Undercarriage clamping master track link

Patent metadata

Field	Value
Publication number	US-10322760-B2
Application number	US-201715473863-A
Country	US
Kind code	B2
Filing date	Mar 30, 2017
Priority date	Mar 30, 2017
Publication date	Jun 18, 2019
Grant date	Jun 18, 2019

Abstract

A clamping master track link comprises a body that defines a first bore and a second bore, a first aperture disposed between the first bore and the second bore, a second aperture disposed between the first aperture and the second bore, a first strut with a first gap disposed between the first aperture and the second aperture, a second strut with a second gap disposed between the first aperture and the first bore, and a bridge disposed between the second aperture and the second bore.

First claim

What is claimed is:

1. A clamping master track link comprising:
a body defining a top surface, a bottom surface, a first side surface and a second side surface defining a thickness therebetween, a proximate end and a distal end; wherein
the body defines a first bore adjacent the distal end and a second bore adjacent to the proximate end;
the body defines a first aperture disposed between the first bore and the second bore, the first aperture being disposed nearer the first bore than the second bore;
the body defines a second aperture disposed between the first aperture and the second bore;
the body includes a first strut disposed between the first aperture and the second aperture, the body defining a first gap dividing the first strut into a first upper portion and a first lower portion;
the body includes a second strut disposed between the first aperture and the first bore, the body defining a second gap dividing the second strut into a second upper portion and a second lower portion; and
the body includes a bridge disposed between the second aperture and the second bore, wherein the first bore defines a first diameter, the second bore defines a second diameter, the first diameter is less than the second diameter, the first bore is a blind bore and the second bore is a thru bore.

2. The clamping master track link of claim 1 wherein the first bore defines a first longitudinal axis and the second bore defines a second longitudinal axis and the body jogs, forming an offset master track link such that the first bore and second bore are offset from each other along either the first or second longitudinal axis.

3. The clamping master track link of claim 2 wherein the body further defines a first cross-hole extending in a direction perpendicular to the first longitudinal axis of the first bore from the top surface to the first aperture and a second cross-hole extending in a direction perpendicular to the second longitudinal axis of the second bore from the top surface to the second aperture, wherein the first cross-hole defines a first diameter and the second cross-hole defines a second diameter, and the first diameter is greater than the second diameter.

4. The clamping master track link of claim 1 wherein the first gap defines a first minimum distance and the second gap defines a second minimum distance and the ratio of the second minimum distance to the first minimum distance ranges from 3 to 10.

5. The clamping master track link of claim 4 wherein the ratio of the second minimum distance to the first minimum distance ranges from 6 to 7.

6. The clamping master track link of claim 4 wherein the body defines a height from the top surface to the bottom surface, and a ratio of the height to the first minimum distance ranges from 100 to 150.

7. The clamping master track link of claim 6 wherein the ratio of the height to the first minimum distance ranges from 130 to 140.

8. A clamping master track link comprising:
a body defining a top surface, a bottom surface, a first side surface and a second side surface defining a thickness therebetween, a proximate end and a distal end; wherein
the body defines a first bore adjacent the distal end and a second bore adjacent to the proximate end;
the body defines a first aperture disposed between the first bore and the second bore, the first aperture being disposed nearer the first bore than the second bore;
the body defines a second aperture disposed between the first aperture and the second bore;
the body includes a first strut disposed between the first aperture and the second aperture, the body defining a first gap dividing the first strut into a first upper portion and a first lower portion;
the body includes a second strut disposed between the first aperture and the first bore, the body defining a second gap dividing the second strut into a second upper portion and a second lower portion; and
the first gap defines a first minimum distance and the second gap defines a second minimum distance and the ratio of the second minimum distance to the first minimum distance ranges from 3 to 10, wherein the body includes a bridge disposed between the second aperture and the second bore, wherein the first bore defines a first longitudinal axis and the second bore defines a second longitudinal axis and the body jogs, forming an offset master track link such that the first bore and second bore are offset from each other along either the first or second longitudinal axis, and wherein the body further defines a first cross-hole extending in a direction perpendicular to the first longitudinal axis of the first bore from the top surface to the first aperture and a second cross-hole extending in a direction perpendicular to the second longitudinal axis of the second bore from the top surface to the second aperture, wherein the first cross-hole defines a first diameter and the second cross-hole defines a second diameter, and the first diameter is greater than the second diameter.

9. The clamping master track link of claim 8 wherein the ratio of the second minimum distance to the first minimum distance ranges from 6 to 7.

10. The clamping master track link of claim 8 wherein the body defines a height from the top surface to the bottom surface, and a ratio of the height to the first minimum distance ranges from 100 to 150.

11. The clamping master track link of claim 10 wherein the ratio of the height to the first minimum distance ranges from 130 to 140.

12. The clamping master track link of claim 8 wherein the first bore defines a first diameter, the second bore defines a second diameter, the first diameter is less than the second diameter, the first bore is a blind bore and the second bore is a thru bore.

13. A track chain assembly comprising:
a plurality of track pins and track bushings disposed about the track pins; and
a plurality of track links that are connected to each other by either a track pin or a track bushing, wherein at least one track link defines a plurality of apertures for receiving a track pin or bushing;
a plurality of track fasteners;
a plurality of track shoes attached to the track links via the track fasteners; and
at least one clamping master track link including
a body defining a top surface, a bottom surface, a first side surface and a second side surface defining a thickness therebetween, a proximate end and a distal end; wherein
the body defines a first bore adjacent the distal end and a second bore adjacent to the proximate end;
the body defines a first aperture disposed between the first bore and the second bore, the first aperture being disposed nearer the first bore than the second bore;
the body defines a second aperture disposed between the first aperture and the second bore;
the body includes a first strut disposed between the first aperture and the second aperture, the body defining a first gap dividing the first strut into a first upper portion and a first lower portion;
the body includes a second strut disposed between the first aperture and the first bore, the body defining a second gap dividing the second strut into a second upper portion and a second lower portion;
the first bore defines a first longitudinal axis and the second bore defines a second longitudinal axis and the body jogs, forming an offset master track link such that the first bore and second bore are offset from each other along either the first or second longitudinal axis;
the first bore defines a first diameter, the second bore defines a second diameter, the first diameter is less than the second diameter, the first bore is a blind bore and the second bore is a thru bore;
and the body includes a bridge d

Assignees

• Caterpillar Inc

Inventors

• Trone Matthew William
• Recker Roger L
• Johannsen Eric James

Classifications

• B62D55/06

  with tracks without ground wheels · CPC title

• B62D55/213 Primary

  Master track links · CPC title

• B62D55/21

  Links connected by transverse pivot pins · CPC title

• B62D55/28

  detachable · CPC title