Terex Cranes Germany Gmbh

Terex Global Gmbh

Terex Demag Gmbh

Tadano Demag Gmbh

Atecs Mannesmann Ag

Terex-demag Gmbh & Co. Kg

Demag Mobile Cranes Gmbh & Co., Kg

Alfons Weckbecker

Fritz-Botho Köster

Rüdiger Zollondz

Günter Karp

Frank Schnittker

Werner Rutz

Hans-Peter Franzen

Ingo Noeske

Ingo Nöske

Axel Beckmann

Marc Krebs

Manfred Kretschmer

Thorsten Helwes

Benjamin Schaal

Walter Zimmer

Martin Zwifka

Steffen Helfrich

Ruediger Zollondz

Guenter Karp

Nico Fragetti

Ralf Pein

Volker Noll

A crane having an undercarriage, a superstructure pivotable about a slewing axis relative to the undercarriage, a counterweight unit and a counterweight adjustment device. The counterweight adjustment device includes a telescopic frame which is fastened to the superstructure and has a telescopic longitudinal member, a counterweight unit arranged to be displaceable along the frame, a drive unit for displacing the counterweight unit and a kinematic unit to telescope the frame in a driven manner. A jetty is fastened to a rear end, remote from the slewing axis, of the longitudinal member, the counterweight unit is displaceable along the frame in the region of the superstructure as far as the jetty, the counterweight unit is able to be fastened to the jetty and the counterweight unit is able to be telescoped in and out on the jetty with the frame.

Crane having a counterweight adjustment device, and method for adjusting a counterweight on a crane

A crane having at least one jib system, a sensor unit for detecting a deformation of the jib system transversely to a load plane, and to an activatable adjustment unit for influencing the deformation of the jib system transversely to the load plane.

Crane and method for influencing a deformation of a jib system of said crane

A crane includes an under carriage, an upper carriage, a rotary connection, by means of which the upper carriage is connected with the under carriage to rotate around an axis of rotation, a jib to be connected with the crane and erected around a jib axis, and a device connecting the upper carriage with the under carriage with at least one force-transmitting element. The at least one force-transmitting element is designed passively in such a way that it transmits forces between the upper carriage and the under carriage when a pre-determined load condition of the rotary connection is reached.

Crane, device and method for deflecting forces on a crane

A large mobile crane including an undercarriage. The undercarriage includes a middle section between tracks, wherein a distance between the tracks can be increased or decreased by the insertion or removal of expansion parts. The two tracks are connected on opposite sides of the undercarriage to permit movement of the large mobile crane. The undercarriage also includes a drive unit, a superstructure, one or more control stations, at least two main booms, at least one derrick boom, and at least two lifting devices and counterweights. The counterweights are either arranged separately of or mounted on the undercarriage. The large mobile crane further includes a circular track, and support rollers attached to the superstructure, wherein the support rollers ride on the circular track, and wherein the circular track is an integral part of the expansion parts.

Large mobile crane

A sprocket for a crawler undercarriage comprises a plurality of sprocket teeth for engagement with a crawler track, wherein the sprocket teeth are arranged in a plurality of similar circumferential segments along the sprocket, and wherein an odd number of circumferential segments is provided.

Sprocket for a crawler undercarriage, crawler undercarriage having such a sprocket, and crane having such a crawler undercarriage

A level-controllable crawler crane includes two crawler supports with rotating crawlers, which crawler supports are connected by a transversal bridge. A superstructure of the crawler crane includes a crane jib pivotable about a vertical axis and connected to the transversal bridge. A pivotable articulation connects the transversal bridge to the crane superstructure. At least one of the crawler supports is connected to the transversal bridge by a double link having a lower and an upper link. The lower link is articulated on the crawler support by a crawler support lower pivotable axis and on the transversal bridge by a transversal bridge lower pivotable axis. The upper link is articulated on the crawler support by a crawler support upper pivotable axis and on the transversal bridge by a transversal bridge upper pivotable axis. A drive pivots the links about the pivotable axis associated therewith.

Crawler crane and method for fine-tuning a basic operating position of such a crawler

A method for influencing a cable winch force acting on a cable drive, comprises the method steps providing a cable drive with a drivable winch and with a cable that can be wound on the winch, providing a device for producing a traction sheave cable force on the cable, determining an outer cable force, predetermining a cable drive operating state, providing a control-regulating unit to influence the traction sheave cable force, producing a control-regulating variable by means of the control-regulating unit depending on the outer cable force and the predetermined cable drive operating state, producing the traction sheave cable force by means of the device and influencing the traction sheave cable force by means of the control-regulating unit in such a way that the cable winch force acting on the cable drive can be controlled depending on the respective cable drive operating state and the outer cable force, wherein the device is a traction sheave drive, wherein a four-quadrant operation of the traction sheave drive is reproduced by means of the control-regulating unit, and wherein the four traction sheave drive operating states are no-load lifting, no-load lowering, load lifting and load lowering.

