Modular disk brake

FIELD: mechanical engineering, namely, disk brakes, having floating or sliding support.

SUBSTANCE: disk brake contains body for positioning braking mechanism on it and support, detachably connected to body. Disk brake is formed of various modules. Body acts as supporting means for fastening other modules. One of modules is formed by support together with at least three guiding fingers. Lid of braking mechanism is strongly connected to body. Seal is positioned and compressed during assembly between lid and body.

EFFECT: increased technical characteristics of disk brake.

18 cl, 7 dwg

 

The technical field

The present invention relates to a disc brake and, in particular, to a disk brake having a floating or sliding caliper. The brake is designed for vehicles heavy vehicles, however skilled in the art will understand that the brake corresponding to the present invention can be applied in a vehicle of any type.

Used in this description the expression "rear" and "front"as well as expressions with the same value belong to the normal position of the brakes. Thus, "front" refers to the side facing the wheel of the vehicle, while the "rear" refers to the side facing the interior of the vehicle.

Prior art

The disk brake according to the prior art, typically made in the form of large modules, which leads to relatively heavy parts, which can be cumbersome to manufacture. Production calipers prior art often includes machine processing in a confined space, for which you must use specially designed tools. When assembling the brake mechanism is often inserted into the caliper with a tight fit. This means that the braking mechanism must be the varying degrees tilted and rotated, to enter into the desired space. However, as the mechanism and caliper are relatively heavy, so the Assembly personnel will be exposed to a large enough load. Large modules also have disadvantages relating to maintenance and repair.

The invention

In accordance with the present invention, the brake mechanism accommodated in the housing. The housing can be regarded as a reference tool for fixing brakes. The brake mechanism is placed in the space corps, which is open towards one side of the body. Thus, the inner part of the housing can be machined using standard tools. In addition, set the brake inside the case is relatively easy.

The caliper is rigidly and Rethimno attached to the body with the formation of disc brakes. The caliper is attached to the housing by suitable fastening means. The caliper can also be machined relatively simple way using standard tools. Preferably, the caliper has such a construction that allows to treat them as a single unit, both during Assembly and during transportation, storage, etc Caliper is mounted on the carriage is attached to the vehicle.

The housing and the brake caliper guides are sent PA is Izumi, allowing them to slip during braking, which is typical for disc brakes with floating or sliding caliper. In order to determine the exact direction and reduce the dynamic load on the caliper should be used at least three guide fingers. At least one guide pin must be located on the outer side of the disc. This location guide will be favorable regarding uniform wear of the brake pads. When assembling the guide pins can move in the radial direction with respect to the holes in the hull.

In addition, the repair provided the opportunity for caliper with pads, springs, pads, pad holders, wear indicator and guides to be mounted on a carriage that is attached to the vehicle. In this case, the routing tool will serve as a connection between the carriage and cross slide.

Brake in accordance with the present invention is formed from many individual blocks or modules, which are assembled with each other in a simple way. The modular design has many advantages related to the production, operation and after-sales service.

In the production of large advantages can construct a brake of some of the modules and thus have smaller units. There are advantages for casting, for example, the possibility of using the so-called automatic foundry equipment that provides economic advantages. Machine processing is preferred in smaller chunks that can be more easily obtained various surfaces and closed volumes. Smaller blocks give less weight to the Assembly unit compared to the unit-cast support and lead to the simplification of machining and Assembly. Smaller blocks/modules provide advantages in operation and after-sales service, so as defective part or parts can be replaced without affecting other modules brakes. Smaller blocks provide an opportunity to decentralize the installation of different modules, providing advantages in logistics due to the fact that the final Assembly can be done in a controlled way, for example, by the end customer.

The use of brake formed from modules, gives the advantage that the brake is relatively easily can be adapted to the space available in a particular vehicle. Thus, there is the ability to simply modify the item requiring adaptation, and not to change, for example, fully support that costs as funds and time. It is also possible to produce different parts of different materials. One the or more parts can be produced, for example, from aluminum to reduce weight. The housing and the caliper can be cast, but they can also be made in any suitable way.

As a result, the brake constructed in modular form in accordance with the present invention is flexible in terms of production, type of materials used, maintenance, etc.

In view of the foregoing, one objective of the present invention was the creation of a brake, which is relatively easy to manufacture, assemble, maintain, repair, store and transport.

This goal is achieved by a disc brake for a vehicle, comprising a housing, and this housing accommodates the brake mechanism. Caliper Rethimno attached to the case. Brake formed from different modules, and the case is a reference tool for attaching other modules.

