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Full interpretation of the causes of vacuum pump bearing heating
Full interpretation of the causes of vacuum pump bearing heating1. Cracked valveWhen a valve is cracked, the pressure excitation on both sides of the impeller will be unbalanced, and the axial force will occur on the rotor, which will increase the bearing load and cause long-term operation.The bearing temperature rises. In this case, the valve disc... Full interpretation of the causes of vacuum pump bearing heating1. Cracked valveWhen a valve is cracked, the pressure excitation on both sides of the impeller will be unbalanced, and the axial force will occur on the rotor, which will increase the bearing load and cause long-term operation.The bearing temperature rises. In this case, the valve disc should be replaced in time.2. The shaft end seal failsWhen the shaft end sealing packing is damaged or the sealing water hole is blocked, Caicheng air is sucked into the pump body from these damaged gaps and will formThe suction and exhaust performance of the pump. Weaving-When the side seal fails, the pressure on both sides of the impeller will be unbalanced, and the rotor will have an axial force that will cause the bearingThe load increases, which increases the bearing temperature.3. The bearing preload is too largeThis situation will promote bearing clearance reduction or no clearance, resulting in bearing heating.4. Sensational impactWhen the sensation of the slurry or the bearing is large, the appearance of the bearing temperature will be too high. Look at the pump body to find out the cause of the sensation. To eliminate the sensation, the bearingTemperature rehabilitation5. Smooth appearanceIf the increase amount of the lubricating grease is too large or too small, or the type of the lubricating grease does not meet, the use time is too long or the lubricating grease will be contaminated, which will cause bearing heating.At this moment, you should check the type of lubricating grease, ask the manufacturer for the appropriate dosage, and adjust the lubricating grease to recover the bearing temperature. View Details