INA burns in the process of the use of high temperature bearing

1. How to deal with the INA bearing temperature is too high ( 1) 。 ( 2) 。 Machine by hydraulic mechanical failure bright light plate, indicates the instrument temperature, high temperature bearing temperature signal relay action. ( 3) 。 The thermometer plate ( Inflating the thermometer) Black stitches overlap or more yellow and yellow needle. ( 4) 。 Bearing temperature fault signal. 2. The causes of bearing high temperature phenomenon: ( 1) 。 It is possible that bearing cooling water, high temperature phenomenon. ( 2) 。 Is likely to be oil degradation of INA bearing, oil itself will not clean the CPC degradation, or run. Such as the moisture in oil increase can cause the acidity of the oil, can reduce oil lubrication, the bearing shell was corrosion, resulting in the phenomenon of high temperature bearing temperature. 3. Bearing high temperature occurs when handling. When INA bearing temperature increases, the first need to determine whether there is an error action, if the temperature is indeed rising, should immediately do the following treatment: ( 1) 。 Check the cooling water pressure, water flow and pipeline system is normal. If water is likely to be lower filter blockage, cannot be handled in a timely manner, to stop treatment, when confirm can work, then put into use. ( 2) 。 Should be to check if the governor oil pressure, oil pressure is low can lead to cooling water hydraulic valve closed. ( 3) 。 Check for different bearing, and detection of INA bearings degrees whether there are abnormal. ( 4) 。 Take oil whether there is a change of color, sample observation and test to see whether metamorphism. If confirm the degradation new oil should be replaced downtime. ( 5) 。 Check the oil standard oil level is normal, if abnormal, check that the sump oil discharge valve is shut. If the matter, should fill oil, if is the sealant mat permeability oil, should stop processing. Assembly to prevent foreign body: INA bearings in loaded on the rotor dynamic balance when it is easy to dynamic balance of iron into the bearing inside, so it is best to install bearing before do dynamic balance. There are some manufacturers in order to convenient assembly, assembly in bearing indoor coated with some oil or grease lubrication effect, but usually operators good amount of it is hard to control, if oil or grease in the bearing interior storing up more, in the bearing rotates along axis to the high temperature inside the bearing easily. Bearing chamber it is best not to apply oil or grease, if must apply to control shall not be storing up in bearing interior. Paint the rust prevention: paint rust is characterized by multiple in sealing type motor, the motor sound is very good, when it is assembled but put some time in the warehouse, the motor sound is very big, remove the INA bearings have serious rust phenomenon. Many manufacturers will think is a problem of bearing before, after our propaganda, motor factory now have realized mainly is a question of insulating varnish. Acid varnish comes out of the problem is mainly due to the formation of corrosive substances under certain temperature and humidity, the high temperature bearing channel after corrosion result in bearing damage. The problem now is only to choose good insulating paint, after drying and ventilation assembly after a period of time. Bearing assembly way: because the bearing is high precision products, such as improper assembly is easy to cause damage to bearing channel, result in bearing damage. INA bearing in the assembly shall have a dedicated mold, not casually, only small circle of stress when pressure into the shaft, pressure can force the circle circle. Require the use of pneumatic or hydraulic assembly, lower die when being connected to outside the state level, such as with sloping channel by mechanical damage can lead to bearing, and make the high temperature bearing guide ring.