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HKD640微型客车设计（变速器及操纵机构设计设计）（有cad图）.doc
变速器总成.dwg
操纵.dwg
箱体.dwg
设计说明书.doc[22000字，54页]
摘 要
变速器为一能将发动机动力传至汽车驱动车轮的齿轮系统。当离合器接合时，变速器通过其输入轴接受来自发动机的转矩。转矩接着通过一组齿轮传递，或增大或直接传递。最后产生的转矩推动间接与驱动车轮相连的变速器输出轴转动。所有变速器均有两种主要功能：根据各种各样的条件选择不同的速度比，并提供使汽车运动反向的方式。
变速器有机械式手动变速器和机械式无级变速器两种，如果变速器挡位多其动力性和经济性得到保证，挡位少其操纵方便，本次设计我设计的是微型客车变速器，本次设计中：首先，我对变速器传动机构布置方案做了分析，然后对其传动比作了仔细的分析计算并参考相关车型最终确定了各挡的传动比，针对变速器的传动机构方案的布置作了详细的分析最终选用5+1挡中间轴式变速器，换挡形式采用同步器换挡。接着确定了第二轴与中间轴的中心距，并且根据中心距和各档传动比分配好各档齿轮的齿数及各参数。结合总体的要求操纵机构形式选用直接操纵机构形式。本次设计的变速器即满足了汽车必要的动力性也满足了其经济性的指标。最后通过对齿轮、轴、键、轴承等的校核，其变速器的尺寸及其部件的强度都满足设计要求。
关键词：变速器，设计，轻型载货汽车，传动比
HKD640 PASSENGER TRANSMISSION AND CONTROL DESIGN
ABSTRACT
Transmission for a can of engine power to drive the car wheel gear system. When the clutch engagement, transmission through its input shaft from the engine torque. By a group of torque and then transfer, or increase or gear transmission directly. The push of torque and drive wheels of indirect transmission output shaft rotation. All transmission are two main functions: according to the various conditions of different choices, and provide faster than a car to reverse way
Manual transmission and mechanical transmission is mechanical patterned step-less variator transmission gears, if two more than its performance and fuel economy of guaranteed, block the manipulation convenient, the less I design is designed, the passenger transmission design: first, I drive mechanism of transmission layout, then analyses its transmission to the careful analysis and calculation related models of the final against the transmission ratio, the transmission mechanism plan layout has made the detailed analysis finally chooses 5 + 1 block transmission, shift oart type synchronizer shift by form. Then determine the second shaft and the center distance, and because the center distance and according to the distribution of transmission gears of good combinations and parameters. Combined with the overall request form directly manipulated mechanism selection control form. This design is the transmission of the car to meet performance also satisfy its economic indicators. Finally, through the gears, bearings, checking, its size and its components of transmission of strength and meet the design requirements.
Keywords: transmission, design, light vehicles, transmission
目录
前言···························································· 1
第一章 概述 ··················································· 3
第二章 变速器传动机构布置 ···································· 5
§2.1 传动机构布置方案分析 ··································· 5
§2.2 零部件结构方案分析 ····································· 9
第三章 变速器主要参数的选择 ································· 12
§3.1 各档传动比分配·········································· 12
§3.2 中心距A ················································· 12
§3.3 齿轮参数的选取 ········································· 13
§3.4 各挡齿轮齿数的分配及传动比计算························ 16
第四章 变速器的设计与计算 ·································· 19
§4.1 轴的计算与校核 ········································· 19
§4.2 齿轮的计算与校核 ······································ 22
§4.3 轴承的计算与校核 ······································ 26
§4.4 键的校核计算 ··········································· 27
第五章 同步器的设计 ·········································· 29
第六章 变速器操纵机构设计 ··································· 32
结 论 ·························································· 33
参考文献 ······················································ 34
致 谢 ·························································· 35
附 录 ·························································· 36
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