ELECTROMAGNET COUPLING GEAR WITH SEALING SCREEN Russian patent published in 2012 - IPC H02K49/00 

FIELD: electricity.

SUBSTANCE: electromagnet coupling gear comprises a driving link joined with a driving mechanism shaft, comprising an electromagnet with an excitation winding and contact rings with sliding current contact jaws, a fixed screen in the form of a vessel from an electric insulation material with inbuilt ferromagnetic elements, having outer and inner cylindrical cavities, in the first of which there is a driving link, and in the second one - a driven link in the form of a ferromagnetic anchor with cogs in the axial direction. The driving link electromagnet is arranged in the form of a ferromagnetic magnetic conductor with at least one pair of poles installed along the driving link axis or at the angle to it and facing the cylindrical surface of the fixed screen in the outer cavity, in slots of the magnetic conductor between the poles there are excitation winding coils installed as connected to each other and to contact rings so that whenever electric current flows, polarities of electromagnet poles vary, inbuilt ferromagnetic elements of the fixed screen are made in the form of bunches from thin rods or in the form of plates and are located inside the electric insulation material of the screen body so that the longitudinal axes of strips formed by inbuilt elements, when reaching the screen surface in the inner and outer cavities and facing the poles of the driving link and the cogs of the driven link, are located along the poles and cogs or at the angle to them.

EFFECT: high specific characteristics, higher manufacturability.

5 dwg