公开(公告)号：US09168784B2

公开(公告)日：2015-10-27

申请号：US13835482

申请日：2013-03-15

申请人： CNH AMERICA, LLC

发明人： David M. DeChristopher ,  Benjamin C. Diem ,  Todd B. Pierce

IPC分类号： B60B33/00 ,  B60B33/04

CPC分类号： B60B33/0071 ,  B60B33/0068 ,  B60B33/04

摘要： A non-zero caster angle for the rear axle swivel caster wheels on a self-propelled agricultural harvesting machine wherein steering is accomplished by varying speed and/or direction of forward drive wheels. The non-zero caster angle may be fixed or an adjuster mechanism may be provided to allow adjustment within a range of caster angles. The adjuster mechanism incorporates a fixed portion connected to the tractor frame and a pair of rotating portions, one connected to each caster wheel which allows rotation of the caster axis in a plane parallel to the machine longitudinal axis. Also disclosed is an actuator mechanism for providing powered adjustment of the caster angle, even including a control system for active caster angle adjustment.

摘要翻译： 在自走式农业收割机上用于后轮转动脚轮的非零脚轮角度，其中通过改变前进驱动轮的速度和/或方向来实现转向。 非零脚轮角度可以是固定的，或者可以设置调节器机构以允许在一个范围的脚轮角度内进行调节。 调节器机构包括连接到拖拉机框架的固定部分和一对旋转部分，一个连接到每个脚轮的转动部分，其允许脚轮轴线在与机器纵向轴线平行的平面中旋转。 还公开了一种用于提供脚轮角度的动力调节的致动器机构，甚至包括用于主动脚轮角度调节的控制系统。

公开(公告)号：US09101090B2

公开(公告)日：2015-08-11

申请号：US13905528

申请日：2013-05-30

申请人： CNH AMERICA, LLC

发明人： Todd B. Pierce ,  Philip J. Ehrhart ,  Mark D. Layton ,  Cecil R. Sudbrack

IPC分类号： A01D34/00 ,  A01D69/03 ,  B62D11/00 ,  A01D41/127

CPC分类号： A01D69/03 ,  A01D41/1278 ,  B62D11/005

摘要： An autoguidance interface for a hydraulic steering system for a differential steered self-propelled agricultural windrower, windrower speed and direction controlled by adjustment to a control input shaft to control the output of a pair of tandem-mounted hydraulic drive pumps and provide motive power for the windrower. The control input shaft is rotatable and axially moveable. A hydraulic steering motor is operably connected to the input shaft to effect control input shaft rotation. Rotation of the hydraulic steering motor is selectively managed by a steering control valve attached to a cab-mounted windrower steering wheel or a proportional steering valve managed by the autoguidance system. A selector valve controls the active steering input. An emergency disengagement positions the selector valve to restore manual control by the steering wheel.

摘要翻译： 一种用于差速转向自走式农用起重机的液压转向系统的自动导向接口，通过调节控制输入轴来控制起落机速度和方向，以控制一对串联式液压驱动泵的输出，并提供动力 货轮 控制输入​​轴可旋转并可轴向移动。 液压转向马达可操作地连接到输入轴以实现控制输入轴旋转。 液压转向马达的旋转由附接到驾驶室安装的投料机方向盘或由自动导向系统管理的比例转向阀的转向控制阀选择性地管理。 选择阀控制主动转向输入。 紧急脱开定位选择阀，以恢复方向盘的手动控制。

公开(公告)号：US09096268B2

公开(公告)日：2015-08-04

申请号：US13905513

申请日：2013-05-30

申请人： CNH AMERICA, LLC

发明人： Todd B. Pierce ,  Philip J. Ehrhart

IPC分类号： B62D11/04 ,  B62D11/00

CPC分类号： B62D11/04 ,  B62D11/006

摘要： A mounting apparatus for positioning an actuator managing the pivotal position of rotatable pintel arms controlling the output of a pair of tandem-mounted hydraulic drive pumps providing motive power for an agricultural machine. The pumps are resiliently connected to the machine main frame, permitting relative movement to reduce vibration transmission to the main frame. A mounting bracket connected to the drive pumps provides a fixed connection for a first end of the actuator while the opposing second end is connected by an axially moveable linkage to the pintel arms. A common anchorage for the actuator and the pintel arms eliminates unintended pintel arm movement that occurs when anchoring the end of the actuator on the main frame.

摘要翻译： 一种用于定位执行器的安装装置，该致动器控制可枢转枢轴臂的枢转位置，控制一对串联安装的液压驱动泵的输出，为农业机器提供动力。 泵弹性地连接到机器主机架，允许相对运动以减少到主机架的振动传递。 连接到驱动泵的安装支架为致动器的第一端提供固定连接，而相对的第二端通过轴向可移动的连杆连接到砧座臂。 致动器和凸头臂的常见锚固件消除了在将执行器的端部锚定在主框架上时发生的意外的臼臂移动。

公开(公告)号：US08997902B2

公开(公告)日：2015-04-07

申请号：US13905521

申请日：2013-05-30

申请人： CNH America, LLC

发明人： Todd B. Pierce ,  Philip J. Ehrhart ,  Jeffrey Fay, II ,  Mark D. Layton

IPC分类号： B62D5/04 ,  B62D11/00

CPC分类号： B62D11/005 ,  B62D5/093 ,  B62D11/006 ,  B62D11/04 ,  Y10T477/10

摘要： A steering system for a differential steered self-propelled agricultural windrower, windrower speed and direction controlled by adjusting the pivotal position of rotatable pintel arms to control the output of a pair of tandem-mounted hydraulic drive pumps and provide motive power for the windrower. A control input shaft that is both rotatable and axially moveable manages the relative positioning of the pintel arms. A hydraulic steering motor is operably connected to the input shaft. Rotation of the hydraulic steering motor is managed by a steering control valve attached to a cab-mounted windrower steering wheel.

摘要翻译： 一种用于差速转向自行式农业自动上料机的转向系统，通过调节可旋转的叉形臂的枢转位置来控制起落架转速和方向，以控制一对串联式液压驱动泵的输出，并为货轮提供动力。 既可旋转又可轴向移动的控制输入轴可控制臼轴的相对定位。 液压转向马达可操作地连接到输入轴。 液压转向马达的旋转由附接到驾驶室安装的投料机方向盘的转向控制阀来管理。