1. Platform for Target Spectrometer using linear montion drive Rexroth
Workshop – September 2011
Platform for Target Spectrometer using linear montion drive Rexroth
Cracow University of Technology Mechnical Design Group
Edward Lisowski

2. The platform for Target Spectometer

3. The interface between platform and yoke
platform – rear view (proposal Alexander Vodopyanov,
Evgeny Koshurnikov)
The new platform – rear view

4. The interface platform – side view (prop. Alexander Vodopyanov)
The new platform – side view

5. The interface The platform – top view
platform – top view (prop. Alexander Vodopyanov)
The platform – top view

6. Data of a single I-beam HEB 800 Mass 260 kg/m,EN 10034;
Material stal S355 EN Re=355MPa

7. LM Guide with extremely heavy load capacity JUP –THK (The previous solutions)

8. LM-system Rexroth (Germany) New solution for the platform
Max load capacity
130 tones per one block
4x130=520 tones

9. New model of the platform
Rails
Footprints
Door supports

10. Rear view of the platform – rear view
The pads on the
floor
The Carriage
The hydraulic Jack
The view in the cross section along the axis Z
The space for hydraulic actuators

11. Main components of the frame to assembly
The main beam
The side beam
The screw node

12. Support place - idea

13. Support place – real solution

14. Support place – cross section
Long-time staying
Lifting
Moving

15. Vertical ball bearing on the carriage
Support ring
Ball bearing
Frame of
the carriage

16. Carriage, hydraulic jack and pads at the support point
Hydraulic jack for vertical lifting
The precision pads
fastened to draft pads
The draft pads
fastened to floor

17. Technology of assembly
Fasten rails with carriages to the floor very precisely.
Fasten draft pads (plates for hydraulic jack and frame) to the floor.
Put main frame on the frame.
Regulate the height and flatness of the platform.

18. Rail and jack gauges

19. Some details of installation
Access windows for carriage and hydraulic jack under platform

20. Installation of the rail on the floor
Large plate distributes
load on the floor
Small plates fix the rail to the main plate

21. Model FEM

22. Stress - von Mises

23. Displacement in the Y direction

24. Testing model in Lab 1. The friction factor is
very small, less than 0,005
2. No problem with flatness
3. Repositiong is very precise,
less than 0.1 mm.

25. Operation of device
Before first usage adjust the height of the platform using precise pads and hydraulic jack.
For the transport of the magnet from in-beam to park position lift the platform a few millimetres and put pads between carriage and frame.
Fasten the horizontal hydraulic actuators
Lower down hydraulic jacks
Start slowly moving using hydraulic actuators to the park position.

26. Resume Very big moment of inertia single I_BEAM 3,49E9 mm4
Not rigid joints between floor and frame
Secure level of risk about stress above 3
Magnet can stay long time on the carriage; or directly on pads (much better)
Very small speed of the transport, no vibrations
Very precise positioning and repositioning
The main element of the frame is I_BEAM HEB800 (it is standard in industry)
Total mas of the platform about 16 tones.