番茄收获机喂入机构运动特性分析与参数优化

Motion Characteristics Analysis and Parameter Optimization for Tomato Harvester Feed Mechanism

为提高番茄收获机捡拾装置效率,减少果实损伤和堵塞现象,对番茄收获机捡拾机构运动轨迹进行了优化。建立了该机构的运动数学模型,并基于此模型进行了ADAMS参数化建模,分析了机构主要参数对运动轨迹的影响。以收获过程中捡拾机构的抖动性和番茄果秧喂入稳定性为目标,进行参数优化分析,获得了一组最优参数组合。在此组合下,该机构具有良好的运动特性,能够满足番茄果秧收获的农艺要求。

To reduce the inefficient of tomato harvester pickup mechanism and avoid the fruit injury and blockage,the movement trajectory of tomato harvester pickup mechanism was optimized.Firstly,the motion mathematical model of mechanism was established and parameterized in ADAMS.And then,the effect of main parameters on motion trajectory was analyzed.The jitter of pickup mechanism and tomato feeding stability in the process of harvesting were taken as optimization goal.The parameter optimization analysis was performed.Finally,a set of optimal parameter combination was obtained.In this combination,the mechanism had good movement characteristics,which could meet the agronomic requirements of tomato harvest.