Idler weight for drive track assembly

Patent metadata

Field	Value
Publication number	US-11643155-B2
Application number	US-202016739215-A
Country	US
Kind code	B2
Filing date	Jan 10, 2020
Priority date	Jan 10, 2020
Publication date	May 9, 2023
Grant date	May 9, 2023

Abstract

A work machine may include an drive frame, a drivable track coupled to the drive frame, an idler wheel coupled to the drive frame to facilitate movement of the drivable track, and a wheel weight coupleable to the idler wheel. The wheel weight may be coupled to the idler wheel without removing the idler wheel from the drive frame.

First claim

What is claimed is:

1. A work machine comprising:
a drive frame;
a drivable track coupled to the drive frame;
an idler wheel coupled to the drive frame; and
a wheel weight removably coupled to the idler wheel;
wherein the wheel weight includes a central axis and a plurality of wedges arranged about the central axis; and
wherein each wedge of the plurality of wedges includes a radially outer end and a radially inner end that is narrower than the radially outer end and arranged between the central axis and the radially outer end.

2. The work machine of claim 1 , wherein the work machine further comprises:
a first plurality of fasteners that couples the idler wheel to the drive frame; and
a second plurality of fasteners configured to removably couple the wheel weight to the idler wheel.

3. The work machine of claim 2 , wherein each fastener of the first plurality of fasteners is spaced apart from the wheel weight when the wheel weight is coupled to the idler wheel.

4. The work machine of claim 3 , wherein the second plurality of fasteners cooperates with the first plurality of fasteners to couple the idler wheel to the drive frame when the wheel weight is coupled to the idler wheel.

5. The work machine of claim 4 , wherein:
each fastener included in the first plurality of fasteners has a first length; and
each fastener included in the second plurality of fasteners has a second length greater than the first length.

6. The work machine of claim 2 , wherein, when the wheel weight is coupled to the idler wheel, the first plurality of fasteners and the second plurality of fasteners are arranged to form a circle that is concentric with the idler wheel.

7. The work machine of claim 2 , wherein:
each of the plurality of wedges includes an aperture defined in the radially inner end thereof, and each aperture is sized and shaped to receive a fastener of the second plurality of fasteners.

8. The work machine of claim 1 , wherein the wheel weight includes a plurality of slots, and each slot of the plurality of slots is defined between a pair of wedges included in the plurality of wedges.

9. The work machine of claim 8 , wherein each slot is sized to receive a fastener of the first plurality of fasteners when the wheel weight is coupled to the idler wheel.

10. A work machine comprising:
a drive frame;
a drivable track coupled to the drive frame;
an idler wheel coupled to the drive frame;
an idler wheel hub coupled to: (i) the drive frame via a drive shaft, and (ii) to the idler wheel via a first plurality of fasteners; and
a wheel weight removably coupled to the idler wheel via a second plurality of fasteners;
wherein the idler wheel includes an outer surface having a sloped contour; and
wherein the wheel weight includes an outer surface, an inner surface opposite the outer surface, and a side wall extending between the inner surface and the outer surface at an angle that approximates the sloped contour of the outer surface of the idler wheel.

11. The work machine of claim 10 , wherein:
the second plurality of fasteners cooperates with the first plurality of fasteners to couple the idler wheel to the idler wheel hub when the wheel weight is coupled to the idler wheel; and
the first plurality of fasteners does not cooperate with the second plurality of fasteners to couple the wheel weight to the idler wheel.

12. The work machine of claim 10 , wherein:
the wheel weight includes an opening extending through the inner surface and the outer surface of the wheel weight, and the idler wheel hub extends through the opening.

13. The work machine of claim 12 , wherein the wheel weight includes:
a plurality of wedges, wherein each wedge of the plurality of wedges narrows to an inner end that defines a boundary of the opening, and
a plurality of slots, wherein each slot of the plurality of slots is defined by side walls of the wedges and opens into the opening of the wheel weight.

14. The work machine of claim 10 , wherein each fastener of the first plurality of fasteners is spaced apart from the wheel weight when the wheel weight is coupled to the idler wheel.

15. The work machine of claim 10 , wherein:
each fastener included in the first plurality of fasteners has a first length; and
each fastener included in the second plurality of fasteners has a second length greater than the first length.

16. The work machine of claim 10 , wherein, when the wheel weight is coupled to the idler wheel, the first plurality of fasteners and the second plurality of fasteners are arranged to form a circle that is concentric with the idler wheel.

17. A method of adjusting weight distribution for a work machine including an idler wheel secured to a drive frame, the method comprising:
providing a wheel weight configured to be coupled to the idler wheel, the wheel weight having a plurality of slots and a plurality of apertures formed therein;
aligning the plurality slots of the wheel weight with a first plurality of fasteners which are securing the idler wheel to the drive frame;
aligning a second plurality of fasteners with the plurality of apertures formed in the wheel weight and with a plurality of apertures formed in the idler wheel; and
inserting the second plurality of fasteners into the plurality of apertures formed in the wheel weight and into the plurality of apertures formed in the idler wheel to fasten the wheel weight to the idler wheel.

18. The method of claim 17 , further comprising:
subsequent to the first aligning step of claim 17 , removing a third plurality of fasteners from the plurality of apertures formed in the idler wheel.

19. The method of claim 17 , wherein the work machine further includes an idler wheel hub coupled to the idler wheel and the drive frame, and the method further comprises:
aligning the second plurality of fasteners with a plurality of apertures formed in the idler wheel hub; and
inserting the second plurality of fasteners into the plurality of apertures formed in the idler wheel hub to further secure the idler wheel to the drive frame and to simultaneously fasten the wheel weight to the idler wheel.

Assignees

• Deere & Co

Inventors

• Bhosale Digvijay A
• Mahadik Samir
• Heimbuch Benjamin J

Classifications

• B62D55/145

  Rollers with replaceable wear rings or rims (driving sprockets with replaceable rims B62D55/12) · CPC title

• B62D55/06

  with tracks without ground wheels · CPC title

• B62D55/10

  Bogies; Frames (track-tensioning means B62D55/30) · CPC title

• B62D55/065

  Multi-track vehicles, i.e. more than two tracks {(soil-shifting machines E02F; mining machines E21C)} · CPC title

• B62D55/14

  Arrangement, location, or adaptation of rollers · CPC title