KR20150017450A - Joint unit for brake disc - Google Patents

Joint unit for brake disc Download PDF

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Publication number
KR20150017450A
KR20150017450A KR1020130093218A KR20130093218A KR20150017450A KR 20150017450 A KR20150017450 A KR 20150017450A KR 1020130093218 A KR1020130093218 A KR 1020130093218A KR 20130093218 A KR20130093218 A KR 20130093218A KR 20150017450 A KR20150017450 A KR 20150017450A
Authority
KR
South Korea
Prior art keywords
bush
hat part
washer
disk ring
hat
Prior art date
Application number
KR1020130093218A
Other languages
Korean (ko)
Inventor
이중희
심재훈
김기정
홍성종
이학인
Original Assignee
현대자동차주식회사
남양공업주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대자동차주식회사, 남양공업주식회사 filed Critical 현대자동차주식회사
Priority to KR1020130093218A priority Critical patent/KR20150017450A/en
Publication of KR20150017450A publication Critical patent/KR20150017450A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/12—Discs; Drums for disc brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/1304—Structure
    • F16D2065/1316—Structure radially segmented
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/1304—Structure
    • F16D2065/1328—Structure internal cavities, e.g. cooling channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/1304—Structure
    • F16D2065/1336—Structure integral part of vehicle wheel

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

Disclosed is a joint unit for a brake disk minimizing an assembling tolerance which occurs between components. According to an embodiment of the present invention, the joint unit for a brake disk joining a hat part on one side of a disk ring has a plurality of through-holes at a predetermined interval along the periphery of inner diameter part of the disk ring, and has a first bush penetration part along the periphery of outer diameter surface of the hat part which corresponds to the through-holes. The joint unit includes bushes which are inserted into the first bush penetration part and the through-holes, have flanges supported on the periphery surface of the first bush penetration part on one end thereof, and have a hollow part; and rivets rivet-joined by penetrating the hollow part of the bushes and assembling the disk ring with the bushes and the hat part.

Description

[0001] JOINT UNIT FOR BRAKE DISC [0002]

The present invention relates to a fastening unit for a brake disc, and more particularly, to a fastening unit for a brake disc that minimizes assembly tolerance and simplifies the assembling process when a disc ring and a hat part are fastened together.

BACKGROUND ART [0002] Generally, a braking device, which is a braking device of a vehicle, is an important device of a vehicle used for decelerating or stopping a running vehicle, and disk brakes and drum brakes, which are hydraulic brakes, are used.

In recent years, disc brakes have been used rather than drum brakes in order to improve the braking performance of the vehicle. These disc brakes are devices for braking the vehicle by bringing the brake pads into close contact with the disc ring.

Such a disk ring includes a different piece of material, namely an aluminum part, for fastening with the wheel, which is fastened to the disk ring through a separate fastening unit.

That is, the tightening unit includes a bush inserted into a groove formed in a circumference of a hat part, a guider sandwiched between the hat part and the bush, and a tensioner fastened to the disk ring by a fastening bolt together with the bush .

At this time, the bushes form flanges on both sides and support both side surfaces of the hat part through the guider in a state of being fitted in the grooves on the hat part. Both ends of the tensioner elastically support the guider, Fix the disk ring.

Here, the tensioner absorbs the different thermal expansion amounts of the hat part and the disk ring, and absorbs the shock to the axial disturbance.

However, in the conventional fastening unit, assembly tolerances may occur between the groove, the guider, and the bush as the guider is sandwiched between both sides of the groove formed in the hat part and the bushes are sandwiched between the both side guides. Which serves as a disadvantage of deteriorating the runout.

Such disadvantages also act as a source of vibration such as a steering wheel, a steering shaft, a steering wheel, and the like when the vehicle travels, which causes a problem of judder in the entire vehicle.

In addition, among the components constituting the fastening unit, particularly, the tensioner, the bush, and the guider having the special structure have a disadvantage that the manufacturing cost is increased and the manufacturing time is excessively required.

An embodiment of the present invention is intended to provide a fastening unit for a brake disk which minimizes assembly tolerance generated between parts when fastening a disk ring and a hat part.

