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论述了摆动从动件的四种常用运动规律对盘形凸轮压力角的影响，作出了压力角随凸轮转角变化规律的曲线；指出了在不同运动规律下，如何合理地确定凸轮与摆杆的相对转向，以使机构具有较高的传动效率；阐述了在基本尺寸不变的前提下有效降低压力角的根本原因；提出了等速运动规律下凸轮推程廓线上各点压力角的求法。对研究摆动从动件凸轮机构压力角和设计凸轮机构具有指导意义。
The influence of four commonly used motion laws of the oscillating follower on the pressure angle of the cam was discussed, and the curve of the pressure angle with the variation of the cam angle was given. It is pointed out how to determine the cam and the rocker properly under different laws of motion Relative steering, so that the mechanism has a higher transmission efficiency; described under the premise of the basic size unchanged effectively reduce the root cause of the pressure angle; proposed a constant velocity motion profile of the cam on the point of the pressure angle of the method . It is instructive to study the pressure angle of the oscillating follower cam mechanism and the design cam mechanism.