分段式花生联合收获机摘果和清选部分的设计

青岛农业大学毕业论文（设计）题目：分段式花生联合收获机摘果和清选部分的设计姓名：888888学院：机电工程学院专业：888888888888888888888班级：2008.08学号：88888888指导教师：888888····年！月！日目录摘要..............................................................................................................................................IABSTRACT...................................................................................................................................II1绪论.......................................................................................................................................11.1设计的目的和意义.............................................................................................................11.2花生收获机的国内外发展现状.........................................................................................21.3国内外摘果及清选装置的研究现状.................................................................................41.4摘果及清选部件的主要研究内容及设计要求.................................................................62方案选择...................................................................................................................................92.1摘果装置方案设计.............................................................................................................92.2清选装置设计方案设计...................................................................................................143摘果装置的设计......................................................................................................................173.1摘果装置的性能分析.......................................................................................................173.2摘果滚筒长度的确定.......................................................................................................193.3摘果滚筒转速的确定.......................................................................................................193.4摘果滚筒直径计算...........................................................................................................213.5摘果滚筒搅龙及其上爪齿的设计...................................................................................223.6凹板筛尺寸的确定...........................................................................................................233.7摘果滚筒的功率计算.......................................................................................................244清选装置的设计.....................................................................................................................274.1清选装置性能和工作原理分析.......................................................................................274.2逐稿器的设计计算...........................................................................................................284.3清选风机的设计及选用...................................................................................................304.4振动筛的设计计算...........................................................................................................354.5螺旋输送器设计...............................................................................................................365总结.....................................................................................................................................40参考文献.......................................................................................................................................41致谢...........................................................................................................................................42I分段式花生联合收获机摘果与清选部分的设计摘要本文设计了分段式花生联合收获机的摘果及清选部分。该部分主要由螺旋输送器、逐稿器、凹板筛、摘果滚筒、振动筛、清选风机等零部件组成。它主要的工作过程是：花生通过输送装置喂入到高速转动的摘果滚筒进行摘果作业，经摘果后花生荚果经凹板筛落入到逐稿器，在清选风机、振动筛和逐稿器的联合作用下对花生进行清选，经过清选的花生荚果落入到螺旋输送器被输送到机体的一侧，最后进入集果箱。文中主要分析了摘果及清选装置的工作原理，计算了部分零部件的结构尺寸，并且确定了他们的转速和功率，论述了其工作过程。关键词：摘果装置；清选装置；联合收获机IIDesignoftheSegmentedPeanutsUnitedHarvestMachineStrippingandCleaningPartsAbstractThispaperhasdesignedandresearchedthestrippingandcleaningpartsofthesegmentedpeanutsunitedharvestmachine.Thestrippingandcleaningequipmentareconsistofpickingroll,escapegrid,rack,airblower,vibratoryscreen,crewconveyorandsoon.Itsmainlyworkingprocessisthat:theunpickedpeanutsareconveyedtothepickingrollerwhichishighlyrunningupthroughtransportequipment,andthenaredeliveredtotherockthroughtheholesoftheescapegrid,thepickedpeanutsareclassifiedbytheunitedworkofrack，vibratoryscreenandairblower.Thepeanutswhichareclassifiedareconveyedtothegatherequipmentbytherunningofcrewconveyor.Theworkingprincipleandstructureofthestrippingandcleaningpartshavebeenanalyzedinthispaper,anditalsocalculatesthestructuresize,speedandneededpowerofsomeimportantparts,andthestrippingandcleaningparts`mainlyworkingprocessandthecorrespondingtheoreticalanalysesalsocanbereadinthispaper.Keywords:Strippingequipment;Cleaningequipment;Unitedharvestmachine.青岛农业大学机电工程学院本科毕业设计（论文）11绪论1.1设计的目的和意义花生主要生长在北纬三十五度到北纬四十度的范围内，在世界范围内广泛种植，是我国与国际的农产品交易中的重要创汇作物，在我国的种植区主要集中在华南沿海、华北平原以及渤海地区[1]。统计显示，我国花生种植面积连续12年超过四百万公顷，并且呈逐年增长的趋势，2008年我国花生种植面积居世界第二，总产量居世界第一。据专家推测到二十一世纪中页我国花生种植面积将达到六百万公顷以上[2]。随着我国农业结构的调整，以及在市场经济的调节作用下，我国的花生种植面积还将进一步增加，尤其是在西部半干旱地区。随着中国加入WTO，我国的农业生产开始与世界接轨，花生收获机械的研发与推广也