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    Method and apparatus to provide dynamic ultrasonic measurement of rolling element bearing parameters
    4.
    发明授权
    Method and apparatus to provide dynamic ultrasonic measurement of rolling element bearing parameters 失效
    提供动态超声波测量滚动体轴承参数的方法和装置

    公开(公告)号：US06571632B1

    公开(公告)日：2003-06-03

    申请号：US09573644

    申请日：2000-05-18

    申请人： Richard W. Browner ,  Richard L. Lemoine ,  Mark I. Jurras, III ,  David Nguyen ,  Robert Domnitz ,  Alan Robert Selfridge

    发明人： Richard W. Browner ,  Richard L. Lemoine ,  Mark I. Jurras, III ,  David Nguyen ,  Robert Domnitz ,  Alan Robert Selfridge

    IPC分类号： G01M1304

    CPC分类号： G01L5/0009 ,  F16C19/52 ,  G01M13/04 ,  G01N2291/02845

    摘要： An acoustic signal unit comprises a signal generation unit to generate a first electrical signal, a first transducer to generate an acoustic signal in response to the first electrical signal, and a second transducer to generate a second electrical signal in response to the received acoustic signal. A calculation unit is provided to compare the first and second electrical signals to determine the time of flight of the acoustic signal, wherein the time of flight corresponds to the stress in the rolling element bearing. The stress may be calculated according to a formula or by multiplying an acoustic time constant for the rolling element bearing by the distance traveled by the acoustic signal across the rolling element bearing, and by the time of flight determined by said comparison unit.

    摘要翻译： 声信号单元包括产生第一电信号的信号产生单元，响应于第一电信号产生声信号的第一换能器，以及响应于所接收的声信号产生第二电信号的第二换能器。 提供计算单元以比较第一和第二电信号以确定声信号的飞行时间，其中飞行时间对应于滚动元件轴承中的应力。 可以根据公式计算应力，或者通过将滚动元件轴承的声学时间常数乘以由声学信号穿过滚动元件轴承所经过的距离乘以由所述比较单元确定的飞行时间来计算。

    Imbedded bearing life and load monitor
    5.
    发明授权
    Imbedded bearing life and load monitor 有权
    嵌入式轴承寿命和负载监控

    公开(公告)号：US5952587A

    公开(公告)日：1999-09-14

    申请号：US130332

    申请日：1998-08-06

    申请人： John H. Rhodes ,  Richard L. Lemoine ,  Richard W. Browner ,  Mark A. Fuller ,  Mark I. Jurras, III ,  David Nguyen

    发明人： John H. Rhodes ,  Richard L. Lemoine ,  Richard W. Browner ,  Mark A. Fuller ,  Mark I. Jurras, III ,  David Nguyen

    IPC分类号： F16C19/52 ,  G01L5/00 ,  G01M13/04 ,  G01L1/00

    CPC分类号： G01M13/04 ,  F16C19/364 ,  F16C19/522 ,  G01L5/0019

    摘要： A system senses real-time rolling element loads in a rolling element bearing having a plurality of rolling elements disposed between an inner race and an outer race. A plurality of sensors are disposed about one of the inner race and the outer race of the bearing to output sensor data corresponding to detected loads. A control unit predicts bearing life from the sensor data and determines a load zone of the bearing in real time from the sensor data. Before operation of the system in real-time, the sensors are calibrated to model a relationship of roller load and measured strain. The bearing is then rotated and sensor data is output from each the sensors. The sensor data is cyclical, and peaks and valleys are extracted from the sensor data to determine rolling element loads and measured bearing speed. Load components from a plurality of bearings are then summed to obtain total applied system load in real time.

    摘要翻译： 一种系统感测具有设置在内座圈和外座圈之间的多个滚动元件的滚动元件轴承中的实时滚动元件负载。 多个传感器围绕轴承的内圈和外圈中的一个设置，以输出对应于检测到的负载的传感器数据。 控制单元从传感器数据预测轴承寿命，并从传感器数据实时确定轴承的载荷区域。 在系统实时操作之前，传感器被校准以建立滚子负载和测量应变的关系。 然后旋转轴承，并从每个传感器输出传感器数据。 传感器数据是循环的，从传感器数据中提取峰谷，以确定滚动体载荷和测量的轴承速度。 然后将来自多个轴承的负载组件相加以实时获得总应用系统负载。