资源描述:
《精品毕业论文--汽车典型液压系统设计—起重机液压系统》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、摘要在我国,车载起重机的发展已有五十年的历史了,由于受到客观条件的限制,一度发展较慢。进入九十年代发展迅速,但与国际先进水平还相差很远,主要表现在产品质量的稳定性、自动化、智能化等方面。随着国家基础建设的规模不断加大,许多生产场合都需要对设备、产品、零件、货物等进行搬运和位移,车载起重机在起重运输行业和野外作业发挥的作用也将越来越大,市场也将越来越大。 汽车起重机液压系统的设计是该型起重机设计过程中最关键的一步。本文首先对汽车起重机总体进行初步设计,根据要求初步选择部分参数。然后再根据液压系统的技术指标对该系统进行整体方案设计。对其功能
2、和工作原理作进一步的比较分析,确定了系统各回路的基本功能结构及主要元件。设计的汽车起重机能够满足使用功能要求,安全可靠,结构合理,重量轻,操作使用方便,对许多生产场合与起重运输等行业,具有很强的现实意义。关键词:车载起重机,液压系统,工作原理,基本功能AutomotiveTypicalHydraulicSystemDesign——CraneHydraulicSystemAbstractThedevelopmentofthevehicle-mountedcranehasmorethan50years’historyinourcountry
3、.Limitedbytheexternalcondition,thevehicle-mountedcranedevelopedslowlyforatime.Since1990’s,ithasdevelopedrapidly.Butitstillcouldnotreachtheinternationaladvancedlevel,whichwasmainlyreflectedbythequalitystability,automation,andintelligentofproduct.Withthecountry’sinfrastruc
4、tureconstructionexpandedinsize,someequipment,products,componentsandgoodsneedtobemovedandshiftedinmanyproductionoccasions.Thevehicle-mountedplaysamoreandmoreimportantroleinliftingtransportationindustryandthefieldoperation..Andit’smarketwillbegrowing,too.Thedesignofthevehi
5、cle-mountedtransmissioncraneisthekeyintheprocessofdesigningthehoistofthistype.inthisarticle,first,carryonpreliminarydesigntotheoverallhoistandchoosesomeparameteraccordingtotherequirements.Second,carryontheoverallplandesignaccordingtohydraulicsystem'stechnicalspecificatio
6、n.Third,compareit’sfunctionwithit’soperationprincipleandconfirmthebasicstructureandmaincomponentsofeveryloopofthesystemtentatively.Thencarryonselectivecalculationofthecomponentsaccordingtoorganizationperformanceparametersandperformanceparametersofhydraulictransmissionsys
7、tem.throughthecomputationsandgeneratingheatofthesystematicfunction,therequestofthishoistcanbereached.Thevehicle-mountedcranethatisdesigned,cansatisfyuserequest.It’ssafe,reliable,reasonableconstructed,light,andconvenienttooperate.Ithasagreatoperationsignificancetomanyprod
8、uctionoccasionsandmanyindustriessuchasliftingtransportation.Keywords:Vehicle-mountedcrane,Hydraulictran