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公开(公告)号：US11632902B2
公开(公告)日：2023-04-25
申请号：US16874245
申请日：2020-05-14
发明人： Bruce Robert Shearer
IPC分类号： A01D41/14 , A01D34/28 , A01D34/40 , A01D34/14 , A01D34/04 , A01D61/02 , A01D57/26 , A01D47/00 , A01D57/03
摘要： A crop harvesting header having a frame mounted on a propulsion vehicle has a cutter bar carrying a sickle knife and a draper transport. The draper is guided at its front edge by a longitudinally extending rail mounted on the frame for movement therewith. The cutter bar is mounted on the frame at spaced positions by spring blades attached to a fixed beam at the rear which allow up and down flexing movement of the cutter bar relative to the draper engagement member. At the center discharge the cutter bar is carried on shorter blades which are carried on a beam in front of the front draper roller. The small amount of flexing of the cutter bar combines with a balanced three piece header frame to provide effective ground following.
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公开(公告)号：US20230114803A1
公开(公告)日：2023-04-13
申请号：US17499237
申请日：2021-10-12
发明人： DANIEL FLICK , KARL HUNDT , NOLAN MONHOLLEN
摘要： A method of navigating a vehicle through a field as it is being towed by a tractor. The method comprises obtaining an image of the field, segmenting the image to identify one or more crop rows, and steering the vehicle to avoid the one or more crop rows.
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公开(公告)号：US11564350B2
公开(公告)日：2023-01-31
申请号：US16788475
申请日：2020-02-12
发明人： James Thomas Dunn , Graham Michael Leverick , Russell George Lyons , Bruce Robert Shearer , Kyle Edward Boch
IPC分类号： A01D41/14 , A01D41/127 , A01B63/00 , A01B63/108 , A01D41/12 , F15B11/08 , F15B13/044 , F15B21/14 , F15B1/02 , F15B11/10
摘要： A header is supported by a pair of hydraulic float cylinders, where a float pressure to the cylinders is directly controlled by an electronic control supplying a variable control signal to a PPRR valve arrangement to maintain the float pressure at a predetermined value. At the set pressure a predetermined lifting force is provided to the header. A position sensor is used to generate an indication of movement and/or acceleration and/or velocity. The electronic control is arranged, in response to changes in the sensor signal, to temporarily change the control signal to vary the lifting force and thus change the dynamic response of the hydraulic float cylinder. A lift force greater than that required to lift the header can be provided by a lift cylinder and can be opposed in a controlled manner to apply a controlled downforce by the back of the same cylinder or by a separate component.
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公开(公告)号：US11432462B2
公开(公告)日：2022-09-06
申请号：US15747859
申请日：2017-06-19
发明人： Jann Peter Garbald , James Thomas Dunn , Graham Michael Leverick , Russell George Lyons , Bruce Robert Shearer , Neil Gordon Barnett
IPC分类号： A01D41/14 , A01B63/00 , A01D41/127 , A01B63/108
摘要： In a crop harvesting machine there is provided a pair of hydraulic float cylinders or springs for a header such as a rotary mower relative to a self-propelled vehicle, where a float spring force is controlled to provide a predetermined lifting force is provided to the header. The spring force is varied in response to detection of ground speed to decrease the lifting force at higher ground speeds. A position sensor is used to generate an indication of movement and/or acceleration. The electronic control is arranged, in response to changes in the sensor signal, to temporarily change the control signal to vary the lifting force and thus change the dynamic response of the hydraulic float cylinder. In order to reduce static friction so that the system can react quickly, an arrangement is provided for causing relative reciprocating movement in an alternating wave pattern between the piston and cylinder.
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公开(公告)号：US11272660B2
公开(公告)日：2022-03-15
申请号：US16591212
申请日：2019-10-02
发明人： Nolan Lacy , Philip Otto , Neil Barnett
摘要： A crop harvesting machine with a cutter bar on a header frame has a height control system which uses depending sensor fingers arranged in contact with the ground so as to measure a height of the cutter bar above the ground. The sensor fingers are controllably retractable under actuation from an operator in the cab or automatically in response to prescribed conditions being met. The actuator used in retracting the sensor fingers can also be used to adjustably control ground pressure of the sensor fingers in the deployed position of the sensor fingers engaging the ground. The header height is adjusted using laterally spaced apart hydraulic linkages which can be operated at different elevations relative to one another responsive to different height signals relating height of opposing ends of the header frame relative to the ground to also control tilt of the header relative to the harvester frame.
