老鹳草种子处理机设计与试验研究  

Design and experiment on geranium seed processor

作　　者：赵永亮[1] 孙友谊[1] 李艳洁[2] 孙步功[1] 

机构地区：[1]甘肃农业大学工学院,甘肃兰州730070 [2]山东大学软件学院,山东济南250101

出　　处：《甘肃农业大学学报》2015年第4期152-155,共4页Journal of Gansu Agricultural University

基　　金：甘肃省自然科学基金(0805XCNA076)

摘　　要：以山东省特有植物青岛老鹳草种子为试验材料,针对老鹳草种子种皮外表有一层排列紧密的马氏细胞,具有不透水性和不吸水性,致使种子发芽率低或不发芽等问题,为提高老鹳草种子发芽率,设计一台小型硬实种子处理机.种子处理机利用种子与种子及动、静摩擦盘对种子双重摩擦的方法,破坏种皮外表层的马氏细胞,经摩擦后的种子获得较高发芽率.对处理机进行多次多因素试验,测得输料螺旋杆的转速、螺旋螺距和摩擦盘之间压力是影响种子破皮的关键因素,以上述因素为变量进行一次回归正交试验,结果表明:螺旋转速为500r/min,出料压力为4 000Pa,螺旋螺距为100mm对种子破皮效果最佳.试验研究对小型硬实种子处理机的设计具有指导意义.A layer of marten-site cell arranged closely in geranium seed skin, without permeability and absorbent, result in the low germination rate or not sprout. A small geranium seed processor was designed, the processor using friction between seeds or the dynamic and static friction plate to destroy marten-site cell which cover seed surface. After friction,a higher germination rate of seeds was achieved. After conduc- ting few of multi-factor tests,measured that the speed of the transporting screw n, screw pitch L, the pres- sure of the friction plate is the key factors of destroying seed skin. A regression orthogonal experiment was conducted by using the above factors as variables. The results show that when the screw rotation speed is 500 r/min, discharge pressure is 4 000 Pa, screw pitch is 100 ram, the effect of skin broken is the optimum. The design will help for small hard seed processor.

关 键 词：老鹳草种子 硬实处理 动摩擦盘 静摩擦盘 正交试验 

分 类 号：S220.2[农业科学—农业机械化工程]