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当前位置: 首页 > 文章 > 藜蒿扦插机分苗取苗机构的设计与运动分析 华中农业大学学报 2013 (4) 116-121
Position: Home > Articles > Mechanism design and kinematic analysis of parting and taking of transplanter for Artemisia selengensis using fresh cuttings Journal of Huazhong Agricultural University 2013 (4) 116-121

藜蒿扦插机分苗取苗机构的设计与运动分析

作  者：
何达力;王磊;黄海东;舒彩霞
单  位：
华中农业大学工学院
关键词：
藜蒿;扦插机;分苗;取苗;运动分析
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。
译  名：
Mechanism design and kinematic analysis of parting and taking of transplanter for Artemisia selengensis using fresh cuttings
作  者：
HE Da-li WANG Lei HUANG Hai-dong SHU Cai-xia College of Engineering,Huazhong Agricultural University,Wuhan 430070,China
关键词：
Artemisia selengensis;transplanter using cutting;parting;taking;kinematic analysis
摘  要：
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.

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