阅读说明：本技术 制动盘和用于制造制动盘的方法 (Brake disc and method for producing a brake disc ) 是由 I.博佐维奇 R.拉布 L.勒巴齐克 于 2018-08-02 设计创作，主要内容包括：本发明涉及一种制动盘,具有至少部分地由第一种材料构成的摩擦环(101a/b)和至少部分地由与所述第一种材料不同的第二种材料构成的制动盖(103)。在此,所述摩擦环具有沿着轴向方向构成的凸缘,所述凸缘借助于至少一个构造为铆钉(102)的连接元件与所述制动盖(103)的指向摩擦环的边缘相连接,其中铆钉头(102)面状地抵靠在所述制动盖的背离凸缘的表面(2014)上。(The invention relates to a brake disk having a friction ring (101 a/b) which is at least partially made of a first material and a brake cover (103) which is at least partially made of a second material which is different from the first material. The friction ring has a flange formed in the axial direction, which is connected to the edge of the brake cover (103) facing the friction ring by means of at least one connecting element in the form of a rivet (102), wherein the rivet head (102) rests in a planar manner on a surface (2014) of the brake cover facing away from the flange.)

1. Brake disc having

A friction ring (101 a, 101 b) at least partially made of a first material, and

a brake cover (103) at least partially made of a second material different from the first material, wherein

The friction rings (101 a, 101 b) have flanges (201, 202) formed along the axial direction, and

the flange (201, 202) is connected to the edge of the brake cover (103) facing the friction ring (101 a, 101 b) by means of at least one connecting element (102) designed as a rivet,

it is characterized in that the preparation method is characterized in that,

the rivet head (205) bears in a flat manner against a surface (203) of the brake cover (103) facing away from the flange.

2. Brake disc according to claim 1, characterized in that the brake cover (103) is at least partially made of light metal, in particular aluminium.

3. Brake disc according to claim 1, characterized in that the brake cover (103) is at least partially made of metal, in particular sheet metal.

4. Brake disc according to claim 1, characterized in that the friction rings (101 a, 101 b) are made of grey cast iron.

5. Brake disc according to claim 1, characterized in that the flanges (201, 202) are configured in a shaped manner on the friction rings (101 a, 101 b).

6. Method for manufacturing a brake disc having:

a friction ring (101 a, 101 b) at least partially made of a first material, said friction ring having a flange (201, 202) formed in the axial direction, and

a brake cover (103) at least partially made of a second material different from the first material,

the method has the following steps:

providing (401) the at least one friction ring (101 a, 101 b),

-providing (402) the brake cover (103),

connecting (403) the flange (201, 202) to an edge of the brake cover (103) facing the friction ring (101 a, 101 b) by means of at least one connecting element (102) designed as a rivet,

it is characterized in that the preparation method is characterized in that,

the connection is carried out in such a way that the rivet head (205) is subjected at least temporarily to a greater force (206) at its edge than at its center and acts substantially vertically.

7. Method according to claim 6, characterized in that the connection (403) is made by means of a tool (202) having a rounded surface, wherein the rounded surface is brought into contact with the rivet head.

8. Method according to claim 6, characterized in that the brake cover (103) is at least partially composed of a light metal, in particular aluminum.

9. Method according to claim 6, characterized in that the brake cover (103) is at least partially made of metal, in particular sheet metal.

10. Method according to claim 6, characterized in that the friction rings (101 a, 101 b) are made of gray cast iron.

Technical Field

The invention relates to a brake disc or a method for producing a brake disc having the features of the independent patent claims.

Background

The task of a brake disk is to transmit a braking torque to the axle during deceleration of the vehicle and to temporarily store the kinetic energy occurring during braking in the form of heat for a short time and then to output it again by conduction, radiation and convection.

In the prior art, brake discs are usually made in one piece from cast iron with flake graphite.

In the context of a lightweight construction, the brake disk is replaced, in particular in the region of the brake cover (Bremstopf), by other materials which are generally lighter than gray cast iron. Sheet metal covers may be mentioned here by way of example. Likewise, the brake cover can be replaced by an aluminum cover. DE 10032972B 4 may be mentioned by way of example for this purpose. A composite brake disk for a vehicle is described, comprising a friction ring made of cast material, which is fastened to a brake disk cover made of another material. The friction ring and the brake cover are now connected by means of the connecting element by means of the joint between the friction ring and the brake disk cover.

Disclosure of Invention

The invention relates to a brake disk, comprising:

a friction ring at least partially made of a first material,

a brake cover at least partially made of a second material different from the first material, wherein

The friction ring has a flange formed in the axial direction, and

the flange is connected to the edge of the brake cover facing the friction ring by means of at least one connecting element in the form of a rivet.

The invention is characterized in that the rivet head bears in a planar manner against a surface of the brake cover facing away from the flange.

