Konecranes Global Corporation

Demag Cranes & Components Gmbh

Terex Mhps Gmbh

Spitznas Maschinenfabrik Gmbh

Terex Demag Gmbh

Christoph Passmann

Stefan Noll

Richard Kreisner

Thomas Schlierbach-Knobloch

Thomas Kohlenberg

Eberhard Becker

Gereon Imbusch

Gerd Spies

Jürgen Backsmann

Daniel Sogemeier

Ding Yuan Zhao

A crane, such as a bridge crane or gantry crane, having at least one horizontally extending crane girder, which is designed as a lattice girder having a plurality of braces and on which a crane trolley having a lifting device can be moved. At least some of the braces are planiform, and each of the planiform braces has a flat main surface, which extends transversely to a longitudinal direction of the crane girder. A first brace and a second brace form a brace pair and are arranged in an X-shape in relation to each other as viewed transversely to the longitudinal direction of the crane girder.

Crane, in particular bridge crane or gantry crane, having at least one crane girder

A crane, such as a bridge crane or gantry crane, having at least one horizontally extending crane girder, which is designed as a lattice girder having a plurality of braces and on which a crane trolley having a lifting device can be moved. At least some of the braces are planiform, and each of the planiform braces has a flat main surface, which extends transversely to a longitudinal direction of the crane girder. On each longitudinal side of the braces, a first cut-out and a second cut-out are provided in the main surfaces. The longitudinal sides of at least some of the planiform braces are free of edge bends at least between the first and second cutouts.

An arrangement of two rail segments, consisting of at least one mounting element disposed at each rail segment, and of at least one connector in contact with the mounting elements, by means of which the rail segments can be connected to each other at the end faces thereof, wherein each mounting element is attached to the corresponding rail segment by means of a welding seam. At least one end of the welding seam ends in a region on the rail segment outside of the mounting element.

Arrangement for connecting two rail segments

A load-receiving apparatus is provided in the form of a hook block of a lifting gear, and includes a hook having a shaft and a circumferential groove in which an annular retaining element engages. The annular retaining element is supported on a supporting surface of a suspension element of the load-receiving apparatus. The annular retaining element has the form of a sleeve, which expands starting from the shaft and continuing in the direction of the supporting surface. In order to create a secure load-receiving apparatus, the annular retaining element is designed in the form of a conical sleeve or a truncated cone, and has an exterior outer surface, an interior outer surface due to the sleeve's conical shape, an upper annular top surface, and a lower annular base surface.

Load-receiving means, in particular a hook block of a lifting gear

The invention relates to lifting gear having a drive unit (), a drive shaft (), which has a drive flange () fixable thereon and can be driven by the drive unit (), and a cable drum () that can be connected to the drive flange by means of a coupling, said coupling comprising at least one coupling element () engaging in a recess () in the drive flange () and in a hole () in the cable drum () to transmit torque. In order to equip a lifting gear having a drive unit comprising a motor and a gearbox with a coupling, which ensures simple assembly with a simple and space-saving design, according to the invention the coupling element () is movable and fixable radially from an assembly position into an operating position, in which the coupling element () connects the drive flange () to the cable drum () in a driveable manner.

Lifting gear

An extensible telescopic machine part such as a telescopic boom for an excavator has three extensible, telescopic elements. One of the telescopic elements carries a working unit at its free end remote from the other telescopic elements. The working unit is supplied with energy through flexible energy transmission lines. Actuators for causing telecopic relative movement of the telescopic elements are provided. The energy transmission lines extend inside the machine part and are arranged in a carrier track. The actuators are arranged off axis with respect to the telescopic elements to provide space for the carrier track. The carrier track extends from a forward end of the outer telescopic element to the rear end of the inner telescopic element, The carrier track is guided between the outer and median telescopic elements and forms a bight around the rear end of the inner telescopic element.

Growing community of inventors

Dortmund, Germany

Christoph Passmann