RADIAL ELECTROMAGNETIC SUPPORT FOR ACTIVE MAGNETIC BEARING Russian patent published in 2021 - IPC F16C32/04 F16C39/06 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to bearing devices of rotary machines and can be used as part of various installations with a fast-rotating rotor, such as turbine units, centrifugal compressors and turbo expanders, electric motors and electric generators, and provides minimal magnetic coupling between the magnetization and control windings. The radial support for an active magnetic bearing (AMB) contains a radial electromagnet with a rotor in the form of a sleeve (2) made of soft magnetic ferromagnetic material placed on a rotating shaft (1) and a stator made in the form of a cylindrical housing (4) made of soft magnetic ferromagnetic material, inside which two stators (5) of regulating electromagnets are installed. At the ends of the sleeve (2) there are two rotors (3) of control magnets made in the form of cylindrical packages of sheets of electrical steel. The stators (5) contain magnetic cores made of electrical steel in the form of packages with four internal teeth, on which four control windings (10) are located. An insert (6) containing a magnetizing winding (7) and a two-coordinate capacitive gap sensor is installed between the stators (5) of the regulating electromagnets.

EFFECT: ensuring the possibility of using radial electromagnets of a special design with reduced requirements for the accuracy of manufacturing the elements of the supports and their mutual arrangement, reducing the power of the output cascades of the current regulators of the radial channels of stabilization of the AMB and the possibility of creating compact electronic modules placed in the structure of the supports or in close proximity to the supports.

3 cl, 4 dwg