DEVICE FOR CRUSHING FRAGILE OF BREAKABLE MATERIALS Russian patent published in 1995 - IPC

FIELD: mechanical engineering. SUBSTANCE: crushing device has a bunker with a chamber for collecting the crushed material. The chamber has the central discharging hole located in the bottom. The discharging hole determining the manhole contours has a round wall. The rotated crushing head is usually placed to the center inside the discharging hole at a certain distance from the manhole wall in order to determine the contour of the ring-shaped point of the clamp between the manhole wall and the outer surface of the head. The crushing head is held to the center near the rotation point in order to let the rotary and oscillatory motions of the crushing head around the rotation point. Special means including a spindle are envisaged for the application of the oscillatory motion to the head. The device is made so that the material being in the bunker can be subjected to crushing resulting from the motion of the crushing head relative to the wall. In this case the opposite sides of the crushing head interact with the manhole wall with the aim of keeping the gap of the clamp point during the full oscillation of the crushing head. EFFECT: enhanced efficiency of crushing. 9 cl, 5 dwg