Method and jig for dynamically balancing an assembly of the jig and rotor
US4716761A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1985 |
| Grant date | Jan 5, 1988 |
| Priority date | — |
| Expiry date | Sep 30, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F15/322
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of dynamically balancing an assembly of a metal jig and a ceramic rotor attached thereto, the ceramic rotor having a shaft portion, and the metal jig having at its one axial end a fixing hole, comprising the steps of: inserting the shaft portion of the ceramic rotor into the fixing hole of the metal jig, and thereby fixing the ceramic rotor to the metal jig to provide the assembly; and dynamically balancing the assembly by fixing at least one balancing piece in at least one of a plurality of balancing holes which are formed in the metal jig, the balancing holes being open in an outer surface of the metal jig. Also disclosed is a metal jig of a generally cylindrical shape for rotating a ceramic rotor in a dynamically balanced condition, having a fixing hole in its one axial end portion, in which a shaft portion of the ceramic rotor is inserted and fixed. The jig further has balancing portions defining a plurality of balancing holes which are formed in the one axial end portion and the other axial end portion. The balancing holes are open in an outer surface of the jig, and are adapted to retain therein a balancing piece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.