磁吸滚筒式精密排种器试验及参数优化

基于磁吸式排种原理，设计了一种新型滚筒式穴盘育苗精密排种器，分析了影响排种器工作性能的主要参数，利用均匀设计法进行了穴盘播种台架试验，通过对试验结果的回归分析和参数优化，得出了排种器的最佳工作参数组合。经对油菜种子穴盘播种试验，在滚筒转速、电磁线圈匝数和通电电流优化值下的单粒精播率为94.3%，漏播率为0，播种效率达330盘/h，满足了精密播种要求。

Experiment and parameter optimization of magnetic precision cylinder-seeder

According to magnetic precision seed-meter theory, a new type of magnetic cylinder-seeder was designed, the primary factors which influenced the performance of the seeder were analyzed, and the plug-seeding test by Uniform Design was conducted. Based on the experimental results, the regressive equations were established among the electric current value, coil turn, cylinder rotational speed and the percentage of single seed, and its primary working parameters were optimized. The experimental results for cole seed indicated that the single-seeding rate was 94.3%, leakage-seeding rate was 0, and the seeding efficiency can reach 333 sets per hour under the optimized working parameters, so the seed-metering device can satisfy the demand for precision seeding.