双柱式可倾斜压力机的设计说明书.doc

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IIAbstractThemachineusedformostcold-workingoperationisknownasapress.Itworkssteadyandiswidelyusedinmanyfields,suchasforgingandpressing.Thisdesigntopicistheinclinablepress.Itconsistsofamachineframesupportingabedandaram,asourceofpower,andamechanismtocausetheramtomoveinlinewithandatrightanglestothebed.Inthedesignprocess,bymeansofanalyzingtherammingpower,theflywheelpowerandtheelectricmotorpoweraredetermined；everyleveloftransmissionratiosandtheconstructionsizearealsodeterminedbycomputerprogram.Havingdeterminedthesystemmaximumworkratewithcomputerprogram,ithascarriedontheexternaldimensionsandtheparametercomputationtothebandpulleyandthegearmechanism.Havingcarriedontheintensity,therigidityexaminationtotheslidecrankmechanism,themechanismdesign,themainaxleandthehindaxlesizeandthelocalizationhasbeendeterminedaswell.Keywords:Press；Power；MechanismIII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.2