变量施肥抛撒机撒肥机构研究  

Design and Experiment on Spreading Mechanism of Variable Rate Fertilizer Spreader

作　　者：张睿[1] 王秀[1] 马伟[1] 周建军[1] 姜凯[1] 范鹏飞[1] 冯青春[1] 

机构地区：[1]北京农业智能装备技术研究中心,北京100097

出　　处：《农机化研究》2013年第11期153-155,163,共4页Journal of Agricultural Mechanization Research

基　　金：国家高技术研究发展计划项目(2012AA101900)

摘　　要：针对变量施肥抛撒机,研究设计了一种肥料抛撒机构。运用抛射运动理论,分析了肥料斜向上抛射的运动和受力,设计并确定了具有分肥装置拨肥叶片的结构和参数,对其结构和参数设计进行了分析计算。通过对比"U"型结构的拨肥叶片,该抛肥机构具有较好的抛撒均匀性,在有效施肥幅宽内平均施肥量为205.06kg/hm2,变异系数为14.15%。Aiming at the variable rate fertilizer spreader,a fertilizer spreading mechanism was designed.A motional equation of fertilizer granular at moment of thrown from vane was established by projectile motion theory,and then the vane of adding separated machinery was designed and corresponding machinery parameters were analyzed and calculated.The experiments on comparing of ＂ U ＂ type fertilizer spreading vane,the fertilizer spreading machinery has better scatter uniformity.When fertilization amount was 205.06kg / hm 2 and the spreader breadth was 30m,the results shown that the coefficient of variance was 14.15%,which indicates the spreading mechanism can meet the need of practical production.

关 键 词：变量施肥 抛肥机构 农业机械 

分 类 号：S224.25[农业科学—农业机械化工程]