(一)花键联接的类型、几何形状和主要性能 花键联接是多键式的联接,其键与轴建成一体。 花键联接比普通键联接具有下列优点: 1)零件在花键轴上的中心较准,并沿轴移动时引导性较好; 2)花键键边上的压挤应力比普通的键为小; 3)在动负荷和变动负荷时花键轴的强度高,普通键轴的强度 (A) the type of spline connection, geometry and main performance Spline connection is a multi-button connection, the key and the shaft into one. Spline joints have the following advantages over ordinary joints: 1) The parts are more centered on the spline shaft and have better guidance when moving along the shaft; 2) The crush stress on the spline side is greater than the normal Small; 3) In the dynamic load and variable load spline shaft strength, ordinary key shaft strength