发明名称 Dynamic blocking restraint of a rotor field winding contained by a non-metallic structural rotor enclosure
摘要 The conventional bar by bar assembly of a generator rotor can be replaced with a solid rotor having parallel slots milled into a rotor forging so that containment components can be replaced with a simplified enclosure. A dynamic blocking restraint assembly is beneficial to control winding position, to prevent load dissymmetries against the winding enclosure, and to provide sufficient preload to obtain predictable behavior in all expected modes of operation. The blocking assembly includes a sandwich construction of a first support block, at least one spring, additional wedge-shaped spacers in the case of multiple springs, and a second support block disposed in a symmetrical arrangement substantially aligned with the quadrature axis of the rotor. The assembly serves to provide circumferential restraint and to match the structural hoop stiffness of the winding enclosure. The construction of components can be configured to accommodate any desired degree of preloading.
申请公布号 US6313561(B1) 申请公布日期 2001.11.06
申请号 US20000491861 申请日期 2000.01.26
申请人 GENERAL ELECTRIC COMPANY 发明人 NYGARD ROBERT J.;KAMINSKI CHRISTOPHER A.;WANG YU
分类号 H02K3/52;(IPC1-7):H02K1/22 主分类号 H02K3/52
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