FIELD: transport.
SUBSTANCE: fan rotor contains fan blades (15) attached to periphery of wheel (13). Each blade has blade tail engaged with groove in this wheel and held in it by main fixture (28). The main fixture is engaged with slots (34) formed adjacent to superposed end of corresponding groove and on each its side to counteract blade tail movement in axial direction. The main fixture (28) is connected with additional fixture differing from the main fixture. Additional fixture is spaced from the main fixture by predetermined distance. The additional fixture (32) is located between the main fixture and superposed end of blade tail engaged with groove. The additional fixture (32) preferably is thin wall.
EFFECT: invention allows fixture to dissipate impact energy and minimise damage to adjacent blades and parts while keeping structure simple and cheap.
6 cl, 6 dwg
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