窝眼轮式三七排种器精密排种力学模型研究  

The Study of Precision Seeding Mechanical Model forthe Cell Wheel Sanchi Seed- Metering Device

作　　者：李欢[1] 袁权[2] 张霞[1] 杨文彩[1] 唐秀英[1] 陈世闯 

机构地区：[1]云南农业大学机电工程学院,昆明650201 [2]西华大学建筑与土木工程学院,成都610039

出　　处：《农机化研究》2015年第9期22-26,共5页Journal of Agricultural Mechanization Research

基　　金：云南省教育厅科学研究基金项目(2013Y470)

摘　　要：排种器是实现精密播种技术的核心部件,其工作性能的好坏直接影响着播种精度、均匀性及种子的出苗率等。为此,对前期设计的窝眼轮式三七排种器进行受力和运动分析,按单刚度系统对三七种子在充种阶段、携种阶段、投种阶段建立动力学模型,根据力与运动的关系推导出排种管参数之间的关系,合理设置排种管参数,以获得较好的播种效果,提高生产效率。Metering device is the key component to realize precision seeding technology , its performance directly affects the seeding accuracy , uniformity , seed germination rate .Stress field and motion for the preliminary designed cell wheel san chi seed-metering device were analyzed in the thesis .According to single stiffness system , the dynamic models of Sanchi seed in the seed filling stage、seed carrying stage and seed falling stage were established .According to the relation-ship between force and motion , the relationship of seed tube parameters was deduced , seed tube parameters should be reasonably set in order to obtain better seeding result , save labor and improve production efficiency .

关 键 词：排种器 动力学模型 受力分析 运动分析 

分 类 号：S220.3[农业科学—农业机械化工程] TH12[农业科学—农业工程]