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    Process and device for compensation of the effect of roll eccentricities
    1.
    发明授权
    Process and device for compensation of the effect of roll eccentricities 失效
    轧辊偏心效应的补偿过程和装置

    公开(公告)号：US4685063A

    公开(公告)日：1987-08-04

    申请号：US752407

    申请日：1985-07-05

    申请人： Georg Weihrich ,  Dietrich Wohld

    发明人： Georg Weihrich ,  Dietrich Wohld

    IPC分类号： B21B37/18 ,  B21B37/66 ,  G06F15/46 ,  B21B37/12

    CPC分类号： B21B37/66

    摘要： A process and device for compensation of the effect of roll eccentricities upon thickness regulation of material being rolled in a roll stand (1), wherein eccentricity oscillations are simulated by a model (6) based on measured values of roll adjustment position (s), roll force (F.sub.W) and mean support roll speed (n), together with spring constants (C.sub.G, C.sub.M) for the roll stand and the material. An output signal (.DELTA..sub.R) of the model (6) is used to modify the thickness value (h.sub.a +.DELTA.R) used for regulation, so as to compensate for the effect of roll eccentricity. The model may be implemented by a device (RECO) comprising pairs of oscillators (7), the phase and amplitude relationships of which are adjusted according to the observer principle.

    摘要翻译： 一种用于补偿辊偏心对在轧辊架（1）中被轧制的材料的厚度调节的影响的工艺和装置，其中基于辊调节位置的测量值由模型（6）模拟偏心振荡， 轧辊力（FW）和平均支撑辊速度（n）以及辊架和材料的弹簧常数（CG，CM）。 使用模型（6）的输出信号（DELTA R）来修改用于调节的厚度值（ha + DELTA R），以补偿辊偏心率的影响。 该模型可以由包括振荡器对（7）的设备（RECO）来实现，其相位和幅度关系根据观测器原理被调整。

    Rolling mill eccentricity compensation using measurement of sheet tension
    2.
    发明授权
    Rolling mill eccentricity compensation using measurement of sheet tension 失效
    轧机偏心补偿采用张力测量

    公开(公告)号：US4656854A

    公开(公告)日：1987-04-14

    申请号：US773295

    申请日：1985-09-06

    申请人： D. Fred Stewart ,  Dickon T. Oliver

    发明人： D. Fred Stewart ,  Dickon T. Oliver

    IPC分类号： B21B37/66 ,  B21B37/06

    CPC分类号： B21B37/66

    摘要： A method of eliminating thickness changes in material exiting a stand or stands of a rolling mill, the changes being caused by the eccentricity of one or more rolls of the mill. The method includes the steps of engaging the material with a device that measures the tension of the material entering or leaving the mill and using said device to measure directly a change in the tension of the material due to roll eccentricity. Samples of the change in tension are provided during the time required for a roll of the mill to make one revolution. The samples are then processed by characterizing them as frequency, magnitude and phase angle components of the change in tension. The components are then used in an update algorithm to provide a current estimate of a cyclically occurring change in tension. The current tension change is converted to an estimated thickness change, and processed in a manner that returns the same to a time-based value; the time-based value is used to correct for roll eccentricity by controlling the working gap of the mill in synchronism with currents of roll eccentricity such that the effects of eccentricity are offset.

    摘要翻译： 一种消除从轧机的立场或机架出来的材料的厚度变化的方法，该变化是由一个或多个轧机辊的偏心引起的。 该方法包括以下步骤：将材料与测量进入或离开研磨机的材料的张力的装置接合，并使用所述装置直接测量由于辊偏心引起的材料的张力变化。 张力变化的样品是在轧机辊一圈所需的时间内提供的。 然后通过将样品表征为频率，幅度和相角变化的张力分量进行处理。 然后在更新算法中使用这些组件来提供循环发生的张力变化的当前估计。 当前的张力变化被转换为估计的厚度变化，并且以使其返回到基于时间的值的方式进行处理; 基于时间的值用于通过与辊偏心度的电流同步地控制轧机的工作间隙来校正辊偏心度，使得偏心的影响被抵消。

