研究了物块在回转筛转筒内的运动状态.用力学分析法结合实验观察

确定物块三种运动状态

给出了最佳状态下物块在转筒中合理的初始减速位置角和不同物块在最佳工作状态下所需临界转速.为提高物块成品质量

使转筒的平均转速n关键词：运动分析;临界转速;减速位置角;Abstract：The motion state of the object in the rolling tube-shaped container is studied. By the mechanical analysing method combined with the experimental observation

we can ascertain the object′s three kinds of motion states and the reasonable declaration position angle of it in the container. Thus

the readers can calculate rapidly different objects′ critical rolling speed under the best condition. In order to improve the object′s quality

we ought to keep the average rolling speed %nKeyWords：kinemetic analysis;critical rolling speed;declaration position angle.;