If there is crack, indentation or corrosion on the rolling surface of INA Bearing, periodic vibration and noise like riveting rivets will occur. Its cycle can be fixed, but most of them have an inevitable corresponding relationship with the speed.
The scars will continue to occur on the channel, and the scars will appear on the steel ball from time to time, and this noise will change with the device and smooth premise.Ina plastic bearing noise detection method
Ina plastic bearing noise detection method
The control methods of this kind of noise are as follows: do not knock the bearing when installing the device, and avoid the inclination of INA Bearing when assembling the plastic bearing with the shaft and then installing it into the bearing seat; Avoid bearing corrosion during storage and impact vibration during transportation; Use smooth grease with high viscosity.
There are dust and other foreign matters in the rolling bearing, which will produce aperiodic vibration and so-called dust sound. The magnitude of vibration and noise is uncertain, and there is or no.
The control methods of dust noise include: improving the cleaning methods of bearings, and strictly clearing the bearings, shafts, seat holes and matching parts before the device; Remove foreign matters in the smoothing agent; Improve the sealing of plastic bearings; Prevent the use of plastic holders with impure data or embedded foreign matters.
Incorrect lubricant selection, lack of lubricant or aging hardening can lead to vibration and noise of INA Bearing, and there is no necessary rule for this kind of noise. For this situation, as long as the appropriate smoothing agent is selected, the smoothing dose is adjusted, the service life of the smoothing agent is extended, and the replacement cycle is reasonably determined.Ina plastic bearing noise detection method
Check the vibration of INA Bearing during operation. The peeling, indentation, corrosion, crack, wear, etc. will be reflected in the vibration measurement of bearing. The bearing vibration is very sensitive to the damage of plastic bearing. Therefore, the vibration can be measured by using special bearing vibration measuring instrument (frequency analyzer, etc.), and the specific abnormal situation can not be inferred by 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 its judgment standard.Ina plastic bearing noise detection method
Second, check the sound of INA Bearing during rolling. Even if the bearing has slight peeling and other damage, it will produce abnormal sound and irregular sound. Therefore, the sound detector can be used to distinguish. The sound detector is used to check the size and sound quality of the rolling sound of plastic bearing in operation, which plays a role of prevention in advance.Ina plastic bearing noise detection method
Third, check the temperature of INA Bearing during rotation. If the oil hole can directly measure the temperature of bearing outer ring, it is more appropriate. In general, the temperature of the bearing can be inferred from the temperature outside the plastic bearing chamber.
If the lubrication and installation parts are 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.Ina plastic bearing noise detection method
Service environment of bearing: select the specification, size and accuracy according to the service position, service conditions and environmental conditions, and cooperate with appropriate bearing is the premise to ensure the service life and reliability of INA Bearing.Ina plastic bearing noise detection method
Application position: INA Bearing is suitable for bearing the combined radial and axial load dominated by radial load. It is usually used in pairs with two sets of bearings. It is mainly used in the transmission parts such as front and rear hubs, driving bevel gears, differential, reducer and so on.Ina plastic bearing noise detection method
Allowable speed: under the condition of correct installation and good lubrication, the allowable speed is 0.3-0.5 times of the limit speed of stainless steel bearing. Under normal conditions, it is appropriate to use 0.2 times of the limit speed.
Allowable inclination angle: tapered roller bearings generally do not allow the shaft to be inclined relative to the shell hole. If there is an inclination, the inclination shall not exceed 2 ‘.Ina plastic bearing noise detection method
Allowable temperature: under the condition of normal load, high temperature resistance of lubricant and sufficient lubrication, INA Bearing is generally allowed to work at the ambient temperature of – 30 ℃ – 150 ℃.Ina plastic bearing noise detection method
How to ensure the normal operation of the bearing in the application process, how to make the stainless steel bearing undamaged and make the bearing life longer. Now let me explain to you the precautions for ensuring the reliable operation of ina bearings. Generally, the precautions for ensuring the reliable operation of bearings are as follows:Ina plastic bearing noise detection method
The bearing clearance should be appropriate. If it is too large, there will be impact. If it is too small, there will be poor lubrication and Bush burning.Ina plastic bearing noise detection method
Improve lubrication quality, control oil pressure, temperature and flow, and strengthen oil filtration.
The surface quality and geometric shape of INA Bearing and journal shall be strictly guaranteed.
Fuel oil and lubricating oil conforming to the regulations shall be used.Ina plastic bearing noise detection method
It is disadvantageous to control the temperature state of diesel engine and work under the condition of supercooling and overheating. In cold weather, the diesel engine shall be preheated before starting, and the crankshaft shall be rolled by hand to make the oil enter the friction surface.Ina plastic bearing noise detection method