Belt drive for a harvesting header with a movable cutterbar
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A01D-034/00
출원번호
UP-0460502
(2009-07-20)
등록번호
US-7730702
(2010-06-29)
발명자
/ 주소
Mortier, Geert P.
Pictricola, Paolo
출원인 / 주소
CNH America LLC
대리인 / 주소
Harms, Michael G.
인용정보
피인용 횟수 :
4인용 특허 :
11
초록▼
A header for a harvesting machine with a movable cutterbar includes a belt drive mechanism connecting a stationary pulley mounted on the frame of the header and a relatively movable pulley mounted on the movable part of the header. The belt drive mechanism includes two guide pulleys, a belt mounted
A header for a harvesting machine with a movable cutterbar includes a belt drive mechanism connecting a stationary pulley mounted on the frame of the header and a relatively movable pulley mounted on the movable part of the header. The belt drive mechanism includes two guide pulleys, a belt mounted along said pulleys, and a pivot assembly mounted on the auger shaft. The guide pulleys are mounted on opposite lever arms of the pivot and said belt drive mechanism further includes a tensioning mechanism.
대표청구항▼
The invention claimed is: 1. An extendable header for a harvesting machine, said header comprising: a cutterbar mounted on a movable part of the header; an auger mounted to an auger shaft, wherein the auger shaft mounted to a frame of the header; a belt drive mechanism drivingly connecting a statio
The invention claimed is: 1. An extendable header for a harvesting machine, said header comprising: a cutterbar mounted on a movable part of the header; an auger mounted to an auger shaft, wherein the auger shaft mounted to a frame of the header; a belt drive mechanism drivingly connecting a stationary pulley mounted on the frame of the header, said belt drive mechanism further comprising two guide pulleys, a belt mounted along said pulleys, and a pivot assembly, wherein said pivot assembly is mounted on the auger shaft of the header and said guide pulleys are mounted on opposite ends of the pivot assembly, said pivot assembly being movable concurrently with the movable part of the header. 2. A header according to claim 1, wherein the pivot assembly includes a bushing mounted on the auger shaft of the auger. 3. A header according to claim 1, wherein said pivot assembly includes two pivotable elements and an intermediate spring, both guide pulleys being mounted on opposite ends of a first of the pivotable elements. 4. A header according to claim 3, wherein said belt drive mechanism further includes a mechanism for keeping the tension of the belt constant over the full range of header movement, said mechanism including a positioning linkage, the intermediate spring and a tensioning linkage, said positioning linkage being mounted between the movable part of the header and a second of the pivotable elements, said tensioning linkage being mounted between the header frame and said second pivotable element, and said spring being mounted between the first of the pivotable elements and the tensioning linkage. 5. A header according to claim 4, wherein said tensioning linkage and said positioning linkage are configured for varying the compression or extension of the spring when the cutterbar is moved away from or towards the frame. 6. A header according to claim 4, wherein said tensioning linkage is a hinge system that is configured to compress the spring when the cutterbar is moved towards a middle position, and to decompress the spring when the cutterbar is moved towards the fully extended or fully retracted position. 7. A header according to claim 1, wherein the pivot assembly is configured such that one of the guide pulleys is pivoted towards the movable pulley, and the other of the guide pulleys is pivoted towards the stationary pulley, such that the zigzag path traced by the belt around the pulleys is flattened and the belt gives more length between the stationary and relatively movable pulleys, when the cutterbar is moved away from the frame, and vice versa when the cutterbar is moved towards the frame. 8. A header according to claim 1, wherein one of the two guide pulleys mounted on the pivot assembly is positioned closer to the auger shaft of the auger than the other guide pulley. 9. A header according to claim 1, wherein the relatively movable pulley is fitted to an input shaft of a wobble box for reciprocating the blades of the cutterbar. 10. A header according to claim 1, wherein one or more idler pulleys are mounted on the frame of the header. 11. A header according to claim 1, wherein the pivot assembly is removable from the auger shaft of the auger by disassembling a single bolt.
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이 특허에 인용된 특허 (11)
Brunr Hasse (Hjo SEX) Persson Lars I. (Hgans SEX), Apparatus for a harvesting machine.
Schumacher ; II Gustav (Gartenstrasse 8 D-5231 Eichelhardt DEX) Schumacher Guenter (Raiffeisenstrasse 10 D-5231 Eichelhardt DEX), Reaping platform for harvesting machines.
Bich, Gary L.; Rayfield, James F.; Klotzbach, Karl W., Agricultural plant cutting header with fore and aft adjustable flexible cutterbar having automatic preload adjustment.
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