摘要
设计了一种适合玉米和大豆作物株间作业的组合梳齿式除草机构,为优化该机构的设计并确定其关键参数的最优组合,利用正交试验方法对试验数据进行处理,通过极差分析,确定了除草部件工作参数对株间除草率和伤苗率的影响程度,优化出最佳工作参数组合。试验结果表明,梳齿数目和梳齿盘转速对株间除草机构的性能影响显著。最佳优化方案:梳齿数目6、梳齿间距50 mm、梳齿盘转速180 r/m in和作业速度2.3 m/s,该条件下苗间除草装置的伤苗率为2.73%,苗间除草率可达87.6%。研究结果为设计性能可靠的株间除草机构提供了理论依据。
An intra-row weeding mechanism was designed.To optimum the design and confirm the optimal combination of the key parameters of the mechanism which is one part of cultivators,the experimental date was processed by orthogonal test method,the effect degree of working parameters of the weeding unit on intra-row weeding rate and its injuring seedling rate was determined through range analysis,and the best operational parameters combination was discovered.The experiment result indicated that the number of weeding tines and revolving speed of the comb disc had significantly effect on the performances of the weeding unit.According to the analysis,the best scheme was: the number of weeding tines 6,and revolving speed 180 rmin,space between the tines 50 mm,work velocity 2.3 ms.Under such working conditions,the injury seedling rate and weeding rate were 2.74%,87.6%respectively.The study can provide theoretical basis for the design of reliable intra-row weeding mechanism.
出处
《农业工程》
2011年第1期16-19,共4页
AGRICULTURAL ENGINEERING
基金
国家"十一五"科技支撑项目(2006BAD11A05-06)
关键词
农业机械
杂草防治
优化
除草机
株间除草机构
Agricultural machinery,Weed control,Optimization,Weeding machine,Intra-row weeding mechanism
