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公开(公告)号：US5406878A
公开(公告)日：1995-04-18
申请号：US237513
申请日：1994-05-03
CPC分类号： F01B3/108
摘要： Transmitting actuating forces from an actuator to a swashplate of an axial piston unit through a pin extending from a lever of the swashplate induces torsional stresses in the lever. The present invention overcomes this problem by securing a lever to a swashplate so that a distal end portion thereof extends into a slot of an actuator. The distal end portion has a cylindrical shaped surface pivotally seated in a mating socket formed in a slide block positioned within the actuator slot. The actuating forces transmitted from the actuator to the lever are thus transmitted in a straight line motion with minimal torsional stresses introduced into the lever.
摘要翻译： 通过从斜盘的杠杆延伸的销将致动力从致动器传递到轴向活塞单元的旋转斜盘，引起杠杆中的扭转应力。 本发明通过将杠杆固定到斜盘来克服这个问题，使得其远端部分延伸到致动器的狭槽中。 远端部分具有一个圆柱形的表面，该圆柱形的表面枢转地安置在形成在位于致动器狭槽内的滑块中的配合插座中。 因此，从致动器传递到杠杆的致动力以直线运动传递，并且引入到杠杆中的扭转应力最小。
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公开(公告)号：US5007805A
公开(公告)日：1991-04-16
申请号：US548808
申请日：1990-07-02
申请人： James C. Goade , Claude H. Werner
发明人： James C. Goade , Claude H. Werner
摘要： Reversible, variable displacement, hydraulic devices are useful in transmitting power from an engine to a driven device. The hydraulic components of such devices are generally quite bulky and difficulty to center to swash plate thereof. The subject device includes a pair of servo valves adjustably disposed within a case for individually controlling the flow of actuating fluid to and from a pair of hydraulic servo actuators. A servo feedback mechanism is provided to mechanically move a valve spool of one of the servo valves to a position for exhausting fluid from one of the servo actuators as the spool of the other servo valve is moved to a position for directing actuating fluid to the other of the servo actuators. The feedback mechanism also moves the spools substantially to their neutral position when a swash plate controlled by the servo actuators reaches a desired angular position after the other spool is first moved to the position for directing actuating fluid to the other servo actuator. The feedback mechanism is compact and cooperates with the adjustability of the servo valves so that centering of the swash plate is simplified.
摘要翻译： 可逆的，可变排量的液压装置可用于将动力从发动机传递到被驱动装置。 这种装置的液压部件通常是非常庞大的，并且难以使其中心到其斜盘。 主体装置包括可调节地设置在壳体内的一对伺服阀，用于单独地控制致动流体流向和来自一对液压伺服致动器的流动。 提供伺服反馈机构以将伺服阀中的一个的阀芯机械地移动到用于从其中一个伺服致动器排出流体的位置，因为另一个伺服阀的阀芯移动到用于将致动流体引导到另一个的位置 的伺服执行器。 当另一个卷轴首先移动到用于将致动流体引导到另一伺服致动器的位置之后，当由伺服致动器控制的斜盘达到期望的角度位置时，反馈机构还将线轴基本上移动到其中立位置。 反馈机构紧凑，与伺服阀的可调性配合，使旋转斜盘的定中心得以简化。
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公开(公告)号：US5383391A
公开(公告)日：1995-01-24
申请号：US210487
申请日：1994-03-21
申请人： James C. Goade , Claude H. Werner
发明人： James C. Goade , Claude H. Werner
CPC分类号： F16C19/502 , F01B3/00 , F01B3/0073 , F04B1/2085 , F16C33/306 , F16H23/02 , F05C2201/0478 , Y10T74/18336
摘要： Arcuate bearings are useful, for example, in pivotally supporting a cradle swashplate of axial piston variable displacement hydraulic devices. The bearings of known hydraulic devices have either been a pair of laterally spaced roller bearings assembly or a pair of laterally spaced sleeve bearings. The subject hydraulic device includes a roller bearing assembly positioned between the swashplate and the housing at the side of the swashplate subjected to high loads and a less expensive sleeve bearing positioned between the swashplate and the housing at the other side of the swashplate subjected to low loads. By using this combination of bearings, the overall cost of the hydraulic device is reduced without impairing the operation of the hydraulic device.
摘要翻译： 弧形轴承是有用的，例如，枢转地支撑轴向活塞可变排量液压装置的摇篮斜盘。 已知液压装置的轴承或者是一对横向间隔开的滚子轴承组件或一对侧向间隔开的套筒轴承。 主体液压装置包括一个滚子轴承组件，该滚子轴承组件位于旋转斜盘和壳体之间的斜盘受到高负荷的一侧，而较便宜的套筒轴承位于旋转斜盘和外壳之间，在斜盘受到低负荷的另一侧 。 通过使用这种轴承的组合，液压装置的总体成本降低，而不损害液压装置的操作。
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