ANSIB92.1SAE花键标准及常用花键参数.doc

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1、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

2、the major circle on the in ter nal spli ne and n ear the minor circle on the exter nal spli ne.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

3、.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 Cleara nee (cf) is the radial depth of in volute profile bey ond the depth ofen gageme nt with the mati ng part. It allows for loose ness betwee n mati ng spli nes andfor ecce ntricitie

4、s betwee n the minor circle (in ter nal), the major circle (exter nal), and their respective pitch circles.齿形裕度:齿形裕度(CF)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(DFe, D

5、Fi):渐开线终止圆所在圆的直径。In ter nal Spli ne is a spli ne formed on the inner surface of a cyli nder.内花键:在圆柱体的孔的内表面形成的花键。In volute Spli ne is one hav ing teeth with in volute profiles.渐开线花键:花键的键齿的齿形为渐开线形式的花键。Lead Variati on is the variati on of the directi on of the spli ne tooth from its inten ded directi o

6、n parallel to the reference axis, also in cludi ng parallelism and alig nment variati ons (see Fig. 1a). Note: Straight (non helical) spli nes have an infin ite 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。Len gth of En gageme nt (L

7、 q) is the axial le ngth of con tact betwee n mati ng spli nes.结合长度(Lq):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 actualtooth thick ness.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 ci

8、rcle formed by the outermost surface of the spline. It is the outsidecircle (tooth tip circle) of the exter nal spli ne or the root circle of the in ter nal spli ne.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(Do, Dri)是大圆所在圆的直径。译者

9、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Dei、外花键D ee。Minor Circle is the circle formed by the innermost surface of the spline. It is the rootcircle of the external spli ne or the in side circle (tooth tip circle) of the in ter nal spli ne.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

10、re, D i) is the diameter of the minor circle.小圆直径:小圆直径(Dre, 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Dii、外花键Die。Nominal Clearanee 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

11、 members, because of the effect of variati ons.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 o

12、f a single spline tooth with respect to any other sin gle spli ne 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 comb in ati on n umber of a on e-to-two ratio in dicati ng the spli ne proporti ons; the upper or first n umber is the diametral pitch, the lower or s

13、ec ond n umber is the stub pitch and deno tes, as that fracti onal part of an in ch, the basic radial len gth of en gageme nt, both above and below the pitch circle.径节分数(P/Ps):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

14、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 con structed.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

15、 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 An gle (切 is the an gle betwee n a line tangent to an in volute and a radial li nethrough the point of tangen cy. Unl ess otherwise specified, it is t

16、he sta ndard pressure an gle.压力角(仍: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。Spli ne is a machi ne eleme nt con sist ing of i ntegral keys (spli ne teeth) or key

17、ways(spaces) equally spaced arou nd a circle or porti on 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。Stan dard (Ma in) Pressure An gle ($ d) is the pressure an gle at the specified pitchdiameter.标准压力角(忻)(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

18、 distance from the pitch circle to themajor circle of the external spline and from the pitch circle to the minor circleof theinternal spli ne. The stub pitch for spli nes in this sta ndard is twice the diametral pitch.残余径节(Ps):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 V

19、ariation is the greatest difference in any two teeth (adjacent or otherwise)betwee n the actual and the perfect spac ing 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 Tolera nce (m +入)is the machi ning tolera nce plus the variati on allowa nce.总公差 (m + 入): 总公差是加工公差 与

20、 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+入。Variati on Allowa nce (入)is the permissible effective variati on.综合公差(入):综合公差是在允许范围内的综合的公差。Tooth Proportio ns. 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/

21、256. Then umerator in this fracti onal desig nati on is known as the diametral pitch and con trols the pitch diameter; the denomin ator, which is always double the n umerator, is known as the stub pitch and con trols the tooth depth. For convenience in calculati on, only the n umerator is used in th

22、e formulas give n and is desig nated as P. Diametral pitch, as in gears, mea ns the n umber 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

23、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。平齿根外渐开线花键参数齿数9花键径节DP16/32压力角30基圆直径12.373节圆直径14.288大径直径15.456,4型圆直径12.802最小直径节圆电亍厚最大有效齿厚2.494最小实际齿厚2.365最小跨棒距18.481测棒直径3.048平齿根内渐开线花键参数齿数9花键径节DP16/32压力角30基圆直径12.373节圆直径14.288大径直径16.535型圆直径15.977

24、最小直径12.929弧齿齿槽宽最小有效键槽宽2.494最大实际键槽宽2.624最大棒间距9.893测棒直径2.743平齿根外渐开线花键参数齿数11花键径节DP16/32压力角30。基圆直径15.123节圆直径17.4625大径直径18.631 -0.14型圆直径15.900最小直径14.896节圆齿厚最大有效齿厚2.494最小实际齿厚2.362最小跨棒距21.722测棒直径3.048平齿根内渐开线花键参数齿数11花键径节DP16/32压力角30基圆直径15.123节圆直径17.4625大径直径19.7104型圆直径19.1516最小直径1603+严弧齿齿槽宽最小有效键槽宽2.495最大实际键槽

25、宽2.626最大棒间距13.508测棒直径2.7仁平齿根外渐开线花键参数齿数13花键径节DP16/32压力角30。基圆直径17.8726节圆直径20.6375大径直径21.74 土 0.07型圆直径19.025最小直径18.161节圆齿厚最大有效齿厚2.494最小实际齿厚2.36最小跨棒距24.94测棒直径3.048平齿根内渐开线花键参数齿数13花键径节DP16/32压力角30。基圆直径17.8726节圆直径20.6375大径直径22.8854型圆直径18.1266最小直径19.1516弧齿齿槽宽最小有效键槽宽2.4943最大实际键槽宽2.6289最大棒间距16.44396测棒直径2.7432

26、平齿根外渐开线花键参数齿数14花键径节DP12/24压力角3CT基圆直径25.6632节圆直径29.6333大径直径3.64即 &型圆直径27./183最小直径26.416节圆齿厚最大有效齿厚3.325最小实际齿厚3.178最小跨棒距35.641测棒直径4.064平齿根内渐开线花键参数齿数14花键径节DP12/24压力角30。基圆直径25.6632节圆直径29.6333大径直径32.5882型圆直径31.8516最小直径27.5336弧齿齿槽宽最小有效键槽宽3.3249最大实际键槽宽3.4722最大棒间距24.2468测棒直径3.6576平齿根外渐开线花键参数齿数15花键径节DP16/32压力角30基圆直径20.622节圆直径23.813大径直径24.981 JU型圆直径22.149最小直径21.336节圆齿厚最大有效齿厚2.494最小实际齿厚2.357最小跨棒距28.148测棒直径3.048平齿根内渐开线花键参数齿数15花键径节DP16/32压力角30基圆直径20.622节圆直径23.813大径直径26.07型圆直径25.51最小直径22.28+严弧齿齿槽宽最小有效键槽宽2.495最大实际键槽宽 2.632最大棒间距19.662测棒直径2.743

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