Ground-engaging tool with wear-resistant insert
AssigneeCaterpillar Tractor Co.
InventorsLowell J. Moen, Eugene L. Helton, Chris R. Straesser
Life of this patent
Estimating the term…
Abstract
A ground-engaging tool is disclosed which includes a blade with a load carrying front face, a ground-engaging bottom surface, and a rear face, and a wear-resistant insert is secured thereto to extend the service life thereof. The wear-resistant insert includes a back-up plate which is disposed in rearwardly spaced relation from the rear face of the blade and adjacent its bottom surface, a wear-resistant material which is bondably sandwiched between the plate and the rear face, and a plurality of bridging members which extend through the wear-resistant material and are rigidly secured to the plate and the rear face of the blade to minimize in use spalling of the wear-resistant material.
Claims8
A ground-engaging tool comprising:
- a blade including a load carrying front face, a ground-engaging bottom surface, and a rear face;
- and
- wear-resistant means for extending the wear life of the tool including a back-up plate disposed in rearwardly spaced relation from said rear face and adjacent said bottom surface, a wear-resistant material bondably sandwiched between said plate and said rear face, and a plurality of substantially parallel ribs which extend through said wear-resistant material and are rigidly secured to said plate and said rear face of said blade, said ribs being oriented in vertical planes parallel to a normal direction of linear travel of the tool, to minimize in use spalling of said wear-resistant material.
A ground-engaging tool comprising:
- a blade elongated transversely to a normal direction of linear travel of the tool and including a forwardly depending cutting edge portion and a rear face protectingly disposed behind it;
- and
- a wear-resistant member secured to said rear face including a back-up plate, a composite wear-resistant material consisting essentially of a plurality of abrasive-resistant particles embedded in a carrying matrix bondably secured spannably to said plate and said rear face, and a plurality of substantially parallel ribs oriented in vertical planes parallel to said normal direction of linear travel of the tool which bridgingly extend through said wear-resistant material and are secured to said plate and said wear-resistant material to minimize in use spalling of said wear-resistant material.
A wear-resistant insert for a ground-engaging tool comprising:
- a back-up plate of low carbon steel with a plurality of projecting members of low carbon steel extending generally normally therefrom;
- and
- a composite material including a plurality of abrasive-resistant particles of low carbon ferrous-based alloy material in a carrying matrix of low carbon ferrous-based alloy material different than said material of the particles and being bonded to said back-up plate and to said projecting members and covering said back-up plate between said projecting members to a depth of the projecting members, wherein said back-up plate, said projecting members, said abrasive resistant particles and said matrix are each of a material having less than 0.2% carbon by weight.
Dependencies are inferred from the claim text.