| 摘要 |
The rotary assembly (1), comprising a disc (2) with cavities (5) for blade roots (4) and platforms (6) for adjacent blades, has each platform made from folded sheet metal, e.g. aluminium, with an omega-shaped cross-section formed by two sides and a top. The platform sides are applied against the lower side walls of the blades, with their ends (12, 13) inserted between the sides (14) of the blades roots and facing walls (15) of the cavities. The platform sides are preferably given an anti-wear coating of varnish and the top of each platform can have a stiffener. |
