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    Method for pilger rolling of tubes and mill for effecting same
    1.
    发明授权
    Method for pilger rolling of tubes and mill for effecting same 失效
    管和轧机的滚筒轧制方法用于实现

    公开(公告)号：US4184352A

    公开(公告)日：1980-01-22

    申请号：US913810

    申请日：1978-06-08

    申请人： Ivan N. Potapov ,  Petr I. Polukhin ,  Ivan P. Gremyakov ,  Mikhail A. Bitny ,  Anatoly G. Vinogradov ,  German D. Styrkin ,  Gennady V. Filimonov ,  Vladimir M. Kolesov ,  Igor M. Raushenbakh ,  Vasily P. Pedas ,  Alexandr V. Ukhov ,  Petr A. Rodionov

    发明人： Ivan N. Potapov ,  Petr I. Polukhin ,  Ivan P. Gremyakov ,  Mikhail A. Bitny ,  Anatoly G. Vinogradov ,  German D. Styrkin ,  Gennady V. Filimonov ,  Vladimir M. Kolesov ,  Igor M. Raushenbakh ,  Vasily P. Pedas ,  Alexandr V. Ukhov ,  Petr A. Rodionov

    IPC分类号： B21B3/00 ,  B21B21/06 ,  B21B21/00

    CPC分类号： B21B21/06 ,  B21B3/00

    摘要： In the process of rolling a tubular billet with a mandrel is displaced in the rolling direction as it is simultaneously rotated about its longitudinal axis. Then a portion of the billet is advanced between the working rolls and is drawn over the mandrel during backward movement of the billet together with the mandrel. During forward movement of the billet with the mandrel, the billet is displaced relative to the mandrel in the same direction for a distance equal to that covered by the billet portion fed into the gap between the working rolls. The backward movement of the billet with the mandrel is effected at a speed substantially close to the peripheral speed of the working rolls at the starting moment of the drafting operation. The pilger mill comprises a stationary stand with continuously rotating working rolls. The mill also incorporates a billet feeding and turning mechanism and a billet gripping jaw kinematically linked with each other. The billet gripping jaw has screw nuts coaxially positioned therein and cooperating with a lead screw mounted together with the mandrel rod in a carriage. A tube turning mechanim has a tube gripping means accommodated in its body. Feeding and turning shafts in the billet feeding and turning mechanism are made hollow and formed with openings to receive respectively the lead screw and mandrel rod coaxially arranged therein.

    摘要翻译： 在轧制具有心轴的管坯的过程中，当其心轴沿着其纵向轴线同时旋转时，其在轧制方向上移位。 然后，坯料的一部分在工作辊之间前进，并且在坯料与心轴一起向后移动期间被拉过心轴。 在坯料与心轴的向前运动期间，坯料相对于心轴在相同方向上移动一定距离，该距离等于被供给到工作辊之间的间隙中的坯料部分所覆盖的距离。 坯料与心轴的向后运动在起草操作的起始时刻以基本上接近工作辊的圆周速度的速度进行。 包皮机包括具有连续旋转工作辊的固定架。 轧机还包括一个坯料进给和转动机构以及运动上相互连接的钢坯夹爪。 钢坯夹爪具有同轴地定位在其中的螺母，并与与芯棒一起安装在滑架中的导螺杆配合。 管转动机构具有容纳在其主体中的管夹持装置。 坯料进给和转动机构中的进给和转动轴被制成中空的并且形成有开口以分别容纳同轴地布置在其中的导螺杆和芯棒。