| 摘要 |
A tube extracting method and such a mechanism comprising an elongated frame (4, 6), a passageway (16), a sleeve (20) slidably supported by the frame (4, 6) for longitudinal movement in a first direction toward a front opening (12) and in a second direction away from the opening, an expandable jaw (30) and a mandrel (41) expanding the jaw when moved in the first direction. Hydraulic cylinders (40, 50) are provided for moving the mandrel (41) and pulling the frame (4, 6). |
