KR101745006B1

KR101745006B1 - Brake disk

Info

Publication number: KR101745006B1
Application number: KR1020110102885A
Authority: KR
Inventors: 한재민; 이재영; 김성진; 김윤철
Original assignee: 현대자동차주식회사
Priority date: 2011-10-10
Filing date: 2011-10-10
Publication date: 2017-06-09
Also published as: KR20130038497A

Abstract

A friction part formed with a coupling hole at the center thereof and formed by bending the ring-shaped coupling flange so as to rise along the periphery of the coupling hole; A HAT part having a ring-shaped insert part inserted into a coupling flange of the friction part at a lower end portion and closely contacting an inner circumferential surface of the coupling flange; A circular clamp which is in close contact with an outer peripheral surface of the coupling flange; And a plurality of fins connecting and fixing the clamp, the coupling flange, and the insert in order.

Description

Brake Disc {BRAKE DISK}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a brake disk mounted on an automotive braking system.

BACKGROUND ART An automobile brake system is a device used to decelerate or stop a vehicle and maintain a parking state. A brake disk and a friction material are important parts for performing a braking action by converting kinetic energy of the vehicle into thermal energy by mutual frictional force .

An object of the present invention is to provide a safety fastening structure in which stress concentration is not generated in a coupling portion during braking by combining different types of brake disk elements utilizing a ring type strap.

At present, in order to assemble different kinds of brake disk elements, a hat (HAT) part 20 of a disk and a friction part 10, which is a friction plate, are fastened with a bolt, a bush, .

However, in the case of the conventional coupling structure, since the torque force generated by the frictional force during braking is concentrated on the coupling portion 30 of the bolt and the bush, the number of the bolt and the bush coupling portion 30 is increased . However, in the prior art, since the fastening portion 30 is in direct contact with the hat part 20, the stress concentration of the fastening part 30 is continuously generated, and the assembly process time is prolonged due to an increase in the number of parts, It is causing the rise.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as an admission that the prior art is known to those skilled in the art.

SUMMARY OF THE INVENTION The present invention has been proposed in order to solve such problems, and it is an object of the present invention to provide a safety fastening structure in which stress concentration of a coupling portion does not occur at the time of braking by combining different types of brake disk elements using ring- have.

According to an aspect of the present invention, there is provided a brake disk comprising: a friction part formed with a coupling hole at a center thereof and formed by bending a ring-shaped coupling flange upward along a periphery of the coupling hole; A HAT part having a ring-shaped insert part inserted into a coupling flange of the friction part at a lower end portion and closely contacting an inner circumferential surface of the coupling flange; A circular clamp which is in close contact with an outer peripheral surface of the coupling flange; And a plurality of fins connecting and fixing the clamp, the coupling flange, and the insert in order.

A first hole and a second hole may be formed in the coupling flange and the insertion portion, respectively, so that the pin is inserted.

The engagement flange and the insertion portion may be formed by bending perpendicularly from the friction part and the hat part.

The clamp includes a ribbon-shaped body bent in a circular shape, and an upper end portion and a lower end portion of the body, the hook portion being formed by bending a part of the lower end portion by being bent toward the engagement flange. The pin is provided with a head, And then penetrate the insertion flange and the insertion flange.

The clamp is fastened to both ends of the clamp by fastening means, and the fastening part is fastened and fastened by fastening means after the pin passes through the fastening flange and the insertion part, so that the friction part, the hat part and the clamp can be firmly fixed .

The fastening portion is formed by bending both ends of the clamp, and the fastening means can be fastened through the fastening portion as a bolt and a nut.

The clamp includes a ribbon-shaped body bent in a circular shape, and an upper end portion and a lower end portion of the body, the hook portion being formed by bending a part of the lower end portion by being bent toward the engagement flange, wherein the pin is provided with a head, And then passes through the first hole and the second hole of the insertion flange and the insertion flange.

According to the brake disk having the structure as described above, it is possible to provide a secure fastening structure in which stress concentration is not generated in the engaging portion during braking by combining the brake disk elements using different ring type engaging elements.

1 shows a conventional brake disc.
2 is an exploded perspective view of a brake disc according to an embodiment of the present invention;
3 is a perspective view showing a clamp of the brake disk shown in Fig.
4 is an assembled sectional view of the brake disk shown in Fig.

Hereinafter, a brake disk according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 2 is an exploded perspective view of a brake disc according to an embodiment of the present invention, FIG. 3 is a perspective view showing a clamp of the brake disc shown in FIG. 2, and FIG. 4 is an assembled cross-sectional view of the brake disc shown in FIG.

The brake disk of the present invention includes a friction part 100 formed with a coupling hole 120 at the center thereof and formed by bending a ring-shaped coupling flange 140 so as to rise along the circumference of the coupling hole 120; A HAT part 300 inserted into a coupling flange 120 of the friction part 100 at a lower end and formed with a ring-shaped insertion part 320 which is in close contact with an inner peripheral surface of the coupling flange 120; A circular clamp 500 which is in close contact with the outer circumferential surface of the coupling flange 140; And a plurality of pins 700 for connecting and fixing the clamp 500, the coupling flange 120, and the insertion portion 320 in order.

