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分类号密级宁毕业设计(论文)少齿差行星齿轮专用减速器的设计所在学院专业班级姓名学号指导老师年月日诚信承诺II我谨在此承诺：本人所写的毕业设计（论文）《少齿差行星齿轮专用减速器设计》均系本人独立完成，没有抄袭行为，凡涉及其他作者的观点和材料，均作了注释，若有不实，后果由本人承担。承诺人（签名）：年月日I摘要少齿差行星齿轮减速器是一种新型减速器，在我国飞速发展的现代工业中起着重要的作用。以其体积小，重量轻，传动比范围大，效率高，寿命长等优点在冶金、矿山、轻工等各个部门中有着广泛的应用。本课题是设计专用的少齿差行星齿轮减速器，对少齿差行星齿轮减速器主要发展状况、结构型式和其传动原理进行了一定的阐释。在设计过程当中，从如何提高转臂轴承的寿命为出发点，来计算选择减速器齿轮的模数，进行少齿差内齿轮副的设计计算，以画图与理论设计相结合来确定轴、齿轮、箱体的结构尺寸，以及对轴、齿轮、轴承、键等关键性零部件进行性对应的校核，并参考相关文献资料来最终合理设计减速器的整体结构。关键词：少齿差行星传动，行星齿轮减速器，内齿轮副，零件校核IIAbstractSmallteethdifferenceplanetarygearreducerisanewreducer,therapiddevelopmentofmodernindustryinourcountryplaysanimportantrole.Itssmallsize,lightweight,transmissionratiorange,highefficiency,longlifeandotheradvantageshasbeenwidelyusedinvarioussectorsmetallurgy,mining,lightindustry,etc..Thisspecialissueisdesignedsmallteethdifferenceplanetarygearreducer,forsmallteethdifferenceplanetarygearreducermajordevelopment,structuretypeanditsdrivingprincipleforacertainamountofinterpretation.Inthedesignprocess,fromhowtoraisethearmbearinglifeasastartingpointtocalculatethenumberofreducergearselectionmode,performfewersideteethdifferenceinternalgeardesigncalculationstocombinedrawinganddesigntheorytodeterminetheshafts,gears,cabinetstructureandsize,aswellasshafts,gears,bearings,keysandothercriticalcomponentsofsexualcorrespondingcheckandrefertotherelevantliteraturetotherationaldesignoftheoverallstructureoffinalreducer..Keywords：Smalltoothnumberdifferenceplanettransmission,Planetarygearreducer,Annulargear,PartscheckedIII目录摘要.................................................IAbstract.............................................II目录..............................................III第1章绪论.........................................11.1概述.................................................................................................................11.2少齿差行星减速器的结构型式.....................................................................11.2.1N型少齿差行星减速器.......................................................................11.2.2NN型少齿差行星减速器....................................................................31.2.3设计任务..............................................................................................4第2章齿轮的设计....................................52.1齿轮齿差的确定.............................................................................................52.2选定齿轮的精度等级和材料.........................................................................52.3齿轮模数确定.................................................................................................6第3章轴的设计......................................93.1轴的材料选择.................................................................................................93.2轴的机构设计.................................................................................................93.2.1输入偏心轴的结构设计....................................................................103.2.2输出轴的机构设计............................................................................113.3强度计算.......................................................................................................113.3.1输入轴上受力分析............................................................................123.3.2输入轴支反力分析............................................................................123.3.3轴的强度校核....................................................................................133.4传动内部结构的选定与设计.......................................................................153.4.1转臂轴承的选定................................................................................15IV3.4.2负重套筒基本尺寸的确定.................................................................163.5轴的设计.......................................................................................................163.5.1输入轴的设计.....................................................................................173.5.2输出轴的设计.....................................................................................19第4章部分零件的校核...............................214.1少齿差行星齿轮传动受力分析...................................................................224.1.1齿轮受力.............................................................................................224.1.2转臂轴承受力.....................................................................................234.2键的校核计算...............................................................................................234.2.1联轴器处键的校核.............................................................................234.2.2套筒处键的校核.................................................................................244.2.3支座处键的校核.................................................................................244.3轴承的校核计算...........................................................................................24第5章箱体尺寸及附件的设计.........................275.1箱体的设计...................................................................................................275.2附件的选择...................................................................................................285.2.1