The rotor blade and the turbomachine with moving blade

摘要

In the case of a rotor blade (1) for a turbomachine, in particular a steam turbine, with a socket plug foot (2) with a first tab (3) and two second tab (4), which in the axial direction (a) on both sides of the first flap are arranged, wherein the first and second flaps on mutually facing axial ends (3.i, 4.i) a shoulder (5) have in the axial direction in such a way that the tabs a radially outer first section (3.1, 4.1) and a radially inner second section (3.2, 4.2), whose axial extension (b_F3) is smaller than that of (b_F1, b_F2) of the outer first section, based on an axial overall width (b) between the axial ends facing away from each other (4.a) of the two second tab (4), the radial height (h_F1/b) of the first, radially outer section in the region between 0,39 and 0,45, in particular between 0,40 and 0,44, and the radial height (h_F2/b) of the second, radially inner section in the region between 0,40 and 0,46, in particular between 0,41 and 0,45, is.