气吸式水稻穴播排种器设计与性能试验

Performance Test and Design of Rice Bunch Planting of Metering Performance of Air-suction Seed Metering Device

为了提升水稻穴播排种器的各项指标,从理论上分析了孔的直径、孔组数、排种盘转速和气吸室真空度等对水稻穴播的影响。在满足水稻农艺要求的基础上,改变了传统的播种方式,并进行了参数优化设计与试验研究。采用计算机视觉试验台完成了单因素试验,对大量试验数据分析表明:气吸室真空度和排种盘转速对实现精密播种、提高排种器工作性能有重要的作用,作业高度的影响可忽略不计。

To choose the right metering is the key to rice hill drop drilling.This paper studies factors of the effect of seed-metering through theoretical analysis and experimental study.Theoretical analysis shows that the diameter of suction hole,the number of suction hole,the suction vacuum and the speed of seeding disk all have influence on seeding effect.A single factor test was performed using a computer vision test bed, through a large number of experimental data analysis shows that air suction chamber vacuum and seed disc speed are important to improve the work performance of the seeder and achieve precision sowing, the impact of the job height is negligible.