Rear axle housing body of beach vehicle

Abstract

The invention discloses a beach buggy rear axle shell. A rear wheel axle crossing hole (2) passing through the left end face and the right end face of a rear axle shell is arranged on the rear axle shell (1); two ends of the rear wheel axle crossing hole (2) are provided with bearing holes (3); a center line of the bearing holes (3) coincides with that of the rear wheel axle crossing hole (2); the center line of the rear wheel axle crossing hole (2) deviates from an axial lead of the rear axle shell (1) and is parallel to the axial lead of the rear axle shell (1). The shell can guarantee the parallel movement of a rear wheel axle relative to an engine output shaft when the tension degree of chains is regulated, keep a front chain and a rear chain in alignment all the time, avoid the occurrence of chain gear jamming, tension fracture and other phenomena, effectively guarantee the performance of a whole chain transmission mechanism, and greatly prolong the life-span of the chain transmission mechanism.

Description

technical field [0001] The invention belongs to the technical field of all-terrain vehicles, and in particular relates to a rear axle housing of an beach vehicle. Background technique [0002] At present, most of the rear axle housings of ATVs with chain drive models adopt inner and outer concentric circle structures. That is, the rear axle housing is provided with a rear wheel shaft through hole passing through its left and right end surfaces, and the two ends of the rear wheel shaft through hole are bearing holes, and the center line of the bearing hole is connected with the center line of the rear wheel shaft through hole and the center line of the rear axle housing. The three axis lines coincide. Bearings are installed in the bearing holes at both ends of the rear axle housing, and the rear axle housing is supported on the rear wheel shaft through the bearings. There are also connecting plates welded on the outer walls of the two ends of the rear axle housing, and two ...

AI Technical Summary

Problems solved by technology

[0003] 1. The rear axle shell is made of seamless steel pipe, and is installed on the flat fork through the connecting plates welded at both ends. The weight of the rear axle shell is heavy, and the strength cannot meet the requirements for off-road vehicles.

[0004] 2. When adjusting the chain tension, the mounting bolts at both ends of the rear axle housing must be adjusted to move forward or backward in the strip holes on the mounting base plate, but it is difficult to keep the strokes of the left and right mounting bolts consistent, that is, when adjusting The parallel movement of the rear wheel shaft relative to the engine output shaft cannot be guaranteed, so that the front and rear chains are not aligned, which may easily cause the chain to jam, or even break the chain, affecting the performance and service life of the entire chain transmission mechanism

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