In this paper, the working principle of a new method for turning of belieal and ring grooves of rolls for twining wire rope in an excavator or hoistor.

• 介绍了挖掘机、卷扬机缠绕钢丝绳的卷筒圆弧形螺旋槽、环槽的一种新的加工方法的原理及仿形轮的设计。