System of consistent rotation of speeds of drive electric motors of movement mechanisms of overhead cranes

work is devoted to the study of electric drive overhead cranes and creation a new reliable system multi-motor with coordinated rotation speeds motors movement mechanisms cranes. The electromechanical travel an crane complex multi-mass elastically connected controlled by drive, which subject large number force factors. main trends in development are increase reliability its operation range speed control. mechanism bridge indicates that metal structure dangerous elastic transverse deformations, limitation can be ensured optimizing system. For technological cranes, most promising use based on principle working shaft.