| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotor for an induction machine capable of efficiently dealing with increase in a rotation speed of the induction machine, the rotor for the induction machine comprising a rotor core and a secondary conductor including a plurality of conductor bars and an end ring.SOLUTION: A rotor 1 comprises: a rotor core 20 that is fixed on a rotary shaft 10; and a secondary conductor 30 that includes a plurality of conductor bars 31 and an end ring 35. The rotor core 20 includes caulking parts 26 at positions to be an outer diameter side relative to a plurality of slots 25 that are disposed while being distributed around the rotary shaft 10. The caulking parts 26 are formed by shearing and plastically deforming a part of core plates 21 in an axial direction of the rotary shaft 10 into a cantilevered beam shape extending in a direction that crosses a radial direction of the rotor core 20 with caulking for creating the rotor core 20 by mutually stacking and fixing a plurality of core plates 21.SELECTED DRAWING: Figure 5 |
