| 摘要 |
The invention relates to electromechanics and can be used in stroke drives of machines and mechanisms meant for creation cyclic shock pulses, for example, deformation of technological objects. Object of the invention is efficiency improvement of cyclic-type induction dynamic electric motor due to absence of external devices providing circulation of liquid refrigerant coolant, improvement winding cooling and decrement of armature strokes against winding during reverse movement. If winding is connected to a pulse source excided magnetic field generates currents in electric conductive armature (5). As a result, electrodynamic repulsive force occurs, which move the armature (5) together with stroke elements (7) towards an objective point. Thereat, with help of disc carrier (14) guide pin (12) is moved, so that a striking pin (13) makes deformation of object (10) . Movement of a flat piston (24) is performed inside of a cooling chamber (22) with liquid coolant (23). One-way valves (26) arranged on the flat piston let pass liquid coolant (23). A cylindrical spring (16) and hydro-insulating element (17) enclosing the said spring, which prevents liquid coolant from escaping to environment, relax. Upon finishing forward motion under action of the spring the guide piston (12) performs reverse motion away from the object towards the winding (1). One-way valves (26) become closed, do not let pass liquid refrigerant coolant (23), so the flat piston (24) pushes liquid refrigerant coolant (23) in the cooling chamber (22). Liquid refrigerant coolant (23) is squeezed out of the cooling chamber (22), follows to end of a multilayer tube (18), passes through an internal channel and through input end passes to the cooling chamber (22). The increased temperature of the liquid refrigerant coolant (23) is rejected from cooling chamber (22) to environment via radiators (27) installed on the external side thereof. As the piston (24) performs reverse movement it meets support force caused mainly by hydraulic strength of liquid refrigerant coolant movement through the inner channel (19) of multilayer tube (18), smooth movement of guide piston 12), stroke element (7) and the armature (5) towards inductor (1) winding occurs. |
