| 摘要 |
PROBLEM TO BE SOLVED: To provide a roll-clamping device of a roll-leveling machine capable of simplifying the device, improving work efficiency and reducing the time of roll changing. SOLUTION: The roll-clamping device comprises an internal-geared ring 15 mounted at the inside forward of an attaching surface that contacts with a main shaft 14 of a sleeve 12, a holding shaft 16 for a tube-shape member that is mounted at a top part of the main shaft 14 and has a guide groove 27 formed at an external periphery of the top part of the main shaft such that a perimetrical position of both ends of an axial direction is shifted with a half pitch of a gear of the internal-geared ring 15, a hydraulic actuator that is mounted at the outside of the holding shaft 16 and capable of free-advancing or retreating to the axial direction by hydraulic pressure of working fluid that is fed into each of two hydraulic pressure rooms 22, 23 respectively arranged at the top side and the foot side of the gap between an external-geared ring 17 that is formed at the external periphery of the foot side and forwardly to the internal-geared ring 15 and the holding shaft 16, and the tube-shape member 18 having a phase-matching pin 31 at the top end of the member that is inserted to the guide groove 27 of the holding shaft 16. |
