Planetary Gearset and Transmission and Vehicle

Patentradars sammanfattning

TRATON AB discloses a planetary gearset in which all gear elements (ring, sun, and planet gears) use helical teeth, and the sun-gear shaft (first shaft) couples to a gearbox shaft (second shaft) via a helical splined connection rather than conventional straight splines. The helix hand and angle of the splined connection are chosen so that the axial force generated at the helical splines opposes and partially or fully cancels the axial force generated at the helical sun-gear teeth, thereby reducing net axial load on the gearbox bearings. The invention extends to a transmission in which the second shaft is the gearbox input or output shaft, and to a vehicle incorporating such a transmission, targeting heavy-duty truck applications.

AI-genererad och redaktionellt processad.