Abstract
Iron core torque motors provide a high power density, but require high off-axis stiffness, which is normally too demanding for flexure mechanisms especially when considering large range of motion applications. In this paper, a flexure-based suspension for a high torque iron core direct drive torque motor with a large range of motion of 60 degrees is presented. This flexure-based suspension provides the required high radial stiffness (>1000N/mm) combined with a high radial load capacity (500N) over the full range of motion. Furthermore, the suspension maintains a constant position of the pivot axis within 0.1mm, which is required to limit pull-in forces and to stay within alignment tolerances of the actuator. A prototype has been designed and constructed and experimental validations confirm the high radial stiffness and load capacity of the rotor suspension.
| Original language | English |
|---|---|
| Title of host publication | European Society for Precision Engineering and Nanotechnology, Conference Proceedings - 19th International Conference and Exhibition, EUSPEN 2019 |
| Editors | Richard K. Leach, D. Billington, C. Nisbet, D. Phillips |
| Publisher | EUSPEN |
| Pages | 52-55 |
| Number of pages | 4 |
| ISBN (Electronic) | 9780995775145 |
| Publication status | Published - Jun 2019 |
| Event | 19th EUSPEN International Conference & Exhibition, ICE 2019 - Euskalduna, Bilbao, Spain Duration: 3 Jun 2019 → 7 Jun 2019 Conference number: 19 https://www.euspen.eu/events/19th-ice-bilbao/ |
Conference
| Conference | 19th EUSPEN International Conference & Exhibition, ICE 2019 |
|---|---|
| Abbreviated title | ICE 2019 |
| Country/Territory | Spain |
| City | Bilbao |
| Period | 3/06/19 → 7/06/19 |
| Internet address |
Keywords
- Compliant mechanisms
- Flexure mechanisms
- Iron core motor
- Large stroke