The unit has to take out a review question and answer questionHow should emergency handling of engine pump sliding bearings cause heating and smoke?Who knows how to answer one of the troubles?,Then ask a question, generally speaking, sliding bearings, heating, smoke, what are the ways to deal with it, there are known to say, I sum up, good answer
Brother, I did 14 years of mechanical maintenance, sliding bearings, heating, smoke, the most urgent treatment: 1. emergency shutdown. The sliding bearing heating smoke indicates that the clearance between the sliding bearing and the shaft is too tight, or that the grease / grease has impurities (metal scraps) and other things, and that it may be that the bearings have reached the service life and damaged. Maintenance may cause damage to the shaft if it is not shut down, so maintenance costs will be higher. 2. disassemble and repair the pump. Check what causes heat, smoke, cooling is a temporary solution, not only the pump will also heat, and may damage the whole pump. For example, check the running of the bearings, whether there is a deep scratch, or whether the shaft is worn, whether there is a foreign body. After confirming the cause, proceed "the right remedy"".
The most urgent treatment:1. emergency shutdown. The sliding bearing heating smoke indicates that the clearance between the sliding bearing and the shaft is too tight, or that the grease / grease has impurities (metal scraps) and other things, and that it may be that the bearings have reached the service life and damaged. Maintenance may cause damage to the shaft if it is not shut down, so maintenance costs will be higher.2. disassemble and repair the pump. Check what causes heat, smoke, cooling is a temporary solution, not only the pump will also heat, and may damage the whole pump. For example, check the running of the bearings, whether there is a deep scratch, or whether the shaft is worn, whether there is a foreign body. After confirming the cause, proceed "the right remedy"".3. treatment methods:3.1. the lightest disease is the use of bearings for too long, the internal grinding and shaft clearance is too large, so that the shaft in high speed operation can not be concentric, the friction coefficient is too large, produce a lot of heat smoke, this method change bearings.3.2. if the bearing is damaged, the scratch is very deep, the shaft is not damaged, replace the bearing. In the important or high cost equipment, but there is disassembly repair, bearing clearance is obviously large, the situation is generally directly replace bearings.3.3. clearance of the bearing and the shaft with impurities, so that the clearance of the bearing and shaft is too small to generate heat in the smoke, dismantling maintenance if bearing serious damage to replace the bearings, bearing no damage but local small scratches, water sandpaper polished repair carefully, but it needs some skills "".
