Separable roller screw assembly for a space craft release mechanism system
US11111034B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2016 |
| Grant date | Sep 7, 2021 |
| Priority date | — |
| Expiry date | May 2, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B7/06
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The present disclosure relates to a separable roller screw assembly comprising: a first screw shaft having a first external thread and being axially separated from a second screw shaft having a second external thread; a planetary roller arrangement comprising multiple rotatable rollers radially arrayed about the first and second screw shafts, whilst being encapsulated by a rotatable nut module; the rotatable nut module being coaxially arranged about the first and second screw shafts and configured for maintaining the planetary roller arrangement, the first and second screw shafts in an axially fixed configuration to permit the assembly to carry a load in an axial direction corresponding to an axial tensile force, whilst enabling displacement of the first screw shaft relative to the second screw shaft when said assembly is released from said axially fixed configuration; and wherein each one of the multiple rollers comprises first and second roller external thread regions adapted to engage said first external thread and said second external thread, respectively. Moreover, the present disclosure relates to a space craft release mechanism for separating a first space craft element from…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.