Detailed explanation and precautions for lubrication parts, gears, and bearings of Roots blower

The lubrication parts of Roots blower mainly include the following parts:
1. Synchronous gear: The Roots blower is equipped with a pair of involute rotors inside, which rotate at high speed through the mutual transmission of gears, thus completing the process of gas suction, compression, and discharge. Therefore, the synchronous gear is an important lubrication part of the Roots blower, and its lubrication effect directly affects the operating efficiency and stability of the blower. Usually, a splash lubrication method is used to splash lubricating oil onto the surface of the gear to ensure its normal operation.
2. Bearings: The bearing part of the Roots blower also needs to be lubricated to reduce friction and wear, and improve the service life of the bearings. The lubrication method for bearings can be grease lubrication or splash lubrication. Lubricating grease is mainly used in the bearing part, ensuring the lubrication effect of the bearing by adding an appropriate amount of lubricating grease. And splash lubrication is suitable for some double oil tank Roots blowers, which use gears to splash lubricating oil onto the bearing parts during high-speed rotation for lubrication.
During the lubrication process, the following points should be noted:
1. Choosing the appropriate lubricating oil: Roots blowers typically use 220 # medium load gear oil as the lubricating oil, which has high load-bearing capacity, thermal oxidation stability, and water separation performance, ensuring the normal operation of gears and bearings. At the same time, lubricating grease should be selected with high temperature and high speed resistant yellow grease.
2. Maintain appropriate oil level: The oil level of the lubricating oil should be kept within an appropriate range to ensure that the gears and bearings receive sufficient lubrication. Low oil level can lead to insufficient lubrication, while high oil level may cause excessive stirring of lubricating oil, rapid temperature rise, and problems such as oil separation, decomposition, and leakage.
3. Regular inspection and replacement of lubricating oil: During use, the quality and quantity of lubricating oil should be checked regularly. If the lubricating oil is found to have deteriorated or insufficient quantity, it should be replaced or replenished with new lubricating oil in a timely manner. At the same time, it is necessary to avoid mixing different types of lubricants to avoid affecting the lubrication effect.
In summary, the lubrication parts of Roots blower mainly include synchronous gears and bearings, and the lubrication method can be selected as grease lubrication or splash lubrication according to the specific situation. During the lubrication process, it is necessary to pay attention to selecting the appropriate lubricating oil, maintaining the appropriate oil level, and regularly checking and replacing the lubricating oil.