CN116771824A - Friction disk and hub assembly and method for mounting friction disk and hub assembly - Google Patents

Abstract

The application discloses a friction disc and disc hub assembly and an installation method of the friction disc and disc hub assembly, wherein the friction disc comprises a friction ring and at least one protruding part protruding from the inner circumference of the friction ring, the disc hub comprises a ring body sleeved in the friction ring, a first lug and a second lug protruding from the outer circumference of the ring body, the first lug and the second lug are arranged at intervals in the axial direction of the ring body, the protruding part is arranged between the first lug and the second lug, a slot is further concavely arranged on one side of the friction disc, which is close to the first lug, the friction disc and disc hub assembly further comprises a connecting piece and an elastic component, the connecting piece comprises a first connecting part arranged in the slot and a second connecting part for connecting the first lug and the first connecting part, and the elastic component is arranged between the second lug and the protruding part and abuts against two side surfaces, which are close to each other, between the second lug and the protruding part. Compared with the prior art that bolts are used for connecting the hub and the friction disc, the friction disc is more firmly connected with the hub.

Description

Friction disk and hub assembly and method for mounting friction disk and hub assembly

Technical Field

The application relates to the field of braking equipment, in particular to a friction disc and disc hub assembly and a mounting method of the friction disc and disc hub assembly.

Background

In the existing vehicle braking system, a friction disc is connected to an axle through a disc hub, when braking is needed, a brake caliper is used for clamping the friction disc to brake, the friction disc and the disc hub are connected specifically through bolts and nuts, but due to the fact that vibration generated during braking and friction disc are affected by factors such as heating expansion after friction, the connection between the bolts and the nuts is loose or broken, and connection failure between the friction disc and the disc hub is caused.

Disclosure of Invention

The present application is directed to a friction disc and hub assembly and a method of installing the friction disc and hub assembly that do not use bolts to connect to overcome the above-mentioned problems.

In order to achieve the above-mentioned purpose, the present application provides a friction disc and hub assembly, including a friction ring, at least one protruding portion protruding from the inner circumference of the friction ring, and a hub including a ring body portion sleeved in the friction ring, a first lug protruding from the outer circumference of the ring body portion, and a second lug, wherein the first lug and the second lug are disposed at intervals in an axial direction of the ring body portion, the protruding portion is disposed between the first lug and the second lug, and a slot is further recessed on a side thereof adjacent to the first lug, the friction disc and hub assembly further includes a connecting member and an elastic assembly, the connecting member includes a first connecting portion disposed in the slot, a second connecting portion connecting the first lug and the first connecting portion, and the elastic assembly is disposed between the second lug and the protruding portion, and abuts against two adjacent sides between the second lug and the protruding portion.

As a further improvement of the application, the first lug is provided with a first opening, and the second connecting part is at least partially inserted into the first opening.

As a further improvement of the application, the elastic component comprises a fixing piece and at least one belleville spring, wherein the fixing piece comprises a first fixing part attached to one side of the second lug and a second fixing part extending from the first fixing part towards the protruding part, and the belleville spring is sleeved on the periphery of the second fixing part.

As a further improvement of the application, the fixing piece further comprises a positioning part formed by protruding from one side of the first fixing part, which is away from the belleville spring, and the second lug is provided with a second opening for inserting the positioning part.

As a further improvement of the present application, the elastic assembly further includes a washer disposed opposite to the first fixing portion in an axial direction of the ring body and fitted to one side of the boss portion, the belleville spring is disposed between the washer and the first fixing portion, and the second fixing portion is partially inserted into the washer.

As a further development of the application, two disk springs are provided, and two disk springs are arranged opposite each other.

As a further improvement of the present application, the slot has the same width as the first connecting portion, both side surfaces in the slot width direction and both side surfaces in the first connecting portion width direction are arranged in a plane, and the length of the slot is greater than the width thereof.

As a further improvement of the present application, the protruding parts are provided with at least three in the circumferential direction of the friction ring, the number of each of the first lugs, the second lugs and the elastic members is equal to the number of the protruding parts, and the number of the connecting pieces is equal to or less than the number of the protruding parts.

As a further improvement of the application, the ring body, the first lug and the second lug are integrally formed.

