作 者：
金鑫;李树君;杨学军;颜华;吴俭敏;孙星;张萌
单 位：
现代农装科技股份有限公司;中国农业机械化科学研究院;中国农业大学
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
摘 要：
针对目前吊篮式半自动蔬菜移栽机手工喂入效率低的问题,设计了一种具有双曲柄齿轮—五杆式钵苗取苗机构的蔬菜自动移栽机。同时,建立了该机取苗机构的运动数学模型,并对机构的运动学特性进行了分析,得出了取苗机构主要参数对取苗臂尖点轨迹和速度的影响规律;提出了蔬菜移栽自动取苗的设计优化目标,利用MATLAB优化软件,优选出了取苗机构的一组最佳参数组合。在此组合下,取苗机构取苗、拔苗段的运动轨迹几乎是直线且与钵苗的垂直度较高,取投苗点速度较低,满足蔬菜自动移栽机的取苗、喂苗要求。
译 名：
Motion Analysis for Vegetable Potted Seedling Pick-up Mechanism with Double Crank Geared Linkages
作 者：
Jin Xin;Li Shujun;Yang Xuejun;Yan Hua;Wu Jianmin;Sun Xing;Zhang Meng;College of Engineering,China Agricultural University;Chinese Academy of Agricultural Mechanization Sciences;The Modern Agricultural Equipment Co.,Ltd;
关键词：
vegetable potted-seedling transplanter;;kinematics;;seedling pick-up mechanism;;geared linkage mechanism;;parameter optimization
摘 要：
In the present process of vegetable transplanting operation in China,the dibble-type semi-automatic transplanter 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 expounded.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.
