A conveyor chain includes first link, a second link, a connecting link, a first flight, and a second flight. The first link includes a first side portion and a second side portion. The first side portion has apertures and a first drive pin disposed between the apertures. The first drive pin is confi
A conveyor chain includes first link, a second link, a connecting link, a first flight, and a second flight. The first link includes a first side portion and a second side portion. The first side portion has apertures and a first drive pin disposed between the apertures. The first drive pin is configured to be driven by a first sprocket. The second side portion has apertures and a second drive pin disposed between the apertures and extending in a direction opposite the first drive pin. The second drive pin is configured to be driven by a second sprocket. The second link includes a first side portion and a second side portion. The first flight is cast integrally with an end of the first drive pin of the first link, and the second flight is cast integrally with an end of the second drive pin of the first link.
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1. A conveyor chain for a mining machine, the conveyor chain comprising: a first link cast as a unitary piece including, a first side portion having a first aperture, a second aperture, and a first drive pin disposed between the first aperture and the second aperture, the first drive pin configured
1. A conveyor chain for a mining machine, the conveyor chain comprising: a first link cast as a unitary piece including, a first side portion having a first aperture, a second aperture, and a first drive pin disposed between the first aperture and the second aperture, the first drive pin configured to be driven by a first sprocket, anda second side portion having a first aperture, a second aperture, and a second drive pin disposed between the first aperture and the second aperture and extending in a direction opposite the first drive pin, the second drive pin configured to be driven by a second sprocket;a second link cast as a unitary piece including, a first side portion having a first aperture, a second aperture, and a first drive pin disposed between the first aperture and the second aperture, the first drive pin configured to be driven by the first sprocket, anda second side portion having a first aperture, a second aperture, and a second drive pin disposed between the first aperture and the second aperture and extending in a direction opposite the first drive pin, the second drive pin configured to be driven by the second sprocket; anda connecting link coupled between the first link and the second link. 2. The conveyor chain of claim 1, wherein the first link and the second link are cast in austempered ductile iron. 3. The conveyor chain of claim 1, wherein an outer surface of the first link and the second link are hardened by a laser hardening process. 4. The conveyor chain of claim 1, wherein the connecting link includes a first opening positioned proximate the first apertures of the first link and a second opening positioned proximate the first apertures of the second link;a first pin received within the first apertures of the first link and the first opening to couple the first link to the connecting link; anda second pin received within the first apertures of the second link and the second opening to couple the second link to the connecting link. 5. The conveyor chain of claim 4, wherein the first pin and the second pin are each insertable in only one direction. 6. The conveyor chain of claim 1, wherein the first link includes a first bridge integrally formed between the first side portion and the second side portion; andthe second link includes a second bridge integrally formed between the first side portion and the second side portion. 7. The conveyor chain of claim 1, wherein the connecting link is disposed between the first and second side portions of the first link and between the first and second side portions of the second link. 8. The conveyor chain of claim 1, wherein the first drive pin of the first link is disposed between the first side portion of the first link and a flight, the flight is coupled to the first drive pin of the first link with a fastening member. 9. The conveyor of claim 8, wherein the flight is a first flight, the conveyor chain further comprising a second flight, wherein the second drive pin of the first link is disposed between the second side portion of the first link and the second flight, the second flight is coupled to the second drive pin of the first link with a fastening member. 10. A conveyor chain comprising: a first link including, a first side portion having a first aperture, a second aperture, and a first drive pin aligned between the first aperture and the second aperture, the first drive pin configured to be driven by a first sprocket, anda second side portion having a first aperture, a second aperture, and a second drive pin aligned between the first aperture and the second aperture and extending in a direction opposite the first drive pin, the second drive pin configured to be driven by a second sprocket;a second link including, a first side portion having a first aperture, a second aperture, and a first drive pin disposed between the first aperture and the second aperture, the first drive pin configured to be driven by a first sprocket, anda second side portion having a first aperture, a second aperture, and a second drive pin disposed between the first aperture and the second aperture and extending in a direction opposite the first drive pin, the second drive pin configured to be driven by the second sprocket;a connecting link coupled between the first link and the second link;a first flight cast integrally with an end of the first drive pin of the first link; anda second flight cast integrally with an end of the second drive pin of the first link. 11. The conveyor chain of claim 10, wherein the first link and the second link are cast in austempered ductile iron. 12. The conveyor chain of claim 10, wherein an outer surface of the first link and the second link are hardened by a laser hardening process. 13. The conveyor chain of claim 10, wherein the connecting link is disposed between the first and second side portions of the first link and between the first and second side portions of the second link. 14. The conveyer of claim 10, wherein the connecting link includes a first opening aligned with the first apertures of the first link and a second opening aligned with the first apertures of the second link;a first pin received within the first apertures of the first link and extending through the first opening to couple the first link to the connecting link; anda second pin received within the first apertures of the second link and extending through the second opening to couple the second link to the connecting link. 15. The conveyor chain of claim 14, wherein each of the first pin and the second pin is insertable into each aperture in only one direction. 16. The conveyor chain of claim 10, wherein the first portion of the first link includes an inner surface positioned adjacent a chain axis and an outer surface from which the first drive pin protrudes, the first aperture and the second aperture formed on the inner surface and extending partially through the first portion toward the outer surface, the second portion of the first link including an inner surface facing the inner surface of the first portion and an outer surface from which the second drive pin protrudes, the first aperture and the second aperture of the second portion formed on the inner surface and extending partially through the second portion toward the outer surface. 17. The conveyor chain of claim 10, wherein the first side portion and the second side portion of the first link are separable; andthe first side portion and the second side portion of the second link are separable.
Krekeler Claude B. (Cincinnati OH), Ground engaging tread or track comprised of improved articulated crawler pads, for treaded vehicles such as mining machi.
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