POWER PLANT PLANETARY GEARBOX Russian patent published in 2018 - IPC F16H57/08 

FIELD: machine building.

SUBSTANCE: invention relates to machine building and can be used in high-loaded gear reducers. Power plant planetary gearbox comprises housing, internal engagement driven gear connected to the output shaft, mounted on the fixed axes toothed satellites and engaged with the satellites sun gear, engaged with the cantilever mounted hollow drive shaft, and having at least one curved portion made in the drive shaft longitudinal cross-section in the form of trapezoidal bend with the cylindrical outer surface and side diaphragms, smoothly coupled to the drive shaft and trapezoidal bending cylindrical outer surfaces. Diaphragms thickness decreases from the drive shaft axis to the periphery. Drive shaft curved section is provided with the rigidly connected to the side diaphragms internal jumper. Inner jumper can be made in the form of annular partition or in the form of separate pins uniformly arranged around the trapezoidal bend cross section circumference.

EFFECT: increase in the planetary gear reducers gears loads distribution uniformity.

3 cl, 4 dwg