Carrier disk assembly for a brake assembly and electromagnetically actuable brake assembly with a carrier disk assembly

Abstract

In a carrier disk assembly for a brake assembly, and an electromagnetically actuable brake assembly with a carrier disk assembly, the carrier disk assembly has a hub part, two friction linings, and two disks. The disks are connected to the hub part, in particular with the aid of axially directed screws. Each one of the disks has a surface region provided with first depressions. A first friction lining is bonded and/or glued to the first disk in the surface region of the first of the two disks, and a second friction lining is bonded and/or glued to the second disk in the surface region of the second of the two disks.

Claims

1. A carrier disk assembly for a brake assembly, comprising: a hub part; at least one friction lining; a first disk connected to the hub part; and a damping device axially arranged between the first disk and a further disk of the carrier disk assembly; wherein the disk includes a surface region that is provided with first depressions, and a first friction lining is glued to the disk in the surface region of the disk.

2. The carrier disk assembly according to claim 1, wherein the first disk is connected to the hub part by axially-directed screws.

3. The carrier disk assembly according to claim 1, wherein the first depressions are produced and/or processed with the aid of a laser.

4. The carrier disk assembly according to claim 1, wherein the first depressions have a geometrically identical development and/or the same size.

5. The carrier disk assembly according to claim 1, wherein the first depressions are circular, square, kidney-shaped, and/or rectangular and/or the first depressions are arranged in the form of a cross and/or double cross.

6. The carrier disk assembly according to claim 1, wherein the first depressions have an oval configuration and are aligned in a radial direction.

7. The carrier disk assembly according to claim 6, wherein a longest extension of the first depressions is aligned in the radial direction and shortest extension of the first depressions is aligned in a circumferential direction.

8. The carrier disk assembly according to claim 1, wherein the first depressions are set apart from one another at regular intervals in a circumferential direction and/or in a radial direction.

9. The carrier disk assembly according to claim 1, wherein the hub and the first disk are integrally formed.

10. The carrier disk assembly according to claim 9, wherein the hub and the first disk are formed of steel.

11. The carrier disk assembly according to claim 1, wherein the damping device includes an embossed sheet metal part, a sheet metal part having nubs molded thereon, a piece of paper, and/or or a plastic piece.

12. The carrier disk assembly according to claim 1, wherein the surface region includes second depressions arranged as grooves and/or scores extending in a radial direction.

13. The carrier disk assembly according to claim 12, wherein a radial distance range covered by the first depressions is encompassed by a radial distance range covered by the second depressions, and a radial distance range not covered by the first depressions is arranged radially within the radial distance range covered by the first depressions.

14. The carrier disk assembly according to claim 1, wherein the first depressions are arranged as circular symmetrical and/or punctiform depressions.

15. The carrier disk assembly according to claim 1, wherein the first disk is formed of aluminum and/or the hub part is arranged as a steel hub.

16. The carrier disk assembly according to claim 1, wherein the hub part has an inner tooth system.

17. The carrier disk assembly according to claim 1, wherein the hub part and the first disk are arranged concentrically with respect to one another, and the first disk is accommodated on the hub part.

18. The carrier disk assembly according to claim 1, wherein the first disk is arranged as a perforated disk and/or a hollow cylinder.

19. The carrier disk assembly according to claim 1, wherein the first disk includes a coding, produced with the aid of a laser, in a region of a surface of the first disk that is radially set apart from the surface region of the first disk, a radial distance range covered by the region being arranged radially within a radial distance range covered by the surface region.

20. The carrier disk assembly according to claim 19, wherein the coding includes a data matrix code.

21. A carrier disk assembly for a brake assembly, comprising: a hub part; two friction linings; two disks connected to the hub part; and a damping device disposed axially between the two disks; wherein a first disk of the two disks includes a surface region including first depressions and being disposed on a side of the first disk facing away from a second disk of the two disks, the second disk includes a surface region including first depressions and disposed on a side of the second disk facing away from the first disk; wherein a first friction lining is glued to the first disk in the surface region of the first disk, a second friction lining is glued to the second disk in the surface region of the second disk, the first depressions being produced and/or processed using a laser.

