油菜播种机槽孔轮式精量排种器设计与试验  

Design and Experiment of Precision Metering Device for Slot Wheeled Seeder

作　　者：廖庆喜[1] 黄吉星[1] 刘光[1] 林来福[1] 

机构地区：[1]华中农业大学工学院,武汉430070

出　　处：《农业机械学报》2011年第2期63-66,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(50875104);"十一五"国家科技支撑计划资助项目(2006BA021B03);教育部新世纪优秀人才支持计划资助项目(NCET-07-0344);国家油菜产业技术体系专项资助项目(nycytx-00520)

摘　　要：设计了一种适用于油菜精量排种的槽孔轮式排种器,分析了该排种器的结构特征及其工作原理,提出了清种轮轴实现清种、护种带护种和钢丝推种的排种机构,确定了该排种器的主要结构和性能参数。试验表明,在清种轮轴转速为104 r/min、型孔直径2.8 mm、推种钢丝倾角33°时,破碎率最低为0.73%。A slot wheeled precision metering device for rapeseeds was designed.The structure and working principle were studied.The metering mechanism mainly consisted of a seed-cleaning wheel axle,a seed-retaining belt and a weed-pushing ringed wire-steel.By experiments,the key structure and performance parameters were analyzed and determined,the lowest seed damage index was obtained when the speed of seed-cleaning wheel axle was 104 r/min,the diameter of shaped hole was 2.8 mm and the inclined angle of wire steel was 33°.

关 键 词：油菜籽 槽孔轮式 精量排种器 

分 类 号：S223.25[农业科学—农业机械化工程]