振动式阶梯铲状马铃薯挖掘机作业性能试验  

Experiment on working performance of potato digger with vibrating type of ladder shovel

作　　者：戴飞[1] 杨杰[1] 赵武云[1] 费强[1] 唐学鹏[1] 

机构地区：[1]甘肃农业大学工学院,甘肃兰州730070

出　　处：《干旱地区农业研究》2014年第3期263-267,共5页Agricultural Research in the Arid Areas

基　　金："十二五"国家科技支撑计划项目"西北绿洲农牧循环技术集成与示范"(2012BAD14B10)

摘　　要：为获得振动式阶梯铲状马铃薯挖掘机最佳作业参数,依据振动减阻收获机理,通过改变影响振动式阶梯铲状马铃薯挖掘机收获作业性能指标的4个主要作业参数:整机前进速度、挖掘深度、挖掘铲长度、曲柄偏心距,以挖掘机损失率、明薯率及伤薯率为评价指标进行马铃薯挖掘性能试验。结合正交试验研究,应用综合评分法得出了振动式阶梯铲状马铃薯挖掘机作业时各参数的最优组合,即:整机前进速度为0.55m·s-1、挖掘深度为210mm、挖掘铲长度205mm、曲柄偏心距为6mm。按照该最优组合作业参数进行试验验证,结果表明,该马铃薯挖掘机明薯率为97.6%、伤薯为3.9%、损失率为3.5%,符合马铃薯收获机质量评价技术规范要求。In order to obtain the optimal job parameter of potato digger with vibrating type of ladder shovel ,accord-ing to the harvest mechanism of vibration and drag reduction ,carried out the performance experiment through changing the 4 major operation parameters as machine speed ,digging depth ,digging shovel length and crank eccentricity these in-fluenced performance indexes of the potato digger ,with the evaluating indicators as ,losing rate ,obvious rate and damage rate .Combining the orthogonal experiment research ,has obtained the optimal combination for each job parameter ,such as machine speed was 0 .55 m·s^-1 ,digging depth was 210 mm ,length of the digging shovel was 205 mm ,crank eccen-tricity was 6 mm by applying the overall rating method .According to the optimal combination of the job parameters to car-ry out the experiment and confirmation ,the experimental results showed that ：The obvious rate was 97 .6% ,the damage rate was 3 .9% and the losing rate was 3 .5% ,which could be met the the specification requirements of quality evalua-tion for the potato harvester .

关 键 词：马铃薯挖掘机 阶梯铲 振动式 参数组合 验证试验 

分 类 号：S225.71[农业科学—农业机械化工程]