INDUCTION-DYNAMIC MOTOR OF CYCLIC ACTION Russian patent published in 2012 - IPC H02K33/04 H02K41/35 H02K9/19 

FIELD: electricity.

SUBSTANCE: invention relates to the field of electrical engineering and electromechanics and may be used in impact drives of machines and mechanisms, which are designed to develop cyclic impact pulses, for instance, of deformation of process objects. The invention objective is to increase efficiency of an induction-dynamic motor of cyclic action due to absence of external devices providing for circulation of liquid coolant, improved cooling of a winding and damping of anchor strikers against a winding during its reverse travel. When a winding (1) is connected to a source of pulse current, an excited magnetic field induces currents in an electroconductive anchor (5). As a result, an electrodynamic pushing force arises between them, which moves the anchor (5) together with an impact element (7) towards an exposed object (10). At the same time via a support disc (14) a guide rod (12) moves, and a striker (13) deforms the object (10). A flat piston (24) moves inside a cooling chamber (22) with a liquid coolant (23). Single-sided valves (26) that are orderly arranged on a flat piston (24) let the liquid coolant (23) freely pass through. A cylindrical spring (16) and its embracing elastic hydraulic insulation element (17), which prevents leakage of the liquid coolant into environment, open. Upon direct working travel under action of the spring (16) the guide rod (12) travels backwards from the object (10) to the winding (1). Single-sided valves (26) close, not letting the liquid coolant (23) through, and the piston (24) pushes the liquid coolant (23) in the chamber (22). The coolant (23) is purshed out from the chamber (22), arrives into the output end (21) of a multi-turn tube (18), passes along its internal channel (19) and via an input end (20) arrives into the chamber (22). The increased temperature of the liquid coolant (23) is removed from the cooling chamber (22) into environment via cooling radiators (27) installed on its outer side. Since the piston (24) during reverse travel is exposed to a resistance force, caused mainly by hydraulic resistance to motion of the liquid coolant along an internal channel (19) of the multi-layer tube (18), then smooth motion of the guide rod (12) happens, as well as of an impact element (7) and an anchor (5) towards the inductor winding (1).

EFFECT: technical result achieved in use of this invention consists in improvement of inductor winding cooling and provision for damping of anchor strikes as it moves back against an inductor winding, which causes higher efficiency of a proposed induction - dynamic motor of cyclic action.

8 cl, 6 dwg