DEVICE FOE FOXING THE IMPELLER ON THE SINGLE-STAGE IMPELLER PUMP SHAFT

摘要

Device for mounting impeller on single-stage impeller pump shaft, wherein the impeller hub is connected with the shaft by way of a thread reverse to the direction of the impeller rotations, characterised in that the securing screw (4) screwed to the pin (2) of the threaded shaft with a thread (5) reverse to the direction of shaft pin (2) thread (3), has head with a recess in the shape of the circumference groove (8), which creates an external ring (10), whose skewback part (11) overlaps the groove (12) of the impeller hub (1) and with the radial cut out (9) for the tool for fixing the screw (4).IMAGE