Multi-axle off-road vehicle frame structure with variable axle distance

Abstract

The invention discloses a multi-axle off-road vehicle frame structure with a variable axle distance. The multi-axle off-road vehicle frame structure comprises a front bumper, a vehicle body front suspension beam, a front axle structure, a cross beam, longitudinal beams, a vehicle body rear suspension beam, a container supporting structure, a middle axle structure, a rear axle structure and a rearbumper. The two longitudinal beams are oppositely arranged in the left-right direction of a vehicle body and comprise the left longitudinal beam and the right longitudinal beam; each longitudinal beamis a box beam formed by tailor-welding two first channel beams along the left-right direction of the vehicle body; an engine mounting hole, a transmission mounting hole and a suspension mounting holeare formed in each longitudinal beam; each longitudinal beam comprises a vehicle front section, a vehicle middle section and a vehicle rear section which are integrally formed; each vehicle front section and each vehicle rear section are higher than the corresponding vehicle middle section, so that the longitudinal beams are arranged in the front-back direction of the vehicle body with two high ends and a low middle. According to the invention, the distance between the vehicle body front suspension and the vehicle body rear suspension can be adjusted to meet the requirements of vehicle bodieswith different lengths; and the distance among the front axle structure, the middle axle structure and the rear axle structure can be adjusted to adapt to different chassis arrangements and the performance requirements of the whole vehicle.

Description

technical field [0001] The invention belongs to the technical field of off-road vehicle frame structures, and more particularly relates to a multi-axis off-road vehicle frame structure with variable wheelbase. Background technique [0002] Off-road vehicles usually adopt a non-load-bearing structure, and the body, engine, transmission, front and rear axles, suspension and other assemblies and components are fixed on the frame to keep them in the correct relative position, and at the same time meet the general layout of the vehicle and the load-carrying capacity of the vehicle. , man-machine layout and other requirements. The frame is a bridge structure that spans the chassis of the off-road vehicle, and is the foundation and skeleton of the entire off-road vehicle. The choice of the frame structure scheme is related to the performance of all aspects of the off-road vehicle. The road conditions of off-road vehicles are relatively harsh (need to drive on graded roads, rural ...

AI Technical Summary

Problems solved by technology

However, the existing various frame structures are complex in structure, lack of platform, generalization, and serialization design of vehicle models, the suspension of the body and the fixed position of the suspension cannot be adjusted, the installation and disassembly of various parts are inconvenient, and the manufacturing process of the whole set of frame is complicated. , high cost and many other shortcomings

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