| 摘要 |
FIELD: machine building.SUBSTANCE: rotor of a centrifugal compressor comprises a shaft and an impeller installed on it, the impeller includes the main and the cover disk with blades, a circular grooving which separates the cylindrical supporting surfaces is made in the central part of the main disk hub, a circular slot is provided in the disk hub near the supporting surface located on the side opposite to the cover disk and is communicated with the environment by four or more holes grouped pairwise, in a diametrally opposite way, therewith holes of at least one pair are provided with a thread.EFFECT: improved accuracy of the impeller fitting at the rotor assembly and decreased deformations of the impeller surfaces.3 dwg |