Other objectives and advantages of the present invention will be apparent to a person skilled in the art upon reading the following detailed description of preferred embodiments of the invention.

Brief description of drawings

The invention will be further described in more detail with reference to the accompanying drawings. In the drawings:

figure 1 represents an exploded view of the brake in accordance with the first embodiment of the present invention;

<> figure 2 - exploded view of the brake of figure 1 from the opposite side;

figure 3 is a view in transverse section of part of the brake of figure 1 and 2;

figure 4 is an enlarged portion of the part in figure 3;

5 is a exploded view of the brake in accordance with the second embodiment of the present invention;

6 is a view in isometric of the assembled brake on figure 5;

7 is a partially exploded view in isometric brake parts on figure 5 and 6.

Detailed description of preferred embodiments of the invention

The brake corresponding to the first embodiment of the invention, includes a housing 1, which is attached to the support plate 2 by means of one or more of the bolts 3. In the example shown, six bolts 3, but to a person skilled in the art will understand that the number of bolts may vary depending on available space, expected loads, etc. the Housing 1 can be considered as the rear part, and the caliper 2 - as the front. In practice case 1 is the base part for mounting other parts or brake module.

The housing 1 accommodates the brake mechanism. The brake mechanism itself can have many different characteristics, but because it is not directly part of the present invention, it will not be here described in detail. The housing 1 has a connection the additional surface 15, to which is directly or indirectly attached to the brake actuator (not shown). The brake actuator is a pneumatic cylinder. The brake actuator acts on the lever 16 of the brake mechanism. Move the brake lever 16 is transmitted to the plate 13, acting on the pad holders or such part (not shown).

The brake mechanism is installed in the housing 1 as a single unit. The cover 18 of the mechanism attached to the housing 1 by means of fixing means. In the shown embodiment of the invention the fastening means are screws, but to a person skilled in the art will understand that there may be any fastening means providing a sturdy mount. To protect the brake mechanism onthe contact surface between the housing 1 and the cover mechanism installed seal 17. The seal 17 is placed in the groove of a given shape, located or on the cover 18, or on the housing 1, or partly on both of them. The seal 17 is pre-strained due to the fact that the seal 17 is made of elastic material and the outer dimensions of the seal 17 exceed the internal dimensions of the groove. As the lid 17 is firmly attached to the body by means of fixing means, the seal 17 is in a compressed state. When possible shift between the cover 18 and to what cusom 1 during braking the seal 17 will open and block all the resulting gaps. The seal 17 prevents the ingress of dirt and water into the housing 1, damaging the brake mechanism.

In the absence of compressed seal 17 dirt and water could penetrate, especially in heavy duty brake operation when using the Parking brake. In addition, the brake mechanism is sealed between the cover and the adjusting screws by means of bellows. The bellows is protected from heat and exposure through protective spring which may be made of stainless material.

Thus, after installation of the brake mechanism in the housing 1, the brake mechanism and the housing 1 form a separate unit or module. Therefore, during maintenance, you can replace the module with a new module, to reduce the downtime of the vehicle. Then the brake mechanism of the old module can be repaired, or it may take maintenance in place, or it can be sent to the specialist, for example the manufacturer.

In the housing 1 has through holes 4 for the introduction of the 3 bolts used to attach the support plate 2 to the housing 1. In addition, in the casing through the openings to accommodate the adjusting means and the mounting arm. Through the doorway to the mounting arm sealed by means of a radial seal, preventing the dropping of dirt and water into the Bay, in which you installed the brake mechanism. Mounting arm and the adjusting means are standard parts of the brake mechanism and will not be described here in detail.

The adjusting means includes a controller 9. The controller 9 is essential for the functioning of the brakes. The controller 9 may be mechanical, electrical, magnetic or combined action. The controller 9 is placed in the extension12. The extension 12 is accessible from the rear of the housing 1, which implies the possibility of replacing the regulator 9 without disassembling the brake.

