Device for strip guidance in a hot medium (I)

Patent metadata

Field	Value
Publication number	US-9562278-B2
Application number	US-201313261971-A
Country	US
Kind code	B2
Filing date	Apr 11, 2013
Priority date	Apr 12, 2012
Publication date	Feb 7, 2017
Grant date	Feb 7, 2017

Abstract

The invention relates to a device for strip guidance in a hot medium, comprising a deflection roller ( 3, 38 ) mounted on supporting arms ( 1, 2, 34, 37, 54, 57 ) and a carrier device holding the supporting arms ( 1, 2, 34, 37, 54, 57 ). The device is characterized in that one of the supporting arms ( 1, 2, 34, 37, 54, 57 ) is mounted on the carrier device by means of a floating bearing ( 5 ), wherein the floating bearing ( 5 ) allows the mounted supporting arm on the carrier device to move parallel to the longitudinal direction of the deflection roller ( 3, 38 ), and in that an elastic counter element ( 12 ), which acts parallel to the longitudinal direction of the deflection roller ( 3, 38 ) upon the supporting arm ( 1, 2, 34, 37, 54, 57 ) mounted on the floating bearing ( 5 ), is present and counteracts an increasing distance between the supporting arms ( 1, 2, 34, 37, 54, 57 ). In this way, the technical problems of offsetting a temperature-induced length change of the deflection roller and avoiding an uncontrolled movement of the system are solved.

First claim

The invention claimed is:

1. A device for strip guidance in a hot medium, comprising a deflection roller ( 3 , 38 ) which is mounted on supporting arms ( 1 , 2 , 34 , 37 , 54 , 57 ) and a carrier device holding the supporting arms ( 1 , 2 , 34 , 37 , 54 , 57 ), wherein one of the supporting arms ( 1 , 2 , 34 , 37 , 54 , 57 ) is mounted on a carrier device by means of a floating bearing ( 5 ), wherein the floating bearing ( 5 ) allows the supporting arm mounted thereby on the carrier device to move parallel to the longitudinal direction of the deflection roller ( 3 , 38 ), and wherein an elastic counterelement ( 12 ) acting parallel to the longitudinal direction of the deflection roller ( 3 , 38 ) on the supporting arm ( 1 , 2 , 34 , 37 , 54 , 57 ) mounted on the floating bearing ( 5 ) is present and counteracts an increasing distance between the supporting arms ( 1 , 2 , 34 , 37 , 54 , 57 ).

2. The device as claimed in claim 1 , wherein the carrier device is a cross-member ( 6 ).

3. The device as claimed in claim 1 , including a fixing means for fixing, on the carrier device, the supporting arm that is ( 1 , 2 , 34 , 37 , 54 , 57 ) mounted on the carrier device by means of the floating bearing ( 5 ).

4. The device as claimed in claim 1 , wherein a supporting arm stop element ( 15 ) is present for limiting the movement of the supporting arm ( 1 , 2 , 34 , 37 , 54 , 57 ) mounted on the floating bearing ( 5 ) wherein the position of the supporting arm stop element is adjustable.

5. The device as claimed in claim 1 , wherein the deflection roller ( 3 , 38 ) is mounted on the supporting arms ( 1 , 2 , 34 , 37 , 54 , 57 ) via roller journals ( 23 , 39 ) and wherein journal bearings ( 20 , 31 ) and roller stop elements ( 18 ) for the roller journals ( 23 , 39 ) are provided on the supporting arms ( 1 , 2 , 34 , 37 , 54 , 57 ).

6. The device as claimed in claim 5 , wherein at least one of the journal bearings ( 20 , 31 ) is a rolling bearing.

7. The device as claimed in claim 5 , wherein at least one of the journal bearings ( 20 , 31 ) is a plain bearing.

8. The device as claimed in claim 5 , wherein at least one of the journal bearings ( 20 , 31 ) is entirely ceramic.

9. The device as claimed in claim 5 , wherein a bearing gap ( 25 ) is provided in a radial direction between the respective journal bearings ( 20 , 31 ) and the roller journals ( 23 , 39 ) and the bearing gap ( 25 ) is sealed off against the penetration of molten material.

