Carrier disc arrangement for a brake arrangement and electromagnetically actuated brake arrangement with carrier disc arrangement

Abstract

Carrier disc arrangement for a brake arrangement, wherein the carrier disc arrangement comprises a hub part, two friction linings and two discs (2), wherein the discs (2) are connected to the hub part, characterized in that a first of the two discs (2) has a surface area having first recesses, in particular which is arranged on the side of the first disc (2) facing away from the second disc (2), wherein the second of the two discs (2) also has a surface area having first recesses, in particular which is arranged on the side of the second disc (2) facing away from the first disc (2), wherein a first friction lining is bonded to and / or adhesively connected to the surface area of ​​the first of the two discs (2), wherein a second friction lining is bonded to and / or adhesively connected to the surface area of ​​the second of the two discs (2),wherein the first depressions are produced and / or processed by means of a laser, wherein a damping element is arranged axially between the two disks (2), wherein the two surface areas each have not only the first depressions but also second depressions, wherein the second depressions are designed as grooves or ridges extending in a radial direction.

Description

[0001] The invention relates to a carrier disc arrangement for a brake arrangement and an electromagnetically actuated brake arrangement with a carrier disc arrangement.

[0002] Surface processing using lasers is known from DE 10 2015 122 200 A1.

[0003] A wheel brake is known from DE 101 54 333 A1.

[0004] A brake body is known from DE 10 2011 089 125 A1.

[0005] US Patent 2,580,869 A describes an electromagnetically actuated clutch as the closest prior art.

[0006] Surface cavities, i.e. depressions in a surface, are known from EP 0 626 228 A1.

[0007] A disc brake with reduced noise is known from US patent 3,478,849 A.

[0008] A multi-part disc brake is known from US 4 072 219 A.

[0009] A brake pad carrier for partial pad disc brakes is known from DE 33 17 913 A.

[0010] A carbon composite brake with noise damping is known from US patent 5,143,184 A.

[0011] Brake pads are known from US 5 823 301 A.

[0012] A printed brake disc for bicycles is known from DE 20 2012 001 391 U1.

[0013] A brake pad for a disc brake is known from US 2012 / 0 152 669 A1.

[0014] A brake shoe with friction lining is known from AT 277 311 B.

[0015] The invention is therefore based on the objective of further developing a brake pad carrier of a brake assembly.

[0016] According to the invention, the problem is solved in the carrier disc arrangement according to the features specified in claim 1 and in the brake arrangement according to the features specified in claim 15.

[0017] Important features of the invention for the carrier disc arrangement for the brake arrangement are that the carrier disc arrangement comprises a hub part, two friction linings and two discs, wherein the discs are connected to the hub part, in particular by means of axially directed screws, wherein a first of the two disks has a surface area having first depressions, in particular which is arranged on the side of the first disk facing away from the second disk, wherein the second of the two disks also has a surface area having first depressions, in particular which is arranged on the side of the second disk facing away from the first disk, wherein a first friction lining is glued to the surface area of ​​the first of the two discs and / or is adhesively bonded to the first disc, wherein a second friction lining is glued to the surface area of ​​the second of the two discs and / or is adhesively bonded to the second disc, The advantage of this design is that the indentations improve the adhesion of the adhesive bond. This ensures a stable bond even at high speeds.

[0018] According to the invention, the first recesses are produced and / or processed using a laser. An advantage of this method is that cost-effective processing with high precision can be achieved. Defined shapes can be created for the recesses. Furthermore, compared to sandblasting, there are lower environmentally relevant emissions.

[0019] In an advantageous embodiment, the first depressions are each circular, square, kidney-shaped, or rectangular. It is advantageous that the first depressions can each be formed in the same way. For a point-like shape, i.e., a circular shape, only one laser pulse or a series of laser pulses needs to be directed at a single point to produce each depression. Kidney-shaped depressions can also be produced by moving the laser beam non-uniformly relative to the respective disk. The preferred orientation of these kidney-shaped shapes is preferably radial. In this way, further improved adhesion can be achieved. Rectangular shapes can also be oriented radially to improve adhesion.Instead of circular shapes, square shapes are possible, with the sharp inner corners of each square providing improved adhesion for the adhesive.

