圆弧齿锥齿轮传动设计几何计算.docVIP

圆弧齿锥齿轮传动设计几何计算 输入参数: 齿轮类型:35?格里大端模数m=12mm 齿形角α=20? 森制 径向变位系数齿数Z=18,Z=35 传动比 i=1.944 12x =.29,x=-.29 12 切向变位系数*齿顶高系数h=.85 =35? 中点螺旋角βamx =.015,x=-.015 t1t2 齿顶间隙系数=.339 ,宽度齿宽系数ψR小轮螺旋方向:左旋 *c=.188 b=80mm 序号 项 目 公 式 结 果 1 大端分度圆d d=Zm,d=Zm d=216.00mm, d=420.00mm 112212 δ=arctan(Z/Z),δ=90-11222 分锥角δ =27.216?,δ=62.784? δ12δ 1 3 锥距R R=d/2sinδ=d/2sinδ R=236.144mm 1122 4 齿距p p=πm p=37.699mm 5 齿高h h=(2h*+c*)m h=22.656mm a 6 齿顶高h h=(h*+x)m h=13.680,h=6.720mm aaaa1a27 齿根高h h=(h*+c*-x)m h=8.976,h=15.936mm ffaf1f28 顶隙c c=c*m c=2.26mm =arctg(h/R),θθf1f19 齿根角θ =2.177?,θ=3.861? θff1f2=arctg(h/R) f2f2 =θ,θ=θ(等顶隙θa1f2a2f110 齿顶角θ θ=3.861?,θ=2.177? aa1a2收缩齿) =31.077?, δa111 顶锥角δ δ=δ+θ,δ=δ+θ aa11f2a22f1δ=64.961? a2 =25.039?, δf112 根锥角δ δ=δ-θ,δ=δ-θ ff11f1f22f2δ=58.923? f2 =d+2hcosδda11a113 顶圆直径d =240.33,d=426.15mm daa1a2,d=d+2hcosδ, 1a22a22 分锥顶点至轮冠距=d/2-hsinδAk12a114 =203.74,A=102.02mm Ak1k2离A ,=d/2-hsinδ k11a22 齿宽中点分度圆直=d-bsinδ,d=d-bsindm111m2215 =179.412mm,d=348.857mm dm1m2径d δ m2 16 齿宽中点模数m m=d/z=d/z m=9.967mm mmm11m22m 中点分度圆法向齿=(0.5πcosβ+2xtanαsmnm17 =15.079mm,s=10.572mm smn1mn2厚s +x)m mntm 中点法向齿厚半角=2.873?, ψmn1218 =ssinδcosβ/d ψmnmnmmψ ψ=.533? mnmn2 中点分圆法向弦齿219 =s(1-ψ/6) s=15.073mm,s=10.571mm smnmnmnmn1mn2厚s mn 中点分圆法向弦齿20 =h-btanθ/2+sψ/4 h=11.170mm,h=5.224mm hamaamnmnam1am2高h am 321 当量齿数Z Z=Z/cosδcosβ Z=36.824,Z=139.228 vvmv1v2 =[Z(tanα-tanαεα1vat1 )/cosδ t1 +Z(tanα-tanα2vat2 )/cosδ]/2π t222 端面重合度ε =1.270 εαα其中:tanα=(tanα/cosβt ) m cosα=[Zcosαvat /(Z+2(h*+x)cosδ)] ta 23 齿线重合度ε ε=btanβπ/m ε=1.789 ββmmβ 1/22224 总重合度 ε=(ε+ε) ε=2.194 αβ