3x1x1 m 3 Anode deck Suspension system WA105 meeting - 21 st of January, 2015 B. Aimard, G. Balik, L. Brunetti, G. Deleglise, D. Duchesneau, N. Geffroy

21/01/2015 B. Aimard 2 Anode deck suspension Anode deck Insulation Top Cap Suspension 3 Suspension 2 Suspension 1 Liquid Argon

21/01/2015 B. Aimard 3 Hanging system Specifications (SPFT) 40 mm full range movement 0,1 mm positioning accuracy CRP + deck mass : 120 kg (3 chimneys : 40 kg / cable) Vacuum-tightness to keep LAr purity Foresee system maintenance Mechanical stop / end of stroke (safety & maintenance)

21/01/2015 B. Aimard 4 System Overview Motor + brake Gears Ball-screw Over-stroke limiter Bellow Air purge Mechanical stop Suspension cable

21/01/2015 B. Aimard 5 Top-cap integration (1/2) Top view 3D view System fits well in the whole assembly Angular position can easily be changed Cable tray not yet defined

21/01/2015 B. Aimard 6 Top-cap integration (2/2) ~ 1053 mm Height of the assembly : 1053 mm Mass : ~ 50 kg / chimney ~ 229 mm

21/01/2015 B. Aimard 7 SPFT - lower part overview Conflat flanges (DN125 type with copper ring) Suspension cable Bellow (welded diaphragms) Over-stroke limiter Air purge Mechanical stop

21/01/2015 B. Aimard 8 Over-stroke limiter – in operation In operation, transmission between the drive and the wire Loose adjustment allows misalignment between upper and lower parts

21/01/2015 B. Aimard 9 Over-stroke limiter - maintenance In maintenance : Mechanical stop (green plate) sticks to grey flange  Compression of the O-ring Over-stroke limiter (orange part) unsticks  Liberation of the cable tension in the upper part, allowing easy disassembling. Elastic ring to avoid fall of the orange part during maintenance

21/01/2015 B. Aimard 10 Air Purge 6 mm diameter purge Welded connector Swagelok adapters + manual valve foreseen Vacom Quick CF connection

21/01/2015 B. Aimard 11 Mechanical stop Rubber O-ring to seal the Ar volume  50 kg tension (CRP + deck mass) to deform the O-ring

21/01/2015 B. Aimard 12 Drive integration Drive choice : Siemens motor and gears Bosch ball-screw 100 mm stroke 5 mm step 25mm diameter shaft Junction between motor/gear and ball-screw :  Suitable for 3x1x1 and 6x6x6

21/01/2015 B. Aimard 13 Drive automation  Common architecture for 3x1x1 and 6x6x6

21/01/2015 B. Aimard 14 Order of the drive architecture : End of January > Hardware delivery in March Production drawings : End of January 2015 End of electrical studies: March 2015 End of production : March 2015 (mechanical parts vacuum tested) Cabinet cabling: April 2015 Tests at LAPP (process with uncoupled motors): May 2015 Integration at CERN (commissioning of the hardware, cabling…): June 2015 Tests at CERN: July 2015 Schedule (main milestones)