EXCAVATING PART OF WHEEL-TYPE TRENCHING MACHINE Russian patent published in 1995 - IPC

FIELD: civil engineering; earth-moving machines. SUBSTANCE: device has main rotor with gear rings and additional rotors bilaterally spaced relative to the main rotor. The main rotor frame has an axle fixed by means of brackets with clips and eccentric bushings. The additional rotors are mounted on the axle, the rotors being made in the form of freely rotating hubs mounted on bearings and disks with buckets attached to the hubs by means of two conic shells from the sides of trench walls. The buckets are connected on the opposite side relative to the disks by means of tubular thrust rods. EFFECT: improved design and performance characteristics. 3 dwg