The inspection items in operation include the rolling sound, vibration, temperature, and lubrication status of KOYO bearings. The details are as follows:
First, the rolling sound of KOYO bearings
The sounder is used to check the size and sound quality of the rolling sound of the KOYO bearing in operation. Even if there is slight peeling damage, the KOYO bearing will emit abnormal sounds and irregular sounds, which can be distinguished by the sounder.
Second, the vibration of KOYO bearings
KOYO bearing vibration is very sensitive to damage of KOYO bearings. For example, peeling, indentation, rust, cracks, wear, etc. are reflected in the KOYO bearing vibration measurement. Therefore, by using a special KOYO bearing vibration measuring device (frequency analyzer, etc.) The magnitude of the vibration can be measured, and the specific situation of the abnormality cannot be inferred by the frequency division. The measured value differs depending on the use conditions of the KOYO bearing or the sensor mounting position. Therefore, it is necessary to analyze and compare the measured values ​​of each machine in advance to determine the judgment standard.
Third, the temperature of KOYO bearings
The temperature of the KOYO bearing is generally estimated by the temperature outside the KOYO bearing. If the oil hole can directly measure the temperature of the KOYO bearing outer ring, it is more suitable. Usually, the temperature of the KOYO bearing rises slowly as the operation starts, and reaches a steady state after 1-2 hours. The normal temperature of KOYO bearings varies with the heat capacity, heat dissipation, speed and load of the machine. If the lubrication and installation parts are suitable, the KOYO bearing temperature will rise sharply and abnormal temperature will occur. At this time, it is necessary to stop the operation and take necessary precautions. Based on a large amount of test data, Table 4-1 lists the average value of the outer ring temperature during operation of KOYO bearings in various machines for reference. Since the temperature is affected by lubrication, speed, load, and environment, the values ​​in the table only indicate the approximate temperature range. The thermal sensor can be used to monitor the working temperature of the KOYO bearing at any time, and automatically alarm the household when the temperature exceeds the specified value or stop the occurrence of the burning shaft accident. Add the security engineer site to your favorites
Goji Berry Seeds,Goji Berry Plant ,Goji Berry Tea ,Goji Berry Extract
Dried Fruit,Herbal Extract Co., Ltd. , http://www.nbgoji.com