Drive over conveyor pit assembly

• US 7,063,497 B2
• Filed: 02/06/2003
• Issued: 06/20/2006
• Est. Priority Date: 03/06/2002
• Status: Active Grant

• Current Assignee: Mast Productions, Inc.
• Original Assignee: Brent C. Mast, Steve J. Mast
• Inventors: Mast, Steve J., Mast, Brent C.
• Primary Examiner(s): Tran, Khoi H.
• Application Number:
  US10/361,050
• Publication Number:
  US 20030170103A1
• Time in Patent Office: 1,230 Days
• Field of Search: 414/226.04, 414572-574, 414/474, 414/476, 414/582, 414/385, 414/397, 414/399, 414/401, 198/302, 280/43, 280/43.17, 280/43.22, 280/414.5
• US Class Current: 414/572
• CPC Class Codes: B65G 47/18 Arrangements or applications of hoppers or chutes
• CPC Class Codes: B65G 67/24 Unloading land vehicles

Abstract

A drive over conveyor pit assembly includes a mainframe including a grain pit located between and adjacent a plurality of drive over sections. Attached to the mainframe are a plurality of entrance ramps and a pair of exit ramps. Each ramp is pivotably attached to an end of the drive over sections. The drive over conveyor pit assembly includes a drive over pit coupled to a grain conveyor in such a configuration to be transported with the main grain conveyor by a single tow vehicle. The assembly includes a drive over conveyor pit hydraulically positioned for transportation.

Claims

1. A grain transfer system comprising:

a drive over conveyor pit; and

a grain auger comprising a feed chute, said drive over conveyor pit comprising;

a mainframe comprising;

a plurality of drive over sections each comprising a first end and a second end;

a grain pit located between and adjacent to said plurality of drive over sections;

a front, configured to be attached to said feed chute; and

a rear;

entrance and exit ramps pivotably attached to said drive over sections;

a hydraulic front lift assembly attached to said front of said mainframe;

a hydraulic rear lift assembly attached to said rear of said mainframe; and

a track bar, said auger comprising a frame member, said track bar configured to be attached between said drive over conveyor pit and said frame member, said track bar configuring said system to allow said pit and said auger to be towed substantially parallel to one another using a single vehicle.

2. A grain transfer system according to claim 1 wherein said hydraulic front lift assembly and said hydraulic rear lift assembly are configured to allow said mainframe to be lowered to a surface.

3. A grain transfer system according to claim 2 wherein said hydraulic front lift assembly and said hydraulic rear lift assembly are configured to lift and pivot when said mainframe contacts the surface.

4. A grain transfer system according to claim 1 wherein said hydraulic front lift assembly and said hydraulic rear lift assembly comprise tires mounted on caster wheel assemblies.

5. A grain transfer system according to claim 4 wherein for said hydraulic front lift assembly said caster wheel assemblies are rotatably mounted to an axle frame, said axle frame pivotably mounted to a transition housing attached to said mainframe.

6. A grain transfer system according to claim 5 wherein said hydraulic front lift assembly comprises:

a first caster wheel assembly;

a second caster wheel assembly;

a left axle frame; and

a right axle frame, said first caster wheel assembly rotatably mounted to said left axle frame, said second caster wheel assembly rotatably mounted to said right axle frame, said left axle frame and said right axle frame pivotably mounted to opposite sides of said transition housing.

7. A grain transfer system according to claim 2 wherein said hydraulic front lift assembly comprises:

an axle assembly;

a cylinder linkage attachment;

a hydraulic cylinder extending between and attached to said axle assembly and said cylinder linkage attachment;

a transition housing configured to be attached to a mainframe of the drive over conveyor pit;

a plurality of caster wheel assemblies configured to be rotatably mounted to said axle assembly, said caster wheel assemblies mounted at ends of said axle assembly;

a plurality of tires, a respective said tire mounted to a respective said caster wheel assembly; and

a plurality of linkage arms, said linkage arms pivotably attached to said axle assembly and said transition housing, at least one of said linkage arms also being attached to said cylinder linkage attachment, such that retracting said hydraulic cylinder causes a distance between said axle assembly and said cylinder linkage attachment to decrease due to the pivoting of said linkage arms, causing the mainframe to lower with respect to said tires, and such that extending said hydraulic cylinder causes a distance between said axle assembly and said cylinder linkage attachment to increase due to the pivoting of said linkage arms, causing the mainframe to rise with respect to said tires.

