50吨级汽车起重机底盘关键技术研究

分类号:TH1210710-2010225024专业硕士学位论文50吨级汽车起重机底盘关键技术研究徐平涛导师姓名职称郁录平教授申请学位级别硕士专业学位类别及领域名称机械工程论文提交日期2012年6月1日论文答辩日期2012年5月28日学位授予单位长安大学StudyontheKeyTechnologyof50-tontruckcraneADissertationSubmittedfortheDegreeofMasterCandidate：XuPingtaoSupervisor：Prof.YuLupingChang’anUniversity,Xi’an,ChinaI摘要汽车起重机是各种工程建设广泛应用的重要设备，在基础设施建设中发挥着重要作用。随着改革开放的不断深入和国民经济的迅速发展，我国的基础设施建设力度正逐渐加大，汽车起重机的市场需求将会大大增加。本篇论文对汽车起重机底盘的总体结构进行了研究，利用当前阶段用于汽车起重机的新技术和新的设计理念，对50吨级汽车起重机底盘进行初步的总体设计。本文还对底盘的动力系统、传动系统、行驶系统、转向系统、悬架系统、车架等各子系统的设计进行了分析，在总结了当前这些关键系统的在设计研发上已获得的成果的基础上，对50吨级汽车起重机底盘各子系统都做了设计计算。论文具体内容包括：按照相关标准设计了车辆底盘的主要尺寸，并根据车辆底盘总体布置原则对底盘各个子系统和部件做出合理布置；采用双动力系统，以便获得更好的燃油经济性和环境友好性；对离合器、变速箱、驱动桥、平衡悬架等各部件的相关参数进行了计算；为了保证车辆理想的转角关系并避免转向系统与悬架系统的运动干涉，为双桥转向系统建立了数学模型进行优化。关键字：汽车起重机，底盘，总体布置，平衡悬架，双桥转向机构IIAbstractThetruckcraneisimportantequipmentinvariousengineeringconstruction,itplaysanimportantroleintheinfrastructure.Withthecontinuouslydeepeningofreformandopeningandtherapidlydevelopmentofnationaleconomy,China'sinfrastructureconstructionisincreasingyearbyyear,marketdemandoftruckcranewillgreatlyincrease.Inthispaper,theauthorsconductedadetailedstudyontheoverallstructureofthetruckcranechassis,andmakeaninitialoveralldesignfor50-tontruckcranechassisbyusingnewtechnologiesandnewdesignconcept.Theauthorsalsoconductedadetailedstudyonthepowersystem,transmissionsystem,drivingsystem,steeringsystems,suspensionsystems,frameofthetruckcranechassis,summarizedtheobtainedachievementonthedesignofthesekeysystems,madedetaileddesignforeachsubsystemofthe50-tontruckcranechassis.Thespecificcontentofthepaperincluded:Designedthemaindimensionsofthechassisinaccordancewiththerelevantstandards,andmadeareasonablelayoutforthevarioussubsystemsandcomponentsofthechassisinaccordancewiththeprincipleoftheoveralllayoutofthevehiclechassis;UseddualpowersysteminordertogetbetterfuelEconomicandenvironmentalfriendliness;Detailedcalculatedtherelevantparametersoftheclutch,transmission,driveaxle,balancedsuspension.Establishedamathematicalmodelforthesteeringsystemandoptimizeditinordertoensuretheidealcornerrelationshipandtoavoidthemovementinterferencebetweenthesteeringsystemandsuspensionsystem.Keywords:Truckcrane;chassis;overalllayout;balancesuspensionIII目录第一章绪论............................................................................................................................11.1移动式起重机的发展历史..........................................................................................11.1.1国外移动式起重机的发展...............................................................................11.1.2国内移动式起重机的发展...............................................................................51.2移动式起重机的分类..................................................................................................61.3本文主要研究内容和意义..........................................................................................91.3.1主要研究内容...................................................................................................91.3.2研究意义.........................................................................................................10第二章底盘总体参数的确定................................................................................................112.1底盘主要目标性能参数............................................................................................112.2整机质量估计及质量参数的确定............................................................................112.3底盘主要尺寸参数的确定........................................................................................122.4本章小结....................................................................................................................13第三章底盘总体布置............................................................................................................143.1底盘总体布置............................................................................................................143.1.1底盘总体设计和布置原则.............................................................................143.1.2传动系的布置形式.........................................................................................143.1.3底盘总体布置草图.........................................................................................153.2本章小结....................................................................................................................16第四章底盘各系统的设计与选型........................................................................................174.1发动机的选型及布置................................................................................................174.1.1整车动力方案的确定.....................................................................................174.1.2发动机有关参数的计算.................................................................................174.1.3发动机的选型.................................................................................................184.2传动系的设计............................................................................................................204.2.1离合器的选型和布置.....................................................................................204