| 摘要 |
PROBLEM TO BE SOLVED: To provide a salient pole type rotor capable of preventing rotational unbalance caused from a slide of a pole head seat.SOLUTION: A salient pole type rotor 10 has a main shaft 11 coaxial with a rotation axis and plural magnetic poles 12 disposed on the outer periphery of the main shaft 11. Each of the magnetic poles 12 includes: a pole body 13; a coil 14; and a pole head 15. A bolt 16 for fixing the pole head 15 to the pole body 13 screwed in the pole body 13 to reduce a reaction force F2 of the bolt 16 by a thermal expansion force F1 when the pole head 15 elongates due to heat to allow a head 16a of the bolt 16 to follow the thermal elongation. Thus, the pole head seat 15a is prevented from sliding to thereby prevent the rotation unbalance of the salient pole type rotor 10. |
