履带车辆主动轮减速装置设计

本科学生毕业设计履带车辆主动轮减速装置设计系部名称：汽车与交通工程学院专业班级：车辆工程B07-11班学生姓名：宋磊指导教师：朱荣福职称：讲师黑龙江工程学院二○一一年六月TheGraduationDesignforBachelor'sDegreeDesignofHybridTrackedVehicleActiveWheelReducerCandidate：SongleiSpecialty：VehicleEngineeringClass：B07-11Supervisor：LecturerZhuRongfuHeilongjiangInstituteofTechnology2011-06·Harbin黑龙江工程学院本科生毕业设计I摘要在履带车辆中，减速传动装置是重要的组成部分之一，本文主要以主动轮减速器设计为主，在履带车辆中主动轮减速器起着重要的作用。主要的作用：降低电动机传动主动的转速，并增大传递到主动轮的转矩，是履带车辆有足够的动力性，满足履带车辆起步、加速、通过性。本设计为履带车辆主动轮减速器设计，主要介绍齿轮是减速器的选择以及传动方案的选择。为适应履带车的行驶条件需要，通过履带车辆的车重和最大行驶速度，计算出履带车辆行驶中所需的最大功率最大扭矩。根据最大功率计算总传动比，是总传动比能达到减速比的要求，并进行传动比的分配和确定各轮齿齿数和尺寸，以及确定选择使用单级传动和二级传动。根据计算要求确定输入输出轴轴颈计算和轴段长度的计算以及轴的校核。最后进行密封件的选择和轴的工艺分析。选择合适的密封件并满足设计要求，另外轴在加工时要有一定的技术要求，加工后的轴应满足技术和设计要求。关键词：减速传动装置；传动比；传动比；校核；密封件黑龙江工程学院本科生毕业设计IIABSTRACTCaterpillarvehicles,theslowdowninthetransmissiondeviceisanimportantpartofthispapermainlyactivewheelreducerdesignisgivenpriorityto,inactivewheelreducerofcaterpillarvehicleplaysanimportantrole.Mainfunction:reducethespeedofthemotordrive,andincreaseinitiativetodeliverthetorque,activewheelistrackedvehicleshaveenoughpowertomeettrackedvehiclesstart,accelerate,throughsex.Thisdesignfortrackedvehiclesdrivinggearreducerdesign,mainlyintroducestheoptionandisreducergeartransmissionoptions.Throughthecaterpillarvehicleweightofthecarandmaximumspeedsofcaterpillarvehicle,calculatethemaximumpowerrequired.Accordingtothemaximumpowercalculatingtotalratio,andthedistributionoftransmissionratio,andconfirmthepiniongearanddimension.Andinput/outputshaftshaftneckcalculationandshaftlengthcalculation,andtheaxisofdynamicrigidity.Ontheclassificationoftheshaftsealprocessanalysis.Chooseappropriatesealingpartsandmeetthedesignrequirements,anothershaftinprocessmusthavecertaintechnicalrequirements,theprocessedaxisshouldmeetthetechnicalanddesignrequirements.Thisdesigncloselycombiningthemostmaturemoderntrackedvehiclesoftechnology.Keywords:SlowTransmissionDevice;Ratio;DistributionRatio;Check;Seals黑龙江工程学院本科生毕业设计III目录摘要.................................................................IAbstract................................................................II第一章绪论.........................................................11.1选题的目的及意义...................................................11.2齿轮式减速器发展现状...............................................11.3齿轮减速器的发展趋势...............................................21.4主要工作内容.......................................................3第二章减速器传动方案的确定.........................................42.1总体方案的确定.....................................................42.1.1减速器的类型及特点.............................................42.1.2传动方案分析...................................................52.1.3行星齿轮变速器的工作原理.......................................92.1.4常用行星齿轮传动的形式与特点..................................112.2传动比的确定......................................................122.2.1确定发动机最大功率............................................122.2.2确定传动比....................................................132.3本章小结..........................................................17第三章齿轮结构设计与计算..........................................183.1行星排的配齿计算及强度校核........................................183.1.1分配传动比....................................................183.1.2行星齿轮传动齿数确定的条件.....................错误!未定义书签。3.2减速器高速级的计算.................................错误!未定义书签。3.2.1行星排的配齿计算...............................错误!未定义书签。3.2.2验算高速级A－C传动的接触强度..................错误!未定义书签。黑龙江工程学院本科生毕业设计IV3.2.3验算A－C传动弯曲疲劳强度的校核................错误!未定义书签。3.2.4根据接触强度计算来确定内齿轮材料...............错误!未定义书签。3.2.5C－B传动的弯曲强度验算........................错误!未定义书签。3.3减速器低速级的计算.................................错误!未定义书签。3.3.1配齿计算.......................................错误!未定义书签。3.3.2按接触强度初算A－C传动的中心距和模数..........错误!未定义书签。3.3.3行星排齿轮结构参数的计算.......................错误!未定义书签。3.3.4验算A－C、C－B传动的接触强度及弯曲疲劳强度....错误!未定义书签。3.4本章小结.........................................错误!未定义书签。第四章轴及轴上支承联接件的校核....................错误!未定义书签。4.1轴的种类...........................................错误!未定义书签。4.2轴的工艺要求.......................................错误!未定义书签。4.3轴的初算及材料选择.................................错误!未定义书签。4.4高速轴的校核.......................................错误!未定义书签。4.4.1高速轴的受力分析...............................错误!未定义书签。4.4.2按当量弯矩校核轴的强度........................................194.5低速轴的校核......................................................204.5.1低速轴的受力分析..............................................204.5.2按当量弯矩校核轴的强度........................................214.5.3花键的选择及校核计算..........................................224.5.4输入轴上的花键校核............................................234.5.5联结高速级与低速级间的花键校核................................234.5.6输出轴的花键校核..............................................244.6减速器中轴承的选择及寿命校核......................................244.6.1轴承承载能力的计算............................................244.6.2轴承的寿命计算................................................264.7本章小结..........................................................27第五章减速器密封及轴工艺分析....................................285.1概述.......................................................