| 摘要 |
In order to solve problems in a rotor of a conventional inductive motor in relation to extra costs for highly rigid materials such as a iron or stainless steel that arise during manufacture of the protective ring, the high-precision positioning required during installation of the protective ring, the increase in manufacturing costs and the increase in the number of components for the rotor caused by the construction precision required to provide said positioning precision, and increases in the complexity of the manufacturing process, a rotor for an inductive motor is provided comprising: a rotary shaft (5); a rotor core (1) formed by a plurality of laminated plates; a plurality of slot grooves (2) formed so as to pass through the rotor core (1); a plurality of rotor conductors (3) provided inside of the slot grooves (2); an end ring (4) provided on top of an end surface in the direction of the shaft end of the rotor core (1) that is to conduct with each rotor conductor (3); a protective ring (7) formed by a plurality of laminated plates and comprising an outer diameter protective ring (7a) for protecting the outer periphery of the end ring (4), and an inner diameter protective ring (7b) for preventing contact between the inner periphery of the end ring (4) and the rotary shaft (5); and an end plate (8) provided on top of the end surface in the direction of the shaft end of the protective ring (7). |
