原创通过答辩毕业设计说明书论文 QQ 194535455 1 /49 摘要变速箱是由装在变速箱壳体内各轴上不同齿数的齿轮和操纵机构组成的。根据不同档位的需要将不同轴上不同齿数的齿轮啮合在一起,从而实现不同的传动比以此来实现变速,在变速箱中, 齿轮, 轴和操纵机构起着重要的作用。在设计的过程中主要各档传动比进行分配、计算,对各档齿轮齿数分配、计算,并对齿轮进行设计、计算,强度校核;对轴进行强度和刚度校核。变速箱的操纵机构设计包括选换挡机构设计和锁定机构设计两部分。选换挡机构包括操纵盖,拨叉,拨快,拨叉轴设计。锁定机构设计包括自锁机构设计,互锁机构设计和联锁机构设计。关键字: 齿轮; 轴;轴操纵机构; 锁定机构原创通过答辩毕业设计说明书论文 QQ 194535455 2 /49 Abstract The gearbox is mounted on the shaft bya different number of teeth of the gear in the gearbox housing and the operating mechanism thereof. According to different needs of different shaft type gear teeth engaged with the gear, in order to achieve the different gear ratios in order to achieve, in the gearbox, gear, shaft and plays an important role in the control mechanism. In the design process mainly allocated for each gear ratio, calculated on the number of teeth of each gear allocation, calculation, and gear design, calculation, strength check; strength and stiffness of the shaft checked. The design includes a transmission operating mechanism the shifting mechanism and a locking mechanism designed in two parts. The shifting mechanism includes manipulation cover, fork, dial fast, fork shaft design. The locking mechanism design includes self-locking mechanism design, mechanical design and interlocking interlocking mechanism design. Key words: Gear Axis Manipulation of body Locking mechanism 原创通过答辩毕业设计说明书论文 QQ 194535455 3 /49 目录前言..................................................................................................................................................... 3 1 机械式变速器的概述及其方案的确定...................................................................................... 4 变速器传动机构的结构分析与型式选择...................................................................... 4 档位数的确定....................................................................................................... 4 传动形式的确定.................................................................................................. 4 倒档的形式及布置方案....
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