Gearbox assembly with gearbox means for speed overlap

摘要

A gearbox assembly, in particular for a wheel drive of a vehicle with a hydrostatic gearbox (2) having at least one downstream planetary stage (3), wherein coupling the planetary stage (3) to the hydrostatic gearbox (2) is via intermediate gearbox means for speed overlap within the planetary stage (3), by having, according to a first driving mode, the sun gear (3b) of the single planetary stage (3) in effective interaction with a ring gear (3a) of the planetary stage (3) via a first coupling (4), so that the output speed of the planetary stage (3) is a linear function of the output speed of the hydrostatic gearbox (2) and that, according to a second driving mode, the ring gear (3a) is in effective interaction with the hydrostatic gearbox (2), wherein, at the same time, the sun gear (3b) is in effective interaction with a gearbox input shaft (1) via a second coupling (5) so that as a consequence of power distribution, the speeds of the ring gear (3a) and the sun gear (3b) overlap.