The Study Of Wheat No-till Planter

This paper study the characteristics of conservation tillage machine at home and abroad and no-till planter to collect, for, big foreign no-till planter type, machine cost is high, the proposed design is suitable for small plots, tractor the situation of low power and low farmers’purchasing power, the necessity of wheat no-till planter.Because the previous green corn crop straw has good toughness, increased the difficulty of the cutting. Therefore, the analysis of the biomechanical characteristics of the maize straw, on the basis of proposed USES power driven type crushing straw spacing cultivation ways of planting. The seeding method avoids the corn taproot interference, the cutting tool will be shattered, corn straw break not only cut the stubble cutting tool in theory is not the grave so machine low consumption; In the row planting wheat, corn residues in front of opener have been cleaned straight knife, has held in good performance.This machine key components is crushing cutters and opener. Cutting tool is designed on the analysis of the force of the blade and the deflection of the cutter shaft, on the basis of design a straight blade and curved knife blade shape and double helix blade discharge position, make the crushing blade .has a certain safety and economy. In order to get out of the way channel has a strong ability of trenching ground, ensure the quality of the good kind of groove on the analysis of the force of the opener and the open ditch process after the no-till planter adopts sharp-angled opener, can by adjusting nut to adjust the spacing of the pipe and tube fat, realize the seed manure with shi, fertilizer deep soil. Because maize straw cutting belong to no support in the design of this type, need pieces knife with high cutting speed,45 kw of tractor and machine is adopted. According to the transmission input speed and the best cutting speed and tool design the secondary drive system, namely the power through the transmission is passed to the belt drive, then on to knife shaft by the belt.Field experiments showed that the dynamic type of rows no-till planting soil disturbance, less kinds of bed are of good quality and has the characteristics of water soil conservaton neat emergence rate; Can be realized in the corn straw into a state of vertical planting, fertilizer, cover earth, rolling and so on a series of work, which can realize the larger fertilizer rate, improve the fertilizer utilization ratio and reduce the number of machine down, ensure that the structure of the soil, reduce the cost of agriculture, significantly shortened the season.