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    • 124. 发明公开
    • Apparatus and method for detecting wheel-flats, axle bearings eccentricity and rail-track defects in a railway system
    • 装置和方法,用于检测在轮子上平点,在铁路系统在轴颈轴承和损坏Exzentrizitätten于轨道
    • EP1559625A1
    • 2005-08-03
    • EP04425060.3
    • 2004-02-02
    • C-Sigma s.r.l.
    • Ghislanzoni, Luca
    • B61K9/08B61K9/12B61L23/04G01M17/10
    • B61L23/045B61K9/08B61K9/12B61L2205/04G01M17/10
    • The apparatus measures the output signals of conventional toothed-wheel type rotational rate sensors, and it processes them in order to extract measurements of a "jitter parameter". In typical applications, a minimal amount of jitter noise is always present. However, jitter levels differing significantly from said background noise are indication of wheel-flats or rail-track defects, the former being correlated to the periodicity of a complete wheel revolution, and the latter to the vehicle's speed and inter-axle distances through the time delay measured between detections on separated axles. Furthermore, comparisons of "jitter parameter" measurements, recorded at different times, allow the monitoring of the evolution in time of bearings eccentricity and defects, a very useful preventive diagnostics feature. The apparatus can also be used in automotive and industrial machinery applications.
    • 该装置测量的常规齿轮型旋转率传感器的输出信号,并将其处理它们,以便提取一个“抖动参数”的测量结果。 在典型应用中,抖动噪声的最小量是总是存在的。 然而,抖动水平从所述背景噪声显着不同的是轮单位或铁路轨道的缺陷,前者被关联到一个完整的车轮转动的周期性,并通过时间后到的车辆的速度和轴间距离的指示 车轴上检测之间测量的延迟分开。 进一步的“抖动参数”的测量,记录在不同的时间,比较允许轴承偏心和缺陷的时间演变的监测,一个非常有用的预防诊断功能。 该装置可以因此在汽车和工业机械的应用中使用。