Patent ID: 8678967

Claim:
A power split gearbox, comprising: a mechanical power branch and a hydrostatic power branch arranged in parallel to one another and in contact with a common drive shaft, wherein: the hydrostatic power branch includes a hydraulic motor coupled to a hydraulic pump, the hydrostatic power branch is connected to the drive shaft via a gearwheel stage, branched power from the mechanical power branch and the hydrostatic power branch is routed together into a gear drive arranged on an end side and connected subsequently to an output shaft, the mechanical power branch includes a first epicyclic gear mechanism with a first sun gear, first planetary gears and a first internal gear and includes a second epicyclic gear mechanism with a second sun gear, second planetary gears, and a second internal gear, the first sun gear of the first epicyclic gear mechanism is positioned directly on the drive shaft, the second sun gear of the second epicyclic gear mechanism is in contact with the gear drive via a sun gear shaft, the first and second planetary gears are arranged coaxially and mounted on a common planetary carrier shaft, the planetary carrier shaft is mounted on a side of the first epicyclic gear mechanism via a planet spider in the first internal gear of the first epicyclic gear mechanism, a clutch is arranged on a side of the second epicyclic gear mechanism, and the second internal gear is configured to connect to the sun gear shaft by way of the clutch.