JOURNAL RECEPTACLE FOR A WOBBLER CONNECTION AND ROLL DRIVE TRAIN COMPRISING SUCH A JOURNAL RECEPTACLE

Abstract

A journal receptacle for a wobbler connection, in particular for the rotationally secure connection of a drive shaft, such as an articulated shaft, to a roll of a rolling mill. A wobbler hub has a receiving opening that extends in an axial direction of the wobbler hub, for the positive-locking reception of a roll journal. The receiving opening has an inner surface, extending in the axial direction and over the periphery and at least one torque transmission surface. The latter is clad at least partially with at least one wearing plate. The at least one wearing plate is held in a positive-locking manner on the torque transmission surface by at least one clamping piece, which extends in the axial direction on the torque transmission surface and which is connected to the torque transmission surface by a connecting device.

Claims

1-12. (canceled)

13. A journal receptacle for a wobbler connection, the journal receptable comprising: a wobbler hub formed with a receiving opening, extending in an axial direction of said wobbler hub, and configured for receiving a roll journal in a positive-locking engagement; wherein said receiving opening having an inner surface, extending in the axial direction and circumferentially, said inner surface including at least one torque transmission surface; at least one wearing plate disposed on said torque transmission surface; and at least one clamping piece mounting said at least one wearing plate in a positive-locking engagement on said torque transmission surface, said at least one clamping piece extending in the axial direction on said torque transmission surface and being connected to said torque transmission surface by at least one connecting device.

14. The journal receptable according to claim 13, configured for a rotationally secure connection of a drive shaft to a roll of a rolling mill

15. The journal receptacle according to claim 13, wherein said clamping piece, viewed in the circumferential direction, is positioned in a central region on said torque transmission surface.

16. The journal receptacle according to claim 15, wherein said central region of said torque transmission surface extends along a center line and in the axial direction.

17. The journal receptacle according to claim 13, wherein said at least one connecting device is at least one of a threaded pin or a screw.

18. The journal receptacle according to claim 13, wherein said torque transmission surface is formed with a groove and said clamping piece is inserted in said groove.

19. The journal receptacle according to claim 18, wherein said clamping piece is inserted in said groove with a transition fit or press fit.

20. The journal receptacle according to claim 18, wherein said clamping piece, in a radial section through said wobbler hub, has a T-shape with a foot inserted in said groove and partially covers said at least one wearing plate and/or engages in a wearing plate groove or recess formed in said wearing plate.

21. The journal receptacle according to claim 13, wherein said at least one wearing plate is one of a multiplicity of wearing plates held by said clamping piece in a positive lock on said torque transmission surface.

22. The journal receptacle according to claim 13, wherein said at least one wearing plate, in a radial section through said wobbler hub, has a T-shape.

23. The journal receptacle according to claim 13, wherein said at least one wearing plate, in a radial section through said wobbler hub, has a T-shape and said clamping piece has a T-shape rotated through 180 relative to the T-shape of said clamping piece.

24. The journal receptacle according to claim 13, wherein said at least one wearing plate, on a side facing away from said clamping piece, forms an undercut with said wobbler hub.

25. The journal receptacle according to claim 13, wherein said clamping piece, in a radial section through said wobbler hub, tapers from a free end, facing away from a connection to said torque transmission surface, in a direction of a connection end.

26. The journal receptacle according to claim 25, wherein said clamping piece tapers from the free end to the connection end on one side or on both sides conically and forms an undercut with a side of said at least one wearing plate that bears against said clamping piece.

27. The journal receptacle according to claim 25, wherein said at least one wearing plate is held in a dovetail groove formed on one side by said clamping piece and on the other side by said wobbler hub.

28. The journal receptacle according to claim 13, wherein said clamping piece is enclosed in the axial direction between two said wearing plates and holds said wearing plates in a positive-locking connection in said wobbler hub.

29. The journal receptacle according to claim 28, wherein said two wearing plates have an identical shape in a radial section through said wobbler hub.

30. A roll drive train, comprising: a drive shaft; said drive shaft having a roll-side end configured for connection to a drive journal of a roll, said drive journal being constructed as a roll journal; and a journal receptacle according to claim 13 at said roll-side end of said drive shaft.

