Flender Gmbh

Siemens Aktiengesellschaft

Jean-Andre Meis

Arno Klein-Hitpass

Jan-Dirk Reimers

Markus Uhlending

Carsten Hussmann

A planetary transmission includes a ring gear holder and a ring gear for accommodating at least one planetary gear. The ring gear holder can be connected to a housing component at its end face, and a plurality of recesses for accommodating fastening means are embodied at an end face of the ring gear holder. Accommodated in at least one of the recesses is a hollow element, in which a fastening screw is accommodated. The hollow element establishes a positive-fit engagement between the ring gear holder and the housing component.

Planetary transmission, powertrain and wind turbine

The invention relates to a process for producing a large transmission gearwheel () consisting of a plurality of individual components, said process comprising the successive steps of: providing the individual components, which include at least one hub (), a disc wheel () and a toothed ring () produced from case-hardened steel; at least partially mechanically soft machining the individual components; joining the individual components using a beam welding process; case hardening the individual components which have been joined to one another, and hard machining at least the toothed ring (). The invention furthermore relates to a large transmission gearwheel produced by such a process.

Growing community of inventors

Duelmen, Germany

Jean-Andre Meis