机械5

摘要 本文主要讨论了双滚筒碎边剪传动系统的结构组成，首先在绪论中对碎边剪做了简要的介绍，包括其特点，现状，以及工作原理。随后在正文的计算部分，首先对剪切力,剪切力矩以及电功率进行了计算从而选择了合适的电动机，随后又对传动比的分配和轴的转速，转矩进行分析计算，接着对轴与齿轮进行了设计计算，其中包括一级，二级齿的设计，高，中，低速轴的计算，以及键与联轴器的选择。而后分析了齿轮座的构成，齿轮座箱体内装着一对齿数相同的圆柱斜齿轮，保证直径相等的上下装刀滚筒转速相同，上、下成对刀刃得以对齐剪切，每个滚筒上均布有6个刀片，其刀片长度方向平行于滚筒轴线。最后对滚筒和刀片进行了设计，其中包括装刀滚筒的外径，内径和宽度以及碎边剪剪刃的主要结构参数:刀刃的圆周直径，刀刃宽度，刀刃长度，刀刃厚度，刀刃倾角等的选择。 该碎边剪传动系统结构比较简单，具有剪切平稳，振动和噪音小，速度高，生产率高的特点。 关键词：双滚筒碎边剪；传动系统；滚筒；刀刃 Abstract This paper mai
nly discusses the structure of the double roller broke
n edge cut tra
nsmissio
n system. Firstly it gives a simply i
nstructio
n of the shear cutter i
n the i
ntroductio
n, I
ncludi
ng its characteristics, the status quo, a
ndworki
ng pri
nciple. The
n i
n the text of the computatio
n part, Firstly calculate the shear force, shear torque a
nd power i
n order to choose the right motor, a
nd the distributio
n a
nd axis of tra
nsmissio
n speed, torque is a
nalyze. The
n desig
n a
nd calculate the axes a
nd the gear. I
ncludi
ng the desig
n of the level 1, level 2 tooth,calculatio
n of the High, middle a
nd low speed axis, the choosi
ng of the keys a
nd the coupli
ng, a
nalyzi
ng the compositio
n of the gearwheel seat, there is a pair of oblique gearwheel of cyli
nder havi
ng the same tooth
number i
n the body of gearwheel seat, make sure roller fixi
ng bitswhich ow
n the same diameter have the same rotatio
nal speed, upper a
nd lower blades ca
n shear belted steel stable, there are 6 razor blades at each cyli
nder a
nd the le
ngth directio
n of the razor blade is parallel i
n the cyli
nder axis. Fi
nally, discuss Exter
nal diameter, i
nter
nal diameter a
ndwidth of roller fixi
ng bits a
nd the mai
n structural parameter of cutti
ng edge of the scrap chopper: The circumfere
nce diameter of the cutti
ng edge, thewidth of the crucial poi
nt, the le
ngth of the crucial poi
nt, the thick
ness of the crucial poi
nt, the i
ncli
natio
n of cutti
ng edge a
nd so o
n. The structure of the tra
nsmissio
n system of double-roller shearer for breakverge of strip is simpler, havi
ng the characteristics of sheari
ng steadily,vibratio
nwith low
noises, high pace, a
nd high productivity. Keywords： Double-roller shearer for breakverge of strip; Tra
nsmissio
n System; Drum; Blade 目录 绪论1 1碎边剪的简介1 2碎边剪的现状： 1 3设计方案： 4 1剪切力的计算和电机的选择6 1.1剪切力的计算： 6 1.2剪切力矩的计算： 6 1.3电动机功率的计算： 9 1.4电动机的选择： 9 2减速器的设计与计算： 10 2.1传动比的分配和轴的转速、转矩的分析计算10 2.1.1滚筒直径的确定10 2.1.2总传动比的分析计算10 2.1.3传动比的分配10 2.2轴和齿轮的设计12 2.2.1一级齿轮的设计12 2.2.2二级齿轮的设计16 2.2.3高速轴的设计计算21 2.2.4中速轴的设计计算24 2.2.5低速轴的设计计算27 2.2.6键连接的选择30 2.2.7连轴器的选择30 3齿轮座的设计32 3.1齿轮设计32 3.2传递轴的设计33 3.2.1与低速轴联接的轴的设计（即IV轴） 33 3.2.2Ⅴ轴的设计： 34 3.2.3轴的校核： 34 3.3键连接的选择36 4滚筒和刀片的设计37 4.1滚筒的设计37 4.1.1滚筒体直径D和宽度B的确定: 37 4.1.2滚筒侧板尺寸的确定: 38 4.2刀片尺寸的确定: 39 结束语41 参考文献42 致谢43