介绍了利用机械设计软件SolidWorks创建小型旋耕机旋耕刀的零件模型方法,并用有限元分析插件COSMOSWorks对其进行了静力分析,进而从理论上分析了旋耕刀正常工作状态下的应力、应变和变形等情况。分析结果表明,从刀具的强度角度考虑,旋耕刀与刀辊联接处是刀具的一个重要的结构设计要点,为刀具的结构设计提供了有价值的参考依据。 This paper introduced the method of creating the part model of rotary tillage rotary cutter with the mechanical design software SolidWorks, and carried out the static analysis with the finite element analysis plug-in COSMOSWorks, and then analyzed the stress, Strain and deformation and so on. The analysis results show that from the perspective of the strength of the tool, the joint of rotary cutter and knife roll is an important structural design point of the tool, which provides valuable reference for the structural design of the cutter.