connection structure. Background technique [0002] Straddle-type monorail transit is a typical urban rail transit system, which has unique advantages such as strong terrain adaptability, large climbing ability, small turning radius, less land resource occupation, low noise, short construction period, and low cost. In multi-system urban rail transit, the comprehensive advantages of elevated line operation are obvious. The unique advantages determine that this standard urban rail transit system has a wide space for further promotion and application. [0003] The side beam of the traditional straddle-type monorail underframe adopts a rectangular cavity aluminum profile structure, and the side wall aluminum profile connected to it adopts an open structure, which is difficult to meet the load-...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a straddle-type monorail car body underframe side beam and side wall connection structure based on the lightweight and modular design trend of the monorail car body structure, so as to solve the complicated manufacturing process of the side beams in the prior art. Arc welding has a large amount of welding and welding is difficult

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