机械原理课程设计说明书——自卸车倾卸机构创新设计学院：机械工程学院班级：组员：指导教师：二〇一三年一月四日摘要我们组选择自卸车倾卸机构的创新设计作为课程设计的题目.为了完成课程设计,我们首先查找了关于自卸车倾卸机构的发展史,了解了自卸车的发展历程与现状.然后我们查找了关于自卸的国内外专利,并分析其机构,画出机构简图.知道了自卸车有各种不同的机构,并了解了现在常用的自卸机构以及自卸机构未来的发展趋势.为了创新设计,我们现场对常见自卸车的自卸机构拍照.分析机构,并进行了运动链的一般化,数综合,特定化和具体化等一系列过程.最后得出27个可能的机构简图.在进行比较时,我们选择了一个不是当前流行类型的机构简图作为自己的创新设计.按对自卸车较为常见的要求:车斗最大倾角,机构纵深,液压缸伸缩距离,结构合理等,我们设计了创新机构的尺寸.在用inventor对其进行运动仿真后,发现结构运动平稳.然后我们又用matlab对机构进行建模,仿真.得出机构的角速度,角加速度等图形.发现机构角速度变化幅度不大,符合仿真动画,满足实际要求,因此,我们确定了我们的创新设计符合要求并将其作为最终的课程设计的方案.AbstractOurgroupchoosesdumptruckdumpingmechanisminnovationdesignascurriculumdesignquestions.Inordertocompletethecoursedesign,wefirstlookforthedumptruckdumpingmechanismaboutthehistoryofthedumptruck,understandthedevelopmentcourseandpresentsituation.Thenwefindaboutdumpingdomesticandforeignpatents,andanalyzesthemechanism,drawthemechanismdiagram.Knowthedumptruck,thereareallkindsofdifferentorganizations,andtounderstandthepresentcommonlyusedself-discharginginstitutionsandself-dischargingmechanismthefuturetrendofdevelopment.Inordertocreativedesign,oursitetothecommondumper'sself-dischargingmechanismphotos.Bodyanalysisandthekinematicchainofgeneralization,severalcomprehensive,specializationandshapeandaseriesofprocessthat.Atlast,wegive27possiblemechanismdiagrams.Incomparison,wechoseanotcurrentpopulartypeofmechanismdiagramastheirinnovativedesign.Accordingtotherequirementsofthemorecommontodumptruck,carbucketmaximumAngleofinclination,theagencydepth,hydrauliccylinderexpansiondistance,reasonablestructureandsoon,wedesigntheinnovationorganizationinthesizeoftheinventor.Themotionsimulation,foundthatthesmoothmovementstructure.ThenweuseMATLABtomechanismmodeling,simulation.Drawmechanismofangularvelocity,angularaccelerationandangularvelocitychangegraphics.Findinstitutionsrangeisnottoomuch,inlinewiththesimulationanimation,meetthepracticalrequirements,therefore,wedetermineourinnovativedesignmeettherequirementsastheirfinalcoursedesignscheme.目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc34493