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US 11,958,551 B2Granted
Single press ring groove for a cartridge pin assembly
AssigneeCaterpillar Inc.
InventorsBenjamin Isaac Jones, Stan Robert Parrott, Allen J. Weeks, George H. Meiner, IV, Scott A. Hudson
Life of this patent
Estimating the term…
Abstract
A swage tool includes a plurality of swage projections that each defines an angular circumferential extent, and the sum of each of these angular circumferential extents is at least 290 degrees.
Claims21
A cartridge pin assembly comprising:
- a pin including a cylindrical surface, a cylindrical axis, a radial direction and a circumferential direction, and an end portion, and an annular frustoconical groove formed on the cylindrical surface adjacent to the end portion that extends 360 degrees along the circumferential direction;
- and
- an end collar that extends circumferentially 360 degrees about the annular frustoconical groove, and axially covers the annular frustoconical groove;
- wherein the end collar is deformed such that a deformed amount of material is continuously swaged into the annular frustoconical groove of the pin, the deformed amount of material of the end collar mechanically locking at least 290 degrees, as measured along the circumferential direction of the pin within the end collar.
1 more element
A track chain assembly including a plurality of swaged joints, each joint comprising:
- a track link including an inboard end collar with a first bore therethrough and an outboard end collar with a pin boss extending outwardly therefrom and a second bore therethrough, the pin boss including an outer side surface;
- and
- a cylindrical pin defining a cylindrical axis, a radial direction, and a circumferential direction, the cylindrical pin including an end portion being pressed and nonrotatably mounted into a respective second bore of the outboard end collar;
- wherein an annular frustoconical groove is formed in the end portion of the cylindrical pin disposed axially and radially adjacent to the pin boss, and the pin boss has at least one continuously-swaged deformation that is disposed in the annular frustoconical groove such that an angular filled undercut portion of the pin boss that extends into the annular frustoconical groove circumferentially at least 290 degrees about the cylindrical axis, locking the cylindrical pin within the track link.
1 more element
A track chain assembly including swaged joints comprising:
- a track link, the track link including an inboard end collar with a first bore and an outboard end collar a second bore, wherein the outboard end collar also includes an outer side surface and a pin boss extending from the outboard end collar to the outer side surface;
- a track pin, the track pin including an end portion with an annular frustoconical groove and the track pin defining a cylindrical direction, a radial direction, and a circumferential direction;
- and
- a track bushing disposed about the track pin,
- wherein the end portion of the track pin is pressed and nonrotatably mounted into the second bore, the annular frustoconical groove is disposed axially and radially adjacent to the pin boss, and the pin boss has a continuously-swaged deformation that is disposed in the annular frustoconical groove such that an angular filled undercut portion of the pin boss extends into the annular frustoconical groove circumferentially at least 290 degrees along the cylindrical direction.
2 more elements
Dependencies are inferred from the claim text.