METHOD AND DEVICE FOR ADAPTIVELY CONTROLLING A HYDRAULIC PRESS
    82.
    发明申请
    METHOD AND DEVICE FOR ADAPTIVELY CONTROLLING A HYDRAULIC PRESS 审中-公开
    适用于液压压力的方法和装置

    公开(公告)号:US20150158262A1

    公开(公告)日:2015-06-11

    申请号:US14399856

    申请日:2013-05-07

    IPC分类号: B30B15/16 F15B11/064

    摘要: A method and apparatus for adaptively controlling a hydraulic press comprising a hydraulic drive unit for lifting and lowering a press ram. A piston chamber of the drive unit can be connected to a hydraulic accumulator formed by at least two groups of storage bottles, the connection established by hydraulic pipes that allows an expandable volume, stored in the storage bottles to supply the energy required for the press to perform a working stroke. Different filling pressures can be established in the storage bottles. A hydraulic accumulator can be adjusted to three operating modes, allowing a press controller to automatically analyze utilization and accordingly block individual groups or compartments of storage bottles, transfer the gas between storage bottles during a charging process at the end of the cycle, or adjust individual groups of storage bottles to different pressure levels. Advantageously, these three scenarios entail no waiting or transfer time.

    摘要翻译: 一种用于自动控制液压机的方法和装置,包括用于提升和降低压力机压头的液压驱动单元。 驱动单元的活塞室可以连接到由至少两组储存瓶形成的液压蓄能器,所述液压蓄能器由液压管道建立,所述液压管路允许存储在储存瓶中的可膨胀体积将压力机所需的能量提供给 执行工作中风。 可以在储存瓶中建立不同的灌装压力。 液压蓄能器可以调整到三种操作模式,允许压力控制器自动分析利用率,从而阻止储存瓶的各个组或隔间,在循环结束时在充电过程中将气体转移到储存瓶之间,或者调整个体 一组储存瓶到不同的压力水平。 有利地,这三种情况不需要等待或转移时间。

    Fluid control system for steerable agricultural implement
    86.
    发明授权
    Fluid control system for steerable agricultural implement 有权
    用于可转向农具的流体控制系统

    公开(公告)号:US08640785B2

    公开(公告)日:2014-02-04

    申请号:US12825778

    申请日:2010-06-29

    IPC分类号: A01B69/00

    摘要: An agricultural implement system is provided that includes a valve in fluid communication with first and second actuating cylinders and with first and second fluid conduits. The valve is configured to control fluid flow from the first and second fluid conduits to the first and second actuating cylinders. Furthermore, a controller is communicatively coupled to first and second pressure sensors and to the valve. The first pressure sensor is coupled to the first fluid conduit, and the second pressure sensor is coupled to the second fluid conduit. The controller is configured to determine whether the first fluid conduit or the second fluid conduit is supplying fluid to the valve based on signals from the first and second pressure sensors, and to automatically control fluid flow to the first and second actuating cylinders such that wheel assemblies are rotated to a desired angle relative to an implement frame.

    摘要翻译: 提供了一种农业工具系统,其包括与第一和第二致动缸流体连通并与第一和第二流体管道流体连通的阀。 阀构造成控制从第一和第二流体管道到第一和第二致动缸的流体流动。 此外,控制器通信地耦合到第一和第二压力传感器和阀。 第一压力传感器联接到第一流体导管,并且第二压力传感器联接到第二流体导管。 控制器被配置为基于来自第一和第二压力传感器的信号来确定第一流体导管或第二流体导管是否向阀提供流体,并且自动控制流体流到第一和第二致动缸,使得轮组件 相对于工具框架旋转到期望的角度。

    Hydraulic drive, in particular for machine tools, and method for controlling the hydraulic drive
    88.
    发明授权
    Hydraulic drive, in particular for machine tools, and method for controlling the hydraulic drive 有权
    液压驱动,特别是机床,以及液压驱动控制方法

    公开(公告)号:US08549983B2

    公开(公告)日:2013-10-08

    申请号:US12450545

    申请日:2008-05-31

    申请人: Bert Brahmer

    发明人: Bert Brahmer

    IPC分类号: F15B11/044 B30B15/16

    摘要: Provided is a hydraulic drive including a double-acting work cylinder with a piston having a first working surface effective in a retracting direction and a second working surface effective in an extending direction, wherein the first working surface delimits a first pressure chamber and the second working surface delimits a second pressure chamber, at least two different pressures being applicable to at least one of the first working surface and the second working surface for retracting or extending the piston into and out of the work cylinder, an actuator unit which optionally enables a throttled return flow of a hydraulic medium from the first pressure chamber delimited by the first working surface, and control means for triggering the actuator unit in such a way prior to a sudden acceleration of the piston due to a sudden force release.

    摘要翻译: 本发明提供一种液压驱动装置,其特征在于,具备具有活塞的双作用工作缸,所述活塞具有在回缩方向上有效的第一工作面和沿着延伸方向有效的第二工作面,所述第一工作面限定第一压力室, 表面限定第二压力室,至少两个不同的压力可应用于第一工作表面和第二工作表面中的至少一个,用于将活塞缩回或延伸到工作缸中或从工作缸中延伸;致动器单元,其可选地使得节流阀 来自由第一工作表面界定的第一压力室的液压介质的回流;以及用于在由于突然的力释放引起活塞突然加速之前以这种方式触发致动器单元的控制装置。

    HYDRAULIC SYSTEM
    90.
    发明申请
    HYDRAULIC SYSTEM 有权
    液压系统

    公开(公告)号:US20130098018A1

    公开(公告)日:2013-04-25

    申请号:US13278939

    申请日:2011-10-21

    IPC分类号: F15B11/17

    摘要: A hydraulic system includes a variable displacement first pump, a first linear actuator fluidly connected to the first pump via a first closed-loop circuit, a variable displacement second pump, and second and third linear actuators fluidly connected to the second pump in parallel via a second closed-loop circuit. The system also includes a variable displacement third pump, a fourth linear actuator fluidly connected to the third pump via a third closed-loop circuit, a variable displacement fourth pump, and a first rotary actuator fluidly connected to the fourth pump via a fourth closed-loop circuit. The system further includes a second rotary actuator fluidly connected to the second pump in parallel with the second and third linear actuators. The system also includes a third rotary actuator fluidly connected to the third pump in parallel with the fourth linear actuator.

    摘要翻译: 液压系统包括可变排量的第一泵,经由第一闭环回路流体地连接到第一泵的第一线性致动器,可变排量的第二泵,以及通过一个第二泵并联连接到第二泵的第二和第三线性致动器 第二闭环电路。 该系统还包括可变排量第三泵,经由第三闭环回路流体连接到第三泵的第四线性致动器,可变排量第四泵和经由第四闭合回路流体连接到第四泵的第一旋转致动器。 回路电路。 该系统还包括与第二和第三线性致动器平行地流体连接到第二泵的第二旋转致动器。 该系统还包括与第四线性致动器平行地流体连接到第三泵的第三旋转致动器。