Disc brake with calliper for automobiles of industrial application, as well as calliper and actuating mechanism of such brake

FIELD: automobile production.

SUBSTANCE: disc brake includes a calliper, an actuating mechanism and a fastener to fix an actuating mechanism on the calliper. Functional holes of the calliper and the actuating mechanism serve for connection of the actuating mechanism to a clamping device. The fastener is designed so that the second flange surface in the area located between the second functional hole and the fastener can be bent or deformed against elastic restoring force, and the restoring force can bring the second flange surface in individual sections to the pre-tension state in the direction to the first flange surface. The disc brake calliper, in which the first flange surface between the fastener and the functional holes is not flat. The actuating mechanism of the brake, in which the second flange surface between the fastener and the functional holes is not flat.

EFFECT: improving reliability owing to reducing negative effects on an actuating mechanism and a disc brake.

16 cl, 8 dwg

 

The invention relates to a disk brake with caliper, in particular, for vehicles for industrial use, with a caliper having a first flange surface with the first functional hole, the execution unit having the second flange surface with the second functional hole, which in the assembled state coaxially with the first functional hole, and a fixing device for fixing the actuator on the caliper, and functional holes are used to connect actuator with a clamping device. Clamping device, usually located in the caliper.

Disc brake with caliper aforementioned type is known. In the case of actuators, in particular, disc brakes of trucks, we are talking about pneumatic brake cylinders with spring energoakkumulyatorami, cylinder with double membrane or Electromechanical actuators or without them.

Recently appeared on the market a standard attachment that defines, in particular, the execution/form flange contour/surface, on the one hand, caliper disc brakes, and, on the other hand, on the bottom of the actuator. This standard should ensure that the adjustment actuators times the ranks of manufacturers under the same disc brake, ie, the adjustment actuators under different disc brakes.

In the usual Executive devices there are two mounting bolts (screws), protruding from the mounting plate, which is inserted into the flange holes on the caliper and screwed nuts, and the corresponding torque is usually pre-defined. In the field of functional holes is elastic spatial ring seal, which in the assembled state protects the internal space of the caliper, as well as the Executive of the device from the ingress of, for example, dirt and moisture.

In the known disc brakes with caliper of the outer contour of the second flange surface has the appearance as if the ear with the second functional hole in the center. In General, the circuit can be described as rectangular or elliptical. Its length is greater than the width.

Calipers of disc brakes, usually made of high-strength cast iron or steel parts. The first flange surface by appropriate processing is performed smooth/flat.

The housing Executive device at least at the bottom, ie, where is located the second flange surface, is made as obtained by the method of deep drawing parts of a steel sheet with a corresponding tol the other walls. Often the bolts (screws)protruding from the bottom part, fixed to it, for example, with a geometric circuit and/or circuit material.

In any case, part of the caliper disk brake, bearing the first flange surface has a greater rigidity of the material than the bottom part of the Executive device. Due to the above processing, the first flange surface is flatter than the second flange surface.

If the conventional disc brakes with caliper control device is installed on the caliper disc brakes and there is attached, as described above, due to irregularities in the flange region actuators in the contact position or the tightening of the bolts may result in deformed plate part, which leads to the formation of gaps at the top and bottom flange areas. In other words, the actual desired pre-tension on the entire contact surface is missing, because it exists only in the field bolted connections. If now during the drive, for example, due to unevenness of the road or areas of poor roads it comes to large accelerations relatively heavy actuators, it will lead to the formation of gaps. Due to the lack of support with reduced counteract the eating time (minimized lever) as a result of sudden shocks (shock) there occurs deformation of the material, so it is possible fractures of the material, and the brake mechanism may fail completely.

The basis of the invention is the improvement of the disk brake of the aforementioned type in such a way that negative impacts on the reliability of the actuator and disc brakes were reduced or even eliminated, in particular, that they were better suited to rough roads.

According to the invention the above problem in the case of the disk brake with caliper aforementioned type is solved due to the fact that the fastening device is designed so that the second flange surface in the area between the second functional hole and a mounting device against the elastic restoring force has been bent or deformed, and that this healing power led second flange surface at least at selected sites in the state of pre-tension in the direction of the first flange surface.

In other words, the elastic restoring force, for example, the bottom of the mounting device, or used to prevent or to compensate for the deformation, or the like, so that the case before the formation of the above clearances are not received.

According to the invention, the fastening device can be made is any form. Preferably it contains one screw and/or bolt with nut, in particular, two screws and two nuts.

