Wheel lift assist frame for strip tilling

• US 20060191695A1
• Filed: 02/28/2005
• Published: 08/31/2006
• Est. Priority Date: 02/28/2005
• Status: Abandoned Application

• Current Assignee: Unverferth Mfg Company Incorporated
• Original Assignee: Unverferth Mfg Company Incorporated
• Inventors: Walker, Mark, Anderson, Richard R., Maenle, William C., Walker, Barton, Walker, Drew, Smith, David R.
• Application Number:
  US11/066,547
• Publication Number:
  US 20060191695A1
• Time in Patent Office: Days
• US Class Current: 172/452
• CPC Class Codes: A01B 63/22 operated by hydraulic or pneumatic means

Abstract

A wheel lift-assist frame comprises a pair of support beams, which may be coupled with a tillage machine at first ends, each beam to the left or right of the center of the tillage machine respective and running rearward of the tillage machine. The support beams may also be coupled with a planter. A cross beam is coupled with the support beams at second ends thereof. A plurality of wheel assemblies are fixed to the cross beam at points such that the wheels run between rows created by the tillage machine.

Claims

1. A wheel lift-assist frame for a combined tillage and planter machine, comprising:

first and second support beams attachable to a tillage machine at first ends thereof, said first and second support beams each including a means for coupling with a frame of a planter;

a cross beam coupled with second ends of said first and second support beams, forming a support frame;

first and second wheel assemblies respectively coupled with said first and second support beams at said second ends, said first and second wheel assemblies extending away from said first and second support beams in a direction parallel to said first and second supports beams; and

at least one additional wheel assembly coupled with said cross beam at a point between said first and second support beams and extending away from said first and second support beams in a direction parallel to said first and second supports beams;

wherein each said wheel assembly is positioned to run between rows created by said tillage machine.

2. The wheel lift-assist frame as recited in claim 1, further comprising first and second brackets mountable to a frame of a rear of the tillage machine for attaching said first and second support beams thereto, said first and second brackets allowing said first ends of said first and second support beams attached thereto to be locked in a rigid position or to rotate freely about a bracket pivot.

3. The wheel lift-assist frame as recited in claim 1, wherein, when coupled with the tillage machine and planter, the first and second support beams extend rearward from the tillage machine left and right of a centerline of the planter, respectively.

4. The wheel lift-assist frame as recited in claim 1, wherein each said wheel assembly comprises hydraulically controlled 4-bar linkages for vertical movement of the wheels.

6. The wheel lift-assist frame as recited in claim 1, wherein said at least one additional wheel assembly includes a third wheel assembly mounted to the cross tube offset substantially outboard from one of the first or second caster wheel assemblies.

7. The wheel lift-assist frame as recited in claim 6, wherein the degree of offset may allow clearance for complete swivel rotation of all of the caster wheel assemblies.

8. The wheel lift-assist frame as recited in claim 1, wherein said means for coupling include a clamp bar having a shape which prevents loosening of said means for coupling.

9. The wheel lift-assist frame as recited in claim 1, further comprising a common hydraulic system for providing hydraulic fluid to said wheel assemblies.

10. The wheel lift-assist frame as recited in claim 9, wherein said hydraulic system includes a plurality of rephrase cylinders with built-in bypass systems, said rephrase cylinders maintaining pressure on each of said wheels evenly.

11. The wheel lift-assist frame as recited in claim 9, wherein said common hydraulic system comprises an accumulator.

12. The wheel lift-assist frame as recited in claim 1, wherein said at least one additional wheel assembly includes third and fourth wheel assemblies mounted to the cross tube offset substantially outboard from said first or second caster wheel assemblies, respectively.

13. The wheel lift-assist frame as recited in claim 12, wherein the degree of offset may allow clearance for complete swivel rotation of all of the wheel assemblies.

14. The wheel lift-assist frame as recited in claim 12, wherein each said wheel assembly comprises hydraulically controlled 4-bar linkages for vertical movement of the wheels.

15. The wheel lift-assist frame as recited in claim 14, further comprising first and second extender beams coupled with said first and second support beams and extending rearward, wherein said first and second wheel assemblies are coupled with rearward ends of said first and second extender beams respectively.

16. A combined strip tillage and planter machine, comprising:

a strip tillage machine;

a planter;

at least two support beams attached at first ends of said beams to a frame of said strip tillage machine and extending rearward of said strip tillage machine, each of said support beams also being attached to a frame of said planter at a point to the right or left of a centerline of said planter such that said planter trails said tillage machine in use;

a cross beam coupled with second ends of said at least two support beams to form a support frame therewith; and

at least three wheel assemblies coupled with said cross beam and extending rearward of said cross beam, said at least three wheel assemblies being coupled at points along said cross beam such that the wheels of the wheel assemblies run between rows created by said strip tillage machine.

17. The machine as recited in claim 16, further comprising a plurality of brackets mountable to said frame of the strip tillage machine for attaching said at least two support beams thereto, said first and second brackets allowing said first ends of said first and second support beams attached thereto to be locked in a rigid position or to rotate freely about a bracket pivot.

18. The machine as recited in claim 16, wherein first and second support beams of said at least two support beams are attached to the tillage machine and the planter, the first and second support beams extending rearward from the tillage machine left and right of a centerline of the planter, respectively.

19. The machine as recited in claim 16, wherein each said wheel assembly comprises hydraulically controlled 4-bar linkages for vertical movement of the wheels.

20. The machine as recited in claim 16, wherein each of said wheel assemblies are offset from adjacent wheel assemblies to allow clearance for complete swivel rotation of the wheels of the wheel assemblies.

