A track chain assembly for a crawler type work vehicle includes a plurality of links pivotally connected together at respective link joints. Each link joint includes a bushing, a pin, and at least one elastomeric bearing. Each elastomeric bearing includes an inside diameter (ID) engaging the pin and
A track chain assembly for a crawler type work vehicle includes a plurality of links pivotally connected together at respective link joints. Each link joint includes a bushing, a pin, and at least one elastomeric bearing. Each elastomeric bearing includes an inside diameter (ID) engaging the pin and an outside diameter (OD) engaging a link and/or bushing. Each elastomeric bearing includes a plurality of alternating metal layers and elastomer layers.
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1. A track chain assembly for a crawler type work vehicle, comprising: a plurality of links pivotally connected together at respective link joints, each said link joint connecting a first link and a second link, each link joint including a bushing, a pin, and at least one elastomeric bearing, said p
1. A track chain assembly for a crawler type work vehicle, comprising: a plurality of links pivotally connected together at respective link joints, each said link joint connecting a first link and a second link, each link joint including a bushing, a pin, and at least one elastomeric bearing, said pin engaging said second link, each said elastomeric bearing including an inside diameter (ID) engaging said pin and an outside diameter (OD) engaging said first link and radially spaced from said second link, each said elastomeric bearing including a plurality of alternating metal annular layers and elastomer annular layers, each said link joint including said first and said second links at opposite ends of a respective said pin, one of said first and second links is an inner link and the other link is an outer link relative to a longitudinal direction of a corresponding said pin, each said first link and each said second link including a hole which is sized and configured to receive a corresponding said elastomeric bearing therein, each said elastomeric bearing spanning and interconnecting between an adjacent said first link and said second link. 2. The track chain assembly of claim 1, wherein each said elastomeric bearing includes a plurality of alternating steel and elastomer annular layers. 3. The track chain assembly of claim 2, wherein each said elastomeric bearing includes two elastomer annular layers. 4. The track chain assembly of claim 3, wherein each said elastomeric bearing includes three steel annular layers. 5. The track chain assembly of claim 1, wherein said outside diameter of each said elastomeric bearing engages an inside diameter of said hole formed in each said first link. 6. The track chain assembly of claim 1, wherein said hole in said second link receiving the corresponding said elastomeric bearing includes a first diameter portion and a second diameter portion in which said second diameter is larger than said first diameter. 7. The track chain assembly of claim 6, wherein said second diameter portion defines a recess open to said first link extending an axial distance and having an end surface extending radially between said first and second diameters, and wherein the corresponding said elastomeric bearing is partially disposed in said recess to be adjacent to said radial surface and partially disposed in said hole in said first link. 8. The track chain assembly of claim 7, wherein said pin is fixedly engaged to said inner diameter of the corresponding said elastomeric bearing along substantially all of said axial distance of said recess. 9. A crawler type work vehicle, comprising: a chassis; andan undercarriage carried by said chassis, said undercarriage including a track chain having a plurality of links pivotally connected together at respective link joints, each said link join connecting a first link and a second link, each said link joint including a bushing, a pin, and at least one elastomeric bearing, said pin engaging said second link, each said elastomeric bearing including an inside diameter (ID) engaging said pin and an outside diameter (OD) engaging said first link and radially spaced from said second link, each said elastomeric bearing including a plurality of alternating metal annular layers and elastomer annular layers, each said link joint including said first and second links at opposite ends of a respective said pin, one of said first and second links is an inner link and the other link is an outer link relative to a longitudinal direction of a corresponding said pin, each said first link and each said second link including a hole which is sized and configured to receive a corresponding said elastomeric bearing therein, each said elastomeric bearing spanning and interconnecting between an adjacent said link and said link. 10. The crawler type work vehicle of claim 9, wherein each said elastomeric bearing includes a plurality of alternating steel and elastomer annular layers. 11. The crawler type work vehicle of claim 10, wherein each said elastomeric bearing includes two elastomer annular layers. 12. The crawler type work vehicle of claim 11, wherein each said elastomeric bearing includes three steel annular layers. 13. The crawler type work vehicle of claim 9, wherein said outside diameter of each said elastomeric bearing engages an inside diameter of said hole formed in each said first link. 14. The crawler type work vehicle of claim 9, wherein said hole in said second link receiving the corresponding said elastomeric bearing includes a first diameter portion and a second diameter portion in which said second diameter is larger than said first diameter. 15. The crawler type work vehicle of claim 14, wherein said second diameter portion defines a recess opening to said first link extending an axial distance and having an end surface extending radially between said first and second diameters, and wherein the corresponding said elastomeric bearing is partially disposed in said recess to be adjacent to said radial surface and partially disposed in said hole in said first link. 16. The crawler type work vehicle of claim 15, wherein said pin is fixedly engaged to said inner diameter of the corresponding said elastomeric bearing along substantially all of said axial distance of said recess. 17. A track chain assembly for a crawler type work vehicle, comprising a plurality of links pivotally connected together at respective link joints, each said link joint including: a pin extending in a longitudinal direction;a first link and a second link arranged at inner and outer sides with respect to said longitudinal direction of said pin, said first link defining a first inside diameter, and said second link defining a second inside diameter and a third inside diameter that is different from the first and second inside diameters, said second inside diameter defining a recess extending an axial distance along a portion of said second link toward said first link; andat least one elastomeric bearing including a plurality of alternating metal annular layers and elastomer annular layers and being sized and configured to be received in said first inside diameter of said first link and said recess of said second link, each at least one said elastomeric bearing including an inside diameter and an outside diameter;wherein said first diameter of said first link fixedly engages said outside diameter of said at least one elastomeric bearing, and wherein said pin fixedly engages said third inside diameter of said second link and said inside diameter of said at least one elastomeric bearing. 18. The track chain assembly of claim 17, wherein said second link defines an end surface extending radially between said second and third diameters, and wherein each said at least one elastomeric bearing is partially disposed in said recess to be adjacent to said end surface and partially disposed in said first link so that said at least one elastomeric bearing spans and interconnects between said first and second links; wherein said pin is fixedly engaged to said inner diameter of said at least one elastomeric bearing along substantially all of said axial distance of said recess.
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이 특허에 인용된 특허 (15)
Michael D. Hasselbusch ; Roy L. Maguire ; Thomas E. Oertley ; Darby R. Robertson, Cartridge assembly for a track chain of a track type work machine.
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