小区播种机充种装置工作性能试验  

Test on performance of seed-filling device of plot seeder

作　　者：刘曙光[1,2] 尚书旗[1] 杨然兵[1] 郑月男[1] 王延耀[1] 赵大军[1] 赵建亮[1] 

机构地区：[1]青岛农业大学机电工程学院,山东青岛266109 [2]中国农业大学(烟台)理工学院,山东烟台264670

出　　处：《中国农业大学学报》2011年第3期156-163,共8页Journal of China Agricultural University

基　　金：国家"948"项目(2009-Z22)

摘　　要：为提高小区播种作业各排种环节的排种性能,以小区播种机充种装置为研究对象,采用通用旋转组合试验设计方案,研究小区播种机前进速度v、充种装置转动速度ω、充种装置锥体母线长度l和充种装置锥体底角角度α,对油菜和小麦种子充种均匀性变异系数的影响。通过DPS 7.05数据处理系统获得了4个试验因素对油菜、小麦种子充种均匀性变异系数的影响回归方程,确定了各因素的影响顺序:1)油菜种子,充种装置锥体母线长度>充种装置锥体底角角度>小区播种机前进速度>充种装置转动速度;2)小麦种子,充种装置锥体底角角度>充种装置锥体母线长度>充种装置转动速度>小区播种机前进速度。确定了针对油菜、小麦种子的充种装置结构及工作环境的最佳参数,即小区播种机前进速度0.4 m/s、充种装置转动速度0.25 rad/s、充种装置锥体母线长度0.1 m、充种装置锥体底角角度50°;在最佳参数条件下,油菜和小麦种子播量分别为5和180 g时,充种装置最适合育种试验的长度为10 m,充种均匀性变异系数分别为5.68%和7.85%。In order to improve the performance of metering parts,a seed-filling device of plot seeder was studied in the paper.The influence of four test factors（motion velocity of plot seeder（v）,rotation speed of seed-filling device（ω）,generatrix length of seed-filling device（l） and base angle of seed-filling device（α）） on CV of the uniformity in seeding-filling process for rape seed and wheat seed were analyzed by the quadratic general rotational combination design.With DPS 7.05 Data Processing System the regression equations of the uniformity in seed-filling process on the four test factors were established.The effect order of four test factors obtained by the regression equations is generatrix length of seed-filling devicebase angle of seed-filling devicemotion velocity of plot seederrotation speed of seed-filling device for rape seed and base angle of seed-filling devicegeneratrix length of seed-filling devicerotation speed of seed-filling devicemotion velocity of plot seeder for wheat seed.The optimum parameters about structure and operational environment for rape seed and wheat seed established by analysis are as follows：motion velocity 0.4 m/s,rotation speed of filling device 0.25 rad/s,generatrix length of seed-filling device 0.1 m and base angle of seed-filling device 50°.From the result the best plot length for the seed-filling device is 10 m and the best CVs in seed-filling process for rape seed and wheat seed are 5.68% and 7.85%,respectively,when seeding rate for rape seed and wheat seed are 5 and 180 g/plot.

关 键 词：小区播种机 充种均匀性 育种机械 性能试验 

分 类 号：S223.2[农业科学—农业机械化工程]