Gear-shift mechanism in gearbox of high-horsepower agricultural machinery equipment

Abstract

The invention discloses a gear-shift mechanism in a gearbox of high-horsepower agricultural machinery equipment. The gear-shift mechanism comprises a duplicate gear, a free gear, a gear change shift fork, a first gear shaft and a second gear shaft, wherein a driven gear is in shaft connection to one end of the first gear shaft; the free gear is freely sleeved on the end part close to the driven gear; the duplicate gear is in spline connection with the first gear shaft; the second gear shaft is sequentially provided with a neutral position gear, a fast gear and a slow gear through a metal spline; and the free gear and the duplicate gear which are arranged on the first gear shaft are controlled by the gear change shift fork to be correspondingly meshed with the neutral position gear, the fast gear and the slow gear which are arranged on the second gear shaft. The gear-shift mechanism has a simple structure and small size; and by using the gear-shift mechanism, the driving performance can be effectively improved and the control to the rotating speed in each gear can be realized; the high-power output can be born; and the high-low frequency change of the load can be born and thus the burst of the gearbox can be prevented.

Description

[0001] technical field [0002] The invention relates to the technical field of agricultural machinery equipment, in particular to a technology of a gear shift mechanism in a transmission box of high-horsepower agricultural machinery equipment. Background technique [0003] In view of the high viscosity of paddy fields in southern my country, the original low-horsepower diesel engine found that the gears of the transmission box were worn too fast during the actual farming process, which affected the accuracy of farmland operations. Therefore, this kind of working environment requires a high-horsepower mechanical drive device. However, The transmission box of the existing high-horsepower mechanical drive device is prone to cylinder explosion when it is subjected to high and low frequently changing loads. Contents of the invention [0004] The purpose of the present invention is to provide a high-horsepower agricultural machinery equipment transmission with simple structu...

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Problems solved by technology

[0003] In view of the high viscosity of paddy fields in southern my country, the original low-horsepower diesel engine found that the gears of the transmission box were worn too fast during the actual farming process, which affected the accuracy of farmland operations. Therefore, this kind of working environment requires a high-horsepower mechanical drive device. However, The transmission box of the existing high-horsepower mechanical drive device is prone to cylinder explosion when it is subjected to high and low loads that frequently change

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