中国农机化学报2026，Vol.47Issue(2)：48-54,7.DOI:10.13733/j.jcam.issn.2095-5553.2026.02.008
辅助按压气吸式花生排种器设计与试验
Design and experiment of air-suction peanut seed metering device with auxiliary pressing mechanism
摘要
Abstract
Aiming at the problem of seed loss caused by vibration interference during the seed carrying stage of the air-suction peanut seed dispenser,an air-suction peanut seed metering device with an auxiliary pressing mechanism was designed.The seed metering device mainly consists of a seeding disc,a cleaning brush,a pressing rod disc,an elastic pressing rod,a track ring,and an air chamber cover.During the working process,it is possible to assist in seed pressing during the seed carrying stage,reducing the rate of seed dropping.Key components such as the seeding tray and pressing mechanism were focused on design,and the main structural and working parameters of the components were calculated and determined.A performance test of peanut seed metering device was conducted on the seeder test bed,and the effects of the pressing mechanism,suction hole diameter of the seeder,negative pressure of the air chamber,and rotation speed of the seed metering device on the seeding performance were studied.The experimental results show that the air suction seed metering device with an auxiliary pressing mechanism is not suitable for long peanut seeds,but it has good adaptability to spherical peanut seeds and can improve the stability of the seeder in carrying seeds.The diameter of the suction hole,the negative pressure of the air chamber,and the speed of the seeding plate all have a significant impact on the seeding performance.The main and secondary factors that affect the qualification rate are ranked in order as the negative pressure of the fan,the diameter of the suction hole,and the speed of the seeding plate.After optimization,when the fan pressure is 5.9 kPa,the suction hole diameter is 6.3 mm,and the seeding disc speed is 25 r/min,the seeding qualification rate is 96.6%,the missed seeding rate is 3.0%,and the replay rate is 0.4%.All indicators meet the standard requirements and have been verified through tests.关键词
气吸式排种器/花生/按压机构/弹性压杆Key words
air-suction seed metering device/peanut/pressing mechanism/elastic compression rod分类
农业科技引用本文复制引用
Liu Shanda,Chen Fudong,Wang Kailun,Wang Jiasheng..辅助按压气吸式花生排种器设计与试验[J].中国农机化学报,2026,47(2):48-54,7.基金项目
国家重点研发计划课题(2023YFD2001002) （2023YFD2001002）
山东省花生产业技术体系项目(SDAIT—04-08) （SDAIT—04-08）
