介绍了新钢1550mm冷轧连退机组使用的西门子—奥钢联自主研发制造的塔形双刀头旋转式动力圆盘剪的刀轴装置及刀轴传动,着重分析了剪刃侧隙调节装置和剪刃重叠量调节装置的结构。为国产圆盘剪的设计和制造提供了一种参考。 This paper introduces the knife shaft device and knife shaft drive of the tower-shaped double-head rotary power disc shears independently developed and manufactured by Siemens VAI used by the 1550mm cold rolling continuous rolling unit of Xingang Iron and Steel Co., Ltd. And the structure of the blade overlap amount adjusting device. It provides a reference for the design and manufacture of domestic disc shears.