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ANSI B92.1 SAE花键标准及常用花键参数

ANSI B92.1 SAE花键标准及常用花键参数
ANSI B92.1 SAE花键标准及常用花键参数

ANSI B92.1-1970 SAE花键标准

INVOLUTE SPLINES

渐开线花键

Form Circle is the circle which defines the deepest points of involute form control of the tooth profile. This circle along with the tooth tip circle (or start of chamfer circle) determines the limits of tooth profile requiring control. It is located near the major circle on the internal spline and near the minor circle on the external spline.

渐开线终止圆:渐开线终止圆是用于控制齿廓上渐开线的极限距离的圆。渐开线终止圆与齿顶圆(或者修缘线的起点所在的圆)共同限制了所要求控制的渐开线齿廓的范围。渐开线终止圆的位置靠近内花键的大圆(齿根圆)或者外花键的小圆(齿根圆)。

译者注:这段话的意思是:只有在渐开线终止圆与齿顶圆(或者修缘线的起点所在的圆)之间的花键的齿形为渐开线齿形,其余部分不一定按照渐开线成形。

译者注2:在《GB/T 3478.1-1995 圆柱直齿渐开线花键》中,将Form Cycle定义为两个圆:内花键的渐开线终止圆和外花键的渐开线起始圆。而在本标准中,将这两个圆统称为Form Cycle,译者将Form Cycle翻译为渐开线终止圆。

Form Clearance (c F) is the radial depth of involute profile beyond the depth of engagement with the mating part. It allows for looseness between mating splines and for eccentricities between the minor circle (internal), the major circle (external), and their respective pitch circles.

齿形裕度:齿形裕度(c F)是相互配合的内、外花键的渐开线齿廓在径向方向上的间隙。齿形裕度是的相互配合的内、外花键之间能够存在一定松动,并且是的内花键的小圆(齿顶圆)、外花键的大圆(齿顶圆)、以及内、外花键各自的节圆之间存在一定的偏心距。

Form Diameter (D Fe, D Fi) the diameter of the form circle.

渐开线终止圆直径(D Fe, D Fi):渐开线终止圆所在圆的直径。

Internal Spline is a spline formed on the inner surface of a cylinder.

内花键:在圆柱体的孔的内表面形成的花键。

Involute Spline is one having teeth with involute profiles.

渐开线花键:花键的键齿的齿形为渐开线形式的花键。

Lead Variation is the variation of the direction of the spline tooth from its intended direction parallel to the reference axis, also including parallelism and alignment variations (see Fig. 1a). Note: Straight (nonhelical) splines have an infinite lead.

导向公差:导向公差是花键的键齿的实际齿线与花键的参考轴线之间的平行度公差,这个公差包括平行度公差和圆周阵列公差(见图Fig.1a)。注意:直齿花键(非螺旋花键)的导向公差为无穷大。

译者注:这一条解释有待斟酌。

Length of Engagement (L q) is the axial length of contact between mating splines.

结合长度(L q):结合长度是两个相互配合的内、外花键之间的接触段的长度。

Machining Tolerance (m) is the permissible variation in actual space width or actual tooth thickness.

加工公差(m):加工公差是花键的实际齿槽宽和实际齿厚的允许的变动量。

译者注:在《GB/T 3478.1-1995 圆柱直齿渐开线花键》中,将加工公差定义为T。

Major Circle is the circle formed by the outermost surface of the spline. It is the outside circle (tooth tip circle) of the external spline or the root circle of the internal spline.

大圆:大圆是花键的最大齿形面的包络圆。它是外花键的外圆(齿顶圆),和内花键的齿根圆。

Major Diameter (D o, D ri) is the diameter of the major circle.

大圆直径:大圆直径(D o, D ri)是大圆所在圆的直径。

译者注:在《GB/T 3478.1-1995 圆柱直齿渐开线花键》中,将大圆直径定义为:内花键D ei、外花键D ee。

Minor Circle is the circle formed by the innermost surface of the spline. It is the root circle of the external spline or the inside circle (tooth tip circle) of the internal spline.

