农业机械学报2018，Vol.49Issue(5)：93-107,15.DOI:10.6041/j.issn.1000-1298.2018.05.011
2BDB-6(110)型大豆仿生智能耕播机设计与试验
Design and Experiment of 2BDB-6(110) Soybean Bionic Intelligent Till-sowing Machine
摘要
Abstract
Insufficient soil water content and slower accumulated temperature rise of the plow layer during spring time tillage in Northeast China severely restricts soybean root growth and soybean development.Based on these issues,a 2BDB-6 (110) soybean bionic intelligent till-sowing machine was designed,which was capable of shallow loosening,soil crushing,seeding,ridging and compaction.This machine could significantly raise the soil temperature and water content of plow layer when sowing and fertilizing.And then the bionics,machinery design,reverse engineering and curve fitting were methodologically combined to design a hare claw toe bionic shallow loosening shovel and a pangolin scale bionic ridging shovel both with the anti-drag function,and microcontroller was used to design pressure intelligent monitoring system.Field comparative tests confirmed that the bionic shallow loosening and ridging tillage preparing devices significantly increased the soil temperatures within a certain range,which outperformed the traditional tillage sowing device in reducing operational drag by 13％ ～20％ and the real-time pressure monitoring device can significantly enhance the stability of compaction intensity and increase the average soil water content (0 ～ 100 mm) by 1.36％.Parameter optimization experiment suggested that the optimal parameters of tillage sowing combined operation were as follows:shallow loosening depth of 20 cm,and compaction strength of 48 kPa.By contrast verification test,it was found that compared with traditional seeding machine,the proposed machine could raise the soil temperature by 0.7℃ (depth at 10 cm),1.3 ℃ (depth at 20 c m) and 0.9℃ (depth at 30 cm),raise the average soil water content (0 ～100 mm) by 0.47％,advance soybean emergence time by 0.52 d,and increase soybean yield by 2.05％.It was a powerful guarantee for per-unit-area soybean production in Northeast China.关键词
大豆耕播机/仿生耕整/变量施肥/镇压力监控Key words
soybean till-sowing machine/bionic tillage/variable rate fertilization/pressure monitoring分类
农业科技引用本文复制引用
贾洪雷,郑健,赵佳乐,郭明卓,庄健,王增辉..2BDB-6(110)型大豆仿生智能耕播机设计与试验[J].农业机械学报,2018,49(5):93-107,15.基金项目
国家重点研发计划项目(2017YFD0700701)、国家科学自然基金项目(51705194)和吉林省科技发展计划项目(20160307011NY) （2017YFD0700701）
