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由于货车滚柱轴承会产生耗费大和难以预料的损坏,因此,一些铁路公司已在重要的调车场内或在其附近设立了低速运行列车监听站。在那里列车以低速运行,能取出显示有损伤的轴承的过量噪声图形和检查出可疑的轮对。发现有可达报废的缺陷高达99％,缺陷包括轴承圆锥内外圈滚道剥落、变形以及圆锥滚柱裂缝。文章内介绍了用声学技术辨别轴承零件缺陷的方法,并介绍结合红外线热轴探测与振动测量技术进行诊断的进展情况与方法。
Because of the costly and unpredictable damage to truck roller bearings, some railway companies have set up low-speed train monitoring stations in or near important shunting yards. Where the train is running at low speed, it can take out excess noise patterns showing damaged bearings and detect suspicious wheelsets. Found up to 99% of the defects can be scrapped, including defects in the inner and outer raceway bearing cone spalling, deformation and taper roller cracks. The article introduced the method of using acoustics to distinguish the defect of bearing parts, and introduced the progress and method of diagnosing with combination of infrared thermal axis detection and vibration measurement technology.