大蒜果秧分离机构的蒜株运动学建模与仿真分析  

Kinematics modeling and simulation analysis of garlic on the garlic picking mechanism

作　　者：于昭洋[1] 胡志超[1] 彭宝良[1] 胡良龙[1] 王海鸥[1] 谢焕雄[1] 

机构地区：[1]农业部南京农业机械化研究所,江苏南京210014

出　　处：《中国农机化学报》2014年第2期216-221,229,共7页Journal of Chinese Agricultural Mechanization

基　　金：公益性行业(农业)科研专项经费资助(200903053);国家现代农业产业技术体系建设专项(CARS-14-08B)

摘　　要：为了分析大蒜果秧分离机构的作业性能,建立了果秧分离机构蒜株的运动学模型,分析了果秧分离过程中蒜株的运动特性。在此基础上,利用仿真软件ADAMS构建了果秧分离机构三维运动仿真模型,实现了果秧分离过程的运动学仿真;通过虚拟双因素试验,验证本果秧分离机构的结构形式和主要结构参数的设计的可行性,研究主要工作参数对果秧分离效果的影响规律。结果表明,本果秧分离机构果秧分离后蒜头的留茎长度较短且一致性较好,伤损率较低,同时合理配置对齐链与主夹持的链速比即可保证切割面的平整性。该研究为大蒜果秧分离机构的设计提供了理论依据。To analyze the working performance of garlic picking mechanism which was proposed in this paper, the kinematic model of garlic on the garlic picking mechanism was established, and garlic kinetic characteristic of picking process was analysed. On this basis, the virtual dynamic prototype of garlic picking mechanism was established by using the dynamic simulation software-ADAMS, the motion of picking process was simulated. The feasibility of structure and main structure parameters of picking mechanism was certificate and the regularities of effect of main operating parameters on pinking was studied through virtual two-factor tests. The results showed that the residual stem length is shorter and consistent, the damage rate is lower by using this garlic picking mechanism, If the speed ratio is appropriate between alignment chain and main clamping chain, the cutting surface of stem is very smooth. The research results provided the theoretical basis for garlic picking mechanism.

关 键 词：大蒜 果秧分离机构 运动学建模 仿真分析 

分 类 号：S633.4[农业科学—蔬菜学]