[0020] In an advantageous embodiment, the first recesses are each oval in shape and aligned in a radial direction. In particular, the longest dimension of the first indentations is aligned radially, and the shortest dimension is aligned circumferentially. The advantage of this is that improved adhesive adhesion, and thus a better bond, can be achieved regardless of the direction of rotation.

[0021] In an advantageous embodiment, the first recesses are regularly spaced apart from one another in the circumferential and / or radial direction. It is advantageous that a uniform braking force, independent of the circumferential angle, can be generated. In an advantageous embodiment, the two surface areas each have not only the first recesses but also second recesses. wherein the second depressions are designed as grooves or ridges extending in a radial direction, in particular wherein the radial spacing area covered by the first recesses is encompassed by the radial spacing area covered by the second recesses and the radial spacing area not covered by the radial spacing area covered by the first recesses is arranged radially within the radial spacing area covered by the first recesses, In particular, the first depressions are circularly symmetrical, especially point-shaped. An advantage of this is that improved adhesion can be achieved by means of the radially ray-like second depressions; however, with increasing radial spacing, the distance between circumferentially adjacent radially ray-like depressions increases. Thus, the adhesive bond can also be improved in these circumferentially arranged intermediate regions by means of the second depressions, since second depressions can be arranged there.

[0022] In a preferred design, the discs are made of aluminum. This offers the advantage of cost-effective manufacturing. Furthermore, the heat generated during braking can be dissipated. In addition, the brake pad carrier has a low moment of inertia.

[0023] In a preferred design, the hub component is a steel hub. The advantage here is that a stable and cost-effective brake assembly can be manufactured.

[0024] In an advantageous embodiment, the hub part has internal teeth. An advantage of this is that the hub part is axially displaceable on the shaft.

[0025] According to the invention, a damping means is arranged axially between the two discs, In particular, the damping material is a studded sheet, especially a sheet metal part with studs formed on it, or a piece of paper or a plastic part. An advantage of this is that noise reduction during braking can be achieved and the braking forces introduced via the first friction lining are separated from the adhesive bond of the other friction lining.

[0026] In an advantageous embodiment, the hub part and the discs are arranged concentrically to each other, wherein the discs are mounted on the hub part and the discs are of the same design and are arranged in direct contact with each other, In particular, the discs are designed as perforated discs, especially as hollow cylinders. An advantage of this is that it allows for simple manufacturing.

[0027] In an advantageous embodiment, the first disk has a laser-generated coding in an area of ​​the surface of the first disk which is radially spaced from the surface area of ​​the first disk. wherein the radial spacing area covered by the region is arranged radially within the radial spacing area covered by the surface region, In particular, the encoding features a DataMatrix code. An advantage of this is that the recesses and the encoding can be produced in the same manufacturing step.

[0028] Key features of the electromagnetically actuated brake assembly with carrier disc assembly are that the carrier disc assembly functions as the brake pad carrier of the brake assembly, the brake arrangement - an anchor disc - a coil - a magnetic carrier - a part having a braking surface - has a wave that can be slowed down, wherein the brakeable shaft has external teeth or is non-rotatably connected to a component having external teeth, wherein the internal toothing of the hub part is engaged with the external toothing in such a way that the hub part is positively connected to the shaft in the circumferential direction and is arranged to be displaceable in the axial direction on the shaft, wherein the armature disk is positively connected to the magnet carrier in the circumferential direction and is arranged to be displaceable in the axial direction relative to the magnet carrier, in particular by means of guide pins connected to the magnet carrier, wherein the coil is received in the magnet carrier, in particular wherein the coil designed as a ring coil is received in an annular groove of the magnet carrier, wherein the armature disk is arranged axially between the magnet carrier and the brake pad carrier, wherein the brake pad carrier is arranged axially between the anchor disc and the part having the braking surface.

[0029] An advantage of this design is that the brake assembly can be used with a high-speed shaft requiring braking. The adhesive bond within the brake pad carrier has also been improved.

