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1. (WO2018060910) DISPOSITIF DE SUPPORT VERTICAL À DISSIPATION D'ÉNERGIE RÉDUITE POUR ARBRES ROTATIFS
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CLAIMS

1) Vertical support device with reduced energy dissipation for rotating shafts comprising a spherical end portion (2) having radius (r), that is adapted to be rigidly constrained to a rotating vertical shaft, coupled with a rotating and floating plate (3) bearing a hemispherical cap (4), which identifies a complementary concave seat having radius (r) for the spherical end portion (2), also comprising a bearing track (5) for bearing a load (K) that rests on the rotating and floating plate (3), wherein the rotating and floating plate (3), the hemispherical cap (4) and the bearing track (5) are arranged coaxial to a housing hollow body (9) and have an axial hole (33, 51) for the passage of pressurised feed oil for the hydrostatic bearing of the spherical end portion (2), an oil separating film being arranged between the conjugated tracks arranged between the rotating and floating plate (3) and the bearing track (5), as well as between the hemispherical cap (4) and the spherical end portion (2), wherein the rotating and floating plate (3) has maximum outer radius (de/2) greater than the radius of curvature (r) of the spherical end portion (2), the support device also comprising at least one hydraulic cooling circuit for cooling the bearing track (5) .

2) Support device according to claim 1, characterised in that the hemispherical cap (4) is provided with radial channels (34) on the concave surface for the passage and containment of pressurised lubrication oil, the radial channels (34) being arranged equally spaced from one another in a number generally comprised between 3 and 6.

3) Support device according to any one of claims 1 or 2, characterised in that the plate (3) bears on the surface opposite the hemispherical cap (4) a shallow cavity (31) having diameter di, which determines the area of a rotation surface (32), consisting of the circular crown identified between the outer (de) and inner (di) diameter of the plate (3) .

4) Support device according to any one of the previous claims, characterised in that the bearing track (5) on the surface opposite the plate (3) bears a magnetic ring (6), preferably made of neodymium ceramics, the device using a magnetic polarized oil.

5) Support device according to any one of the previous claims, characterised in that the cooling circuit is made of a plurality of jets radially arranged towards the bearing track (5) .

6) Support device according to any one of the previous claims, characterised in that it comprises an auxiliary load bearing system with safety function below the hydrostatic bearing tracks, comprising a perforated shaft (8) arranged between a delivery pipe (13) for the pressurised oil and the bearing track (5), axial (7) and radial (16) rolling bearings, wherein the radial rolling bearings (16) are arranged between the housing body (9) and the shaft (8) and wherein the axial rolling bearings (7) are arranged in the point of support between the bearing track (5) and the housing body (9) .

7) Support device according to claim 6, characterised in that the delivery pipe (13), fixed, is connected to the shaft (8), which has the possibility of rotation, with axial clearance by means of sealing gaskets arranged in series.

8) Support device according to any one of the previous claims, characterised in that screws (15) with spherical end portions (17), preferably in a number between 3 and 6, are arranged equally spaced from one another, between a static base plate (19) and the hollow containment body (9) .

9) Support device according to any one of the previous claims, characterised in that it comprises two separate and distinct pumps (21, 22) in the oil circuit, of which a high-pressure pump (21) for hydrostatic bearing is connected to a circuit comprising an oil cooling/heating device (24) that takes the oil to the operating temperature (tn) , and a low pressure pump (22) for cooling the support device (100), connected to a circuit with ventilated air exchange cooling device (23) for the exchange of heat with the external environment .

10) Support device according to claim 1, characterised in that the rotating and floating plate

(3) is made through sintering technologies and is made of a composition by weight of: 64% Copper, 16% Tin, 12% Cadmium and 8% Nickel.

11) Device according to claim 1, characterised in that the bearing track (5) is made of a superalloy manufactured with so-called "mechanical alloying" technology and having a composition by weight of: 65% Iron, 18% Cobalt, 10% Chromium, 4% Silicon and 3% Tungsten .