Rotary drive  Sleeve Quick Details

    The utility model comprises a driving sleeve body and a plurality of movable keys; A plurality of keyways are longitudinally arranged on the drive sleeve body, and a plurality of movable keyways are respectively fixedly connected in the plurality of keyways through bolts; One end of the keyway of the drive sleeve body sinks radially to form a sink or opening; One end of the movable key bar protrudes along the thickness direction to form a pressure bearing table. The movable key bar is clamped in the keyway and the pressure bearing table of the movable key bar is clamped in the groove or opening of the keyway of the drive sleeve body. The inner side of the movable key bar pressure bearing table rests against the groove or opening side wall of the keyway. When the drive sleeve of the utility model rotates to drive the drill pipe, the transition mating surface between the drive sleeve and the movable key bar bears the pressure instead of the bolt. When the machine lock drill pipe is used, the pressure bearing table bears the axial pressure by contacting the drive sleeve, avoiding the bolt from being directly sheared, which makes the service life of the utility model longer.

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