FIELD: process engineering.
SUBSTANCE: invention relates to structural elements of grinders used mainly in preparation of clay stock at enterprises of construction materials. Cutting unit comprises rotary blade knife (3). Every blade of the latter is composed of a replaceable cutting adapter directed along cutting edge by a through hole. Said adapter is fitted on axle rigidly secured at knife boss (3). Said axle features wedge-like cross-section converging in direction of knife rotation. Cutting adapter through hole featured mating shape with wedge point directed towards cutting edge. Bores are made in said cutting adapter on wedge base side for bolts to fit therein to press the adapter to said axle.
EFFECT: higher reliability, higher quality of material grinding.
7 cl, 9 dwg
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