小圆:小圆是花键的最小齿形面的排斥圆。它是外花键的齿根圆,和内花键的内圆(齿顶圆)。

Minor Diameter (D re, D i) is the diameter of the minor circle.

小圆直径:小圆直径(D re, D i)是小圆所在圆的直径。

译者注:在《GB/T 3478.1-1995 圆柱直齿渐开线花键》中,将小圆直径定义为:内花键D ii、外花键D ie。

Nominal Clearance is the actual space width of an internal spline minus the actual tooth thickness of the mating external spline. It does not define the fit between mating members, because of the effect of variations.

理论侧隙:理论侧隙是内花键的实际齿槽宽减去与之相互配合的外花键的实际齿厚所得的值。由于内、外花键在配合时会产生一定的公差,所以理论侧隙不能够用于确定相互配合的内、外花键之间的间隙。

Out of Roundness is the variation of the spline from a true circular configuration.

圆度:圆度是花键与真圆的圆廓之间的公差。

Parallelism Variation is the variation of parallelism of a single spline tooth with respect to any other single spline tooth (see Fig. 1b).

平行度公差:平行度公差是单根键齿相对其它的单根键齿之间的平行度公差。(见图Fig.1b)

Pitch (P/P s) is a combination number of a one-to-two ratio indicating the spline proportions; the upper or first number is the diametral pitch, the lower or second number is the stub pitch and denotes, as that fractional part of an inch, the basic radial length of engagement, both above and below the pitch circle.

径节分数(P/P s):径节分数是由两个数组成的一个比率,它表示的是花键的比例;设这个比率为A/B (这个分数用英寸表示),则在这个分数中第一个数(分子)A表示的是花键的径节,第二个数(分母)B表示的是残余径节,径节表示的是在节圆上方的键齿在半径方向上的结合长度,残余径节表示的是在节圆下方的键齿在半径方向上的结合长度。

译者注:可以理解为节圆将整个花键键齿一分为二,节圆上方的键齿的齿高为径节,节圆下方的键齿的齿高为残余径节。在实际计算时要考虑到渐开线终止圆与修缘线所在圆对键齿有效结合齿高的影响,并将其扣除。

Pitch Circle is the reference circle from which all transverse spline tooth dimensions are constructed.

节圆:节圆是一个参考圆,花键的键齿的所有的横向尺寸都是以节圆为基础开始计算的。

Pitch Diameter (D) is the diameter of the pitch circle.

节圆直径(D):节圆直径是节圆所在圆的直径。

Pitch Point is the intersection of the spline tooth profile with the pitch circle.

节点:节点是键齿的齿廓与节圆的交点。

Pressure Angle (φ) is the angle between a line tangent to an involute and a radial line through the point of tangency. Unless otherwise specified, it is the standard pressure angle.

压力角(φ):压力角是花键的渐开线齿廓的切线与通过切点的半径所组成的夹角。除非有特殊说明,压力角通常是指标准压力角。

Profile Variation is any variation from the specified tooth profile normal to the flank.

齿形误差:齿形误差是特定的齿廓相对齿侧的任何公差。

译者注:这一条解释有待斟酌。

Spline is a machine element consisting of integral keys (spline teeth) or keyways (spaces) equally spaced around a circle or portion thereof.

花键:花键是一种机械零件,它由凸出的齿(键齿)或凹下的沟(齿槽)组成,键齿和键槽等分一个完成圆或者部分圆弧。

Standard (Main) Pressure Angle (φD) is the pressure angle at the specified pitch diameter.

标准压力角(φD)(主压力角):标准压力角是指特定在节圆上的压力角。

Stub Pitch (P s) is a number used to denote the radial distance from the pitch circle to the major circle of the external spline and from the pitch circle to the minor circleof the internal spline. The stub pitch for splines in this standard is twice the diametral pitch.

残余径节(P s):残余径节是一个数,它用于表示节圆与外花键的大圆或内花键的小圆之间的半径差。在本标准中,花键的残余径节是径节的2倍。

Total Index Variation is the greatest difference in any two teeth (adjacent or otherwise) between the actual and the perfect spacing of the tooth profiles.

