Causes of oil leakage in oil tank of three blade roots blower and introduction of bearing failure and damage causes

Xinqian Shun Fan introduces the causes of oil leakage in the oil tank of the three leaf roots fan, bearing failure and damage

Bearing failure and damage causes of three blade roots blower:

1. The metal on the raceway surface peels off, and the bearing roller and inner and outer race raceways are subject to periodic pulsating loads, resulting in periodically changing contact stress. When the number of stress cycles reaches a certain value, fatigue peeling will occur on the working surface of the rolling element or the inner and outer ring raceways. If the load of high-precision rotary table bearing is too large, this fatigue will be aggravated. In addition, if the bearing is installed incorrectly and the shaft is bent, the raceway will also peel off. The fatigue peeling of bearing raceway will reduce the running accuracy of the shaft and cause vibration and noise of the mechanism.

2. The bearing of three blade Roots blower is burned, and the raceway and rolling element of the burned high-precision rotary table bearing have the flame color. The causes of burns are generally insufficient lubrication, unqualified or deteriorated lubricating oil, and tight bearing assembly.

3. The three blade roots blower has plastic deformation, and uneven pits appear on the contact surface between the raceway and roller of high-precision rotary table bearing, indicating that the bearing has plastic deformation. The reason is that the local stress on the working surface of high-precision rotary table bearing exceeds the yield limit of the material under the action of large static load or impact load, which generally occurs on bearings rotating at low speed.

4. Cracks in bearing race of three blade roots blower The causes of cracks in bearing race may be that the high-precision rotary table bearing fits too tightly, the foreign or inner ring of high-precision rotary table bearing is loose, the bearing containment parts are deformed, and the surface of the installed bearing is poorly machined.

5. The cage of three blade Roots blower is broken due to insufficient lubrication, broken rolling element, skewed seat ring, etc.

6. The metal of the three blade roots blower cage sticks to the rolling element, which may be caused by the rolling element being stuck in the cage or insufficient lubrication.

7. The raceway of three blade roots blower seat ring is severely worn, which may be caused by foreign matters falling into the seat ring, insufficient lubricating oil or improper lubricating oil brand.

Causes for oil leakage of the oil tank of the three blade roots blower:

First of all, the main reason for oil leakage is the problem of the rubber seal ring inside the transmission. For example, the seal ring loses its activity due to the alternating change of temperature for a long time, and a large amount of accelerator and softener are lost in the seal ring, which will lead to the aging of the seal ring. At the beginning, there may be a slight oil leakage that is not very obvious, In the end, oil drips slowly appear.

Secondly, there is oil leakage at the exhaust port under the gearbox. The main reason is that the inlet pressure does not reach the specified value, and the pipeline also has some problems. The dust and blockage of the filter need to be cleaned. If it returns to normal, it can be used. If there is still oil leakage, the pipeline must be comprehensively repaired, It is also necessary to determine whether the inlet and outlet pressure values meet the specified standards, which will naturally avoid more serious oil leakage.

If there is oil leakage at the exhaust port below the gear box of the three blade Roots blower, it is suggested that you should understand the above reasons to make a judgment. Only in this way can you truly judge the fault problem and naturally solve it reasonably, so as to prevent the fault problem from becoming more and more serious, otherwise it will easily affect the future use effect, So I suggest that you should understand these details. Prevent oil leakage.