农业机械学报2018，Vol.49Issue(1)：77-85,9.DOI:10.6041/j.issn.1000-1298.2018.01.009
凸轮摇杆式摆动型玉米株间除草装置设计与试验
Design and Experiment of Cam Rocker Swing Intra-row Weeding Device for Maize
摘要
Abstract
As people pay more and more attention to food safety issues,chemical weeding is increasingly limited.Compared with chemical weeding and artificial weeding,mechanical weeding has the advantage of less pollution and high efficiency,which conforms to the trend of sustainable agricultural development.However,the traditional cultivation can only remove interstage weeds and cannot remove weeds between plants.In order to meet the requirements of mechanical intra-row weeding for maize in China,a cam rocker swing intra-row weeding device was designed.The overall structure and working principle of the weeding device were illustrated and analyzed.The key components of weeding device were designed,such as the cam rocker mechanism and the weeding knife.The factors that affected the effect of weeding were got based on the kinematic and force analysis of weeding device.For the performance of weeding device,the forward speed,spring stiffness coefficient and weeding knife rotating speed were taken as experimental factors,and weeding rate and injury rate were taken as test indexes.The orthogonal test L9 (34) was conducted in the indoor soil bin for getting test factors affect the performance of weeding device work.Test results showed that the order of the various affecting factors were the spring stiffness coefficient,forward speed and weeding knife rotating speed;the best combination was as follows:the spring stiffness coefficient was 60 N/mm,forward speed was 0.6 m/s,weeding knife rotating speed was 130 r/min.To the optimal level combination of verification experiment:weeding rate was 89.8％,and injury rate was 2.1％.关键词
玉米/株间除草/摆动型/凸轮摇杆机构/优化试验Key words
corn/intra-row weeding/swing type/cam rocker mechanism/optimization test分类
农业科技引用本文复制引用
周福君,王文明,李小利,唐遵峰..凸轮摇杆式摆动型玉米株间除草装置设计与试验[J].农业机械学报,2018,49(1):77-85,9.基金项目
国家重点研发计划项目(2016YFD0701905)和黑龙江省应用技术研究与开发计划重大项目(GA168301) （2016YFD0701905）