齿距累计误差:齿距累计误差是任意两齿的实际弧长与理论弧长之差的最大绝对值。

译者注:这一条解释有待斟酌。

Total Tolerance (m +λ) is the machining tolerance plus the variation allowance.

总公差(m +λ):总公差是加工公差与综合公差之和。

译者注:在《GB/T 3478.1-1995 圆柱直齿渐开线花键》中,将总公差定义为:T+λ。

Variation Allowance (λ) is the permissible effective variation.

综合公差(λ):综合公差是在允许范围内的综合的公差。

Tooth Proportions.—There are 17 pitches: 2.5/5, 3/6, 4/8, 5/10, 6/12, 8/16, 10/20, 12/24, 16/32, 20/40, 24/48, 32/64, 40/80, 48/96, 64/128, 80/160, and 128/256. The

numerator in this fractional designation is known as the diametral pitch and controls the pitch diameter; the denominator, which is always double the numerator, is known as the stub pitch and controls the tooth depth. For convenience in calculation, only the numerator is used in the formulas given and is designated as P. Diametral pitch, as in gears, means the number of teeth per inch of pitch diameter.

齿比——一共有17种齿比:2.5/5,3/6,4/8,5/10,6/12,8/16,10/20,12/24,16/32,20/40,24/48,32/64,40/80,48/96,64/128,80/160和128/256。在这一系列的分数中的分子是径节,径节的大小决定了节圆的直径;而分数中的分母通常是分子的两倍,分母是残余径节,它的作用是控制齿槽的深度。为了方便计算,在所有的公式中都使用分子作为计算参数,并且与齿轮的表示方式一样定义为径节P尺寸,也就是在节圆上,每英寸长度上的齿数。

DIN5480-2006花键计算表格(超级好用)

shaft hub Reference diameter dB 66module m 0.80.8number of teeth z 6-6pressure angle α3030pitch p 2.51327 2.51327 addendum modification x*m 0.16-0.16addendum if basic rack profile h ap 0.360.36addendum of tool basic rack profile h fp0dedendum of basic rack profile h fp 0.440.44tooth depth of basic rack profile h p 0.80.8bottom clearance of basic rack profile c p 0.080.08root fillet radius of basic rack profile ρfp 0.1280.128reference circle diameter d 4.8-4.8base diameter d b 4.157-4.157tip circl e diameter o f shaft d a1 5.84root circle diameter of shaft d f1 4.24minimum form clearance C fmin 0.025base from circle diameter of shaft d Ff1 4.35 tip circle diameter of hub d a2-4.4root circle diameter of hub d f2-6minimum form clearance C fmin 0.025?root form circle diameter of hub d Ff2-5.89 form clearance of basic rack profile C FP 0.0160.016 nominal space width on hub e 2 1.441min. effective toleraence limit e vmin 1.441min. actual reference mark e min 1.467max. actual tolerance limit e max 1.512 nominal shaft tooth thickness s 1 1.441max. effective tolerance limit s vmax 1.409max. actual reference mark s max 1.383min. actual tolerance limit s min 1.338 length L 95100tolerance class 1010 deviation series d H tooth thickness/spac e width A s /A e -0.0320.000tooth thickness tolerance,actual space width T act 0.0450.045tooth thickness tolerance,effective space width T eff 0.0260.026total tooth tolerance/space widith tolerance T G 0.0710.071individual pitch deviation fp 0.0190.019total pitch deviation Fp 0.0450.045total profile deviation F α0.0230.023total helix deviation F β 0.0150.015 broaching DIN5480

