摘要
采用重力压板式棉花精量穴播器的结构和原理,运用Pro/E虚拟设计方法对该穴播器核心工作部件重力压板式取种器进行了三维数字化建模与动力学仿真,依据仿真分析结果,进一步优化了取种器重力压板的结构参数,较好地满足了该穴播器高速精量排种的技术要求。物理样机的台架试验表明:工作速度<1.2m/s时,穴播器单粒率>93%,达到棉花精量穴播的技术要求;当工作速度>1.4m/s时,穴播器多粒率增幅较大,排种性能明显下降。试验结果与运用Pro/E的优化设计结论基本一致。
This paper outlines the basic principle of gravity-plate cotton precision dibbler.Using Pro/E virtual technique,the courses of three-dimensional modeling and dynamic simulation for gravity-plate cotton precision dibbler were developed;after analysing dynamic simulation and optimization design,we found that this dibbler could work according to technical requirements of precision seeding.Bench tests for physical prototype were carried out.The results indicate:when working velocity is less than 1.2m/s,the sing...
出处
《石河子大学学报（自然科学版）》
CAS
2007年第5期623-626,共4页
Journal of Shihezi University(Natural Science)
基金
国家自然科学基金项目(507765006)
关键词
PRO/E
穴播器
三维建模
运动仿真
优化设计
Pro/E
precision dibbler
three-dimensional modeling
dynamic simulation
optimization design
