油莎豆联合收获机反旋抛送装置的设计与试验  

Design and Test of the Anti-rotation Throwing Device of the Cyperus Edulis Combine Harvester

作　　者：赵壮 王东伟[1] 何晓宁[1] 尚书旗[1] 申世龙 夏超 郑效帅 卢玉伦 Zhao Zhuang;Wang Dongwei;He Xiaoning;Shang Shuqi;Shen Shilong;Xia Chao;Zheng Xiaoshuai;Lu Yulun(Mechanical and Electrical Engineering College,Qingdao Agricultural University,Qingdao 266109,China)

机构地区：[1]青岛农业大学机电工程学院,山东青岛266109

出　　处：《农机化研究》2023年第7期65-70,共6页Journal of Agricultural Mechanization Research

基　　金：自治区科技支疆计划项目(2020E02112);河南省重大科技专项(211100110100)。

摘　　要：根据油莎豆收获机挖掘装置普遍存在挖掘阻力大、漏果率高等问题,结合油莎豆种植模式及油莎豆根系的物理特性,设计了一种油莎豆反旋挖掘装置,重点分析了反旋刀片的结构参数对于反旋抛送效率的影响关系及各结构参数的取值范围。利用EDEM仿真试验,建立油莎豆团聚体的离散元模型,结合反旋刀片的运动分析和结构参数分析,以反旋刀片的弯折角、工作幅宽及回转半径为试验因素,以刀片阻力和刀轴扭矩为试验指标进行试验设计,运用多目标变量优化方法建立了优化模型,得出反旋刀片最佳结构参数:弯折角50.00°,工作幅宽140.00mm,回转半径184.94mm。田间试验验证表明,反旋抛送装置满足油莎豆收获要求。In this paper,based on the common problems of large digging resistance and high fruit leakage rate in the excavation device of the Cyperus edulis harvester,combined with the planting mode of cyperus edulis and the physical characteristics of the root system of cyperus edulis,a reverse-rotating excavating device of cyperus edulis was designed.Focus on the analysis of the influence of the structure parameters of the counter-rotating blade on the counter-rotating throwing efficiency and the value range of each structural parameter.Using the EDEM simulation test,the discrete element model of the cedar agglomerate is established,combined with the motion analysis of the counter-rotating blade and structural parameter analysis,the bending angle,working width and gyration radius of the counter-rotating blade are used as test factors,and the blade resistance and cutter shaft torque are used as test indicators for test design.The optimization model is established by using the multi-objective optimization method.The best structural parameters of the reverse-rotating blade:bending angle 50.00°,working width 140.00mm,gyration radius 184.94mm,verified by field trials,the results show that the reverse-rotating throwing device meets the harvesting requirements of cyperus edulis.

关 键 词：反旋抛送 离散元仿真 油莎豆团聚体 EDEM 

分 类 号：S225.73[农业科学—农业机械化工程]