Reduction tool and device with such a reduction tool and method for determining the wear level of such a reduction tool

摘要

The tool has an end forming a bearing area at a mounting area on a rotor. An opposite end of the tool includes a comminution area with an active edge (4'). A reference surface (5) is arranged at an outer perimeter of the tool at a distance from the active edge, where a distance (A1) to the active edge determines a degree of wear and the reference surface runs transverse to a distance direction. The outer perimeter of the tool includes a planar side surface, where the reference surface extends along the planar side surface. The tool is designed as a shearing tool. An independent claim is also included for a method for determining a state of wear of a comminuting tool of a comminuting device having a rotor-rotor system or a rotor-stator system.