21. The machine as recited in claim 16, further comprising a coupling means for attaching each said support beam to the frame of said planter, said coupling means including a clamp bar having a shape which prevents loosening of said coupling means.

22. The machine as recited in claim 21, wherein said clamp bar has a first surface which is flat and a second surface opposite of said first surface, said second surface having raised portions, and holes through said clamp bar from said first surface to said second surface, said holes being made in the raised portions of the second surface.

23. The machine as recited in claim 16, further comprising a clamp for attaching each said support beam to the frame of said planter, said clamp including a clamp bar having a first surface which is flat and a second surface opposite of said first surface, said second surface having raised portions, and receptacles through said clamp bar at said raised portions, and tensioning means for securing said clamp bar to one of said support beams.

24. The machine as recited in claim 19, further comprising a common hydraulic system for each of said at least three wheel assemblies, said common hydraulic system including an accumulator that maintains constant pressure to each of said wheel assemblies.

25. The wheel lift-assist frame as recited in claim 24, wherein said hydraulic system includes a plurality of rephrase cylinders with built-in bypass systems, said rephrase cylinders maintaining pressure on each of said wheels evenly.

26. The machine as recited in claim 16, wherein said at least three wheel assemblies includes first or second caster wheel assemblies respectively coupled to said first and second support beams, and third and fourth castor wheel assemblies mounted to the cross tube between said first and second castor wheel assemblies, offset substantially from said first or second caster wheel assemblies, respectively.

27. The machine as recited in claim 26, wherein the degree of offset may allow clearance for complete swivel rotation of all of the wheel assemblies.

28. The machine as recited in claim 26, further comprising first and second extender beams coupled with said first and second support beams and extending rearward of said cross beam, wherein said first and second castor wheel assemblies are coupled with rearward ends of said first and second extender beams respectively.

29. A wheel lift support frame for coupling a strip tillage machine with a planter, comprising:

a U-shaped support frame having first and second sides and a bottom section, said support frame mountable onto a frame of the planter at midpoints on the first and second sides of the frame and attachable to a rear-frame of the tillage machine at endpoints of first and second sides of the support frame; and

a plurality of lift wheels attached to the bottom section of the support frame and spaced from one another along the bottom section to run between rows created by the tillage machine.

30. The wheel lift support frame as recited in claim 29, wherein said plurality of lift wheels comprise hydraulic powered castor wheel assemblies, and said wheel lift support frame further comprises a hydraulic system coupled with each said hydraulic powered castor wheel assembly and including at least one accumulator, said hydraulic system connectable with a hydraulic system of a tractor.

31. The wheel lift support frame as recited in claim 29, further comprising at least one extension piece for offsetting at least one wheel assembly rearward of said frame.

32. The wheel lift support frame as recited in claim 29, further comprising a plurality of brackets mountable to said rear frame of the strip tillage machine for attaching said endpoints of first and second sides of the support frame thereto, said first and second brackets allowing said endpoints of first and second sides to be locked in a rigid position or to rotate freely about a bracket pivot.

33. The wheel lift support frame as recited in claim 29, wherein each of said wheel assemblies are offset from adjacent wheel assemblies to allow clearance for complete swivel rotation of the wheels of the wheel assemblies.

34. The wheel lift support frame as recited in claim 29, wherein said bottom portion of said support frame has a plurality of receptacles for adjusting a position of each said wheel assembly laterally, along said bottom portion.

35. The wheel lift support frame as recited in claim 29, further comprising a coupling means for attaching the frame of the planter to midpoints on the first and second sides of the support frame, said coupling means including a clamp bar having a shape which prevents loosening of said coupling means.

36. The wheel lift support frame as recited in claim 29, wherein said first and second sides of the support frame include flanged portions for attaching the frame of the planter to the first and second sides of the support frame.

37. A method for combining a tillage machine and a planter, comprising steps of:

providing first and second support beams each having first and second ends;

attaching first ends of the first and second support beams to a rear frame of a tillage machine such that the first and second support beams are aligned perpendicular to and rearward of said rear frame;

attaching said first and second support beams to a top frame of a planter, said planter being aligned to trail said tillage machine and being attached at a point between said first and second ends of each support beam, such that said first and second support beams being attached left and right of a centerline of said planter respectively and that said second ends of said first and second support beam extend past the rearward end of the planter;

attaching said second ends of said first and second support beams with a third support beam;

attaching a plurality of wheel lift assemblies to said third support beam such that said wheel lift assemblies extend rearward of said third support beam and will run between rows created by said tillage machine.

38. The method of claim 37, wherein the step of attaching the first and second support beams to the rear frame of the tillage machine include attaching brackets to said rear frame, said brackets being adjustable to hold the first ends of the first and second support beams rigid or to allow said first ends to rotate freely about a pivot parallel to said rear frame.

39. The method of claim 37, wherein the step of attaching said first and second support beams to a top frame of a planter includes a step of fastening the top frame of the planter to the support beams with a U-bolt.

40. The method of claim 37, further comprising a step of providing a hydraulic system for controlling an amount of lift by said wheel lift assemblies and a step of providing an accumulator within said hydraulic system for maintaining pressure to all of said wheel lift assemblies.

41. The method of claim 37, further comprising a step of providing a hydraulic system for controlling an amount of lift by said wheel lift assemblies, said hydraulic system being configured to maintain the amount of lift by said wheel lift assemblies to be substantially the same for each of said wheel lift assemblies.