Authors

Abstract

To solve the problems such as low film recovery rate and high soil content of the recovered film of the surface residual film recycling machine, the parameters of the vegetable surface residue recycling machine were optimized. After modeling and theoretical analysis of the loosening shovel and film sweeping device, the key structural parameters of the machine were determined. The Box-Benhnken Design analysis test results in Design-Expert were used to establish the comprehensive effects of speed, rotational speed, and angle of membrane picking device on the recovery and soil content. Then Matlab was adopted to analyze the law of the comprehensive influence of three factors on two responses. The most significant factor affecting pickup net rate J was rotational speed Y2, and the most significant factor affecting soil percentage was the angle Y3 of the film picking device. By optimizing the experimental results by Design-Expert, the optimum operating parameters of the machine were obtained as follows: the forward speed of the machine was 3.2km/h, the revolving speed was 631.95r/min, the angle of the film picking device was 65.4°, the scavenging rate J and soil rate H of the residual film recycling machine were 87.084% and 10.382%, respectively.

Abstract in Chinese

为解决残膜回收机起膜率低、回收的残膜含土率高等问题，对蔬菜地表层残膜回收机进行参数优化。对起膜铲和扫膜装置建模和理论分析，确定该机具关键结构参数。利用Design-Expert中的Box-Benhnken Design分析试验结果，建立速度、转速和挑膜装置角度对回收率和含土率的综合影响效应。运用Matelab对三因素对两响应的综合影响规律进行分析得出结论：对拾净率J影响最显著的因素为转速Y2，对含土率影响最显著的因素是挑膜装置角度Y3。通过Design-Expert对实验结果进行优化，得到机具的最佳作业参数：机具前进速度为3.2km/h，转速为10.5r/s，挑膜装置的角度为65.4°，残膜回收机的拾净率J和含土率H分别为87.084%、10.382%。