主要参数端面模数蜗杆头数蜗轮齿数传动比中心距齿顶隙蜗杆直径系数蜗杆导程角蜗杆导程蜗杆齿顶高蜗杆齿根高蜗杆齿顶圆直径蜗杆分度圆直径蜗杆齿根圆直径mZ1Z2i=Z2/Z1aC=cm (c=0.2)qγ=atan(z1/q)pz=px*z1=pi*z1*mha1=ha*mhf1=(ha+c)mda1=m(q+2)d1=qmdf1=d1-2hf1z1=1,2 b1>=(12+0.1z2)mz1=3,4 b1>=(13+0.1z2)mpx=pi*msx=0.5pi*mαsn=sx*cosγαn=atan(tanα*cosγ)21262638.50.4(38.29)蜗杆参数蜗杆螺纹部份长度蜗杆轴向齿距蜗杆轴向齿厚蜗杆轴向齿形角蜗杆法向齿厚蜗杆法向齿形角12.290.081194.651736014°39′6″6.2831922.428.5824.5819.7829.231.26.283193.141590.3490720°3.131240.3480119.939320319°56′21″蜗轮分度圆直径蜗轮齿根圆直径蜗轮齿根高蜗轮喉圆直径蜗轮最大外圆直径蜗轮参数蜗轮喉圆母圆半径蜗轮齿根圆弧半径蜗轮齿宽角蜗轮厚度d2=z2mdf2=d2-2hf2hf2=m(ha-x2+c)da2=(z2+2+2x2)mz1=1 da2max<=da2+2mz1=2,3 da2max<=da2+1.5mz1=4 da2max<=da2+mrg2=a-da2/2rf2=0.5da1+0.2mθ＝2*Asin(b2/d1)b25247.622.1956.4260.4259.4258.4210.2914.69#NUM!32(56)蜗轮变位系数x2=(a/m)-(d1+d2/2m)0.105-1<=x2<=0.5，尽量取负值