农机化研究2025，Vol.47Issue(7)：127-133,7.DOI:10.13427/j.issn.1003-188X.2025.07.018
2BXZ-4型自走式小区精量播种机的设计与试验
Design and Experiment of 2BXZ-4 Self-propelled Plot Precision Seeder
摘要
Abstract
Aiming at the significant problems of high manual consumption,high labor intensity,poor sowing quality,low operation efficiency,easy mixing between seeds,and low degree of automation in the sowing operation of breeding experi-ments in residential areas in China,a 2BXZ-4 self-propelled corn and soybean universal residential precision seeder was designed and developed,which can achieve high-speed switching of sowing intervals in residential areas,no mixing be-tween seeds,fully automatic seed supply,high cleanliness seed cleaning,and high-precision sowing.The dual row seed component mirror integrated configuration combined with motor direct drive control was adopted.The radial groove plate and spiral groove plate combined suction structure,as well as vibration charging and negative pressure cleaning technolo-gy,were used to effectively improve the seed changing,suction,and cleaning capabilities of the seed planter;Applying stepper motor linear sliding table pushing technology,laser reflection seed box positioning technology,and empty box pushing pneumatic control technology to the fully automatic feeding device of the stacked pre sorting breeding box,impro-ving the accuracy and efficiency of seed feeding while reducing unnecessary auxiliary labor;By utilizing the cross-sec-tional area difference between the upper and lower oil supply chambers of the hydraulic cylinder piston,combined with a dedicated hydraulic oil circuit and a controllable pneumatic suppression device,a constant pressure was generated during the operation of the seeding unit,and the consistency of the seeding depth was significantly improved.Field experiments and performance tests had shown that the maximum speed of sowing operation in this community was 3.6 km/h,the con-sistency of sowing depth was greater than 95%,the qualified index of grain spacing was greater than 96%,and the mix-ing rate was less than 0.2%.The automated feeding,seeding,and cleaning of the whole machine can effectively improve sowing accuracy and seeding uniformity,reduce mixing rate,and meet the requirements of sowing operation for corn and soybean crops in the community.关键词
小区播种机/自走式/交互排种/自动供种/气动清种Key words
plot seeder/self-propelled/interactive seeding/automatic seed supply/pneumatic seed cleaning分类
农业科技引用本文复制引用
徐涛,刘春旭,朱炫铭,芦磊,李菁,孙锦秀..2BXZ-4型自走式小区精量播种机的设计与试验[J].农机化研究,2025,47(7):127-133,7.基金项目
黑龙江省农业科学院青年科学家培养项目(2021QKPY001) （2021QKPY001）
黑龙江省省属科研院科研业务费项目(CZKYF2021-2-B026) （CZKYF2021-2-B026）
