ROTOR SHAFT OF DRIVE MOTOR HAVING PARTIALLY STATIONARY FIT TYPE KEYWAY AND ROTOR CORE ASSEMBLY USING THE SAME

摘要

The present invention relates to a rotor shaft of a driving motor and a rotor core assembly. Provided are the rotor shaft of the driving motor having a partial stationary fit type keyway and the rotor core assembly using the same capable of improving the fixation power and the durability of a core by preventing the movement of the rotor core in which the keyway connected to a key of the rotor core by using a partial stationary fit method is formed and of fundamentally preventing the deformation of the core caused by a shrink fit process. The present invention comprises a core assembly unit in which the rotor core is assembled and the keyway which is formed on the core assembly unit to fit the key formed on the rotor core. The keyway provides the rotor shaft of the driving motor which comprises a section in which the size of a width is different. Provided is the rotor core assembly which is assembled with the rotor core in which the key inserted into the keyway is formed to be assembled in the rotor shaft.