Reasons for Crankshaft Wear of Roots Vacuum Pump System

Roots vacuum pump system has not been heard of by many users, but it plays an important role in noise control. But any substance can not stand the passage of time. Crankshaft wear will occur in a long time. Here is the reason for wear.

1. The elliptical wear of the journal is caused by the uneven distribution of forces acting on the journal along the circumferential direction.

When working, the comprehensive force acting on the connecting rod journal always acts on the inner side of the connecting rod journal, and the direction is outward along the crankshaft radius, resulting in wear and tear on the inner side of the connecting rod journal.

2. Because the oil passage to the connecting rod journal is inclined:

When the crankshaft of Roots vacuum unit rotates, mechanical impurities in lubricating oil accumulate on one side of the connecting rod journal under centrifugal force, which accelerates the wear of the side journal and makes the wear of the connecting rod journal conical.

3. The bending of connecting rod and the non-perpendicularity of the cylinder center line to the crankshaft center line of the unit will cause the non-uniform axial force on the journal and cause the wear deflection.

Roots vacuum pump system refers to the pump with two blade rotors rotating synchronously in opposite directions. Its wear is generally related to connecting rods and journals. We need regular maintenance. In addition, we try our best to avoid the phenomenon of wear and tear, so that it is possible to reduce wear and increase service life.

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