Abstract: The present invention relates to a crane, particularly a crawler crane, whereby at least two different drive units can be alternately connected with the crane. The invention is additionally directed at corresponding drive units.

Abstract: The present invention relates to a crane, in particular to a crawler crane or mobile crane having at least one monitoring and simulation means by means of which a state of the crane can be monitored and/or simulated, wherein the monitoring and simulation means has at least one input means and at least one output means and wherein the actual state and/or state development of the crane and/or of the boom of the crane can be displayed by means of the monitoring and simulation means and/or a possible state and/or possible state development of the crane can be simulated and/or displayed.

Abstract: The present invention relates to a telescopable sliding beam device with a sliding beam box and at least one first sliding beam and at least one second sliding beam, which are telescopable into each other, wherein the second sliding beam is mounted in the sliding beam box so as to be steplessly telescopable, and wherein in a first supporting region the first sliding beam is retracted and a stepless adjustment of the sliding beam device can be carried out by shifting the second sliding beam. According to the invention, the first sliding beam furthermore is extended in a second supporting region and a stepless adjustment of the sliding beam device can be carried out by shifting the second sliding beam.

Abstract: The invention relates to a method for monitoring the crane safety of a crane with a variable support base and with a monitoring unit, wherein several safety criteria are monitored during crane operation, in that, for each criterion which is dependent on at least one parameter relating to the crane configuration and/or crane movement during crane operation, an admissible specific limit value is calculated during crane operation, and monitored for compliance. In addition, the invention relates to a method for operating a crane with a monitoring unit which calculates an admissible bearing load dependent on one or more modifiable parameters, during the operation of the crane, and a sensor system which detects the current modifiable parameters during crane operation, and makes them available to the monitoring unit, wherein one or more sensor values are modified before the calculation of the admissible bearing load, in order to determine the admissible bearing load for one or more future parameters.

Abstract: A method is used for synchronizing the speed of a hydraulic crane drive having at least one hydraulic consumer, which is fed with a variable volumetric rate of flow by way of at least one hydraulic variable displacement pump. The at least one hydraulic variable displacement pump is driven by way of a drive unit of the crane. By way of the crane control system, a swashplate angle of the at least one variable displacement pump is open and/or closed loop controlled as a function of the demanded volumetric flow rate for at least one consumer and/or on the basis of one additional parameter.

Abstract: The invention relates to a method of assembling a crane having a telescopic boom which has a coupling section, a telescopic cylinder supported therein and at least one telescopic section, wherein at least one telescopic section is transported to the site of deployment separately from the coupling section and the at least one separately moved telescopic section is drawn, in particular drawn slowly, into an outer section, in particular into the coupling section, in the assembly position by the telescopic cylinder by means of an auxiliary assembly head.

Abstract: This invention relates to a method for erecting a main boom of a truck crane, which at least consists of a telescopic boom, with a fly jib which is braced via bracing trestles and bracing rods, and with a spatial boom bracing. In accordance with the invention, the main boom is braced by means of the spatial bracing before being completely connected with the fly jib.

Abstract: The within invention relates to a crane with a boom slewable in a vertical pivoting plane and a bracing boom arrangement, particularly a derrick boom arrangement in which a luffing cable is arranged between the boom and the bracing boom arrangement, in which the luffing cable has at least two guying cables that run from two guying points arranged on the opposite side of the pivoting plane, which cables belong to the bracing cable arrangement, to the boom, in which the two guying cables are each movable by means of a winch and in which a mechanical coupling is provided between the two winches by means of which the movement of the two winches can be force coupled.

Abstract: The present invention relates to a method of moving a large mobile crane having a luffable boom system. In accordance with the invention, the boom system is luffed down into a largely horizontal position for moving and is supported on a support block of a construction machine or of a small mobile crane so that the large mobile crane can be moved together with the construction machine or the small mobile crane. The invention further relates to a system for carrying out the aforesaid method.