The application also provides a mounting method of the friction disc and hub assembly, which comprises the following steps:

connecting the second connection portion of the connection member with the first lug of the hub;

sleeving the disk hub in the friction ring, and enabling the protruding part to be positioned between the first lug and the second lug and the first connecting part to be positioned in the slot;

an elastic member is interposed between the second lug and the boss.

The application has the beneficial effects that:

the application provides a friction disc and hub assembly and a mounting method of the friction disc and hub assembly, wherein a protruding part is arranged between a first lug and a second lug, and a connecting piece and an elastic component are matched to realize connection of the friction disc and the hub.

Drawings

FIG. 1 is a schematic illustration of a friction disc and hub assembly provided by the present application;

FIG. 2 is a schematic view of the structure of a friction disc in a friction disc and hub assembly provided by the present application;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A;

FIG. 4 is a schematic view of the structure of a hub in the friction disc and hub assembly provided by the present application;

FIG. 5 is a schematic elevational view of the friction disc and hub assembly of the present application, with the lower half of the schematic elevational view omitted;

FIG. 6 is a schematic cross-sectional view of the friction disc and hub assembly provided by the present application taken along line B-B in FIG. 5;

FIG. 7 is a schematic view of the connector of FIG. 6;

FIG. 8 is a schematic view of the spring assembly of FIG. 6 with the belleville springs in an uncompressed state;

fig. 9 is a schematic view of the spring assembly of fig. 6, wherein the belleville springs are in a compressed state.

In the figure:

100. a friction disc and hub assembly;

10. a friction plate; 11. a friction ring; 111. a central bore; 12. a boss; 13. slotting;

20. a hub; 21. a ring body; 22. a first lug; 221. a first opening; 23. a second lug; 231. a second opening;

30. a connecting piece; 31. a first connection portion; 32. a second connecting portion;

40. an elastic component; 41. a fixing member; 411. a first fixing portion; 412. a second fixing portion; 413. a positioning part; 42. a belleville spring; 43. and a gasket.

Detailed Description

The present application will be described in detail below with reference to embodiments shown in the drawings. The embodiments are not intended to limit the application, but all mechanical, method, or functional modifications of the application based on the embodiments are within the scope of the application.

Terms such as "upper," "lower," "left," "right," "front," "rear," and the like as used herein to refer to a spatial relative position are used for ease of description to describe one feature's relationship to another feature as illustrated in the figures. It will be appreciated that the term spatially relative position is intended to encompass different orientations than those depicted in the figures, depending on the product placement location, and should not be construed as limiting the claims. In addition, the term "horizontal" as used herein is not entirely equivalent to being oriented perpendicular to gravity, allowing for some degree of tilt.

As shown in fig. 1 to 7, an embodiment of the present application provides a friction disc and hub assembly 100, which can be used in a brake system of a vehicle, the friction disc and hub assembly 100 includes a friction disc 10 and a hub 20, wherein the friction disc 10 includes a friction ring 11, at least one boss 12 protruding from an inner circumference of the friction ring 11, the hub 20 includes a ring body 21, a first lug 22 and a second lug 23 protruding from an outer circumference of the ring body 21, the ring body 21 is sleeved in the friction ring 11, a central hole 111 is provided at a center of the friction ring 11, an inner circumference of the friction ring 11 is a circumferential wall of the central hole 111, the first lug 22 and the second lug 23 are disposed at intervals in an axial direction of the ring body 21, the boss 12 is disposed between the first lug 22 and the second lug 23, and one side thereof adjacent to the first lug 22 is further concavely provided with a groove 13, the friction disc and hub assembly 100 further includes a connecting member 30 and an elastic member 40, the connecting the friction disc 10 and the hub 20, such that the friction disc 10 and the hub 20 can rotate around the first lug 22 and the boss 31, the boss 31 can be connected to the boss 12 in an axial direction, and the boss member is disposed between the first lug 22 and the boss 12 and the second lug member 32. The side of the boss 12 facing away from the resilient assembly 40 may be disposed in abutment with the first lug 22.

