DC ELECTRIC MOTOR WITH TORQUE AMPLIFIER Russian patent published in 2009 - IPC H02K57/00 H02K23/68 

FIELD: electricity.

SUBSTANCE: electric motor comprises body, magnetic excitation poles, shaft with anchor and collector, holder with coal brushes, terminal box, reduction gear body, which is connected to electric motor body, slave shaft, which is kinematically connected to electric motor shaft. According to present invention, a flywheel is fixed on slave shaft of reduction gear, and its toothed rim by means of gears is coupled to electric motor shaft. Front and back movable disks with permanent magnets installed in dead radial slots are also fixed on slave shaft. Ends of magnets protrude to back end surface of front movable disk and to front end surface of back movable disk. Longitudinal axes of magnets are inclined to the side of front cover of reduction gear and are installed at the angle to this or that surface of movable disks. Between movable disks, with the possibility of longitudinal displacement and fixation, an immovable disk is installed, being kinematically coupled to switching handle. Immovable disk has through radial slots, in which magnets are fixed, ends of which protrude to both end surfaces and are inverted to magnets of both movable disks with their identical poles. Longitudinal axes of magnets are inclined to the side of front reduction gear cover and are arranged at the same angle to surfaces. Between immovable disk and movable disks there are immovable protective disks installed, being identical in design and having through radial slots, longitudinal axes of which are inclined to the side of front cover of reduction gear and are arranged at the same angle, and are also coaxial to magnets of front and back movable disks in case of their matching. Immovable protective disks are made of ferroalloys.

EFFECT: saving of electric energy, increased output capacity and torque.

16 dwg