FIELD: equipment for crushing and grinding of hard bulk materials, preferably materials having resiliency properties.
SUBSTANCE: grinder has base wherein outer cone is immovably fixed, movable cone freely lying on flat sliding support provided on base. On inner hollow shaft of movable cone there is eccentric positioned for rotation. Unbalancing device fixed for rotation on outer cylindrical surface of eccentric is equipped with movable weight joined with unbalancing device through flexible coupling. Drive shaft axially aligned with hollow shaft of cone with gap exceeding maximum gap between cones is joined with eccentric through carrier equipped with slider roller to be inserted into radial slot of eccentric.
EFFECT: reduced starting moment of electric engine, high centrifugal force and increased efficiency.
2 dwg
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