Motorcycle gear shift transmission mechanism

Abstract

The invention relates to a transmission mechanism and discloses a motorcycle gear shift transmission mechanism which comprises a main shaft and an auxiliary shaft. The main shaft is sequentially provided with a first-gear main gear, a fifth-gear main gear, a third / fourth-gear main gear and a second-gear main gear. The auxiliary shaft is sequentially provided with a first-gear auxiliary gear, a fifth-gear auxiliary gear, a fourth-gear auxiliary gear, a third-gear auxiliary gear combination sleeve and a second-gear auxiliary gear. The first-gear main gear is meshed with the first-gear auxiliary gear, the fifth-gear main gear is meshed with the fifth-gear auxiliary gear, the third / fourth-gear main gear is meshed with the fourth-hear auxiliary gear and the third-gear auxiliary gear, and the second-gear main gear is meshed with the second-gear auxiliary gear. The motorcycle gear shift transmission mechanism is simple in structure and convenient to shift gears, and the problems that an existing structure is complex in structure, and gear shifting is inconvenient to conduct.

Description

technical field [0001] The invention relates to a gear shift transmission mechanism of a motorcycle. Background technique [0002] The engine is the power device of automobiles, motorcycles, tillers, etc. The fuel (gasoline, diesel, etc.) converts heat energy into mechanical kinetic energy through combustion in the combustion chamber of the engine. The shaft transmits the torque to drive cars, motorcycles, and tillers to walk. In the transmission device, the speed and direction of rotation (forward and reverse) of the output power are changed through the meshing of gears in different gears on the main shaft, counter shaft and reverse gear shaft. Due to the needs of power transmission and space structure layout of motorcycles, in the gearbox or the upper box of the gearbox, there are gear gears on the main shaft and the main shaft, gear gears on the counter shaft and the counter shaft, and reverse gears. The shaft and reverse gear, etc., under the action of the shift fork, ...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, most of the transmission devices for gear shifting that meet the needs of motorcycle power transmission have relatively complicated structures, many gears, and it is troublesome to install and adjust the positions between the gears, and it is difficult to adjust to the required installation accuracy. ; In the gearbox in the prior art, its shift fork is usually arranged on the main shaft, which pushes the gear gear on the main shaft to move axially to mesh with the mating gear of the countershaft to achieve different transmission speeds; but this kind of gear shifting The structure in which the shift fork is set on the main shaft, the shift fork controls the combination sleeve, and a combination sleeve can only be combined with one gear, and there are many combination sleeves and gears, the shifting is not smooth, the whole structure is also complicated, and the operation is not flexible , does not meet the needs of motorcycle gear shifting transmission; moreover, it is necessary to set a reverse gear fork to move the reverse gear to mesh, and it must be equipped with reverse gear cables, reverse gear push plates and other components, which is more complicated in structure

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