基于三平移并联机构的茶叶筛分试验  

Tea Sieving Based on Three Translation Parallel Mechanism

作　　者：谢俊[1] 张晓庆[1] 王成军[2] 

机构地区：[1]江苏大学机械工程学院,镇江212003 [2]安徽理工大学机械工程学院,淮南232001

出　　处：《农业机械学报》2012年第10期101-104,共4页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家自然科学基金资助项目(50905077);高等学校博士学科点专项科研基金资助项目(2009327120007);江苏省博士后基金资助项目(0901010B);江苏大学高级人才启动基金资助项目(05JDG015)

摘　　要：为解决传统茶叶筛分机械不能实现多维振动的问题,基于并联机构组成原理,选择了一种满足茶叶清选需要的全解耦三平移并联机构为茶叶筛分机的主体机构。应用D-H矩阵计算出该并联机构运动学正、反解,并且通过正交试验验证了其筛分性能。结果表明,三自由度振动提高了茶叶在筛面上的分散度,最短透筛时间为单自由振动最短透筛时间的1/20,筛分性能较单自由度振动有大幅度提高。Based on the theory of parallel mechanism,a 3-DOF mechanism which was completely decoupled was chosen as the main part of the tea sieving machine to solve the problem that the traditional tea sieving machines can not complete multi-dimensional vibration.D-H matrix was applied to calculate the forward and reverse solution of the position,and the orthogonal experiment was used to test the screening performance.The test shows that the 3-D vibration makes the tea spread fast in the screen surface,short the time by nearly 20 times and get a better screening performance.

关 键 词：并联机构 茶叶筛分机 正交试验 

分 类 号：TQ028.91[化学工程] S226.5[农业科学—农业机械化工程]