Abstract: The present invention relates to a device for measuring mechanical quantities, in particular for detecting tensile forces, thrust forces and bending deformations, as well as to a method for measuring mechanical quantities and to the use of a device for measuring mechanical quantities.

Abstract: The present invention relates to a crane for handling a load hanging on a load cable, comprising a slewing gear for rotating the crane, a luffing gear for luffing up the boom, and a hoisting gear for lowering or lifting the load hanging on the load cable, with a control unit for calculating the actuation of slewing gear, luffing gear and/or hoisting gear, wherein the calculation of the actuation commands for actuating slewing gear, luffing gear and/or hoisting gear is effected on the basis of a desired movement of the load indicated in Cartesian coordinates.

Abstract: The present invention relates to a crane control for the control of a hoisting gear of a crane which takes account of oscillation dynamics based on the elasticity of the hoist rope on the control of the hoisting gear and reduces them by a suitable control of the hoisting gear.

Abstract: The present invention comprises a method for the control of a drive of a crane, in particular of a slewing gear and/or of a luffing mechanism, wherein a desired movement of the boom tip serves as an input value on the basis of which a control parameter for the control of the drive is calculated, characterized in that the oscillation dynamics of the system comprising the drive and the crane structure are taken into account in the calculation of the control parameter to reduce natural oscillations. The present invention furthermore comprises a method for the control of a hoisting gear of a crane, wherein a desired hoisting movement of the load serves as an input value on the basis of which a control parameter for the control of the drive is calculated.

Abstract: The present invention relates to a hydraulic system with a feed pump for feeding hydraulic fluid, wherein the feed pump is driven by a hydraulic drive motor. The invention furthermore comprises a method for feeding hydraulic fluid into a hydraulic system via a feed pump, wherein the feed pump is driven by a hydraulic drive motor.

Abstract: The present invention relates to a piling and drilling rig having a leader, a deflection apparatus for the deflection a rope which is pivotally connected to the head of the leader in a manner pivotable between at least one transport position and at least one working position, with the deflection apparatus being rotatable about an axis standing obliquely on the axis of extent of the leader.

Abstract: A method for controlling the orientation of a crane load is described, wherein a manipulator 416 for manipulating the load is connected by a rotator unit to a hook suspended on ropes 410 and the rotational angle ?L of the load is controlled by a control unit using the moment of inertia JL of the load as most important parameter. The control unit is an adaptive control unit wherein the moment of inertia JL of the load is identified during operation of the crane based on data obtained by measuring the state of the system.

Abstract: A control system for a boom crane, having a tower and a boom pivotally attached to the tower, a first actuator for creating a luffing movement of the boom, a second actuator for rotating the tower, first means for determining the position rA and/or velocity {dot over (r)}A of the boom head by measurement, second means for determining the rotational angle ?D and/or the rotational velocity {dot over (?)}D of the tower by measurement, the control system controlling the first actuator and the second actuator. In the control system of the present invention the acceleration of the load in the radial direction due to a rotation of the tower is compensated by a luffing movement of the boom in dependence on the rotational velocity {dot over (?)}D of the tower determined by the second means. The present invention further comprises a boom crane having such a system.

Abstract: The invention relates to a method for the transfer of a load hanging at a load rope of a crane or excavator comprising a slewing gear, a luffing mechanism and a hoisting gear comprising a computer-controlled regulator for the damping of the load oscillation which has a trajectory planner, a disturbance observer and a state regulator with a pre-control, wherein the working space is first fixed by selection of two points, with one of the two points being fixed as the destination point by direction presetting by means of the hand lever and with the nominal speeds for the slewing gear and the luffing mechanism being preset by the hand lever signals.

Abstract: The present disclosure relates to a device for lifting and lowering a load in water, including a hoisting gear with a first hoisting rope and a storage drum with a second hoisting rope, which preferably are arranged on a floating unit. In accordance with the present disclosure, a hoisting gear frame is fastened to the first hoisting rope, whose buoyancy in water is variably adjustable. Furthermore, the present disclosure relates to a method for lifting and lowering a load in water by using such a device.

