Crop Cutting Device Sensor Arrangement
AssigneeCNH Industrial Belgium N.V.
InventorsDries Liefooghe, Jeroen Devroe
Life of this patent
Estimating the term…
Loading patent…
AssigneeCNH Industrial Belgium N.V.
InventorsDries Liefooghe, Jeroen Devroe
Estimating the term…
The present invention provides a crop cutting device (1) comprising a crop guiding surface (3), a plurality of knives (5) arranged side-by-side, wherein each knife (5) is pivotable about a knife axis (7) between a retracted inoperative position. The crop cutting device further comprises a plurality of operating units (11) in parallel to the plurality of knives (5). The crop cutting device comprises a selector mechanism (13) configured to selectively engage one or more of the plurality of operating units (11), wherein the selector mechanism (13) includes a rotatable shaft (17) comprising a plurality of engagement elements (19) configured to engage with the respective operating unit (11). The operating units (11) are movable between a disengaged position and an engaged position by a lifting mechanism (23) comprising an elongate element extending between a first side and a second side of a main frame (21).
Crop cutting device (1) comprising:
Crop cutting device (1) according to one of the previous claims, characterized in that the elongate element (25) comprises a first bar (25a) and, optionally, a second bar (25b) parallel to the first bar (25a), wherein the operating units (11) extend preferably between the first bar (25a) and the second bar (25b).
Crop cutting device (1) according to one of the previous claims, characterized in that the drive shaft (29) comprises a slider crank unit (63) or a closed cam unit (63) wherein the slider crank unit (63) or the closed cam unit (63) are configured to convert the rotational movement of the drive shaft (29) into an upward or downward movement of the plurality of operating units (11).
Crop cutting device (1) according to one of the previous claims, characterized in that in use, a 360° rotation of the drive shaft (29) is translated into a rotation less than 360° of the rotatable shaft (17), e.g. a 180°, 120°, 90°, 60°, 45°, 30° rotation of the rotatable shaft (17).
Crop cutting device (1) according to one of the previous claims, characterized that the drive shaft (29) is driven by an actuator (59).
Crop cutting device (1) according to one of the previous claims, characterized in that the drive shaft (29) and the rotatable shaft (17) are configured to engage with each other directly or indirectly by means of a transmission unit (61).
Crop cutting device (1) according to one of the previous claims, characterized in that when the drive shaft (29) and the rotatable shaft (17) are not engaged, the rotatable shaft (17) is locked from rotation in both directions.
Crop cutting device (1) according to one of the previous claims, characterized in that the main frame (21) comprises two side plates (15) on the first side and second side, respectively, each side plate (15) comprising guiding means (37) configured to guide the elongate element (25).
Crop cutting device (1) according to one of the previous claims, characterized in that the engagement of the drive shaft (29) of the lifting mechanism (23) with the rotatable shaft (17) of the selector mechanism (13) is provided on one side or on both sides of the main frame (21) of the crop cutting device (1).
Crop cutting device (1) according to any of the previous claims, characterized in that the crop cutting device further comprises at least one sensor means (79) configured to detect a position of at least one of the drive shaft (29), the rotatable shaft (17), the actuator (59), and the transmission unit (61),
Agricultural machine (100) comprising a crop cutting device (1) according to one of the previous claims.
Dependencies are inferred from the claim text.