Power branching transmission

US4136580A · kind A · utility

Assignee

• Hermann Berstorff Maschinenbau GmbH · DE

Inventors

• Wilhelm Brand · Hannover, DE
• Manfred Dienst · Neuss, DE
• Adolf Herbert · Hannover, DE
• Gunther Henjes · Hannover, DE

Key dates

• Filing date: Jun 16, 1977
• Grant date: Jan 30, 1979
• Expiry date: Jun 16, 1997

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/19628
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A power branching transmission, having two parallel output shafts, each of which carries a rotationally rigidly connected ouptput drive pinion, the output drive pinions being axially offset with respect to one another and each meshing with a respective rotatable ring gear and with a respective central gear wheel disposed in the respective ring gear, a pair of driving pinions rotationally rigidly disposed on parallel drive shafts and each meshing with a respective one of the ring gears and a respective one of the central gear wheels, each of the ring gears and each of the central gear wheels having at least one coaxial race with at least one supporting roller disposed between the races and bracing the respective ring gear and associated central wheel with respect to one another. No housing is required, tooth forces of the ring gears and central gears being accommodated by the supporting rollers and not transmitted to the radial bearings of the input end output shafts.