Mini-tiller gear shift speed change mechanism and mini-tiller thereof

Abstract

The invention discloses a mini-tiller gear shift speed change mechanism. The mini-tiller gear shift speed change mechanism comprises a box body, a spindle assembly, a gear shift speed change assembly and a reverse gear assembly. The gear shift speed change assembly comprises a countershaft, a synchronous double-gear, a countershaft gear shift gear, a gear shift double-gear, a countershaft gear ring and a worm rod, wherein the synchronous double-gear, the countershaft gear shift gear, the gear shift double-gear, the countershaft gear ring and the worm rod are sequentially sleeved outside of the countershaft. The gear shift speed change assembly further comprises a worm rod mesh gear for controlling the countershaft gear ring and the worm rod to mesh and separate, wherein the worm rod mesh gear is sleeved outside the worm rod and can move along a shaft of the worm rod. Through the mutual matching action of three gear shift devices which are the countershaft gear shift gear, the gear shift double-gear and the worm rod mesh gear, the walking speed change of the mini-tiller is achieved, gears are arranged more, the mini-tiller speed is more flexible to control, and under different environments, the selectivity is stronger. The invention further discloses a mini-tiller which uses the mini-tiller gear shift speed change mechanism. The mini-tiller has the advantages of being low in power loss, low in failure rate, strong in reliability, low in working noise and capable of working normally in various complicated working places and environments.

Description

technical field [0001] The invention relates to the field of micro tillage machines, in particular to a gear shift mechanism of the micro tillage machine and the micro tillage machine. Background technique [0002] As a small agricultural mechanical device, the tiller is playing an increasingly important role in plowing, plowing, pruning and weeding. However, in the prior art, the gear shifting mechanism of the micro tillage machine generally has complex structures, long power transmission routes that reduce the reliability of power transmission, inconvenient gear shifting operations, poor flexibility, and low stability. 1. Under the condition of poor lubricating conditions, it cannot run normally for a long time and cannot meet the needs of agricultural production. [0003] Therefore, it is necessary to improve the gear shifting mechanism of the tiller, so that it has simple structure, reliable power transmission, flexible and convenient gear shifting, more flexible speed ...

AI Technical Summary

Problems solved by technology

However, in the prior art, the gear shifting mechanism of the micro tillage machine generally has complex structures, long power transmission routes that reduce the reliability of power transmission, inconvenient gear shifting operations, poor flexibility, and low stability. 1. Under the condition of poor lubricating conditions, it cannot run normally for a long time and cannot meet the needs of agricultural production.

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