农业机械学报2018，Vol.49Issue(3)：104-113,10.DOI:10.6041/j.issn.1000-1298.2018.03.012
帆布带式马铃薯挖掘-残膜回收联合作业机设计与试验
Design and Experiment of Canvas Belt Combined Operation Machine for Potato Digging and Plastic Film Collecting
摘要
Abstract
According to the problems of field plastic film pollution with film mulching of double rows on a big ridge cultivation pattern of potato in northwest arid area of China,the canvas belt combined operation machine for potato harvesting and plastic film collecting was designed,which had synchronous implementation function of potato harvesting and plastic film collecting.Based on design and calculation analysis of key operation parts for prototype,the operation parameters of anti-twining device,canvas belt transporting film device and floating curl-up film mechanism were determined.The related experimental factors and their range of values were determined which affected the plastic film collecting ratio of the combined recovery machine.The Box-Behnken experimental design with four factors and three levels was performed,the mathematical models between the key parameters such as operation machine speed,film-curling driving roller rotating speed,transporting film axis rotating speed,transporting film sheet dip angle and plastic film collecting ratio were established,and then the effects of various parameters and their interactions were analyzed as well.The test results showed that effects order of four parameters on the plastic film collecting ratio were as follows:film-curling driving roller rotating speed,operation machine speed,transporting film axis rotating speed and transporting film sheet dip angle.The optimal working parameters were combined operation machine speed of 0.72 m/s,film-curling driving roller rotating speed of 303 r/min,transporting film axis rotating speed of 499 r/min and transporting film sheet dip angle of 29°.Confirmatory tests showed that the average value of the plastic film collecting ratio was 92.1％,compared with before the optimization it was dropped significantly.At the same time,under the operating parameters the obvious ratio of potato was 96.6％ and the injury ratio of potato was 2.2％,which were up to the relevant work quality evaluation specification requirements.关键词
马铃薯/残膜回收/帆布带式/联合作业机/试验Key words
potato/plastic film collecting/canvas belt type/combined operation machine/experiment分类
农业科技引用本文复制引用
戴飞,郭笑欢,赵武云,辛尚龙,刘小龙,吴正文..帆布带式马铃薯挖掘-残膜回收联合作业机设计与试验[J].农业机械学报,2018,49(3):104-113,10.基金项目
农业部公益性行业科研专项(201503105)和甘肃省科技重大专项(143NKDF016) （201503105）
