Crushing device in a crusher of an earthmover for crushing chunks of concrete into fine pieces
OwnerMitsuru Maruyamainventor
Life of this patent
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Abstract
A crushing device in a crusher includes a bucket-shaped body frame; plural ring members provided in the body frame in such a manner as to form steps at predetermined spaced intervals while diminishing their sizes gradually from the upper position toward the lower position, thereby to form a sieve with gaps as a whole; a teeth plate provided at the bottom portion of the sieve and having recessed teeth and protrusive teeth alternately formed on the inner surface thereof; a crushing shaft provided at a central portion of the body frame; and an inclined screw belt member mounted on the crushing shaft, for crushing pieces of concrete on the teeth plate in combination with the teeth plate.
Claims8
A crushing device in a crusher for crushing objects into fine pieces, the crushing device comprising:
- a bucket-shaped body frame;
- plural ring members provided in said body frame in a horizontal orientation and forming steps at predetermined spaced intervals while gradually diminishing in size from an upper position toward a lower position of the body frame, thereby to form a sieve with gaps;
- a teeth plate provided at the bottom portion of said sieve, said teeth plate having recessed teeth and protrusive teeth alternately formed on an inner surface thereof;
- a crushing shaft provided at a central portion of said body frame;
- and
- an inclined screw belt member mounted on said crushing shaft for crushing pieces of objects in combination with said teeth plate.
Dependencies are inferred from the claim text.