往复等速运动圆柱凸轮的轮廓曲线是两条对称的普通螺旋线组成,展开后的位移曲线(滚轮中心线)是两条对称的直线。为了避免刚性冲击,改善其动力性能,往往两端选用圆弧光滑过渡。为了保持原有的动程h(实际动程见图1),从而使位移曲线的斜率有所修正,因此,在 The reciprocating isokinetic motion The profile curve of a cylindrical cam is composed of two symmetrical normal spiral lines. The developed displacement curve (the wheel center line) is two symmetrical straight lines. In order to avoid the rigid impact and improve the dynamic performance, arc smooth transition is often used at both ends. In order to maintain the original h (the actual stroke shown in Figure 1), so that the slope of the displacement curve has been amended, so in