Description

[0025] The invention shall be described below by way of example with reference to illustrative embodiments and the figures, wherein:

[0026] FIG. 1 shows a first illustrative embodiment of the invention having two wearing plates, held by a clamping piece, per torque transmission surface;

[0027] FIG. 2 shows an illustrative embodiment in accordance with FIG. 1, yet with additional securement of the wearing plates with an undercut in the wobbler hub;

[0028] FIG. 3 shows a modification of the illustrative embodiment according to FIG. 2, with conically designed wearing plates instead of the T-shaped wearing plates;

[0029] FIG. 4 shows by way of example a roll drive train according to the invention.

[0030] In FIG. 1 is represented by way of example a journal receptacle 1, which can be connected to the roll-side end of the drive shaft, in particular the universal joint shaft of a roll drive train, for instance by means of a flange joint 2. Alternatively, the journal receptacle 1 is configured integrally in the roll-side end of the drive shaft.

[0031] The journal receptacle 1 has a receiving opening 3, which is defined and configured for the introduction of a roll journal of the roll (not represented). The receiving opening 3 has an inner surface 4, which, with its portions positioned outside the torque transmission surfaces 5, is in direct contact with the outer surface of the roll journal. The torque transmission surfaces 5, by contrast, are clad with wearing plates 6, in the present case two wearing plates 6 per torque transmission surface 5.

[0032] The wearing plates 6 extend in the direction of the axial direction 7 of the wobbler hub 8, which forms the journal receptacle 1 and delimits the receiving opening 3. Viewed In the axial direction, respectively two wearing plates 6 are positioned side by side, held by a clamping piece 9 positioned between these.

[0033] Each clamping piece 9 is inserted in a groove 10 of the respective torque transmission surface 5, which for the rest, that is to say apart from the groove 10, is of flat configuration. Each clamping piece 9 is screwed in the groove 10 by means of screws 11, wherein, in the shown illustrative embodiment, the screws 11 are positioned along a center line, extending in the axial direction 7, of the torque transmission surfaces 5, so that the connection region of the clamping pieces 9 are positioned on the torque transmission surfaces 5 outside the marginal regions positioned in the force flow, which are covered with the wearing plates 6.

[0034] According to the illustrative embodiment in FIG. 1, the clamping pieces 9 have in the shown radial section a T-shape, the foot of which is respectively inserted in the groove 10 and the two arms of which extend over a recess in the marginal region of the wearing plates 6, so that the wearing plates 6 are held in a positive-locking manner on the torque transmission surfaces 5.

[0035] In the shown illustrative embodiment, the clamping pieces 9 are screwed radially from outside through the wobbler hub 8, see the corresponding through-holes 12 in the wobbler hub 8.

[0036] In the illustrative embodiment according to FIG. 2, which broadly corresponds to that of FIG. 1, wherein mutually corresponding features are labeled with mutually corresponding reference symbols, the wearing plates 6, in the shown radial section, are also of T-shaped construction, yet are arranged rotated through 180 relative to the T-shape of the clamping pieces 9. It is hereby possible for the wearing plates 6 to engage in a holding groove 13 in the wobbler hub 8, with their arm facing away from the clamping piece 9, in order to form an undercut, which more reliably prevents the wearing plates 6 from being lifted off the torque transmission surfaces 5 once the clamping piece 9 is inserted. The surface of the foot of the wearing plates 6 hence forms the contact surface for the roll journal (not shown here in detail).

[0037] In the embodiment according to FIG. 3, a uniform bilateral locking of each wearing plate 6 on the torque transmission surfaces 5 is achieved, on the one side by contact surfaces 14, positioned obliquely to the surface of the torque transmission surfaces 5, between clamping piece 9 and wearing plates 6, and on the other side between oppositely obliquely positioned contact surfaces 15 between the wearing plates 6 and the wobbler hub 8. By virtue of the conical design of the clamping pieces 9 in conjunction with the design of the contact surfaces 15, the wearing plates 6 are held respectively in a dovetail groove.

[0038] In FIG. 4, the positioning of a journal receptacle 1 at the axial end of a drive shaft 16 (here constructed as a universal joint shaft) of a roll drive train is represented schematically. The drive shaft 16 is driven at least indirectly by the drive machine 17. The journal receptacle 1 with its wobbler hub 9 is slid onto the roll journal 18 of the driven roll 19 and driven over the torque transmission surfaces 5 (not represented here in detail).