DEVICE TO CONTROL TRAVELLING CRANE MOTION Russian patent published in 2010 - IPC B66C9/16 

FIELD: transport.

SUBSTANCE: invention serves to restrict lateral displacements of travelling cranes. Proposed device comprises contactless transducers of wheel position relative to rails and input resistors of induction motor rotor circuits. It comprises transducer unit consisting of contactless transducers arranged in pairs on both ends of end beam. Besides it comprises guide unit including switch, two closing relays to vary direction of transducer signals about crane displacement and two closing contactors to direct transducer signals in the case of crane lateral displacement. Note that proposed device comprises actuator unit including from breaking contactors and four resistors to act on drive motors.

EFFECT: higher reliability of crane operation.

3 cl, 1 tbl, 3 dwg