To protect the brake mechanism from dirt, water and the like installed caps 10, 11, closing the openings, in which are placed the adjusting means and mounting arm, respectively. The caps 10, 11 made of elastic or metal material. In the shown embodiment of the invention, the cap 10 covering the adjusting means attached to the housing by screws. Thus, if you want to replace the controller 9 first removed the cap 10 after loosening the screws, and then the controller 9 may be removed and replaced by a new regulator 9. Further, the cap 10 is again attached to the body 1 by means of screws. The housing 1 also has openings 8, including guide pins 6 mounted on the protrusions 14 soup is ORT 2. Caliper 2 contains two additional guides of the finger 7, placed in the carriage 21. Thus, the caliper 2 is connected to the carriage 21 by means of two additional guide pin 7. The purpose of the guide pin 6, 7 is to allow the carriage 2 together with the body 1 to slide under braking, which is well known from the prior art. When installing the caliper 2 on the housing 1 guide pins 6 can be moved in the radial direction with respect to the holes 8 of the housing 1.

In accordance with the present invention should be used three or more guides of the finger 6, 7. In the shown embodiment of the invention used four guide fingers 6, 7. Designs with three or more guide fingers 6, 7 provide stiffness and easing of pressure on the caliper. The effect of the weaker load mainly manifested bolt 3, but also for other parts of the brake, which will experience a greater load when the brake operates. This design will provide a continuous transfer of force from the back side of the outer brake pad on the caliper 2 through the carriage and on to the inner guide pins 6 connected to the housing 1. Thanks at least three guide fingers 6, 7, the brake will have advantages in precise directional movement of the caliper that is especi uniform wear of the brake pads.

The guide pins 6, 7 can be made of stainless material, to prevent them from sticking caused by rust, especially in long periods of stationary or infrequentuse of the brake, which can cause poor brake operates and uneven brake pad wear.

In normal mode, the caliper 2 should cover one or more brake discs and brake pads (not shown). Caliper 2 contains the main or front part of the side opposite to the housing 1. The two tabs 14 are from the main part of the carriage 2 in the direction of the housing 1. Jumper 19 passes between the two protrusions 14 of the caliper. In the caliper 2 is formed an opening between the main part, the protrusions 14 and the crosspiece 19. The spacer 20 is removable attached to the caliper 2. The spacer 20 is held above the opening of the support plate 2 and supports the holders of brake pads (not shown) when braking. In addition, if you remove the spacer 20, you can replace your worn out brake pads, just by lifting them through the opening in the caliper 2. In the caliper 2 threaded holes 5, which includes the 3 bolts that are used for durable attachment of the support plate 2 to the housing 1.

The caliper 2 is to be installed on the carriage 21 that is attached to the vehicle. Caliper 2 will slide on the carriage 21 when braking. The carriage 21 forms the E. the e is one unit or module. When servicing, repairs, etc. provided the opportunity for a module or unit, formed from the support plate 2 together with pads, springs, pads, pad holders, the wear indicator and the guide means, to be mounted on the carriage 21, while the module formed by the housing 1, is removed by unscrewing the bolts 3. The second variant implementation of the present invention shown in figure 5-7. According to this variant embodiment of the invention the support plate 32 is also attached to the housing 31 by means of bolts 33, in this case three bolts 33. The brake according to the second variant embodiment of the invention in many respects similar to the brake according to the first variant of the invention, and identical parts will not be described in detail again.

The housing 31 accommodates the brake mechanism in the space is open toward the front side of the housing 31. As in the first embodiment of the invention, the drive brakes are directly or indirectly connected with the brake mechanism through the connecting surface 45. Drive brake acts on the lever 46 of the brake mechanism. Move the brake lever 46 is transmitted by the mechanism on the plate 43, affecting the holders 47 brake pads or similar parts.

The brake mechanism is installed in the form e is any unit in the housing 31. The cover 48 of the brake mechanism attached to the housing 31 by means of the fastening means. In the same manner as in the above example, the compressed seal is located in the groove of predetermined shape formed on the lid 48 and/or on the housing 31.

According to this second variant of the invention, the housing 31 has one or more through holes or openings, which include bolts 33, the guide pins 36, the adjusting means and mounting arm, respectively. The controller 39 of the adjusting means is placed in the extension 42 on the rear side of the housing 31. To protect the brake mechanism provided by the caps 40, 41, closing the outlets of the holes, in which are located the adjusting means and mounting arm, respectively.

The housing 31 has openings 38 for the introduction of the two guide pin 36 located on the support plate 32. Two additional guide fingers 37 are attached to the opposite side of the support plate 32 for engagement with the carriage 51. As stated above, the purpose of the guide fingers 36, 37 is to allow the support plate 32 to slide together with the casing 31 when braking. The support plate 32 will slide on the carriage 51. To ensure precise directional movement must be installed at least three guide fingers 36, 37. At meredin of the guide pin 37 should be located on the outer side of the disc. When assembling the guide pins 36 can move in the radial direction relative to the holes 38 in the housing 31.

