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公开(公告)号：US20230113995A1
公开(公告)日：2023-04-13
申请号：US18076957
申请日：2022-12-07
发明人： Gregory HONEY , Glenn HONEY
摘要： A knife drive assembly for use in a harvesting header may be mounted near the center line of the cutter bar of the header. Mechanical power from the power unit behind the header (typically the combine power output shaft) may be translated for application to two knife assembly sections in the cutter bar at the front of the cutter table. Movement of the two knife assembly sections with this apparatus can be fully synchronized and 180 degrees out of phase, to maximize cutting effectiveness and minimize vibration of the header. The unitary drive assembly may allow for rapid repair and manufacture, and the size and weight of the knife drive assembly may represent a significant weight and balance advantage over the prior art.
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公开(公告)号：US11497162B2
公开(公告)日：2022-11-15
申请号：US16356931
申请日：2019-03-18
摘要： The pivoting action sickle drive has a low profile allowing incorporation in or below a floor of a header of a plant cutting machine to allow passage of cut plant material thereabout. The drive includes a substantially flat rotatable input element, and a drive arm connected eccentric thereto for eccentric rotation along an epicyclical path. The arm extends to a connection with a pivot arm of a pivot element that connects to a knife arm that drives a sickle knife assembly, such that the pivot element, knife arm and knife assembly will be reciprocatingly driven by the eccentric rotation of the drive arm. A second drive can oppositely drive a second sickle knife assembly, such that opposite forces generated by the drives will cancel. The drives can be packaged in a forwardly tapered or curved enclosure, and the pivot elements can be correspondingly shaped to streamline the drives.
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公开(公告)号：US20210289696A1
公开(公告)日：2021-09-23
申请号：US16822841
申请日：2020-03-18
发明人： Stephen Todderud , Kevin Ward , Joel T. Cook
摘要： A header for an agricultural harvester including a knife drive disposed at a forward end of a feeder conveyor. An infeed drive is disposed adjacent the feeder conveyor, the infeed drive having an input and an output. An input shaft is drivingly connected to the infeed drive input, and an output shaft has a first end connected to the infeed drive output and a second end drivingly connected to the knife drive. The knife drive can be a center knife drive and the infeed drive, the input shaft and the output shaft operate as a fully mechanical drive power supply for the center knife drive which overcomes the deficiencies of hydraulically-driven knife drives.
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公开(公告)号：US10820496B2
公开(公告)日：2020-11-03
申请号：US15718142
申请日：2017-09-28
发明人： Joel Timothy Cook
IPC分类号： A01D34/404 , A01D34/30 , A01D41/14 , A01D61/02 , A01D61/00
摘要： A header for an agricultural harvester comprising a frame and an epicyclical drive operatively connected to the frame. The epicyclical drive includes a first rotatable wheel having a first central rotational axis and a first flange. The first flange includes a first eccentric axis rotatable about the first central rotational axis, and a first output shaft spaced from the first eccentric axis. The epicyclical drive further includes a second rotatable wheel having a second central rotational axis and a second flange. The second flange includes a second eccentric axis rotatable about the second central rotational axis, and a second output shaft spaced from the second eccentric axis. The header further includes a first cutter bar directly connected to the first output shaft and a second cutter bar directly connected to the second output shaft. Operation of the epicyclical drive results in substantially linear oscillating motion of the cutter bars.
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公开(公告)号：US20200260641A1
公开(公告)日：2020-08-20
申请号：US16761555
申请日：2018-11-05
申请人： SMF - HOLDING GMBH
发明人： Ralf SCHMIDT , Sascha OTTO
摘要： A cutting device for an agricultural harvesting machine including: a drive; a transmission arrangement having an input element drivingly connected to the drive and driven reciprocatingly by the drive along an input travel; and a knife having a plurality of cutting edges, the knife being drivingly connected to and driven by an output element of the transmission arrangement along an output travel longer than the input travel, is driven in a reciprocating motion in such a way that the cutting edges of the knife pass in each case at least two counter-cutting edges of the cutting device when moving in one direction along the entire output travel.
