FIELD: electricity.
SUBSTANCE: invention refers to the design of synchronous electric machines with contact rings with possibility of high electromagnetic reduction and can be used in automation systems, in military equipment, in domestic equipment, as motorised wheels, motorised drums, starter-generators, electric steering wheel boosters, electric drives of high and average power of ships, trolleybuses, trams of the underground, 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 wind-driven generators, hydraulic generators, high-frequency electric generators and synchronous generators of frequency converters. Electric reduction machine with axial excitation includes stator the armature core of which consists of insulated electrotechnical steel plates with high magnetic permeability and has salient poles on inner surface of which there are elementary teeth, coil m-phase armature winding, each coil of which is arranged on the appropriate salient pole of armature, and inductor with odd and even tooth cores with even number of teeth on each core; the number of cores of inductor is at least two, active length of extreme inductor cores in axial direction is the same; if there are more than two inductor cores, active length of cores in axial direction, which are located between extreme inductor cores, is more by two times than active length of extreme cores, even inductor cores are offset relative to odd ones in tangential direction through the half of its tooth division; salient tooth poles of armature and tooth inductor cores face each other and are divided with air gap; between inductor cores there located is excitation winding of inductor, which is made in the form of ring-shaped coils the number of which is one less than the number of inductor cores; excitation of inductor is performed during feeding of excitation winding with direct (rectified) current through brushes and contact rings; tooth-and-slot zone of armature is comb-shaped and distributed. At that, for serviceability of electric reduction machine with axial excitation 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 inductor core and number of phases of m-phase armature winding.
EFFECT: manufacture of high-technology and highly repairable constructions of electric reduction machines with axial excitation by applying electromagnetic reduction in wide ranges at providing high energy parameters and operating characteristics with possibility of smooth and deep control by means of output parameters.
9 cl, 5 dwg, 1 tbl