    Rolling mill eccentricity compensation using actual measurement of exit sheet thickness
    3.
    发明授权
    Rolling mill eccentricity compensation using actual measurement of exit sheet thickness 失效
    轧机偏心补偿使用出口板厚度的实际测量

    公开(公告)号：US4648257A

    公开(公告)日：1987-03-10

    申请号：US771505

    申请日：1985-08-30

    申请人： Dickon T. Oliver ,  D. Fred Stewart

    发明人： Dickon T. Oliver ,  D. Fred Stewart

    IPC分类号： B21B37/66 ,  B21B37/02

    CPC分类号： B21B37/66

    摘要： A method of controlling a rolling mill in which eccentricity of one or more of the rolls of the mill ordinarily cause cyclic change in the thickness of the material exiting the mill. The method includes the steps of locating a device for measuring thickness downstream from the mill, and using the device to measure directly cyclic change in the thickness of the mill due to roll eccentricity. Samples of the cyclic change in thickness are provided during a time period defined by a revolution of at least one of the rolls. The samples are processed by characterizing them as frequency, magnitude and phase angle components of the change in thickness. These components are then directed to an update algorithm to provide a current estimate of the change in thickness. The delay between the occurrence of the change in thickness in the mill and the occurrence of the measurement of the change by the thickness measuring device is calculated and translated into a phase angle component. The current estimate of the phase angle is modified by the angle due to the delay in actual measurement of thickness such that the results of the step of measuring thickness are made coincident with the occurrence of the thickness change in the mill. The current estimate of thickness change is now processed in a manner that returns the estimate to time-based values; such values are then used to correct roll eccentricity by controlling the working gap of the mill in a manner that offsets the effects of roll eccentricity.

    摘要翻译： 一种控制轧机的一个或多个轧辊的偏心通常导致离开轧机的材料的厚度发生循环变化的轧机的方法。 该方法包括以下步骤：定位用于在轧机下游测量厚度的装置，并且使用该装置由于辊偏心度直接测量轧机厚度的循环变化。 在由至少一个辊的转速限定的时间段内提供厚度的循环变化的样品。 通过将样品表征为样品的厚度变化的频率，幅度和相位角分量进行处理。 然后将这些组件定向到更新算法以提供厚度变化的当前估计。 计算轧机厚度变化的发生与厚度测量装置的变化测量的发生之间的延迟并将其转换为相位角分量。 相位角的当前估计由于厚度的实际测量中的延迟而由角度改变，使得厚度测量步骤的结果与轧机中厚度变化的发生一致。 目前的厚度变化估计现在以将估计返回给基于时间的值的方式进行处理; 然后通过以抵消辊偏心率的影响的方式控制磨机的工作间隙来将这些值用于校正辊偏心度。

    Method of controlling roll eccentricity of rolling mill and apparatus for performing the same method
    4.
    发明授权
    Method of controlling roll eccentricity of rolling mill and apparatus for performing the same method 失效
    控制轧机的轧辊偏心率的方法及执行相同方法的装置

    公开(公告)号：US4299104A

    公开(公告)日：1981-11-10

    申请号：US123415

    申请日：1980-02-21

    申请人： Yasunobu Hayama ,  Kuniaki Tanouchi ,  Mitsuhiro Abe ,  Katsuhiro Ohkura

    发明人： Yasunobu Hayama ,  Kuniaki Tanouchi ,  Mitsuhiro Abe ,  Katsuhiro Ohkura

    IPC分类号： B21B37/18 ,  B21B37/66 ,  B21B37/08

    CPC分类号： B21B37/66

    摘要： A method of controlling roll eccentricity of a rolling mill is disclosed, in which a component of a rolling load variation which is due to eccentricities of an upper and a lower backup rolls of the rolling mill is obtained as a first eccentricity compensation signal by removing a rolling load variation component due to a variation of thickness of a material to be rolled from a rolling load variation occurred during the rolling operation, a rolling load variation value due to the roll eccentricity of the backup rolls is obtained from a rolling load variation occurred during rotations of work rolls which are in contact with each other under a load and is memorized as a second roll eccentricity compensation signal, a first signal is obtained by multiplying the first roll eccentricity compensation signal with a coefficient which is larger than 0 and smaller than 1, a second signal is obtained by multiplying the second roll eccentricity compensation signal with another coefficient which is larger than 0 and smaller than 1, and the first and second signals are added to obtain a roll eccentricity compensation signal for the rolling mill. An apparatus for performing the same method is also disclosed.

