Hook rotor stripper

Patent metadata

Field	Value
Publication number	US-8959883-B2
Application number	US-201213654696-A
Country	US
Kind code	B2
Filing date	Oct 18, 2012
Priority date	Oct 18, 2012
Publication date	Feb 24, 2015
Grant date	Feb 24, 2015

Abstract

Rotor strippers are sized and shaped to securely fit between adjacent rotor fingers on a rotor shaft of a rotor for stripping crop material and for conveying the crop material to a bale chamber for forming a bale. Each rotor stripper is formed of a segment comprised of two opposing side walls with an interior section extending between the two opposing side walls. A first end portion has a curved hook section shaped to securely fit around a majority portion of the rotary shaft for secure engagement therewith; a second end portion is secured to a backbone portion of the rotor allowing the segment to remain fixed with respect to rotation of the rotary shaft; and a middle portion extends between the first and second end portions in a curved manner.

First claim

We claim:

1. A rotor stripper configured to securely engage a rotary shaft of a rotor in a baler for stripping crop material supplied to the rotor, the rotor stripper configured to securely fit between adjacent rotor fingers, the rotor stripper comprising:
a segment comprised of two opposing side walls with an interior section extending between the two opposing side walls, the segment comprising a first end portion comprising a curved hook section forming an opening shaped to securely extend around a majority portion of a circumference of the rotary shaft for secure engagement therewith; a second end portion configured to be secured to a backbone portion of the rotor allowing the segment to remain fixed with respect to rotation of the rotary shaft; and a middle portion extending between the first and second end portions in a curved manner to strip the crop material and facilitate flow of the crop material supplied to the rotor rearward from near the first end portion to beyond the second end portion; and
a gap located between an end of the hook section and the second end portion that is linked by a passage to the opening wherein a width of the gap is at least as wide as a width of the opening and the gap is offset such that it is closer than the opening to second end portion.

2. The rotor stripper of claim 1 , wherein the interior section extending between the two opposing side walls comprises a top concave portion.

3. The rotor stripper of claim 2 , wherein each of the two opposing side walls comprises a rimmed portion adjacent the top concave portion.

4. The rotor stripper of claim 1 , wherein the interior section extending between the two opposing side walls comprises a flat profile.

5. The rotor stripper of claim 1 , wherein the curved hook section extends around the circumference of the rotary shaft by about 270°.

6. The rotor stripper of claim 1 , further comprising a mounting boss extending through the segment at the second end portion to secure the segment to the backbone portion of the rotor.

7. The rotor stripper of claim 1 , wherein the interior section is partially hollow.

8. The rotor stripper of claim 1 , wherein the segment is comprised of one solid piece.

9. The rotor stripper of claim 1 , wherein the segment is comprised of two longitudinally half segments, the two longitudinally half segments configured to be joined together lengthwise to form the segment.

10. A rotor configured to convey crop material from a pickup assembly to an inlet of a bale chamber, the rotor comprising:
rotor augers for providing rotation;
a rotor shaft connected to the rotor augers, the rotor shaft rotating from rotation by the rotor augers;
a plurality of rotatable rotor fingers, each rotor finger secured to the rotor shaft for rotation with the rotor shaft, the plurality of rotatable rotor fingers spaced apart along a length of the rotor shaft; and
a plurality of rotor strippers, each rotor stripper sized and shaped to securely fit between adjacent rotor fingers and to securely engage the rotary shaft, each rotor stripper comprising a segment comprised of two opposing side walls with an interior section extending between the two opposing side walls, each segment comprising a first end portion comprising a curved hook section shaped to securely fit around a majority portion of a circumference of the rotary shaft for secure engagement therewith; a second end portion configured to be secured to a backbone portion of the rotor allowing the segment to remain fixed with respect to rotation of the rotary shaft; and a middle portion extending between the first and second end portions in a curved manner; and
wherein the stripper segments extends forwardly from the backbone above and then forward of the shaft and ends at a tip of the hook rearward of the axis of rotation of the rotor creating an opening between the tip and the second end portion.

11. The rotor of claim 10 , wherein the plurality of rotor fingers convey the crop material from the pickup assembly and the plurality of rotor strippers strip the crop material from the plurality of rotor fingers for conveyance to the bale chamber rearward from near the first end portion to beyond the second end portion of each of the segments.

12. The rotor of claim 10 , wherein a first rotor stripper is adjacent a first rotor finger and a last rotor stripper is adjacent a last rotor finger, wherein remaining rotor strippers of the plurality of rotor strippers are fitted between adjacent rotor fingers.

13. The rotor of claim 10 , wherein the interior section extending between the two opposing side walls of each segment comprises a top concave portion.

14. The rotor of claim 13 , wherein each of the two opposing side walls of each segment comprises a rimmed portion adjacent the top concave portion.

15. The rotor of claim 10 , wherein the curved hook section of each segment extends around the circumference of the rotary shaft by about 270°.

16. The rotor of claim 10 , wherein each segment of each rotor stripper further comprises a mounting boss extending through the segment at the second end portion to secure the respective segment to the backbone portion of the rotor.

17. The rotor of claim 10 , wherein the interior section of one or more segments is partially hollow.

18. The rotor of claim 10 , wherein one or more segments is comprised of one solid piece.

19. The rotor of claim 10 , wherein one or more segments is comprised of two longitudinally half segments, the two longitudinally half segments configured to be joined together lengthwise to form the respective one or more segments.

20. The rotor of claim 10 , wherein the rotor is installed on a baler to operate in conjunction with the pick-up assembly to convey crop material to form a bale.

Assignees

• Cnh America Llc
• Cnh Ind America Llc

Inventors

• Mcclure John R
• Hotaling William Dale
• Singh Chandrashekhar

Classifications

• A01F15/10 Primary

  Feeding devices for the crop material {e.g. precompression devices} · CPC title

• A01F2015/108

  Cutting devices comprising cutter and counter-cutter · CPC title