FIELD: machine building.
SUBSTANCE: fastener is inserted into each pair of coaxial holes of disc and wheel blade and fixed; screws are used as fasteners; intermediate sleeve is pre-inserted into each pair of coaxial holes of the disc and blade; at that, hole of blade is stepped so that its larger diameter corresponds to diameter of part of intermediate sleeve, which is installed in it, and its smaller diameter in threaded part of the hole corresponds to screw diameter and inner diameter of intermediate sleeve, and screw is fastened by its being tightened in thread of the blade hole.
EFFECT: eliminating the disadvantages caused by riveted connection of centrifugal compressor wheel elements.
2 dwg
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