Universal pure-electric bus underframe structure

Abstract

The invention relates to a truss underframe structure applicable to bearing and non-bearing pure-electric buses. The universal pure-electric bus underframe structure includes an underframe front segment (1), an underframe middle segment (2) and an underframe rear segment (3), the underframe middle segment (2) is of complete truss structure, and fixed oblique supports (19) for a floor layer (12) and a lower floor layer (13) of the underframe middle segment (2) are staggered. Front and rear ends of a longitudinal truss I (4) ends at an axle (16), longitudinal trusses II and III (5) and (6) are of keel structure passing through a whole underframe, front and rear ends of a longitudinal truss VI (7) ends at the axle (16), the middle of the longitudinal truss VI (7) breaks at a door step (17). The longitudinal truss III (6) uses the fixed oblique supports (19), and the longitudinal trusses I, II and VI (4), (5) and (7) use tensioner type moving oblique supports (14).

Description

technical field [0001] The patent of the present invention relates to the field of bus body structure design, in particular to a truss-type underframe structure that can be applied to load-bearing and non-load-bearing pure electric buses at the same time. technical background [0002] With the rapid development of railway vehicles such as high-speed trains, long-distance highway buses parallel to them are gradually being replaced, and the sales volume of short- and medium-distance buses complementary to them is increasing year by year. And with the intensification of global energy and environmental crisis, pure electric bus has become a key research object because of its many advantages. [0003] At present, the research on the structure of pure electric buses in my country is still at a low level. Basically, the powertrain is replaced on the basis of the structure of traditional internal combustion engine buses and the existing structure is partially modified, resulting in ...

AI Technical Summary

Problems solved by technology

In the process of assembling the load-bearing body and the non-load-bearing body with the chassis and when welding the chassis structure, the tooling and fixtures cannot be shared, and the production platform is shared or partially shared, which leads to a long design cycle of the bus body structure and high design and development costs. The range increases, which further increases the production cost

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