机架锁紧方式对三辊连轧管机轧制精度的影响分析

介绍了侧向换辊式三辊连轧管机中两种常用的机架锁紧方式(上下锁紧和斜向锁紧),分析了两种锁紧方式对轧辊定位精度的影响及对轧辊轴向力的承受能力等。分析认为:上下锁紧方式对于三辊连轧管机轧辊定位精度的提高具有积极效果;斜向锁紧方式虽然降低了轧辊的定位精度,但是能承受更大的轧辊轴向力,轧制机架定位更加稳定,是一种更为可靠的机架锁紧方式。

Analysis of Influence of Stand Locking Method on Rolling Accuracy of Three-roll Mandrel Pipe M

Studied are two commonly used stand locking methods for the lateral roll-changing 3-roll mandrel pipe mill, namely the ~ertieal locking method and the oblique locking method. Ana!,yzed are the influences of these two locking methods on the roll positioning accuracy and their capability of bearing the axial roll forces. Based on the analysis, it is concluded that the vertical locking method has positive influence on the roll positioning accuracy of the 3-roll mandrel pipe mill; and although the oblique locking method decreases the roll positioning accuracy, it can endure bigger axial roll forces and stabilize the positioning of rolling stand, which makes it a more reliable mechanism of stand locking.