To provide a rotor whose core is structured by stacking a plurality of kinds of magnetic steel plates of different sizes and that is provided with a core-fixing structure so as to be capable of enduring high-speed revolution.
A core 50 includes two kinds of magnetic steel plates 52, 53 with different stacked shapes. A bolt 60 is inserted into a through-hole 55 formed in the core 50. The magnetic steel plates 52 and 53 that constitute the core 50 are entirely fixed by tightening a nut 65, which forms a pair with the bolt 60. Furthermore, the elastic deformation of the bolt 60 is suppressed by filling gaps between the passing-hole 55 and the bolt 60 with a filler 70. As a result, the stress of the bolt 60 is lessened, and thereby the reliability of the fixing structure can be improved.
TSUCHIYA KATSUHIRO
TATEMATSU KAZUTAKA
KAMIYA MUNEHIRO
HAYAKAWA SEI
WAKITA TETSUO
AISIN SEIKI
Toshio Morita
Takao Matsuyama
Tadashi Muto