渐开线花键计算公式

渐开线花键: 键齿在圆柱(或圆锥)面上且齿形为渐开线的花键称为渐开线花键。渐开线花键连接采用齿形定心,渐开线花键是花键的一种,而传递转矩的部件一般通过键和花键联接。普遍采用的是矩形花键和渐开线花键。渐开线花键应用日趋广泛。这是由于渐开线花键较矩形花键有许多优点,如齿数多、齿端,齿根部厚,承载能力强,易自动定心,安装精度高。相同外形尺寸下花键小径大,有利于增加轴的刚度。渐开线花键便于采用冷搓、冷打、冷挤等无切屑加工工艺方法,生产效率高,精度高,并且节约材料。 渐开线花键计算公式: 对于铣切花键工序,由于与其配合的主动齿轮靠大径过盈配合,过盈量0.006~0.013mm,小径有间隙,所以可采用通用三面刃铣刀或片铣刀对小径进行加工至近似圆弧。 加工过程按工步叙述如下: 1)零件装夹在卧铣分度头上,用半顶尖顶紧。 2)调整顶尖位置,外圆高度差≤0.01mm。 3)用百分表测定外圆跳动(≤0.05mm)。 4)按分度头的中心高度划出键宽中心线,转180°验证中心线(误差基本不变)。 5)留出磨花键键宽余量0.4mm,分别划出键宽为6.4mm的六等分键宽线。 6)将键宽中心线转过90°至最高点。

7)按键宽线用厚6mm的三面刃铣刀铣6个键宽一侧,工作台移动“键宽+刀宽”距离,铣另一侧。 8)转动分度头,对键槽进行逼近圆弧加工。 下文对加工结果作一分析和讨论: 1)侧面铣切时选用的通用三面刃铣刀要根据花键的具体参数及三面刃铣刀的规格来决定。设三面刃铣刀的宽度为B,应满足:B<2hcos(180°/N)(1) 式中:h——每个键槽上小径的宽度; N——花键的键数。 铣刀宽度B的值不能过大,以免铣切键槽的另一侧。其中h值可用下式计算: h≈(πd-NL)/N(2) 式中:d——花键小径; L——留有磨削花键键侧余量的花键键宽。 将(2)式代入(1)式,即有 B<((πd-NL)/(N/2))*cos(180°/N)(3) 2)修正小径应根据h选定三面刃铣刀或片铣刀,加工成近似圆弧。 3)若以小径定心,则需留出直径磨量0.2~0.3mm。 4)用三面刃铣刀及片铣刀加工花键,能满足设计要求,降低制造成本,提高中、小批量生产的效率。

渐开线花键计算公式

30°平齿根花键计算书第1页 模数 m = 3 齿数 z = 15 标准压力角αD = 30° 配合代号:H7/h7 分度圆直径 D = m×z = 45 基圆直径 Db = m×z×cos(αD) = 38.9711 周节 p = π×m = 9.42477796076937 内花键大径 Dei = m×(z+1.5) = 49.5 外花键作用齿厚上偏差 esv = 0 (根据<<机械传动设计手册>>1463页表9-1-49或由公差代号计算) 外花键渐开线起始圆直径最大值: DFemax = 2×((0.5Db)^2+(0.5Dsin(αD)-(hs-0.5esv/tan(αD))/sin(αD))^2)^0.5 = 41.8669 (其中hs = 0.6m = 1.8) 内花键小径 Dii = DFemax+2CF) = 42.47 (其中CF = 0.1m = .3) 内花键基本齿槽宽 E = 0.5πm = 4.71238898 外花键基本齿厚 S = 0.5πm = 4.71238898 内花键: 内花键总公差 T+λ = 40i*+160i** = 179 其中i* = 0.45(D)^(1/3) + 0.001D (D = (30×50)^0.5 = 38.7298334620742) i** = 0.45(E)^(1/3) + 0.001E (E = (3×6)^0.5 = 4.24264068711928) 周节累积公差 Fp = 7.1(L)^0.5 + 18 = .078 其中分度圆周长之半 L = πmz/2 = 70.6858347057703 齿形公差 ff = 6.3ψf + 40 = .062 其中公差因数ψf = m + 0.0125D = 3.48412291827593 齿向公差 Fβ = 2.0×(g)^0.5 + 10 = .023 其中花键长度 g = 40 综合公差λ= 0.6((Fp)^2 + (ff)^2 + (Fβ)^2)^0.5 = .061 作用齿槽宽最小值 Evmin = 0.5πm = 4.712 实际齿槽宽最大值 Emax = Evmin + (T+λ) = 4.891 实际齿槽宽最小值 Emin = Evmin + λ =4.773 作用齿槽宽最大值 Evmax = Emax - λ = 4.83 外花键: 外花键大径 Dee = m×(z + 1) = 48 外花键小径 Die = m×(z - 1.5) = 40.5 外花键总公差 T+λ = 40i*+160i** = 179 其中i* = 0.45(D)^(1/3) + 0.001D (D = (30×50)^0.5 = 38.7298334620742) i** = 0.45(E)^(1/3) + 0.001E (E = (3×6)^0.5 = 4.24264068711928) 周节累积公差 Fp = 7.1(L)^0.5 + 18 = .078

