Three-degree-of-freedom wave compensation marine crane base

The utility model discloses a three-degree-of-freedom wave compensation maritime work crane base, relates to the technical field of ocean engineering equipment, and solves the problems that the loading weight of ocean wave compensation equipment needs to be directly borne by a lifting hydraulic oil cylinder, the performance requirement on the lifting hydraulic oil cylinder is high, and the cost is low. According to the technical scheme, the lifting device is characterized by comprising a bearing base, a first hinge mechanism, a second hinge mechanism, a bearing platform, a second lifting device and a third lifting device; the movable end of the second hinge mechanism, the movable end of the second lifting device and the movable end of the third lifting device are connected to the same side face of the bearing platform and arranged in a triangular mode. According to the scheme, the lifting compensation action on the bearing platform can be achieved only by means of the three fulcrums, the characteristic that t