It is another object of the present invention to provide a fastening unit for a brake disc that simplifies a manufacturing process by applying a riveting method when fastening a disc ring and a hat part.

In one or more embodiments of the present invention, a fastening unit for a brake disk for fastening a hat part to one surface of a disk ring, wherein a plurality of through holes are formed at regular intervals along the inner circumference of the disk ring, A first bush penetrating part is formed along the periphery of the hat part in correspondence with the hole and is fitted to the first bush penetrating part and the through hole and a flange supported at one end of the first bush penetrating part is supported on the periphery of the first bush penetrating part A bush having a hollow portion formed therein; And a rivet which is riveted through the hollow portion of the bush and includes a rivet for assembling the hat part and the disc ring together with the bush.

The bush has a flange formed at one end in the circumferential direction and inserted into the first bush penetration part of the hat part. And an extension portion extending from the other end of the head portion and inserted into the through hole of the disk ring.

Also, the rivet joint may be formed by riveting the end portion of the elliptical bush while expanding the end portion of the elliptical bush.

Between the flange of the bush and the hat part, an elastic member for providing an axial elastic force to the hat part may be interposed.

A first washer may be interposed between the outer surface of the hat part and the elastic member.

The elastic member may be a wave washer.

The first washer may include at least one or more flat washers and may be fitted to the bush.

A second washer may be interposed between the inner surface of the hat part and the outer surface of the disk ring corresponding thereto.

Also, the second washer may be composed of at least one flat washer and may be fitted in the bush.

Further, a spacer may be interposed between the inner surface of the hat part and the outer surface of the disk ring corresponding thereto.

The spacer may be formed in a ring shape along the inner circumference of the disk ring and a second bush penetrating portion corresponding to the first bush penetration portion of the hat part may be formed at the outer circumferential end thereof so as to fit the bush. .

In addition, the first bush penetration portion may be formed on a stepped step surface with respect to the outer surface of the hat part.

The embodiment of the present invention minimizes the assembly tolerance of the fastening unit for fastening the disk ring and the hat part to suppress the occurrence of run-out of the disk serving as the source of the vehicle, thereby suppressing the occurrence of judder can do.

In addition, in the prior art, the disk ring and the hat part are changed from the fastening method using the bolt-nut to the riveting method, thereby simplifying the manufacturing process, thereby reducing the manufacturing cost and improving the productivity.

In addition, the flange portion of the guider and the bush used in the prior art can be eliminated to reduce the weight and manufacturing cost.

In addition, since the guider and tensioner used in the prior art are replaced with wave washers and flat washers that are easy to manufacture, purchase and use, it is possible to reduce manufacturing costs and improve productivity.

1 is an installation state diagram of a brake disk fastening unit according to an embodiment of the present invention.
2 is an exploded perspective view of a fastening unit for a brake disk according to an embodiment of the present invention.
3 is an enlarged sectional view taken along the line AA in Fig.
FIG. 4 is an exploded perspective view of a fastening unit for a brake disc according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

It should be understood, however, that the present invention is not limited to the illustrated embodiments, and that various changes and modifications may be made without departing from the spirit and scope of the invention. .

In order to clearly illustrate the embodiments of the present invention, parts that are not related to the description are omitted. In the following description, the names of the components are denoted by first, second, etc., And is not necessarily limited to the order.

2 is an exploded perspective view of a fastening unit for a brake disc according to an embodiment of the present invention. FIG. 3 is an enlarged cross-sectional view taken along line AA of FIG. 1 to be.

1 to 3, a fastening unit 1 for a brake disk according to an embodiment of the present invention fastens a hat part 5 to one surface of a disk ring 3. As shown in FIG.

That is, the disk ring 3 has a plurality of through holes 7 formed at regular intervals along the inner circumference.

In the hat part 5, a first bush penetration part 9 is formed around the outer circumferential surface corresponding to the through-hole 7.

At this time, the first bush penetrating part 9 is formed on the stepped step surface 11 with respect to the outer surface 6 of the hat part 5, and as shown in the figure, Or may be formed in the same shape as a through hole (7) formed in the disc ring (3).

The fastening unit 1 according to the embodiment of the present invention includes a plurality of such disk rings 3 and a plurality of hat parts 5 and is fastened to the disk ring 3 through the through holes 7 and the first bush penetrating part 9. [ (5) is riveted to one side of the body (3).

