Design and Experiment of Tapered Passive Shallow Tillage Device

Wen Xiangyu;Zhou Fujun;Li Xiaoli;College of Engineering,Northeast Agricultural University;Ordinary University North Cold Region Agriculture Equipment Key Laboratory in Heilongjiang Province;

College of Engineering,Northeast Agricultural University%Ordinary University North Cold Region Agriculture Equipment Key Laboratory in Heilongjiang Province

ridge tillage crops;;cultivating work;;surface tillage;;conical drum

A kind of tapered passive rotary hoe-tooth shallow loose device was designed and studied for the shallow operation of the soil near the crop root system after tillage and no tillage. When the operation,the outer hoe-shaped conical roller is applied to the ridge side,and the structural characteristics of the conical drum are used to enhance the slippage of the hoe teeth during the soil operation,so as to reduce the soil disturbance and tillage resistance,reduce the power consumption and Enhance the effect of the purpose of the operation. In this paper,the structure and parameters of the tapered drum are studied. Orthogonal test is used to measure the velocity,spring pressure and hoe-tooth spacing as the factors. Based on the soil robustness and soil depth stability,the experiment data processing and analysis were carried out by using the Design-expert software platform. The results show that the soil robustness difference is 29. 8 N/cm2,the soil depth stability is 93%,and the parameter optimization result can be satisfied when the advance speed of the soil test vehicle is 1. 0 m/s,spring pressure 920 N and hoe tooth pitch 42 mm Performance requirements for shallow tillage of crop.