Rotary-mounted plough - with plough-frame supported by a wheel-frame, the relative pivoting movement of which is controlled by a stop-piece

摘要

The plough-frame (20) is supported on a back wheel-frame which has two wheels (26). The wheels are hinged by means of arms (28) on a horizontal axle (30) running crosswise to the direction of travel. The wheels pivot on an intermediate piece (32) which in turn moves in relation to the plough-frame (20) on a horizontal axle (34) running in the direction of travel. Fixed to each arm (28) is an upward-pointing lifting-cylinder pivoting on a ball-pivot. The top ends of both lifting-cylinders touch the top end of a draw-rod. The bottom end of the draw-rod is joined to the plough-frame (20). A crank-arm (52) is coaxial to the axle (34) and joined to the intermediate piece (32). The crank arm (52) has a two-armed pendulum (56) on an axle (54). The free ends of the pendulum (56) act as stops (58a, 58b). One stop (58a) is positioned to one side of a locking-piece (62) with four claws (60a, 60b, 60c, 60d).