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公开(公告)号：US20240049644A1
公开(公告)日：2024-02-15
申请号：US17766278
申请日：2020-10-02
CPC分类号： A01D57/04 , A01D34/04 , A01D34/283
摘要： A reel of a harvester including a cutter bar includes a plurality of reel bats which are pivotal so as to vary the angle of the fingers about the bat axis as the reel rotates. The reel is used with a cutter bar which can change in height at one or more positions along its length to accommodate changes in ground height and contour. In order to maintain the fingers of the reel as close as possible to the cutter bar for best crop control, there is provided a sensor at each of one or more positions along the cutter bar responsive to the cutter bar height and an actuator which changes the diameter of the reel bats at the respective position.
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公开(公告)号：US11849675B2
公开(公告)日：2023-12-26
申请号：US16632134
申请日：2018-07-19
CPC分类号： A01D61/02 , A01D61/006 , A01D34/14
摘要： A header for a crop harvester includes side drapers having a front edge adjacent the cutter bar and carrying crop to a discharge end roller at a center feed draper. A support arrangement carries the rear end of the discharge end roller to define an operating position in which an axis of the discharge end roller is at an angle to an axis of the outer end roller of the side draper with the rear end of the discharge end roller at a height below a height of the rear end of the outer end roller. This provides a main portion of the belt that lies in a common plane defined by an intermediate guide member and the outer end roller and a smaller portion of the draper belt between the guide member and the rear end of the discharge end roller which is twisted downwardly from the common plane.
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公开(公告)号：US10791671B2
公开(公告)日：2020-10-06
申请号：US15817417
申请日：2017-11-20
发明人： Bruce Robert Shearer
IPC分类号： A01D34/28 , A01D34/04 , A01D61/02 , A01D34/40 , A01D41/14 , A01D57/03 , A01D34/14 , A01D47/00
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：US20200077585A1
公开(公告)日：2020-03-12
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 , A01B63/108 , A01D41/127
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：US20200000033A1
公开(公告)日：2020-01-02
申请号：US16452030
申请日：2019-06-25
IPC分类号： A01D41/14 , A01D47/00 , A01D41/127
摘要： In a crop harvesting header with a center section and two wings where each wing is pivotal relative to the center section about a pivot axis extending in a generally forward direction which includes a balance system to maintain a balanced ground force distribution across the width of the header there is provided an automatic adjustment system for maintaining proper balance. The system includes angle or other sensors which detect the pivot angle of the wing section. This can be used in a static testing system where the position to set to a detected midpoint and/or in a dynamic system where repeatedly, over a time period during which the header is operating, data is detected relating to the positions of each wing frame portion.
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公开(公告)号：US20170359954A1
公开(公告)日：2017-12-21
申请号：US15188468
申请日：2016-06-21
IPC分类号： A01D41/127 , F15B11/08 , F15B13/044 , A01B63/00 , F15B13/04 , A01B63/10
CPC分类号： A01D41/127 , A01B63/008 , A01B63/10 , A01D41/141 , F15B11/08 , F15B13/0401 , F15B13/044 , F15B2211/426 , F15B2211/526
摘要： In a crop harvesting machine there is provided a pair of hydraulic float cylinders for a header relative to a vehicle, 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. 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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7.发明授权公开(公告)号：US10999969B2
公开(公告)日：2021-05-11
申请号：US15817404
申请日：2017-11-20
发明人： Bruce Robert Shearer
IPC分类号： A01D34/28 , A01D41/14 , A01D57/26 , A01D34/04 , A01D61/02 , A01D34/40 , A01D57/03 , A01D34/14 , A01D47/00
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：US10952375B2
公开(公告)日：2021-03-23
申请号：US16113521
申请日：2018-08-27
摘要： In a crop harvesting header with a center section and two wings where each wing is pivotal relative to the center section about a pivot axis extending in a generally forward direction which includes a balance system to maintain a balanced ground force distribution across the width of the header there is provided an automatic adjustment system for maintaining proper balance. The system includes a sensor which repeatedly, over a time period during which the header is operating, detects data relating to the positions, distance from the ground or weight applied to the ground of each wing frame portion, a processor arranged in response to the sensed data to calculate a value representative of the positions and an adjustment mechanism for effecting an adjustment of the balance system in response to the value.
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公开(公告)号：US10681865B2
公开(公告)日：2020-06-16
申请号：US15961485
申请日：2018-04-24
发明人： James Thomas Dunn , Graham Michael Leverick , Russell George Lyons , Bruce Robert Shearer , Kyle Edward Boch
IPC分类号： A01D41/14 , A01B63/00 , A01B63/108 , A01D41/127 , 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：US10149431B2
公开(公告)日：2018-12-11
申请号：US14937180
申请日：2015-11-10
IPC分类号： A01D34/13 , A01D34/40 , A01D34/14 , A01D34/30 , 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 at least one sickle bar 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 an arrangement to halt the sickle bar on shut-down at a predetermined position of the knife blades relative to the knife guards and preferably the position where the blades lie intermediate two knife guards. The system can be halted by either a physical stop member at the required position or by detecting the position of the sickle bar during operation and causing it to halt the required position. The detection can be carried out by counting pulses generated by markers on a rotary member of the drive system.
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