Adjustable and removable track assembly for a tractor
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B62D-055/065
B62D-055/084
B62D-055/125
출원번호
US-0375632
(2016-12-12)
등록번호
US-10214256
(2019-02-26)
발명자
/ 주소
Rehberg, Michael A.
출원인 / 주소
DEERE & COMPANY
대리인 / 주소
Taft Stettinius & Hollister LLP
인용정보
피인용 횟수 :
0인용 특허 :
7
초록▼
A tractor includes a frame including an axle, the axle including an axle shaft and a beam member. A cab is mounted to the frame, the cab including controls for controlling the tractor. A ground-engaging mechanism coupled to the axle, the second ground-engaging mechanism including a track assembly. T
A tractor includes a frame including an axle, the axle including an axle shaft and a beam member. A cab is mounted to the frame, the cab including controls for controlling the tractor. A ground-engaging mechanism coupled to the axle, the second ground-engaging mechanism including a track assembly. The track assembly includes an undercarriage assembly, a carrier housing, a ring gear, and a track, where the carrier housing includes a pivot arm for pivoting coupling to the undercarriage assembly. The ring gear defines an outer diameter, and the axle shaft and beam member are adjustably coupled to the carrier housing at a location inside the outer diameter.
대표청구항▼
1. A tractor, comprising: a frame including an axle, the axle including an axle shaft and a beam member;a cab mounted to the frame, the cab including controls for controlling the tractor;a ground-engaging mechanism coupled to the axle, the ground-engaging mechanism including a track assembly;the tra
1. A tractor, comprising: a frame including an axle, the axle including an axle shaft and a beam member;a cab mounted to the frame, the cab including controls for controlling the tractor;a ground-engaging mechanism coupled to the axle, the ground-engaging mechanism including a track assembly;the track assembly including an undercarriage assembly, a carrier housing, a ring gear, and a track, the carrier housing including a pivot arm for pivoting coupling to the undercarriage assembly;wherein, the ring gear defines an outer diameter, and the axle shaft and beam member are adjustably coupled to the carrier housing at a location inside the outer diameter. 2. The tractor of claim 1, wherein the carrier housing is adjustably coupled to the axle shaft and beam member to allow the track assembly to be movably adjusted in a fore and aft direction relative to the frame. 3. The tractor of claim 2, wherein the track assembly comprises a single modular unit that is adjustably and slidably coupled to the axle shaft and beam member. 4. The tractor of claim 1, wherein the pivot arm defines a pivot axis about which the undercarriage assembly pivots relative to the carrier housing, the pivot axis being located inside the outer diameter. 5. The tractor of claim 4, wherein the undercarriage assembly comprises a first idler wheel, a second idler wheel, an undercarriage frame, and at least one bogey wheel. 6. The tractor of claim 5, wherein the track is disposed in tension about the outer diameter of the ring gear, the first idler wheel, the second idler wheel, and the at least one bogey wheel such that an outer periphery of the track forms a substantially triangular shape. 7. The tractor of claim 5, wherein a first angle is defined by a first portion of the track that is in contact with the first idler wheel, and a second angle is defined by a second portion of the track that is in contact with the second idler wheel, where a first line bisecting the first angle intersects with a second line bisecting the second angle at the pivot axis. 8. The tractor of claim 1, wherein the ring gear comprises a sprocket with openings defined along its outer diameter, and the track comprises lugs along an inner portion thereof, the lugs receivably engaged with the openings as the track moves about the outer diameter of the ring gear. 9. The tractor of claim 1, wherein the track assembly comprises a hub assembly, a sleeve, and a drive gear, the hub assembly and sleeve being coupled to one another to form a compressive coupling between the track assembly and the axle shaft. 10. The tractor of claim 9, wherein the hub assembly comprises a first portion and a second portion. 11. The tractor of claim 9, wherein the sleeve is tapered from a first end to a second end thereof to define a sleeve ramp, and the hub assembly is tapered from a first end to a second end thereof to define a hub ramp, the sleeve ramp and hub ramp being in contact with one another when the track assembly is coupled to the axle shaft. 12. The tractor of claim 11, wherein the sleeve comprises an outer face with a plurality of openings defined in the outer face, where fasteners mechanically couple the sleeve to the hub assembly. 13. The tractor of claim 11, wherein as the sleeve is coupled to the hub assembly, the sleeve ramp slides in contact with the hub ramp to apply a compressive force against the axle shaft. 14. The tractor of claim 9, wherein the track assembly and axle shaft form a planetary gearset including a sun, a carrier assembly, a pinion, and a ring, where the axle shaft is the sun, the carrier housing is the carrier assembly, the ring gear is the ring, and the drive gear is the pinion. 15. The tractor of claim 1, wherein the beam member defines a plurality of holes spaced about its length in a longitudinal direction, the track assembly being removably coupled at any location along the length of the beam member via a fastener mechanically coupling the track assembly to the beam member via at least one of the plurality of holes. 16. A track assembly for coupling to an axle of a work machine, comprising: a track;an undercarriage assembly including a first idler wheel, a second idler wheel, an undercarriage frame, and at least one bogey wheel;a carrier housing including a pivot arm for pivoting coupling to the undercarriage assembly;a ring gear defining an outer diameter and circumscribing the carrier housing;a drive gear configured to be rotatably coupled to 1 drive input of the axle, the drive gear rotatably coupled to the ring gear;wherein, the carrier housing is configured to be adjustably coupled to the axle at a location inside the outer diameter. 17. The track assembly of claim 16, wherein the pivot arm defines a pivot axis about which the undercarriage assembly pivots relative to the carrier housing, the pivot axis being located inside the outer diameter. 18. The track assembly of claim 16, wherein: the track is disposed in tension about the outer diameter of the ring gear, the first idler wheel, the second idler wheel, and the at least one bogey wheel such that an outer periphery of the track forms a substantially triangular shape; anda first angle is defined by a first portion of the track that is in contact with the first idler wheel, and a second angle is defined by a second portion of the track that is in contact with the second idler wheel, where a first line bisecting the first angle intersects with a second line bisecting the second angle at the pivot axis. 19. The track assembly of claim 16, further comprising a hub assembly, a sleeve, and a drive gear, the hub assembly and sleeve being coupled to one another to form a compressive coupling between the track assembly and the axle shaft. 20. The track assembly of claim 19, wherein the sleeve is tapered from a first end to a second end thereof to define a sleeve ramp, and the hub assembly is tapered from a first end to a second end thereof to define a hub ramp, the sleeve ramp and hub ramp being slidably coupled to one another when the track assembly is coupled to the axle.
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