自由托盘输送水果分级执行机构仿真优化分析

Grading actuator simulation and optimization analysis of free pallet conveying fruit

为了提高自由托盘输送条件下易损伤水果分级的准确性,在ADAMS中建立了易损水果分级机的虚拟样机仿真模型,采用三因素三水平的正交仿真分析,研究了分级执行机构转动的角度、输送带的速度、水果的质量3个因素对水果分级准确率的影响,得到了可以表征水果分级准确性的回归方程,最后由得到的回归方程计算所得的工艺参数对水果分级的准确性进行验证试验.结果表明：当单个水果的质量范围在236.3-287.7 g变化时,水果分级的准确率为86.7%;当单个水果质量范围在247.8-275.2 g变化时,水果分级准确率达到100%.

To improve the accuracy of delicate fruit production line for fruit grading and reduce the blindness of scan debugging, the virtual prototype simulation model was established in ADAMS software. Through the quadratic general rotary design experiments with three factors and three levels at virtual prototype, the effects of rotating actuator angle, conveyor belt speed and fruit weight on the fruit grading accuracy were discussed to obtain the regression equation of the accuracy for fruit classification. The process parameters of vulnerable fruit production line for fruit grading were obtained by the regression equation and used to conduct verification test. The results show that when the weight of fruit ranges from 236.3 to 287.7 g, the fruit grading accuracy is 86.7%. When fruit weight ranges from 247.8 to 275.2 g, the fruit grading accuracy rate reaches 100%.