CA2561463A1 - Device for maintaining wing balance on a multi-section header - Google Patents
Device for maintaining wing balance on a multi-section header Download PDFInfo
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- CA2561463A1 CA2561463A1 CA 2561463 CA2561463A CA2561463A1 CA 2561463 A1 CA2561463 A1 CA 2561463A1 CA 2561463 CA2561463 CA 2561463 CA 2561463 A CA2561463 A CA 2561463A CA 2561463 A1 CA2561463 A1 CA 2561463A1
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- Canada
- Prior art keywords
- wing
- lifting force
- frame portion
- balance beam
- spring
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D41/00—Combines, i.e. harvesters or mowers combined with threshing devices
- A01D41/12—Details of combines
- A01D41/14—Mowing tables
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Agricultural Machines (AREA)
- Harvesting Machines For Root Crops (AREA)
- Threshing Machine Elements (AREA)
- Harvester Elements (AREA)
Abstract
A crop harvesting header includes a center portion mounted on two spring arms and two separate wings pivotally connected to the center portion.
The wings are connected to the center portion by interconnecting linkages which transfer weight from the wings to the spring arms each including a balance beam arranged to balance the lifting force from the spring arm with the downward forces from the center portion and wing such that the downward force on a skid plate of each portion on the ground varies automatically as the tot2i downward force is varied. The balance beams apply force to the linkages by a compression member to reduce forces. The movement caused by floating of the header and the change of angle of the header are compensated at the balance beam to ensure that the force to the wings is reduced as the requirement caused by changes in geometry reduces.
The wings are connected to the center portion by interconnecting linkages which transfer weight from the wings to the spring arms each including a balance beam arranged to balance the lifting force from the spring arm with the downward forces from the center portion and wing such that the downward force on a skid plate of each portion on the ground varies automatically as the tot2i downward force is varied. The balance beams apply force to the linkages by a compression member to reduce forces. The movement caused by floating of the header and the change of angle of the header are compensated at the balance beam to ensure that the force to the wings is reduced as the requirement caused by changes in geometry reduces.
Claims (19)
1. A crop harvesting header comprising:
a main frame structure extending across a width of the header for movement in a forward direction generally at right angles to the width across ground including a crop to be harvested;
a mounting assembly for carrying the main frame structure on a propulsion vehicle;
a crop receiving table carried on the main frame structure across the width of the header;
a cutter bar across a front of the table arranged to move over the ground in a cutting action and carrying a cutter knife operable for cutting the crop as the header is moved forwardly across the ground for depositing the crop onto the table;
a skid element extending across the width of the header for engaging the ground so as to receive lifting forces from the ground at whatever points of the skid element contact the ground tending to lift the cutter bar;
a crop transport system on the table for moving the cut crop toward a discharge location of the header;
the main frame structure including a center frame portion, a first wing frame portion and a second wing frame portion;
the first wing frame portion being connected to the center frame portion by a first pivot coupling arranged for pivotal movement of the first wing frame portion relative to the center frame portion about a first pivot axis extending in a plane parallel to the forward direction;
the first pivot coupling thus acting to support weight from the first wing frame portion at the pivot coupling while weight from the first wing frame portion outboard of the first pivot coupling tends to rotate the first wing frame portion about the first pivot coupling in a downward direction;
the second wing frame portion being connected to the center frame portion by a second pivot coupling arranged for pivotal movement of the second wing frame portion relative to the center frame portion about a second pivot axis extending in a plane parallel to the forward direction;
the second pivot coupling thus acting to support weight from the second wing frame portion at the second pivot coupling while weight from the second wing frame portion outboard of the second pivot coupling tends to rotate the second wing frame portion about the second pivot coupling in a downward direction;
the mounting assembly including a first spring biased lifting member for applying a first spring lifting force and a second spring biased lifting member for applying a second spring lifting force arranged at transversely spaced positions on the center portion of the main frame structure;
a first linkage for applying a first wing lifting force to the first wing frame portion tending to support the first wing frame portion against said rotating movement about the first pivot coupling;
a second linkage for applying a second wing lifting force to the second wing frame portion tending to support the second wing frame portion against said rotating movement about the second pivot coupling;
a first balance system including a first balance beam pivotally connected at a first pivot connection to the center portion of the main frame structure for applying a first center portion lifting force to the center portion;
the first balance beam being connected to a first compression member of the first balance system so as to apply the first wing lifting force as a compression force longitudinally of the first compression member;
the first balance beam being arranged to receive the first spring lifting force from the first spring biased lifting member at a first lift position therealong between the first pivot connection and the first compression member so as to balance the first spring lifting force between the first center portion lifting force and the first wing lifting force;
and a second balance system including a second balance beam pivotally connected at a second pivot connection to the center portion of the main frame structure for applying a second center portion lifting force to the center portion;
the second balance beam being connected to a second compression member of the second balance system so as to apply the second wing lifting force as a compression force longitudinally of the second compression member;
the second balance beam being arranged to receive the second spring lifting force from the second spring biased lifting member at a second lift position therealong between the second pivot connection and the second compression member so as to balance the second spring lifting force between the second center portion lifting force and the second wing lifting force.
