摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor with a revolution detector of a simple configuration at a low cost, capable of reducing vibration from a motor shaft by supporting a revolution detector only with the motor shaft, without connecting both the motor shaft and the shaft for connecting a detector side motor using a coupling. <P>SOLUTION: The motor with a revolution detector comprises a stator of which an armature coil 2 is wound on a stator core 1, a rotor which is arranged to face the stator across a magnetic gap and constitutes a field by engaging a motor shaft 3 with rotor core 4, and a revolution detector 11 for detecting rotational position of the rotor. The revolution detector 11 is provided on the same axis, on an anti-load side, with the motor shaft 3. The motor shaft 3 is provided with a plurality of slits 3A which are orthogonal to the axial direction of the motor 3, between the anti-load side of the field part and the revolution detector 11, and are treated to have flexibility. <P>COPYRIGHT: (C)2005,JPO&NCIPI |