Rotary tiller is a kind of tillage machine which is used with tractors to complete tillage and harrowing operations. It is widely used because of its strong soil breaking ability and flat surface after tillage; At the same time, the utility model can cut the stubble buried below the ground surface, which is convenient for the operation of the seeder and provides a good seed bed for later sowing.

According to the configuration mode of rotary blade shaft, it can be divided into horizontal shaft type, vertical shaft type and inclined type. The correct use and adjustment of rotary tiller is very important to maintain its good technical condition and ensure the quality of cultivation.

Rotary tiller can break the bottom of plough, restore the structure of soil plough layer, improve the ability of soil water storage and moisture conservation, eliminate some weeds, reduce pests and diseases, level the ground and improve the standard of agricultural mechanization. [1]