At this time, the disk ring 3 may be a carbon-ceramic disk ring 3 made of a carbon-ceramic material, and the hat part 5 may be a hat part 5 made of an aluminum material.

Hereinafter, a more specific configuration of the above-described brake disk fastening unit 1 will be described.

The fastening unit (1) is composed of a bush (13) and a rivet (15).

That is, the bush is fitted in the first bush penetrating part 9 formed in the hat part 5 and the through hole 7 formed in the disk ring 3, and the first bush penetrating part 9, and a hollow portion 21 is formed in the inside thereof.

At this time, the bush 13 is divided into a head part 23 and an extension part 25.

The flange 19 is formed at one end of the head portion 23 in the circumferential direction and is inserted into the bush groove 9 of the hat part 5.

The extended portion 25 is extended to the other end of the head portion 23 and inserted into the through hole 7 of the disk ring 3. [

The rivet 15 penetrates through the hollow portion 21 of the bush 13 from the disk ring 3 side and is riveted at the side of the hat part 5 so that the rivet 15 is inserted into the disk ring 3) and the hat part (5).

At this time, the rivet 15 may be riveted from the disk part 3 side through the hollow part 21 of the bush 13 from the hat part 5 side, contrary to the above.

The rivet joint is riveted by expanding an end of the rivet joint with respect to the inclined surface 27 formed at one end of the bush 13.

At this time, the flange 19 of the bush 13 provides a fastening force for fastening the disk ring 3 to the hat part 5, and the head part 23 is fastened to the disk ring 3 side Thereby absorbing the applied impact load and preventing the disk ring 3 from being damaged from the impact.

On the other hand, an elastic member 17 may be interposed between the flange 19 of the bush 13 and the hat part 5.

The elastic member 17 is installed between the flange 19 of the bush 13 and the hat part 5 to provide an axial elastic force to the hat part 5.

At this time, the elastic member 17 may be composed of a wave washer having a function of preventing relaxation and a flat washer.

The elastic force of the elastic member 17 absorbs the different thermal expansion amounts of the disk ring 3 and the hat part 5 and absorbs the shock to the axial disturbance.

A first washer 29 is interposed between the upper peripheral surface 10 of the first bush penetrating portion 9 of the hat part 5 and the elastic member 17.

The first washer 29 is composed of at least one flat washer and is inserted into the bush 13 so as to prevent the elastic member 17 from directly contacting the hat part 5, Thereby preventing the surface of the hat part 5 from being damaged.

At this time, although the first washer 29 is shown as being constituted by one in the drawing, a plurality of the first washer 29 may be used if necessary.

On the other hand, a second washer 31 is interposed between the lower circumferential surface 12 of the first bush penetrating portion 9 of the hat part 5 and the upper surface of the disk ring 3 corresponding thereto.

The second washer 31 is composed of at least one flat washer and is inserted into the bush 13 to prevent direct contact between the disk ring 3 and the hat part 5, .

At the same time, the second washer 31 also blocks direct contact of the head portion 23 of the bush 13 with the disc ring 3.

At this time, although the second washer 31 is shown as being constituted by one as shown in the drawing, it is also possible to use a plurality of the second washer 31 as many as necessary.

FIG. 4 is an exploded perspective view of a fastening unit for a brake disc according to an embodiment of the present invention.

4, a spacer 31a may be interposed between the inner surface of the hat part 5 and the outer surface of the disk ring 3 corresponding thereto, instead of the second washer 31. As shown in FIG.

The spacer 31a is formed in a ring shape along the inner circumferential portion of the disk ring 3 and has a first bush penetrating portion 9a of the hat part 5, And the second bush penetrating portion 33 is formed.

In this case, the second bush penetrating portion 33 may be formed in the shape of a groove opened to one side as shown in the drawing, like the first bush penetrating portion 9, or may be formed in a through hole 7). ≪ / RTI >

The spacer 31a contacts the wider surface between the disk ring 3 and the hat part 5 and blocks the direct contact between the disk ring 3 and the hat part 5. [

According to the fastening unit 1 according to the embodiment of the present invention having the above-described configuration, the disk ring 3 and the hat part 5 are relatively easy to work through the bush 13, Tightly with a strong rivet joint.