[0030] Further advantages arise from the dependent claims. The invention is not limited to the combination of features of the claims. For those skilled in the art, further meaningful combinations of claims and / or individual claim features and / or features of the description and / or the figures will become apparent, in particular from the problem statement and / or the problem arising from a comparison with the prior art.

[0031] The invention will now be explained in more detail with reference to schematic illustrations: In the Fig. Figure 1 shows a front view of a carrier disk arrangement. In the Fig. Figure 2 shows a cross-section through the carrier disk arrangement. In the Fig. Figure 3 shows the corresponding rear view of the carrier disc arrangement.

[0032] As shown in the figures, the carrier disc arrangement features an internal toothing. 4and axially through threaded holes for screws 3 and equipped steel hub 1 on.

[0033] This involves two adjacent, coaxially arranged discs. 3 by means of the screws 3 with the steel hub 1 screwed together.

[0034] The screws 3 are axially oriented, screwed into the threaded holes and partially protrude from the steel hub. 1 out of here.

[0035] Preferably the discs 2 Made of aluminium.

[0036] The discs 2 are each designed as a hollow cylinder, with the axial direction aligned parallel to the cylinder axis of this respective hollow cylindrical area.

[0037] The discs are laser-treated on their respective outer surfaces, creating indentations. Thus, the carrier disc assembly has a laser-treated surface area on both its axial front and back sides.

[0038] The one at the front, on one of the first of the windows 2 The arranged surface area is preferably a circular ring.

[0039] The one on the back, on the other side of the window 2 The arranged surface area is preferably also a circular ring.

[0040] In this way, friction linings can be bonded to the discs using adhesive. 2 The treated surface areas result in particularly good adhesion of the adhesive bond, especially the adhesive. The adhesive bonds better through the indentations than to a surface area without indentations.

[0041] The depressions are each formed like points because, during processing, a separate laser pulse is directed at the center point of each depression. Each depression therefore exhibits rotational symmetry about its central axis.

[0042] One of the discs 2 points a laser at the surface of the disc 2 applied coding 5 Thus, laser processing, as a single processing step, not only creates the surface area roughened by indentations but also the area with the coding. 5 provided area.

[0043] The coding 5 preferably contains nameplate data.

[0044] The coding is advantageous. 5mounted in a radial spacing area that is radially spaced from the radial spacing area covered by the laser-processed surface area.

[0045] The recesses are advantageously spaced regularly from one another in the circumferential direction. This ensures that the friction pads bonded to the discs generate a substantially constant braking torque during braking. Regular spacing in the radial direction is also advantageous.

[0046] As described, the friction linings are bonded to the discs using adhesive. 2 , which are made of aluminum. Since the discs 2 by means of the screws 3 with the internally toothed steel hub 1The brake pad carrier, formed by screw connections, can be mounted on a shaft that has corresponding external teeth. Thus, the internal and external teeth mesh with each other, and the shaft is positively connected to the brake pad carrier in the circumferential direction. In the axial direction, i.e., in the direction of the shaft's axis of rotation, the brake pad carrier is slidably mounted on the shaft.

[0047] The shaft is rotatably mounted in a housing part by means of a bearing. The housing part is non-rotatably connected to a magnet carrier, in particular by means of axially oriented bolts.

[0048] The magnet carrier is made of ferromagnetic material, such as cast steel, and has an annular groove on its side facing the brake pad carrier, in which a ring coil, in particular a brake coil, is received. Preferably, this ring coil is surrounded, and in particular held, in the annular groove by potting compound.

[0049] An armature disk is arranged axially between the brake pad carrier and the ring coil. This disk is rotationally fixed to the magnet carrier but is axially movable. For this purpose, the bolts pass through axially oriented recesses in the armature disk. The bolts are partially inserted into axially oriented boreholes in the magnet carrier.

[0050] A spring element supported on the magnet carrier presses the armature disc against a first friction lining of the brake pad carrier, particularly when the ring coil is unenergized. The brake pad carrier is then pressed with its second friction lining against a braking surface formed on a housing part. This friction lining is located on the side of the brake pad carrier axially facing the armature disc. When the ring coil is energized, the armature disc is pulled towards the ring coil, overcoming the spring force.

