Composite excitation generator rotor

Abstract

The invention belongs to the technical field of a motor, particularly relates to a composite excitation generator rotor. The rotor is characterized in that the bottom of a dovetail-shaped magnetic steel groove is provided with a thread hole; the magnetic steel is correspondingly provided with a countersunk screw hole, and a screw is arranged in the countersunk screw hole; the magnetic steel is fastened on the dovetail-shaped magnetic steel groove; screw and nut grooves are designed into a cross shape, the size of the nut groove is basically the same as the size of the nut. As the bottom of the dovetail-shaped magnetic steel groove on a punching sheet is provided with the thread hole, the magnetic sheet is inserted into the groove during installation, and then is fastened by the screw, thereby ensuring the magnetic steel not to throw away in high-speed rotation. As the screw and nut grooves are designed into the cross shape, and the size of the nut groove is basically the same as the size of the nut, the screw can not slide in the groove, the position used for the screw head in the nut grove is reserved, and the nut can be assembled by a long bolt, thereby being easy to assemble and enhancing the working efficiency.

Description

Technical field: [0001] The invention belongs to the technical field of motors, and in particular relates to a composite excitation generator rotor. Background technique: [0002] In the rotor of the compound excitation generator in the prior art, the rotating shaft is press-fitted in the center hole of the rotor iron core. The rotor iron core is composed of several rotor iron chips. In the magnetic steel groove, the magnetic steel installed in this structural form is easy to throw out when rotating at high speed, which is extremely unsafe. The enameled wire is wound in the frame groove of the coil frame, put the nut in the nut groove of the "T"-shaped screw nut groove, install the insulating pressure plate and the pressure plate on the outside of the coil, and fasten them in the nut with bolts, through the insulation pressure plate and the pressure plate The coil is pressed tightly in the frame groove of the coil frame; the nut groove in the screw nut groove of this struct...

AI Technical Summary

Problems solved by technology

[0002] In the rotor of the compound excitation generator in the prior art, the rotating shaft is press-fitted in the center hole of the rotor iron core. The rotor iron core is composed of several rotor iron chips. In the magnetic steel groove, the magnetic steel installed in this structure is easy to throw out when rotating at high speed, which is extremely unsafe.

The enameled wire is wound in the frame groove of the coil frame, put the nut in the nut groove of the "T"-shaped screw nut groove, install the insulating pressure plate and the pressure plate on the outside of the coil, and fasten them in the nut with bolts, through the insulation pressure plate and the pressure plate The coil is pressed tightly in the frame groove of the coil frame; the nut groove in the screw nut groove of this structure is designed at one end of the "T" deep groove, and the nut groove and the extending end of the screw are placed in the same room, When assembling, the nut is easy to slip in the nut groove, therefore, it is very inconvenient to assemble, moreover, it is labor-intensive and time-consuming

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