挖掘装载机毕业设计说明

河北工程大学毕业设计I摘要本文设计是一种挖掘装载机的挖掘装置，在为工业、民用上有特殊用途的挖掘装载机，它可以用于煤矿井下狭小空间清理、装载、运输等工作，也可用于冶金、矿山、隧道建设等场合的挖掘装载工作。在本设计中，通过对国内外现有技术的了解和分析，利用任务书上所给定的挖掘机铲斗额定装载载荷，先计算出铲斗的斗容，而后选用标准容量铲斗，根据所选出的标准铲斗，算出挖掘机的最大铲取阻力、最大卸载高度、最小卸载距离等一些设计必需用到的量。通过对工作机构上九个铰接点位置的确定来设计出动臂模型及动臂上各点的受力，然后计算出举臂油缸和转斗油缸的内径、活塞杆的杆径，选出标准的液压缸。运用CAD制图。关键词：铲斗、液压缸、动臂、挖掘机河北工程大学毕业设计IIAbstractInthispaper,thedesignisamini-excavators,asfortheindustry,therearespecial-purposecivilianloadingmachinery,itcanbeusedinundergroundcoalminestoclearanarrowspace,loading,transport,etc.,canalsobeusedformetallurgy,mining,occasions,suchastunnelconstructionexcavationworkload.Inthisdesign,bothathomeandabroadthroughtheunderstandingofexistingtechnologyandanalysis,theuseoftaskbooksgivenbytheexcavatorbucketloadratedload,calculatethefirstbucketofthebucketcapacity,andthenchoosethestandardsizeofthebucket,electedinaccordancewithstandardbucket,tocalculatethelargestexcavatorshovelaccessresistance,themaximumunloadingheight,minimumdistance,suchasunloadingthedesignusedinthevolumenecessary.Throughtheworkofnineinstitutionstodeterminethelocationofhingepointsouttodesignthemodelandthemovingarmarmstresspoints,andthencalculatethefueltankandtofightthediameterofthefueltank,theroddiameterrod,theelectionastandardhydrauliccylinders.Keywords:bucket,hydrauliccylinder,boom,excavator河北工程大学毕业设计III目录摘要..............................................................................................................................IAbstract.......................................................................................................................II前言.....................................................................................................................-1-第一章挖掘装载机整机概论...........................................................................-3-1.1挖掘装载机定义...................................................-3-1.2挖掘装载机用途的大体概述.........................................-3-1.3挖掘装载机的基本结构.............................................-4-1.4国内、外挖掘装载机的市场现状.....................................-4-第二章反铲装置的设计....................................................................................................-7-2.1挖掘装载机工作装置典型工况分析确定..............................-7-（1）铲斗油缸挖掘................................................-7-（2）斗杆油缸挖掘................................................-8-（3）动臂油缸挖掘................................................-8-2.2、挖掘装载机工作装置的基本参数的选择.............................-8-（1）原始几何参数的给定..........................................-8-（2）斗行参数的选择..............................................-9-（3）当工作装置处于最大挖掘半径时...............................-11-（4）、满斗处于最大高度时，动臂提升力矩的校核...................-13-(5)在最大卸载高度工况下........................................-15-2.3、油缸基本参数的选择和计算......................................-16-（1）动臂油缸参数的确定.........................................-16-（2）斗杆油缸参数的确定.........................................-18-（3）铲斗油缸参数的确定.........................................-19-第三章、挖掘装置受力计算和强度计算....................................................................-21-3.1、挖掘阻力的计算................................................-21-（1）铲斗挖掘阻力的计算.........................................-21-（2）斗杆挖掘阻力计算...........................................-22-3.2、工作液压缸的理论挖掘力.......................................-22-（1）铲斗挖掘时，铲斗缸的理论挖掘力.............................-22-（2）斗杆挖掘时，斗杆油缸的理论挖掘力...........................-24-3.3、整机理论挖掘力...............................................-24-(1)斗杆挖掘....................................................-24-(2)铲斗得运动分析..............................................-28-河北工程大学毕业设计IV第四章主要部件反铲的三维造型............................................................................-34-4.1Pro/E简介....................................................-34-4.2生成零件实体..................................................-35-（1）利用三维参数化设计........................................-35-（2）建立各种特征的方法步骤....................................-35-4.3相关部件的装配...............................................-36-4.4三维实体造型实例.............................................-37-⑴动臂三维实体造型.............................................-37-⑵铲斗三维实体造型.............................................-42-第五章工作装置的建模和仿真............................................................错误!未定义书签。5.1工作装置建模.......................................................................错误!未定义书签。（1）启动ADAMS/View程序..................................................错误!未定义书签。（2）检查和设置建模基本环境.............................................错误!未定义书签。（3）工作装置的几何建模和施加约束..................................错误!未定义书签。5.2、ADAMS对挖掘装置的运动学仿真分析..................................错误!未定义书签。（1）动臂油缸挖掘.................................................................错误!未定义书签。（2）斗杆油缸挖掘.................................................................错误!未定义书签。（3）铲斗油缸挖掘.................................................................错误!未定义书签。第六章总结.............................................................................................................错误!未定义书签。参考文献...........................................................................