When the friction disc and hub assembly 100 is applied to a vehicle braking system, the ring body 21 is sleeved on an axle and fixed relative to the axle, and when the vehicle needs to be braked, the two sides of the friction ring 11 are clamped by using the brake calipers, and the axle is slowed down by friction force, so that the braking of the vehicle is completed. In this embodiment, the first lug 22 is provided with a first opening 221, and the second connecting portion 32 is at least partially inserted into the first opening 221 to connect with the first lug 22, specifically, the connecting member 30 is a torque pin, and the first connecting portion 31 and the second connecting portion 32 are integrally formed, so that the torque pin can bear the torque between the hub 20 and the friction disc 10 when the vehicle brakes.

In this embodiment, the ring body 21, the first lug 22 and the second lug 23 are integrally formed, that is, the three are made of the same material with a part of the volume removed, so that the hub 20 has sufficient strength. The width of the slot 13 is the same as that of the first connecting portion 31, the first connecting portion 31 is arranged in the slot 13, two lateral surfaces in the width direction of the first connecting portion 31 are respectively contacted with two lateral surfaces in the width direction of the slot 13, and two lateral surfaces in the width direction of the slot 13 and two lateral surfaces in the width direction of the first connecting portion 31 are arranged in a plane mode, so that enough contact area exists between the first connecting portion 31 and the slot 13.

Further, the length of the slot 13 is greater than the width thereof, and when the friction disk 10 expands in the radial direction thereof by heat, the first connection portion 31 slides along the length direction of the slot 13 accordingly, so that the positional accuracy between the hub 20 and the friction disk 10 can be ensured. The length direction of the slot 13 is the radial direction of the friction disk 10. In a specific arrangement, the first connecting portion 31 may have a square or hexagonal shape.

With continued reference to fig. 8 and 9, the elastic assembly 40 includes a fixing member 41 and at least one belleville spring 42, the fixing portion includes a first fixing portion 411 attached to one side of the second lug 23, and a second fixing portion 412 extending from the first fixing portion 411 toward the boss 12, the outer diameter of the first fixing portion 411 is larger than the outer diameter of the second fixing portion 412, and the belleville spring 42 is sleeved on the outer periphery of the second fixing portion 412, so that the belleville spring 42 is defined between the second lug 23 and the boss 12.

In the above case, the belleville spring 42 adjacent to the boss 12 is directly attached to one side of the boss 12, and in order to avoid friction between the belleville spring 42 and the boss 12, the elastic assembly 40 may further include a washer 43, the washer 43 and the first fixing portion 411 are disposed opposite to each other in the axial direction of the ring body 21 and attached to one side of the boss 12, the belleville spring 42 is disposed between the washer 43 and the first fixing portion 411, and a tail portion of the second fixing portion 412 is inserted into the washer 43 to define a position of the washer 43.

Further, the fixing member 41 further includes a positioning portion 413 protruding from a side of the first fixing portion 411 away from the belleville spring 42, the second lug 23 is provided with a second opening 231 into which the positioning portion 413 is inserted, and the positioning portion 413 is inserted into the second opening 231, so as to define a position of the entire elastic assembly 40 between the second lug 23 and the boss 12.

Specifically, two belleville springs 42 in the elastic assembly 40 are provided, and the two belleville springs 42 are disposed opposite to each other, so that the combination of the two can generate larger elastic force and telescopic distance. As shown in fig. 8 and 9, the length of the elastic member 40 is changed when the belleville springs 42 are relaxed and compressed, so that the elastic member 40 can be disposed between the second lug 23 and the boss 12 and abut against the two sides of the second lug 23 that are adjacent to each other. When the friction disk 10 expands due to heat from friction with the caliper, the expansion in the axial direction further contracts the belleville spring 42, and the expansion in the radial direction generates friction between the boss 12 and the washer 43, but the elastic member 40 remains in a predetermined position due to the cooperation of the positioning portion 413 and the second opening 231.

In this embodiment, at least three protrusions 12 are disposed along the circumferential direction of the friction ring 11, and the number of the first lugs 22, the second lugs 23, the connecting members 30 and the elastic members 40 is equal to the number of the protrusions 12, so that the hub 20 and the friction disc 10 are connected at a plurality of different positions, and sufficient connection strength between the two is ensured. Of course, in the case where the strength of the connection member 30 is satisfied, the number of the connection members 30 may be smaller than the number of the bosses 12, that is, between a part of the bosses 12 and the first lugs 22, the connection members 30 may not be provided.

