| 摘要 |
The invention provides a high-speed rotor assembly for an overhung centrifugal compressor comprising a housing, a rotor component, an oil film damper and an impeller, which is adapted for connecting to a power output mechanism, wherein the rotor component is arranged inside the housing, and the oil film damper is disposed between the impeller and the rotor component, and the impeller is coupled to the rotor component. The rotor component further comprises a sleeve, a first bearing, a second bearing, a transmission shaft, a plurality of resilient elements and a spacer, wherein an end of the sleeve is connected to one of the circular rib by a screw while another end thereof is handing freely, and a oil film damper is disposed between the sleeve and another circular rib. Moreover, the first bearing and the second bearing are respectively arranged at the two side of the sleeve, and the spacer is arranged between the two bearings with the two end thereof respectively abutted against the inner races of the two bearings. Further, the transmission shaft is disposed passing through the spacer and the two bearings, and the impeller is disposed at the second side of the housing and is coupled to an end of the transmission shaft.
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