SU1686615A1 - Device for attachment on shaft of rotor of electric machine - Google Patents

Abstract

SUBSTANCE: invention relates to an increase in reliability. The device comprises a cylinder 1, outer bushings 3, inner bushings 4. The latter are connected by a cylindrical element 5 into a single piece. Each inner bush 4 has longitudinal projections 8 and 9. 10 The protrusions 8 are folded over to the wa and 6 until they come into contact with it, and the protrusions 9 rest for the bearing 2 and

Description

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The invention relates to electric machines, in particular to devices for securing a rotor on a shaft.

The aim of the invention is to increase reliability.

FIG. 1 shows the rotor of an electric machine; in fig. 2 shows section A-A in FIG. one.

The rotor contains a cylinder 1, poles 2, outer bushings 3, inner bushings 4 connected by a cylindrical element 5 in a single piece, shaft 6. Each of the outer bushings 3 has longitudinal grooves 7, and each inner sleeve 4 has longitudinal projections 8 and 9. External sleeve 3 article givas stud 10.

When the element 5 is seated with a gap on the shaft 6, the center of gravity of the rotor plate is displaced, as a result of which a significant imbalance occurs during the rotation of the rotor. When the studs 10 tighten the outer sleeves 3, then due to the conical surfaces one half of the longitudinal projections 8 bend to the shaft 6 before the contact and center the rotor, the other half of the longitudinal projections 9 serve as a stop for

end surface of the bearing and provides the necessary face runout.

The use of the invention prevents rotor unbalance due to the fish gap between the protrusions of the sleeve and the shaft and provides the necessary face-beating, which increases the reliability of the device.

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Claims (1)

Invention Formula A device for mounting on the rotor shaft of an electric machine, comprising two bushings at each end, the mating surfaces of which are made conical, and the outer bushings have longitudinal grooves, characterized in that, in order to increase reliability, each internal sleeve is made evenly spaced around the circumference longitudinal protrusions, some of which are located in the grooves of the outer sleeve, and protrusions located in the grooves and protrusions located outside the groove alternate with each other, with the inner sleeves being connected to The integral element and are made with it in one piece. 0 eight FIG. 2 Compiled by F. Podolsk Tehred A. KravchukI Corrector I. Erdeyi Subscription Circulation