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公开(公告)号：WO2022077122A1
公开(公告)日：2022-04-21
申请号：PCT/CA2021/051459
申请日：2021-10-18
Applicant: MACDON INDUSTRIES LTD.
Inventor： MALKOWICH, Garrett , SHEARER, Bruce Robert , DUNN, James Thomas
Abstract: A draper header for harvesting crops includes a header frame with a middle frame section pivotally coupled between a pair of side wing sections. A cutter bar assembly extends across a front portion of the header frame and is flexible with the side wing sections for cutting the crops to be harvested. A pair of crop pick-up reels are rotatably supported by center and outer reel support arms for engaging the crops to be harvested. A sensing system is operatively coupled to the header frame for detecting when at least one of the side wing sections pivots downwardly relative to the middle frame section. When the sensing system detects that at least one of the side wing sections pivots downwardly past a predetermined pivot angle, a down-stop cylinder is actuated to raise the crop pick-up reels, thereby preventing contact of the crop pick-up reels with the cutter bar assembly.
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公开(公告)号：WO2019113672A1
公开(公告)日：2019-06-20
申请号：PCT/CA2017/051496
申请日：2017-12-11
Applicant: MACDON INDUSTRIES LTD.
Inventor： DUNN, James Thomas , LEVERICK, Graham Michael , LYONS, Russell George , SHEARER, Bruce Robert , BOCH, Kyle Edward
IPC: A01D41/127 , A01D41/04 , A01D41/06 , A01D47/00
Abstract: A crop machine having a first frame section pivotally connected to a second frame section, wherein each frame section is supported by hydraulic float cylinders directly controlled by an electronic control supplying a variable control signal to a PPRR valve arrangement to maintain a float pressure in each hydraulic cylinder at a predetennined value. The electronic control is arranged, in response to variation in a position sensor signal that provides an indication of movement and/or acceleration and/or velocity, to adjust the control signal to vary the lifting force of each hydraulic cylinder. A common accumulator is included, such that downward flexing of the second frame section forces additional fluid into a first hydraulic cylinder to apply additional lift pressure to the first frame section and upward flexing of the second frame section removes fluid from the first hydraulic cylinder to apply reduced lift pressure to the first frame section.
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公开(公告)号：WO2019046930A1
公开(公告)日：2019-03-14
申请号：PCT/CA2018/051040
申请日：2018-08-29
Applicant: MACDON INDUSTRIES LTD.
Inventor： SHEARER, Bruce Robert
IPC: A01D57/02
Abstract: A crop harvesting header includes a reel for controlling movement of the crop in the area over the cutter bar to the transport draper carried on two reel mounting arms for upward and downward movement and for moving the reel forwardly and rearwardly along the respective reel mounting arm. The reel has a plurality of reel bats with reel fingers projecting generally radially outwardly from the reel axis where the reel bats are pivotal to vary the angle of the finger driven by a cam track member. An adjustment component defined by a follower in a guide track along one of the arms is responsive to movement of the reel along the arm which causes the cam track member to be angularly advanced and retarded about the reel axis to different adjustment angles in dependence upon the position of the reel along the mounting arms.
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公开(公告)号：WO2019140512A1
公开(公告)日：2019-07-25
申请号：PCT/CA2019/050047
申请日：2019-01-14
Applicant: MACDON INDUSTRIES LTD.
Inventor： SHEARER, Bruce Robert , LEACHMAN, Jeffrey David
IPC: A01D41/127 , A01D41/06 , A01D45/00 , A01D47/00
CPC classification number: A01D41/141 , A01D57/02
Abstract: A harvesting vehicle includes a header having a cutter bar, a crop transport draper and a reel mounted above the cutter bar to sweep the crop to the draper. The operation of the header is autonomously monitored and controlled to reduce operator loads or to run autonomously by detecting: reel wrapping; differential rates of flow of crop on the header at different locations; where the crop to be cut is at least partly lodged so that stems of the crop are not vertical; the presence of a crop streak of uncut or poorly cut crop behind the cutter bar and/or a band of disturbed soil behind the cutter bar. The detector is arranged to control ground speed, header height, reel height and operation.
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Patent Agency Ranking
公开(公告)号：WO2019113671A1
公开(公告)日：2019-06-20
申请号：PCT/CA2017/051494
申请日：2017-12-11
Applicant: MACDON INDUSTRIES LTD.
Inventor： DUNN, James Thomas , LEVERICK, Graham Michael , LYONS, Russell George , SHEARER, Bruce Robert , BOCH, Kyle Edward
Abstract: A header is supported by a pair of hydraulic float cylinders, wherein 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 such that the lifting force is reduced both when the crop component floats upwardly and when the crop component floats downwardly from an intermediate float position.
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公开(公告)号：WO2017219130A1
公开(公告)日：2017-12-28
申请号：PCT/CA2017/050748
申请日：2017-06-19
Applicant: MACDON INDUSTRIES LTD.
Inventor： GARBALD, Jann Peter , DUNN, James Thomas , LEVERICK, Graham Michael , LYONS, Russell George , SHEARER, Bruce Robert , BARNETT, Neil Gordon
IPC: A01D41/127 , A01D41/06 , A01D47/00
Abstract: 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.
Abstract translation: 在农作物收割机中，提供了一对用于诸如旋转式割草机的头部的相对于自动推进车辆的液压浮筒或弹簧，其中控制浮力弹簧力以提供 预定的提升力被提供给头部。 响应于检测到地面速度而改变弹簧力以降低在较高地速下的提升力。 位置传感器用于产生移动和/或加速度的指示。 响应于传感器信号的变化，电子控制装置被布置为暂时改变控制信号以改变提升力并因此改变液压浮筒的动态响应。 为了减少静摩擦以使系统能够快速反应，提供了一种装置，用于引起活塞和气缸之间的交替波形的相对往复运动。
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公开(公告)号：WO2021062552A1
公开(公告)日：2021-04-08
申请号：PCT/CA2020/051323
申请日：2020-10-02
Applicant: MACDON INDUSTRIES LTD.
Inventor： REMILLARD, Rheal , SHEARER, Bruce Robert
Abstract: 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：WO2019169473A1
公开(公告)日：2019-09-12
申请号：PCT/CA2019/050063
申请日：2019-01-17
Applicant: MACDON INDUSTRIES LTD.
Inventor： DUNN, James Thomas , SHEARER, Bruce Robert
Abstract: 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 sickle bars driven at a phase angle difference where the drive system has a phase difference control component operable to drive the first and second sickle bars at a first phase angle difference typically at or around 180 degrees difference to minimize vibration when no cutting action is occurring and at a second phase angle difference which can be at or around 90 degrees to minimize variations in loading applied to the drive system when the cutting action is taking place.
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公开(公告)号：WO2019018923A1
公开(公告)日：2019-01-31
申请号：PCT/CA2018/050876
申请日：2018-07-19
Applicant: MACDON INDUSTRIES LTD.
Inventor： LYONS, Russell George , SHEARER, Bruce Robert
Abstract: 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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