Method for determining the sharpness of cutting edges of chopper blades
AssigneeCLAAS Saulgau GmbH
InventorsStefan Loebe, Klaus Schulze, Hans Rauch
Life of this patent
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Abstract
A method for determining the sharpness of cutting edges (16) of chopper blades (1) at a rotationally driven chopper drum (14) of a forage harvester includes scanning a blade surface of at least one of the chopper blades located behind the cutting edge by at least one electrode operating as a contact sensor and determining a duration of contact of the at least one electrode with the blade surface.
Claims15
A method for determining the sharpness of cutting edges (16) of chopper blades (1) at a rotationally driven chopper drum (14) of a forage harvester, comprising a shear bar (19) and a sharpening device (15) having a sharpening stone (2) for resharpening the chopper blades (1), comprising steps of:
- scanning a blade surface (5) of at least one of the chopper blades (1) located behind the cutting edge (16) by at least one electrode (3), as the contact sensor (27), and
- determining a duration of contact of the at least one electrode (3) with the blade surface (5).
A device for determining the sharpness of cutting edges (16) of chopper blades (1) at a rotationally driven chopper drum (14) of a forage harvester, comprising a shear bar (19) and a sharpening device (15) having at least one sharpening stone (2) for resharpening the chopper blades (1), comprising:
- at least one electrode (3) configured as a contour sensor (27) for scanning a blade surface (5) of at least one of the chopper blades (1) located behind a cutting edge (16).
Dependencies are inferred from the claim text.