ROTOR WITH OUT-OF-BALANCE COMPENSATOR Russian patent published in 2014 - IPC F16F15/32 F01D5/02 G01M1/36 

FIELD: machine building.

SUBSTANCE: rotor with out-of-balance compensator comprises an impeller of a turbomachine stage and a compensator of impeller out-of-balance in the form of a balance weight made as a segment with circular outer and inner surfaces and a lock member. At least on one side the rotor is fitted by a recess in the impeller body with annular outer and inner undercuts. An annular collar with slots is provided outside on the impeller end face opposite the outer undercut, an outer ledge - opposite the inner undercut. The segment is installed in the undercuts of the impeller recess by the outer conical and the inner surfaces and is fixed by bending the lock member into the collar slot. The slot axis is in the plane being longitudinal to the impeller axis and at an angle to the latter. In the course of the turbomachine operation the balance weight gets in sliding contact by its conical surface with the conical surface of the outer undercut of the disk recess and is reliably pressed by its end face surface to the end face surface of the impeller by centrifugal forces.

EFFECT: invention allows for the simplification of balancing a rotor, for example, an impeller of a turbomachine stage due to no necessity in dismantling it from the machine for balancing, it also provides for decrease of loads on the rotor bearings and for increase of specific speed of the turbomachine due to improved accuracy and stability of the impeller balancing, increased reliability of fixing a balance weight in the impeller and extended service life of the turbomachine impeller.

6 cl, 6 dwg