[0051] In further embodiments according to the invention, the external toothing is not directly incorporated into the outer circumference of the shaft but is designed as the toothing of a toothing part, in particular a pinion, wherein the shaft is connected to the toothing part in a rotationally fixed manner, in particular by means of a keyway connection.

[0052] In the event of a power failure, the braking arrangement described here engages, and when the ring coil is energized, the brake is released.

[0053] This brake assembly, which includes the brake pad carrier, can be installed in or on an electric motor. The shaft is either non-rotatably connected to the rotor shaft of the electric motor or is manufactured as a single piece.

[0054] In further embodiments of the invention, the two discs do not touch directly but are spaced apart by an axially interposed damping element. Preferably, the wall thickness of this element is less than the wall thickness of each of the two discs. Preferably, a dimpled sheet, a plastic part, or paper, in particular NOMEX paper, can be used as the damping element.

[0055] In further embodiments of the invention, the recesses, in particular those arranged at the same radial distance, are not regularly spaced apart from one another in the circumferential direction. In this way, the tendency of the overall system comprising the carrier disc assembly to vibrate during braking is reduced, since not a single vibration-stimulating frequency occurs, but rather several frequencies with smaller amplitudes. Even if the overall system were to exhibit a potentially hazardous resonant frequency, insufficient energy would be transferred to the corresponding excitation frequency to cause dangerously high amplitudes of the resonant vibration. Thus, noise emission is also reduced.

[0056] In further embodiments of the invention, oval depressions are produced by the laser instead of point-shaped depressions, wherein the oval depressions are radially oriented, i.e., they extend further in the radial direction than in the circumferential direction. Preferably, point-shaped depressions are also arranged in a radial spacing range that is arranged radially within the radial spacing range also covered by the oval depressions.

[0057] This also improves adhesion when braking forces are applied.

[0058] In further embodiments of the invention, radially directed grooves or ridges are generated by the laser. Additionally, point-shaped depressions are present, particularly in the radially outer region of the respective surface area.

[0059] In further embodiments of the invention, the recesses are not circular or oval but kidney-shaped, square, or rectangular. In this way, depending on the material of the friction lining and the adhesive applied between the friction lining and the disc, a further improved adhesion can be achieved.

[0060] In further embodiments according to the invention, the depressions are cross-shaped or double cross-shaped, in particular wherein the cross(s) are not perpendicular. Reference symbol list 1 steel hub with internal teeth 4 and threaded holes for screws 3 2 aluminum discs 3 screws 4 Internal teeth 5. Coding, in particular Data Matrix code QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] DE 102015122200 A1

[0002] DE 10154333 A1

[0003] DE 102011089125 A1

[0004] US 2580869 A

[0005] EP 0626228 A1

[0006] US 3478849 A

[0007] US 4072219 A

[0008] DE 3317913 A

[0009] US 5143184 A

[0010] US 5823301 A

[0011] DE 202012001391 U1

[0012] US 20120152669 A1

[0013] AT 277311 B

[0014]

