Scoop wheel having oscillating impact cutters

Details Scoop wheel having oscillating impact cutters Scoop wheel having oscillating impact cutters

1985-07-22

1987-05-12

Crowder, Clifford D.

Excavating

Rotary digger

Endless conveyor

37DIG18, 37141T, 299 14, 299 67, E02F 324

Patent

active

046638687

ABSTRACT:
A rotary wheel excavator having scoops with impact cutters only at the two front corners of the cutting edge of each scoop. Structure is provided for vibrating each impact cutter during a predetermined portion of the rotation of the wheel. The left and right hand impact cutters on each scoop are independently controlled, depending on the direction of swing of the excavator boom. The operation of the impact cutters is preferably under the control of a hydraulic system.

REFERENCES:
patent: 901008 (1908-10-01), Hurst
patent: 3677604 (1972-07-01), Leyrat
patent: 3746100 (1973-07-01), Hall et al.
patent: 4012856 (1977-03-01), Schwarz
patent: 4214386 (1980-07-01), Franke

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