农机化研究Issue(7)：13-17,5.
蔬菜钵苗取苗机构运动分析与参数优化
Motion Analysis for Vegetable Potted Seedling Pick-up Mechanism with Double Crank Geared Linkages
摘要
Abstract
In the present process of vegetable transplanting operation in China , the dibble-type semi-automatic trans-planter is the best available technology of applying mulch film with holes to transplanting vegetable potted seedlings . However , the dibble-type transplanter has very low efficiency because of the artificial feeding seedlings .Aiming at this problem , a new automatic transplanter for vegetable potted seedling was designed while the working principle of it was ex -pounded .It has the potted seedling pick-up mechanism with double crank geared five-bar linkages .The kinematics model of the pick-up mechanism was established by using the mathematical analysis method .The influence law of the structural parameters on the motion trajectory and relative velocity of the seedling pick-up arm cusp were obtained .The design of optimization objective for picking vegetable potted seedling was proposed .Meanwhile , the optimal parameter combination of the pick-up mechanism was obtained by using MATLAB based on the objective .With it, the path of the seedling pick-up arm inserting and pulling out the seedling pot were almost straight line , and were nearly perpendicular to potted seedling .Furthermore , the velocity of seedling taking and dropping cusps were very low .Then , the demands of picking and feeding potted seedling for vegetable automatic transplanter could be met .关键词
蔬菜钵苗移栽机/运动学/取苗机构/齿轮-连杆机构/参数优化Key words
vegetable potted-seedling transplanter/kinematics/seedling pick-up mechanism/geared linkage mecha-nism/parameter optimization分类
农业科技引用本文复制引用
金鑫,李树君,杨学军,颜华,吴俭敏,孙星,张萌..蔬菜钵苗取苗机构运动分析与参数优化[J].农机化研究,2014,(7):13-17,5.基金项目
国家高技术研究发展计划项目（2012AA10A501）；国家重点基础研究发展计划项目 （）
