Front cabin longitudinal beam structure of off-road vehicle body

Abstract

The invention relates to the technical field of automobile front cabin part structures, in particular to a front cabin longitudinal beam structure of an off-road vehicle body. The front cabin longitudinal beam structure comprises a longitudinal beam upper tubular beam which is horizontally and longitudinally arranged; and a longitudinal beam lower tubular beam which is horizontally and longitudinally arranged below the longitudinal beam upper tubular beam and fixedly connected with the longitudinal beam upper tubular beam into a whole; the longitudinal beam upper pipe beam comprises an upper longitudinal pipe arranged in the longitudinal direction and an upper transverse pipe located at the front end of the upper longitudinal pipe; the longitudinal beam lower pipe beam comprises a lower longitudinal pipe arranged in the longitudinal direction and a lower transverse pipe located at the front end of the lower longitudinal pipe; and the upper transverse pipes and the lower transverse pipes are arranged in a staggered mode in the longitudinal direction. The front cabin longitudinal beam structure is simple in structure, high in lightweight degree and high in longitudinal stress conduction efficiency, the longitudinal beam assembly has a good crumple energy absorption effect by forming a longitudinally staggered graded buffer structure, safety protection of passengers in a cabin is improved, and the front cabin longitudinal beam structure has great popularization value.

Description

technical field [0001] The invention relates to the technical field of automobile front engine room component structures, in particular to a front engine room longitudinal beam structure of an off-road vehicle body. Background technique [0002] With the development of today's automobiles, especially the rise of electric vehicles, the requirements for lightweight are becoming more and more stringent, and lightweight has become the focus of research and the goal pursued by various companies. Based on the current non-load-bearing body field, the composition of the nacelle is mostly in the form of cavity beams combined with stamping parts. Its own structure and connection structure are relatively complicated, and there are many parts, so it cannot be truly lightweight. The front cabin longitudinal beam structure is an important structure used to bear the longitudinal force of the front end of the vehicle body. It must have good structural strength and must have a certain buffer...

AI Technical Summary

Problems solved by technology

The left longitudinal beam assembly and the right longitudinal beam assembly in this scheme are single beam body assemblies arranged longitudinally. Although the structural strength is guaranteed, the single beam body has a large structural weight and does not have a certain The collapse energy absorption effect cannot effectively grade the buffer to protect the safety of the cabin crew

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