农机化研究Issue(12)：173-178,6.
气吹供种的滚筒式排种器性能的试验研究
Experimental Study on Performance of Cylinder Seed-metering Device Based on the Pneumatic Suspension Seed Supply
摘要
Abstract
In view of this kind of small grain crop seeds , such as tomato , rape, flowers, the shape is not regular , the problem of poor liquidity is difficult to realize precision sowing , This paper presents a design scheme of air suspension based on the theory for the species , developed a kind of gas blowing for cylinder seed metering device .To improve the metering performance of this device , the orthogonal test was conducted with experimental object of tomato seeds , test fac-tors of a box of gas chamber pressure , cylinder diameter of suction hole , the roller speed .Extreme variance analysis of the test results using data processing software is to determine the effect of seeding performance index factors of excellent level , order and optimization combined , this machine will take the rational allocation of suitable structure parameters and performance parameters .Variance analysis of the experiment results indicates that the gas chamber pressure and drum di -ameter of suction hole are main factors and the optimization of three factors are the drum diameter of suction hole of 1.4mm,the positive pressure of air chamber of 2kPa and the cylinder rotation rate of 12r/min.Under such working con-ditions, the single seed index is 92.3%, leakage sowing index is 2.5%, so it proves that this machine has higher so-wing precision and the demand of the work efficiency and better adaptability to small seeds .关键词
排种器/滚筒式/气吹供种/性能试验Key words
seed-metering device/cylinder/pneumatic suspension seed supply/performance test分类
农业科技引用本文复制引用
马亚朋,马振,胡斌,姚强强,高捷,任萍..气吹供种的滚筒式排种器性能的试验研究[J].农机化研究,2016,(12):173-178,6.基金项目
国家自然科学基金项目 （）
