Device for detecting the sharpness of cutting edges of the chopper knives according to a chopper drum of a forage harvester

摘要

A device (14) for detecting the sharpness of cutting edges of the chopper knives on a rotary driven chopper drum of a forage harvester, with a formed as an electrode (18) contact sensor, wherein the electrode (18) in a circuit (15) is linked, which, depending upon whether one of the chopper knives (2) the electrode (18) is contacted, and is closed, and with a likewise in the circuit (15) integrated counter electrode (19), which, adjacent to the electrode (18) is arranged.