Cap and Pin Retention System

摘要

A machine tread including a first and second pair of plates. The plates have corresponding first ends and second ends, and the second ends of the first pair include outer bores. The first ends of the second pair include aligned bushing bores. The first ends of the second pair fit between the second ends of the first pair, aligning the outer and bushing bores. Ends of a bushing including an inner bore engage the bushing bores forming a pin bore through the inner and outer bores. A retention pin fits in the segmented pin bore. A head end abuts an external surface of the first pair of plates and a locking end extends past the pin bore. A retention cap engages the locking end. A dowel pin fits through a dowel pin bore in the retention cap and the locking end to limit movement of the retention pin.

主权项

1. A machine with a continuous tread comprising:
a first pair of plates in spaced relation to one another, the plates having corresponding first ends and second ends, the second ends including coaxially aligned outer pin bores therethrough; a second pair of plates in spaced relation to one another, the plates having corresponding first and second ends, the first ends including coaxially aligned bushing bores therethrough, wherein the second pair of plates is disposed adjacent the first pair of plates such that the first ends of the second pair of plates are disposed between the second ends of the first pair of plates so as to coaxially align the outer pin bores with the bushing bores; a tubular bushing including an inner pin bore between opposite ends of the tubular bushing, the ends being disposed in the bushing bores of the first ends of the second pair of plates so as to form a segmented pin bore through the inner pin bore and the outer pin bores; a retention pin disposed in the segmented pin bore so as to pivotally connect the first and second pair of plates, the retention pin having a head end and a locking end connected by a pin body, the head end being disposed in abutting relation with a first external surface of the first pair of plates, the pin body disposed in the segmented pin bore, and the locking end extending past a second external surface of the first pair of plates opposite the head end; a retention cap having a cap body with a cap bearing surface and an outer surface, the cap body configured to engage the locking end of the retention pin such that the cap bearing surface abuts the second external surface of the first pair of plates, the cap body and the retention pin including a dowel pin bore extending from the outer surface at least partially through the cap body and the retention pin; and a dowel pin disposed within the dowel pin bore at least partially through the retention cap and the retention pin, the dowel pin configured to limit axial movement of the retention pin relative to the segmented pin bore and the retention cap.