DEVICE FOR SUPPLY AND CONTROL OF TRACKLESS VEHICLES Russian patent published in 2002 - IPC

FIELD: mechanical engineering; lifting and transportation facilities. SUBSTANCE: invention relates to electrical equipment of lifting and transportation facilities and can be used for supply of trackless from power network. Proposed device has hanger, switchgear, suspension and intermediate cable, carrier with first current collector, guide unit rotating in horizontal and vertical planes, travel motion electric drive and drum electric drive. Guide unit is secured on two vertical disks of drum. Drum and rotor of second current collector set into rotation by separately excited DC motor are secured on horizontal frame. The latter is mounted on support secured on vehicle body. Travel motion electric drive consists of controllable two-stage rectifier, series-wound electric motor, isolation diode, switch and power transformer. Drum electric drive includes electric motor armature current automatic stabilization system, tension intensity setter and setter and comparator changing over controllable rectifier to reduced noncontrollable voltage when tension of intermediate cable reaches limited value. EFFECT: improved maneuverability, electric safety and increased economy. 4 dwg