雙柱式可傾斜壓力機的設計說明書.doc

I摘要用于對坯料進行成型加工的鍛壓機械稱作壓力機。機械壓力機動作平穩(wěn)，工作可靠，廣泛用于沖壓、擠壓、模鍛和粉末冶金等工藝。本次設計題目是雙柱式傾斜壓力機。傾斜式壓力機由支承著床身和壓頭的底座支架，動力電源，壓頭，垂直于床身并作直線運動的機構(gòu)組成。傾斜式壓力機的優(yōu)點是有利于廢料的排出。在設計過程中，通過對沖壓功率的分析，確定了飛輪和電動機功率。并且通過計算確定了各級傳動比和基本尺寸。通過計算確定了系統(tǒng)的最大功率，對帶輪和齒輪機構(gòu)進行了外形尺寸和參數(shù)的計算。同時也對曲柄滑塊機構(gòu)進行結(jié)構(gòu)設計，根據(jù)計算解決了曲軸和后軸的尺寸。關鍵詞：壓力機；功率；機構(gòu)IIAbstractThemachineusedformostcold-workingoperationisknownasapress.Itworkssteadyandiswidelyusedinmanyfields,suchasforgingandpressing.Thisdesigntopicistheinclinablepress.Itconsistsofamachineframesupportingabedandaram,asourceofpower,andamechanismtocausetheramtomoveinlinewithandatrightanglestothebed.Inthedesignprocess,bymeansofanalyzingtherammingpower,theflywheelpowerandtheelectricmotorpoweraredetermined；everyleveloftransmissionratiosandtheconstructionsizearealsodeterminedbycomputerprogram.Havingdeterminedthesystemmaximumworkratewithcomputerprogram,ithascarriedontheexternaldimensionsandtheparametercomputationtothebandpulleyandthegearmechanism.Havingcarriedontheintensity,therigidityexaminationtotheslidecrankmechanism,themechanismdesign,themainaxleandthehindaxlesizeandthelocalizationhasbeendeterminedaswell.Keywords:Press；Power；MechanismIII目錄摘要.IAbstract.II第1章緒論.11.1設計的目的.11.2設計的內(nèi)容.11.3設計要求和注意事項.11.3.1設計要求.11.3.2注意事項.21.4傳動方案的機構(gòu)選型原則.21.5傳動裝置的方案論證.31.6執(zhí)行機構(gòu)方案論證.4第2章執(zhí)行機構(gòu)的設計計算及功率的確定.72.1力、加速度及功率分析.72.2電動機的選擇.9第3章傳動機構(gòu)的設計及計算.123.1帶傳動設計及計算.123.1.1確定設計功率Pca.123.1.2選擇帶型.123.1.3確定帶輪的基準直徑dd1和dd2.123.2帶輪的設計.153.2.1小帶輪的設計.163.2.2大帶輪的設計.173.3齒輪的設計計算.183.3.1齒輪的類型、精度等級、材料和齒數(shù).183.3.2按齒面接觸疲勞強度設計.193.3.3按齒根彎曲疲勞強度的設計.213.3.4幾何尺寸計算.233.3.5齒輪的結(jié)構(gòu)設計.233.4軸的設計.25IV3.4.1后軸的設計.253.4.2曲軸的設計.28第4章軸承、機座及導軌的設計.304.1軸承的設計.304.1.1滾動軸承的選擇及校核.304.1.2曲軸兩端滑動軸承的設計.314.2機座的設計.334.2.1機座材料的選擇.334.2.2機座設計的基本要求.334.2.3肋的布置.334.2.4連接結(jié)構(gòu)設計.334.2.5導軌的功用、分類和應滿足的要求.344.2.6直線滑動導軌的結(jié)構(gòu)設計.34結(jié)論.36致謝.37參考文獻.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