Torsionally elastic assembly for driving a centrifuge rotor
US5456653A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 7, 1994 |
| Grant date | Oct 10, 1995 |
| Priority date | — |
| Expiry date | Jul 7, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D3/68
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A centrifuge includes a drive shaft-to-hub coupling assembly for providing vibration damping that is selective to torsional damping over lateral damping. An impeller is fixed to a drive shaft and a receiver is fixed to a rotor-bearing hub. Relative rotation between the impeller and the receiver is restricted to compression and decompression of elastomers trapped between teeth extending from the impeller and from the receiver. The elastomers function to damp torsional vibrations and torsionally induced lateral vibrations. The receiver is prevented from becoming axially misaligned with the impeller by including one or more rigid annular bushings that maintain the distance between the hub and the drive shaft, thereby preventing the elastomers from being deformed in a manner which would damp lateral vibrations. The annular bushing is mounted to allow relative rotation between the impeller and the receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.