| 摘要 |
PURPOSE:To enhance the efficiency of equipping and detaching work for fixing of the core by a method wherein axial directional slits and tapered parts at the inside diametral parts of both end parts are provided on a hollow cylinder to make it as a temporary shaft, and tapered shafts are inserted in with pressure from the both end parts to be used at the time of casting. CONSTITUTION:The slit grooves 7 extending in the axial direction are provided on the hollow cylinder, and the tapered parts 8 expanding toward the end parts are provided at the inside diametral sides of both end parts to form the temporary shaft 6. After the temporary shaft 6 is inserted into a shaft hole of the laminated core 1 of the rotor, the tapered shafts 9 are inserted in with pressure from the both end parts to expand the temporary shaft 6, and the core 1 is fixed firmly. The core is arranged in a die cast metal mold 10 in this condition, and the conductor is formed by pouring. Accordingly equipping and detaching of the core 1 can be performed easily. Moreover abrasion of the temporary shaft 6 is small and can be used for long time. |
