农业现代化研究Issue(5)：916-920,5.DOI:10.13872/j.1000-0275.2015.0091
铲筛激振式马铃薯挖掘机的设计与研究
Design and research on vibrating potato digger with shovel and sieve
摘要
Abstract
In order to solve the problem s of no adaptive m achine type and shortage of pow er w ith a sm all hand tractor whenpotatodiggerworkinginhillyandmountainousareainChina,avibratingpotatodiggerwithshovelandsievewas designed,whichcanreduceresistanceandimprovetheefficiencyofseparation.Therearofdiggingshovelwasdesigned grid-shaped,the inclination angle of separating sieve rack increases from the inside to the outside to enlarge its w orking area.Thevibrationamplitudeandanglesofdiggingshovelcanbeadjustedwithhingefour-rodswingingmechanism and com bined eccentric w heel. Field test results show ed that the digger has w ell separation effect, the obvious rate w as 96.2% , the cleaning rate w as 97.8% and the dam age rate w as less than 3.9% . W ith the forw ard speed is 0.34 m/s, the average traction resistance is 1 498 N w hen no vibration,how ever,the average traction resistance are 1 204 N and 995 N w hen the am plitude are 4 m m and 8 m m respectively, and the frequency is 14 H z. T he results indicated that vibrating shovel can reduce traction resistance and im prove separation efficiency, all the perform ance indexes of the designed diggerm eetthe operation requirem ents.关键词
农业机械/马铃薯挖掘机/振动减阻/土薯分离/田间试验Key words
agricultural m achinery/potato digger/drag reduction in vibration/separation tubers from soil/field test分类
农业科技引用本文复制引用
张瑞,孙伟,吴建民,王蒂,张俊莲,石林榕,张华..铲筛激振式马铃薯挖掘机的设计与研究[J].农业现代化研究,2015,(5):916-920,5.基金项目
国家科技支撑计划项目（2012BAD06B03）；甘肃省农业科技创新项目（GNCX-2012-48）。 （）
