| 摘要 |
A working stand of a Pilger pipe-rolling mill comprises a fixed frame 1 with vertical guides 2 and which there are located pads 4 and 5 of upper and lower working rolls and locking mechanisms of each pad in the direction of rolling axis, wherein the locking mechanism is formed as a pusher 6 located in the frame movable in the direction of the axis of rolling, which consists of two parts, one of them is equipped from one side with a set of retaining rollers contact with the side surface of pad and the second part from the other side is made with possibility of interaction with a lever 8 placed outside the frame, while as a drive of pusher a hydraulic cylinder 9 is mounted which is fastened to the frame, the rod of which is pivotally connected to the major lever arm and the minor lever arm is hinged on the frame. |
