Study of the dynamics of the movement mechanism of an overhead crane as a complex electromechanical system

The article studies the dynamics of crane movement mechanism to take measures for their reliable operation and reduce wear mechanisms. For this, following assumptions are accepted: transverse motion is not considered, engines electric drive considered; presented in form a seven–mass system, load suspension adopted as rigid.
 It has been established that account flexibility rope, with which suspended, does significantly affect (no more than 10%) values largest dynamic loads elastic connections; therefore, when determining connections mechanisms, it possible use system an rigid load. processes mechanisms load-lifting cranes using calculated seven-mass scheme structures. During oscillations occur its metal structures transmission shafts, addition, sways (which, together rope length Ls, forms pendulum moving point).
 graphs show forces longitudinal, beams linear speeds wheels, external force applied each wheel 21700 N. All three types have different frequencies, allows them be considered on simpler two-mass models. But synchronous rotation systems (SRS) mechanism, often prone oscillations, proposed model better suited, because takes into interaction SRS at vibration frequencies. With these loads, mismatch path sides Dxc exceed 0,025 m, relative swing xl 0,25 m.
 found according model, driving applied, mechanical arise frequencies observed. designs discussed article, 0,2, 0,95 6,4 Hz; study complete picture processes, necessary consider displacement movement.
 parameters output data bridge determined. Based obtained results was constructed. converted three-axle, first rotor engine, second - gear coupling, third axle two gears.