10. The device as claimed in claim 9 , wherein at least one elastic sealing disk ( 29 , 30 ) positioned in the axial direction on the journal bearing ( 20 , 31 ) serves for sealing off the bearing gap ( 25 ).

11. The device as claimed in claim 10 , wherein the at least one elastic sealing disk ( 29 ) comprises graphite or consists of graphite.

12. The device as claimed in claim 5 , wherein impact bodies ( 16 , 44 ) are fixed releasably to the roller journals for an axially oriented impact against the supporting arms ( 1 , 2 , 34 , 37 , 54 , 57 ).

13. The device as claimed in claim 12 , wherein one or more screwed connections are provided for the releasable fixing of the impact bodies ( 16 , 44 ).

14. The device as claimed in claim 5 , wherein at least one of the journal bearings ( 20 , 31 ) is secured in the supporting arm ( 1 , 2 , 34 , 37 , 54 , 57 ) against release from a bearing receptacle ( 45 , 55 ) of the supporting arm ( 1 , 2 , 34 , 37 , 54 , 57 ) by means of a non-positive lock or positive lock which engages on the outer edge of the journal bearing ( 20 , 31 ).

15. The device as claimed in claim 14 , wherein at least one of the journal bearings ( 20 , 31 ) is secured by means of a clamping body ( 35 , 46 ) which engages on the at least one of the journal bearings ( 20 , 31 ) and on the supporting arm ( 1 , 2 , 34 , 37 , 54 , 57 ) holding the at least one of the journal bearings ( 20 , 31 ).

16. The device as claimed in claim 15 , wherein the clamping body ( 35 , 46 ) has a higher coefficient of thermal expansion compared to the material of the supporting arm ( 1 , 2 , 34 , 37 , 54 , 57 ).

17. The device as claimed in claim 16 , wherein the clamping body ( 35 , 46 ) has a bar shape.

18. The device as claimed in claim 15 , wherein the clamping body ( 35 , 46 ) has an annular shape.

19. The device as claimed in claim 18 , wherein the annular clamping body ( 35 , 46 ) comprises an annular wedge piece ( 47 ) of wedge-shaped crosssection with a thickness which decreases in the axial direction.

20. The device as claimed in claim 19 , including an elastic spring element ( 50 ) acting on the clamping body ( 35 , 46 ) in the axial direction.

21. The device as claimed in claim 14 , wherein at least one of the journal bearings ( 20 , 31 ) is secured by means of at least one tie rod ( 58 ).

22. The device as claimed in claim 21 , wherein the at least one tie rod acts between two separate supporting arm parts ( 60 , 61 ) which form the bearing receptacle ( 45 , 55 ) and has a lower coefficient of thermal expansion than the material of the supporting arm ( 1 , 2 , 34 , 37 , 54 , 57 ).

23. The device as claimed in claim 14 , wherein the bearing receptacle ( 45 , 55 ) has a chamfer acting on at least one of the journal bearings ( 20 , 31 ) in a positive-locking manner.

24. The device as claimed in claim 1 , wherein at least one of the journal bearings ( 20 , 31 ) is unencapsulated with respect to the hot medium.

Assignees

• CEROBEAR GmbH
• Thyssenkrupp Steel Europe Ag

Inventors

• Blumenau Marc
• Eisner Frank
• Gusek Christopher
• Jindra Fred
• Schoenenberg Rudolf
• Willeke Bert-Reiner
• Denner Tobias
• Klatt Christian
• Wemhoener Jens

Classifications

• F16C2326/58

  Conveyor systems, e.g. rollers or bearings therefor · CPC title

• F16C25/083

  with resilient means acting axially on a race ring to preload the bearing · CPC title

• C23C2/003 Primary

  Apparatus · CPC title

• F16C13/024 Primary

  adjustable for positioning, e.g. radial movable bearings for controlling the deflection along the length of the roll mantle · CPC title

• C23C2/00344

  Means for moving substrates, e.g. immersed rollers or immersed bearings · CPC title