FIELD: electricity.
SUBSTANCE: invention refers to low-speed high-torque electric motors, electric drives and generators, to the design of non-contact electric machines with electromagnetic reduction and can be used in automation systems as motorised wheels, motorised drums, starter-generators, electric steering wheel boosters, direct drives in domestic equipment, electric drives of high and average power of ships, trolleybuses, trams, concrete mixers, lifting mechanisms, belt conveyors, liquid transfer pumps, mechanisms with high torques on the shaft and low frequencies of its rotation, as well as direct drives without using any mechanical reduction gears, as well as wind-driven generators, hydraulic generators, high-frequency electric generators, synchronous generators of frequency converters and as controlled stepped motors. Non-contact electric reduction machine with salient-pole armature includes stator with housing made from soft magnetic material with odd and even packs of stator, which are laminated and consist of insulated electrotechnical steel plates with high magnetic permeability, and the number of which is not less than two; non-magnetic shaft with bushing from soft magnetic steel with high magnetic permeability with odd and even rotor packs with high permeability, which are laminated and consist of insulated electrotechnical steel plates, and the number of which is equal to the number of stator packs; active length of extreme stator and rotor packs in axial direction is equal if the number of stator packs is more than two; active length of stator and rotor packs in axial direction, which are located between extreme packs, is more by two times than active length of extreme packs; stator packs contain salient poles uniformly distributed along cylindrical surface, on inner surface of which there are elementary teeth, the number of salient poles on each stator pack is equal, the number of elementary teeth on each salient pole of stator pack is equal, stator packs in tangential direction are located so that axes of their salient poles located opposite each other in axial direction coincide; rotor packs contain the teeth uniformly distributed along cylindrical surface and the number of which on each rotor pack is equal; even rotor packs are offset relative to odd rotor packs in tangential direction through the half of tooth division of rotor pack, on salient poles of stator packs there is coil m-phase winding of armature, each coil of which in axial direction envelopes the appropriate salient poles of even and odd stator packs of one pole of each pack; between stator packs there located is excitation winding of inductor, which is made in the form of ring-shaped coils with longitudinal axis coinciding with longitudinal axis of machine, number of ring-shaped coils of excitation winding of inductor is one less than the number of stator packs. At that, there shall be certain relations between the number of salient poles of armature, number of elementary teeth on salient pole of armature, number of salient poles of armature in phase, total number of armature teeth, number of teeth on each pack of rotor and number of phases of m-phase armature winding.
EFFECT: manufacture of high-technology constructions of non-contact electric reduction machines with salient-pole armatures by applying electromagnetic reduction in wide range at providing high energy parametres and operating characteristics with possibility of smooth and deep control by means of output parametres.
9 cl, 5 dwg, 1 tbl
