径节制美制花键计算程序.docx
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基本参数
压力角α
径节
参数
节圆直径D(pitch diameter )
基圆直径D b(base diameter )
内花键大径D ri,平齿根(major diameter,flat root)
大径D ri , 圆齿根
(major diameter,fillet root)
内花键型圆直径D Fi ,(form diameter)
内花键最小径D imin (minimum minor diamete)
小径D imax (maximum minor diameter)
外花键小径D re
(minor diameter )
s7max(maximum
actual space width)
45
24/48
计算数值
20.1083
14.2187
21.7088
21.6072
21.3783
19.0500
19.1598
17.7554
0.0710
30度SAE花键计
齿数N
节距P
公式
N/P
Dcos30°
(N+1.35)/P+0.004+ ΔD ri
(N+1.35)/P+ ΔD ri
(N+1)/P+2C f
(N-1)/P
D
imin
+T
DII
(N-2.10 )/P- ΔD re -
es/tan30 °
s vmin +f(m+λ)
s6max(maximum
actual space width)
s5max(maximum
actual space width)
s4max(maximum
actual space width)
外花键最大有效齿厚
t vmax(maximum
effective tooth thickness)
最小齿厚
t4min(minimum actual tooth thickness)
最小齿厚
t5min(minimum actual tooth thickness)
最小齿厚
t6min(minimum actual tooth thickness)
最小齿厚
t7min(minimum actual tooth thickness)
最大外径D omax(maximum major diamete )最小外
径
D omin
(mini
mum
major
diamet
er )
0.0693
0.0682
0.0674
1.6624
1.5523
1.5320
1.5039
1.4619
21.1064
20.9966
s vmin +f(m+λ)
s vmin +f(m+λ)
s vmin +f(m+λ)
π /2P-es
t vmax -f(m+ λ)
t vmax -f(m+ λ)
t vmax -f(m+ λ)
t vmax -f(m+ λ)
(N+1)/P-es/tan30 °
D
omax
-T
DII
外花键型圆直径D Fe(form
D imin -2C f -escos30 °
18.7957
diamete )
花键计算
19
24
参数计算数值公式
常数π 3.1416
花键间距 m(Spline Pitch)0.0012330.07N+11
花键间距λ (Spline Pitch)0.0015280.12N+13
齿根直径公差ΔD ri (change
in root diameter for0.0028(m+λ)/tan30°total tolerances)
C f0.00420.1/P
小径直径公差T DII(minor
0.0043360/P 0.667
diameter tolerance)
大径直径公差T DEE(minor
0.0043360/P 0.667
diameter tolerance)
s vmin(minimum effective
0.0655π/2P
space width)
齿根直径公差ΔD re (change
in root diameter for0.0028(m+λ)/tan30°total tolerances)
es(minimum
effective clearance)
f(multiplying factor for
spline
tolerance class )
rfe 最小圆角半径,平齿根(minimum fillet
radius )
rfe 最小圆角半径,圆齿根(minimum fillet
radius )
Fβ最大允许变位( maximum allowable lead
variation)
最大轮廓 F fp (maximum allowable positive
profile variation)
最大轮廓 F fm(maximum allowable negative profilevariation)
Fp(maximum allowable
total index variation)
内花键最小有效键槽宽s vmin (minimum effective
space width 30 deg
spline )
s
7max 0.0024
2.0000
0.1588
0.2646
0.0004
0.0003
-0.0005
0.0016
1.6624
1.8027
class d:D0.44/380
class e:D0.44/610
0.0015
class f:D0.44/1220
class h:0
class 4:0.71 class
5:1.00 class
6:1.40 class
7:2.00
0.15/P
0.25/P
Lg+3(Lg≥1)
Lg=0.9
2.7Lg+1.4(Lg <1)
2.2+14.7/P
-(4+17/P)
λ/0.6-2F fp -F β
π/2P
s vmin+f(m+λ)