Patent ID: 8789778
Filing Date: 2014-07-29
Classification: B02C

Abstract:
1. A cutting device for reducing a fluid-solid mixture, having a knife rotor which (i) is mounted so as to be able to rotate relative to a cutting sieve, (ii) abuts the cutting sieve axially with respect to the direction of its axis of rotation, and (iii) is pretensioned against the cutting sieve in a first pretensioning direction, further comprising at least one clearance space which is bounded by at least first and second surfaces, wherein the first surface is fixed with respect to the knife rotor in the axial dimension, the second surface is fixed with respect to the cutting sieve in the axial dimension, the first and the second surfaces are arranged in such a manner that the same cannot rotate about the axis of rotation of the knife rotor with respect to each other, at least one freewheel body is arranged in the at least one clearance space, and is pretensioned in the axial dimension to abut the first and the second surfaces in a second pretensioning direction, the first and the second surfaces are configured so that the radial gap between the first and the second surfaces becomes narrower in the direction of the second pretensioning direction, whereby a relative movement in the axial dimension between the knife rotor and the cutting sieve toward the first pretensioning direction is prevented.