a main frame structure extending across a width of the header for movement in a forward direction generally at right angles to the width across ground including a crop to be harvested;
a mounting assembly for carrying the main frame structure on a propulsion vehicle;
a crop receiving table carried on the main frame structure across the width of the header;
a cutter bar across a front of the table arranged to move over the ground in a cutting action and carrying a cutter knife operable for cutting the crop as the header is moved forwardly across the ground for depositing the crop onto the table;
a skid element extending across the width of the header for engaging the ground so as to receive lifting forces from the ground at whatever points of the skid element contact the ground tending to lift the cutter bar;
a crop transport system on the table for moving the cut crop toward a discharge location of the header;
the main frame structure including a center frame portion, a first wing frame portion and a second wing frame portion;
the first wing frame portion being connected to the center frame portion by a first pivot coupling arranged for pivotal movement of the first wing frame portion relative to the center frame portion about a first pivot axis extending in a plane parallel to the forward direction;
the first pivot coupling thus acting to support weight from the first wing frame portion at the pivot coupling while weight from the first wing frame portion outboard of the first pivot coupling tends to rotate the first wing frame portion about the first pivot coupling in a downward direction;
the second wing frame portion being connected to the center frame portion by a second pivot coupling arranged for pivotal movement of the second wing frame portion relative to the center frame portion about a second pivot axis extending in a plane parallel to the forward direction;
the second pivot coupling thus acting to support weight from the second wing frame portion at the second pivot coupling while weight from the second wing frame portion outboard of the second pivot coupling tends to rotate the second wing frame portion about the second pivot coupling in a downward direction;
the mounting assembly including a first spring biased lifting member for applying a first spring lifting force and a second spring biased lifting member for applying a second spring lifting force arranged at transversely spaced positions on the center portion of the main frame structure;
a first linkage for applying a first wing lifting force to the first wing frame portion tending to support the first wing frame portion against said rotating movement about the first pivot coupling;
a second linkage for applying a second wing lifting force to the second wing frame portion tending to support the second wing frame portion against said rotating movement about the second pivot coupling;
a first balance system including a first balance beam pivotally connected at a first pivot connection to the center portion of the main frame structure for applying a first center portion lifting force to the center portion;
the first balance beam being connected to a first compression member of the first balance system so as to apply the first wing lifting force as a compression force longitudinally of the first compression member;
the first balance beam being arranged to receive the first spring lifting force from the first spring biased lifting member at a first lift position therealong between the first pivot connection and the first compression member so as to balance the first spring lifting force between the first center portion lifting force and the first wing lifting force;
and a second balance system including a second balance beam pivotally connected at a second pivot connection to the center portion of the main frame structure for applying a second center portion lifting force to the center portion;
the second balance beam being connected to a second compression member of the second balance system so as to apply the second wing lifting force as a compression force longitudinally of the second compression member;
the second balance beam being arranged to receive the second spring lifting force from the second spring biased lifting member at a second lift position therealong between the second pivot connection and the second compression member so as to balance the second spring lifting force between the second center portion lifting force and the second wing lifting force.
2. The header according to Claim 1 wherein the first balance beam is arranged such that a distance of the first pivot connection to the lift position is greater than the distance of the first lift position to the first compression member and wherein the second balance beam is arranged such that a distance of the second pivot connection to the second lift position is greater than the distance of the second lift position to the second compression member.
3. The header according to Claim 1 wherein the first and second balance beams are oriented such that each has its longitudinal direction parallel to the forward direction
4. The header according to Claim 3 wherein the first balance beam is pivoted on the first pivot connection at a forward end thereof and the second balance beam is pivoted on the second pivot connection at a forward end thereof.
5. The header according to Claim 3 wherein each of the first and second pivot connections is arranged adjacent the cutter bar.
6. The header according to Claim 1 wherein the first balance beam and the first linkage is arranged such that the first wing lifting force and the first center portion lifting force vary proportionally and wherein the second balance beam and the second linkage is arranged such that the second wing lifting force and the second center portion lifting force vary proportionally.
7. The header according to Claim 1 wherein the first spring biased lifting member includes a first lift arm extending in the forward direction parallel to and underneath the first balance beam and wherein the second spring biased lifting member of the mounting assembly includes a second lift arm extending in the forward direction parallel to and underneath the second balance beam.
