三轴式五挡手动变速器毕业设计方案.doc

三轴式五档手动变速器设计摘要本设计任务是设计一台用于通用五菱之光微型车三轴式五档手动变速器，该变速器有两个突出优点：一是其直接档传动效率高，磨损及噪声也最小；二是在齿轮中心距较小情况下仍然能够取得较大一档传动比。 伴随科学技术日益发展，汽车各项性能也日臻完善。现代汽车已成为世界各国国民经济和社会生活中不可缺乏交通工具。现代汽车除了装有性能优良发动机外还应该有性能优异传动系和之匹配才能将汽车性能淋漓尽致发挥出来，所以汽车变速器设计显得尤为关键。分析了为确保变速器含有良好工作性能，对变速器应提出设计要求。具体介绍了变速器机构方案确实定，变速器关键参数选择，变速器设计计算，同时器设计计算等在变速器设计过程中关键步骤。变速器用来改变发动机传到驱动轮上转矩和转速，目标是在原地起步，爬坡，转弯，加速等多种行驶工况下，是汽车取得不一样牵引力和速度，用时使发动机在最有利工况范围内工作。变速器设有空档和倒档。需要变速器还有动力输出功效。关键词：变速器；同时器；档数；轴；Three axis manual shift transmission design in fiveAbstrack This design task is to design a used for general WuLing sunshine in fiveof the three axis subcompact manual shift transmission ，the transmission hastwo outstanding advantages ： one is its direct transmission of high transmissionefficiency ； wear and noise minimal ；Second：in the gear center distance issmaller still can acquire larger gear transmission . Along with the development of science and technology , the car of variousperformance also is being perfected . Hyundai has become the world nationaleconomic and social life of indispensable transport . Modern car with goodperformance engine except outside still should have excellent performancedrivetrain matching car performance will play out, so the incisively and vividlyauto transmission design is particularly important. Analyzed in order to ensure transmission has good work performance ： the transmission should propose design requirements. Introduces the transmission mechanism project determination,and transmission main parameters are selected, the transmission design calculation , the synchronizer design calculation in design process such as a critical step in transmission. Transmission used to change to the drive wheels on the engine torque ancd rotational speed, the purpose is back starting, climbing, turn, accelerate, etc. Various kinds of driving conditions, the automobile get different traction and the engine speed and use it in the most favorable work within the working conditions. Transmission has gap and reversing. Need transmission and power output functions. Keywords: transmission; Synchronizer; File numbered; Axis; 目录汉字摘要英文摘要关键符号表1绪论 1.1概述1.2五档手动变速器研究意义1.3中国外相关研究现实状况1.3.1手动变速器（MT）1.3.2自动/手动变速器（AMT）1.3.3自动变速器（AT）1.3.4无级变速器（CVT）1.3.5双离合器变速器（DCT） 1.4本文关键研究工作2机械式变速器概述及其方案确实定2.1变速器功用和要求2.2变速器结构方案确实定2.2.1变速器传动机构结构分析和型式选择2.2.2倒档传动方案2.3变速器关键零件结构方案分析2.3.1齿轮型式2.3.2换档结构型式3变速器关键参数选择和关键零件设计3.1 变速器关键参数选择3.1.1档数和传动比3.1.2中心距3.1.3轴向尺寸3.1.4齿轮参数3.2各档传动比及其齿轮齿数确实定3.2.1确定一档齿轮齿数3.2.2确定常啮合齿轮副齿数3.2.3确定其它档位齿数3.2.4确定倒档齿轮齿数3.3 齿轮变位系数选择4变速器齿轮强度计算和材料选择4.1 齿轮损坏原因及形式4.2 齿轮强度计算和校核4.2.1齿轮弯曲强度计算4.2.2 齿轮接触应力5变速器轴强度计算和校核5.1变速器轴结构和尺寸5.1.1轴结构5.1.2确定轴尺寸5.2 轴校核5.2.1第一轴强度和刚度校核5.2.2第二轴校核计算6变速器同时器设计6.1同时器结构6.2同时环关键参数确实定 6.2.1同时环锥面上螺纹槽 6.2.2锥面半锥角 6.2.3摩擦锥面平均半径R 6.2.4锥面工作长度b6.2.5同时环径向厚度6.2.6锁止角6.2.7同时时间t7变速器操纵机构8结论致谢参考文件1.4本文关键研究工作本设计任务是设计一台用于通用五菱之光微型车三轴式五档手动变速器，该变速器有两个突出优点：一是其直接档传动效率高，磨损及噪声也最小；二是在齿轮中心距较小情况下仍然能够取得较大一档传动比。需毕业论文正文全文及全套图纸可联络: QQ或微信: TEL: