Rigid standard bearing shield disk scraper system

• US 7,631,701 B2
• Filed: 04/30/2007
• Issued: 12/15/2009
• Est. Priority Date: 04/30/2007
• Status: Expired due to Fees

• Current Assignee: CHN America LLC, Blue Leaf IP Incorporated (CNH Industrial N.V.)
• Original Assignee: CNH America Llc (CNH Industrial N.V.)
• Inventors: Kromminga, Gaylen J., Hoffman, Mark P., Faust, Scott, Gerber, Rickey, Beyer, Aaron
• Primary Examiner(s): Will; Thomas B
• Assistant Examiner(s): MCGOWAN, JAMIE LOUISE
• Application Number:
  US11/742,260
• Publication Number:
  US 20080264657A1
• Time in Patent Office: 960 Days
• Field of Search: 172/558, 172/556, 172/508, 172/509, 172/512, 172/513, 172/517, 172/516, 172/112, 172/519, 280/855, 384/624, 384/116
• US Class Current: 172/508
• CPC Class Codes: A01B 23/06 Discs A01B15/16 takes precedence; bearings therefor A01B71/04; Scrapers for cleaning discs; Sharpening attachments; Lubrication of bearingssharpening in general B24

Abstract

A bearing shield and disk scraper system to remove and deflect dirt, debris, and soil from a bearing assembly, rigid bearing hanger or standard, and/or disk blade, is provided; the system also provides a protective barrier structure for the bearing assembly. The bearing shield and disk scraper system includes a shield member and a scraper blade connected thereto. The bearing shield at least partially encases and protects a bearing assembly that rotatably supports a common axle which carries multiple disk blades of the disk gang. The scraper blade is attached to the shield member by way of a mounting flange that extends therefrom. An edge of the scraper blade is positioned in close proximity to a concave surface of an adjacent disk blade, whereby the entire assemblage of bearing shield and disk scraper system protects the bearing assembly and prevents non-desired accumulation of dirt and debris on the disk blade.

Claims

1. A bearing shield and disk scraper system for use with a rigid standard of a disk harrow having a disk blade carrying axle that is rotatably supported by a bearing assembly, comprising:

a bearing shield including a bottom wall and a sidewall, the sidewall of the bearing shield being attached to the bearing assembly such that the bearing shield member covers at least a portion of the bearing assembly;

a mounting flange connected to and extending rearwardly from the bearing shield member; and

a scraper blade removably attached to the mounting flange and interfacing a surface of a disk blade;

wherein the shield member has a back wall that extends between and connects the sidewall and the bottom wall;

wherein the mounting flange is attached to the back wall.

2. The bearing shield and disk scraper system as in claim 1, wherein the scraper blade is adjustably attached to the mounting flange.

3. The bearing shield and disk scraper system as in claim 2, wherein the mounting flange includes elongate slots for adjusting the position of the scraper blade with respect to the mounting flange.

4. The bearing shield and disk scraper system as in claim 1 further comprising an axle spool concentrically mounted to the axle and having a profile shape, and wherein the bottom wall has a curved edge which corresponds in shape to the profile shape of the axle spool.

5. The bearing shield and disk scraper system as in claim 1, wherein the disk blade has a concave surface, defining a radius thereof, and the bottom wall has a curved edge which corresponds in shape to the radius of the concave surface the disk blade.

6. The bearing shield and disk scraper system as in claim 1, wherein the scraper blade is mounted to the lower surface of the mounting flange.

7. A bearing shield and disk scraper system for use with a rigid standard of a disk harrow having a disk blade carrying axle that is rotatably supported by a bearing assembly, comprising:

a bearing shield member including a bottom wall, a sidewall, and a back wall which extends between and connects the bottom wall and sidewall, the bottom wall, sidewall, and back wall, defining a shield cavity therebetween;

a mounting flange angularly extending from the bearing shield member; and

a scraper blade removably attached to the mounting flange and interfacing a surface of a disk blade, wherein the bearing shield is mounted to the bearing assembly such that a portion of the bearing assembly is housed within the bearing shield cavity;

wherein the bottom wall has a notch extending into a perimeter edge.

8. The bearing shield and disk scraper system as in claim 7, wherein the bearing assembly extends downwardly through the notch of the bottom wall.

9. The bearing shield and disk scraper system as in claim 7, wherein the bottom wall has a curved edge which corresponds in shape to a profile shape of an axle spool which is concentrically mounted to the axle.

10. The bearing shield and disk scraper system as in claim 7, wherein the disk blade has a concave surface, defining a radius thereof, and the bottom wall has a curved edge which corresponds in shape to the radius of the concave surface the disk blade.

11. The bearing shield and disk scraper system as in claim 7, wherein the scraper blade is attached to the bottom surface of the mounting flange.

12. The bearing shield and disk scraper system as in claim 7, the position of the scraper blade is adjustable with respect to the mounting flange.

13. A bearing shield and disk scraper system for use with a rigid standard of a disk harrow having a disk blade carrying axle that is rotatably supported by a bearing assembly, comprising:

a bearing shield member mounted to the bearing assembly and including a bottom wall and a sidewall, the bottom wall having a perimeter edge and a depression extending into the perimeter edge;

a mounting flange angularly extending from the bearing shield member; and

a scraper blade removably attached to the mounting flange and interfacing a surface of a disk blade, wherein a portion of the bearing assembly extends through depression in the bottom wall of the bearing shield member.

14. The bearing shield and disk scraper system as in claim 13 further comprising an axle spool concentrically mounted to the axle and having a profile shape, wherein a portion of the bottom wall extends between the disk blade and the axle spool.

15. The bearing shield and disk scraper system as in claim 14, wherein the bottom wall has a curved edge which corresponds in shape to the profile shape of the axle spool.

16. The bearing shield and disk scraper system as in claim 14, wherein the disk blade has a concave surface, defining a radius thereof, and the bottom wall has a curved edge which corresponds in shape to the radius of the concave surface the disk blade.

17. The bearing shield and disk scraper system as in claim 13, wherein a lowest portion of the scraper blade extends downwardly beyond an upper surface of the axle.