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当前位置: 首页 > 文章 > 气吹投种的气吸滚筒式精量排种器设计与试验 甘肃农业大学学报 2019 (2) 211-218
Position: Home > Articles > 气吹投种的气吸滚筒式精量排种器设计与试验 Journal of Gansu Agricultural University 2019 (2) 211-218

气吹投种的气吸滚筒式精量排种器设计与试验

作  者：
姜有忠;侯晓晓;赵永满;胡斌;罗昕;陈永;张欢
单  位：
石河子大学机械电气工程学院
关键词：
精量排种器;气吹投种;辣椒
摘  要：
[目的]针对辣椒等不规整、小粒径种子育苗时存在投种精度差、吸种孔容易堵塞等问题,设计出一种气吹投种的气吸滚筒式精量排种器,并确定该排种器关键参数与结构.[方法]以吸孔形状、正压值、滚筒转速、负压值为影响因子,以单粒率、多粒率、漏播率为排种性能指标,采用4因素3水平正交试验方法,分析各因子对排种性能的影响规律.[结果]影响排种器排种性能的主次因素依次为负压值、吸孔形状、滚筒转速、正压值.最佳参数组合为正压值900 Pa,负压值为3 kPa,滚筒转速为8 r/min,吸种孔为单锥形,此时排种器的单粒率86.83%、多粒率5.35%、漏播率4.61%.此条件下最适合辣椒穴盘育苗播种.[结论]该排种器能够满足育苗精量播种的种植农艺要求,为播种辣椒等小籽粒排种器的设计提供参考依据.
作  者：
JIANG You-zhong;HOU Xiao-xiao;ZHAO Yong-man;HU Bin;LUO Xin;CHEN Yong;ZHANG Huan;College of Mechanical and Electrical Engineering,Shihezi University;Department of Automotive Engineering,Tellow River Institute of Transportation;
关键词：
precision metering device;;air blowing and seeding;;pepper
摘  要：
【Objective】 Aimed at the problems such as poor seeding and seeding accuracy of pepper and other irregular seedlings with small particle size and easy plugging of seed suction holes and so on.The air-suction drum type precision seed metering device for blowing and seeding is used to determine the key structure and performance parameters of the seed metering device.【Method】 In order to analyze the influence of each factor on seeding performance,the factors of suction hole shape,positive pressure value,rotating speed of drum,and negative pressure were used as the influencing factors.Single grain rate,multi-grain rate and leakage rate were selected as seeding performance indexes,and four factors and three levels of orthogonal test methods were used.Analyze the influence of each factor on seeding performance.【Result】 The primary factors affecting the seed-discharging performance of seed metering device in proper order are negative pressure value,suction hole shape,drum rotation speed,and positive pressure value.The optimum combination of parameters is: negative pressure value is 3 kPa,roller speed is 8 r/min,suction hole is single cone,positive pressure value is 900 Pa,at this time,the single grain rate of the metering device is 86.83%,multi-grain rate is 5.35%,leakage rate 4.61%.This condition is most suitable for pepper seeding.【Conclusion】 It is verified by experiment that the seeding device can meet the requirements of planting agronomy.It provides reference basis for seed-metering device design of small and irregular seeds.

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