新型插秧机的三维虚拟仿真设计与试验

Test on 3D Virtual Simulation Design of the New Type Rice-seedling Transplanting Machine

为进一步提高我国新型插秧机的设计速度与实际插秧效率,针对其主要结构优化展开研究。基于插秧机的构造框架,融入工业三维设计仿真技术,搭建用于新型插秧机机构三维仿真设计的理论模型,经各组件关键参数设计阈值确定后形成合理的插秧机组件三维物理模型,利用虚拟仿真软件展开建模下的结构适用性分析,得到相应的仿真结果。同时,进行插秧机三维设计后的实地作业试验,结果表明:该三维虚拟仿真与联合作业试验之间获取的评价参数误差相差不大,验证了虚拟仿真的准确性,且虚拟仿真设计下的新型插秧机的结构紧凑性相对提升了6.65%,插秧的准确度相对提升了9.56%,综合插秧效率达94.85%。该设计思路充分利用了成熟的虚拟仿真技术,为插秧机具及类似农用机械的改良提供了很好的参考。

In order to further improve the design speed and actual transplanting efficiency of the new type rice-seedling transplanting machine in China,the optimization of its main structure and whole machine design was studied.Based on the structural framework of rice-seedling transplanting machine and the industrial 3D design simulation technology,a theoretical model for the 3D simulation design of the new rice-seedling transplanting machine mechanism was built.After determining the design threshold of key parameters of each component,the reasonable 3D physical model of rice-seedling transplanting machine component was formed.The structural applicability analysis under the modeling was carried out by using virtual simulation software,the corresponding simulation results were obtained,and the field experiment of combined transplanting was carried out.The results showed that the error of evaluation parameters between the 3D virtual simulation and the joint operation test was not much different,which verified the accuracy of the virtual simulation,and the structure compactness of the new rice-seedling transplanting machine under the virtual simulation design was relatively improved by 6.65%,and the accuracy of transplanting was relatively improved by 9.56%on the basis of meeting the requirements of relevant specifications of transplanting machine design,the comprehensive transplanting efficiency could achieve by 94.85%.The design idea made full use of the mature virtual simulation technology,and would provide good convenience for the improvement of transplanting machines and similar agricultural machinery,which would be worthy of popularization and application.