8. A crop harvesting header comprising:
a main frame structure extending across a width of the header for movement in a forward direction generally at right angles to the width across ground including a crop to be harvested;
a mounting assembly for carrying the main frame structure on a propulsion vehicle;
a crop receiving table carried on the main frame structure across the width of the header;
a cutter bar across a front of the table arranged to move over the ground in a cutting action and carrying a cutter knife operable for cutting the crop as the header is moved forwardly across the ground for depositing the crop onto the table, a skid element extending across the width of the header for engaging the ground so as to receive lifting forces from the ground at whatever points of the skid element contact the ground tending to lift the cutter bar;
a crop transport system on the table for moving the cut crop toward a discharge location of the header;
the main frame structure including a center frame portion, a first wing frame portion and a second wing frame portion;
the first wing frame portion being connected to the center frame portion by a first pivot coupling arranged for pivotal movement of the first wing frame portion relative to the center frame portion about a first pivot axis extending in a plane parallel to the forward direction;
the first pivot coupling thus acting to support weight from the first wing frame portion at the pivot coupling while weight from the first wing frame portion outboard of the first pivot coupling tends to rotate the first wing frame portion about the first pivot coupling in a downward direction;
the second wing frame portion being connected to the center frame portion by a second pivot coupling arranged for pivotal movement of the second wing frame portion relative to the center frame portion about a second pivot axis extending in a plane parallel to the forward direction;
the second pivot coupling thus acting to support weight from the second wing frame portion at the second pivot coupling while weight from the second wing frame portion outboard of the second pivot coupling tends to rotate the second wing frame portion about the second pivot coupling in a downward direction;
the mounting assembly including a first spring biased lifting member for applying a first spring lifting force and a second spring biased lifting member for applying a second spring lifting force arranged at transversely spaced positions on the center portion of the main frame structure;
a first linkage for applying a first wing lifting force to the first wing frame portion tending to support the first wing frame portion against said rotating movement about the first pivot coupling;
a second linkage for applying a second wing lifting force to the second wing frame portion tending to support the second wing frame portion against said rotating movement about the second pivot coupling;
a first balance system including a first balance beam pivotally connected at a first pivot connection to the center portion of the main frame structure for applying a first center portion lifting force to the center portion;
the first balance beam being connected to the first linkage so as to apply thereto the first wing lifting force;
the first balance beam being arranged to receive the first spring lifting force from the first spring biased lifting member at a first lift position therealong so as to balance the first spring lifting force between the first center portion lifting force and the first wing lifting force;
and a second balance system including a second balance beam pivotally connected at a second pivot connection to the center portion of the main frame structure for applying a second center portion lifting force to the center portion;
the second balance beam being connected to the second linkage so as to apply thereto the second wing lifting force;
the second balance beam being arranged to receive the second spring lifting force from the second spring biased lifting member at a second lift position therealong so as to balance the second spring lifting force between the second center portion lifting force and the second wing lifting force;
wherein the mounting assembly is connected to the main frame structure so as to allow adjustment movement of the main frame structure relative to the mounting assembly;
wherein there is provided a first element responsive to the adjustment movement to operate on the first balance beam to change the balance of forces between the first wing lifting force and the first center portion lifting force in proportion to the amount of adjustment movement;
and wherein there is provided a second element responsive to the adjustment movement to operate on the second balance beam to change the balance of forces between the second wing lifting force and the second center portion lifting force in proportion to the amount of adjustment movement.
a main frame structure extending across a width of the header for movement in a forward direction generally at right angles to the width across ground including a crop to be harvested;
a mounting assembly for carrying the main frame structure on a propulsion vehicle;
a crop receiving table carried on the main frame structure across the width of the header;
a cutter bar across a front of the table arranged to move over the ground in a cutting action and carrying a cutter knife operable for cutting the crop as the header is moved forwardly across the ground for depositing the crop onto the table, a skid element extending across the width of the header for engaging the ground so as to receive lifting forces from the ground at whatever points of the skid element contact the ground tending to lift the cutter bar;
a crop transport system on the table for moving the cut crop toward a discharge location of the header;
the main frame structure including a center frame portion, a first wing frame portion and a second wing frame portion;
the first wing frame portion being connected to the center frame portion by a first pivot coupling arranged for pivotal movement of the first wing frame portion relative to the center frame portion about a first pivot axis extending in a plane parallel to the forward direction;
the first pivot coupling thus acting to support weight from the first wing frame portion at the pivot coupling while weight from the first wing frame portion outboard of the first pivot coupling tends to rotate the first wing frame portion about the first pivot coupling in a downward direction;
the second wing frame portion being connected to the center frame portion by a second pivot coupling arranged for pivotal movement of the second wing frame portion relative to the center frame portion about a second pivot axis extending in a plane parallel to the forward direction;
the second pivot coupling thus acting to support weight from the second wing frame portion at the second pivot coupling while weight from the second wing frame portion outboard of the second pivot coupling tends to rotate the second wing frame portion about the second pivot coupling in a downward direction;
the mounting assembly including a first spring biased lifting member for applying a first spring lifting force and a second spring biased lifting member for applying a second spring lifting force arranged at transversely spaced positions on the center portion of the main frame structure;
a first linkage for applying a first wing lifting force to the first wing frame portion tending to support the first wing frame portion against said rotating movement about the first pivot coupling;
a second linkage for applying a second wing lifting force to the second wing frame portion tending to support the second wing frame portion against said rotating movement about the second pivot coupling;
a first balance system including a first balance beam pivotally connected at a first pivot connection to the center portion of the main frame structure for applying a first center portion lifting force to the center portion;
the first balance beam being connected to the first linkage so as to apply thereto the first wing lifting force;
the first balance beam being arranged to receive the first spring lifting force from the first spring biased lifting member at a first lift position therealong so as to balance the first spring lifting force between the first center portion lifting force and the first wing lifting force;
and a second balance system including a second balance beam pivotally connected at a second pivot connection to the center portion of the main frame structure for applying a second center portion lifting force to the center portion;
the second balance beam being connected to the second linkage so as to apply thereto the second wing lifting force;
the second balance beam being arranged to receive the second spring lifting force from the second spring biased lifting member at a second lift position therealong so as to balance the second spring lifting force between the second center portion lifting force and the second wing lifting force;
wherein the mounting assembly is connected to the main frame structure so as to allow adjustment movement of the main frame structure relative to the mounting assembly;
wherein there is provided a first element responsive to the adjustment movement to operate on the first balance beam to change the balance of forces between the first wing lifting force and the first center portion lifting force in proportion to the amount of adjustment movement;
and wherein there is provided a second element responsive to the adjustment movement to operate on the second balance beam to change the balance of forces between the second wing lifting force and the second center portion lifting force in proportion to the amount of adjustment movement.
