公开(公告)号：US4910985A

公开(公告)日：1990-03-27

申请号：US70298

申请日：1987-07-06

Applicant: Jacobus Ballyns

Inventor： Jacobus Ballyns

IPC: B21B37/18 ,  B21B37/66

CPC classification number: B21B37/66

Abstract: The invention provides a new apparatus for the detection, measurement and display of roll and roll bearing eccentricity in a rolling mill, and also an apparatus for correction of such eccentricities. The apparatus comprises individual narrow band-pass filter modules, each dedicated to the detection and development of a signal corresponding to one eccentricity, such as fundamental back-up roll eccentricity, fundamental work roll eccentricity and fundamental bearing eccentricity, or any individual harmonics of the fundamentals that are of sufficient value to merit display and corrective action. The resultant signals from the different modules are summed and applied to a display, or employed to take corrective action. Such dedicated modules can be made relatively cheaply and are stable requiring little maintenance, as compared to the more complex equipment proposed hitherto, requiring shaft encoders and/or high speed computers. Preferably each filter module comprises a first frequency controllable phase locked narrow band filter which removes as much as possible of the extraneous "noise" of the rolling pressure signal, and a second matched filter which is able to operate rapidly with the cleaner signal provided to it by the first filter.

Abstract translation: 本发明提供了一种用于在轧机中检测，测量和显示滚动轴承偏心的新装置，以及用于校正这种偏心的装置。 该装置包括单独的窄带通滤波器模块，每个窄带通滤波器模块专用于检测和开发对应于一个偏心的信号，例如基本的后备辊偏心率，基本工作辊偏心率和基本轴承偏心率，或者任何单个谐波 具有足够价值以显示和纠正行动的基本原理。 将来自不同模块的合成信号求和并应用于显示器，或用于采取纠正措施。 与迄今为止提出的要求轴编码器和/或高速计算机的更复杂的设备相比，这样的专用模块可以相对廉价地制造并且稳定性需要很少的维护。 每个过滤器模块优选地包括第一频率可控的相位锁定窄带滤波器，该滤波器尽可能地去除轧制压力信号的无关的“噪声”，以及第二匹配滤波器，其能够用提供给它的更清洁信号快速地操作 通过第一个过滤器。