FIELD: lifting devices.
SUBSTANCE: invention relates to lifting devices. Hydraulic drive (1) of rotation comprises shaft (4), which has first attachment means (5) for connection of shaft (4) with load gripping device (2) or crane jib (3), shaft bearing (18) having second means (6) fasteners for connection of shaft bearing (18) with crane boom (3) or gripper (2), vanes (7) located in shaft (4), which can be exposed to oil by means of oil supply and oil removal for transmission of torque to shaft (4). Rotation drive (1) has synchro transmitter (8) for recording shaft (4) rotation relative to shaft bearing (18).
EFFECT: improved drive of rotation.
15 cl, 10 dwg
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