[특허]Cap and pin retention system

Caterpillar Inc.

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Cap and pin retention system

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B21L-009/06 B62D-055/21
출원번호	US-0276893 (2014-05-13)
등록번호	US-9216783 (2015-12-22)
발명자 / 주소	Johannsen, Eric J.
출원인 / 주소	Caterpillar Inc.
인용정보	피인용 횟수 : 0 인용 특허 : 18

초록
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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 ...

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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; anda 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. 2. The machine of claim 1, wherein the cap body includes a retention pin bore extending from the cap bearing surface at least partially through the cap body, the locking end of the retention pin being disposed within the retention pin bore. 3. The machine of claim 2, wherein the dowel pin bore is substantially perpendicular to the retention pin bore between the outer surface of the cap body and the retention pin bore. 4. The machine of claim 1, wherein the dowel pin is disposed in the dowel pin bore by an interference fit. 5. The machine of claim 1, wherein the outer surface of the cap body has a first side and a second side, the dowel pin bore extending through the cap body from the first side to the second side. 6. The machine of claim 1, wherein the cap body is disposed within an external cutout in the second external surface of the first pair of plates. 7. The machine of claim 6, wherein the external cutout is between two surface protrusions and the cap body has a top surface opposite the cap bearing surface, the top surface being substantially coplanar with the two surface protrusions. 8. The machine of claim 1, wherein the pin body of the retention pin has a smooth cylindrical surface. 9. The machine of claim 1, wherein the head end of the retention pin further comprises a flange extending radially away from the retention pin, the flange having a flange bearing surface in abutting relation with the first external surface of the first pair of plates. 10. The machine of claim 1, wherein the tubular bushing has a smooth cylindrical interior surface. 11. A retention system for joining adjacent links in a continuous tread comprising a plurality of links pivotally connected to one another, each of the plurality of links having a pair of plates with first ends and second ends, the first ends being connected by a tubular bushing and the second ends forming a cutout into which the first ends and the tubular bushing of an adjacent link are disposed, the retention system comprising: a retention pin having a head end and a locking end connected by a pin body, the head end disposed in abutting relation with a first external surface of a first link, the pin body disposed in a segmented pin bore formed through the second ends of the first link and the tubular bushing of a second link, and the locking end extending past a second external surface of the first link opposite the head end, wherein outer pin bores of the segmented pin bore are in aligned relation through the second ends of the first link and an inner pin bore of the segmented pin bore extends through the tubular bushing of the second link in aligned relation with the outer pin bores of the segmented pin bore;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 link, 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; anda 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. 12. The retention system of claim 11, wherein each end of the tubular bushing is disposed in a bushing bore of each of the first ends of the second link. 13. The retention system of claim 12, wherein the dowel pin bore is substantially perpendicular to the retention pin bore between the outer surface of the cap body and the retention pin bore. 14. The retention system of claim 11, wherein the cap body includes a retention pin bore extending from the cap bearing surface at least partially through the cap body, the locking end of the retention pin being disposed within the retention pin bore. 15. The retention system of claim 11 wherein the dowel pin is disposed in the dowel pin bore by an interference fit. 16. The retention system of claim 11, wherein the outer surface of the cap body has a first side and a second side, the dowel pin bore extending through the cap body from the first side to the second side. 17. The retention system of claim 11, wherein the cap body is disposed within an external cutout in the second external surface of the first link. 18. The retention system of claim 17, wherein the external cutout is between two surface protrusions and the cap body has a top surface opposite the cap bearing surface, the top surface being substantially coplanar with the two surface protrusions. 19. The retention system of claim 1, wherein the head end of the retention pin further comprises a flange extending radially away from the retention pin, the flange having a flange bearing surface in abutting relation with the first external surface of the first link. 20. A continuous tread for a machine, the 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 having a flange extending radially away from the retention pin and having a flange bearing surface 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 including a retention pin bore extending from the cap bearing surface partially through the cap body, the retention bore configured to receive 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 between opposite first and second sides of the outer surface of the cap body and through the retention pin; anda dowel pin disposed within the dowel pin bore through the retention cap and the retention pin by an interference fit, the dowel pin configured to limit axial movement of the retention pin relative to the segmented pin bore and the retention cap.

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Cap and pin retention system

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Cap and pin retention system

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