| 摘要 |
<p>A rotor (10) for an axial flow turbomachine includes a disc (12), a rim (14) on the disc (12) having blade-retention slots (22), and blades (30) having roots in the slots (22) and airfoils (32) extending radially out from the rim (14). The airfoils (32) project through correspondingly-shaped slots (50) in a cylindrical platform (48) concentric with the rim (14) of the rotor (12). A first annular flange (46) at one edge of the platform (48) has a lip (58) at its inside perimeter which hooks under the inside perimeter (21B) of a first annular flange (20B) on the rim (14) for radial retention of the platform (48). A second annular flange (44) at the other edge of the platform (48) has a lip (54) at its inside perimeter which hooks under a lip (64) at the outside perimeter of an annular cover (62). The cover (62) has another lip (66) at its inside perimeter which hooks under a second annular flange (20A) on the rim (14) for radial retention of the cover (62) and the platform (48). <IMAGE></p> |
