矿用自卸车车厢和举升机构设计.docx

TheGraduationDesignforBachelor'sDegree

TheDesignforCompartmentandLiftingMechanismofMiningDumpTruck

Candidate：WangGang
Specialty：Vehicleengineering
Class：B05-18
Supervisor：Lecturer.Hanchunqiang

HeilongjiangInstituteofTechnology
2009-06·Harbin摘要
本设计的题目是矿用自卸车车厢和举升机构设计。矿用自卸车是矿业生产中的重要设备，它具有荷载量大，车速低，运距短等主要特点。车厢和举升机构是重要的工作装置，对于车辆可靠工作、自动倾倒货物具有重要作用。
本设计首先论述了车厢和举升机构的结构形式，以及在满足设计性能需求的情况下，选择最符合要求的形式。在确定了矿用自卸车底盘的参数后，依此为依据完成其车厢和举升机构的设计，并对举升机构和液压系统进行校核，而且要绘制出车厢、举升机构、液压系统等图纸。在液压系统设计中，还要进行液压缸和油泵的选型和计算，并要选择取力器和方向控制阀的类型。由于矿用自卸车的工作条件比较恶劣，对它的要求也比一般的自卸车要苛刻，车厢的体积也比较大，强度要求也比较大，材料的强度也比较重要。若能将不同类型的举升机构，按其各自的特点配备到与之相应的自卸汽车，则无论是自卸汽车的工作性能，还是举升机构的使用效率，都会得到很大的改善。因此，如何选择合适的举升机构和车厢，成为自卸车设计的重要问题。

关键词：自卸车；设计；车厢；举升机构；液压系统

ABSTRACT
Thetopicofthisdesigniscompartmentandliftingmechanismofminingdumptruck.Theminingdumptruckisimportanceequipmentsinthemineralindustry,ithavecharacteristicsofcarryinggreatcapacity,thelowspeedandtheshortdistance.Thecompartmentandliftingmechanismofminingdumptruckisofimportanceinworkequipment,whichhavealargeimpactonthefunctions,suchasthecredibilityofvehicle,thelevelofdumpingthegoodsandsoon.
Firstlythisdesigndiscussedtheformsofthestructureofcompartmentandliftingmechanism,andchoicedthebestformunderthecircumstanceofsatisfyingthefunctionsinneed.Afterfixingontheparameterofthechassisofminingdumptruck,accordingtothis,wecancompleteitscompartmentandliftingmechanism,checkhydraulicsystemandliftingmechanism,protracttheblueprintofhydraulicsystemandliftingmechanism.Inthedesignofhydraulicsystem,weneedtochoicetheformofhydrauliccylinderandcalculatetheparameterofhydrauliccylinder,confirmtheparameterandbasicconfigurationandtheschemeoftotaldisposalofimplement..Becauseoftheworseworkingconditionofminingdumptruck,thedemandforminingdumptruckisveryrigour,suchas,thelargevolumeofcompartmentandthebigintensionofmaterial.Ifliftingmechanismofdumptruckfittoitverywell,theworkingperformanceofdumptruckandtheefficiencyoftheuseofliftingmechanismwillbeimproved.So,howtochoicetheformofthel