In order to achieve a stable mechanical connection between the flange of the friction ring and the brake cover, a good mechanical connection between the connecting element and the brake cover and/or the flange is necessary. This can be achieved, for example, by a recess in the region of the connecting element. However, the material of the lightweight construction of the brake cover typically has a thickness of only about 2.5 mm to 2.8 mm. For this reason, the voids in the region of the connecting elements lead to a further reduction of the already very thin material. The invention solves this problem by the rivet head abutting flat against the brake cover or the surface of the edge of the brake cover facing away from the flange. As a result, a very stable mechanical connection is produced between the flange of the friction ring and the brake cover.

It is particularly advantageous if the brake cover is at least partially made of a light metal, in particular aluminum. Likewise, the brake cover can be formed at least partially from metal, in particular sheet metal.

The friction ring can be made of gray cast iron.

In an advantageous embodiment of the invention, it is provided that the flange is formed on the friction ring in a shaped manner.

The invention also relates in particular to a method for producing a brake disk according to the invention. The method according to the invention here starts from:

a friction ring at least partially made of a first material, said friction ring having a flange formed in the axial direction, and

a brake cover at least partially constructed of a second material different from the first material.

According to the invention, the following steps are provided:

-providing said at least one friction ring,

-providing said stop cover in such a way that,

the flange is connected to the edge of the brake cover facing the friction ring by means of at least one connecting element designed as a rivet, wherein the connection is made in such a way that the rivet head is subjected at least temporarily to a force at its edge which is greater than at its center and acts substantially perpendicular to the rivet.

The deformation occurs by the forces distributed according to the invention acting on the rivet head in such a way that the rivet head bears essentially flat against the surface of the brake cover facing away from the flange.

It is particularly advantageous if the connection is made by means of a tool having a rounded surface, wherein the rounded surface is brought into contact with the rivet head in such a way that the rivet head is subjected to a force at its edge which is greater than at its center and which acts substantially vertically.

Further advantageous embodiments of the invention are apparent from the dependent claims and the exemplary embodiments.

Drawings

Embodiments of the invention are explained below with the aid of the figures. Wherein:

fig. 1 shows a brake disk of lightweight construction according to the invention, completely assembled;

fig. 2 shows a brake disk of lightweight construction according to the invention before assembly;

fig. 3 shows a sectional view of a brake disk according to the invention in a lightweight configuration, after assembly;

fig. 4 shows a production method according to the invention.

Detailed Description

The brake disk shown in fig. 1 has two annular disk- shaped brake rings 101a and 101b, which are connected to the spacer element. The brake disc shown is of an internally ventilated construction with the braking ring of a double-walled construction. The outer end faces of the brake ring constitute the annular disc- shaped friction surfaces 101a and 101b of the brake disc. The friction surfaces are the surfaces of the brake disk against which friction brake linings, not shown, are pressed during braking in order to brake the brake disk by friction. In such an embodiment, the brake disc is composed of gray cast iron or a steel alloy. The brake disc has a clearance 104 in the middle.

The reference numeral 103 denotes a brake cover which is connected to the brake disk by means of a connecting element 102.

Fig. 2 shows the brake disk shown in fig. 1 before the brake cover 103 is connected to the brake disk 101 a/b.

A flange 203 having outer surfaces 201 and 202 is arranged axially symmetrically on the brake disc 101 a/b. The connecting element 102 is shown above the holes in the flanges 201 and 202 to which it belongs. For the connection between the brake cover 103 and the brake disc 101a/b, holes provided in the outer edge of the brake cover 103 are congruent with the mentioned holes in the flange. The connecting means, which here is provided as a rivet 201, can then be set.

Both the flange and the outer edge of the catch cap 103 have angled, curved and/or rounded surfaces 201 and 202. These angled, curved and/or rounded surfaces 201 and 202 essentially follow the shape predefined by the circular recess 104.

Fig. 3 shows a sectional view of a lightweight brake disk according to the invention (top view of the friction surface facing the friction ring) after assembly. It can be seen that the rivet 102, more precisely the rivet head, is machined by a tool 202 with a contact surface angled toward the rivet head in such a way that the rivet head 205 rests flat against a surface 204 of the brake cover 103 facing away from the flange 203. The method for realizing the point is as follows: the rivet head 205 is subjected to a higher force 206 at its edge than at its center by the tool 202.

The method for producing a brake disk according to the invention will now be explained with the aid of fig. 4:

providing at least one friction ring 101a/b in step 401;

providing said brake cover 103 in step 402;

in step 403, the flanges 201, 202 are connected to the edge of the brake cover 103 facing the friction ring 101a/b by means of at least one connecting element 102 designed as a rivet. The connection is carried out in such a way that the rivet head 205 is subjected to a higher force 206 at its edge than at its center.