Turbine blade attachment for a turbomachine

摘要

The attachment has a blade root (1) arranged in a blade groove (18) and formed as a fir tree root. The blade root has two anchoring teeth that are formed for installation in recesses in a rotor, where height (H) of the anchoring teeth is increased for a blade root tip (12). Anchoring tooth tips (7) are arranged along straight tips (10). The blade root has anchoring tooth valley tips (9) between the anchoring teeth, where the anchoring tooth valley tips are arranged along a straight valley (11). The straight tips and the straight valley are arranged at an angle between 2 and 10 degrees.