Method for influencing a cable winch force acting on a cable drive and device for carrying out a method of this type

A rotary connection for a work machine, such as a crane, includes a rotational axis, an inner bearing ring, an outer bearing ring and at least three bearing body ring arrangements arranged between the bearing rings with a plurality of respective bearing bodies. At least one of the bearing body ring arrangements is configured to at least partially withstand forces directed in the radial direction to the rotational axis. At least two of the bearing body ring arrangements are configured to at least partially withstand forces directed parallel to the rotational axis and are arranged adjacent to and spaced apart from one another along the rotational axis. The at least two bearing body ring arrangements are configured to at least partially withstand forces directed parallel to the rotational axis in each case establish a direction of action and are arranged spaced apart from one another along the direction of action.

Rotary connection for a work machine

A crane, in particular a large crane, including a power consumer system for providing energy, a primary energy source for feeding primary energy into the power consumer system, at least one secondary energy source, independent of the primary energy source, for feeding secondary energy into the power consumer system, at least one energy storage unit arranged locally on the crane and is, in particular, associated with the at least one crane component and connected to the power consumer system for storing primary energy and/or secondary energy, at least one drive motor connected to the power consumer system for operating at least one crane component and a secondary energy source configured such that energy returned from the crane operation is at least partially fed as secondary energy into the power consumer system. The at least one crane component is configured as a secondary energy source for energy recovery.

Crane and method for operating a crane using recovery of energy from crane operations as a secondary energy source

The object of the invention is to reduce the amount of investment required for the usage-optimized configuration and installation of large cranes. This object is achieved by a large mobile crane having an undercarriage, a drive unit (), a revolving superstructure (), one or more control stations (), at least two jibs (), at least one counter-jib (), at least two lifting arrangements () and counterweights arranged separately or on the basic structure, characterized in that the load-bearing parts of the crane () and the mobility-specific parts () are of modular design and can be supplemented by exchangeable and/or supplementary parts, wherein the structural units (modules) used essentially correspond, or are similar, to existing standard-crane components, and an increase in load-bearing capacity can be achieved by arranging a number of these in the large crane.

The invention relates to a crawler crane comprising two crawler supports () with rotating crawlers (). Both crawler supports () are connected by a transversal bridge (). A superstructure () of the crawler crane comprises at least one crane jib that can pivot about a vertical axis and is connected to the transversal bridge (). A pivotable articulation connects the transversal bridge () in a pivotable manner to the crane superstructure (). At least one of the crawler supports () is connected to the transversal bridge () by means of a double link (). A lower link () of the double link () is articulated on the crawler support () by means of a crawler support lower pivotable axis () and on the transversal bridge () by means of a transversal bridge lower pivotable axis (). An upper link () of the double link () is articulated on the crawler support () by means of a crawler support upper pivotable axis () and on the transversal bridge () by means of a transversal bridge upper pivotable axis (). A drive (), in particular motorised drive, is used to pivot at least one of the two links () about the pivotable axis () associated therewith, the result being a level-controllable crawler crane, in which the expenditure for adjusting a base-work position is reduced.

Crawler crane and method for fine-tuning a basic operating position of such a crawler crane

A mobile crane includes an undercarriage with a middle section and two parallel crawler carriages; a superstructure on which a boom is mounted, the superstructure being connected to the undercarriage by a rotary joint; two longitudinal outriggers connected to the undercarriage and extending in the longitudinal direction between the crawler carriages; and two transverse outriggers connected to the undercarriage and extending outside the crawler carriages. One of the longitudinal outriggers has an end with a transverse beam supported by spaced apart outrigger cylinders which provide an extended tipping edge to further stabilize the crane.

Crane, in particular mobile crane with a narrow track and enlarged supporting base

A large mobile crane includes a revolving superstructure, a main boom hinged to the superstructure, and a derrick boom hinged to the superstructure. A modular counterweight system includes a traveling counterweight and a non-traveling counterweight connected to a crossbeam suspended from the distal end of the derrick boom so that the non-traveling counterweight is activated before the traveling counterweight.

Growing community of inventors

Zweibrücken, Germany

Alfons Weckbecker