Siemens Aktiengesellschaft

A. Frier, Flender Ag

Alfons Böing

Arno Klein-Hitpass

Ralf Martin Dinter

Jan-Dirk Reimers

Axel Möhle

Roland Zeichfüssl

Friedrich Schöberl

Jürgen Draber

Frank Kretschmann

Arne Grüning

Hans Joachim Morhard

Oliver Memminger

Roland Zeichfüßl

A drive system having an integrated transmission and motor/generator unit for a wind turbine includes a transmission output shaft designed as a hollow shaft, which receives a sun shaft of an output-side planetary gear stage and is connected thereto. The transmission output shaft comprises a transmission-side end section of an insert shaft which is concentrically arranged within a rotor hollow shaft. The transmission output shaft additionally has a bearing for receiving radial and axial forces. The motor/generator unit has two dedicated bearings. One bearing thereof is a transmission-side bearing. In addition, a rear-side generator bearing is provided.

Drive system for a wind turbine

A transmission for a high-output two-shaft extruder, comprising a speed-reduction gear (1) and a distribution gear (2). The distribution gear has one take-off shaft (4) driven directly by the speed-reduction gear and another take-off shaft (5) driven by the first take-off shaft in conjunction with two distributor shafts (11 & 12), one on each side. The speed-reduction gear is a planetary gear, its sun wheel (21) driven by a main motor and its ring (27) by a superimposition motor, and its planetary bearing (25) coupled to the distribution gear's first take-off shaft. The main motor operates at a constant speed and is designed to handle most of the total power demand. The superimposition motor is regulable or discontinuously variable in speed and is designed to handle a fraction of the total power demand.

Arrangement for a double shaft extruder

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Bocholt, Germany

Alfons Böing