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The damage of cement machinery EDA linear bearing is common, because the cement manufacturing tend to these mechanical equipment wear big. How to gain a better understanding of the vulnerable part better carry out is what we concern production! EDA linear bearing machinery and equipment belonging to the vulnerable part, its running state is good or not directly affect the performance of the whole machine. Cement machinery and equipment, by the early fault of rolling SKFEDA linear bearings, causing device failure of many examples. Therefore, to find out the root causes of failure, to take remedial measures, eliminate the fault, is the key to improve the operation rate of the system.
A, overheating. Roller raceway, steel ball or the holder to change color, show that EDA linear bearing overheating. A rise in temperature will make the lubricant is reduced, the oil is not easy to form or disappear completely. The solution is the full heat, the additional cooling. B, overload. Serious surface flaking and wear, show that the EDA linear bearing early fatigue due to overload of failure (in addition to tie too tight will cause a certain amount of fatigue).
Overload can cause EDA linear ball bearing raceway, severe wear surface spalling and sometimes accompanied by overheating. Overload can cause EDA linear ball bearing raceway, severe wear surface spalling and sometimes accompanied by overheating. Remedy is to reduce EDA linear bearing load or improve load ability of EDA linear bearing. C, low load vibration inhibition.
In the axial position of each ball oval signs of wear, this shows that when the EDA linear bearing does not work and does not produce a lubricating oil film, by external vibration or vibration caused by excessive low load failure. In the axial position of each ball oval signs of wear, this shows that when the EDA linear bearing does not work and does not produce a lubricating oil film, by external vibration or vibration caused by excessive low load failure. The remedy is to make EDA linear bearing vibration or adding antiwear additives in grease EDA bearings in a straight line in the.
Analysis of EDA linear bearing damage form analysis and remedy of B, EDA linear bearing vibration
The typical mode of EDA linear bearing failure is the rolling contact fatigue spalling of pure. The peeling, peeling off the surface area of about 2mm, depth of 0.2mm ~ 0.3mm can be determined by detecting the vibration monitor. Spalling may occur, the raceway surface, outer race or the rolling body. Among them, the inner race due to high contact stress, rupture occurred frequently.
Used in all kinds of diagnosis technology of EDA linear bearing, vibration monitoring method is still one of the most important. Overall, the time domain analysis method is relatively simple, suitable for small occasions interference to noise, is a good way to simple diagnosis; diagnostic method in frequency domain, the resonance demodulation method is the most mature and reliable, precise diagnosis for EDA linear bearing fault; time frequency analysis method and resonance demodulation method is similar, can correctly describe a time and frequency the feature of fault signal, is more superiority.