9. The header according to Claim 8 wherein the mounting assembly includes at least one upper mounting link connected to the main frame structure which is operable to effect an angle change of the crop receiving table and the cutter bar relative to the ground about an axis generally parallel to the cutter bar and wherein the first and second elements are responsive to the change of angle.
10. The header according to Claim 9 wherein the first element is arranged to reduce the first wing lifting force relative to the first center portion lifting force when the header is pivoted to increase the angle of the table relative to the ground and wherein the second element is arranged to reduce the second wing lifting force relative to the second center portion lifting force when the header is pivoted to increase the angle of the table relative to the ground.
11. The header according to Claim 8 wherein the mounting assembly is connected to the main frame structure in a manner which allows the height of the mounting assembly to be changed relative to the main frame structure to allow the skid element to rest on the ground in a floating action and wherein the first and second elements are responsive to the change of height.
12 The header according to Claim 11 wherein the first element is arranged to reduce the first wing lifting force relative to the first center portion lifting force when the mounting assembly is lowered relative to the main frame structure and wherein the second element is arranged to reduce the second wing lifting force relative to the second center portion lifting force when the mounting assembly is lowered relative to the main frame structure.
13. The header according to Claim 8 wherein the first element is arranged to apply an additional force to the first balance beam and wherein the second element is arranged to apply an additional force to the second balance beam.
14. The header according to Claim 13 wherein the additional force is applied by a first spring connected between the first balance beam and the mounting assembly and a second spring connected between the second balance beam and the mounting assembly.
15. The header according to Claim 8 wherein the first element is arranged to move the first lift position along the first balance beam and wherein the second element is arranged to move the second lift position along the second balance beam.
16. The header according to Claim 15 wherein the first spring biased lifting member includes a first arm extending longitudinally of the first balance beam and wherein the first arm includes a first surface which is shaped such that its point of contact with the first balance beam moves longitudinally of the first balance beam as an angle between a longitudinal direction of the first ami and a longitudinal direction of the first balance beam changes and wherein the second spring biased lifting member includes a second arm extending longitudinally of the second balance beam and wherein the second arm includes a second surface which is shaped such that its point of contact with the second balance beam moves longitudinally of the second balance beam as an angle between a longitudinal direction of the second arm and a longitudinal direction of the second balance beam changes.
17. The header according to Claim 16 wherein the surface of the first arm is curved along its length and there is provided a first spring strip attached to the first arm with the curved surface of the first arm rolling along the first spring strip as the angle of the first arm relative to the first balance beam changes and wherein the surface of the second arm is curved along its length and there is provided a second spring strip attached to the second arm with the curved surface of the second arm rolling along the second spring strip as the angle of the second arm relative to the second balance beam changes.
18. A crop harvesting header comprising:
a main frame structure extending across a width of the header for movement in a forward direction generally at right angles to the width across ground including a crop to be harvested;
a mounting assembly for carrying the main frame structure on a propulsion vehicle;
a crop receiving table carried on the main frame structure across the width of the header;
a cutter bar across a front of the table arranged to move over the ground in a cutting action and carrying a cutter knife operable for cutting the crop as the header is moved forwardly across the ground for depositing the crop onto the table;
a skid element extending across the width of the header for engaging the ground so as to receive lifting forces from the ground at whatever points of the skid element contact the ground tending to lift the cutter bar;
a crop transport system on the table for moving the cut crop toward a discharge location of the header;
the main frame structure including a center frame portion, a first wing frame portion and a second wing frame portion;
the first wing frame portion being connected to the center frame portion by a first pivot coupling arranged for pivotal movement of the first wing frame portion relative to the center frame portion about a first pivot axis extending in a plane parallel to the forward direction;
the first pivot coupling thus acting to support weight from the first wing frame portion at the pivot coupling while weight from the first wing frame portion outboard of the first pivot coupling tends to rotate the first wing frame portion about the first pivot coupling in a downward direction;
the second wing frame portion being connected to the center frame portion by a second pivot coupling arranged for pivotal movement of the second wing frame portion relative to the center frame portion about a second pivot axis extending in a plane parallel to the forward direction;
the second pivot coupling thus acting to support weight from the second wing frame portion at the second pivot coupling while weight from the second wing frame portion outboard of the second pivot coupling tends to rotate the second wing frame portion about the second pivot coupling in a downward direction;
the mounting assembly including a first spring biased lifting member for applying a first spring lifting force and a second spring biased lifting member for applying a second spring lifting force arranged at transversely spaced positions on the center portion of the main frame structure;
a first linkage for applying a first wing lifting force to the first wing frame portion tending to support the first wing frame portion against said rotating movement about the first pivot coupling;