径节制美制花键计算程序.docx

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

渐开线花键完整计算

齿数Z / 44模数M / 2压力角ao30花键组合长度lmm32外花键外径deemm90外花键短径模具mm84.4内花键短径diimm86根圆角半径ρmm0.8渐开线起始圆直径dfemm85.7工作齿高度h wmm2全齿高度hmm2.8弦齿厚度sfnmm4.297319输入扭矩tn.m11458.8材料抗拉强度σbmpa980材料屈服强度σsma835安全系数SH / 1.25齿根弯曲强度安全系数SF / 1服务系数K1 / 1.25齿隙系数K2 / 1.1分配系数K3 / 1.1轴向偏心载荷系数K4 / 1.5应力转换系数K / 0.15齿磨损允许的压应力σh1mpa10齿磨损允许的压应力σh2mpa9.4弯矩mbn.m0作用直径dhmm85 .18773应力集中系数αTN / 2.238703公称切向力ftn260427.3单位载荷wn / mm213.5764剪应力τ渐开线花键如下:tnmpa94.401321,齿面的允许接触强度[σH] mpa294.4353σhmpa106.78822,齿根的允许弯曲强度[σF] mpa431.9559计算渐开线花键的承载力1.花键对的基本参数,齿表面压应力(计算值),2。工作条件参数3,检查结果σfmpa168.26663,齿根的容许剪切强度[τF] mpa215.978,τfmaxmpa211.33654外部花键的抗扭强度(允许值)[σv] mpa368.0441σvmpa163.5079齿表面摩擦的允许压应力[σH1] mpa110σhmpa106.7882齿表面摩擦的允

许压应力[σH2] mpa9 .4σhmpa106.7882b,花键对的耐磨性很长,并且齿表面的压应力(计算值)不符合要求。5当花键对工作108个周期时,齿面的压应力(计算值)满足要求。齿根的最大剪切应力(计算值)满足要求。等效应力(计算值)满足要求。弯曲应力(计算值)满足淬火和回火淬火淬火95110135170185185205碳钢化碳碳化碳化碳化碳化碳化碳钢化碳镍铁合金的三重淬火0.36363636364≤1.0> 1.0-1.5> 1.5-2.2.1.1-1.31.2-1.1.3-1.1.2-1.1.2-1.1.2 -1.1.2-1.3-1.71.6-2.41.7-2.91.4-2.91.8-2.81.9-3.51.5-2.12.0-3-3.22.1-4.11.11.2-1.61.3-2.11 .1 1.4.4.4- 2.11.4-2.4-2.1.2-1.1.1.1.1.1.- 2.41.3-1.81.5-2.51.6- 3.01.4-2.01.7-2.91.8-3.61.5- 2.21.9- 3.32.0- 4.21.6-2.42.1-3.62.2-4.81.3-2.01.4-2.81.5-3.41.4-2.21.6-3.21.7-屈服强度[σS] 83578535545抗拉强度[σb] 1080980600,材料的机械性能等级机械性能等级20ccrmnti40cr> 30-50> 50-80> 80-120> 120机械性能等级20ccrmnti40cr> 30-50> 50-80> 80-120> 120系列或模数/ mm平均圆直径DM灯系列或m≤2≤30> 30> 30> 50> 50> 50> 50> 50-120> 120> 120或模量/ mm平均圆直径DM灯系列或m ≤2≤30> 30> 30> 50> 50> 50>