8. A grain transfer system according to claim 7 wherein said axle assembly comprises:

a main member comprising a center portion, a first end, and a second end

a left extension comprising a first end extending from said first end of said center portion and a second end comprising a sleeve for mounting of said caster wheel assembly;

a right extension comprising a first end extending from said second end of said center portion and a second end comprising a sleeve for mounting of a second caster wheel assembly;

a cylinder mounting member which extends from said center portion of said main member, said cylinder mounting member comprising a mounting hole for mounting said hydraulic cylinder and configured to extend upward from said center portion; and

a pair of linkage arm attachment members which extend from said main member, one said linkage arm attachment member extending from said main member near said first end, and another said linkage arm attachment member extending from said main member near said second end, said linkage arm attachment members extending at an angle from said main member and including a pair of holes therethrough to which said linkage arms are pivotably attached.

9. A grain transfer system comprising:

a drive over conveyor pit comprising a frame, a hydraulic front lift assembly, and a hydraulic rear lift assembly, said front lift assembly and said rear lift assembly configured to raise and pivot away from said frame when said frame is lowered onto a surface;

a grain auger comprising a frame member; and

a track bar configured to be attached between said drive over conveyor pit and said frame member, said track bar configuring said system to allow said pit and said auger to be towed substantially parallel to one another using a single vehicle.

10. A grain transfer system according to claim 9 wherein said front lift assembly comprises:

an axle assembly;

a cylinder linkage attachment;

a hydraulic cylinder extending between and attached to said axle assembly and said cylinder linkage attachment;

a transition housing configured to be attached to said frame of said drive over conveyor pit;

a plurality of caster wheel assemblies configured to be rotatably mounted to said axle assembly, said caster wheel assemblies mounted at ends of said axle assembly;

a plurality of tires, a respective said tire mounted to a respective said caster wheel assembly; and

a plurality of linkage arms, said linkage arms pivotably attached to said axle assembly and said transition housing, at least one of said linkage arms also being attached to said cylinder linkage attachment, such that retracting said hydraulic cylinder causes a distance between said axle assembly and said cylinder linkage attachment to decrease due to the pivoting of said linkage arms, causing said frame to lower with respect to said tires, and such that extending said hydraulic cylinder causes a distance between said axle assembly and said cylinder linkage attachment to increase due to the pivoting of said linkage arms, causing said frame to rise with respect to said tires.

11. A grain transfer system according to claim 9 wherein said axle assembly comprises:

a main member comprising a center portion, a first end, and a second end

a left extension comprising a first end extending from said first end of said center portion and a second end comprising a sleeve for mounting of said caster wheel assembly;

a right extension comprising a first end extending from said second end of said center portion and a second end comprising a sleeve for mounting of a second caster wheel assembly;

a cylinder mounting member which extends from said center portion of said main member, said cylinder mounting member comprising a mounting hole for mounting said hydraulic cylinder and configured to extend upward from said center portion; and

a pair of linkage arm attachment members which extend from said main member, one said linkage arm attachment member extending from said main member near said first end, and another said linkage arm attachment member extending from said main member near said second end, said linkage arm attachment members extending at an angle from said main member and including a pair of holes therethrough to which said linkage arms are pivotably attached.

12. A grain transfer system according to claim 11 wherein said linkage arm attachment members extend from said main member at an angle between 90 and 180 degrees from said cylinder mounting member.