For the problem of heating of slurry pump bearings, we first need to find out the specific cause of heating, and then take corresponding solutions. The following are some common causes and corresponding solutions:
Bearing damage
Phenomenon: Both ends of the bearing heat up, noise and vibration occur, and the shaft moves in severe cases.
Solution: Replace new bearings. If the damage is serious, the entire bearing assembly may need to be replaced.
Bearing clearance is too small
Phenomenon: The bearing heats up due to increased friction.
Solution: Re-adjust the bearing clearance, or perform scraping treatment to ensure that the bearing clearance is moderate.
Too much or too little grease
Phenomenon: Too much grease will affect heat dissipation, and too little grease will not play a good lubricating role, which will cause the bearing to heat up.
Solution: Add grease in an appropriate amount according to the recommendations in the instruction manual to ensure that the amount of grease is moderate.
There are debris or poor oil quality in the grease
Phenomenon: Debris or poor oil quality will increase the friction of the bearing, thereby heating up.
Solution: Replace with new, clean lubricating oil and clean the bearing.
Poor bearing assembly
Phenomenon: Improper assembly or improper clearance adjustment will cause the bearing to heat up.
Solution: Check the assembly of the bearings as required, eliminate unqualified factors, and ensure the assembly quality.
Cooling water supply problem
Phenomenon: If the cooling water is not turned on or the cooling water tank is blocked, the bearing heat dissipation will be poor.
Solution: Turn on the cooling water function to ensure normal cooling water supply; if the cooling water tank is blocked, the cooling water channel needs to be cleared.
Bearing wear or looseness
Phenomenon: Bearing wear or looseness will cause heat.
Solution: Repair the bearing or replace it with a new one, and tighten the relevant bolts.
Pump shaft bending or motor shaft and pump shaft misalignment
Phenomenon: The bending or misalignment of the pump shaft will cause uneven bearing force, causing heat.
Solution: Correct the pump shaft to ensure that the pump shaft is parallel to the motor shaft.
Oil slinger deformation
Phenomenon: The oil slinger cannot rotate or cannot carry oil, which will cause poor bearing lubrication and heat.
Solution: Replace a new oil slinger.
Thrust bearing direction is incorrect
Phenomenon: Incorrect thrust bearing direction will cause abnormal bearing force, causing heat.
Solution: Adjust the thrust bearing direction according to the inlet pressure condition.
Bearing air outlet is blocked
Phenomenon: The blockage of the bearing air outlet will cause the hot air to be unable to be discharged, thereby increasing the bearing temperature.
Solution: Clean the bearing air outlet to ensure that the hot air can be discharged smoothly.
Regular inspection and maintenance: Regularly inspect and maintain the slurry pump to promptly discover and solve problems and ensure the normal operation of the pump.
Correct operation: Strictly follow the operating procedures to avoid equipment damage caused by improper operation.
Select high-quality accessories: Select high-quality bearings and lubricating oils and other accessories to improve the durability and reliability of the equipment.
In summary, the problem of heating of the slurry pump bearing needs to be investigated and solved from multiple aspects. Only by ensuring that the bearing is in good working condition can the service life of the slurry pump be extended and production efficiency be improved.
