Hupfer, P.P.HupferBernd, A.A.Bernd2022-03-082022-03-082002https://publica.fraunhofer.de/handle/publica/305403Die Erfindung einer Antriebseinrichtung mit einem ueberlagerten Planetengetriebe und einer Kupplungs- sowie einer Bremsvorrichtung zur Erhoehung der Hubzahl in Umformpressen durch Erhoehung der Geschwindigkeit waehrend des Leerlaufs des Hubes.DE 19959395 A UPAB: 20010726 NOVELTY - The device has a flywheel drive connected via coupling shaft and planetary gear to the drive shaft of a press ram drive. The planetary gear has an overdrive transmission, and a sun wheel (2) and outer wheel (4) with the same direction of rotation. The override transmission is driven by the flywheel drive (20), and is formed by a toothed gear (9), which meshes with the outer wheel. The sun wheel is connected non-turnable to the coupling shaft (14). The outer wheel is either braked or connected to the overdrive transmission via a coupling-brake unit (13). USE - Esp. for mechanical forming press. ADVANTAGE - No-load stroke of press ram can be executed at higher speeds, flexibly variable working and idling phses.de608620670patent1999-19959395