货车的设计_布置各性能参数的选定VIP免费

本科毕业设计(论文)题目：重型矿用自卸车总布置设计学院：机电工程学院专业：机械工程及自动化姓名：曹永指导教师：王玉林教授2008年6月5号摘要随着我国经济的快速发展，矿山工业也快速发展，对矿用自卸车的需求量也越来越大，为适应这一情况国内很多厂家开始设计矿用自卸车。本论文对矿用自卸车发动机、变速器以及行驶系统的主要部件进行了选择，且对矿用自卸车进行了总布置设计，其中包括对发动机、变速器以及传动系统进行了布置，重点是传动系统，使它与发动机、变速器能达到最优配合。此外，还对矿用自卸车的动力性和燃油经济性进行了分析计算，以确保自卸车既有足够的动力，又能够有好的燃油经济性。关键词爬坡度传动系动力性经济性AbstractWithChina'srapideconomicdevelopment,miningindustryhasdevelopedrapidly,theMineDumpTruckdemandisalsogrowing,inordertomeetthesituation,manydomesticmanufacturersbegandevelopingthedesignofMineDumpTruck.Inthispaper,ImakeachoiceoftheMineDumpTruckengine,transmissionandthemaincomponentsoftrafficsystem,anddescribethelayoutdesignofMineDumpTruckindetail,fixuptheengine,transmissionanddrivesystem,withafocusontransmissionSystemsothatitcanachieveoptimalcorrespondstotheengineandtransmission.Inaddition,thedrivingforceoftheMineDumpTruckandfueleconomywereanalyzed,toensurethatthedumptruckhasenoughpowerandgoodfueleconomy.KeywordsClimbingdegreeTransmissionDynamicEconomy目录第一章绪论...................................................................................................................11.1课题的提出及意义............................................11.2国内外自卸车的现状..........................................21.2.1国外自卸车概况.........................................21.2.2国内自卸车概况.........................................31.3主要研究内容和方法..........................................3第二章矿用自卸车总布置设计方案...........................................................................42.1总布置概述..................................................42.1.1设计目的...............................................42.1.2设计原则...............................................52.1.3设计流程...............................................52.2自卸车形式的选择............................................62.2.1轴数的选择.............................................62.2.2驱动形式的选择.........................................62.2.3自卸车的布置形式.......................................62.2.4轮胎的选择............................................62.3自卸车主要参数的选择........................................72.3.1自卸车主要尺寸参数的确定...............................72.3.2自卸车质量参数的确定...................................82.3.3自卸车性能参数的确定...................................92.4发动机的选择...............................................102.4.1发动机形式的选择......................................102.4.2发动机主要性能指标的选择..............................112.5传动系参数的确定...........................................122.5.1最小传动比的确定......................................122.5.2最大传动比的确定......................................122.5.3变速器档位数的确定....................................132.6自卸车的总体布置...........................................132.6.1整车布置的基准线—零线的确定..........................132.6.2各部件的布置..........................................142.7整车质量、轴荷分配和质心高度的计算........................152.7.1空车状态下整车质量、轴荷分配和质心高...