渐开线花键计算公式

渐开线花键计算公式 30°平齿根花键计算书第1页 模数m = 3 齿数z = 15 标准压力角αD = 30° 配合代号:H7/h7 分度圆直径D = m×z = 45 基圆直径Db = m×z×cos(αD) = 38.9711 周节p = π×m = 9.42477796076937 内花键大径Dei = m×(z+1.5) = 49.5 外花键作用齿厚上偏差esv = 0 (根据<<机械传动设计手册>>1463页表9-1-49或由公差代号计算) 外花键渐开线起始圆直径最大值: DFemax = 2×((0.5Db)^2+(0.5Dsin(αD)-(hs-0.5esv/tan(αD))/sin(αD))^2)^0.5 = 41.8669 (其中hs = 0.6m = 1.8) 内花键小径Dii = DFemax+2CF) = 42.47 (其中CF = 0.1m = .3) 内花键基本齿槽宽E = 0.5πm = 4.71238898 外花键基本齿厚S = 0.5πm = 4.71238898 内花键: 内花键总公差T+λ= 40i*+160i** = 179 其中i* = 0.45(D)^(1/3) + 0.001D (D = (30×50)^0.5 = 38.7298334620742) i** = 0.45(E)^(1/3) + 0.001E (E = (3×6)^0.5 = 4.24264068711928) 周节累积公差Fp = 7.1(L)^0.5 + 18 = .078 其中分度圆周长之半L = πmz/2 = 70.6858347057703 齿形公差ff = 6.3ψf + 40 = .062 其中公差因数ψf = m + 0.0125D = 3.48412291827593 齿向公差Fβ= 2.0×(g)^0.5 + 10 = .023 其中花键长度g = 40 综合公差λ= 0.6((Fp)^2 + (ff)^2 + (Fβ)^2)^0.5 = .061 作用齿槽宽最小值Evmin = 0.5πm = 4.712 实际齿槽宽最大值Emax = Evmin + (T+λ) = 4.891 实际齿槽宽最小值Emin = Evmin + λ=4.773 作用齿槽宽最大值Evmax = Emax - λ= 4.83 外花键: 外花键大径Dee = m×(z + 1) = 48 外花键小径Die = m×(z - 1.5) = 40.5 外花键总公差T+λ= 40i*+160i** = 179 其中i* = 0.45(D)^(1/3) + 0.001D (D = (30×50)^0.5 = 38.7298334620742)

花键计算

30°渐开线花键的设计计算 已知: m=1.25 Z=24 αD=30° 1、分度圆直径D: D=mZ=1.25*24=30 2、基圆直径Db: Db=mZCOSαD=1.25*24*cos30=25.98 3、齿距p: p=πm=1.25π=3.927 4、内花键大径基本尺寸Dei: Dei=m(Z+1.5)=1.25*(24+1.5)=31.875 5、内花键大径下偏差: 0 6、内花键大径公差:IT12-14,取IT12,公差值0.25 7、内花键渐开线终止圆直径最小值DFimin: DFimin=m(Z+1)+2CF=1.25*(24+1)+2*0.125=31.5 8、内花键小径基本尺寸Dii: Dii=DFemax+2CF=28.62+2*0.125=28.87 9、内花键小径极限偏差:查机械设计手册,为 10、基本齿槽宽E: E=0.5πm=0.5*π*1.25=1.963 11、作用齿槽宽EV: EV=0.5πm=1.963 12、作用齿槽宽最小值EVmin: EVmin=0.5πm=1.963 13、实际齿槽宽最大值Emax: Emax=EVmin+(Τ+λ)=1.963+0.137=2.100, 其中Τ+λ查机械设计手册,为0.137 14、实际齿槽宽最小值Emin: Emin=EVmin+λ=1.963+0.048=2.011 其中λ值查机械设计手册,为0.048 15、作用齿槽宽最大值EVmax: EVmax=Emax-λ=2.100-0.048=2.052 16、外花键作用齿厚上偏差esV:查机械设计手册,为0 17、外花键大径基本尺寸Dee:Dee=m(Z+1)=1.25*(24+1)=31.25 18、外花键大径上偏差esV/tanαD: 0 19、外花键大径公差:查机械设计手册,为0.16 20、外花键渐开线起始圆直径最大值DFemax:

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