[특허]Sweeping track shoe for undercarriage system in a track-type machine

Caterpillar Inc.

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특허 상세정보

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Sweeping track shoe for undercarriage system in a track-type machine

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B62D-055/088 B62D-055/28
미국특허분류(USC)	305/107;
출원번호	US-0967608 (2010-12-14)
등록번호	US-8833871 (2014-09-16)
발명자 / 주소	Nebergall, Kenneth Garnett, Stephen Jost, Britta A. Johannsen, Eric J.
출원인 / 주소	Caterpillar Inc.
인용정보	피인용 횟수 : 0 인용 특허 : 10

초록
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A ground engaging track for a track-type machine includes a set of identical standard track shoes each having a relatively narrow shoe footprint, and a sweeping track shoe having a relatively wide shoe footprint. The sweeping track shoe is connectable via track links with the standard track shoes in an endless chain configuration such that the sweeping track shoe juts outwardly of the standard track shoes, for sweeping debris from a clearance between the track and a main frame of the track-type machine. The sweeping track shoe includes bolting apertures formed therein and communicating between an upper shoe surface and a ground contacting shoe surface, the bolting apertures being arranged in a directional link bolting pattern. The directional link bolting pattern defines a minor shoe axis and a major shoe axis, and the sweeping shoe body may be configured such that an inboard sweeping edge is spaced further than an outboard edge from the minor shoe axis.