a second linkage for applying a second wing lifting force to the second wing frame portion tending to support the second wing frame portion against said rotating movement about the second pivot coupling;
a first balance system including a first balance beam pivotally connected at a first pivot connection to the center portion of the main frame structure for applying a first center portion lifting force to the center portion;
the first balance beam being connected to the first linkage so as to apply thereto the first wing lifting force;
the first balance beam being arranged to receive the first spring lifting force from the first spring biased lifting member at a first lift position therealong so as to balance the first spring lifting force between the first center portion lifting force and the first wing lifting force;
and a second balance system including a second balance beam pivotally connected at a second pivot connection to the center portion of the main frame structure for applying a second center portion lifting force to the center portion;
the second balance beam being connected to the second linkage so as to apply thereto the second wing lifting force;
the second balance beam being arranged to receive the second spring lifting force from the second spring biased lifting member at a second lift position therealong so as to balance the second spring lifting force between the second center portion lifting force and the second wing lifting force;
wherein the mounting assembly is connected to the main frame structure so as to allow adjustment movement of the main frame structure relative to the mounting assembly;
wherein there is provided first spring connected between the first balance beam and the mounting assembly responsive to the adjustment movement to apply a force to the first balance beam;
and wherein there is provided second spring connected between the second balance beam and the mounting assembly responsive to the adjustment movement to apply a force to the second balance beam.
a main frame structure extending across a width of the header for movement in a forward direction generally at right angles to the width across ground including a crop to be harvested;
a mounting assembly for carrying the main frame structure on a propulsion vehicle;
a crop receiving table carried on the main frame structure across the width of the header;
a cutter bar across a front of the table arranged to move over the ground in a cutting action and carrying a cutter knife operable for cutting the crop as the header is moved forwardly across the ground for depositing the crop onto the table;
a skid element extending across the width of the header for engaging the ground so as to receive lifting forces from the ground at whatever points of the skid element contact the ground tending to lift the cutter bar;
a crop transport system on the table for moving the cut crop toward a discharge location of the header;
the main frame structure including a center frame portion, a first wing frame portion and a second wing frame portion;
the first wing frame portion being connected to the center frame portion by a first pivot coupling arranged for pivotal movement of the first wing frame portion relative to the center frame portion about a first pivot axis extending in a plane parallel to the forward direction;
the first pivot coupling thus acting to support weight from the first wing frame portion at the pivot coupling while weight from the first wing frame portion outboard of the first pivot coupling tends to rotate the first wing frame portion about the first pivot coupling in a downward direction;
the second wing frame portion being connected to the center frame portion by a second pivot coupling arranged for pivotal movement of the second wing frame portion relative to the center frame portion about a second pivot axis extending in a plane parallel to the forward direction;
the second pivot coupling thus acting to support weight from the second wing frame portion at the second pivot coupling while weight from the second wing frame portion outboard of the second pivot coupling tends to rotate the second wing frame portion about the second pivot coupling in a downward direction;
the mounting assembly including a first spring biased lifting member for applying a first spring lifting force and a second spring biased lifting member for applying a second spring lifting force arranged at transversely spaced positions on the center portion of the main frame structure;
a first linkage for applying a first wing lifting force to the first wing frame portion tending to support the first wing frame portion against said rotating movement about the first pivot coupling;
a second linkage for applying a second wing lifting force to the second wing frame portion tending to support the second wing frame portion against said rotating movement about the second pivot coupling;
a first balance system including a first balance beam pivotally connected at a first pivot connection to the center portion of the main frame structure for applying a first center portion lifting force to the center portion;
the first balance beam being connected to the first linkage so as to apply thereto the first wing lifting force;
the first balance beam being arranged to receive the first spring lifting force from the first spring biased lifting member at a first lift position therealong so as to balance the first spring lifting force between the first center portion lifting force and the first wing lifting force;
and a second balance system including a second balance beam pivotally connected at a second pivot connection to the center portion of the main frame structure for applying a second center portion lifting force to the center portion;
the second balance beam being connected to the second linkage so as to apply thereto the second wing lifting force;
the second balance beam being arranged to receive the second spring lifting force from the second spring biased lifting member at a second lift position therealong so as to balance the second spring lifting force between the second center portion lifting force and the second wing lifting force;
wherein the mounting assembly is connected to the main frame structure so as to allow adjustment movement of the main frame structure relative to the mounting assembly;
wherein there is provided first spring connected between the first balance beam and the mounting assembly responsive to the adjustment movement to apply a force to the first balance beam;
and wherein there is provided second spring connected between the second balance beam and the mounting assembly responsive to the adjustment movement to apply a force to the second balance beam.
