speed control for drehwerks or hubwerksantriebe a transport device, in particular to a schiffskrans

摘要

To predetermine a transporting speed, a transporting apparatus, in particular an articulated crane for ships, has a reference element (48) which is provided with a control lever (23) and feeds a transducer (76) which forms a signal (+/- v.t.) which varies with time according to a predetermined function and is fed to a computer (77) in which the variation with time of the desired value ( gamma desired) of the angle of rotation of the inner cantilever (4) is formed as a function of parameters (yo) of the transporting path.