大蒜栽植机栽植系统优化设计与运动分析

针对大蒜在栽植过程中保持蒜尖朝上并直立的农艺要求，将水稻插秧机分插机构工作原理作为大蒜栽植机栽植系统的优化设计基础，对大蒜栽植机栽植系统进行适应性改进。对该机构的运动过程进行分析得到了成穴机构的穴宽、穴距和成穴深的表达式，并以穴宽适中为目标函数，增加了已有研究所缺少的约束条件，建立了大蒜栽植机栽植系统的优化数学模型，探讨了机构有关参数对穴宽的影响。利用Matlab软件对影响穴宽的因素进行了优化计算，优化结果显示理想穴宽与实际穴宽的误差为0.02mm。在ADAMS系统环境下，对大蒜栽植机栽植系统进行运动仿真和分析表明，优化后的分插机构工作参数符合大蒜栽植的农艺需求。

Optimal Design and Kinematic Analysis for Planting System of Garlic Planting Machinery

To meet the agronomic requirements of maintaining the garlic clove upright with its root downward during the process of garlic planting,operating principles of rice transplanting mechanism was used as the optimal design basis of planting system of garlic planting machinery. Equations of cave width, space, depth were obtained through kinematic analysis. Mathematical optimization model was established with required cave width as objective function and restrained conditions not reported previously. Parameters affecting cave width were discussed, and optimized using Matlab. Optimization results indicated that the difference between desired and actual cave width was 0.02mm. Planting system of garlic planting machinery was simulated and analyzed using ADAMS. The results showed that the system met the garlic planting requirements.