According to the invention preferably has two fastening devices located on the same line with the first and/or second functional aperture and symmetrically with respect to it/them.

In this place should definitely indicate that the invention is not limited to disc brakes with caliper, in which the actuator is fixed directly to the caliper. Moreover, according to the invention may also be provided intermediate device located between the caliper and the mounting device, which contains a third flange surface.

An example of such intermediate devices is the case of the Electromechanical Parking brake.

To obtain provided according to the invention the bending of the second flange surface against the elastic restoring force can be provided to the first, second and/or third flange surface between the mounting device and functional holes was not/were flat.

So, for example, may be provided to the first, second and/or third flange surface had/had between the mounting device and functional holes in the ledge.

However, in order additions or al is ernative between two adjacent flange surfaces according to the invention can be provided by the gasket, located between the functional holes and mounting device, but at a distance from the mounting device.

In addition, according to the invention it is preferable that was provided by the sealing device for sealing the first and/or second functional holes.

According to one particularly preferred variant implementation of the invention for fixing the actuator has two or more fastening devices. In this case, furthermore, the second functional hole according to the invention preferably can be located in the middle between the two fixing devices. This corresponds to the usual run of the attachment.

According to the invention, the actuator may be secured to the caliper with any orientation. However, according to the invention it is preferable that the control device was installed in the axial or radial position relative to the brake disk.

According to one preferred variant implementation of the invention at least part of the actuator, which in the assembled state is bent against the action of elastic restoring force is produced by the method of deep drawing part of the steel sheet.

Along with the above-described disk brake with suppor the Ohm invention also allows you to create a caliper of such brakes, and the Executive unit of such brakes.

Below the invention is explained in more detail on the preferred examples with reference to the attached drawings for more details, where:

figure 1 - schematic perspective view of the caliper of the disk brake according to one exemplary embodiment of the invention,

figure 2 is a schematic axial view of the respective actuators,

figure 3 - schematic section of a support plate installed on it, but haven't screwed actuating device

4, 5 and 6 is the same as in figures 1, 2 and 3, but in one other example implementation, and

7 and 8 is the same as in figure 2 and 3, but in the third example implementation.

For example run in figure 1-3 refers to the support plate 10 with the flange surface 12. Furthermore, this includes the actuator 14 with the flange surface 16. The actuator 14 is made, for example, in the form of a pneumatic cylinder with spring energoakkumulyatorami or without him. However, it can be used as a cylinder with a double membrane. Another example is the Executive unit in Electromechanical design. The flange surface 16 has two sections 16A and 16b. They are made on the bottom 18 of the actuator 14. How, in particular, can be seen on figure 3, section 16A of the flange surface is ti 16 protrudes above section 16b, so between them is formed by two ledges 20, 22.

The caliper 10 is a functional hole 24, and two mounting holes 26, 28. Accordingly, the control device 14 also has a functional hole 30, and two mounting holes 32 and 34, which are respectively the bolts 36, 38. The bolts 36, 38 mounted on the actuator 14. Functional holes 24, 30 and the mounting holes 32, 34 preferably are located on the same line and symmetrically with respect to an axis of symmetry passing through the functional holes 24, 30.

In the assembled condition of the bolts (screws) 36, 38 pass through aligned to each other, the mounting holes 32, 26, respectively, 34, 28. Similarly, in the assembled state, the Executive element (plunger) 40 passes through coaxially with each other functional holes 30, 24. The actuating element 40 in the assembled state is connected to (not shown) clamping device inside of the caliper 10. To seal both functional holes 24, 30 is an annular seal 42.

Figure 3 shows schematically the caliper 10 has mounted on actuating device 14 to the fixture. For fixture not shown in the drawing, the bolt and nut are screwed on the bolts 36, 38. Thus, the nuts are on the back with the Auron flange surface 12. Then if the bolts are tightened, the flange surface 16A, 16b is bent in the region located between the mounting bolts 36, 38, on the one hand, and functional hole 30, with the other, as the gap 44, 46 shown in figure 3, is closed. Because bending is elastic, then on the flange surface 16 there is a corresponding restoring force, establishing the flange surface 16 in a state of pre-tension in the direction of the flange surface 12.

In other words, the implemented power screwing over the entire surface. The above-mentioned undesirable formation of gaps in screwed condition prevented. Due to this, compared with undesirable linear contact surface normal brakes creates a cross-shaped contact surface. Thus, continuity due to the elastic pre-tensioning of the material in the deformation even in a radial form provides maximum opposing points with a large lever. Thereby greatly improving the ability to bad conditions of roads. The action of the lever in figure 2 are indicated by the positions of the H1and H2.

