目 录
第一章 前言...........................................1
第二章 离合器的设计................................... 2
§2.1离合器概述 ..................................... 2
§2.2离合器结构方案分析. ............................3
§2.3离合器主要参数选择 ...........................4
§2.3.1后备系数 . ........................ ........4
§2.3.2单位压力 ..................................5
§2.3.3摩擦片外径D、内径d和厚度b.................6
§2.3.4摩擦因数f、摩擦面数Z和离合器间隙.........7
§2.3.5离合器的设计与计算 .......... .............8
§2.3.6膜片弹簧的特性................. ...... ....10
§2.3.7膜片弹簧材料及制造工艺...................13
第三章 扭转减振器的设计..........................15
第四章 离合器操纵机构.............................19
§4.1离合器操纵机构的要求 .. ...................19
§4.2离合器操纵机构的设计计算..................20
第五章离合器盖主要零部件的设计…...............21
§5.1从动盘总成 ....................................21
§5.1.1从动盘毂...................................21
§5.1.2摩擦片.....................................21
§5.1.3从动片.....................................22
§5.1.4波形片和减振弹簧..........................22
§5.2离合器盖总成 ..................................22
§5.2.1离合器盖….................................22
§5.2.2 压盘......................................23
§5.2.3传动片.....................................24
§5.2.4分离杠杆...................................24
§5.2.5支承环.....................................24
§5.3分离轴承........................................24
第六章 传动轴.......................................25
§6.1概述............................................25
§6.2万向节的结构分析...............................25
§6.2.1十字轴万向节..............................25
§6.2.2十字轴万向节的设计........................26
§6.3传动轴的结构分析与设计........................27
§6.4万向传动轴的设计计算..........................28
§6.5中间支承........................................29
第七章 结论....................................... ...31
参考文献..............................................32
致谢....................................................32
附录....................................................33
推式膜片弹簧离合器及万向传动轴
摘 要
汽车无疑是当今世界最主要的交通运输工具。柴油SUV作为新型的乘用车,是目前国际上发展趋势,其特点是比汽油SUV有更强的动力性、燃油经济性、市场潜力巨大,鉴于此,我们选择这种车型作为毕业设计的题目,其中本文主要设计离合器和万向传动轴的设计部分。离合器是汽车传动系中直接与发动机相连接的总成,其主要功用是切断和实现对传动系的动力传递,以保证汽车起步时将发动机与传动系平顺结合,确保汽车平稳起步;在换档时将发动机与传动系分离,减小变速器中换档齿轮之间的冲击;工作中受到大的载荷时能限制传动系所承受的最大转矩,防止传动系各零件因过载而损坏;有效降低传动系中的振动和噪声。万向传动轴是用于工作过程中相对位置不断改变的两轴之间传递转矩和旋转运动;保证所连接的两轴尽可能等速运转,由于万向节夹角而产生的附加载荷,振动和噪声应在允许的范围内,在使用车速范围内不应产生共振现象。
随着汽车发动机的转速和功率不断提高,汽车电子技术的高速发展,人们对离合器的传动轴的要求越来越高,本着提高离合器和传动轴工作性能的设计思想,通过方案分析和比较,参数的选择和优化,最终采用推式膜片弹簧离合器结构。液压操纵机构和分两段的传动轴及十字轴万向节,并力图在结构元件中有所创新设计出性能更好更符合汽车发展趋势的离合器几万向传动轴。
关键词:柴油SUV, 新型乘用车, 平稳起步, 最大转矩, 膜片弹簧, 万向传动轴
THE PUSHING DIAPHRAGM SPRING DISC SPRING CLUTCH
ABSTRACT
Automobile is certainly the most primary transports in this world。Diesel SUV as a new automobile its character well power economical so the more people are enjoy diesel SUV that’s why we choose it as our graduation subject. This paper deals with the design of clutch and universal joint shaft. The clutch is assembled in which the power train directly connecting with engine. Its primary functions are: switch off and transfer power for train in order to guarantee to connect smoothly engine to power train when automobile is starting. Then automobile may start smoothly; make engine away from power train and reduce the impact among the gears when the transmission shift; restrict the maximal torque that power train can endure when it come in for larger dynamic load; reduce effectively vibration and roar of the power. Universal joint shaft is used to two shaft configuration difference in every minute. It can transfer torque from transmission to Trans axle, and turning movement; It also can match the two shaft have the same movement. Because of the card a joint angle which produce additional load, chatter phenomena and voice should limit and it can’t produce resonance in general movement.
With people expect better clutch and universal joint shaft base an the design spirit of keeping improving. Through contrast of various precepts choice and majority of the parameter, finally I adopt the pushing diaphragm spring disc spring clutch, the hydrostatic controls and universal joint shaft, In order to scheme out better clutch and shaft which is congress step with trend of automobile development. I will try my best to create new structure in some components.
KEY WORDS: Diesel SUV,new automobile, start smoothly, maximal to torque,diaphragm spring disc,universal joint shaft





