FIELD: engines and pumps.
SUBSTANCE: pump comprises casing and casing cover. Rotor composed of shaft and impeller is arranged between casing and cover. Impeller is fitted on said shaft by means of two-sided collet lock with taper bushes with screws. Rotor end seals are fitted on said shaft with the help of one-sided collet locks with taper bushes and screws. Said locks are composed of two aligned rings with taper working surfaces to be displaced by clamping screws along shaft axis relative to each other to clamp the shaft.
EFFECT: improved performances, reduced noise and vibrations, higher reliability and efficiency.
5 cl, 9 dwg
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