Claims

[1] Carrier disc arrangement for brake assembly, wherein the carrier disc arrangement comprises a hub part, at least one friction lining and a disc, wherein the disc is connected to the hub part, in particular by means of axially directed screws, characterized by , that the disc has a surface area with initial depressions, wherein a first friction lining is glued to the surface area of ​​the disc and / or is adhesively bonded to the disc. [2] Carrier disc arrangement for brake assembly, wherein the carrier disc assembly comprises a hub part, two friction linings and two discs, wherein the discs are connected to the hub part, in particular by means of axially directed screws (3), characterized by , that a first of the two disks has a surface area having first depressions, in particular which is arranged on the side of the first disk facing away from the second disk, wherein the second of the two disks also has a surface area having a first depression, in particular which is arranged on the side of the second disk facing away from the first disk, wherein a first friction lining is glued to the surface area of ​​the first of the two discs and / or is adhesively bonded to the first disc, wherein a second friction lining is glued to the surface area of ​​the second of the two discs and / or is adhesively bonded to the second disc, where the first depressions are produced and / or processed using a laser, wherein a damping element is arranged axially between the two discs. [3] Carrier disk arrangement according to claim 1, characterized by that the first depressions are produced and / or processed using a laser. [4] Carrier disc arrangement according to at least one of the preceding claims, characterized by that the first depressions are each geometrically identical in shape, in particular each being the same size. [5] Carrier disc arrangement according to at least one of the preceding claims, characterized by , that the first depressions are each circular, square, kidney-shaped or rectangular or that the first depressions are each shaped like a cross or a double cross. [6] Carrier disk arrangement according to one of claims 1 to 3, characterized by , that the first indentations are each oval in shape and are oriented in a radial direction, In particular, the longest extent of the first depressions is aligned in the radial direction and the shortest extent in the circumferential direction. [7] Carrier disc arrangement according to at least one of the preceding claims, characterized by that the first depressions are regularly spaced apart in the circumferential direction and / or in the radial direction. [8] Carrier disc arrangement according to at least one of the preceding claims, characterized by , that the hub and the disc are formed in one piece, i.e., as a single unit, especially from steel, or that The hub and the two discs are made in one piece, i.e., as a single unit, especially of steel. [9] Carrier disc arrangement according to at least one of the preceding claims, characterized by , that A damping element is arranged axially between the two discs. in particular wherein the damping material is a studded sheet, in particular a sheet metal part with studs formed on it, or a piece of paper or a plastic part. [10] Carrier disc arrangement according to at least one of the preceding claims, characterized by , that the two surface areas each have not only the first depressions but also second depressions, wherein the second depressions are designed as grooves or ridges extending in a radial direction, in particular wherein the radial spacing area covered by the first recesses is encompassed by the radial spacing area covered by the second recesses and the radial spacing area not covered by the radial spacing area covered by the first recesses is arranged radially within the radial spacing area covered by the first recesses, in particular wherein the first depressions are circularly symmetrical, especially point-shaped, depressions. [11] Carrier disc arrangement according to at least one of the preceding claims, characterized by , that the discs are made of aluminum and / or that The hub part is a steel hub. [12] Carrier disc arrangement according to at least one of the preceding claims, characterized by that the hub part has internal teeth. [13] Carrier disc arrangement according to at least one of the preceding claims, characterized by , that the hub part and the discs are arranged concentrically to each other, wherein the discs are mounted on the hub part and the discs are of the same design and are arranged in direct contact with each other, in particular wherein the discs are designed as perforated discs, especially as hollow cylinders. [14] Carrier disc arrangement according to at least one of the preceding claims, characterized by , that the first disk has a laser-generated code in an area of ​​the surface of the first disk which is radially spaced from the surface area of ​​the first disk, wherein the radial spacing area covered by the region is arranged radially within the radial spacing area covered by the surface region, in particular where the encoding has a DataMatrix code. [15] Electromagnetically actuated brake arrangement with carrier disc arrangement according to at least one of the preceding claims, wherein the carrier disc arrangement acts as the brake pad carrier of the brake arrangement, wherein the brake arrangement - an anchor disc - a coil - a magnetic carrier - a part having a braking surface - a wave that can be slowed down exhibits characterized by , that the brakeable shaft has external teeth or is non-rotatably connected to a component having external teeth, wherein the internal toothing of the hub part is engaged with the external toothing in such a way that the hub part is positively connected to the shaft in the circumferential direction and is arranged to be displaceable on the shaft in the axial direction, wherein the armature disk is positively connected to the magnet carrier in the circumferential direction and is arranged to be displaceable in the axial direction relative to the magnet carrier, in particular by means of guide pins connected to the magnet carrier, wherein the coil is received in the magnet carrier, in particular wherein the coil designed as a ring coil is received in an annular groove of the magnet carrier, wherein the armature disk is arranged axially between the magnet carrier and the brake pad carrier, wherein the brake pad carrier is arranged axially between the anchor disc and the part having the braking surface.

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