The invention discloses a
hydraulic pressure adjustable type slipper bearing device for supporting a large-sized mill
barrel, which comprises a protection cover (1), bearing pads (3), hydraulic cylinders (4) and a base (5), wherein the hydraulic cylinders are symmetrically distributed and fixed on the base; the upper end of each
hydraulic cylinder is connected with a bearing pad; the bearing pads are used for supporting the
barrel (2); the two ends of the base is connected with the protection cover of which the
diameter is greater than the external
diameter of the
barrel and the shape is larger than a semicircle; each
hydraulic cylinder consists of a convex sphere seat (6), a
piston (7), a regulating nut (10), a cylinder seat (11) and a sealing ring (12); and an anti-loosening device comprises an anti-loosening pressing sleeve (8), a screw (13), a
washer (14) and the like. After the height regulation of the
piston is determined, the hydraulic cylinders are disassembled, and the
high pressure of the barrel acts on the regulating nut; and in order to prevent the loosening of the regulating nut due to vibration generated when the barrel is operated, the anti-loosening pressing sleeve is fixed on the regulating nut through the screw, so that the rotating joint of the regulating nut and the
piston cannot be loosened, and the safe and stable operation of the barrel can be ensured.