Rear wheel axle structure and mounting method

Abstract

The invention discloses a rear wheel axle structure and a mounting method. The rear wheel axle structure comprises a rear wheel axle, a rear rocker arm, a chain wheel seat combination, a rear rim combination, a rear wheel right bushing, a caliper bracket, a right adjusting block and an axle fastening nut which are assembled in sequence; and the rear wheel axle structure further comprises a fastener for limiting the rear rim combination front and back; and the rear wheel axle is of an integrally-formed pipe structure, and a left adjusting block is fixed to the left end of the rear wheel axle. As the rear wheel axle is of an integrally-formed pipe structure, the manufacturing process is simple, and the straightness of a finished product is good; and compared with a traditional solid shaft, the rear wheel axle has the advantages that a tubular shaft with a larger diameter can be adopted under the same mass, and the bearing strength is better. Therefore, according to the rear wheel axle structure, the rear wheel axle is improved, the technological manufacturing process is simplified, and the problems in the field at the present stage are solved.

Description

technical field [0001] The invention relates to the technical field of motorcycle parts, and more specifically relates to a rear axle structure and an installation method. Background technique [0002] In recent years, with the continuous development of large-displacement motorcycles, the selection of motorcycle axles is increasingly inclined to the choice of large diameter and light weight, and at the same time, the feasibility of the production process needs to be considered. [0003] As far as the existing technology is concerned, the traditional rear axle adopts the method of upsetting the bolt head with a solid shaft and a head, that is, the hexagonal head axle, and the axial limit of the hexagonal head axle is realized by pressing the adjustment block; and the adjustment block Symmetrical design, only suitable for a single model. [0004] The hexagonal head axle needs to be finely machined. It is not easy to guarantee the verticality of the processing surface and the ...

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Problems solved by technology

[0003] As far as the existing technology is concerned, the traditional rear axle adopts the method of upsetting the bolt head with a solid shaft and a head, that is, the hexagonal head axle, and the axial limit of the hexagonal head axle is realized by pressing the adjustment block; and the adjustment block Symmetrical design, only suitable for a single model

[0004] The hexagonal head axle needs to be finely machined. It is not easy to guarantee the verticality of the processing surface and the axis of the long axis, and the process is complicated; and the adjustment block and the wheel axle are clearance fit, and the adjustment block and the rear rocker chute are also clearance fit. For the hexagon head axle The diameter and straightness machining accuracy put forward high requirements

When changing the number of teeth of the sprocket (number of teeth T±2) to adjust the power performance, it will cause the increase and decrease of the center distance (according to the current 520 525 specification chain) ± 8mm, which has a great impact

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