Abstract: The rotatable support for inclinable masts of drilling machines includes a connecting element connected to the lifting mechanism of a drilling machine, and including two essentially parallel planar elements having an essentially triangular or trapezoidal shape, on the vertex of which a coupling element configured for bearing the mast is connected. The coupling element is rotated by two pistons, and is coupled to the connecting element by two hinges having a common rotational axis and spaced one from the other, in order to allow the passage of the piston rods between the hinges.

Abstract: The rotatable support for inclinable masts of drilling machines includes a connecting element, assembled on the back side, or anyway connected with the self-propelled carriage or with the lifting mechanism of the perforating machine, on the front vertex of which a coupling elements fit for bearing the mast, rotating by two always hinged oil-dynamic pistons, is hinged by two hinges with the same rotational axis and spaced one from the other in order to allow the passing between them of the elongating stem.