Demag Cranes & Components Gmbh

Terex Demag Gmbh

Michael Dammer

Klaus-Jürgen Winter

Heinrich Flaig

Thomas Kohlenberg

Erik Appel

Jens Fery

Christoph Passmann

Rolf Heintz

Klaus Conrad

Martin Bauer

Sascha Scholz

Mario Rübel

Steffen Holzer

Uwe Seel

A crane trolley, especially a single-rail trolley with a short overall height, with a traveling mechanism frame () having a hoisting mechanism (), which can travel by running wheels () on a rail, especially a lower flange () of an essentially horizontal beam (), wherein at least one running wheel () can be driven, and a friction roller () interacting with the driven running wheel () is arranged on the underside () of the rail. In order to create a crane trolley that guarantees a reliable reduction in the slippage of the driven running wheel () with a simple design, a pair of friction rollers () is provided, which may be positioned against the underside () of the rail by adjusting the spacing from each other via a common pressing mechanism.

Crane trolley with low overall height

The invention concerns a hoisting device with a drive unit () including a motor and a transmission, a drive shaft () which can be driven by the drive unit (), with drive flange () which can be secured to it, as well as a cable drum () which can be connected to the drive flange (), wherein the torque of the drive shaft () can be transmitted by a coupling to the cable drum (), wherein the coupling consists of at least one coupling element () arranged essentially by form fitting between the drive flange () and the cable drum (), being constructed from individual coupling segments (), which have drive cams () pointing radially inward and outward on both sides, which engage with corresponding recesses () of the two adjoining structural parts () that can be coupled together for the torque transmission. In order to create a hoisting device whose coupling reliably equalizes the alignment errors with a simple and space-saving construction, the invention proposes that the coupling segments () be arranged on the drive cams () and extend essentially between the drive flange () and the cable drum ().

Hoisting device

Growing community of inventors

Wetter, Germany

Michael Dammer