During Assembly, one end of the spacer 50 is inserted into the opening in the housing 31, while the other end of the spacer 50 is attached to the support plate 32 by means of suitable fastening means. The purpose of the spacers 50 is to promote retention in the place holders 47 of the brake pads during braking.

The support plate 32 has a main or front part and the protrusions 44, passing toward the housing 31. The housing 31 is attached to the ends of the projections 44. The support plate 32 of this variant embodiment of the invention has no jumpers. An aperture similar to the aperture in the support plate 2 of the first variant of the invention, formed the main part of the carriage 32, the protrusions 44 and the front side of the housing 31.

1. Disc brake for a vehicle, comprising a housing (1, 31) to accommodate the brake and caliper (2, 32), Rethimno attached to the housing (1, 31), characterized in that the brake is formed from different modules, the housing (1, 31) is a reference tool for attaching other modules, and one of the modules is formed by a support plate (2, 32) together with at least three guide fingers(6, 7, 36, 37), the cover (18, 48) brake firmly attached to the housing (1, 31), and seal (17) is located and compressed is in the Assembly between the cover (18, 48) and the housing (1, 31).

2. Disc brake according to claim 1, wherein one module is formed by a housing (1, 31)in which the brake mechanism when the brake mechanism accommodated in the housing (1,31) as a single unit.

3. Disc brake according to claim 1 or 2, characterized in that the module formed by the caliper (2, 32) and at least three guide fingers(6, 7, 36, 37), also includes holders (47) brake pads and brake wear indicators.

4. Disc brake according to claim 3, characterized in that one module is formed by a carriage (21, 51)attached to the vehicle, the caliper (2, 32) is supported on the carriage (21, 51) and connected to the carriage (21, 51) via at least two guide fingers (7, 37).

5. Disc brake according to claim 1 or 2, characterized in that the support (2,32) attached to the housing (1, 31) by means of fixing means (3, 33)in the housing (1, 31) is made through holes (4) for insertion of the fastening means (3, 33).

6. Disc brake according to claim 1 or 2, characterized in that

the seal (17) is located in the groove on the cover (18, 48) and/or on the housing (1,

31).

7. Disc brake according to claim 1 or 2, characterized in that at least one of the guide pin (6, 36) inserted into the hole (8, 38) of the housing (1, 31) and at least one guide pin (6, 36) is arranged to move in the radial e.g. is the pressure relative to the openings (8, 38) of the housing (1, 31) in the Assembly.

8. Disc brake according to claim 1 or 2, characterized in that the adjusting means and the adjusting lever is placed in the through openings of the housing (1, 31), while the outputs of the openings are closed by caps(10, 11, 40, 41), and the controller (9, 39) adjusting means placed in the expansion (12, 42) on the side of the housing (1, 31)facing the interior of the vehicle.

9. Disc brake according to claim 8, characterized in that the controller (9, 39) is arranged to insert and retrieve from the outside, and a controller (9, 39) is a mechanical, electrical, magnetic, or combined.

10. Disc brake of claim 8, wherein the two caps (10, 11, 40, 41) made of elastic material or of metal.

11. Disc brake according to claim 1 or 2, characterized in that the guide pins (6, 7, 36, 37) of a stainless material.

12. Disc brake of claim 8, wherein the radial seal is located in the opening, in which the installation handle.

13. Disc brake according to claim 1 or 2, characterized in that the support (2, 32) contains two tabs (14, 44), passing from the front of the caliper (2, 32) toward the housing (1, 31), while the outer ends of the protrusions (14, 44) against the housing (1, 31) after Assembly.

14. Disc brake according to item 13, characterized in that the end surfaces of each speaker is a (14, 44) threaded holes (5) for insertion of the fastening means (3, 33)used to attach the caliper (2, 32) to the housing (1, 31).

15. Disc brake according to item 13, characterized in that the crosspiece (19) is installed between the ends of the projections (4) caliper (2).

16. Disc brake according to 15, characterized in that the spacer (20) Rethimno fixed between the crosspiece (19) and the main part of the caliper (2), spacer (20) crosses the aperture formed in the caliper.

17. Disc brake according to claim 1 or 2, characterized in that the spacer (50) Rethimno attached to the housing (31) and to the main part of the caliper (32), the spacer (50) intersects the aperture formed in the support plate (32).

18. Disc brake according to claim 1 or 2, characterized in that one or more parts made from aluminium.



 

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