METHOD FOR DYNAMICALLY ABSORBING SHOCKS IN A POWER SHAFT IN PARTICULAR A SUPERCRITICAL SHAFT AND SHOCK-ABSORBING ARCHITECTURE FOR IMPLEMENTING SAID METHOD

摘要

The present invention relates to a structure that is capable of providing sufficient absorption of impact to the power shaft while maintaining rigidity in the front bearing so as not to degrade the engagement of the power teeth of the drive pinion. For this purpose, compressible dynamic shock absorption is provided in alignment with the downstream shock absorber of the further meshing. An assembly for dynamically absorbing impacts on a power shaft according to the present invention includes a series of upstream bearings 12 for the toothed system 15 and a drive pinion 16 located next to the downstream bearings 14. [ And includes a tooth-shaped system 15. The downstream bearing 14 is coupled with the compressible squeeze film 26 to form a downstream shock absorber 20, 26 that is axially offset relative to the upstream bearing 12 opposite the toothed system 15 Is combined with one or more additional bearings (20, 20r). The downstream bearings 12, 14 may be connected by a flexible frame 24 mounted on a common casing 34. The present invention can be used for power-transmission shafts, especially supercritical shafts in turbine engines.