Planetary gear unit
OwnerIngo SCHULZinventor
Life of this patent
Estimating the term…
Abstract
A planetary gear unit includes a first ring gear having toothing and a second ring gear having toothing and at least four double planets each having a first gear wheel having toothing and a second gear wheel having toothing, the first gear wheel and the second gear wheel of each double planet being disposed so as to be rotatable about a common shaft. The toothing of each first gear wheel engages in the toothing of the first ring gear, and the toothing of each second gear wheel engages in the toothing of the second ring gear. A number and a size of the double planets is selected such that a predetermined size of an interior space in a center of the planetary gear unit, a predetermined torsional stiffness of the planetary gear unit and/or a predetermined load-bearing capability of the planetary gear unit is provided.
Claims11
A planetary gear unit comprising:
- a first ring gear having toothing and a second ring gear having toothing, and
- at least four double planets each having a first gear wheel having toothing and a second gear wheel having toothing, the first gear wheel and the second gear wheel of each double planet being disposed so as to be rotatable about a common shaft,
- wherein the toothing of each first gear wheel engages in the toothing of the first ring gear, and the toothing of the each second gear wheel engages in the toothing of the second ring gear, and
- wherein a number and a size of the double planets is selected such that a predetermined size of an interior space in a center of the planetary gear unit, a predetermined torsional stiffness of the planetary gear unit and/or a predetermined load-bearing capability of the planetary gear unit is provided.
The planetary gear unit according to the at least four double planets comprise at least six double planets.
Dependencies are inferred from the claim text.