微型水稻联合收割机新型圆筒筛设计研究  

Research on the Design of New Type Rotary Sieve for Miniature Rice Combine Harvester

作　　者：尹健[1] 黄年月 吴兵[1] 姚丽华[1] 戴明[1] 

机构地区：[1]贵州大学机械工程学院,贵州贵阳550003 [2]贵州云马飞机制造厂,贵州安顺561019

出　　处：《现代机械》2011年第3期62-64,72,共4页Modern Machinery

基　　金：贵州省科技厅农业攻关项目(黔科合NY字[2009]3048)

摘　　要：针对现有圆筒筛设计的不足,设计了一种适合微型水稻联合收割机的新型圆筒筛,介绍了结构及主要设计参数的计算。该圆筒筛由内筛筒和外圆筒组成,通过径向辐条联接,使用一个传动链即可实现谷物与短茎杆的分离;设在内筛筒和外圆筒的螺旋叶片使谷物和短茎杆实现了定向流动且结构十分紧凑;基于重力作用的清筛装置解决了使用外圆筒而无法安装清筛装置的问题。由滑动条件导出了实现筛选的最小最大转速。In the paper, a new type rotary, sieve for miniature rice combine harvester is designed with respect to the shortages of the presently used rotary sieve, and the relative structure and design parameters are introduced. The rotary sieve is composed of the inner sieve reel and outer circular reel which are connected by radial spokes. The corn and short stem can be separated by one drive chain. The helical leaf blades on the surface of the reels make the structure compact and directional flow of corn and short stem possible. The sieve cleaning device based on gravitational effect solves the problem of installation. The minimum and maximum turning speed are derived by sliding condition.

关 键 词：联合收割机 圆筒筛 定向流动 重力式 清筛装置 

分 类 号：S233.4[农业科学—农业机械化工程]