The application also provides an installation method of the friction disc and hub assembly 100, which comprises the following steps:

connecting the second connection portion 32 of the connection member 30 with the first lug 22 of the hub 20;

the hub 20 is sleeved in the friction ring 11, the boss 12 is positioned between the first lug 22 and the second lug 23, and the first connecting part 31 is positioned in the slot 13;

an elastic member 40 is interposed between the second lug 23 and the boss 12.

In the above steps, when the hub 20 is fitted into the friction ring 11, the first lug 22 and the second lug 23 of the hub 20 are positioned between the adjacent two bosses 12, and then the hub 20 is rotated so that the bosses 12 are positioned between the first lug 22 and the second lug 23. The distance between the second lug 23 and the connecting piece 30 is greater than the thickness of the boss 12. The boss 12 is movable between the first lug 22 and the second lug 23, so that the first connecting portion 31 enters the slot 13. After the first connecting portion 31 enters the slot 13, the elastic member 40 is inserted between the boss 12 and the second lug 23, and the positioning portion 413 is inserted into the second opening 231.

When disassembly is required, the shaft is inserted into the second opening 231 to press the positioning portion 413 to retract the elastic member 40, so that the elastic member 40 is taken out from between the boss 12 and the second lug 23, and then the hub 20 and the friction disc 10 can be easily separated.

It should be understood that although the present disclosure describes embodiments in terms of examples, not every embodiment is provided with a single embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art.

The above embodiments are only for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present application.

Claims (10)

1. The utility model provides a friction disc and dish hub assembly, its characterized in that, includes friction disc and dish hub, the friction disc includes friction ring, at least one protruding bellying of establishing the formation from friction ring inner circumference, the dish hub is including the cover locate in the intra-annular circle body, from the protruding first lug, the second lug of establishing the formation of circle body periphery, first lug and second lug interval setting in the axial direction of circle body, the bellying is located between first lug and the second lug to its one side that is close to first lug still concave to be equipped with the fluting, friction disc and dish hub assembly still includes connecting piece and elastic component, the connecting piece is including locating first connecting portion in the fluting, the second connecting portion of connecting first lug and first connecting portion, elastic component locates between second lug and the bellying to support the both sides face that is close to between second lug and the bellying.

2. The friction disc and hub assembly of claim 1, wherein the first lug defines a first opening therein, and the second connection portion is at least partially inserted into the first opening.

3. The friction disc and hub assembly of claim 1, wherein the resilient member comprises a retainer and at least one belleville spring, the retainer comprising a first fixed portion attached to one side of the second lug, a second fixed portion extending from the first fixed portion toward the boss, the belleville spring being sleeved around the second fixed portion.

4. A friction disc and hub assembly according to claim 3, wherein said securing member further comprises a locating portion formed by projecting from a side of the first securing portion facing away from the belleville spring, and said second lug is provided with a second opening into which said locating portion is inserted.

5. The friction disc and hub assembly according to claim 4, wherein the elastic member further comprises a washer disposed opposite the first fixing portion in an axial direction of the ring body and fitted to one side of the boss portion, the belleville spring is disposed between the washer and the first fixing portion, and the second fixing portion is partially inserted into the washer.

6. A friction disc and hub assembly according to any one of claims 3 to 5, wherein two of said belleville springs are provided and two of said belleville springs are provided opposite each other.

7. The friction disc and hub assembly of claim 1, wherein the slot is the same width as the first connection portion, and both sides of the slot in the width direction are planar with both sides of the first connection portion in the width direction, the length of the slot is greater than the width thereof, and the length direction of the slot is the radial direction of the friction disc.

8. The friction disk and hub assembly according to claim 1, wherein said protrusions are provided with at least three in a circumferential direction of said friction ring, and each of said first lugs, second lugs and elastic members is equal to or less than the number of protrusions.

9. The friction disk and hub assembly according to claim 1, wherein said ring body, first lug, and second lug are integrally formed.

10. A method of installing a friction disc and hub assembly as claimed in any one of claims 1 to 9 comprising the steps of:

connecting the second connection portion of the connection member with the first lug of the hub;

sleeving the disk hub in the friction ring, and enabling the protruding part to be positioned between the first lug and the second lug and the first connecting part to be positioned in the slot;

an elastic member is interposed between the second lug and the boss.