[degrees]alpha=20 压力角
9 z0 k; y* z' d+ C0 I5 i9 p; n[mm]b=15 齿宽
: t" [. N5 i E6 ]. lcx=0.25???3 S9 R) O* I4 F ~3 R* G
[mm]d=m*z$ I! @& j U5 L% R6 w
[mm]da=d+2*ha
" L' {1 ^$ v# Z/ K. e5 w; [( v% o[mm]db=d*cos(alpha)2 m" g; i( {0 w7 f, c
[mm]df=d-2*hf
9 k, s7 e# @0 c4 d6 T0 K[degrees]fi=360/(z*4)7 Z) b7 t) R0 h6 F2 k: q
[mm]ha=(hax+x)*m: C' ^, w: m2 J0 P( X+ d
hax=1???
/ Z9 d O9 ?7 l; ~" `[mm]hf=(hax+cx-x)*m9 c A0 [+ F) R& G O8 |- C" Q4 e
[mm]m=2.55 M; D- [3 y. L! h$ Y
pi=3.1416???
! ]6 Q1 [# ~6 B" D/ L% W5 v9 ^4 Tt=0???5 s) z, I; k4 A
[degrees]theta=90*t???, h1 L7 n5 {. H6 L% I j% f
x=0??1 h! }/ F! h( C' |1 X$ i, ?' Q% g
xt=db*cos(theta)/2+sin(theta)*pi*db*t/4, T; f6 w8 w! v0 b9 l. ?; h
yt=db*sin(theta)/2-cos(theta)*pi*db*t/4
4 X/ w& H5 L/ S2 B5 S1 Pz=17???5 x: r0 K7 x: r0 |. W
zt=0??? |