异步电动机球轴承的状态维修与剩余寿命预估

The State Repairing and Remnant Life Forecasting of the Ball Bearings in the Induct Motor

本文通过在计算机上用作图的方法，对大量轴承故障等级发展现场数据的分析，建立了球轴承故障等级Ａ＿（ｄＢ）发展的随机过程数学模型；研究该随机过程的均值函数和均方差函数，提出了电动机球轴承剩余寿命预估的方差曲线的近似折线法；以及均值曲线趋势外推法，实际应用证明，这两种方法均可用于预估球轴承利余使用寿命。这种剩余寿命预估的技术用于工厂设备维护，具有较大的经济价值。

This paper builds up a stochastic process hitch degree and studies thevariance function and the mean function by processing a graphic analysis of the largenumber of spot date on computers,then provides the approximation broken line methodfor the variance curve of the remnant life forecast and the extrapolation method for thetrend mean curve. Both the methods can be used for forecasting the remnsnt life of theball bearings. It has very large economic value that this kinds of remnant life forecastmethods are used in equipment maintain in factoried.