偏心链轮不等速机构设计论文[带图纸].doc

编号无锡太湖学院毕业设计（论文）题目偏心链轮不等速机构设计信机系机械工程及自动化专业学号学生姓名指导教师（职称副教授）（职称）2013年5月25日II无锡太湖学院本科毕业设计（论文）诚信承诺书本人郑重声明所呈交的毕业设计（论文）偏心链轮不等速机构设计是本人在导师的指导下独立进行研究所取得的成果，其内容除了在毕业设计（论文）中特别加以标注引用，表示致谢的内容外，本毕业设计（论文）不包含任何其他个人、集体已发表或撰写的成果作品。班级机械93学号0923103作者姓名2013年5月25日III摘要本研究主要包括偏心链轮的结构改进设计，并设计出试验装置，进行设计工艺参数的试验研究。在整机设计中，通过对偏心链轮总体方案的分析，编制了工作循环图，确定主要装置（偏心链轮，从动轮，张紧轮，调节机构）之间的相互配合关系完成了偏心链轮的结构改进设计和理论分析及其主要参数的确定对横封装置进行了改进设计，提出适应包装袋长度可连续变化的翻领成型器，扩大了偏心链轮的使用范围，并进行了理论研究，本文的研究对其它偏心链轮机械的设计和开发有着积极的指导意义。利用设计的试验装置，确定了偏心链轮传动的特性，即匀速度传入主动轮偏心链轮中，由于偏心链轮各处的中心距不等，呈现增大减小的规律运动，所以滚子链的瞬时速度也不一样，其运动类似于正弦运动，传到从动轮上的速度也就是正弦运动，此运动方式适用于包装机，包装机在包装物品时，就需要快慢不一的速度。本研究结果对包装材料的生产厂家、偏心链轮械生产厂家、机械用户以及科研人员具有十分重要的意义。关键词偏心链轮横封装置包装IVAbstractThisstudyincludedthemodifiedstructuredesignoftheeccentricsprocket,thefiniteelementanalysisandsolidmodeler.Besides,designedtesterandtestedsealingquality.Intheentiremachinedesign,establishedworkingcycleandconformedworkinrelationsofmainfixturesfeeding,forming,retractor,sealing,drivingthroughanalysisofeccentricsprocketoverallplancompletedthemodifiedstructuredesignoftheformingfillingsealingeccentricsprocketandconformedthemainparameters.Inthispaper,designedthehorizontalsealingfixturesandadvancednewformingfixturewhichcanadjustthepackaginglengthandextendedtheuseablerangeoftheeccentricsprocketandstudied.Atthesametime,offeredamethodofparallelmeasurefeedingandfoundedvibrationfeedingfixturesofoscillatorydifferentialequation.Thisstudycandirectthedesignandexploitationofotherbageccentricsprocketactively.Usingthetestercarriesonthepackagesealingtest,thetensiletestandtheendurestresstestthatthetestswerebasedonthenationalstandards,experimenteddataandtheresultsindicatesealingintensityconformstothenationalstandard.Throughdataanalysisobtainedthepermitspackingsealingtemperaturerangeandtherelationsofthesealingintensityofthehorizontalfixturesandtheverticalsealingfixtures,timeandtemperatureandthebestpackingmaterialsealingcondition.KeywordseccentricsprockethorizontalsealingpackingmachineV目录摘要...........................................................................................................................................IIIAbstract.........................................................................................................................................IV目录................................................................................................................................................V1绪论.............................................................................................................................................11.1本课题的研究内容和意义..................................................................................................11.2国内外的发展概况..............................................................................................................11.3本课题应达到的要求..........................................................................................................12总体方案设计.............................................................................................................................32.1偏心链轮机构的组成..........................................................................................................32.2偏心链轮运动规律的分析..................................................................................................52.2.1偏心链轮机构工作原理................................................................................................52.3偏心链轮各基本参数的确定..............................................................................................92.3.1主动链轮的偏心距的计算............................................................................................92.3.2链轮的节圆半径..........................................................................................................112.3.3主从动链轮传动轴的中心距......................................................................................122.4轴承的选择........................................................................................................................122.4.1轴的设计校核..............................................................................................................122.4.2轴承的润滑及密封......................................................................................................153热封装置设计...........................................................................................................................183.1热封材料及封口方法........................................................................................................183.2纵封滚轮的设计及计算....................................................................................................183.3横封装置设计....................................................................................................................193.4封合调整............................................................................................................................224包装机的设计...........................................................................................................................244.1包装机工作原理及功能....................................................................................................244.1.1功能要求......................................................................................................................244.1.2主要构成及工作原理..................................................................................................244.1.3执行机构的动作配合..................................................................................................255链轮的设计...............................................................................................................................265.1链轮设计与机械加工........................................................................................................265.1.1常见链轮的形状与结构..............................................................................................265.1.2链轮材料的选择..........................................................................................................265.1.3链轮的基本参数..........................................................................................................265.1.4链轮齿形的几何形状与设计原则..............................................................................265.1.5链轮设计与加工..........................................................................................................275.1.6刀具设计......................................................................................................................286结论与展望...............................................................................................................................30