At this time, the bush 13 is installed in the first bush penetration part 9 of the hat part 5 without a flange part fitted in a conventional groove, and the elastic member 17 made of a wave washer functions as a tensioner It is possible to eliminate a conventional tensioner having a special structure.

 Accordingly, it is possible to minimize the assembly tolerance caused by the conventional guider and the flange portion of the bushing, thereby suppressing the occurrence of the runout of the disk ring 3, which acts as a source of the vehicle, Can be suppressed.

Further, the disc ring 3 and the hat part 5 are fastened by riveting to simplify the manufacturing and assembling process of the fastening unit 1, compared with the conventional method in which the disc ring 3 and the hat part 5 are fastened by a bolt-nut.

In addition, the conventional guider and tensioner having a special structure can be replaced by a first washer 29, a second washer 31, and an elastic member 17, which is a flat washer having a general structure, Reduce costs.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And all changes to the scope that are deemed to be valid.

1: fastening unit 3: disk ring
5: Hat Part 6: Outside
7: through hole 9: first bush penetration
10: upper peripheral surface 11:
12: Lower circumference 13: Bush
15: Rivet 17: Elastic member
19: flange 21: hollow
23: head part 25: extension part
27: inclined surface 29: first washer
31: second washer 33: second bush penetration part

Claims (12)

A fastening unit for a brake disk for fastening a hat part to one surface of a disk ring,
A plurality of through holes are formed at regular intervals along the inner circumference of the disk ring, a first bush penetrating portion is formed along the circumference of the hat part corresponding to the through hole,
A bush which is fitted in the first bush penetration part and the through hole and has a flange formed at one end thereof and supported by the periphery of the first bush penetration part, And
A rivet which penetrates through the hollow portion of the bush and is riveted, together with the bush to assemble the hat part and the disk ring;
And a brake disc. The method according to claim 1,
The bush
A head portion having a flange formed at one end along the circumferential direction and inserted into the first bush penetration portion of the hat part; And
An extension extending from the other end of the head portion and inserted into the through hole of the disk ring;
Is formed of a fastening member for a brake disc. The method according to claim 1,
The rivet joint
Wherein the bush is formed by riveting the end portion of the bush by expanding the end portion of the bush with respect to an inclined surface formed at one end of the bush. The method according to claim 1,
Wherein an elastic member is provided between the flange of the bush and the hat part to provide an axial elastic force to the hat part. The method according to claim 1 or 4,
Wherein a first washer is interposed between an outer surface of the hat part and the elastic member. 5. The method of claim 4,
The elastic member
And a wave washer. 6. The method of claim 5,
The first washer
Wherein the at least one flat washer is fitted to the bush. The method according to claim 1,
Wherein a second washer is interposed between the inner surface of the hat part and the outer surface of the disk ring corresponding thereto. 9. The method of claim 8,
The second washer
Wherein the at least one flat washer is fitted to the bush. The method according to claim 1,
Wherein a spacer is interposed between the inner surface of the hat part and the outer surface of the disk ring corresponding thereto. 11. The method of claim 10,
The spacer
And a second bush penetrating portion corresponding to the first bush penetrating portion of the hat part is formed at an outer peripheral end thereof so as to sandwich the bush at the outer peripheral end thereof. For fastening unit. The method according to claim 1,
The first bush penetration portion
Wherein the stepped portion is formed on a stepped step surface with respect to the outer surface of the hat part.
KR1020130093218A 2013-08-06 2013-08-06 Joint unit for brake disc KR20150017450A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020130093218A KR20150017450A (en) 2013-08-06 2013-08-06 Joint unit for brake disc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020130093218A KR20150017450A (en) 2013-08-06 2013-08-06 Joint unit for brake disc

Publications (1)

Publication Number Publication Date
KR20150017450A true KR20150017450A (en) 2015-02-17

Family

ID=53046286

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020130093218A KR20150017450A (en) 2013-08-06 2013-08-06 Joint unit for brake disc

Country Status (1)

Country Link
KR (1) KR20150017450A (en)

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