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1. A sweeping track shoe for an undercarriage system in a track-type machine, where the undercarriage system includes a track roller frame and a ground engaging track having a plurality of standard track shoes defining standard shoe footprints, and the undercarriage system is configured to couple with a main frame of the track-type machine such that a clearance extends between the undercarriage system and the main frame, the sweeping track shoe comprising: a one-piece sweeping shoe body having bolting apertures formed therein and communicating between an upper shoe surface and a ground contacting shoe surface, and an outer perimeter defining a sweeping shoe footprint, the bolting apertures being arranged in a directional link bolting pattern defining a minor shoe axis and a major shoe axis; andthe sweeping shoe body further having an outboard edge with a standard profile, an inboard sweeping edge with an anti-snagging profile, a leading edge and a trailing edge, wherein the outboard edge is positioned at a first distance from the minor shoe axis and the inboard sweeping edge is positioned at a second distance from the minor shoe axis which is greater than the first distance, and wherein the sweeping track shoe is connectable with the standard track shoes in an endless chain configuration such that the sweeping track shoe juts outwardly of the standard track shoes in an inboard direction for sweeping debris from the clearance during actuating the track. 2. The sweeping track shoe of claim 1 wherein the second distance is equal to at least about 105% of the first distance. 3. The sweeping track shoe of claim 2 wherein the second distance is equal to between about 108% and about 113% of the first distance. 4. The sweeping track shoe of claim 2 wherein the sweeping shoe body includes abruptly profiled outboard shoe corners, and gradually profiled inboard shoe corners. 5. The sweeping track shoe of claim 4 wherein the upper shoe surface includes a planate shoe surface, and the leading edge curves upwardly from the planate shoe surface and the trailing edge curves downwardly from the planate shoe surface. 6. The sweeping track shoe of claim 5 further including a grouser extending from the inboard sweeping edge to the outboard edge, and including a portion of the ground contacting shoe surface. 7. The sweeping track shoe of claim 2 wherein a sum of the first distance and the second distance defines a width of the sweeping track shoe and is equal to between about 500 millimeters and about 1000 millimeters, and wherein a length of the sweeping track shoe is equal to between about 200 millimeters and about 300 millimeters. 8. The sweeping track shoe of claim 7 wherein the first distance is equal to between about 330 millimeters and about 460 millimeters, and the second distance is equal to between about 370 millimeters and about 500 millimeters, and wherein the sweeping track shoe includes a shoe thickness between the upper shoe surface and the ground contacting shoe surface which is equal to between about 10 millimeters and about 20 millimeters. 9. A sweeping track shoe for an undercarriage system in a track-type machine, where the undercarriage system includes a track roller frame and a ground engaging track having a plurality of standard track shoes defining standard shoe footprints, and the undercarriage system is configured to couple with a main frame of the track-type machine such that a clearance extends between the undercarriage system and the main frame, the sweeping track shoe comprising: a one-piece sweeping shoe body having an outboard edge, an inboard sweeping edge, a leading edge and a trailing edge, the sweeping shoe body further having bolting apertures formed therein and communicating between an upper shoe surface and a ground contacting shoe surface;the sweeping shoe body further having a grouser which includes a portion of the ground contacting shoe surface and extends from the outboard edge to the inboard sweeping edge, and an outer perimeter defining a sweeping shoe footprint;wherein the bolting apertures are arranged in a directional link bolting pattern defining a minor shoe axis intersecting the leading and trailing edges, and a major shoe axis intersecting the outboard and inboard edges; andwherein the link bolting pattern is symmetric about the minor shoe axis, the outer perimeter is more abruptly profiled on the outboard edge and less abruptly profiled on the inboard sweeping edge such that the sweeping shoe footprint is asymmetric about the minor shoe axis, and the sweeping track shoe is connectable with the standard track shoes in an endless chain configuration such that the sweeping track shoe juts outwardly of the standard track shoes in an inboard direction for sweeping debris from the clearance during actuating the track. 10. The sweeping track shoe of claim 9 wherein the sweeping shoe body includes a length dimension parallel the minor shoe axis and a width dimension parallel the major shoe axis which is greater than the length dimension, and wherein the sweeping shoe footprint is dimensionally asymmetric about the minor shoe axis. 11. The sweeping track shoe of claim 9 wherein a first distance extends from the minor axis to the outboard edge, and a second distance extends from the minor axis to the inboard sweeping edge, and wherein the second distance is equal to at least about 105% of the first distance. 12. The sweeping track shoe of claim 11 wherein the second distance is equal to between about 108% and about 113% of the first distance. 13. The sweeping track shoe of claim 11 wherein the sweeping shoe footprint includes a shape which is asymmetric about the minor shoe axis. 14. The sweeping track shoe of claim 13 wherein the sweeping shoe body includes a standard outboard profile, and an anti-snagging inboard profile. 15. A sweeping track shoe for an undercarriage system in a track-type machine, comprising: a one-piece sweeping shoe body having a planate upper shoe surface, a ground contacting shoe surface, and an outer shoe perimeter defining a sweeping shoe footprint, the sweeping shoe body further having a leading edge curving upwardly from the upper shoe surface, a trailing edge curving downwardly from the upper shoe surface, and a full width grouser including a portion of the ground contacting shoe surface; andthe sweeping shoe body further having an outboard edge and an inboard edge, extending between the leading and trailing edges, the outboard edge defining a standard edge profile; andthe sweeping shoe body further having abruptly profiled corners transitioning between the outboard edge and the leading and trailing edges, and gradually profiled corners transitioning between the inboard edge and the leading and trailing edges, such that the inboard edge defines an anti-snagging edge profile and is configured for sweeping debris from a clearance between the undercarriage system and a main frame of the track-type machine. 16. The sweeping track shoe of claim 15 wherein the sweeping shoe body includes bolting apertures formed therein, the bolting apertures being arranged in a directional link bolting pattern and communicating between the upper shoe surface and the ground contacting shoe surface. 17. The sweeping track shoe of claim 16 wherein: the bolting apertures define a minor shoe axis intersecting the leading and trailing edges, and a major shoe axis oriented normal to the minor shoe axis and intersecting the outboard and inboard edges;the directional link bolting pattern is symmetric about the minor shoe axis; andthe sweeping shoe footprint is dimensionally asymmetric about the minor shoe axis such that a first distance from the minor shoe axis to the outboard edge is less than a second distance from the minor shoe axis to the inboard edge. 18. The sweeping track shoe of claim 17 wherein a first and a second of the bolting apertures are widely spaced from one another and positioned adjacent the leading edge, and a third and a fourth of the bolting apertures are closely spaced from one another and positioned adjacent the trailing edge. 19. The sweeping track shoe of claim 18 wherein the bolting apertures include a total of four bolting apertures each defining a center axis, wherein the widely spaced apertures include an inboard aperture and an outboard aperture, and wherein a distance from the center axis of the outboard aperture to the outboard edge is equal to about 200 millimeters, and a distance from the center axis of the inboard aperture to the inboard edge is equal to about 280 millimeters.

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Sweeping track shoe for undercarriage system in a track-type machine

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Sweeping track shoe for undercarriage system in a track-type machine

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