METHOD AND APPARATUS FOR SEMIACTIVE REDUCTION OF PRESSURE OSCILLATIONS IN A HYDRAULIC SYSTEM
    1.
    发明申请
    METHOD AND APPARATUS FOR SEMIACTIVE REDUCTION OF PRESSURE OSCILLATIONS IN A HYDRAULIC SYSTEM 审中-公开
    用于液压系统中压力振荡的减小的方法和装置

    公开(公告)号:US20110302976A1

    公开(公告)日:2011-12-15

    申请号:US13132975

    申请日:2009-11-30

    IPC分类号: B21B37/00

    摘要: A method and an apparatus for semiactive reduction of pressure oscillations in a hydraulic system of a cold or hot rolling mill or strip handling installation for iron, steel or aluminum materials has the following method steps in the stated sequence:a) detection of a pressure signal by a pressure sensor by permanent measurement of a pressure in the hydraulic system; b) determination of an alternating component of the pressure signal; c) determination of at least one manipulated variable, which varies over time, in real time with the aid of a regulator, taking account of the alternating component; d) application of the manipulated variable to at least one actuator, with the actuator changing a natural frequency of an oscillation damper which is connected to the hydraulic system, and thus reducing an amplitude of the pressure oscillations in the hydraulic system.

    摘要翻译: 用于铁,钢或铝材料的冷轧或热轧机或钢带处理装置的液压系统中的半静态压缩振荡的方法和装置具有以下顺序的以下方法步骤:a)检测压力信号 通过永久测量液压系统中的压力的​​压力传感器; b)确定压力信号的交替分量; c)考虑到交变分量,确定在调节器的帮助下实时地随时间变化的至少一个操纵变量; d)将操作变量施加到至少一个致动器,其中致动器改变连接到液压系统的振动阻尼器的固有频率,并且因此减小液压系统中的压力振荡的幅度。

    ARRANGEMENT FOR BELT CONTROL
    2.
    发明申请
    ARRANGEMENT FOR BELT CONTROL 审中-公开
    安全带控制

    公开(公告)号:US20090134193A1

    公开(公告)日:2009-05-28

    申请号:US12275450

    申请日:2008-11-21

    IPC分类号: B65H23/10

    CPC分类号: D21F7/005

    摘要: An arrangement for handling a paper, cardboard, tissue or other fibrous-material web in a machine for producing and/or finishing the same, includes an endlessly circulating belt of high flexural rigidity which wraps around a rotatably mounted control roller with an angle of wrap, wherein at least one end of the control roller is displaceably mounted along an adjusting zone for setting the belt tension. The arrangement of the present invention provides an improved running of the belt and the lateral stress of the belt is minimized by the angle of wrap lying between 90° and 180° and the adjusting direction of the control roller lying approximately perpendicular to the bisector of the angle of wrap.

    摘要翻译: 用于处理用于生产和/或完成其的机器中的纸,纸板,纸巾或其它纤维材料纤维网的布置包括具有高抗弯刚度的循环循环带,其围绕可旋转地安装的控制辊以包裹角度 其中,所述控制辊的至少一个端部沿着调节区域可移动地安装以设定所述带张力。 本发明的布置提供了带的改进的运行,并且带的横向应力通过在90°和180°之间的卷绕角度最小化,并且控制辊的调节方向大致垂直于 包装角度

    METHOD AND DEVICE FOR ACTIVELY SUPPRESSING PRESSURE OSCILLATIONS IN A HYDRAULIC SYSTEM
    3.
    发明申请
    METHOD AND DEVICE FOR ACTIVELY SUPPRESSING PRESSURE OSCILLATIONS IN A HYDRAULIC SYSTEM 审中-公开
    用于动态地抑制液压系统中的压力振荡的方法和装置

    公开(公告)号:US20120000543A1

    公开(公告)日:2012-01-05

    申请号:US13132715

    申请日:2009-11-30

    IPC分类号: F17D3/00 F16L55/04

    摘要: In a method and a device for actively suppressing pressure oscillations or pressure pulses in a hydraulic system of a cold or warm roll train or a strip treatment installation, the following method steps are carried out: a) detection of a pressure signal by means of a pressure sensor by permanent measurement of a pressure in the hydraulic system; b) determination of an alternating component of the pressure signal; c) determination of at least one temporally changing actuating variable in real time with the aid of a regulator, taking at least one setpoint value and the alternating component into consideration; d) loading of at least one actuator with the actuating variable, the actuator changing a volume which corresponds to the actuating variable and is connected to the hydraulic system, as a result of which the pressure oscillations in the hydraulic system are suppressed.

    摘要翻译: 在用于主动抑制冷或热轧机组或钢带处理装置的液压系统中的压力振荡或压力脉冲的方法和装置中,执行以下方法步骤:a)通过以下步骤检测压力信号: 压力传感器通过永久测量液压系统中的压力; b)确定压力信号的交替分量; c)借助调节器实时确定至少一个暂时变化的致动变量,考虑至少一个设定点值和交替分量; d)至少一个致动器与致动变量的装载,致动器改变对应于致动变量并且连接到液压系统的体积,结果液压系统中的压力振荡被抑制。