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公开(公告)号：US11160210B2
公开(公告)日：2021-11-02
申请号：US16440438
申请日：2019-06-13
摘要： In a harvesting header having a main frame divided into a center portion and two wing portions connected for pivotal movement about axes and including a rear wall. A reel is mounted on first and second reel arms and a rear auger is mounted at the top of the rear wall. The reel and the auger are also divided into three sections arranged end to end along the rear wall. The joint in the auger is arranged not at the axis but at a position spaced inwardly of the axis so that a first flight of the auger extends inboard of the first reel arm and a second flight of the auger extends inboard of the second reel arm to carry the crop engaging the first flight past the first space to the center portion of the header frame.
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公开(公告)号：US10462968B2
公开(公告)日：2019-11-05
申请号：US16214335
申请日：2018-12-10
发明人： Bruce Robert Shearer
摘要： A crop header having a frame mounted on a vehicle has a sickle cutter bar and a draper. The draper is guided at its front edge by a longitudinally extending rail mounted on the frame. The cutter bar is mounted at spaced positions by spring blades attached to a fixed beam at the rear which allow up and down flexing movement of the cutter bar relative to the draper rail. At the center discharge the cutter bar is carried on shorter blades which are carried on a beam in front of the front draper roller. A locking device is provided for commonly and automatically moving the beam in a direction to lift the cutter bar into a raised position in which the cutter bar is locked against flexing movement with the locking device being operable in response to the cutter bar being raised off the ground.
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公开(公告)号：US10412890B2
公开(公告)日：2019-09-17
申请号：US14936907
申请日：2015-11-10
IPC分类号： A01D34/00 , A01D41/14 , A01D34/04 , A01D34/14 , A01D34/38 , A01D41/127 , A01D101/00
摘要： A sickle cutting system is mounted on a header for forward travel over ground having a standing crop thereon and includes a cutter bar with a plurality of knife guards and two opposed sickle bars driven in opposite phase with a drive system for driving the sickle bar through repeated cycles of reciprocating movement from start-up of the system through to a shut-down. The drive system includes a control device responsive to the sensor signals from both of the first and second drive systems for advancing or retarding one of the first and second drive systems so that a number of sensor signals obtained from the first drive system is continually maintained so as to be substantially equal to a number of sensor signals obtained from the second drive system to maintain the sickle bars in opposite phase.
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公开(公告)号：US10321630B2
公开(公告)日：2019-06-18
申请号：US15661767
申请日：2017-07-27
IPC分类号： A01D41/14
摘要： A harvesting header is operable in a first mode of operation by engagement of a skid at the cutter bar for cutting along the ground. A gauging system operable in a second mode includes four ground engaging members supporting the header such that the cutter bar skid plate is at a controlled distance from the ground. The ground engaging members include a long skid and removable gauge wheels are carried on an elongate beam pivoted adjacent the cutter bar and extending to the rear of the frame and adjustable by an upstanding telescopic mast up to a position to allow the cutter bar to run on the ground. A resilient suspension can be provided at the rear of the beam at the junction to the post. The location under the table allows a very high adjustment of the cutter bar in the second mode.
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公开(公告)号：US09775291B2
公开(公告)日：2017-10-03
申请号：US14957058
申请日：2015-12-02
发明人： Brent Neudorf
CPC分类号： A01D41/145 , A01D41/14
摘要： A gauging system is adapted for use with a crop harvesting header of the type having a pair of wing frame portions connected to a center frame portion by a balancing linkage and which is operable in a first mode of operation by engagement of a skid plate of each wing frame portion along the ground. In one embodiment of the invention, the gauging system includes i) outer gauge wheels supporting the outer ends of the wing frame portions such that the skid plate is at a controlled distance from the ground and ii) inner gauge wheels proximate the center frame portion for supporting the inner ends of the wing frame portions such that the skid plate is at a controlled distance from the ground according to a second mode of operation of the header.
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