| 摘要 |
An improved device for controlling the locking and unlocking movements of a rotary disk (10) with a ring gear system (13, 14) and including a screw (1) and screw-nut (6) assembly for driving the disk between a locking position and an unlocking position comprises a hydraulic circuit (17) for controlling the engagement force of the ring gears (13, 14), or the locking force of the rotary disk (10), thereby the device allows to perform high speed locking and unlocking movements of the rotary disk, and with the advantage of controlling the ring gear engagement force or effort depending on the masses being driven and the values required by the machining operations which must be carried out.
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