玉米精密排种器性能对比试验  

Comparative Experiment on Corn Spacing Seed Feeder

作　　者：刘立晶[1,2] 刘忠军[3] 李长荣 周军平 

机构地区：[1]中国农业机械化科学研究院,北京100083 [2]现代农装科技股份有限公司,北京100083 [3]土壤植物机器系统技术国家重点实验室,北京100083

出　　处：《农机化研究》2011年第4期155-157,194,共4页Journal of Agricultural Mechanization Research

基　　金：国家科技支撑计划项目(2007BAD89B04);国家科技支撑计划项目(2009BADB5B03)

摘　　要：气吸式、指夹式和倾斜勺式3种玉米精密排种器具有不同性能和最佳工作速度。通过在台架上进行性能对比试验,分析了在不同速度下各类型排种器粒距合格指数、重播指数、漏播指数及合格粒距变异系数的变化趋势,得出不同排种器的最佳工作速度。试验结果表明:随着工作速度的增加,各类型排种器性能均下降,且最佳工作速度不同。其中,倾斜勺式的最佳工作速度为10 km/h,气吸式和指夹式的均为6 km/h左右。Three kinds of corn spacing seed feeder i. e. suction feed, finger pickup feed and inclined spoon feed had different performance and the best working speed. Variation trend of the four performance parameters that percent of qualification seed spacing, percent of multiples, percent of miss and variance of qualification seed spacing, were analyzed under different working speed. And the best working speed is educed through rig test. The testing results indicated that all the three feed performance declined along with working speed increase. The best working speed of inclined spoon feed, suction feed and finger pickup feed were 10km/h, 6km/h and 6km/h respectively.

关 键 词：玉米 精密排种器 性能对比 

分 类 号：S223.2[农业科学—农业机械化工程]