基于铁谱分析系统的机床健康检测

Study on machine tools state tests based on ferrography analysis system

对某机床厂的龙门导轨磨床MMA52160A利用铁谱分析技术的油样进行定期检测,及时地掌握龙门导轨磨床的磨损状况。通过实验与分析发现,在检测时间段内导轨磨床内部存在着正常磨损、切削磨损、滚滑复合磨损磨粒以及铁的氧化物,在数量上以正常磨损居多,其它类型磨粒数量较少,可以判断导轨磨床仍处于正常运行状态。实验表明,铁谱分析技术可以对机床的运行状态进行预报故障;同时,可合理地确定机床的换油周期,节省油料,做到科学润滑,以延长龙门导轨磨床的使用寿命。

Due to wear between moving parts, wear particles are formed and would move into the lu- brication system. The occurrence of the oily particles would reflect the situation of equipment failure. Ferrography was employed to make regular checks of the oil samples of the gantry rail grinder MMA52160A in certain Machine Tool Plant to determine the wear state of the machine tool to avoid abnormal wear. Several types of wear particles exist in the system, which may originate from normal wear, cutting wear, sliding and rolling composite wears or iron oxidation. The normal wear particles take the majority, indicating that the grinder is still in the normal running state. The experiment resuits show that ferrography can be used to predict the failures of the machine tools, to properly determine the lubrication changing period to save oil, and to extend the working life of the gantry rail grinder.