Causes and solutions of friction between three blade roots blower impellers

Three leaf roots blower will inevitably have various failures after a long time of use. Xinqianshun Xiaobian summarized the causes of friction between roots blower impellers and solutions. I hope I can help you!

1、 Cause

(1) The impeller is contaminated with impurities, resulting in too small clearance;

(2) Gear wear causes large backlash;

(3) The gear is not firmly fixed and cannot keep the impeller synchronized;

(4) The bearing wear causes the clearance to increase.

2、 Solutions

(1) Remove the dirt and check whether the internals are damaged;

(2) Adjust the gear clearance. If the gear backlash is greater than 30%~50% of the average value, replace the gear;

(3) Reassemble the gear and keep the taper fit contact area up to 75%;

(4) Replace the bearing.