Aiming at the disc cam mechanism with roller followers,an approximate method has been presented to solve the profiles and its curvatures for the cams.

• 与解析法相比,在求解过程中,近似法只需获得推杆滚子的中心位置即可进行,而无须考虑凸轮从动件的运动动规律,可避免对运动规律进行求导。