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Dome Drive Electric upgrade System Observatory Automation Project

Dome Drive Electric upgrade System Observatory Automation Project. Steven Bauman Operations M.E. Manager. Dec 13, 2010. Justification. The Observatory Automation project required the Dome Drive System to be remotely operated and provide monitoring capabilities Conduct a Feasibility study

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Dome Drive Electric upgrade System Observatory Automation Project

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  1. Dome Drive Electric upgrade System Observatory Automation Project Steven BaumanOperations M.E. Manager Dec 13, 2010

  2. Justification • The Observatory Automation project required the Dome Drive System to be remotely operated and provide monitoring capabilities Conduct a Feasibility study • Things to consider • Options

  3. Or……Option #4 Hamster power!

  4. Results from testing

  5. Conceptual Design reviews • Assessment of the choices equally • apples to apples comparison Evaluate and Distinguish best choice

  6. Electric dome drive plan

  7. Beneficial Features and Improvements • Increased speed capability from • 60deg/min to 72deg/min • Increased system efficiency • Hydraulic system η~30% • Electric system η~92% • Reduced electrical consumption • Reduced Environmental footprint • Reduction of leak hazardous • Reduced mechanical maintenance • Will save 5-10k a year, amount currently spent on hydraulic system. • Nominal cost difference between options • Reliability • Can operate with one drive out of service • Designing for the future

  8. Design solution actuator Pneumatic actuator Hydraulic actuator replacement with • Uses building air, 100-110psi, solenoid valve draws only 2 watts of power. Solenoid valve

  9. Design Solution motor Drive unit with Electric motor drive controller Replace Hydraulic power unit Replace Manual control station Hand Held Pendent

  10. Location control cabinet Location on 4th floor Keypad interface *Eliminates heat source on 5th floor

  11. Dome Gear train Components SHP wheel assembly SHP Main shaft assembly Brevini Gear reduction box Re-use Re-use Re-use Hydroland Hydraulic motor Replace

  12. Design solution Gear train Electric motor Baldor RPM AC 20HP motor 1750RPM3PH 60HZ New configuration Brevini Nema 250TC Motor adapter flange Adapter kit Rotate assembly up to achieve more clearance.

  13. Any Additional Questions or Comments? Thank you for your time! Contributors:

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