渐开线内啮合齿轮泵的设计本科毕业论文.doc

陆燕渐开线内啮合齿轮泵的设计PAGE-33-渐开线内啮合齿轮泵的设计摘要齿轮泵由于结构紧凑、体积小、重量轻、转速范围大、自吸性能好和对油液的污染部敏感等优点而广泛应用在机床工业、航天工业、造船工业及工程机械等各种机械的液压系统中。流量脉动、噪声和效率是评价齿轮泵性能的三大指标，它们之间互相联系，互相作用。齿轮泵的流量脉动引起压力脉动，而压力脉动是引起齿轮泵流体噪声的主要因素，在降低噪声和流体脉动的同时，应防止齿轮泵溶积效率的降低。因此，在齿轮泵的设计中，应综合考虑这三者的影响。本论文以渐开线内啮合齿轮泵为研究对象，从其工作原理出发以及内啮合齿轮泵的齿轮几何参数上对其进行较为详细的分析和计算。从内啮合齿轮泵的设计要点出发，计算出内啮合齿轮泵齿轮副的几何参数，推导出其轮齿啮合时不发生渐开线干涉、齿廓重迭干涉和径向干涉的条件，并代入各参数进行验证，最终确定其几何参数。在此基础上，对渐开线内啮合齿轮泵的总体结构进行研究设计，并选取合适的零部件材料。参考何存兴老师的《液压元件》教材进行内啮合齿轮泵排量的计算公式的推导。关键词：内啮合齿轮泵几何参数干涉排量ThedesignofinvoluteinternalpumpAbstractGearpumpsarewidelyusedinhydraulicsystemsofmachinetool,aviation,shipbuildingandengineeringmachinesetc,becauseoftheirvirtues,suchassimpleandcompactstructure,lighterweight,widerangeofrotatespeed,bettercapabilityofself-suckandnothavingathickskinwiththeoil’spolluting.Flowpulsation,noiseandefficiency,whicheffectoneachother,arethreeprimarycriterionsthatevaluatetheperformanceofgearpumps.Thehydro-noiseisprimarycausedbypressurepulsation,andpressurepulsationiscausedbyflowpulsation..Thecubageefficiencyshouldbepreventedtoreducedwhennoiseandflowpulsationarereduced.So,theireffectshouldbeconsideredwhengearpumpsaredesigned.Theresearchobjectofthisdissertationareinvoluteinternalgearpumps.Onthebasisoftheirworkingprinciple,analysesandcalculatesthegeometryparametersoftheinternalgearpumps.Fromthedesigningmainpointofthegeometryparametersoftheinternalgearpumps,anewdesireiscalledfor.Whichworkedoutinthegearpumpgearsmeshingofthegeometricparameters,deriveditstoothmeshingnottointerfereininvoluteline,toothoverlapinterventionandinterferenceintheradialconditions,Andintothevariousparameterstoverify,ultimatelydeterminetheirgeometricparameters.Onthisbasis,tograduallyopenlinesmeshgearpumptostudytheoverallstructuredesign,andselecttheappropriatepartsmaterials.ConsultingwiththemechanicaldesigntextbookwrittenbyHeCunXing,thisdissertationdeducediaplacemengofinternalgearpumps.KeyWords:InternalGearPump;GearParameters;Interference;deliverycapacity毕业论文（设计）原创性声明本人所呈交的毕业论文（设计）是我在导师的指导下进行的研究工作及取得的研究成果。据我