Laminated generator rotor structure and a solid rotor repair method

摘要

A laminated generator rotor structure comprises a rotor body including a stack 410 of laminated plates 415 flanked by end flange members 420,425, and placed in compression by at least one steel stud member 440 passing through the laminated stack and secured by at least one fastener 445, 450. Spacer members 430,435 may be provided and stub shafts 455,460 may be mounted to the spacers by means of bolts 476. Additionally, as shown in figs 10 and 11, balancing may be achieved by thicker laminations 615 being included in the stack, the radially outer ends of the teeth being appropriately drilled 620 to adjust the weight. A related method for repairing a damaged solid rotor using a laminated rotor structure comprises removing the damaged portion of the rotor, tapping the end of the undamaged section and threading a stud 440 therein on which a lamination stack 410 is assembled and retaining the stack by end flange 420 and spacer 430 and fastener 455.