农机化研究2024，Vol.46Issue(6)：109-115,7.
水平圆盘式大豆单粒精密排种器的设计与试验
Design and Experiment of Horizontal Disc Soybean Single-grain Precision Seed Metering Device
摘要
Abstract
In order to realize the precision seeding of soybean single seed,a horizontal disc precision seed metering de-vice for single seed soybean was designed,and its working principle was analyzed.According to the physical parameters pf soybean seeds,the parameters such as the size and diameter of the type hole of the seeding plate were calculated and analyzed,and the length,width and height of size of the type hole were determined to be 9 mm,5 mm and 9 mm,re-spectively.In order to obtain the best performance of the seed metering device and the soybean variety were used as the test factors,and the seeding qualification index,replay index and missed seeding index were used as the test indicators.Using EDEM software to carry out simulation experiments,it was found that the optimal speed of the seed metering device was 40 r/min.At this time,the qualified rate of seed metering was greater than 96.4%,the replay rate was less than 2%,and the missed seeding rate was less than 1.7%.Under the optimal parameters,the bench test verified that when the speed of the seed metering device was 40 r/min,the seeding pass rate of the three varieties of soybean seeds were all greater than 96.5%,the reseeding rate was less than 2%,and the missed seeding rate was less than 1.7%,which can meet the requirements of single-grain precision sowing of soybeans.关键词
大豆/精密单粒排种器/水平圆盘/EDEMKey words
soybean/single-grain precision seed meter/horizontal disc/EDEM分类
农业科技引用本文复制引用
李威,徐浩,李晓红,李赫,余永昌..水平圆盘式大豆单粒精密排种器的设计与试验[J].农机化研究,2024,46(6):109-115,7.基金项目
国家大豆产业技术体系专项(CARS-04) （CARS-04）
