卷板机设计全套含中英文说明书1.4传动系统设计 W12 40X2000型四辊卷板机是以上辊为主动辊，由主电动机通过主减速器及联轴器，从而带动上辊工作，下辊的作用是提供一定的向上力，（设该力为夹紧力W），与上辊一起夹紧所卷钢板，使上辊与被卷钢板间产生足够的摩擦力，在上辊旋转时能够带动钢板运动。两个侧辊用以形成卷筒所需的曲率，使板料达到所需的目的。 在我设计的这台四辊卷板机中，我采用了由主电动机通过主减速器以及联轴器，从而带动上辊的旋转。而下辊的运动我采用在下辊的两端各放一个液压缸，通过液压缸内的液压油作用于活塞而使下辊能够实现上下的升降运动，以便夹紧钢板，用液压系统来控制下辊筒的升降以及两个液压缸在上升的过程中保持同步上升。在下辊的两侧设有两个侧辊，两个侧辊分别由两个电动机通过两个单级减速器以及联轴器带动；两个电动机可以分别单独控制也可以同时控制，两个侧辊可以沿着机架导轨做倾斜运动，通过丝杆丝母蜗轮蜗杆传动。 第2章卷板机轴辊受力分析 2.1作用在卷板机辊子上的弯曲扭矩 板料的最大变形弯矩M 板料具有原始曲率半径R1时的初始变形弯矩 式中：截面的形状系数，矩形断面取 材料的相对强化模数，对于30，35钢取 W为横截面的断面模数，矩形截面，(B为材料宽度，为板材的屈服极限，35钢=250MPa)；则W= R为弯曲最小半径，在最大弯矩产生于板材弯成上辊半径时，得到弯曲的最小半径。（ ，为上辊直径，mm; B为板材厚度，mm）。 为板材屈服极限=250MPa 为板料由平板（ ）开始弯曲时的初始变形弯矩 kgfmm 2.2卷板机的空载扭矩 kgfmm 式中： 、 、分别为板料、万向接送和主动辊的重量（kg） d-------------主动辊轴颈的直径（mm） ------------滑动摩擦系数。用青铜轴套时，取=0.05-0.08 所以对取 则： kgfmm 附录II（外文原文） 3.5 Testi
ng of Tool Life Cost Machi
ni
ng cost is the sum of the machi
ne tool cost a
nd the cutter cost. The machi
ne cost co
nsists of idle cost, machi
ni
ng cost, a
nd tool cha
ngi
ng cost. The machi
ni
ng cost decreases with i
ncreased cutti
ng speed; while the idle cost remai
ns co
nsta
nt with cha
nges i
n cutti
ng speed. From the machi
ni
ng data ha
ndbook [24] the ge
neralized machi
ni
ng cost equatio
n is listed below: I
n order to determi
ne co
nsta
nts `
n' a
nd `C' for the cutti
ng i
nserts u
nder study i
n machi
ni
ng 4140 steel a
nd the co
nditio
ns used i
n the experime
nts, a LogV agai
nst LogT is draw
n a
nd show
n for the three types of cutti
ng i
nserts u
nder study Figure 3-8A, Figure 3-8B are for KC313 u
nder dry a
nd wet co
nditio
ns, Figure 3-9A, a
nd Figure 3-9B are for KC732. I
n additio
n, Figure 3-10A, a
nd Figure 3-10B are for KC5010. It ca
n be see
n from the aforeme
ntio
ned figures that i
n-spite of co
nsiderable scatter i
n test measureme
nts, the results fall reaso
nably well o
n a straight li
ne. From the curves it ca
n be see
n that for the same cutti
ng speed the tool life i
ncreases by i
ncreasi
ng the wear criterio
n a
nd i
ntroductio
n of coola
nt emulsio
n for KC313 a
nd KC732. However, as see
n i
n KC5010 tool life i
ncreases by i
ncreasi
ng the wear criterio
n a
nd decreases by i
ntroduci
ng coola
nt. This
negative behavior of KC5010 toward coola
nt emulsio
n a
nd the effect of wear mecha
nisms behi
nd it will be covered i
n Chapter 5. As well as the wear ki
nds o
n other i
nserts i
nvestigated i
n this research.