Simulation Analysis and Experimental Study on Strength of Castor Cutting Cutter

摘要

Castor oil is an important oil crop. In this paper, the parameter setting of the castor harvesting device cutter head is tested and analyzed. The stress changes of the castor stalks and the cutter head during the cutting process were studied by the simulation experiment. To determine the best working parameters of the knife dish experiment material model for mechanical properties, the shear test of castor stem is done. To determine the castor stem shear modulus and Poisson's ratio, and through the test to determine the castor stem density, castor stem material based on this model is established. In the simulation cutting, on the one hand, cut back and forth on the other hand to establish a three-dimensional model of the blade, the blade parameters of the cut back and forth (blade Angle Cutting speed) for castor stem cutting effect are got. The results of two kinds of cutting way two-factor variance analysis and judgment for cutting the significant influence of various factors are got. By comparing the two types of cutting performance, the best parameters for cutting are accomplished. Finally, the knife dish at work cutting effect is the best parameter selection. The study complete castor harvest machinery for the future provide theoretical basis.