Design and Experiment of Anti-winding Cutting Table for Mechanized Harvesting of Sweet Potato Vine
In order to solve the problem of intertwined sweet potato seedlings and vines,which makes it difficult to sepa-rate them for harvesting,an anti-tangling cutter for mechanized harvesting of sweet potato seedlings and vines was de-signed,and the force and motion analysis of the operation process of the monopoly-like crop cutting mechanism and the telescopic tooth picking mechanism were carried out to obtain their operation parameters.At the same time,in order to avoid the tangling of the monopoly-type cutting mechanism and the telescopic tooth picking mechanism during operation,a test rig was built for the sweet potato rice vine mechanized harvesting anti-tangling cutter and a single-factor test was conducted to determine the optimal speed range of the monopoly-type cutting mechanism and the telescopic tooth picking mechanism;the Box-Behnken test in Design-Expert 13.0 software was used to study the forward speed,cutting speed,and the speed of the cutter.The Box-Behnken test method in Design-Expert 13.0 software was used to study the effects of the interaction of forward speed,cutting speed and picking speed on the recovery rate,entanglement degree and injury rate of sweet potato seedlings,and a regression model was established to optimize the test parameters.The recovery rate of sweet potato seedlings and vines was 94.553％,the degree of entanglement was 2.169％,and the injury rate of potatoes in the harvesting process was 0.213％.In order to verify the reliability of the optimal parameters,the data of the optimal working parameter combination was zeroed into a whole and used as the operating parameters of the field test to conduct field test verification,and the verification results were obtained,and the recovery rate of sweet potato seedling vine was 93.55％,the degree of entanglement was 2.42％,and the injury rate of potato was 0.38％.
万方数据
维普
