搜索
学号密级公开xxxxxxxxx本科生毕业设计风力发电机传动系统的设计学院名称：培黎工程技术学院专业名称：机械设计制造及其自动化学生姓名：马指导教师：同教授二○一三年五月BACHELOR'SDEGREETHESISOFLANZHOUCITYUNIVERSITYDesignofTransmissionSystemofWindPowerGeneratorCollege:SchoolofBailieEngineering&TechnologySubject:MechanicDesignManufacturingandAutomationName:MaDirectedby:ProfessorTongChanghongMay2013郑重声明本人呈交的学位论文，是在导师的指导下，独立进行研究工作所取得的成果，所有数据、图片资料真实可靠。尽我所知，除文中已经注明引用的内容外，本学位论文的研究成果不包含他人享有著作权的内容。对本论文所涉及的研究工作做出贡献的其他个人和集体，均已在文中以明确的方式标明。本学位论文的知识产权归属于培养单位。本人签名：日期：摘要风电产业的飞速发展促成了风电装备制造业的繁荣，传动系统是风电机组的核心系统，而齿轮箱又为双馈式风电机组传动系统的核心部件，备受国内外风电行业和研究机构的关注。但由于国内齿轮箱的研究起步晚，技术薄弱，尤其在目前兆瓦级风力发电机中，其属于易过载和过早损坏率较高的部件，且易出故障。与之相对应的，直驱式风力发电机具备低风速时高效率、低噪音等优点，但直驱式发电机组在风力发电越来越大型化发展的今天，其过于庞大的低速发电机运输、吊装困难，制造成本较高。二者相比较，考虑到结构、经济问题，我们就不得不重新思考如何提高齿轮箱的传动效率，从而提高传动系统的传动效率。本文在对风力发电机的结构、原理深入了解、研究的基础上，对其传动系统的齿轮增速系统进行自主设计。先确定齿轮箱的传动型式，选取一级行星和两级平行定轴传动方案，再分配传动比，通过计算，确定各齿轮齿数，并对其进行接触强度校核，结果符合安全要求。关键词：风力发电机；传动系统；直驱式；双馈式；齿轮增速箱ABSTRACTThefastdevelopmentofwindpowerindustryhelpstobringaboutboomingofwindpowerequipmentmanufacturingbusiness.Transmissionsystemisthecoreofthewindturbinesystemandgearbox,concernedbythewindpowerindustryandresearchinstitutionsathomeandabroad,isthecorecomponentofdoubly-fedwindturbinetransmissionsystem.Butasaresultoftheresearchofdomesticgearboxstartedlateandtechnologyisweak,especiallyinthemegawattwindturbine,itbelongstoeasytooverloadandhighratesofprematurefailurepartsandiseasytooutoforder.Andatthesametime,directdrivewindturbinesiswiththeadvantagesofhighefficiencyandlownoisewhenlowwindspeed,butdirectdrivewindpowergeneratorinmoreandmorelarge-scaledevelopmenttoday,low-speedgeneratoristoolargetotransportandhoistandthemanufacturingcostishigher.Aftercomparedwiththem,consideringthestructureandtheeconomicproblems,wearegoingtohavetorethinkhowtoimprovethetransmissionefficiencyofgearbox,soastoimprovethetransmissionefficiencyoftransmissionsystem.Onthebasisofdeepunderstandingthestructureandprincipleofwindturbine,ihavebeendoinganindependentdesignaboutgeargrowthsystemofwindturbinetransmissionsystemanditispresentedinthispaper.Firstly,determinethetransmissiontypeofthegearbox,selectlevelofplanetsandtwolevelparallelfixedaxletransmissionscheme,distributetransmissionratio,throughcalculation,determinethegearteeth,andcontactstrengthcheck,theresultisinconformitywiththesafetyrequirements.Keyword:winddrivengenerator;drivesystem;directdrive;doubly-fed;step-upgearbox目录第1章绪论..................................................................................................11.1风力发电机研究的背景及其意义.................................................................11.1.1风力发电机研究的背景......................................................................11.1.2风力发电研究的意义..........................................................................11.2风力发电发展的过程、现状及趋势.............................................................21.2.1风力发电初创时期..............................................................................21.2.2风力发电徘徊发展期..........................................................................21.2.3风力发电的现状及趋势......................................................................31.2.4我国风力发电技术存在的问题..........................................................41.3本文研究的主要内容.....................................................................................5第2章风力发电机组的组成和驱动结构型式.........................................62.1概述.................................................................................................................62.2风力发电机组的组成与结构.........................................................................72.3风力发电机的结构型式...............................................................................102.3.1直驱型风力发电机............................................................................102.3.2双馈型风力发电机.............................................................................112.3.3直驱型风力发电机和双馈型风力发电机的特性比较....................12第3章风力发电机组传动系统设计.......................................................143.1传动系统的结构...........................................................................................143.2风力发电机传动系统布置型式及其特点比较...........................................143.3增速齿轮箱传动系统的典型结构型式及分析...........................................153.4增速齿轮箱传动系统设计...........................................................................173.4.1设计的主要内容................................................................................173.4.2齿轮增速传动系统设计....................................................................193.4.2.1传动比的分配.........................................................................203.4.2.2行星齿轮选用满足的几何条件.............................................203.4.2.3传动部分参数计算.................................................................203.4.2.4齿轮参数确定.........................................................................213.4.3箱体..................................................................................................303.4.4齿轮箱的冷却和润滑........................................................................313.4.5齿轮箱的使用及其维护................................................