To enable the elastic bending of the bottom 18 of the actuator 14 in the depicted example, the execution of the specified bottom 18 is made is of deep drawing sheet.

Embodiment of figure 4-6 essentially corresponds to the version of the execution in figure 1-3, but in this case, a protruding ledge supplied flange surface 16 of the bottom 18 of the actuator 14, and the opposite flange surface 12 of the caliper 10.

In this embodiment, the resulting tightening of the bolt connection of both of the bolts 36, 38 creates a bending moment, and resulting from this elastic restoring (return) power leads flange surface 16 at least at selected sites in the state of pre-tension in the direction of the flange surface 12.

The third variant execution is depicted in Fig.7 and 8. This support plate 10 made in accordance with figure 1. According to this flange surfaces 12 and 16 (as in the case of conventional brakes) are flat. However, there is a strip 47, the outer edges 48, 50 of which are located at a distance from the fastening bolts 36, 38, respectively, of the mounting holes 32, 34. The edges 48, 50 have the same function as the ledges 20, 22. In turn, when tightening bolted connections due to the stiffness of the strip 47 creates a bending moment, and the resulting elastic restoring force causes the flange surface 16 in a state of pre-tension to the flange surface 12. When the gasket 47 may of the criminal code is to advetise freely or fixed directly on the flange surface 12 of the caliper 10 and/or on the flange surface 16 of the actuator 14.

Instead of connecting through geometric closures or closure material bolts 36, 38 due to the elastic restoring force when mounting can also be protected against rotation only by simple friction closures.

The features of the invention disclosed in the above description, the claims and the drawings may be essential to implementing the invention in its various embodiments perform both separately and in any combination.

1. Disc brake with caliper, in particular, for vehicles industrial, containing the caliper (10)having a first flange surface (12) with the first functional hole (24), the Executive unit (14)having a second flange surface (16) with the second functional hole (30), when assembled coaxially with the first functional hole, and the mounting device (36, 38) for fastening of the actuating devices on the caliper, and functional holes (24, 30) are used to connect actuator with a clamping device, characterized in that the mounting device is designed so that the second flange surface located between the second functional hole and a mounting device region has been bent or deformed against the elastic barrel is ivalsa force, and healing power led second flange surface at least at selected sites in the state of pre-tension in the direction of the first flange surface.

2. Brake according to claim 1, characterized in that the fastening device (36, 38) has a screw.

3. Brake according to claim 1, characterized in that the fastening device is a bolt with a nut.

4. Brake according to claim 2, characterized in that the fastening device is a bolt with a nut.

5. Brake according to claim 1, characterized by two fastening devices (36, 38), located on the same line with the first (24) and/or the second functional hole (30) and symmetrically with respect to it/them.

6. Brake according to claim 1, characterized by an intermediate device located between the caliper (10) and execution unit (14) and having a third flange surface.

7. Brake according to one of claims 1 to 6, characterized in that the first, second and/or third flange surface (12, 16) between the mounting unit (36, 38) and functional holes (24, 30) is/are not flat.

8. Brake according to claim 7, characterized in that the first, second and/or third flange surface (12, 16) is/are between the mounting unit (36, 38) and functional holes (24. 30) the ledge (20, 22).

9. Brake according to claim 1, characterized gasket (47) between two adjacent flange surfaces (12, 16), passing between the functional holes (24, 30) and the mounting device (36, 38), but at a distance (A) from the mounting device.

10. Brake according to claim 1, characterized by a sealing device (42) for sealing the first and/or second functional holes (24, 30).

11. Brake according to claim 1, characterized by two or more fastening devices (36, 38).

12. Brake according to claim 11, characterized in that the second functional hole (30) is located in the middle between the two fixing devices (36, 38).

13. Brake according to claim 1, characterized in that the actuator (14) is located in the axial or radial position relative to the brake disk.

14. Brake according to claim 1, characterized in that at least part (18) of the Executive device (14), which in the assembled state is bent against the elastic restoring force is produced by the method of deep drawing part of the steel sheet.

15. The brake caliper according to one of claims 1 to 14, characterized in that the first flange surface (12) between the mounting unit (36, 38) and functional holes (24, 30) is not flat.

16. The Executive unit of the brake according to one of claims 1 to 14, characterized in that the second flange surface (16) of the fastening device (36, 38) and functional holes (24, 30) is not flat.



 

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