Process for the orientation of the load in cranes
AssigneesOliver Sawodny, Eberhard Paul Hofer
InventorsOliver Sawodny, Stefan Lahres, Harald Aschemann, Ebberhard Paul Hofer
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Abstract
The invention concerns a process for the orientation of the load in cranes, in which the load hung from cables is rotated by a predetermined absolute angle using rotating gear between cable and load. Under the invention, here a regulating device is provided for the rotating gear with which torsion oscillations of the load are suppressed, where, as input values, the absolute rotating angular speed and the angular position of the rotating gear are measured and fed back to the setting input.
Claims20
Method for orienting load (3) on a crane (1), comprising the steps of
- supporting the load (3) on the crane (1) by cables (2),
- turning the load (3) by a specified absolute angle (γ) by rotating a gear (5) positioned between the cables (2) and load (3), and
- suppressing torsional oscillations of the load (3) by regulating the rotating gear (5), including measuring absolute rotational angular speed (γ′) and angular position (c) of the rotating gear (5) and feeding these measurements back to a setting input as input values.
Dependencies are inferred from the claim text.