How to adjust axial gap dry screw vacuum pump _

how to adjust the radial clearance of dry screw vacuum pump? Centrifugal impeller is installed on the screw vacuum water pump, pump shaft, then install the cover plate to adjust the radial clearance before and after.

1。 Inversion will screw vacuum pump, on the bracket, the pump shaft tilt, make the cover support on the bracket, screw vacuum pump power to make close contact at the side of the strong point of centrifugal impeller, and a centrifugal impeller and the other side of the cover, the radial clearance between the screw vacuum water pump diameter and on either side of the gap, the total clearance can be measured by the following method.

2。 Put the dial indicator on the side cover, touch pin at the top of the screen and screw pump, pump shaft and adjust to zero. shaft end, centrifugal impeller in contact with the upper cover completely. At this point, the dial gauge indicating the figure is total radial clearance. If the total radial clearance more than standard, please properly adjusted.

3。 Total radial clearance after reaching the standard, waiting for the screw vacuum pump components for processing, then tighten the nut will be pushed to the centrifugal impeller shaft. Mobile distributed evenly on both ends of the radial clearance, the centrifugal impeller, centrifugal impeller and the voice of the side cover is not suitable for the dispute. This adjustment method, of course, there is no guarantee that both ends of the radial clearance is year-on-year growth.

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