ROTOR FOR AN ELECTRIC MACHINE

摘要

The invention relates to a rotor (4) for an electric machine (1) for carrying out a rotational movement about a rotational axis (6), comprising a rotor shaft (5), a plurality of laminated cores (8) fastened to the rotor shaft (5) and permanent magnets (11) fastened to the laminated cores (8), the laminated cores (8) being fastened to the rotor shaft (5) such that the permanent magnets (11) of each laminated core (8) has an offset measured in the circumferential direction of the rotor (4) in relation to the permanent magnets (11) of the neighboring laminated cores (8), characterized in that the laminated cores (8) are designed identically and positively fastened to the rotor shaft (5), the rotor shaft (5) comprises one or more positive-fit elements (15, 16, 26) and each laminated core (8) comprises one or more mating positive-fit elements (14, 15, 25), wherein the number of the mating positive-fit elements (14, 16, 25) of a laminated core (8) is greater than the number of positive-fit elements (15, 15, 26) of the rotor shaft (5), respectively, and wherein at least one of the mating positive-fit elements (14, 16, 25) of a laminated core (8) positively interacts with the at least one positive-fit element (15, 16, 26) of the rotor shaft (5).