油菜脱出物振动筛分运动分析及试验研究  

Motion analysis and experimental research of rape extractions on vibration sieve

作　　者：李耀明[1] 王智华[1] 徐立章[1] 杨秀景[1] 

机构地区：[1]江苏大学农业工程研究院江苏省现代农业装备与技术重点实验室,镇江212013

出　　处：《农业工程学报》2007年第9期111-114,共4页Transactions of the Chinese Society of Agricultural Engineering

基　　金：江苏省自然科学基金资助项目(BK2004060);江苏省农业科技攻关项目(BE2005302)

摘　　要：通过分析振动筛抛射强度对筛面物料运动状态的影响,以颗粒的碰撞理论为基础,建立单个物料颗粒在筛面上的运动模型,并通过运动稳定性分析,得到不同抛射强度下物料颗粒的运动规律。通过试验得出对应抛射强度下的清选损失率。根据振动筛主要工作参数对筛面抛射强度的影响,为油菜联合收割机清选装置振动筛运动参数的合理选取提供参考依据。By analyzing the motion state of rape extractions on vibration sieve in different ejection intensities and based on the collision theory a motion mathematical model of a rapeseed on the vibration sieve was established. By analyzing the major factors affecting the motion state and motion stability of rapeseed the motion regularity of rapeseed with different ejection intensities was found. Experiments were conducted on experimental platform to find out the influence on the cleaning loss ratio which caused by the changing ejection intensity. The influence on the ejection intensity which caused by the motion parameters was analyzed. These results provide reference basis for selecting the motion parameters of vibration sieve on cleaning device.

关 键 词：油菜 振动筛分 抛射强度 碰撞 清选 

分 类 号：S225.3[农业科学—农业机械化工程]