The first is to identify and inspect the rolling bearing rolling sound, we can use the sound detector to check the size and sound quality of the rolling bearing. Because even with slight peeling and other injuries, rolling bearings can produce abnormal sounds and irregular sounds. Therefore, sound detectors can be used to distinguish and play an early preventive role.
Secondly, the vibration of the rolling bearing during operation is identified and checked. The vibration of the rolling bearing is very sensitive to damage to the bearing. For example, in the vibration measurement of rolling bearings, peeling, indentation, rust, cracks, and abrasion may occur. Therefore, the vibration can be measured by using special measurement of bearing vibration (frequency analyzer, etc.), and it is impossible to infer from abnormal conditions. frequency. The measured values are different due to the condition of the bearing or the position of the sensor. Therefore, it is necessary to analyze and compare the measured values of each machine in advance, and then determine the standard.
Finally check the temperature of the rolling bearing. The temperature of the rolling bearing can be inferred from the temperature outside the bearing. If the oil hole can directly measure the temperature of the outer ring of the bearing, it is more suitable.
In general, the temperature of the rolling bearing gradually increases and reaches a steady state after 1-2 hours. The normal temperature of the rolling bearing varies with the heat capacity, heat dissipation, speed and load. If the lubrication and installation are proper, the bearing temperature rises rapidly, and if abnormal temperature occurs, stop it and take necessary precautions. Since the temperature is affected by lubrication, speed, load and environment, the median in the table only represents the general temperature range. The heat detector can be used to monitor the working temperature of the bearing at any time, and automatically alarm or stop the occurrence of the burning shaft accident when the temperature exceeds the specified value.