中国农业大学学报2025，Vol.30Issue(8)：198-209,12.DOI:10.11841/j.issn.1007-4333.2025.08.17
西北旱区电控式玉米直插穴播器设计与试验
Design and experiment of electronically controlled direct seeding and planting device for corn in arid northwest China
摘要
Abstract
To address the issue of existing dibble seeders requiring high field flatness in practical operations in northwest arid regions,this study optimized the seed-metering device of the commonly used 2BZ-2 seeder.Taking the rotation angle of the crank in the seeder's parallelogram linkage mechanism as reference,the working process of the seed-metering device was divided into four stages:seed filling,seed picking,hole-making and seeding,and resetting.A microcontroller-based electronic control system was designed to achieve precise control of each working stage,enabling forced seed discharge and mandatory duckbill opening/closing mechanisms,thereby improving seeding stability and adaptability.Through quadratic rotational orthogonal combination bench tests,analysis was conducted with three factors including seed-picking shaft rotation angle,electric actuator stroke,and thrust force,using single-seed qualification rate,missed sowing rate,and repetitive sowing rate as response indicators.Optimization results showed that the optimal seeding performance occurred at 59° seed-picking shaft rotation angle,12.2 mm electric actuator stroke,and 19.4 N thrust force.Experimental verification under these optimized parameters demonstrated that the electronically controlled maize seed-metering device achieved 1.6％empty-hole rate and 91.8％qualified hole-seed quantity rate,which meets the operational quality requirements for dibble seeding machinery.关键词
玉米/直插式播种机/电控系统/试验验证Key words
corn/direct-planting seeder/electronic control system/experimental verification分类
农业科技引用本文复制引用
祁天山,赵武云,石林榕,孙步功,周刚,邓廷豪,李辉,李双成,马永超..西北旱区电控式玉米直插穴播器设计与试验[J].中国农业大学学报,2025,30(8):198-209,12.基金项目
国家自然科学基金项目(52365030) （52365030）
甘肃农业大学伏羲青年英才项目(Gaufx-05Y02) （Gaufx-05Y02）
兰州市青年人才创新项目(2023-QN-146) （2023-QN-146）
国家重点研发计划(2022YFD1602101) （2022YFD1602101）
甘肃农业大学科技创新基金-青年导师扶持基金(GAU-QDFC-2024-06) （GAU-QDFC-2024-06）
