[특허]Track roller assembly and machine using same

Caterpillar Inc

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Track roller assembly and machine using same

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60B-009/00 B60B-019/00
미국특허분류(USC)	305/136; 305/119
출원번호	UP-0255875 (2008-10-22)
등록번호	US-7832815 (2011-01-16)
발명자 / 주소	VanderVeen, Jeffrey S.
출원인 / 주소	Caterpillar Inc
대리인 / 주소	Trousdale, Jonathan V.
인용정보	피인용 횟수 : 10 인용 특허 : 9

초록

A track roller assembly for a track-type machine such as an excavator or a tractor includes an outer surface with no fluid ports and an inner surface free from any fluids. The track roller includes a shaft resting on self-lubricated bushings, which include a substrate that has lubricating properties, such as a substrate that carries a solid lubricant. The track roller assembly also includes a collar and a retention plate on both sides of the shaft.

대표
청구항
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What is claimed is: 1. A track roller assembly comprising: a first collar having a first inner wall surface and a first lip; a second collar having a second inner wall surface and a second lip; a shaft having a first end, a second end, and an axis, the first end being disposed within the first collar and the second end being disposed within the second collar; a first retention plate being fixed with respect to the shaft; and a second retention plate being fixed with respect to the shaft; wherein the first lip is restrained from axial movement along the axis by the first retention plate; the second lip is restrained from axial movement along the axis by the second retention plate; and the shaft, the first retention plate, and the second retention plate are rotatable relative to the first collar and the second collar. 2. The track roller assembly of claim 1, further comprising: a first self-lubricated bushing having a first inner bearing surface and a first outer surface, the first outer surface being in contact with the first inner wall surface, and the first inner bearing surface being in contact with the first end; and a second self-lubricated bushing having a second inner bearing surface and a second outer surface, the second outer surface being in contact with the second inner wall surface, and the second inner bearing surface being in contact with the second end. 3. The track roller assembly of claim 1, wherein the first retention plate and the second retention plate are bolted to the shaft. 4. The track roller assembly of claim 2, wherein the first and second self-lubricated bushings include a substrate carrying a solid lubricant. 5. The track roller assembly of claim 4, wherein the track roller assembly includes a portless outer surface and a fluidless inner volume. 6. The track roller assembly of claim 1, further comprising: a first mount having a first upper portion and a first lower portion, wherein the first collar is disposed between the first upper portion and the first lower portion; a second mount having a second upper portion and a second lower portion, wherein the second collar is disposed between the second upper portion and the second lower portion. 7. The track roller assembly of claim 6, wherein the first mount restrains the first collar from axial movement along the axis and rotation about the axis; and the second mount restrains the second collar from axial movement along the axis and rotation about the axis. 8. The track roller assembly of claim 6, further comprising: a track frame; wherein the first mount and the second mount are coupled to the track frame. 9. The track roller assembly of claim 6, further comprising: a track frame having a first track bar and a second track bar; wherein the first mount is coupled to the first track bar and the second mount is coupled to the second track bar; and wherein the first track bar proximate to the first mount and the second track bar proximate to the second mount are maintained at a substantially constant distance by the combination of the shaft, the first mount, the second mount, the first retention plate, and the second retention plate. 10. The track roller assembly of claim 2, further comprising: a first thrust washer between the first end of the shaft and the first collar; and a second thrust washer between the second end of the shaft and the second collar. 11. A track type machine comprising: a track roller frame having a first bar and a second bar separated by a roller receiving gap; a plurality of track roller assemblies, each of the plurality of track roller assemblies including: a first collar having a first inner wall surface and a first lip; a second collar having a second inner wall surface and a second lip; a shaft having a first end, a second end, and an axis, the first end being disposed within the first collar and the second end being disposed within the second collar; and a first retention plate being fixed with respect to the shaft; and a second retention plate being fixed with respect to the shaft; wherein the first lip is restrained from axial movement along the axis by the first retention plate; the second lip is restrained from axial movement along the axis by the second retention plate; and the shaft, the first retention plate, and the second retention plate are rotatable relative to the first collar and the second collar. 12. The track type machine of claim 11, wherein the first retention plate and the second retention plate are bolted to the shaft. 13. The track type machine of claim 11, wherein each of the plurality of track roller assemblies further comprises: a first self-lubricated bushing having a first inner bearing surface and a first outer surface, the first outer surface in contact with the first inner wall surface of the first collar; and a second self-lubricated bushing having a second inner bearing surface and a second outer surface, the second outer surface in contact with the second inner wall surface of the second collar. 14. The track type machine of claim 13, wherein each of the plurality of track roller assemblies further comprises: a first thrust washer between the first end of the shaft and the first collar; and a second thrust washer between the second end of the shaft and the second collar. 15. A method of assembling a track roller assembly, comprising the steps of: (i) press fitting a first bushing to a first cylindrical bore of a first collar, the first collar having a first lip; (ii) press fitting a second bushing to a second cylindrical bore of a second collar, the second collar having a second lip; (iii) inserting a first end of a shaft into the first cylindrical bore of the first collar to contact a first inner bearing surface of the first bushing, the shaft having an axis; (iv) inserting a second end of the shaft into the second cylindrical bore of the second collar to contact a second inner bearing surface of the second bushing; (v) sliding a first retention plate over the first collar until the first retention plate is in contact with the shaft; (vi) sliding a second retention plate over the second collar until the second retention plate is in contact with the shaft; (vii) attaching the first retention plate to the shaft; and (viii) attaching the second retention plate to the shaft. 16. The method of claim 15, wherein the first bushing and the second bushing are self-lubricating. 17. The method of claim 15, wherein the step of attaching the first retention plate to the shaft includes the step of restraining the first collar from axial movement along the axis. 18. The method of claim 15, wherein steps (i), (iii), (v), and (vii) are performed in numerical order. 19. The method of claim 15, further including the steps of: (ix) constraining the first collar between a first upper portion and a first lower portion of a first mount; (x) constraining the second collar between a second upper portion and second lower portion of a second mount. 20. The method of claim 19, wherein step (v), (vii) and (ix) are performed in numerical order.

이 특허에 인용된 특허 (9)

이 특허를 인용한 특허 피인용횟수: 10

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구성항목	관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
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특허 상세정보

Track roller assembly and machine using same

초록

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이 특허에 인용된 특허 (9)

이 특허를 인용한 특허 피인용횟수: 10

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특허 상세정보

Track roller assembly and machine using same

초록

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이 특허에 인용된 특허 (9)

이 특허를 인용한 특허 피인용횟수: 10

IPC 상위 출원인

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IPC 상세정보(version : 201201)

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