22. The carrier disk assembly according to claim 21, wherein the two disks are connected to the hub part by axially directed screws.

23. The carrier disk assembly according to claim 21, wherein the first depressions have a geometrically identical development and/or the same size.

24. The carrier disk assembly according to claim 21, wherein the first depressions are circular, square, kidney-shaped, and/or rectangular and/or the first depressions are arranged in the form of a cross and/or double cross.

25. The carrier disk assembly according to claim 21, wherein the first depressions have an oval configuration and are aligned in a radial direction.

26. The carrier disk assembly according to claim 25, wherein a longest extension of the first depressions is aligned in the radial direction and a shortest extension of the first depressions is aligned in a circumferential direction.

27. The carrier disk assembly according to claim 21, wherein the first depressions are set apart from one another at regular intervals in a circumferential direction and/or in a radial direction.

28. The carrier disk assembly according to claim 21, wherein the hub and the two disks are integrally formed.

29. The carrier disk assembly according to claim 28, wherein the hub and the two disks are formed of steel.

30. The carrier disk assembly according to claim 21, wherein the damping device includes an embossed sheet metal part, a sheet metal part having nubs molded thereon, a piece of paper, and/or a plastic piece.

31. The carrier disk assembly according to claim 21, wherein the two surface regions include second depressions arranged as grooves and/or scores extending in a radial direction.

32. The carrier disk assembly according to claim 31, wherein a radial distance range covered by the first depressions is encompassed by a radial distance range covered by the second depressions, and a radial distance range not covered by the first depressions is arranged radially within the radial distance range covered by the first depressions.

33. The carrier disk assembly according to claim 21, wherein the first depressions are arranged as circular symmetrical and/or punctiform depressions.

34. The carrier disk assembly according to claim 21, wherein the disks are formed of aluminum and/or the hub part is arranged as a steel hub.

35. The carrier disk assembly according to claim 21, wherein the hub part includes an inner tooth system.

36. The carrier disk assembly according to claim 21, wherein the hub part and the disks are arranged concentrically with respect to one another, the disks are accommodated on the hub part, have an identical configuration, and are placed in direct contact with each other.

37. The carrier disk assembly according to claim 21, wherein the disks are arranged as perforated disks and/or as hollow cylinders.

38. The carrier disk assembly according to claim 21, wherein the first disk includes a coding, produced with the aid of a laser, in a region of a surface of the first disk that is radially set apart from the surface region of the first disk, a radial distance range covered by the region being arranged radially within a radial distance range covered by the surface region.

39. The carrier disk assembly according to claim 38, wherein the coding includes a data matrix code.

40. An electromagnetically actuable brake assembly, comprising: a carrier disk assembly arranged as a brake pad carrier of the brake assembly and including: (a) a hub part, at least one friction lining, and a disk connected to the hub part, the disk including a surface region that is provided with first depressions, a first friction lining being bonded and/or glued to the disk in the surface region of the disk; and/or (b) a hub part, two friction linings, two disks connected to the hub part, and a damping device disposed axially between the two disks, a first disk of the two disks including a surface region including first depressions and being disposed on a side of the first disk facing away from a second disk of the two disks, the second disk including a surface region including first depressions and disposed on a side of the second disk facing away from the first disk, a first friction lining being bonded and/or glued to the first disk in the surface region of the first disk, a second friction lining being bonded and/or glued to the second disk in the surface region of the second disk, the first depressions being produced and/or processed using a laser; an armature plate; a coil; a magnet holder; a part having a brake surface; and a shaft adapted to be decelerated; wherein the shaft includes an outer tooth system and/or is connected in a torsionally fixed manner to a component having an outer tooth system, an inner tooth system of the hub part being engaged with the outer tooth system such that the hub part is connected to the shaft in a keyed manner in a circumferential direction and is situated on the shaft displaceably in an axial direction, the armature plate being connected to the magnet holder by a keyed connection in the circumferential direction and is displaceable relative to the magnet holder in the axial direction, with the aid of guide pins connected to the magnet holder; wherein the coil is accommodated in the magnet holder, and the coil, arranged as an annular coil, is accommodated in an annular groove of the magnet holder, the armature plate being axially arranged between the magnet holder and the brake pad carrier; and wherein the brake pad carrier is axially arranged between the armature plate and the part having the brake surface.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a front view of a carrier disk assembly.

