The invention discloses a
paddy field leveling device with a spherical hinge connecting and
hydraulic cylinder forming link mechanism. The device can achieve four-freedom moving of a scraper, namely scraper lifting, scraper swinging, scraper horizontal swinging and scraper angle converting, and scraper leveling various tasks are completed. The device comprises a connecting plate, a
machine frame, a swinging frame, a Y-shaped base, a scraper left-right lifting
hydraulic cylinder, a swinging
hydraulic cylinder, a dragging frame, an angle converting hydraulic cylinder and a spherical hinge mechanism. A spherical hinge is arranged at the front end of the dragging frame. The spherical hinge and a ball face bearing base on the connecting plate form a spherical hinge mechanism, and spherical hinge type connecting of the dragging frame is formed. The
machine frame is welded with the connecting plate and the swinging frame, and the Y-shaped base is hinged to the swinging frame. Ear shafts of the scraper left-right lifting hydraulic cylinder and the swinging hydraulic cylinder are hinged to the Y-shaped base. A
piston rod ear ring is connected with the spherical hinge on the dragging frame, and the space link mechanism is formed with the dragging frame. An external hydraulic power source drives and controls the hydraulic cylinders to move. A scraper angle converting hydraulic cylinder
tail ear ring is hinged to two side wing plates on the dragging frame, and an ear ring at the other end is hinged to an angle position
machine. The back of the scraper is welded with a supporting plate. The scraper angel position machine is fixed on the supporting plate.