LIFTING DEVICE ACTUATOR AND LIFTING SYSTEM Russian patent published in 2011 - IPC B66D1/48 

FIELD: transport.

SUBSTANCE: in compliance with first, second, third and fourth versions, lifting system comprises actuator and "cargo-machine" interface. Actuator comprises pulley with cable fastened therewith. Pulley is driven by motor and appropriate transmission. "Cargo-machine" interface comprises user control elements. In compliance with first version, transmission comprises modular reduction gear. In compliance with second version, lifting system comprises strain gage jointed with pulley. In compliance with third version, lifting system comprises user control element. Said control element generates signal using spiral to detect core relative displacement. In compliance with fourth version, system incorporates sliding gate coupled with pulley. Actuator comprises controller, motor, operator's board, load pickup, sag pickup, motor-plus-reduction gear module, planetary reduction gear and cable guide. Motor-plus-reduction gear module incorporates extra reduction gear.

EFFECT: higher capacity and reliability.

20 cl, 35 dwg