(2) FIG. 2 is a cross-sectional view of the carrier disk assembly.

(3) FIG. 3 is an associated rear view of the carrier disk assembly.

(4) FIG. 4 is a schematic cross-sectional view of a carrier disk assembly.

(5) FIGS. 5A to 5F schematically illustrate depressions.

(6) FIG. 6 is a schematic front view of a portion of a carrier disk assembly.

(7) FIG. 7 is a schematic cross-sectional view of a brake assembly.

DETAILED DESCRIPTION

(8) As illustrated in the Figures, the carrier disk assembly has a steel hub 1, which is provided with an inner tooth system 4 and axially uninterrupted threaded bores for screws 3.

(9) Two disks 3, which rest against each other and are coaxially arranged relative to each other, are connected to steel hub 1 with the aid of screws 3.

(10) Axially directed screws 3 are screwed into the threaded bores and partially project from steel hub 1.

(11) Disks 2 are, for example, made of aluminum.

(12) Disks 2 have a hollow-cylindrical configuration, and the axial direction is aligned in parallel with the cylinder axis of this respective hollow-cylindrical region.

(13) The outer sides of the disks 2 are processed by a laser so that they include depressions 30, e.g., circular depressions as schematically illustrated, for example, in FIGS. 1, 3, and 5A. The carrier disk assembly therefore has a surface region that is processed by a laser on its axial front side and rear side.

(14) The surface region situated on the front side on a first one of disks 2 is, for example, an annular ring.

(15) The surface region situated on the rear side on the other disk 2 is, for example, also an annular ring.

(16) In this manner, friction linings 10 are able to be connected to disks 2 with the aid of an adhesive bond, the processed surface regions bringing about a particularly satisfactory adhesion of the adhesive bond, in particular the glue. With the aid of the depressions, the glue has a better connection than in a surface region without depressions.

(17) The depressions are arranged in the shape of points because a laser pulse is directed toward, and acts on, the center point of each depression during the processing. Each depression therefore has a rotational symmetry with respect to its center axis.

(18) A first of disks 2 has a coding 5, which is applied with the aid of the laser on the surface of disk 2. The laser processing as a single processing step thus creates not only the surface region made coarser by the depressions but also the region provided with coding 5.

(19) Coding 5, for example, includes type sign data.

(20) For example, coding 5 is provided in a radial distance range that is radially set apart from the particular radial distance range covered by the surface region processed by the laser.

(21) For example, the depressions are set apart from one another at regular intervals in the circumferential direction. During braking, the friction linings bonded to the disks therefore generate a substantially constant braking torque. In the same manner, even spacing in the radial direction is, for example, provided.

(22) As described, the friction linings are adhesively bonded to disks 2, which are produced from aluminum. Since disks 2 are screw-fitted with steel hub 1 provided with an inner tooth system with the aid of screws 3, the thereby formed brake pad carrier is able to be placed onto a shaft 120 provided with a corresponding outer tooth system 110. In this regard, reference is made to, for example, FIG. 7. The inner tooth system and the outer tooth system thus engage with each other and the shaft is connected to the brake pad carrier in a keyed manner in the circumferential direction. In the axial direction, i.e., in the direction of the axis of rotation of the shaft, the brake pad carrier is situated on the shaft in a displaceable manner.

(23) The shaft is rotatably mounted in a housing part with the aid of a bearing. The housing part is connected to a magnet holder 50 in a torsionally fixed manner, in particular with the aid of axially directed and positioned pins.

(24) The magnet holder 50 is produced from a ferromagnetic material such as cast steel, and on its side facing the brake pad carrier it has an annular groove in which an annular coil 60 is accommodated, in particular a brake coil. This annular coil 60 is, for example, surrounded, especially retained, in the annular groove by casting compound.

