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Judge imported bearing vibration and bearing temperature method of process knowledge characteristics - bearing

by:Waxing     2020-05-25
A, the vibration of the imported bearing imported bearing vibration is sensitive to import bearing damage, such as peeling, indentation, rust, crack and wear will be reflected in the imported bearing vibration measurement, therefore, through the use of special bearing vibration meter ( Frequency analyzer, etc. ) Can measure the size of the vibration, through frequency points cannot deduce the abnormal situation. Measured values of bearing or sensor installation position and different using conditions, thus requiring prior to each machine is analyzed by the measured value of the determined after judgment standard. Second, the temperature of the imported bearing import bearing temperature, usually have a bearing on the surface of the outdoor temperature can be predicted, if using the oil hole can directly measure the import bearing outer ring temperature, is more appropriate. Usually, the temperature of the imported bearing with bearing operation began to slowly rise, 1 - After 2 hours to reach steady state. Imported bearings of normal temperature due to the heat capacity of the machine, heat dissipating capacity, rotational speed and load. If the appropriate lubrication, installation department, the imported bearing temperature will rise sharply, appear unusually high temperature, must stop at this moment, take the necessary precautions. Using thermal device can monitor the import bearing operating temperature, and implement e. automatic alarm when the temperature exceeds or stop to prevent the shaft accidents. With high temperature often said bearing is in abnormal situation. High temperature is also harmful to import bearing lubricant. Sometimes overheated bearings can be classified to the bearing lubricant. If the bearing temperature for a long time even the transfer of more than 125 ℃ lower bearing life. The causes of high temperature import bearings include: lubrication inadequate or excessive lubrication, the lubricant. Contains impurities, heavy load, imported bearing damage of ring, clearance, high friction and oil seal and so on. So the continuity of import bearing temperature monitoring is necessary, whether measured bearing itself or other important parts. If it is on the basis of the operating conditions, the temperature change of any fault has occurred. Imported bearing temperature measurement can be regularly with the aid of thermometer, digital thermometer, for example, can accurate import bearing temperature measurement and display by ℃ or Fahrenheit units. The importance of imported bearings, means that when the damage cause of equipment downtime, so this type of bearings shall be equipped with best temperature probe. Under normal circumstances, the import bearings in just after the grease or lubricant will be a natural temperature rise and the last one or two days. Imported bearing production characteristics, determines its technological process has the following three characteristics: 1. Professional import bearing parts processing, a large number of imported bearing special equipment. Such as steel ball processing using grinding ball machine, grinding machine, etc. Professional characteristics also reflect on the import of bearing parts production, such as specializing in the production of steel ball steel ball company, specializing in the production of miniature imported bearing tiny imported bearing factory, etc. 2. Automated import bearing production specialization of production automation provides the conditions for it. In the production of a large number of using full automatic, semi-automatic and special machine tools for special purpose, application and production of automatic line gradually. Such as heat transfer machine and automatic line for assembling, etc. 3. Advanced as the mass size of import bearing production request, make the use of advanced machine tools, tooling and process possible. Nc machine tools, such as three jaw floating chuck and protective atmosphere heat treatment, etc.
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