水平圆盘式苗间除草装置试验台优化试验  

Optimization experiment on test-bed of horizontal disk weeding unit between seedlings

作　　者：韩豹[1,2] 吴文福[2] 申建英[1] 

机构地区：[1]东北农业大学工程学院,哈尔滨150030 [2]吉林大学生物与农业工程学院,长春130025

出　　处：《农业工程学报》2010年第2期142-146,共5页Transactions of the Chinese Society of Agricultural Engineering

基　　金：国家"十一五"科技支撑项目(2006BAD11A05-06)

摘　　要：为优化水平圆盘式苗间除草装置的设计并确定其关键参数的最优组合,在分析其构成及工作原理的基础上,以苗间除草部件为研究对象,通过4因素4水平正交试验,分析了除草部件作业速度、齿盘转速、锄齿数目及其安装半径4个因素对苗间除草性能的影响,优化出最佳工作参数组合。试验结果表明,锄齿数目和作业速度对苗间除草装置的性能影响显著。最佳优化方案是:锄齿数目12、其安装半径160mm、齿盘转速170r/min和作业速度2.1m/s,该条件下苗间除草装置的伤苗率为4.41%、苗间除草率可达73.1%、埋苗率小于3%,满足旱田作物苗间除草作业的农艺要求。To optimize the design and confirm the optimal combination of the key parameters of weeding unit which is part of weeding machine,the structure and working principles of the weeding unit were analyzed.A multi-index orthogonal experiment of four factors（the working speed,the rotation speed of weeding unit as well as the number and installation radius of weeding tines）were carried out,and each factor had four levels.For optimizing the best operational parameters combination,the effects of the parameters of the weeding unit on its weeding performances were analyzed. The experiment result indicated that the number of weeding tines had significantly effect on the performances of the weeding unit.According to the analysis,the best scheme was：the number of weeding tines 12,and rotation speed 190 r/min,installation radius 170 mm,working speed 2.1 m/s.Under such working conditions,the wounded seedling rate,weeding rate,and seedling buried percentage were 4.41%,73.1%,less than 3%,respectively.The results can satisfied with the agronomic requirements of weeding between seedlings in dry farmland.

关 键 词：农业机械 杂草防治 优化 除草机 苗间松土除草 

分 类 号：S224.13[农业科学—农业机械化工程]