ANSI_B92.1-1970(R1993)_SAE花键.pdfVIP

Machinerys Handbook 28th Edition INVOLUTE SPLINES Page 1 of 38 翻译：朱晓峰 节选至《美国机械工程师手册》第28版，有错之处，请指正。 SPLINES AND SERRATIONS A splined shaft is one having a series of parallel keys formed integrally with the shaft and mating with corresponding grooves cut in a hub or fitting; this arrangement is in contrast to a shaft having a series of keys or feathers fitted into slots cut into the shaft. The latter construction weakens the shaft to a considerable degree because of the slots cut into it and consequently, reduces its torque-transmitting capacity. 花键轴是一种具有“一系列相互平行的齿、并且齿与轴整体成型”的轴，它与在轮毂 上或者装配体上开的键槽相配合。这种装置与“在轴上开槽并且与一组销子或者楔键相 配合”的结构相反。后者的结构由于在轴上开槽大大降低了轴（的强度），降低了传递 扭矩的能力。 Splined shafts are most generally used in three types of applications: 1 ) for coupling shafts when relatively heavy torques are to be transmitted without slippage; 2) for transmitting power to slidably-mounted or permanently-fixed gears, pulleys, and other rotating members; and 3) for attaching parts that may require removal for indexing or change in angular position. 花键轴主要用在以下三种情况：1）需要在无滑动的联轴器上传递大的扭矩；2 ）用于 向“可滑动的装配组件”或者“固定装配的齿轮组或滑轮副”传递动力，3 ）用于“要 求指定滑移量或转角位置”的配件上。 译注A1 ：“slidably-mounted ”例如球笼式等速万向节，万向节同时能转动一定角度；“ermanently-fixed gears ”例如齿轮变速箱。（凡是带“译 注”的，表示译者的理解，下同） Splines having straight-sided teeth have been used in many applications (see SAE Parallel Side Splines for Soft Broached Holes in Fittings); however, the use of splines with teeth of involute profile has steadily increased since 1) involute spline couplings have greater torque-transmitting capacity than any other type; 2) they can be produced by the same techniques and equipment as is used to cut gears; and 3) they have a self-centering action under load even when there is backlash betwee