LIFTING MECHANISM ELECTRIC DRIVE CONTROL DEVICE Russian patent published in 2011 - IPC B66C13/18 

FIELD: transport.

SUBSTANCE: invention relates to crane electric drive control mechanisms. Proposed device comprises control unit, analog and digital signal decoding and encoding means, controllers and lifting mechanism control components, signaling and indicating means, indication unit to display data on crane operating state, electric drive control devices, state pickups and actuators, operating conditions control means, communication means, control unit and unit for interaction with crane operator. All units incorporated with proposed device represent unified self-contained units, supply voltage feed and distribution unit. Units to control mechanisms incorporate electric drive control device, and decoding and encoding unit whereto state transducers and actuators are connected unit for interaction with crane operator comprises lifting mechanism state indication unit and decoding and encoding unit, control components, signaling and indication means. Supply voltage feed and distribution unit comprises decoding and encoding unit whereto supply voltage feed and distribution means are connected.

EFFECT: higher reliability and safety.

7 cl, 2 dwg