機械設計課程設計（簡體書）

本書共分三個部分：第一部分為機械設計課程設計指導書，主要介紹傳動裝置的總體設計、傳動零件的設計計算、減速器的構造、減速器裝配草圖設計、零件圖設計、裝配工作圖設計、編寫設計計算說明；第二部分為設計資料，包括機械製圖、常用資料與一般標準、螺紋及螺紋連接、鍵連接、滾動軸承、聯軸器、減速器附件、常用傳動零件的結構、極限與配合、形狀與位置公差和表面粗糙度；第三部分為參考圖例，包括減速器裝配工作圖、箱體零件工作圖、軸和輪類零件工作圖。
Takingthedesignofgearreducerasanexample,accordingtothedesignprocessandneeds,thisbookcompiledinstructorforcoursedesignofmechanicaldesign,commondesignmaterialsandreferencelegends.Forthedifficultiesinthedesignprocess,thereareexamplesorillustrationstoillustrateindetail.
Thisbookisdividedintothreepartsand18chapters:partoneisinstructorforcoursedesignofmechanicaldesign.Itincludestheoutlineofcurriculumdesign,theoveralldesignoftransmissiondevice,thedesignandcalculationoftransmissionparts,thestructureofreducer,thedesignofassemblydrawing,thedesignofpartdrawing,thecompilationofcurriculumdesigninstruction,andthesummaryandreplyofcurriculumdesign,etc.Parttwoisdesigndata.Itincludescommondataandgeneralspecification,connectorsandfasteners,rollingbearings,coupling,sealingdevice,reduceraccessories,motor,toleranceandsurfaceroughness,precisionofinvolutecylindricalgear,etc.Partthreeiscurriculumdesignreferencelegend.Itincludesreducerassemblydrawingandpartdrawingreferenceillustrations.
Thisbookcanbeusedasatextbookofcoursedesignofmechanicaldesignformechanicalmajorsinengineeringcolleges,especiallyforforeignstudents.

PARTⅠ
INSTRUCTORFOR
COURSEDESIGN..................................
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Chapter1Introduction.....................................................................................
-8-

1.1Purposesofcoursedesign.......................................................................
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1.2Contentsofcoursedesign.......................................................................
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1.2.1Subject...............................................................................................
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1.2.2Contents.............................................................................................
-9-

