Brake disc arrangement

Patent metadata

Field	Value
Publication number	US-11999189-B2
Application number	US-201917291877-A
Country	US
Kind code	B2
Filing date	Dec 2, 2019
Priority date	Dec 5, 2018
Publication date	Jun 4, 2024
Grant date	Jun 4, 2024

Abstract

A hub configured to rotate about an axis of rotation in the circumferential direction, and having a connection surface and a connection opening, the connection opening configured to at least partially receive a connector, the connection surface configured to contact indirectly and/or directly with a contact surface of a brake disc, where the contact surface does not include connection openings.

First claim

The invention claimed is:

1. A brake disc arrangement, comprising
a brake disc configured to rotate about an axis of rotation in a circumferential direction, the brake disc having a contact surface and a mounting surface;
a hub having a connection surface and a connection opening; and
at least one connector;
wherein a mounting opening extends from the mounting surface;
wherein the contact surface is configured to indirectly or directly contact the connection surface of the hub;
wherein the connector is configured to extend at least partially in the mounting opening and the connection opening; and
wherein the mounting surface is free of hub contact.

2. The brake disc arrangement according to claim 1 , wherein the hub comprises a core portion, a cantilever portion and a brake disc connection portion, the cantilever portion and the brake disc connection portion extend radially in a radial direction from the core portion, the cantilever portion comprises a wheel contact surface and at least one connection opening, and wherein the brake disc connection portion comprises at least one contact surface.

3. The brake disc arrangement according to claim 2 , wherein the core portion includes an intermediate portion which lies in a direction of the axis of rotation between the cantilever portion and the brake disc connection portion, and wherein the intermediate portion does not include ribs.

4. The brake disc arrangement according to claim 3 , wherein the intermediate portion has a more tapered outer geometry compared to the cantilever portion and/or compared to the brake disc connection portion.

5. The brake disc arrangement according to claim 1 , wherein a ratio of a mean distance of the contact surface from the axis of rotation to a mean distance of the mounting opening from the axis of rotation is in a range of 0.6 to 1.5.

6. The back disc arrangement of claim 5 , wherein the range is 0.8 to 1.2.

7. The back disc arrangement of claim 6 , wherein the range is 0.9 to 1.1.

8. The brake disc arrangement according to claim 1 , wherein a ratio of a maximum extension of the brake disc in a direction of the axis of rotation to a maximum extension of the hub in the direction of the axis of rotation is in a range of 0.07 to 0.5.

9. The brake disc arrangement of claim 8 , wherein the range is 0.1 to 0.3.

10. The brake disc arrangement of claim 9 , wherein the range is 0.15 to 0.25.

11. The brake disc arrangement according to claim 1 , wherein a ratio of a maximum extension of the connector to a maximum extension of the hub in a direction of the axis of rotation is in a range of 0.3 to 1.1.

12. The brake disc arrangement of claim 11 , wherein the range is 0.5 to 0.95.

13. The brake disc arrangement of claim 12 , wherein the range is 0.7 to 0.85.

14. The brake disc arrangement according to claim 1 , wherein the brake disc has projections projecting in a direction of the axis of rotation and/or in a radial direction, at least one mounting surface forms a part of a projection, and wherein the mounting surface forms an edging end face for the projection in the direction of the axis of rotation.

15. The brake disc arrangement according to claim 14 , wherein the projections are engageable with a complementary toothing of the hub.

16. The brake disc arrangement according to claim 1 , wherein the brake disc and the hub are configured to be torquingly connected via a polygonal connection.

17. The brake disc arrangement according to claim 16 , wherein a toothing of the brake disc has a play in the circumferential direction relative to a toothing of the hub of between 0.1 mm and 2 mm, and/or wherein the polygon connection has a play in the circumferential direction, in particular between 0.1 mm and 2 mm.

18. The brake disc arrangement according to claim 1 , wherein the hub is one piece.

19. The brake disc arrangement according to claim 1 , wherein the intermediate portion, in at least one cutting plane the normal of which is parallel to the axis of rotation, forms a cross-section which has a circular outer contour around the axis of rotation.

20. The brake disc arrangement according to claim 1 , wherein the hub has ribs which preferably run in a direction of a radial direction and/or in a direction of the axis of rotation, at least one connection surface forms part of a respective rib, and wherein the ribs extend only in the brake disc connection portion.

21. The brake disc arrangement according to claim 1 , wherein the hub has a wheel bolt receptacle in the cantilever portion.

22. The brake disc arrangement according to claim 1 , wherein at least one connection opening, completely penetrates the cantilever portion of the hub.

23. The brake disc arrangement according to claim 1 , wherein the hub has air ducts which extend in a direction of the axis of rotation.

24. The brake disc arrangement according to claim 1 , wherein the hub has at least one bearing contact surface, for a wheel bearing, and wherein the core portion includes the at least one bearing contact surface.

25. The brake disc arrangement according to claim 1 , wherein the at least one bearing contact surface includes at least two bearing contact surfaces.

26. The brake disc arrangement according to claim 1 , wherein the hub has at least one centering projection, and wherein the at least one centering projection delimits a connection surface in an outward direction of a radial direction.

27. The brake disc arrangement according to claim 1 , wherein the hub has a plurality of connection surfaces, and wherein each of the connection surfaces is bounded in an outward direction of a radial direction by a centering projection.

28. The brake disc arrangement according to claim 1 , wherein the contact surface is one of a plurality of contact surfaces, and wherein the mounting surfaces is one of a plurality of mounting surfaces, and wherein the plurality of contact surfaces and the plurality of mounting surfaces are arranged alternately in the circumferential direction.

29. The brake disc arrangement according to claim 1 , wherein the mounting opening is one of a plurality of mounting openings, and wherein a distance of each of the mounting openings from the axis of rotation is greater than a mean distance of the contact surface from the axis of rotation.

30. The brake disc arrangement according to claim 1 , wherein the contact surface and/or the connection surface has/have an averaged normal substantially parallel to a direction of extension of the connector and/or to the axis of rotation.

31. The brake disc arrangement according to claim 1 , wherein the mounting opening completely penetrates the brake disc.

32. The brake disc arrangement according to claim 1 , wherein the brake disc is bent and/or V-shaped and/or shielded in a direction of a radial direction, at least in a non-assembled state, away from the wheel hub.

33. The brake disc arrangement according to claim 1 , wherein the brake disc is transversely ventilated.

Assignees

• Saf Holland Gmbh

Inventors

• Hartmann Mark

Classifications

• B60B27/0052 Primary

  the element being a brake disc · CPC title

• F16D65/123 Primary

  comprising an annular disc secured to a hub member; Discs characterised by means for mounting · CPC title

• F16D2065/1316

  radially segmented · CPC title

• F16D2065/1328

  internal cavities, e.g. cooling channels · CPC title

• F16D2065/136

  with relative movement radially · CPC title