Liebherr-werk Ehingen Gmbh

Erwin Morath

Edwin Cettinich

Peter Abel

Mikica Rafailovic

Joachim Treuer

Eduard Zink

Peter Bosler

The invention relates to a [crane], particularly crawler crane or mobile crane, with 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 comprise at least one input means and at least one output means, and wherein, by means of the monitoring and simulation means, the change in state, particularly the bearing load curve of the crane, and particularly also the movement of the crane and/or of the boom of the crane, can be represented at any time, and/or a possible state and/or a possible change in state of the crane, particularly the bearing load curve of the crane, can be simulated and/or represented.

Crane, particularly crawler crane or mobile crane

The present application relates to a mobile crane comprising a telescopic boom which has a hinged section and at least one telescopic section which can be telescoped out of it, or to a crawler-mounted crane. In accordance with one embodiment, as a position detection device, it has at least one transducer in the form of an inductively operating transponder, a receiver unit for the sensing of the position of the transducer, a control device for control in dependence on a signal of the receiver unit, as well as a signal transmission device in the form of a databus for the transmission of the signal data from the receiver unit to the control device.

Mobile crane

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.

Crane, in particular crawler crane or mobile crane

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.

Crane control system

A sensor for measurement of a desired variable of a medium includes a sensor having at least two measured value pick-ups and at least two processing units within a sensor housing. The measured value pick-up is defined as a part of the sensor which directly responds to a measured variable to be detected. Each measured value pick-up may be connected via a signal line to each processing unit so that the signal value representing the measured value can be transferred to the processing unit. The at least two measured value pick-ups pick up at least two measured values independently of one another and transfer them to their connected processing units. With this arrangement, the effective actual values of the measurement value to be checked is applied to both measured value picks-ups without time delay.

Sensor for measurement of desired variable of medium

The present invention relates to a mobile crane having means for wireless reception or for the determination of data identifying the location of the crane as well as having transmission means which are in communication with these means or can be connected to them, wherein the transmission means are configured such that they transmit the data identifying the location of the crane from the crane to a receiver in a wireless manner.

The present disclosure relates to a hoisting limit switch for limiting the maximum allowed hoisting height of a hoisting cable, wherein the hoisting limit switch includes a read-write device for reading and writing data, and a means from which the operating condition of the hoisting limit switch can be read out by the read-write device.

Hoisting limit switch and lifting device

A control system for a construction machine includes at least one sensor and at least one controller, wherein a serial connection exists between the sensor and the controller, and wherein at least one sensor and/or controller are of the two-channel or multi-channel type. Furthermore, this invention relates to a method for operating such control system for a construction machine.

Control system for construction machines and method for operating the control system

The present disclosure relates to a driving device for a crane, wherein the crane includes an undercarriage and an uppercarriage, with at least one undercarriage engine arranged in the undercarriage, which is an internal combustion engine, and with at least one uppercarriage drive, wherein the uppercarriage drive can be driven by means of a torque and/or power transmission device to be driven by the undercarriage engine. Furthermore, the present disclosure relates to a crane with such driving device.

Driving device for a crane

The present invention relates to a piston-cylinder unit with a piston with adjoining piston rod, which is movably mounted in a cylinder, wherein the piston and the piston rod have a cavity into which at least one rod protrudes, by means of which an electrically conductive connection can be made directly or indirectly.

Piston-cylinder unit

The present disclosure relates to a crane, preferably a crawler or truck crane, comprising a crane monitoring means for monitoring the operating condition of the crane, including a calculation unit and a control and display unit. In accordance with the present disclosure, there is additionally provided an operations planner with a separate monitor output, which includes a further calculation unit and which operates on the one hand as a device for planning the operation of the crane and on the other hand as a redundant crane monitoring unit in addition to the crane monitoring means.

Crane, preferably crawler or truck crane

A mobile crane has at least one memory unit in which limit curves or limit values are stored for various crane parameters and which should not be exceeded, or only exceeded by issuing an alarm signal, to ensure safe operation of the crane. Crane safety is ensured by monitoring the individual limit values of the various parameters and checking the current position of the extendable and retractable props which serve to support the mobile crane. Depending upon the actual position the supporting cylinders reach, the tilting edge of the mobile crane is determined as a limit value. Furthermore, depending on the individual parameters of the mobile crane and the suspended load, whether the operating condition of the mobile crane lies within this limit value is determined.

Mobile crane and method for operating a mobile crane

The present invention relates to a crane, preferably a truck crane, comprising a plurality of crane elements which are movable by actuators, a crane control unit for controlling and/or monitoring the movement of the crane elements, and at least one actuating switch for actuating the actuators. In accordance with the invention, the crane is characterized in that in the at least one actuating switch a logic module is integrated, by which the actuators can be driven directly corresponding to a respective switch movement, and the crane control unit can be connected with the logic module by a data transmission connection.

Growing community of inventors

Lauterach, Germany

Erwin Morath