Bearing roll sound, oscillation, temperature, smooth condition, etc., the specific situation is as follows:
1. The rolling sound of the bearing shall be measured by a sound detector to check the size and sound quality of the rolling sound of the bearing in operation. Even if the bearing has slight rolling bearing peeling and other damages, abnormal sound and irregular sound will be announced, which can be distinguished by a sound detector.
Vibration of bearing
Bearing vibration is sensitive to bearing damage, for example, indentation, rust, crack and wear will be reflected in the bearing vibration measurement, so after using special bearing oscillation zhangs ephah profiler (frequency, etc.) can measure the oscillation of intrusive, through frequency analysis can't infer the mould of the specific conditions of the guide sleeve abnormal.The measured values are different due to the use conditions of the bearing or the orientation of the sensor device. Therefore, it is necessary to analyze and compare the measured values of each machine before determining the judging specifications.
Temperature of the bearing
Bearing temperature, generally bearing outdoor temperature can be speculated, if the use of oil hole can be directly measured bearing ring temperature, it is more appropriate.In general, the temperature of the bearing increases gradually with the beginning of the operation, 1-2 hours after the safe state.The normal temperature of the bearing varies with the heat capacity, heat loss, speed and load of the machine.If the oil bearing is smooth and the device is suitable, the bearing temperature will rise sharply and abnormal high temperature will appear. At this time, it is necessary to stop the operation and adopt necessary preventive measures.On the basis of many test data, table 4-1 lists the average temperature of the outer ring during bearing operation in various machinery for your reference.Because temperature is affected by smoothness, speed, load, and environment, the median indicates only the approximate temperature scale.The use of thermal sensors can be at any time to monitor the operating temperature of the bearing, and complete the temperature beyond the specified value of the active alarm or stop to prevent the ignition shaft accident.
Four, smooth
(1) the effect of smooth bearing
Smooth rolling bearing fatigue life and conflict, wear, temperature rise, oscillation and other important impact, no normal smooth, bearing can not work.Analysis of the reasons for bearing damage indicates that about 40% of bearing damage is related to poor smooth.Therefore, the outstanding smoothness of the bearing is a useful way to reduce the conflict and wear of the bearing.
In addition, the smooth bearing heat, rust, sealing, gentle impact and other effects...