Helicopter rotor transmission
AssigneeKopter Group AG
InventorsRoman Köstli, Martin Stucki
Life of this patent
Estimating the term…
Abstract
A helicopter rotor transmission in which the average lubricant monitoring and replenishment intervals are to be significantly increased. The helicopter rotor transmission has a central cavity, in which runs a bearing mast that is fixed in a locationally and rotationally manner, which is held passing through the gear housing at least partially in the direction of the central axis. An internally toothed gear ring of a rotatable rotor mast can be rotated about the central axis, with fixed rotation of the planetary gears about their planetary gear axes, such that the rotor mast can be set in rotation by means of a gear ring driver attached to the gear ring.
Claims14
A helicopter rotor transmission with a transmission housing in which at least one central drive gear is mounted such that the at least one central drive gear can be rotated by at least one drive train,
- wherein by means of the at least one central drive gear, indirectly a plurality of planetary gears arranged on planetary gear carriers defining respective planetary gear axes are mounted such that planetary gears can rotate, whereby a rotatable rotor mast can be rotatably driven about a central axis by means of the helicopter rotor transmission,
- wherein, the helicopter rotor transmission has a central cavity, in which runs a locationally and rotationally fixed bearing mast, which is held passing through the transmission housing at least partially in the direction of the central axis,
- wherein the at least one central drive gear is mounted on the bearing mast such that the at least one central drive gear can rotate, and by means of a sun wheel connected with the at least one central drive gear, a rotation of planetary drive gears about the planetary gear axes can be achieved on a side of the planetary gear carriers facing the at least one central drive gear, and
- wherein by way of an operative connection between an internally toothed gear ring that can rotate about the central axis and planetary gears, surrounded by the gear ring, and mounted in a fixed manner such that the planetary gears can rotate about the planetary gear axes, the gear ring can be rotated such that the rotor mast can be set in rotation by means of a gear ring driver attached to the gear ring and the rotor mast.
Dependencies are inferred from the claim text.