DEVICE FOR ELECTROMAGNETIC UNLOADING RADIAL BEARINGS Russian patent published in 2009 - IPC F16C32/04 F16C39/06 

FIELD: electricity.

SUBSTANCE: present invention pertains to electrical engineering, particularly to devices for electromagnetic unloading bearings and magnetic levitation. The device for electromagnetic unloading radial bearings has a stator in form of a magnetic core (1) with a central pole terminal (2), with an exciting coil (8) and a cylindrical working surface, two pairs of diametrally opposite side pole terminals (3, 4, 5, 6), which have generator coils (9, 10, 11, 12) and working surfaces with teeth, made with relative shift of teeth in the pairs of half the space between the teeth, and a pole terminal with a permanent magnet (7). The rotor is made in form of a ferromagnetic ring (14), fitted on a shaft (13) and with teeth on its surface, facing the working surfaces of the stator pole terminals, with spacing coinciding with the spacing of the teeth of side stator pole terminals. Generator coils (9, 10, 11, 12) are connected in series accordingly and form two pairs of coils, which are joined head-on and connected to the input of a rectifier. The output of the rectifier is connected to the exciting coil (8) of the central pole terminal (2) and a capacitive filter.

EFFECT: design of a device for unloading radial bearings from unidirectional forces independent of external sources of electrical energy, with possibility of use in explosive and aggressive media.

2 dwg