摘要
为提高藜蒿扦插的生产效率,减轻劳动强度,研制了一种藜蒿扦插机。介绍了该机的结构和工作原理,分析了藜蒿苗秆在分苗、取苗机构中的运动规律,建立了藜蒿苗秆分苗、取苗过程的运动模型及其在分苗、取苗过程中的轨迹、速度和加速度方程,确定了分苗过程中苗秆的速度vp取0.02 m/s、加速度ap取1.2 m/s2时和取苗过程中苗秆最大角速度为1.9 rad/s、最大角加速度为6.6 rad/s2,回程过程气嘴接头最大角速度为2.2 rad/s、最大角加速度为14.0 rad/s2时能有效实现分苗和取苗,并应用MATLAB软件分析了藜蒿苗秆的轨迹、速度、加速度的变化规律,验证该机分苗取苗机构是可行的。
A transplanter for fresh cuttings of Artemisia selengensis was designed in order to solve the problem of low productivity and the high intensity of labour during the manual work of sticking.This paper made a brief introduction to the working principles of this transplanter,and the rules of the parting and taking motion were analyzed.A motion model of the fresh cuttings during the process of parting and taking was set up,the equations of locus,velocity and acceleration for a single cutting during the parting and taking processes were derived.It is found that when the velocity of each single cutting is 0.02 m/s and the acceleration of it is 4.6 rad/s2 during the parting process and the maximum angular velocity of each single cutting is 1.9 rad/s,and the maximum angular acceleration of it is 6.6 rad/s2 and the maximum angular velocity of the picker is 2.2 rad/s,and the maximum angular acceleration of it is 14.0 rad/s2 on its way back during the taking process,it can part and take the fresh cuttings effectively,and the variation tendency of locus,velocity and acceleration was analyzed by using MATLAB,which proved the feasibility of the parting and taking function of the transplanter through experiment.
出处
《华中农业大学学报》
CAS
CSCD
北大核心
2013年第4期116-121,共6页
Journal of Huazhong Agricultural University
基金
湖北省武汉市科技攻关项目(201220822259-3)
关键词
藜蒿
扦插机
分苗
取苗
运动分析
Artemisia selengensis
transplanter using cutting
parting
taking
kinematic analysis
