Postposition three-level gearbox assembly

Abstract

The invention provides a postposition three-level gearbox assembly which comprises an input shaft, an apical teeth shaft and an intermediate shaft, wherein the input shaft and the apical teeth shaft are located on the same center line, the center line of the intermediate shaft is parallel to the center line of the input shaft, a first driving tooth and a second driving tooth are sequentially arranged on the input shaft, and a driven tooth is fixedly sleeved at one end of the apical teeth shaft, close to the input shaft; a middle-low gear transition tooth and a middle-gear intermediate tooth are fixedly sleeved on the intermediate shaft, a low-gear intermediate tooth is idly sleeved on the intermediate shaft, and the middle-low gear transition tooth, the middle-gear intermediate tooth and the low-gear intermediate tooth are respectively meshed with the driven tooth, the first driving tooth and the second driving tooth; the input shaft is in key connection with a middle-high gear clutch located between the driven tooth and the second driving tooth, a middle-high gear shifting fork is arranged on the middle-high gear clutch, the intermediate shaft is in key connection with a low-gear clutch, and a low-gear shifting fork is arranged on the low-gear clutch. According to the invention, through three-level speed change, the effects of running with heavy load and running fast with light load can be achieved.

Description

technical field [0001] The invention belongs to the field of transmissions, in particular to a rear-mounted three-stage transmission. Background technique [0002] At present, the demand for the load capacity of tricycles has increased, and the load capacity of tricycles has increased from 0.5 tons to 2.5 tons. The increase in load requires not only an increase in engine power and output torque, but also an increase in the requirements for the variable speed and torque capacity of the transmission system. It is difficult for the transmission to meet the requirements of running fast under heavy loads and running fast under light loads without excessively increasing the engine displacement. Contents of the invention [0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a rear-mounted three-stage transmission, which is used to solve the problems that the tricycle transmission in the prior art is difficult to ...

AI Technical Summary

Problems solved by technology

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a rear-mounted three-stage transmission, which is used to solve the problems that the tricycle transmission in the prior art is difficult to meet the requirements of running fast under heavy load and running fast under light load.

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