Abstract: The present invention relates to a tracked traveling gear with two drive units per chain, wherein at least one of the drive units is linearly movable and pretensionable against the traveling gear frame. In an embodiment the drive unit is asymmetrically mounted to a supporting element which is linearly movable and pretensionable against the traveling gear frame. The drive unit includes a tumbler which is laterally detachable and removable from the drive unit while the drive unit is mounted to the travelling gear frame.

Abstract: The invention concerns a crane or excavator for traversing a load hanging from a load cable, which is movable in three spatial directions. The crane or excavator has a computer-controlled regulation for the damping of load swings, which contains a path planning module, a centripetal force compensation unit and at least one shaft regulator for the rotating gear, one shaft regulator for the luffing gear and one shaft regulator for the lifting gear.

Abstract: The present application relates to a loading unit and/or lifting unit, in particular a reach stacker, comprising one or more pick-ups for the detection of at least one operating parameter influencing the standing safety of the unit and comprising a calculating unit in communication with the pick-up(s) which has means by means of which a maximum permitted value of an operating parameter of the loading unit and/or lifting unit for the ensuring of the standing safety is determined in dependence on one or more of the detected operating parameters.

Abstract: The present disclosure relates to a commercial vehicle with a control unit connected with the drive of the commercial vehicle and to a method for controlling a commercial vehicle.

Abstract: The present application relates to a telescopic loader, in particular a reach stacker, having a steering command input device, at least one pick-up to sense the steering angle and a processor unit which is in communication with the steering command input device and with the at least one pick-up and which generates a pre-set signal which can be forwarded to a steering actuator.

Abstract: A crane, in particular to an offshore crane, having a hoist rope winch, a hydraulic hoist winch drive and an overload protection which is connected to the hoist winch drive and which, when a predetermined permitted limit load is reached, permits a drawing off of the hoist rope from the hoist rope winch under a predetermined variable restoring force dependent on the radius and/or the permitted working load of the crane. A decoupling of the hoist winch drive and thus a mechanical separation of the powertrain between the hoist rope winch and the hoist winch drive is therefore dispensed with and instead the retention force varying in dependence on the radius and/or the respectively permitted working load of the crane is provided by the hoist rope winch drive motor.

Abstract: The disclosure includes a safety method for the lifting and/or transporting of a common load using a plurality of cranes, comprising the steps: determining of possible damage incidents for movement vectors of the cranes; activation of an alarm function if predetermined movement vectors result in damage incidents and/or limitation of the movement vectors used for the control of the cranes to those movement vectors which do not result in damage incidents in any of the cranes. Furthermore, a corresponding control method as well as a safety system and a control system are provided.

Abstract: A method for controlling the orientation of a crane load is described, wherein a manipulator 416 for manipulating the load is connected by a rotator unit to a hook suspended on ropes 410 and the rotational angle ?L of the load is controlled by a control unit using the moment of inertia JL of the load as most important parameter. The control unit is an adaptive control unit wherein the moment of inertia JL of the load is identified during operation of the crane based on data obtained by measuring the state of the system.

Abstract: The present application relates to a mobile conveying vehicle comprising axles rigidly arranged on a support frame, an operator's cabin and a series of units and additional unit parts such as an engine, pumps, a radiator, hydraulic tank and/or fuel tank. In accordance with the application, the operator's cabin and the units with additional unit parts are mounted on a common frame construction. The frame construction is uncoupled from the support frame.

Abstract: A crane planner for planning an operation of a crane, in particular a crawler crane, with a central planning unit which comprises a central database with data on the usable cranes and a calculation module for calculating the load moments occurring during the operation, wherein the simulation and calculation of the operations is executed by the central planning unit and the input and output of data is effected via clients, the clients communicating with the central planning unit via the Internet.