    摘要翻译： 公开了一种控制轧制机的轧辊偏心度的方法，其中通过将轧制机的上部和下部支承辊的偏心量作为第一偏心补偿信号获得的轧制负荷变化的分量被获得作为第一偏心补偿信号， 由于轧制过程中发生的轧制负荷变动导致的轧制材料的厚度变化导致的轧制负荷变化成分，由于支承辊的辊偏心导致的轧制负荷变动值， 在负载下彼此接触并被记忆为第二辊偏心补偿信号的工作辊的转动，通过将第一辊偏心补偿信号与大于0并小于1的系数相乘来获得第一信号 通过将第二辊偏心补偿信号与另一个系数相乘来获得第二信号 大于0且小于1，并且添加第一和第二信号以获得用于轧机的辊偏心补偿信号。 还公开了一种用于执行相同方法的装置。

    Thickness control system for a rolling mill
    5.
    发明授权
    Thickness control system for a rolling mill 失效
    轧机厚度控制系统

    公开(公告)号：US3928994A

    公开(公告)日：1975-12-30

    申请号：US51503074

    申请日：1974-10-15

    申请人： HITACHI LTD

    发明人： ICHIRYU KEN ,  SHIGETA MASAYUKI ,  NAKAMURA ICHIRO ,  KAJIWARA TOSHIYUKI

    IPC分类号： B21B37/18 ,  B21B37/66 ,  G05D5/02 ,  B21B37/00

    CPC分类号： B21B37/66

    摘要： A system for controlling strip thickness in a rolling mill in which the rolling pressure applied to material is continuously measured or the strip thickness on the output side is continuously detected as a parameter of the outgoing thickness of the rolled strip and the result of measurement or detection of the parameter is used to obtain an autocorrelation. The power spectra for the entire region and a predetermined region covered by the autocorrelation are produced, so that the ratio of roll eccentricity component to the entire variation is obtained from the ratio between the two spectra. The roll eccentricity component is applied to a feedback loop of the control system in order to eliminate the effect of the roll eccentricity component on the automatic thickness control system.

    摘要翻译： 作为轧制带的出口厚度的参数和测量或检测的结果，连续地测量连续测量施加到材料上的轧制压力或输出侧的带材厚度的轧制机中的带材厚度控制系统 的参数用于获得自相关。 产生整个区域和由自相关覆盖的预定区域的功率谱，从而根据两个光谱之间的比率获得辊偏心分量与整个变化的比值。 辊偏心组件被应用于控制系统的反馈回路，以消除辊偏心分量对自动厚度控制系统的影响。

    Roll eccentricity correction system and method
    6.
    发明授权
    Roll eccentricity correction system and method 失效
    辊偏心校正系统及方法

    公开(公告)号：US3882705A

    公开(公告)日：1975-05-13

    申请号：US44886974

    申请日：1974-03-07

    申请人： WESTINGHOUSE ELECTRIC CORP

    发明人： FOX RICHARD Q

    IPC分类号： B21B37/18 ,  B21B37/66 ,  G01B7/00 ,  G01B21/00 ,  B21B37/00

    CPC分类号： B21B37/66

    摘要： A control system and method are disclosed to operate with at least one roll stand of a rolling mill to measure and record the eccentricity of each back-up roll, to monitor the rotation of the back-up rolls during the rolling process, and to correct the roll force gauge control equation for the eccentricity of the rolls, as they rotate. This correction will remove the workpiece delivery gauge error induced directly by the eccentricity, and the gauge error induced by the improper response of the roll force gauge control equation to the eccentricity.