19. ~A crop harvesting header comprising:
a main frame structure extending across a width of the header for movement in a forward direction generally at right angles to the width across ground including a crop to be harvested;
a mounting assembly for carrying the main frame structure on a propulsion vehicle;
a crop receiving table carried on the main frame structure across the width of the header;
a cutter bar across a front of the table arranged to move over the ground in a cutting action and carrying a cutter knife operable for cutting the crop as the header is moved forwardly across the ground for depositing the crop onto the table;
a skid element extending across the width of the header for engaging the ground so as to receive lifting forces from the ground at whatever points of the skid element contact the ground tending to lift the cutter bar;
a crop transport system on the table for moving the cut crop toward a discharge location of the header;
the main frame structure including a center frame portion, a first wing frame portion and a second wing frame portion;
the first wing frame portion being connected to the center frame portion by a first pivot coupling arranged for pivotal movement of the first wing frame portion relative to the center frame portion about a first pivot axis extending in a plane parallel to the forward direction;
the first pivot coupling thus acting to support weight from the first wing frame portion at the pivot coupling while weight from the first wing frame portion outboard of the first pivot coupling tends to rotate the first wing frame portion about the first pivot coupling in a downward direction;
the second wing frame portion being connected to the center frame portion by a second pivot coupling arranged for pivotal movement of the second wing frame portion relative to the center frame portion about a second pivot axis extending in a plane parallel to the forward direction;
the second pivot coupling thus acting to support weight from the second wing frame portion at the second pivot coupling while weight from the second wing frame portion outboard of the second pivot coupling tends to rotate the second wing frame portion about the second pivot coupling in a downward direction;
the mounting assembly including a first spring biased lifting member for applying a first spring lifting force and a second spring biased lifting member for applying a second spring lifting force arranged at transversely spaced positions on the center portion of the main frame structure;
a first linkage for applying a first wing lifting force to the first wing frame portion tending to support the first wing frame portion against said rotating movement about the first pivot coupling;
a second linkage for applying a second wing lifting force to the second wing frame portion tending to support the second wing frame portion against said rotating movement about the second pivot coupling;
a first balance system including a first balance beam pivotally connected at a first pivot connection to the center portion of the main frame structure for applying a first center portion lifting force to the center portion;
the first balance beam being connected to the first linkage so as to apply thereto the first wing lifting force;
the first balance beam being arranged to receive the first spring lifting force from the first spring biased lifting member at a first lift position therealong so as to balance the first spring lifting force between the first center portion lifting force and the first wing lifting force;
and a second balance system including a second balance beam pivotally connected at a second pivot connection to the center portion of the main frame structure for applying a second center portion lifting force to the center portion;
the second balance beam being connected to the second linkage so as to apply thereto the second wing lifting force;
the second balance beam being arranged to receive the second spring lifting force from the second spring biased lifting member at a second lift position therealong so as to balance the second spring lifting force between the second center portion lifting force and the second wing lifting force;
wherein the mounting assembly is connected to the main frame structure so as to allow adjustment movement of the main frame structure relative to the mounting assembly;
wherein there the first lift position is moved along the first balance beam in response to said adjustment movement;
and wherein the second lift position is moved along the second balance beam in response to said adjustment movement.
a main frame structure extending across a width of the header for movement in a forward direction generally at right angles to the width across ground including a crop to be harvested;
a mounting assembly for carrying the main frame structure on a propulsion vehicle;
a crop receiving table carried on the main frame structure across the width of the header;
a cutter bar across a front of the table arranged to move over the ground in a cutting action and carrying a cutter knife operable for cutting the crop as the header is moved forwardly across the ground for depositing the crop onto the table;
a skid element extending across the width of the header for engaging the ground so as to receive lifting forces from the ground at whatever points of the skid element contact the ground tending to lift the cutter bar;
a crop transport system on the table for moving the cut crop toward a discharge location of the header;
the main frame structure including a center frame portion, a first wing frame portion and a second wing frame portion;
