The phenomenon that the size or shape of ina stainless steel bearing or component changes due to stress is called deformation. The mechanical equipment on the production site often overloads due to poor working conditions, and the deformation of some bearings is very common.
Their deformation will accelerate the wear and even fracture of other relevant parts, and may also lead to the damage of system series bearings or the damage of the whole equipment, resulting in equipment accidents, so the harm of deformation is quite serious.
Maintenance Countermeasures for Deformation of ina Stainless Steel Bearing
The deformation of ina stainless steel bearing when the action stress is less than the yield strength of the material is called elastic deformation. Plastic deformation, also known as permanent deformation, refers to the deformation of bearing parts that cannot be recovered after the external force (load) is removed.
Excessive deformation is an important type of mechanical equipment failure.Maintenance Countermeasures for Deformation of ina Stainless Steel Bearing
1. Use reasonable cooling methods:Maintenance Countermeasures for Deformation of ina Stainless Steel Bearing
The influence of cooling process on deformation after metal quenching is also a very important deformation reason. The deformation of hot oil quenching is smaller than that of cold oil quenching, which is generally controlled at 100 ± 20 ℃. The cooling capacity of oil is also crucial to deformation.
The stirring mode and speed of quenching affect the deformation. The faster the cooling speed of metal heat treatment, the more uneven the cooling, the greater the stress, and the greater the shape of ina stainless steel bearing of the die.Maintenance Countermeasures for Deformation of ina Stainless Steel Bearing
2. Use appropriate media:Maintenance Countermeasures for Deformation of ina Stainless Steel Bearing
On the premise of ensuring the same hardness requirements, try to use oily medium. Experiments and practice have proved that on the premise of no difference in other conditions, the cooling speed of oily medium is slower, while that of aqueous medium is relatively faster.
3. The structure of parts shall be reasonable:Maintenance Countermeasures for Deformation of ina Stainless Steel Bearing
After metal heat treatment, in the cooling process, the thin part always cools fast and the thick part cools slowly.
Maintenance Countermeasures for Deformation of ina Stainless Steel Bearing
The vibration measurement of ina stainless steel bearing shows that the damage of bearing vibration to bearing is very serious.
Therefore, through the adoption of extraordinary bearing vibration measuring instrument (frequency analyzer, etc.), the magnitude of vibration can be measured, and the incomparable specific situation can be measured through frequency division.
Because the measured values are different due to the service conditions of the bearing or the installation position of the sensor, it is necessary to analyze and compare the measured values of each machine in advance to determine the scale.
Generally, the temperature of the British bearing starts to rise slowly with the operation of the bearing, and reaches a stable state after 1-2 hours.
The normal temperature of fag bearing varies with the heat capacity, heat dissipation, speed and load of the machine. If the lubrication and installation are not appropriate, the bearing temperature will rise sharply and abnormal high temperature will occur.
At this time, the operation must be stopped and necessary preventive measures must be taken.
Using the thermal sensor, the working temperature of the British bearing can be monitored at any time, and the automatic alarm or stop when the temperature exceeds the specified value can be realized to prevent the occurrence of fuel shaft accidents.
High temperature often indicates that the bearing is in an abnormal condition. High temperature is also harmful to the lubricant of the bearing.
Sometimes fag bearing overheating can be attributed to the lubricant of the bearing. If the temperature of British bearings exceeds 125 ℃ for a long time, the service life of bearings will be reduced.
The causes of high temperature bearings include insufficient or excessive lubrication and lubricant. The oil seal contains excessive clearance, insufficient friction, etc.
Therefore, it is necessary to continuously monitor the temperature of British bearing, whether measuring fag bearing itself or other important parts. If the operating conditions remain unchanged, any temperature change can indicate that a fault has occurred.
The periodic measurement of bearing temperature can be aided by thermometer, such as bearing digital thermometer, which can accurately measure fag bearing temperature and display it in ℃ or Fahrenheit.
The important English bearing means that when it is damaged, it will cause the shutdown of the equipment. Therefore, this kind of fag bearing should be equipped with temperature detector.
Under normal circumstances, British bearings will have a natural temperature rise after just lubrication or re lubrication and last for one or two days.
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