    摘要翻译： 公开了一种控制系统和方法，用于与轧机的至少一个辊架一起操作，以测量和记录每个支撑辊的偏心度，以监测轧制过程中后备辊的旋转，并校正 当辊旋转时，辊的偏心度的辊力计量控制方程式。 这种校正将消除由偏心率直接引起的工件输送量规误差，以及由辊力计量控制方程对偏心率的不当响应引起的量规误差。

    System to compensate for roll eccentricity effects and/or to simulate a mill with variable stretch characteristics
    7.
    发明授权
    System to compensate for roll eccentricity effects and/or to simulate a mill with variable stretch characteristics 失效
    补偿扭矩偏差效应的系统和/或模拟具有可变拉伸特性的铣刀

    公开(公告)号：US3793860A

    公开(公告)日：1974-02-26

    申请号：US3793860D

    申请日：1972-12-04

    申请人： WESTINGHOUSE ELECTRIC CORP

    发明人： SILVA A

    IPC分类号： B21B37/58 ,  B21B37/00 ,  B21B37/18 ,  B21B37/66 ,  B21B37/12

    CPC分类号： B21B37/66

    摘要： A rolling mill control system which, in one aspect, compensates for the effects of roll eccentricity during operation of the rolling mill. The control system includes circuitry which produces a control signal for rapid and accurate adjustments to hydraulic roll force actuators in a manner to prevent increases in the roll separating force. This circuitry further includes an outer gage control loop and/or tension control loop for automatic gage control of the rolling mill. According to another aspect of the disclosure, the control system simulates a rolling mill structure having variable spring constants whereby an operator may select a desired mode of rolling mill control. To simulate an infinitely stiff mill construction, the control system provides a control signal for rapid adjustments of the roll force actuators in a direction and by the exact amount to compensate for changes in the housing stretch. The control system simulates infinitely soft mill construction by rapid adjustments to the roll force actuator in a direction and by the exact amount to resist changes in the rolling force.

    摘要翻译： 一种轧机控制系统，其一方面补偿轧机运转期间辊偏心的影响。 控制系统包括产生控制信号的电路，以便以防止辊分离力增加的方式快速和精确地调整液压辊力致动器。 该电路还包括用于轧机自动量程控制的外部量规控制回路和/或张力控制回路。 根据本公开的另一方面，控制系统模拟具有可变弹簧常数的轧机结构，由此操作者可以选择期望的轧机控制模式。 为了模拟无限刚度的轧机结构，控制系统提供控制信号，用于在一个方向上快速调节轧辊力致动器的精度，以补偿壳体拉伸的变化。 控制系统通过在一个方向上迅速地调节轧辊力致动器，并以确切的数量来抵抗轧制力的变化来模拟无限制的轧机结构。

    Method for detecting eccentricity and phase angle of working or backing roll in rolling mill
    8.
    发明授权
    Method for detecting eccentricity and phase angle of working or backing roll in rolling mill 失效
    用于检测轧制机中工作或后辊的偏心和相角的方法

    公开(公告)号：US3709009A

    公开(公告)日：1973-01-09

    申请号：US3709009D

    申请日：1970-10-22

    申请人： ISHIKAWAJIMA HARIMA HEAVY IND

    发明人： SHIOZAKI H ,  TAKAHASHI N

    IPC分类号： B21B37/18 ,  B21B37/66 ,  B21C37/12 ,  B21C51/00 ,  B21B37/08

    CPC分类号： B21C37/12 ,  B21B37/66

    摘要： A method for detecting an eccentricity and phase angle (an angle formed between a predetermined point of a roll and a point at which the maximum eccentricity occurs) of a working or backing roll in a rolling mill without use of detectors directly attached to the peripheral surface of the roll is provided. The rolling pressure is sampled, quantized and fed into an arithmetic unit for calculating the eccentricity and phase angle of the roll based upon the following relations:

    摘要翻译： 一种用于检测在轧机中的工作辊或背衬辊的偏心率和相位角（在辊的预定点和最大偏心发生点之间形成的角度）的方法，而不使用直接附接到周面的检测器 提供卷。 根据以下关系，对轧制压力进行采样，量化并馈送到用于计算辊的偏心率和相位角的运算单元中：