农机化研究2025，Vol.47Issue(6)：170-178,245,10.DOI:10.13427/j.issn.1003-188X.2025.06.026
基于EDEM的破茬开沟器设计与试验
Design and Experiment of Stubble Breaking and Furrow Opener Based on EDEM
摘要
Abstract
The furrow opener is a key component of a zero tillage seeder,which determines the working performance of the machine.In response to the shortcomings caused by mixed application of seed and fertilizer,this design adopted a fertili-zation mode of separate application of seed and fertilizer,and designed a three disc stubble breaking and furrowing device that can meet the requirements of separate application of seed and fertilizer.The stubble breaking disc pre cut the straw residue,and the grooving disc pushed the straw away and created a deep and a shallow groove to achieve lateral deep dis-tribution of fertilizer.Using discrete element software to simulate and analyze the furrow opener,selecting the diameter of the disc cutter,the angle between the disc cutters,and the forward speed as experimental factors,and the forward resi stance of the disc cutter and the stability coefficient of the groove width as experimental results.Analysis showed that as the diameter,angle,and forward speed of the disc cutter increased,the forward resistance of the furrow opener increased ac-cordingly.The optimal parameters were determined as follows:disc cutter diameter 384.32 mm,disc cutter angle 10.75°,and forward speed 0.41 m/s.The predicted forward resistance of the seed groove disc cutter was 126.78 N,the forward resistance of the fertilizer groove disc cutter was 343.35,and the stability coefficient of the groove width was 92.07%,which can meet the requirements of no tillage operations.关键词
破茬开沟器/离散元法/种肥侧深分施/免耕Key words
stubble breaking and furrow opener/discrete element method/deep side fertilization/no tillage分类
农业科技引用本文复制引用
张杰,张立萍,郑威强,刘思杰,贾永安..基于EDEM的破茬开沟器设计与试验[J].农机化研究,2025,47(6):170-178,245,10.基金项目
新疆自治区科技支疆项目计划(2021E02049) （2021E02049）
