EXCAVATING MACHINE Russian patent published in 1996 - IPC

FIELD: earth-moving. SUBSTANCE: excavating machine includes self-moving chassis 8, rotary blade 7, six rods 1 - 6, made of parts being movable in lengthwise direction. Blade 7 is connected to chassis 8 through rods 1 - 6. At least three spatial hinges 11 are installed on the rods. At least two rods 1 - 6 are not parallel. Movable parts of each rod 1 - 6 are interconnected so as to be revolved about lengthwise axis. Each spatial hinge of rods 1 - 6 with blade 7 and hinge 8 is made of two movable parts of rods 1 - 6. Axle 13 is placed on blade 7 or hinge 8 so as to be parallel to support surface of hinge 8 and perpendicular to lengthwise symmetry surface of the machine. Revolution axle 13 together with hinge 8 of rod 1 is coaxial to axle 13 of rod 4. Axle 13 connected to hinge 8 with rod 2 is coaxial to axle 13 with rod 5. Axle 13 connected to rod 6 with hinge 8 is coaxial to axle 13 of rod 1 or rod 2. Ends of rod 3 and rod 5 facing the blade are connected to rod 2 part secured to hinge 8. Opposite parts of rod 1 and rod 2 and rod 6 are connected to the blade with free ends. At least one rod of rods 1 - 6 is made in the form of telescopic hydraulic cylinder, and others in the form of usual hydraulic cylinders. Blade 7 is installed to needed position by changing lengths of rods 1 - 6. EFFECT: higher performance. 3 cl, 4 dwg