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公开(公告)号：US10721862B2
公开(公告)日：2020-07-28
申请号：US14107397
申请日：2013-12-16
申请人： CNH America LLC
发明人： Seth Michael Bich
摘要： An improved cutter assembly for use with a header of an agricultural harvester is provided. The assembly includes a pair of oppositely directed knife blades or cutter bars and a center knife drive. A crank shaft drives both knife blades in linear reciprocating paths with no fore and aft movement. As a consequence, harmful fore and aft vibration is eliminated. The assembly is simple and durable in design, less susceptible to vibration-induced wear and tear, and comparatively simple to manufacture and repair.
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公开(公告)号：US10674657B2
公开(公告)日：2020-06-09
申请号：US15799060
申请日：2017-10-31
发明人： David DeChristopher , Joel Cook
摘要： A header for an agricultural harvester including an epicyclical drive gear train operatively connected to a first cutter bar, an epicyclical driven gear train operatively connected to a second cutter bar, and a shaft extending between and operatively connected to the epicyclical drive gear train and the epicyclical driven gear train. The epicyclical drive gear train rotates in a first direction and the shaft is configured to rotate the epicyclical driven gear train in a second direction opposite the first direction or in the same direction as the first direction. Each of the epicyclical drive gear train and epicyclical driven gear train includes a bevel gear for operatively engaging bevel gears on the shaft. Operation of the epicyclical drive gear train and epicyclical driven gear train results in substantially linear oscillating motion of the cutter bars.
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公开(公告)号：US10653059B2
公开(公告)日：2020-05-19
申请号：US15612396
申请日：2017-06-02
摘要： The pivoting action sickle drive has a low profile allowing incorporation in or below a floor of a header of a plant cutting machine to allow passage of cut plant material thereabout. The drive includes a substantially flat rotatable input element, and a drive arm connected eccentric thereto for eccentric rotation along an epicyclical path. The arm extends to a connection with a pivot arm of a pivot element that connects to a knife arm that drives a sickle knife assembly, such that the pivot element, knife arm and knife assembly will be reciprocatingly driven by the eccentric rotation of the drive arm. A second drive can oppositely drive a second sickle knife assembly, such that opposite forces generated by the drives will cancel. The drives can be packaged in a forwardly tapered or curved enclosure, and the pivot elements can be correspondingly shaped to streamline the drives.
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公开(公告)号：US10568262B2
公开(公告)日：2020-02-25
申请号：US15718658
申请日：2017-09-28
发明人： Joseph P. Deevy
摘要： An agricultural vehicle includes a chassis and a header. The header includes a cutter bar and a cutter bar feedback control system. The cutter bar is moveably connected to the header and has a first knife and a second knife. The cutter bar feedback control system is coupled to the cutter bar and is configured for selectively controlling a speed of the second knife. The cutter bar feedback control system includes a continuously variable transmission that is operably coupled to the second knife, a first sensor operably coupled to the first knife, a second sensor operably coupled to the second knife, and a controller in communication with the continuously variable transmission, the first sensor, and the second sensor. The controller is configured for controlling the continuously variable transmission to control the speed of the second knife such that the first knife and second knife synchronously reciprocate in opposing directions.
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公开(公告)号：US09961828B2
公开(公告)日：2018-05-08
申请号：US14890360
申请日：2014-05-08
IPC分类号： A01D34/04 , A01D34/30 , A01D41/14 , A01D75/18 , A01D101/00
CPC分类号： A01D34/04 , A01D34/30 , A01D41/14 , A01D75/185 , A01D2101/00
摘要： A cutter guard assembly for a knife drive of an agricultural farm implement is provided. The cutter guard assembly includes a cutter bar assembly, a floor assembly and a knife assembly. The cutter bar assembly has a cutter bar. The floor assembly includes a floor extending from the cutter bar and a cover extending from the floor. The knife assembly is covered by and situated below the floor assembly. In operation the cover drapes over a rigid frame of a header shielding the knife assembly from debris.
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