大长度多头螺旋槽管旋轧设备研制

Multi-spiral Tube Spinning-rolling Equipment

凝汽器用多头螺旋槽管长度可达6～15m,两头是光管,中间有一段螺旋槽,因此其成形设备必须具有多头旋轧,非旋转式水平进料,螺旋槽部分长度自动控制、旋轮自动进给这4大特点,才能满足工业化应用的要求。该旋轧设备采用3个旋轮同时轧入,1道次成形;2个光电开关控制凸轮盘正、反转连锁实现旋轮自动进退,完成对螺旋槽部分长度的自动控制;利用前后张紧装置保证坯料在送料过程中不旋转。

The multi-spiral tube for condensers is 6-15 m long, while there are spiral grooves in the middle of the tube and there is smooth on both sides. To satisfy the industrialization needs, the rolling equipment must be having four characteristics of multi-spiral rolling, non-revolving straight feeding, automatic spiral length control and rolling wheel automatic advancing and retreating control. The rolling equipment realized one-pass shaping using three rolling wheels driving in at the same time. Two photoelectric switches are used to control the cam set rotating to realize the rolling wheel automatically advancing and retreating, and then the spiral length is automatically controlled. The uses of front and back compaction set ensure that the shell is not rotating in the feeding.