15MW风机齿轮箱的设计

1摘要风电产业的飞速发展促成了风电装备制造业的繁荣，风电齿轮箱作为风电机组的核心部件，倍受国内外风电相关行业和研究机构的关注。但由于国内风电齿轮箱的研究起步较晚，技术薄弱，特别是兆瓦级风电齿轮箱，主要依靠引进国外技术。因此，急需对兆瓦级风电齿轮箱进行自主开发研究，真正掌握风电齿轮箱设计制造技术，以实现风机国产化目标。本文设计的是兆瓦级风力发电机组的齿轮箱，通过方案的选取，齿轮参数计算等对其配套的齿轮箱进行自主设计。首先，确定齿轮箱的机械结构。选取一级行星派生型传动方案，通过计算，确定各级传动的齿轮参数。对行星齿轮传动进行受力分析，得出各级齿轮受力结果。依据标准进行静强度校核，结果符合安全要求。其次，基于Pro／E参数化建模功能，运用渐开线方程及螺旋线生成理论，建立斜齿轮的三维参数化模型。关键词：风力发电，风机齿轮箱，结构设计，建模1AbstractTherapiddevelopmentofwindpowerindustryleadtotheprosperityofwindpowerequipmentmanufacturingindustry．Asthecorecomponentofwindturbine，thegearboxisreceivedmuchconcernfromrelatedindustriesandresearchinstitutionbothathomeandabroad．However,duetothedomesticresearchofgearboxforwindturbinestartslate，technologyisweak，especiallyinthegearboxforMWwindturbine，whichmainlyreliedontheintroductionofforeigntechnology．Therefore，itisurgentneedtocarryoutindependentdevelopmentandresearchonMWwindpowergearbox，andtrulymasterthedesignandmanufacturingtechnologyinordertoachievethegoaloflocalization．Thispapertakesthewindpower。Theindependentdesignofthegearboxmatchingforthewindturbinehasbeencarriedoutbyselectingthetransmissionschemeandcalculatingthegearparameters。Firstly,themechanicalstructureofgearboxisdetermined．Thetwo-stagederivationplanetarytransmissionschemeisselected．Thegearparametersofeverystagetransmissioniscalculated．，andtheforceanalysisresultsisobtained．Thestaticstrengthcheckoftoothsurfacecontactisimplementedaccordingtorelatedstandard．Theresultshowsthatitisaccordwithsafetyrequirements．Secondly,thehelicalgearparametricmodelisestablishedbasedoninvolutescurveequationandgenerationtheoryofspirallinebyusingthefunctionofparametricmodelinginPro／E．Then,thetoothsurfacecontactstressofthegeartransmissioniscalculated．KeyWords：thewindpower，GearboxforWindTurbine；StructureDesign；ParametricModeling1目录摘要.......................................................................................................................................................IAbstract.................................................................................................................................................I目录........................................................................................................................................................II第一章引言...........................................................................................................................................11.1课题来源...................................................................................................................................11.2国内外发展现状与趋势.............................................................................................................21.2.1风力发电国内外发展现状..............................................................................................21.2.2风电齿轮箱的发展趋势..................................................................................................41.3课题意义...................................................................................................................................51.4论文的主要内容........................................................................................................................6第二章齿轮箱的设计............................................................................................................................62.1增速齿轮箱方案设计...............................................................................................................62.2齿轮参数确定...........................................................................................................................82.2.1行星轮系的齿轮参数.....................................................................................................82.2.2圆柱级齿轮参数............................................................................................................122.3受力分析与静强度校核...........................................................................................................132.3.1受力分析......................................................................................................................132.3.2低速级外啮合齿面静强度计算.....................................................................................152.4传动轴的设计与校核..............................................................................................................152.4.1高速轴的设计与校核...................................................................................................152.4.2中间轴的设计与校核...................................................................................................162.4.3低速轴的设计与校核...................................................................................................172.5键的选择与校核......................................................................................................................182.5.1高速轴上键的选择.......................................................................................................182.5.2中间轴上键的选择.......................................................................................................182.5.3低速轴上键的选择......................................