Controlled header lowering on an agricultural harvester

    公开(公告)号:US11219162B2

    公开(公告)日:2022-01-11

    申请号:US16392082

    申请日:2019-04-23

    申请人: Deere & Company

    摘要: A header assembly for an agricultural harvesting machine comprises a first frame assembly, a second frame assembly that supports a cutter, and is pivotable relative to the first frame assembly, a float cylinder coupled between the first frame assembly and the second frame assembly, an accumulator, and fluidic circuitry that fluidically couples the accumulator to the float cylinder. The fluidic circuitry is configured to provide a first flow of pressurized fluid under pressure to the float cylinder, so the float cylinder exerts a float force on the second frame assembly, and based on a control input that corresponds to a lowering operation of the header assembly, provide a restricted flow of fluid, that is restricted relative to the first flow, between the float cylinder and the accumulator.

    Harvester wing leveling configuration

    公开(公告)号:US11019770B2

    公开(公告)日:2021-06-01

    申请号:US16423642

    申请日:2019-05-28

    申请人: Deere & Company

    摘要: A harvesting platform includes a first section and extends along a first section plane that is substantially parallel to a ground surface along which the harvesting platform moves with a combine. A second section is connected to the first side of the first section, and rotates with respect to the first section within a range of angular positions. A locking mechanism retains the second section in a position with respect to the first section while activated, and permits movement of the second section with respect to the first section while deactivated. A controller receives a first signal indicative of the position, and sends a second signal to deactivate the locking mechanism in response to the position being at a positive non-parallel angle with respect to the first section plane. The second section moves toward the first section plane in response to gravity while the locking mechanism is deactivated.

    Orificed check valve in wing circuit

    公开(公告)号:US10820466B2

    公开(公告)日:2020-11-03

    申请号:US16028363

    申请日:2018-07-05

    申请人: Deere & Company

    摘要: A wing locking system for a harvesting header is provided. The wing locking system includes an accumulator, a fluid cylinder operably attached to a wing of the harvesting header, a hose fluidly connecting the accumulator and the fluid cylinder, and a valve operably disposed between the accumulator and the fluid cylinder. The valve includes a first selectable position configured to permit a first fluid flow rate between the accumulator and the fluid cylinder and a second selectable position configured to permit a second fluid flow rate from the accumulator to the fluid cylinder. The first fluid flow rate is greater than the second fluid flow rate.

    Harvesting head constant force assembly

    公开(公告)号:US10524422B2

    公开(公告)日:2020-01-07

    申请号:US15499939

    申请日:2017-04-28

    申请人: Deere & Company

    IPC分类号: A01D41/14 A01D41/06

    摘要: An agricultural harvesting head for an agricultural harvester has a constant force assembly that changes the mechanical advantage of a spring applied to the mainframe of the agricultural harvesting head. As the mainframe of the agricultural harvesting head moves up and down on the front of the combine feederhouse, compressing and decompressing the spring, the constant force assembly changes the mechanical advantage of the spring such that the spring provides a relatively constant lifting force to the mainframe of the harvesting head as the mainframe moves up and down.

    Roll center for attachment frame control arms

    公开(公告)号:US10517215B2

    公开(公告)日:2019-12-31

    申请号:US15782518

    申请日:2017-10-12

    申请人: Deere & Company

    摘要: An agricultural harvesting header includes a first frame portion and a second frame portion moveably connected to the first frame portion. An upper control arm is pivotally connected to the first frame portion and pivotally connected to the second frame portion. A lower control arm pivotally connected to the first frame portion and pivotally connected to the second frame portion. The connection between the first frame portion, second frame portion, upper control arm, and a lower control arm forms a roll center positioned at or below ground level.

    CUTTERBAR ANGLE CHANGE WITH FOUR BAR LINKAGE
    37.
    发明申请

    公开(公告)号:US20190380269A1

    公开(公告)日:2019-12-19

    申请号:US16010200

    申请日:2018-06-15

    申请人: Deere & Company

    摘要: A control arm linkage system includes a pair of upper control arms and a pair of lower control arms to attach a crop harvesting header to a harvester frame of an agricultural harvester. The attachment of the header to the harvester via the control arm linkage system allows the header to move relative the harvester, with the header being displaced upward and heeled backwards in response to an upward force being imparted onto a lower surface of the header. The control arm linkage system thus allows the header to automatically adjust and adapt to unexpected raised mound that may be encountered along the path of the header during harvesting.

    HARVESTING HEAD CONSTANT FORCE ASSEMBLY
    38.
    发明申请

    公开(公告)号:US20180310476A1

    公开(公告)日:2018-11-01

    申请号:US15499939

    申请日:2017-04-28

    申请人: Deere & Company

    IPC分类号: A01D41/14 A01D41/06

    摘要: An agricultural harvesting head for an agricultural harvester has a constant force assembly that changes the mechanical advantage of a spring applied to the mainframe of the agricultural harvesting head. As the mainframe of the agricultural harvesting head moves up and down on the front of the combine feederhouse, compressing and decompressing the spring, the constant force assembly changes the mechanical advantage of the spring such that the spring provides a relatively constant lifting force to the mainframe of the harvesting head as the mainframe moves up and down.

    Drive assembly for an agricultural harvesting platform
    40.
    发明授权
    Drive assembly for an agricultural harvesting platform 有权
    农业收割平台的驱动装配

    公开(公告)号:US08973345B2

    公开(公告)日:2015-03-10

    申请号:US13759509

    申请日:2013-02-05

    申请人: Deere & Company

    IPC分类号: A01D34/30 A01D34/02 A01D41/14

    摘要: A drive arrangement for driving a first sickle bar section (42) and a second sickle bar section (36) of a harvesting platform (20) comprises a first gearbox (54) and the second gearbox (74) having an output drivingly connected to a respective first end of a respective sickle bar section (36, 42). Drive trains connect the first gearbox (54) and the second gearbox (74) to an input drive shaft (24). At least one of the drive trains comprises a belt drive. A synchronization transmission (82) is coupled to the second ends of the sickle bar sections (36, 42) and couples them in opposite movement directions.

    摘要翻译: 用于驱动收割平台(20)的第一镰刀杆部分(42)和第二镰刀杆部分(36)的驱动装置包括第一齿轮箱(54)和第二齿轮箱(74),其具有驱动地连接到 相应的镰刀杆部分(36,42)的第一端。 驱动列将第一变速箱(54)和第二变速箱(74)连接到输入驱动轴(24)。 至少一个传动系包括皮带传动。 同步传动装置(82)联接到镰刀杆部分(36,42)的第二端,并将它们沿相反的运动方向连接。