Front cabin structure of off-road vehicle body

Abstract

The invention relates to the technical field of automobile structures, in particular to a front cabin structure of an off-road vehicle body. The structure comprises a floor assembly, side reinforcing assemblies are arranged on the two transverse sides of the floor assembly in the vertical direction, and the lower ends of the side reinforcing assemblies are fixed to the transverse sides of the floor assembly; a cabin longitudinal beam assembly which is arranged in the longitudinal direction, and the end, close to the floor assembly, of the cabin longitudinal beam assembly is fixed to the upper end of the side reinforcing assembly; a front wall assembly which is arranged in the transverse direction, and the two ends of the front wall assembly are fixedly connected with the side reinforcing assemblies on the two sides respectively; a water tank cross beam assembly which is transversely arranged, and the two ends of the water tank cross beam assembly are fixedly connected with the cabin longitudinal beam assemblies on the two sides; the lower end of the front wall assembly is fixed to the floor assembly, and the lower end of the front wall assembly, the side reinforcing assemblies on the two sides and the floor assembly form a stress cavity space for dissipating the bending moment and torque of the cabin longitudinal beam assembly. The front cabin is simple in structure, can bear large longitudinal stress by constructing a frame type structure, and is good in structural stability and high in lightweight degree.

Description

technical field [0001] The invention relates to the technical field of automobile structures, in particular to a front cabin 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. Under the existing technology, there is a big difference between the cabin and the connecting structure without frame and the cabin and connecting structure with frame; It is composed of bumper modules with integrated performance, and the rear part is composed of...

AI Technical Summary

Problems solved by technology

However, the structure of the front cabin has the following defects: the structure of the cabin scheme is cumbersome, but the connection form used is relatively simple, which cannot fully express the good overall structure formed by the connection between the cabin and the body structure; the left and right longitudinal beams are made of profile tubes The material is directly bent, and the reliability of the welding or connection between the pipe beam and the body is not very high. It may not be a big problem when applied to low-speed vehicles, but there is a problem of poor safety when applied to large off-road vehicles.

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