(25) Situated axially between the brake pad carrier and the annular coil is an armature plate 80, which is connected to the magnet holder 50 in a torsionally fixed manner and disposed so as to allow for an axial movement. Toward this end, the pins 70 are guided through axially uninterrupted recesses in the armature plate 80. The pins are partially inserted into axially directed bores of the magnet holder 50.

(26) A spring element supported on the magnet holder 50 presses the armature plate 80 against a first friction lining 10 of the brake pad support, in particular, when the annular coil 60 is not energized, the brake pad support being pressed by its second friction lining 10 against a brake surface 100 arranged on a housing part 90. This friction lining 10 is situated on the side of the brake pad carrier axially facing the armature plate 80. When the annular coil 60 is energized, on the other hand, the armature plate 80 is pulled toward the annular coil 60, and the armature disk overcomes the spring force.

(27) In additional exemplary embodiments, the outer tooth system is not directly worked into the outer circumference of the shaft but is arranged as a toothing of a tooth system part, in particular, a slip pinion, and the shaft is connected to the tooth system part in a torsionally fixed manner, in particular, by a feather key connection.

(28) In the event of a power loss, the brake assembly is applied, and when the annular coil is energized, lifting of the brake is induced.

(29) This brake assembly having the brake pad carrier is able to be provided in or on an electric motor. The shaft is connected to the rotor shaft of the electric motor in a torsionally fixed manner or produced as one piece, i.e., in an integral fashion.

(30) In further exemplary embodiments, the two disks 2 do not have direct contact but are set apart via an axially interposed damping device 20. Its wall thickness is, for example, smaller than the wall thickness of each of the two disks 2. An embossed sheet metal, a plastic part or paper, in particular NOMEX paper, may be used as the damping device 20. In this regard, reference is made, for example, to FIG. 4, for example. In exemplary embodiments, the hub 1 and the disk 2 are integrally formed, i.e., as one piece. In this regard, reference is again made, for example, to FIG. 4.

(31) In additional exemplary embodiments, the depressions, in particular the depressions situated at the same radial distance, are not spaced apart from one another at regular intervals in the circumferential direction. This reduces the oscillation tendency of the overall system with the carrier disk assembly during braking because multiple frequencies that have a smaller amplitude occur rather than a single oscillating-exciting frequency. Even if the total system were to have a risk-prone resonant frequency, not enough energy to induce dangerously strong amplitudes of the resonant oscillation is thus introduced into the associated excitation frequency. The noise emission is therefore also able to be reduced.

(32) In further exemplary embodiments, oval depressions, e.g., as schematically illustrated, for example, in FIG. 5F, instead of the punctiform depressions are produced by the laser, the oval depressions having a radial orientation, i.e., extending farther in the radial direction R than in the circumferential direction C. Punctiform depressions are, for example, also disposed in a radial distance range situated radially within the radial distance range also covered by the oval depressions.

(33) The adhesion is therefore improved even under the action of brake forces.

(34) In further exemplary embodiments, radially directed scores or grooves 40, e.g., as schematically illustrated, for example, in FIG. 6, are produced with the aid of the laser. Present in addition are punctiform depressions, in particular in the radially outer region of the respective surface region.

(35) In further exemplary embodiments, the depressions 30 are not circular or oval but kidney-shaped, e.g., as schematically illustrated, for example, in FIG. 5C, square or rectangular, e.g., as schematically illustrated, for example, in FIG. 5B. This makes it possible to achieve an even better adhesion as a function of the material of the friction lining and the adhesive agent situated between the friction lining and the disk.

(36) In further exemplary embodiments, the depressions 30 have the form of a cross, e.g., as schematically illustrated, for example, in FIG. 5D, or double cross, e.g., as schematically illustrated, for example, in FIG. 5E, the cross or crosses in particular being non-rectangular.

LIST OF REFERENCE NUMERALS

(37) 1 steel hub including inner tooth system 4 and threaded bores for screws 3 2 aluminum disk 3 screws 4 inner tooth system 5 coding, in particular data matrix code 10 friction lining 20 damping device 30 depression 40 scores or grooves 50 magnet holder 60 coil 70 guide pin 80 armature plate 90 part having brake surface 100 100 brake surface 110 outer tooth system 120 shaft R radial direction C circumferential direction