基于Pro/E的铲式成穴器几何建模和运动仿真  

Modelling and kinematic Simulating for spade punch opener based on Pro/E

作　　者：何波[1] 李成华[2] 

机构地区：[1]沈阳航空工业学院机械与汽车学院,沈阳110034 [2]沈阳农业大学,沈阳110161

出　　处：《机械设计与制造》2006年第6期48-49,共2页Machinery Design & Manufacture

基　　金：教育部博士点专项基金资助项目(1999003001)

摘　　要：在对铲式玉米精密播种机成穴器的结构和特点进行分析的基础上,利用Pro/E对铲式成穴器的运动进行了仿真分析。分析结果表明:打穴铲在运动过程中做空间螺旋摆线运动,在打穴铲进入土壤过程中,铲的外侧面向侧向挤压土壤并进入土壤中,保证了打穴铲内侧面铲端处的开口不与所形成穴孔的土壤侧壁相接触,并且它们间的间隙随着打穴铲入土深度的增加而增大。从而避免了成穴部件被土壤堵塞的问题,为铲式成穴器的设计提供了理论依据。Based on structure and characteristic analysis of spade punch opener used on precision planter for maize, its kinematic simulation has been conducted with Pro/E. The results show that the shape of spade moving track is dimensional spiry cycloid, so the outer side pushes the soil and the hatch on the inner side of spade soil opener has no contact with the soil during the hole -forming process, which ensures that there is no jam in the throwing opening. And with th increasing of spade entering depth, the gap between spade inner side and outer soil is augmented gradually. Therefore, a theoritical basis is provided for the design of the spade punch opener for precision planter.

关 键 词：铲式成穴器 玉米 PRO/E 几何建模 运动仿真 

分 类 号：S126[农业科学—农业基础科学]