the first wing frame portion being connected to the center frame portion by a first pivot coupling arranged for pivotal movement of the first wing frame portion relative to the center frame portion about a first pivot axis extending in a plane parallel to the forward direction;
the first pivot coupling thus acting to support weight from the first wing frame portion at the pivot coupling while weight from the first wing frame portion outboard of the first pivot coupling tends to rotate the first wing frame portion about the first pivot coupling in a downward direction;
the second wing frame portion being connected to the center frame portion by a second pivot coupling arranged for pivotal movement of the second wing frame portion relative to the center frame portion about a second pivot axis extending in a plane parallel to the forward direction;
the second pivot coupling thus acting to support weight from the second wing frame portion at the second pivot coupling while weight from the second wing frame portion outboard of the second pivot coupling tends to rotate the second wing frame portion about the second pivot coupling in a downward direction;
the mounting assembly including a first spring biased lifting member for applying a first spring lifting force and a second spring biased lifting member for applying a second spring lifting force arranged at transversely spaced positions on the center portion of the main frame structure;
a first linkage for applying a first wing lifting force to the first wing frame portion tending to support the first wing frame portion against said rotating movement about the first pivot coupling;
a second linkage for applying a second wing lifting force to the second wing frame portion tending to support the second wing frame portion against said rotating movement about the second pivot coupling;
a first balance system including a first balance beam pivotally connected at a first pivot connection to the center portion of the main frame structure for applying a first center portion lifting force to the center portion;
the first balance beam being connected to the first linkage so as to apply thereto the first wing lifting force;
the first balance beam being arranged to receive the first spring lifting force from the first spring biased lifting member at a first lift position therealong so as to balance the first spring lifting force between the first center portion lifting force and the first wing lifting force;
and a second balance system including a second balance beam pivotally connected at a second pivot connection to the center portion of the main frame structure for applying a second center portion lifting force to the center portion;
the second balance beam being connected to the second linkage so as to apply thereto the second wing lifting force;
the second balance beam being arranged to receive the second spring lifting force from the second spring biased lifting member at a second lift position therealong so as to balance the second spring lifting force between the second center portion lifting force and the second wing lifting force;
wherein the mounting assembly is connected to the main frame structure so as to allow adjustment movement of the main frame structure relative to the mounting assembly;
wherein there the first lift position is moved along the first balance beam in response to said adjustment movement;
and wherein the second lift position is moved along the second balance beam in response to said adjustment movement.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2561463A CA2561463C (en) | 2006-09-22 | 2006-09-22 | Device for maintaining wing balance on a multi-section header |
| PCT/CA2007/001590 WO2008034217A1 (en) | 2006-09-22 | 2007-09-12 | Device for maintaining wing balance on a multi-section header |
| AU2007299524A AU2007299524B2 (en) | 2006-09-22 | 2007-09-12 | Device for maintaining wing balance on a multi-section header |
| EA200970309A EA013834B1 (en) | 2006-09-22 | 2007-09-12 | Device for maintaining wing balance on a multi-section header |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2561463A CA2561463C (en) | 2006-09-22 | 2006-09-22 | Device for maintaining wing balance on a multi-section header |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2561463A1 true CA2561463A1 (en) | 2008-03-22 |
| CA2561463C CA2561463C (en) | 2012-09-11 |
Family
ID=39190406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2561463A Active CA2561463C (en) | 2006-09-22 | 2006-09-22 | Device for maintaining wing balance on a multi-section header |
Country Status (4)
| Country | Link |
|---|---|
| AU (1) | AU2007299524B2 (en) |
| CA (1) | CA2561463C (en) |
| EA (1) | EA013834B1 (en) |
| WO (1) | WO2008034217A1 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9635810B2 (en) | 2012-12-18 | 2017-05-02 | Honey Bee Manufacturing Ltd. | Draper seal for crop harvesting header |
| US9706708B2 (en) | 2015-03-13 | 2017-07-18 | Honey Bee Manufacturing Ltd. | Controlling a positioning system for an agricultural implement |
| US9750189B2 (en) | 2014-03-26 | 2017-09-05 | Honey Bee Manufacturing Ltd. | Crop flow assisting device for harvesting header |
| US9844183B2 (en) | 2014-03-26 | 2017-12-19 | Honey Bee Manufacturing Ltd. | Cam reel with complex bat path |
| US9901032B2 (en) | 2013-12-30 | 2018-02-27 | Honey Bee Manufacturing Ltd. | Harvesting header transport |
| US10021823B2 (en) | 2013-12-30 | 2018-07-17 | Honey Bee Manufacturing Inc. | Harvesting header transport apparatus and method |
