机械式变速器设计-毕业论文

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1、哈尔滨工业大学华德应用技术学院毕业设计（论文）摘要变速器是汽车传动系中的主要部件之一。变速器由变速传动机构和变速操纵机构两部分组成。变速传动机构的主要作用是改变转距和转速的数值和方向；操纵机构的主要作用是控制传动机构，实现变速器传动比的改变，即实现换挡，以达到变速变距。本题目主要进行宝马120i汽车三轴六挡机械式变速器的设计，包括变速器的整体结构和齿轮传动部分的设计，并进行相关的计算与校核。经过设计与校核，该变速器主要结构符合设计标准、零件强度也达到了使用要求。关键词：汽车机械变速器；三轴六挡；传动比；齿轮-I-哈

2、尔滨工业大学华德应用技术学院毕业设计（论文）AbstractTransmissionintheautomotivetransmissionlines,oneofthemostimportantcomponents.Transmissionspeedbyavariablespeedtransmissionandcontrolmechanismoftwoparts.Themainroleofthevariable-speedtransmissionistochangethevalueoftorqueandrotatio

3、nalspeedanddirection;manipulationoftheorganization'smainroleistocontrolthetransmissionmechanism,transmissiongearratiotoachievetheexchange,thatis,toachieveshiftinordertoachievevariable-speedpitch.Thissubject,mainlyforautomotiveBMW120isix-axismechanicaltransmiss

4、iongearstructuraldesign,includingthegeardriveparts,controlofpartofthe,etc.,andtheassociatedcalculationandverification,throughthedesignandverification,Themainstructureofthetransmissionlinedesignstandards,partsintensityreachedtheuserequirements.Keywords:Automoti

5、veMechanicalTransmission；Axis6block；gearratio；gearwheel-II-哈尔滨工业大学华德应用技术学院毕业设计（论文）目录摘要································································································IAbstract·····································································

6、·····················II第1章绪论····················································································41.1选题的背景及意义··································································41.2变速器的功用和要求·························································

7、······31.3国内外研究状况·····································································41.4部分已知的主要参数·······························································61.5本章小结··············································································6第2章机械式变速器的概

8、述及其方案的确定···········································72.1变速器结构方案的确定····························································72.1.1变速器传动机构的结构分析与型式选择·······························7