Liebherr Werk Nenzing Gmbh | Date: 2013-03-07
The present disclosure relates to a crane controller for a crane which includes a hoisting gear for lifting a load hanging on a cable, with an active heave compensation which by actuating the hoisting gear at least partly compensates the movement of the cable suspension point and/or of a load deposition point due to the heave, and an operator control which actuates the hoisting gear with reference to specifications of the operator, wherein the division of at least one kinematically constrained quantity of the hoisting gear is adjustable between heave compensation and operator control.
Liebherr Werk Nenzing GmbH | Date: 2013-03-07
The present disclosure shows a crane controller for a crane which includes a hoisting gear for lifting a load hanging on a cable, wherein the crane controller has a cable force mode in which the crane controller actuates the hoisting gear such that a setpoint of the cable force is obtained.
Liebherr Werk Nenzing GmbH | Date: 2014-03-18
The present disclosure relates to a holding device for storing holding rods on a crane, with at least two holders, at least one securing piece and at least one lock, wherein the at least two holders comprise at least one toothed connecting surface each and at least four lead-throughs each, at least one of which each is designed as oblong hole. According to the present disclosure, the at least two holders are connectable with each other via a connector through the one oblong hole each and are connectable with the crane through at least one further lead-through each, wherein the at least two holders together comprise a common U-shaped deposition region for accommodating and horizontally fixing holding rods, and wherein the holding rods are vertically fixable by means of the at least one securing piece and the at least one lock inside the U-shaped deposition region.
Liebherr Werk Nenzing GmbH | Date: 2015-06-02
The present disclosure relates to a method for controlling the orientation of a crane load, wherein a manipulator for manipulating the load is connected by a rotator unit to a hook suspended on ropes and the skew angle L of the load is controlled by a control unit of the crane, characterized in that the control unit is an adaptive control unit wherein an estimated system state of the crane system is determined by use of a nonlinear model describing the skew dynamics during operation.
Liebherr Werk Nenzing Gmbh | Date: 2013-02-26
The present disclosure relates to a hydraulic system for a crane with at least one hydraulic circuit, which comprises at least one hydraulic consumer, and a constant pressure network, wherein the at least one hydraulic circuit is coupled with the constant pressure network via at least one pressure reducer, whereby a higher volume flow with low pressure as compared to the constant pressure network can be generated in the hydraulic circuit.