Patent ID: 11873796
Assignee: FLENDER GMBH
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 0:
1. A planetary gearbox configured as a multiple planetary gearbox for a wind power installation, said planetary gearbox comprising:
a planetary carrier including a first carrier cheek and a second carrier cheek;
planetary gears mounted rotatably on the first carrier cheek and the second carrier cheek via bearing pins, respectively;
an internal gear meshing with the planetary gears, with an assembly clearance being configured between a cheek external diameter of both the first carrier cheek and the second carrier cheek and an internal diameter of the internal gear; and
a planetary carrier spider configured to position the first carrier cheek and the second carrier cheek at a defined spacing with respect to one another, said planetary carrier spider having a radially outwardly pointing outer side which extends at a greater spaced-apart relation radially inward from a radially inner tip circle radius of an internal toothing system of the internal gear than the first carrier cheek and the second carrier cheek, in order to reliably avoid contact with internal toothing system of the internal gear even with consideration of manufacturing and production tolerances and possible thermal expansion effects or centrifugal force effects, wherein the cheek external diameter is to be selected to be so great that the carrier cheeks can only just be moved in the axial direction on the radial inside past the internal toothing system of the internal gear during assembly; and
wherein the radially outwardly pointing outer side of the planetary carrier spider is arranged radially outside a root circle radius of an external toothing system of the corresponding one of the planetary gears.