机械5

金杯阁瑞斯汽车变速箱设计 摘要 从十八世纪工业革命开始到现在，人类科技可以说是突飞猛进。而汽车作为现今我们最常用的交通代步工具，其发展也是日新月异，新兴的高科技技术层出不穷，而变速器作为汽车传动系统中的一个不可或缺的部分，有很多发展创新的空间。本设计目的旨在于对金杯阁瑞斯型号汽车的变速箱进行设计，设计的结果在理想情况下，能够正常在汽车中使用运行。在对变速器的功能和结构进行介绍的基础上，主要研究其零件工作如何配合，如何完成动力的传输和传动比的改变。 中针对变速器这一装置，在介绍分析了其功能和工作原理的情况下，完成了利用CAD对变速器总体结构的绘制。在总体结构大致正确的情况下，一边拆画其主要零件，一边查阅相关书籍分析设计其主要零件。在校核设计过程中主要参照《机械设计》等相关书籍，然后对设计结果进行逐步校核审定设计结果，最后对整体设计进行确定。 本变速器基于两轴式变速器设计，参照其他汽车变速器设计方案最终完成了本汽车的中间轴式五档变速器。虽然在诸多方面的设计比较片面不严谨，但是基本适用于工作要求。 关键词：结构分析、零件设计、动力传输。 ABSTRACT I
n the lo
ng history of huma
n developme
nt, the i
ndustrial revolutio
n ca
n be said to really bri
ng ma
nki
nd i
nto a
new era of mecha
nizatio
n a
nd automatio
n. From the 18th ce
ntury to the prese
nt, mecha
nized a
nd truly popular to our side. A
nd the car as our most commo
nly used mea
ns of tra
nsportatio
n a
nd tra
nsportatio
n, its developme
nt is also cha
ngi
ng, emergi
ng high-tech tech
nology after a
nother, a
nd the tra
nsmissio
n as a
n i
ntegral part of the car drive system, there are ma
ny developme
nt of i
n
novative space. The purpose of this desig
n is to desig
n the gearbox of the Ji
nbei Gueri model car,which requires the desig
n result to meet the requireme
nts of thework, a
nd the desig
n result ca
n be ru
n
normally. O
n the basis of the i
ntroductio
n of the fu
nctio
n a
nd structure of the tra
nsmissio
n, the mai
nwork of how to copewith thework, how to complete the power tra
nsmissio
n a
nd tra
nsmissio
n ratio cha
nges. I
n this paper, for the tra
nsmissio
n of this device, i
n the a
nalysis of its fu
nctio
n a
ndworki
ng pri
nciple of the case, try to use CAD to draw the overall structure of the tra
nsmissio
n. I
n the overall structure of the case is correct,while diggi
ng its mai
n parts,while access to releva
nt books to a
nalyze the desig
n of its mai
n parts. I
n the process of checki
ng the desig
n of the mai
n refere
nce to the"mecha
nical desig
n" a
nd other related books, a
nd the
n the results of the desig
n results of the audit desig
n results, a
nd fi
nally to determi
ne the overall desig
n. The tra
nsmissio
n is based o
n the desig
n of the two-shaft tra
nsmissio
n,with refere
nce to other automotive tra
nsmissio
n desig
n program to complete the car's i
ntermediate shaft five-speed tra
nsmissio
n. Although i
n ma
ny aspects of the desig
n more o
ne-sided is
not strict, but basically applicable to thework requireme
nts. Keywords:Structural A
nalysis ;Part Desig
n;Power Tra
nsmissio
n. 目录 摘要I ABSTRACT II 1.绪论1 1.1研究意义1 1.2研究主要内容1 1.3目前研究的概况和发展趋势1 2.结构方案的设计4 2.1传动机构的设计4 2.1.1方案1两轴式传动机构4 2.1.2方案2中间轴式传动机构5 2.1.3汽车变速器箱的档数设计5 2.1.4倒挡设计6 2.1.5传动方案的确定6 2.2主要零件选型7 2.2.1齿轮型式7 2.2.2换档结构型式7 2.2.3变速器轴承7 3.变速器主要参数设计8 3.1各档传动比的确定8 3.2中心距A 9 3.3外形尺寸10 3.4齿轮参数10 3.5各档齿轮齿数12 3.6齿轮的其余基本参数计算14 3.7齿轮变位系数15 4.齿轮强度校核17 4.1齿轮的损坏原因及形式17 4.2齿轮的强度计算与校核17 5.轴的设计计算21 5.1轴的作用及设计要求21 5.2轴的结构21 5.3轴的尺寸设计22 5.4轴的校核24 5.5轴上键的设计选取27 6.同步器介绍及选取29 6.1同步器的结构以及工作原理29 6.2同步器的意义30 6.3锁环式同步器30 7.其他装置的选取32 7.1各档位位置的设置32 7.2操纵机构选取32 7.3换挡机构的自锁和互锁机构33 8.总结34 参考文献35 致谢36 附录1外文译文 附录2外文原文