Planet wheel carrier for a planetary gear

摘要

A planet wheel carrier comprises first and second end-sections for supporting shafts of planet wheels (113-114) of a planetary gear so that geometrical rotation axes of the planet wheels are pithed at substantially uniform intervals on a periphery of a circle. The planet wheel carrier comprises a support structure connected to outer rims of the first and second end-sections and located between the first and second end-sections in the axial direction and between the planet wheels in the circumferential direction. The support structure is so far from the geometrical rotational symmetry axis of a sun shaft (111) of the planetary gear and the geometrical rotation axes of the planet wheels are so near to the rotational symmetry axis of the sun shaft that the diameter (D) of the planet wheels is capable of being at least 90% of a distance (d) between the geometrical rotation axes of adjacent planet wheels.

主权项

1. A planet wheel carrier for a planetary gear, the planet wheel carrier being suitable for supporting at least four planet wheels and comprising:
a first end-section for supporting first ends of a plurality of shafts of planet wheels of the planetary gear so that geometrical rotation axes of the planet wheels are pithed at substantially uniform intervals on a periphery of a circle, a second end-section for supporting second ends of the shafts of the planet wheels, and a support structure connected to the first and second end-sections and located between the first and second end-sections in an axial direction of the planet wheels and between the planet wheels in a circumferential direction of the planet wheel carrier,
wherein the support structure is connected to outer rims of the first and second end-sections and configured to be so far from a geometrical rotational symmetry axis of a sun shaft of the planetary gear and the geometrical rotation axes of the planet wheels are configured to be so near to the geometrical rotational symmetry axis of the sun shaft that a maximum diameter of the planet wheels is capable of being at least 90% and less than 100% of a distance between the geometrical rotation axes of adjacent ones of the planet wheels,wherein the first end-section is attached to the support structure so that the first end-section is non-destructively detachable from the support structure, andthe first end-section comprises separate sectors each of which comprises a portion for supporting at least one of the first ends of the shafts of the planet wheels and being attached to the support structure so that each of the sectors is non-destructively detachable from other ones of the sectors and from the support structure.