Abstract: The present disclosure relates to a crane, in particular to a modular mobile crane, with an under carriage, a support, and an upper carriage which comprises an upper carriage frame and a jib which can be separated from the upper carriage, wherein the under carriage comprises at least one connection point. According to the invention, the under carriage can be connected via the at least one connection point alternatively via at least one support-side connection point to the support, and to the upper carriage connected to said support, or via at least one jib-side connection point to the jib separated from the upper carriage.

Abstract: The present disclosure relates to a method for determining the admissible load capacity of a crane, in which the load capacity is determined in dependence on at least one first and one second parameter and which comprises a first step, in which the load capacity for the value of the first parameter with different values of the second parameter is determined by calculation or by interpolation or extrapolation on the basis of known values of the load capacity with specific values of the first parameter, and which comprises a second step, in which the determination of the load capacity for the second parameter is performed on the basis of the values of the load capacity determined in the first step for different values of the second parameter by calculation or by interpolation or extrapolation.

Abstract: The present invention relates to an angle-related method of monitoring crane safety during the setup procedure of a crane, wherein the crane has a sensor system and a crane control and the crane control receives one or more measured values from the sensor system during the setup procedure and compares the measured value or values received with at least one corresponding limit value and triggers a measure on an exceeding and/or falling below of the limit value or values.

Abstract: A lattice mast crane having a lattice mast boom which can be luffed up in a vertical luffing plane and which comprises a pivotal connection piece, a plurality of lattice pieces releasably connectable to one another, and a head piece, with the lattice mast boom having a two-strand or multi-strand region, wherein at least one side part is releasably arranged at the pivotal connection piece and the two-strand or multi-strand region is arranged directly or indirectly at the pivotal connection piece and/or directly or indirectly at least one side part.

Abstract: The present invention relates to a method of operating a crane having a movable undercarriage and a superstructure rotatably supported thereon with a luffable main boom and derrick boom arranged thereon, wherein an auxiliary crane having a telescopic boom is connected to the crane as derrick ballast and the derrick ballast radius is set via the telescopic boom of the auxiliary crane.

Abstract: Method for the assembly of a mobile crane, particularly a telescopic crane, at a construction site, having a main boom as well as at least one boom enhancement loaded on a transport in turn having at least one lattice section. The method includes the steps of moving the mobile crane and/or the transport, to coarsely align the crane main boom and at least one lattice section of the boom enhancement to each other, connecting the crane main boom to the lattice section by one or more traction elements, and raising the main boom, which results in traction being applied to the one or more traction elements, to align the axes of the junctions of the main boom and of the lattice section at least partially for the subsequent assembly.

Abstract: The present invention relates to a crane control system for controlling and/or for the hydraulic supply of hydraulic loads of a crane, as well as a crane having at least one crane control system.

Abstract: The present disclosure relates to a rotary joint for rotatable connection of the uppercarriage with the undercarriage of a crane, wherein they can each be connected with the uppercarriage on the one hand and the undercarriage on the other hand via a quick-release coupling.

Abstract: The present disclosure relates to a construction machine having an undercarriage; a superstructure rotatably supported relative to the undercarriage by a revolving roller connection; and a control system, wherein measuring devices are arranged in the revolving roller connection for the force measurement in the directions of pulling and compression, and the control system determines the force in the axis direction of the axis of rotation as well as the torque which is caused by the eccentricity of the force with respect to the axis of rotation from the detected measured values of the measuring devices. From this, improved monitoring of the operational safety and stability of such a construction machine is achieved.

Abstract: A crane, in particular a lattice mast crane, having a bottom hook block with a load suspension means, in particular a load hook, wherein the bottom hook block has at least one winch whose outgoing control rope is connected or connectable to the crane boom for securing and/or aligning the load position or bottom hook block position.

Abstract: The present disclosure relates to a crane with a travelling undercarriage, an uppercarriage rotatably mounted on the same with a luffing boom and derrick boom arranged on the same, and a ballast carriage connectable with the uppercarriage via a coupling element, wherein the ballast carriage is a standardized heavy-duty transport device with separate drive and separate drive controller, and wherein this drive controller can be influenced as a result of the movement of the crane.