Seal assembly for track pin joint assembly of undercarriage

US9302722B2 · kind B2 · utility

Assignee

• Caterpillar Inc. · US

Inventors

• Guanghui Liang · Dunlap, US
• Mark S. Diekevers · Nashville, US
• Mark J. Kiesel · Peoria, US
• Darren B. Antoine · East Peoria, US
• Temitope Olayemi Akinlua · Peoria, US
• Travis King · Diamond Bar, US

Key dates

• Filing date: Jul 31, 2014
• Grant date: Apr 5, 2016
• Expiry date: Oct 3, 2034

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16J15/3208
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A seal assembly can be incorporated into a track pin joint assembly including a pin defining a longitudinal axis, a first member and a second member both coaxial with the pin about the longitudinal axis. The first member is pivotable about the longitudinal axis with respect to the second member and includes a load ring engagement surface defining, at least in part, an axially-extending seal cavity disposed in proximal relationship to the second member. A seal assembly including a seal ring and a load ring is disposed in the seal cavity and sealingly engages the first member and the second member. The load ring includes a main body and a neck having a neck perimeter with a first sealing blade disposed along the neck perimeter and comprising an outwardly-extending projection. The first sealing blade is adapted to sealingly engage one of the seal ring and the first member.