As shown in the figure, the friction part 100 is formed by bending a coupling hole 120 at the center and a ring-shaped coupling flange 140 rising along the circumference of the coupling hole 120. The hat part 300 is coupled to the friction part 100. An insertion part 320 is formed at the lower end of the hat part 300. The insertion part 320 is inserted into the engagement flange 120, And is formed in a ring shape which is in close contact with the inner circumferential surface of the flange 120. A circular clamp 500 is in close contact with the outer circumferential surface of the coupling flange 140 and a plurality of pins are connected to the clamp 500, the coupling flange 120 and the insertion portion 320 in order to fix them. Through this structure, the pin 700 is fixed with the friction part 100 and the hat part 300 through the clamp 500 instead of being directly in contact with the hat part 300 as in the prior art, The concentrated stresses are dispersed much.

A first hole 142 and a second hole 322 are formed in the coupling flange 140 and the inserting portion 320 at predetermined intervals along the periphery so that the pin 700 is inserted. The number of holes and pins can be adjusted according to the required design strength.

The coupling flange 140 and the insertion portion 320 are formed to be bent perpendicularly to the friction part 100 and the hat part 300.

Specifically, the clamp 500 includes a circular body 520 having a ribbon-like shape and a locking part 540 formed by bending a part of the upper and lower ends of the body 520 toward the coupling flange 140, The pin 700 is provided with a head 720 and the head 720 of the pin 700 is inserted into the space 560 between the body 520 of the clamp 500 and the engaging portion 540, So that the flange 140 and the insertion portion 320 are passed through.

Also, the first hole 142 and the second hole 322 are used as a penetration method. That is, the pin 700 is provided with a head 720 and the head 720 of the pin 700 is inserted into the space 560 between the body 520 of the clamp 500 and the engaging portion 540 And the first hole 142 and the second hole 322 of the insertion part 320 are passed through the rear coupling flange 140 and the insertion hole 320, respectively.

The pin is inserted into the space 560 between the body 520 of the clamp 500 and the engaging portion 540 and then slides to its position. And then passes through the corresponding first holes 142 and second holes 322 and fixes them. The head 720 of the pin 700 is restrained in the horizontal direction because it is caught by the retaining portion 540 of the clamp 500 and the torque applied upon braking by the pin 700 is transmitted to the clamp 500, And the hat part (300).

The clamp 500 has fastening portions 560 fastened and fastened by fastening means 580 at both ends so that the pin 700 passes through the fastening flange 140 and the insertion portion 320 and then fastened by fastening means 580 to tightly fix the friction part 100, the hat part 300, and the clamp 500. As shown in FIG. 3, the clamping unit 560 is formed by bending both ends of the clamp 500, and the clamping unit 580 can be fastened through the clamping unit 560 as a bolt and a nut . The clamp 500 is formed of a soft material and is ultimately pressed and fixed by the tightening means 580 to the engagement flange 140.

In addition, it is possible to additionally provide grooves / projections (not shown) on the inner surface of the coupling flange 140 and the outer surface of the inserting portion 320 in contact therewith, It will be advantageous.

Through such a structure, it is possible to provide a secure fastening structure in which stress concentration is not generated in the engaging portion during braking by combining different types of brake disk elements utilizing a ring type engaging element.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

100: friction part 140: engaging flange
300: Hat part 320: Insert part
500: clamp 520: body
540: latching part 700: pin

Claims

A friction part 100 formed with a coupling hole 120 at the center thereof and formed by bending the ring-like coupling flange 140 along the circumference of the coupling hole 120;
A HAT part 300 inserted into a coupling flange 120 of the friction part 100 at a lower end and formed with a ring-shaped insertion part 320 which is in close contact with an inner peripheral surface of the coupling flange 120;
A circular clamp 500 which is in close contact with the outer circumferential surface of the coupling flange 140; And
And a plurality of pins (700) connecting and fixing the clamp (500), the coupling flange (120), and the insertion portion (320) in order.

The method according to claim 1,
Wherein a first hole (142) and a second hole (322) are formed in the coupling flange (140) and the insertion portion (320) so that the pin (700) is inserted.

The method according to claim 1,
Wherein the coupling flange (140) and the insert part (320) are formed by bending perpendicularly in the friction part (100) and the hat part (300).

The method according to claim 1,
The clamp 500 includes a circular body 520 having a ribbon shape and a locking part 540 formed by bending a part of the upper and lower ends of the body 520 toward the coupling flange 140,
The pin 700 is provided with a head 720 and the head 720 of the pin 700 is inserted into the space 560 between the body 520 of the clamp 500 and the engaging portion 540, And penetrates the flange (140) and the insert part (320).

The method of claim 4,
The clamp 500 has fastening portions 560 fastened and fastened by fastening means 580 at both ends so that the pin 700 passes through the fastening flange 140 and the insertion portion 320 and then fastened by fastening means And the clamp part (560) are fastened and fixed by the fastening parts (580) and (580), thereby firmly fixing the friction part (100), the hat part (300) and the clamp (500).

The method of claim 5,
Wherein the fastening portion 560 is formed by bending both ends of the clamp 500 and the fastening means 580 is fastened through the fastening portion 560 as a bolt and a nut.

The method of claim 2,
The clamp 500 includes a circular body 520 having a ribbon shape and a locking part 540 formed by bending a part of the upper and lower ends of the body 520 toward the coupling flange 140,
The pin 700 is provided with a head 720 and the head 720 of the pin 700 is inserted into the space 560 between the body 520 of the clamp 500 and the engaging portion 540, And penetrates through the first hole (142) and the second hole (322) of the flange (140) and the insertion portion (320).