1.3Stepsofcoursedesign...........................................................................
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1.4Requirementsofcoursedesign............................................................
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1.5Mattersneedingattentionintheprocessofcoursedesign.................
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Chapter2Overalldesignoftransmissiondevice.........................................
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2.1Determinationoftransmissionscheme................................................
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2.1.1Requirementsoftransmissionschemeshouldbesatisfied..............
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2.2Selectionofmotor..................................................................................
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2.2.1Selectionofmotortype...................................................................
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2.2.2Selectionofmotorpower...............................................................
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2.2.3Determinationofmotorspeed.......................................................
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2.3Distributionoftransmissionratio........................................................
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2.4Dynamicparametersdesignoftransmissiondevice...........................
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2.4.1Rotationalspeedofeachshaft.......................................................
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2.4.2Inputpowerandtorqueofeachshaft..........................................
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Chapter3Designandcalculationoftransmissionparts.............................
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3.1Designoftransmissionpartsoutsidereducer.....................................
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3.1.1OrdinaryV-beltdrive.....................................................................
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3.1.2Selectionofcoupling.......................................................................
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3.2Designoftransmissionpartswithinreducer......................................
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3.2.1Selectionofgearmaterialsandheattreatmentmethods.............
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3.2.2Structureofgears...........................................................................
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3.2.3Centerdistanceofgeardrive.........................................................
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3.2.4Parametersofgear.........................................................................
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3.2.5Exampleofthedeterminationofgeargeometricparameters.....
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Chapter4Structureofreducer.....................................................................
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4.1Gear,shaftandbearingassembly........................................................
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4.2Box..........................................................................................................
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4.3Reduceraccessories...............................................................................
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Chapter5Reducerassemblysketchdesign.................................................
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5.1Overviewofreducerassemblydrawingdesign..................................
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5.1.1Designcontentsandstepsofreducerassemblydrawing............
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5.1.2Preparationofdesignassemblydrawing......................................
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5.1.3Mattersneedingattentioninassemblydrawingdesign...............
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5.2Drawtheoutlineofreducerassemblypreliminarily..........................
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5.2.1Determinethewidthofthebearingboreandthewidthofthereducerboxonthetopview
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5.3Designofshaftandshaftingparts.......................................................
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5.3.1Determinethediametertheextendedsectionoftheshaftpreliminarily
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5.3.2Structuraldesignofshafts.............................................................
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5.4Checkingcalculationofshaft,bearingandkeyconnection..............
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5.5Structuraldesignofgear......................................................................
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5.6Combinationdesignofrollingbearings..............................................
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5.7Designofreducerboxandaccessories................................................
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5.7.1Structuraldesignofbox.................................................................
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5.7.2Structuraldesignofboxaccessories..............................................
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5.8Perfecttheassemblydrawingofreducer.............................................
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5.9Inspectionofreducerassemblydrawing..............................................
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Chapter6Designofreducerpartsdrawing................................................
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6.1Designrequirementsofpartsdrawing................................................
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6.1.1Basicview,scale,localview............................................................
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6.1.2Dimensioningofpartdrawing.......................................................
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6.1.3Labelsurfaceroughnessofthepart.............................................
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6.1.4Labelgeometrictolerances.............................................................
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6.1.5Markdatum....................................................................................
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6.1.6Technicalrequirement....................................................................
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6.1.7Titlebar...........................................................................................
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6.2Designofshaftpartdrawing...............................................................
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6.2.1View.................................................................................................
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6.2.2Dimensioning...................................................................................
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6.2.3Labelingoftolerancesandsurfaceroughness.............................
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6.3Designofgearpartdrawing................................................................
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6.3.1View.................................................................................................
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6.3.2Dimensioning...................................................................................
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6.3.3Markingofsurfaceroughness.......................................................
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6.3.4Meshingcharacteristics..................................................................
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6.3.5Technicalrequirements..................................................................
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6.4Designofboxpartdrawing..................................................................
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6.4.1View.................................................................................................
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6.4.2Dimensioning...................................................................................
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6.4.3Labelingoftolerances....................................................................
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6.4.4Technicalrequirements..................................................................
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Chapter7Preparationofcoursedesigninstructions..................................
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7.1Contentsandrequirementsofinstructions.........................................
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7.2Theoutlineoftheinstructions..............................................................
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7.2.1Theoutlinemodeloftheinstructions............................................
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Chapter8Summaryanddefenseofcurriculumdesign.............................
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8.1Summaryofcurriculumdesign...........................................................
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8.2Formofdefense.....................................................................................
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8.3Questionsofthedefense.......................................................................
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8.3.1Theprincipleofraisingquestions.................................................
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8.3.2Questions.........................................................................................
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PARTⅡ
DESIGNDATA..................................................................................
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Chapter9Mechanicaldrawing....................................................................
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Chapter10Commondataandgeneralspecification.................................
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Chapter11Connectorsandfasteners..............................................................
108

11.1Threadconnection.................................................................................
108

11.2Flatkeyconnection................................................................................
113

Chapter12Rollingbearings..............................................................................
115

Chapter13Coupling..........................................................................................
118

Chapter14Sealingdevice..................................................................................
119

Chapter15Reduceraccessories.......................................................................
121

15.1Observationholeandobservationholecover......................................
121

15.2Ventilator................................................................................................
121

15.3Bearingcover.........................................................................................
122

15.4Oilbaffle.................................................................................................
122

15.5Boltforopeningbox..............................................................................
123

15.5Plugscrew..............................................................................................
124

15.6Oillevelindicator...................................................................................
124

Chapter16Motor..............................................................................................
125

Chapter17Toleranceandsurfaceroughness.................................................
126

17.1Tolerancenounsandcodedescription.................................................
126

17.2Standardtolerancevalues,limitdeviationsforshaftsandholes.......
126

17.2Formtoleranceandpositiontolerance.................................................
131

Chapter18Involutecylindricalgear............................................................
135

PARTⅢ
REFERENCEDRAWINGS................................................................
150

REFERENCES........................................................................................................
154