离合器设计说明书85439

沈阳理工大学应用技术学院课程设计汽车离合器设计XX专业名称：车辆工程课程名称：课程设计指导教师(职称)：XXX(XX)完成日期：20XX年X月X日20XX年X月摘要汽车离合器位于发动机和变速箱之间的飞轮壳内，用螺钉将离合器总成固定在飞轮的后平面上，离合器的输出轴就是变速箱的输入轴。在汽车行驶过程中，驾驶员可根据需要踩下或松开离合器踏板，使发动机与变速箱暂时分离和逐渐接合，以切断或传递发动机向变速器输入的动力。其功用为：（1）使汽车平稳起步；（2）中断给传动系的动力，配合换档；（3）防止传动系过载。膜片弹簧离合器是近年来在轿车和轻型汽车上广泛采用的一种离合器，它的转矩容量大而且较稳定，操作轻便，平衡性好，也能大量生产，对于它的研究已经变得越来越重要。此设计说明书详细的说明了轻型汽车膜片弹簧离合器的结构形式，参数选择以及计算过程。本文主要是对载重2吨轻型汽车的膜片式弹簧离合器进行设计。根据车辆使用条件和车辆参数，按照离合器系统的设计步骤和要求，主要进行了以下工作：选择相关设计参数主要为：摩擦片外径D的确定，离合器后备系数的确定，单位压力p的确定。并进行了总成设计主要为：分离装置的设计，以及从动盘设计（从动盘毂的设计）和圆柱螺旋弹簧设计等。关键词:离合器；膜片弹簧；从动盘；压盘；摩擦片ABSTRACAutomobileClutchintheengineandgearboxbetweentheflywheelshell,withscrewwillbefixedintheclutchassemblyaftertheplaneoftheflywheel,clutchgearboxoutputshaftistheinputshaft.Intheprocessofmovingvehicle,thedrivermayneedPedalorreleasetheclutchpedalsothattheengineandgearboxtemporaryseparationandprogressivejoint,tocutofftheengineortransmissiontothetransmissioninputpower.Itsfunctionas:(1)thecarasmoothstart,(2)tointerruptthetransmissionofpowertomeettheshift,(3)topreventtransmissionoftheoverload.InrecentyearsthecaspringclutchisakindofclutchthatwidelyAdoptedinvehicleandlightvehicle.IthasgreatcapacityoftorqueAndmorestabley,manipulateeasyandconvenient,wellequilibrium,Andalsocanproducebatch.sotheresearchoftheclutchismoreandmoreimportant.Thisdesignmanualelaboratedontheconstructionform,parametrechooseandprocessofcalculateofthelightvehicle.Thispaperisthesingle-carthecaspringclutchdesign.Accordingtotrafficconditionsandvehicleparameters,inaccordancewiththeclutchsystemofstepsandrequirements,mainlyforthefollowingwork.Selectthedesignforthemainparameters:thedeterminationoffriction-diameterD,thedeterminingfactorclutchreserve,thepressureontheunitsidentifiedP.Andthedesignofthemainassembly:theseparationdevicedesign,setdesignandfollower(thehub-drivendesign)andcylindricalcoilspringdesign,andsoon.Keyword:clutch,thecaspring,drivenplate,frictiondisc目录摘要...........................................................................................................................................IABSTRACT................................................................................................................................I第1章离合器设计的目的及离合器概述............................................................................11.1离合器设计的基本要求..............................................................................................11.2技术参数及论文要求..................................................................................................21.3膜片弹簧离合器结构..................................................................................................21.4膜片弹簧离合器的优点..............................................................................................31.5膜片弹簧离合器的工作原理......................................................................................3第2章离合器摩擦片参数的确定........................................................................................42.1摩擦片参数的选择......................................................................................................42.1.1初选摩擦片外径D、内径d、厚度b...............................................................42.1.2后备系数β........................................................................................................42.1.3离合器传递的最大静摩擦力矩TC...................................................................52.1.4单位压力P0.......................................................................................................52.2离合器基本参数的校核.............................................................................................62.2.1最大圆周速度....................................................................................................62.2.2单位摩擦面积传递的转矩c0T..........................................................................62.2.3单位压力0P........................................................................................................62.2.4单位摩擦面积滑磨功........................................................................................8第3章膜片弹簧的设计......................................................................................................103.1膜片弹簧的基本参数的选择....................................................................................103.1.1截锥高度H与板厚h比值hH和板厚h的选择.............................................103.1.2自由状态下碟簧部分大端R、小端r的选择和rR比值...............................103.1.3膜片弹簧起始圆锥底角的选择................................................................103.1.4分离指数目n的选取......................................................................................103.1.5切槽宽度δ1、δ2及半径er.........................................................................103.1.6压盘加载点半径R1和支承环加载点半径r1的确定....................................83.1.7膜片弹簧材料....................................................................................................93.2膜片弹簧的弹性特性曲线..........................................................................................9第4章扭转减振器的设计..................................................................................................114.1扭转减振器主要参数......