The invention relates to a hydraulic oil-driven structural support rotating mechanism comprising at least two hydraulic cylinders for driving the rotational movement of the structural support with respect to at least one axis, selected from vertical, horizontal or a combination of both, and a hollow core, comprising at least one opening on its side surface for the passage of a first and a second pivotable hydraulic cylinder, fixed to the core by means of two parallel vertical shafts, the ends of each hydraulic oil cylinder being fixed by attachment means to a rotating mechanical element selected from a slew ring or bearing, located inside the hollow core to which it is fixed by rotating mechanical element-core attachment means, and attached to the structural support by structural support-rotating mechanical element attachment means.