Finite Element Rotary Tillers Blade Performance Study And Prototype Testing

Tiller because of its simple structure, mobility, ease of operation, is widely used in the mountains, hills and greenhouses and orchards areas of China[1-2]. Tiller Blade divided into three categories according to the shape: chisel blade, curved blade at right angles to the blade and three blade has a corresponding farming advantages, respectively, for different soil conditions for farming. But in our country is the widespread use of curved blade, in the process of good farming pulverizer effect, not easily entangles grass, all kinds of complicated conditions of farming can achieve more satisfactory results. Because the blade is tillers farming working parts, severe wear in actual use, expand on research blade rotary tillers, rotary tillers to reduce power consumption and improve the quality and blade life pulverizer will have a positive meaning.In this paper, the widespread use of domestic machetes sheet as the main object of study, blade made of three-dimensional modeling, data port pass through modeling, finite element analysis using ANSYS stress analysis software blade research. The main contents of this paper in the following areas:1) the use of Pro / E software for three-dimensional modeling and simulation blade and IGS format into ANSYS software, the blades and blade mesh finite element analysis;2) complete the machete piece Tiller main working parts design and prototype trial.3) over the experimental simulation and prototype experiment, computer simulation results are given final load is applied based on the actual model and the given parameters. At the same external force, Tiller Blade different bend angles equivalent plastic strain different results, performance with increasing bending angle, blade plastic strain is more concentrated, while gradually increasing strain. When the load increases, the blade edge plastic strain gradually to the hilt by the performance of the site development, and with the increasing load, equivalent plastic strain is also increasing gradually expanded the scope.