机械毕业设计1193脐橙分级机分级部分设计

1脐橙分级机分级部分摘要近年来，随着我国特别是赣南地区脐橙种植业的发展，对脐橙分级精度的要求越来越高。脐橙分级是脐橙采后加工的第一步，分级结果对分级后销售价格及后续加工都有极大的影响。以实现脐橙机械化分级为出发点，以提高分级精度为目标，对影响脐橙分级机的因素进行试验研究，找出影响分级精度的主要因素及影响趋势，研究分级机对脐橙的分级机理，选择较优工作参数，为分级机结构设计进一步完善提供一定的理论依据。脐橙分级是以其外形尺寸为标准，按大小进行分级。对不同品种核桃的纵径、横径和侧径尺寸进行测量，并对测量结果统计分析。在对尺寸分级研究的基础上，最终确定以脐橙侧径方向尺寸为标准进行分级。分级机采用辊轴式分级法，对脐橙进行连续无级分级。本文阐述了它的结构特点和工作原理，分析了脐橙在辊轴上的运动以及运动速度对分级效果的影响，对分级机的主要工作部件进行设计研究，确定相关参数。关键词：脐橙；变间隙螺距；大小分级；分级精度2NavelClassifiersectionAbstractInrecentyears,particularlywiththedevelopmentofChina'ssouthernJiangxinavelorangecrop,theclassificationaccuracyoforangeincreasinglyhighdemand.Navelorangeclassificationisthefirststeptakenafterprocessing,theimpactoftheresultsofthehierarchicalclassificationandsubsequentprocessingofthesalespricehasgreatly.Navelmechanizationtoachieveclassificationasastartingpointtoimprovetheclassificationaccuracyasthegoal,thefactorsaffectingthenavelgraderpilotstudytoidentifythemainfactorsaffectingtheaccuracyofclassificationandinfluencetrends,researchclassifierforclassificationmechanismnavelchoosetheoptimumoperatingparameters,inordertofurtherimprovethestructuraldesignoftheclassifiertoprovideatheoreticalbasis.Navelclassificationisitsdimensionsasastandard,gradedbysize.Differentvarietiesofwalnutslongitudinalandtransversediametersandsidediametersizewasmeasured,andthemeasurementresultsofthestatisticalanalysis.Basedonthesizeclassificationresearch,inordertofinalizetheorangesideintheradialdirectionsizeasastandardclassification.Classifierusingrollershaftclassificationmethod,thenavelcontinuoussteplessclassification.Thispaperdescribesthecharacteristicsofitsstructureandworkingprinciple,analyzedtheeffectsofthemovementanditsimpactonthemovementspeedgradedorangerollershaft,themainworkingpartsofthegradingmachinedesignstudytodeterminetherelevantparameters.Keywords:orange;variablegappitch;sizeclassification;classificationaccuracy3目录摘要..................................................................................................................................................1目录..................................................................................................................................................3第一章绪论...................................................................................................................................41.1研究目的和意义................................................................................................................41.2国内外研究现状................................................................................................................41.2.1国内外果蔬分级法................................................................................................41.2.1.1按重量分级...............................................................................................41.2.1.2按大小分级...............................................................................................51.2.1.3光电式分级...............................................................................................71.2.2国内外果蔬分级机械发展状况............................................................................81.3存在的问题......................................................................................................................101.4主要研究的内容..............................................................................................................10第二章脐橙分级机的整体结构设计...........................................................................................102.1脐橙分级机的技术参数及结构要求..............................................................................102.1.1脐橙的物理特性..................................................................................................102.1.2技术要求..............................................................................................................112.1.3脐橙分级机的结构要求......................................................................................112.1.4脐橙分级机的工作原理........................................................................................112.2整体设计原则..................................................................................................................122.3脐橙分级机的总体结构设计..........................................................................................122.3.1机架结构设计........................................................................................................122.3.1.1电动机的选用.............................................................................................132.3.1.2减速器的选用.............................................................................................142.3.1.3传动系统的设计.........................................................................................14第三章主要工作部件的结构设计...............................................................................................153.1分级辊的设计..................................................................................................................153.2分级部分链条的设计......................................................................................................183.3主动链轮的设计...........