SHAFT LIFT WINCH ELECTRIC DRIVE Russian patent published in 2019 - IPC B66B9/04 

FIELD: lifting devices.

SUBSTANCE: invention relates to hoisting and transport equipment and can be used as electric drive of winch of prospective mine hoist with smooth movement of cabin. Electric hoist winch drive comprises series-connected: three-phase current source, switch, motor, which shaft is connected by winch drums, according to invention as a motor there used is contactless DC motor comprising inverter, synchronous motor, a rotor position sensor and a pulse former, and a DC source comprising a Larionov-based rectifier and a capacitor are introduced, in addition, an engine switch is introduced, wherein inverter is connected to synchronous motor, on shaft of which rotor position sensor is installed, rotor position sensor output is connected to pulse shaper, which output is connected to inverter control input, direct current source rectifier input is connected to switch, and to corresponding outputs of direct current of said rectifier there connected is capacitor connected to engine switch, similar outputs of named rectifier and specified capacitor are matched.

EFFECT: technical result is stable constant speed of cabin movement and reduced consumed power of elevator.

1 cl, 1 dwg, 1 tbl