ANSI B92.1 SAE花键标准及常用花键参数.pdf

ANSI B92 1 1970 SAE 花键标准花键标准 INVOLUTE SPLINES 渐开线花键渐开线花键 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 渐开线终止圆渐开线终止圆是用于控制齿廓上渐开线渐开线的极限距离的圆 渐开线终止圆渐开线终止圆与齿顶圆齿顶圆 或 者修缘线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 渐开线终止圆渐开线终止圆的位置靠近内内 花键花键的大圆大圆 齿根圆齿根圆 或者外花键外花键的小圆小圆 齿根圆齿根圆 译者注译者注 这段话的意思是 只有在渐开线终止圆渐开线终止圆与齿顶圆齿顶圆 或者修缘线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 译者注译者注 2 在 GB T 3478 1 1995 圆柱直齿渐开线花键圆柱直齿渐开线花键 中 将Form Cycle定义为两个圆 内内 花键花键的渐开线终止圆渐开线终止圆和外花键外花键的渐开线起始圆渐开线起始圆 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渐开线终止圆 Form Clearance cF 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 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径向方向上的间隙 齿形裕度齿形裕度是 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小圆 齿顶圆齿顶圆 外花键的大圆大圆 齿顶圆齿顶圆 以及内 外花键各自的节圆节圆之间存在一定的偏心距 Form Diameter DFe DFi the diameter of the form circle 渐开线终止圆直径渐开线终止圆直径 DFe DFi 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 导向公差是花键的键齿的实际齿线实际齿线与花键的参考轴线参考轴线之间的平行度平行度公差 这个公差包括平平 行度公差行度公差和圆周阵列公差圆周阵列公差 见图Fig 1a 注意 直齿花键 非螺旋花键 的导向公差为无穷大 译者注译者注 这一条解释有待斟酌 Length of Engagement Lq is the axial length of contact between mating splines 结合长度结合长度 Lq 结合长度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 译者注译者注 在 GB T 3478 1 1995 圆柱直齿渐开线花键圆柱直齿渐开线花键 中 将加工公差加工公差定义为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 大圆大圆是花键的最大齿形面的包络圆 它是外花键外花键的外圆外圆 齿顶圆齿顶圆 和内花键内花键的齿根圆齿根圆 Major Diameter Do Dri is the diameter of the major circle 大圆直径大圆直径 大圆直径大圆直径 Do Dri 是大圆大圆所在圆的直径 译者注译者注 在 GB T 3478 1 1995 圆柱直齿渐开线花键圆柱直齿渐开线花键 中 将大圆直径大圆直径定义为 内花键Dei 外花键Dee 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 小圆小圆是花键的最小齿形面的排斥圆 它是外花键外花键的齿根圆齿根圆 和内花键内花键的内圆内圆 齿顶圆齿顶圆 Minor Diameter Dre Di is the diameter of the minor circle 小圆直径小圆直径 小圆直径小圆直径 Dre Di 是小圆小圆所在圆的直径 译者注译者注 在 GB T 3478 1 1995 圆柱直齿渐开线花键圆柱直齿渐开线花键 中 将小圆直径小圆直径定义为 内花键Dii 外 花键Die 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 理论侧隙理论侧隙是内花键内花键的实际齿槽宽实际齿槽宽减去与之相互配合的外花键外花键的实际齿厚实际齿厚所得的值 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 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 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 Ps 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 径节分数径节分数 P Ps 径节分数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径节 第二个数 分 母 B表示的是残余径节残余径节 径节径节表示的是在节圆节圆上方的键齿在半径方向上的结合长度 残余径节残余径节表示 的是在节圆节圆下方的键齿在半径方向上的结合长度 译者注译者注 可以理解为节圆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径节 节圆下方的键齿 的齿高为残余径节残余径节 在实际计算时要考虑到渐开线终止圆渐开线终止圆与修缘线所在圆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 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节圆为基础开始计算的 Pitch Diameter D is the diameter of the pitch circle 节圆直径节圆直径 D 节圆直径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 节点节点是键齿的齿廓与节圆节圆的交点 Pressure Angle 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 压力角压力角 压力角压力角是花键的渐开线齿廓的切线切线与通过切点的半径半径所组成的夹角夹角 除非有特殊说明 压力角通常是指标准压力角标准压力角 Profile Variation is any variation from the specified tooth profile normal to the flank 齿形误差齿形误差 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 花键花键是一种机械零件 它由凸出的齿 键齿键齿 或凹下的沟 齿槽齿槽 组成 键齿键齿和键槽键槽等分一个 完成圆或者部分圆弧 Standard Main Pressure Angle D is the pressure angle at the specified pitch diameter 标准压力标准压力角 D 主压力角主压力角 标准压力角标准压力角是指特定在节圆节圆上的压力角 Stub Pitch Ps 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 残余径节残余径节 Ps 残余径节残余径节是一个数 它用于表示节圆节圆与外花键外花键的大圆大圆或内花键内花键的小圆小圆之间的半径差半径差 在本标准中 花键的残余径节残余径节是径节径节的 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 齿距累计误差齿距累计误差是任意两齿的实际弧长实际弧长与理论弧长理论弧长之差的最大绝对值最大绝对值 译者注译者注 这一条解释有待斟酌 Total Tolerance m is the machining tolerance plus the variation allowance 总公差总公差 m 总公差总公差是加工公差加工公差与综合公差综合公差之和 译者注译者注 在 GB T 3478 1 1995 圆柱直齿渐开线花键圆柱直齿渐开线花键 中 将总公差总公差定义为 T Variation Allowance is the permissible effective variation 综合公差综合公差 综合公差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 4