Liebherr-werk Nenzing Gmbh

Mathias Schneller

Klaus Schneider

Martin Amann

Oliver Sawodny

Sebastian Kuechler

Jürgen Sonderegger

Sebastian Küchler

Oliver Prof Sawodny

The present disclosure relates to a system for determining the load mass of a load carried by a hoist cable of a crane, said system comprising a measurement arrangement for measuring the cable load in the hoist cable and a calculation unit for determining the load mass on the basis of the cable force, wherein the calculation unit has a compensation unit which describes and at least partly compensates the effect of the indirect determining of the load mass via the cable force in a model.

System for determining the load mass of a load carried by a hoist cable of a crane

The present invention relates to a system for the automatic detection of load cycles of a machine for the transferring of loads, wherein the machine includes a lifting apparatus for the raising of the load and a transport apparatus for the horizontal movement of the load, comprising: a load change detection for the automatic detection of a load change at least on the basis of the output signals of a lifting force measurement apparatus, a load position detection which detects the position of the load in at least a horizontal direction and a load cycle detection for the automatic detection of a load cycle, wherein the load cycle detection takes place at least on the basis of the output signals of the load change detection and of the load position detection. In accordance with the invention, the load cycle detection stores the position of the load as the load pick-up point when a positive load change was recognized and evaluates the positive load change as the start of a new load cycle on the basis of a query as to whether the load has been moved a predetermined distance from the load pick-up point in the horizontal.

System for the automatic detection of load cycles of a machine for the transferring of loads

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Bludenz, Austria

Mathias Schneller