Rotor turning device for large turbine/generator in-situ rotors
US9784136B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2014 |
| Grant date | Oct 10, 2017 |
| Priority date | — |
| Expiry date | Mar 14, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H31/005
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A tool assembly for safely rotating a heavy turbine generator rotor for alignment and maintenance purposes. The tool assembly includes a plurality of segments mounted to an outer face of a coupling affixed to an end of a shaft of the rotor, where the segments include a plurality of segment teeth extending beyond an outer edge of the coupling. A tool is positioned adjacent to the coupling and includes a support assembly, a hydraulic ram and a ratcheting pawl. The ratcheting pawl includes a drive pin positioned to engage the teeth of the segments, where extension of a piston rod from the hydraulic ram causes the coupling and shaft to rotate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.