| US10194590B2 (en) | 2013-01-28 | 2019-02-05 | Honey Bee Manufacturing Ltd. | Harvesting header bat with adjustably spaced quick release fingers |
| US10433479B2 (en) | 2014-06-09 | 2019-10-08 | Honey Bee Manufacturing Ltd. | Harvesting header knife drive assembly |
| US10462966B2 (en) | 2015-03-13 | 2019-11-05 | Honey Bee Manufacturing Ltd. | Controlling a positioning system for an agricultural implement |
| US10687465B2 (en) | 2016-07-29 | 2020-06-23 | Honey Bee Manufacturing Ltd. | Header cutting system with knife guards |
| EP3682722A1 (en) * | 2019-01-18 | 2020-07-22 | AGCO International GmbH | Improved hay tool |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8635842B2 (en) | 2009-08-05 | 2014-01-28 | Kevin Markt | Flexible row crop header for an agricultural harvester |
| US8495855B1 (en) * | 2012-04-05 | 2013-07-30 | Deere & Company | Draper header with pivoting conveyor rollers |
| ES2499115B1 (en) * | 2013-03-26 | 2015-06-16 | Francisco MORENO MARTÍNEZ | Folding head cutting blade attachment device for mowing harvesters |
| US9198349B2 (en) * | 2013-07-12 | 2015-12-01 | Deere & Company | Articulated harvesting head ground force control circuit |
| CN104054459B (en) * | 2013-11-05 | 2017-02-22 | 广西三零一机械有限公司 | Header stabilizing device of harvester |
| CA2876686C (en) | 2014-12-24 | 2021-01-19 | Honey Bee Manufacturing Ltd. | Reel system |
| EA038881B1 (en) * | 2018-08-27 | 2021-11-01 | Макдон Индастриз Лтд. | Crop header with wing balance calibration |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4409780A (en) * | 1982-03-11 | 1983-10-18 | Kansas State University Research Foundation | Folding header assembly |
| US4446683A (en) * | 1982-09-29 | 1984-05-08 | Canadian Cooperative Implements Limited | Knife drive |
| DE3441209A1 (en) * | 1984-11-10 | 1986-05-15 | Claas Ohg, 4834 Harsewinkel | CUTTER BOX FOR HARVESTING MACHINES WITH FLEXIBLE CUTTER |
| DE3722143C2 (en) * | 1987-07-04 | 1996-03-28 | Claas Ohg | Crop pick-up device for harvesting machines, in particular for self-propelled combine harvesters |
| US4956966A (en) * | 1988-06-22 | 1990-09-18 | Macdon Industries Ltd. | Header for a combine harvesting machine |
| CA2110775C (en) * | 1993-12-06 | 1999-03-02 | Gregory J. Honey | A feeder adapter for mounting a combine header to a feeder housing of a combine |
| CA2387898C (en) * | 2001-06-18 | 2005-01-11 | Macdon Industries Ltd. | Multi-section header with flexible crop cutting knife |
| US6865871B2 (en) * | 2003-07-14 | 2005-03-15 | Macdon Industries Ltd. | Crop feed arrangement for the header of a combine harvester |
-
2006
- 2006-09-22 CA CA2561463A patent/CA2561463C/en active Active
-
2007
- 2007-09-12 EA EA200970309A patent/EA013834B1/en not_active IP Right Cessation
- 2007-09-12 AU AU2007299524A patent/AU2007299524B2/en active Active
- 2007-09-12 WO PCT/CA2007/001590 patent/WO2008034217A1/en active Application Filing
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11006578B2 (en) | 2012-12-18 | 2021-05-18 | Honey Bee Manufacturing Ltd. | Draper seal for crop header |
| US10694675B2 (en) | 2012-12-18 | 2020-06-30 | Honey Bee Manufacturing Ltd. | Draper seal for crop header |
| US10285331B2 (en) | 2012-12-18 | 2019-05-14 | Honey Bee Manufacturing Ltd. | Draper seal for crop header |
| US9635810B2 (en) | 2012-12-18 | 2017-05-02 | Honey Bee Manufacturing Ltd. | Draper seal for crop harvesting header |
| US10194590B2 (en) | 2013-01-28 | 2019-02-05 | Honey Bee Manufacturing Ltd. | Harvesting header bat with adjustably spaced quick release fingers |
| US10021823B2 (en) | 2013-12-30 | 2018-07-17 | Honey Bee Manufacturing Inc. | Harvesting header transport apparatus and method |
| US9901032B2 (en) | 2013-12-30 | 2018-02-27 | Honey Bee Manufacturing Ltd. | Harvesting header transport |
| US9844183B2 (en) | 2014-03-26 | 2017-12-19 | Honey Bee Manufacturing Ltd. | Cam reel with complex bat path |
| US9807935B2 (en) | 2014-03-26 | 2017-11-07 | Honey Bee Manufacturing Ltd. | Harvesting cam reel with convertible transport mode |
| US9750189B2 (en) | 2014-03-26 | 2017-09-05 | Honey Bee Manufacturing Ltd. | Crop flow assisting device for harvesting header |
| US10433479B2 (en) | 2014-06-09 | 2019-10-08 | Honey Bee Manufacturing Ltd. | Harvesting header knife drive assembly |
| US11547043B2 (en) | 2014-06-09 | 2023-01-10 | Honey Bee Manufacturing Ltd. | Harvesting header knife drive assembly |
| US9986685B2 (en) | 2015-03-13 | 2018-06-05 | Honey Bee Manufacturing Ltd. | Controlling a positioning system for an agricultural implement |
| US10462966B2 (en) | 2015-03-13 | 2019-11-05 | Honey Bee Manufacturing Ltd. | Controlling a positioning system for an agricultural implement |
| US9706708B2 (en) | 2015-03-13 | 2017-07-18 | Honey Bee Manufacturing Ltd. | Controlling a positioning system for an agricultural implement |
| US10687465B2 (en) | 2016-07-29 | 2020-06-23 | Honey Bee Manufacturing Ltd. | Header cutting system with knife guards |
| US11425859B2 (en) | 2016-07-29 | 2022-08-30 | Honey Bee Manufacturing Ltd. | Header cutting system with knife guards |
| EP3682722A1 (en) * | 2019-01-18 | 2020-07-22 | AGCO International GmbH | Improved hay tool |
| US11357168B2 (en) | 2019-01-18 | 2022-06-14 | Agco Feucht Gmbh | Towed implement that compensates for unbalanced loads caused by offset centre of gravity |
Also Published As
| Publication number | Publication date |
|---|---|
| EA200970309A1 (en) | 2009-08-28 |
| AU2007299524B2 (en) | 2011-12-01 |
| AU2007299524A1 (en) | 2008-03-27 |
| EA013834B1 (en) | 2010-08-30 |
| CA2561463C (en) | 2012-09-11 |
| WO2008034217A1 (en) | 2008-03-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |