双柱式可倾斜压力机的设计说明书.doc -- 12 元

I摘要用于对坯料进行成型加工的锻压机械称作压力机。机械压力机动作平稳，工作可靠，广泛用于冲压、挤压、模锻和粉末冶金等工艺。本次设计题目是双柱式倾斜压力机。倾斜式压力机由支承着床身和压头的底座支架，动力电源，压头，垂直于床身并作直线运动的机构组成。倾斜式压力机的优点是有利于废料的排出。在设计过程中，通过对冲压功率的分析，确定了飞轮和电动机功率。并且通过计算确定了各级传动比和基本尺寸。通过计算确定了系统的最大功率，对带轮和齿轮机构进行了外形尺寸和参数的计算。同时也对曲柄滑块机构进行结构设计，根据计算解决了曲轴和后轴的尺寸。关键词压力机功率机构IIAbstractThemachineusedformostcoldworkingoperationisknownasapress.Itworkssteadyandiswidelyusedinmanyfields,suchasforgingandpressing.Thisdesigntopicistheinclinablepress.Itconsistsofamachineframesupportingabedandaram,asourceofpower,andamechanismtocausetheramtomoveinlinewithandatrightanglestothebed.Inthedesignprocess,bymeansofanalyzingtherammingpower,theflywheelpowerandtheelectricmotorpoweraredeterminedeveryleveloftransmissionratiosandtheconstructionsizearealsodeterminedbycomputerprogram.Havingdeterminedthesystemmaximumworkratewithcomputerprogram,ithascarriedontheexternaldimensionsandtheparametercomputationtothebandpulleyandthegearmechanism.Havingcarriedontheintensity,therigidityexaminationtotheslidecrankmechanism,themechanismdesign,themainaxleandthehindaxlesizeandthelocalizationhasbeendeterminedaswell.KeywordsPressPowerMechanismIII目录摘要.....................................................................................................................IAbstract................................................................................................................II第1章绪论........................................................................................................11.1设计的目的...........................................................................................11.2设计的内容...........................................................................................11.3设计要求和注意事项...........................................................................11.3.1设计要求....................................................................................11.3.2注意事项....................................................................................21.4传动方案的机构选型原则...................................................................21.5传动装置的方案论证...........................................................................31.6执行机构方案论证...............................................................................4第2章执行机构的设计计算及功率的确定....................................................72.1力、加速度及功率分析.......................................................................72.2电动机的选择.......................................................................................9第3章传动机构的设计及计算......................................................................123.1带传动设计及计算.............................................................................123.1.1确定设计功率Pca....................................................................123.1.2选择带型..................................................................................123.1.3确定带轮的基准直径dd1和dd2..............................................123.2带轮的设计.........................................................................................153.2.1小带轮的设计..........................................................................163.2.2大带轮的设计..........................................................................173.3齿轮的设计计算.................................................................................183.3.1齿轮的类型、精度等级、材料和齿数...................................183.3.2按齿面接触疲劳强度设计......................................................193.3.3按齿根弯曲疲劳强度的设计..................................................213.3.4几何尺寸计算..........................................................................233.3.5齿轮的结构设计......................................................................233.4轴的设计.............................................................................................25IV3.4.1后轴的设计..............................................................................253.4.2曲轴的设计..............................................................................28第4章轴承、机座及导轨的设计..................................................................304.1轴承的设计.........................................................................................304.1.1滚动轴承的选择及校核..........................................................304.1.2曲轴两端滑动轴承的设计......................................................314.2机座的设计.........................................................................................334.2.1机座材料的选择......................................................................334.2.2机座设计的基本要求..............................................................334.2.3肋的布置..................................................................................334.2.4连接结构设计..........................................................................334.2.5导轨的功用、分类和应满足的要求......................................344.2.6直线滑动导轨的结构设计......................................................34结论....................................................................................................................36致谢.....................................................................................................................37参考文献..............................................................................................................38VContentAbstract..................................................................................................................IChapter1Introduction.....................................................................................11.1Designpurpose......................................................................................11.2Designofthecontent.............................................................................11.3DesignRequirementsandConsiderations.............................................11.3.1DesignRequirements..................................................................11.3.2DesignConsiderations................................................................21.4TransmissionSchemeinstitutionalprincipleofselection.....................21.5Geardemonstrationprogram.................................................................31.6Implementingagenciesdemonstrationprogram....................................4Chapter2Theimplementationofthedesigncalculations.............................72.1Theanalysisofstrength,accelerationandpower..................................72.2Thechoiceofthemotor.........................................................................9Chapter3Designandcalculationoftransmission.......................................123.1Beltdrivedesignandcalculation........................................................123.1.1DeterminethedesignpowerPca..............................................123.1.2Selectthezonetype..................................................................123.1.3Determinethereferencediameterofpulleydd1anddd2...........123.2Pulleydesign.......................................................................................153.2.1Thedesignofsmallpulley.......................................................163.2.2Pulleystructuredesignandselectthezonetype......................173.3Designandcalculationsofthegear.....................................................183.3.1Thetype,accuracyclass,materialandquantityofgear...........183.3.2Toothcontactfatiguedesign.....................................................193.3.3Traceofdesignaccordingtoothrootbendingstrength............213.3.4Geometricsizedimensions.......................................................233.3.5Gearstructuraldesign...............................................................233.4Designoftheshaft...............................................................................253.4.1Designofthebehindaxle.........................................................253.4.2Designofthebentaxle.............................................................28