基于三维虚拟仿真的旋耕机优化设计  

Optimal Design of Rotary Tiller Based on 3D Virtual Simulation

作　　者：王颖睿 Wang Yingrui(Nanjing Railway Vocational and Technical College,Nanjing 210031,China)

机构地区：[1]南京铁道职业技术学院,南京210031

出　　处：《农机化研究》2023年第6期252-255,259,共5页Journal of Agricultural Mechanization Research

基　　金：江苏省高校哲学社会科学研究项目(2019SJA0655);江苏省“青蓝工程”优秀教学团队研究成果(RCQL19214);江苏省“青蓝工程”优秀青年骨干教师培养计划项目(RCQL20205)。

摘　　要：以旋耕机作业过程为研究对象,对旋耕机刀具结构和工作原理进行分析,并使用Catia三维结构设计软件进行旋耕机刀具参数化结构设计,分析计算出旋耕机刀具使用过程中的最大载荷为522N。通过Catia中静力分析模块对旋耕机刀具进行应力仿真分析,获取旋耕机刀具使用过程中的应力分布云图和变形量分布云图,结果表明:最大变形位置对应旋耕机刀具的刀尖处,最大应力位置对应刀具安装孔处。以旋耕机刀具折弯角和刀具正切面刀高为优化参数,以应力值、变形量及刀具体积为优化目标,对不同参数组合进行优化,结果表明:当正切面刀高为45mm、刀具折弯角为125°时,刀具结构参数达到最优。This paper takes the operation process of rotary tiller as the research object,analyzes the structure and working principle of rotary tiller cutter,and uses CATIA three-dimensional structure design software to carry out parametric structure design of rotary tiller cutter,analyzes and calculates the maximum load of rotary tiller cutter in the process of using 522n,and carries out stress simulation analysis on rotary tiller cutter through CATIA static analysis module,so as to obtain the rotary tiller parameters The results show that the maximum deformation position corresponds to the tip of the rotary cultivator tool,and the maximum stress position corresponds to the tool installation hole.Taking the cutter bending angle and the cutter height on the tangent plane of the rotary tiller as the optimization parameters,and taking the stress value,deformation and cutter volume as the optimization objectives,the different parameter combinations were optimized.The data show that when the cutter height on the tangent plane is 45mm and the cutter bending angle is 125°,the cutter structure parameters are optimized.

关 键 词：旋耕机 旋耕刀具 三维虚拟仿真 结构优化 

分 类 号：S222.3[农业科学—农业机械化工程]