Cutting sharpness detection device

• Main Authors: Stremlau, Bjoern, Brune, Markus, Huster, Jochen, Neitemeier, Dennis, Fischer, Frédéric, Heitmann, Christoph
• Format: Patent
• Language: English
• Published: 31.01.2023
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; CRUSHING, PULVERISING, OR DISINTEGRATING; CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING,CUTTING-OUT, STAMPING-OUT OR SEVERING; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE; FISHING; FORESTRY; HAND CUTTING TOOLS; HARVESTING; HAY OR STRAW PRESSES; HUMAN NECESSITIES; HUNTING; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; MILLING GRAIN; MOWING; PERFORMING OPERATIONS; PHYSICS; PREPARATORY TREATMENT OF GRAIN FOR MILLING; PROCESSING OF HARVESTED PRODUCE; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; SEVERING; TESTING; TRANSPORTING; TRAPPING; VEHICLES IN GENERAL

A detection arrangement for detecting a wear status of a chopping knife arrangement of a chopping device provided for processing a product flow, wherein the chopping device has a revolving chopping drum receiving the chopping knife arrangement and at least one shear bar which cooperates with the chopping knives, with a sensor arrangement which has a magnetic exciter arrangement and a flux conducting device magnetically coupled thereto. The sensor arrangement provides a pole arrangement which forms at least one magnetic pole with a pole surface for conducting magnetic flux, wherein at least a portion of the chopping knife passes the pole arrangement during a rotation of the chopping drum. A voltage induced when a chopping knife arrangement passes the sensor arrangement forms the measured magnetic value, which is used by the evaluation unit to determine the state of wear of the chopping knife arrangement.