Liebherr-werk Ehingen Gmbh

Stefan Windbacher

Julian Wehrstedt

Roland Bohnacker

Uwe Frommelt

Ulrich Wiedemann

Oliver Ruoss

Hans-Joachim Wenger

The disclosure relates to a method for determining the number of rope reevings of a pulley block with a top block and a bottom block, wherein the rope path of at least one rope line of the pulley block, which is covered during a time window, is detected and compared with at least one rope path of a further rope line covered within the time window and/or with the height difference between top block and bottom block changed within the time window, in order to determine the number of rope reevings of the pulley block.

Method for determining the rope reeving of a pulley block

The present invention relates to a crane comprising a main boom and a rearwardly directed derrick boom for bracing the main boom, wherein a suspended ballast is directly or indirectly attached to the derrick head via connecting means, wherein at least one luffable, rearwardly aligned ballast adjusting boom is provided, which acts on the connecting means and influences the suspended ballast radius by its luffing angle.

Crane with adjustable suspended ballast

A measuring device for load sensing in a lifting-cable-based hoist, in particular a crane, having at least one pulley for deflecting the lifting cable of the hoist, a fastening means in the form of a cable loop, at the end of which the pulley is mounted so as to be rotatable about its roller axis, and at least one measuring element for sensing a force applied to the pulley.

Measuring device for load measurement in a hoist

The invention relates to an apparatus for weighing the hook load of a crane, wherein different measurement accuracies can be set at the apparatus, comprising at least one measurement device, at least one retaining pin, and at least one coupling section. The invention is additionally directed to a hook block and to a crane having a corresponding apparatus.

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Ulm, Germany

Stefan Windbacher