Boltless Track Shoe

Patent metadata

Field	Value
Publication number	US-2016297487-A1
Application number	US-201514685284-A
Country	US
Kind code	A1
Filing date	Apr 13, 2015
Priority date	Apr 13, 2015
Publication date	Oct 13, 2016
Grant date	—

Abstract

A method for connecting a track shoe to a link is disclosed. The method may include joining the track shoe and the link using friction welding. A method for constructing a track assembly is also disclosed. The method may include utilizing friction welding to attach a plurality of links to a plurality of track shoes. A track assembly is also disclosed. The track assembly may include a link and a track shoe attached to the link via friction welding.

First claim

What is claimed is:

1 . A method for connecting a track shoe to a link, the method comprising:
joining the track shoe and the link using friction welding.

2 . The method of claim 1 , further comprising creating frictional heat between a faying surface of the track shoe and a faying surface of the link.

3 . The method of claim 2 , further comprising securing the link in a stationary position.

4 . The method of claim 3 , further comprising oscillating the track shoe against the link.

5 . The method of claim 4 , further comprising using at least one of linear friction welding or orbital friction welding to join the track shoe and the link.

6 . The method of claim 5 , further comprising sliding the track shoe back and forth against the link approximately 1 mm to 2.5 mm in each direction.

7 . The method of claim 6 , further comprising oscillating the track shoe between an inclusive range of 10 Hz and 100 Hz.

8 . The method of claim 4 , further comprising applying a force to fuse the track shoe to the link.

9 . The method of claim 8 , further comprising generating an axial load between an inclusive range of 20 tons and 120 tons on the track shoe and link.

10 . The method of claim 8 , further comprising using a hydraulically actuated press to oscillate the track shoe and apply the force to fuse the track shoe to the link.

11 . The method of claim 8 , further comprising laser cutting an excess flash around a perimeter of a weld of the track shoe and the link.

12 . The method of claim 2 , further comprising securing the track shoe in a stationary position.

13 . The method of claim 12 , further comprising oscillating the link against the track shoe.

14 . A method for constructing a track assembly, the method comprising:
utilizing friction welding to attach a plurality of links to a plurality of track shoes.

15 . The method of claim 14 , wherein the step of utilizing friction welding to attach the plurality of links to the plurality of track shoes further comprises utilizing at least one of linear friction welding or orbital friction welding to attach the plurality of links to the plurality of track shoes.

16 . The method of claim 14 , further comprising friction welding at least two links to a track shoe at a same time.

17 . The method of claim 16 , further comprising securing the at least two links in a stationary position.

18 . The method of claim 17 , further comprising oscillating the track shoe against the at least two links at a same time.

19 . The method of claim 18 , further comprising applying a force to fuse the track shoe to the at least two links at a same time.

20 . A track assembly, comprising:
a link; and a track shoe attached to the link via friction welding.

Assignees

• Caterpillar Inc

Inventors

• Thorson Tim
• Kaufmann Greg J
• Diekevers Mark S
• Kaminski David G
• Hakes David

Classifications

• B62D55/32 Primary

  Assembly, disassembly, repair or servicing of endless-track systems · CPC title

• B62D55/26

  Ground engaging parts or elements {(tracks specially adapted for amphibious vehicles B60F3/0015)} · CPC title

• B62D55/20

  of articulated type, e.g. chains {(with lubrication means B62D55/092)} · CPC title

• B62D55/205

  Connections between track links · CPC title