KR20140052616A - Brake disk for vehicle - Google Patents

Brake disk for vehicle Download PDF

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Publication number
KR20140052616A
KR20140052616A KR1020120118928A KR20120118928A KR20140052616A KR 20140052616 A KR20140052616 A KR 20140052616A KR 1020120118928 A KR1020120118928 A KR 1020120118928A KR 20120118928 A KR20120118928 A KR 20120118928A KR 20140052616 A KR20140052616 A KR 20140052616A
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KR
South Korea
Prior art keywords
plate
center
assembly
vehicle
disk
Prior art date
Application number
KR1020120118928A
Other languages
Korean (ko)
Inventor
유형래
Original Assignee
유형래
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Publication date
Application filed by 유형래 filed Critical 유형래
Priority to KR1020120118928A priority Critical patent/KR20140052616A/en
Publication of KR20140052616A publication Critical patent/KR20140052616A/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
    • F16D65/122—Discs; Drums for disc brakes adapted for mounting of friction pads
    • 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
    • F16D65/125—Discs; Drums for disc brakes characterised by the material used for the disc body
    • 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
    • F16D65/128—Discs; Drums for disc brakes characterised by means for cooling
    • 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
    • F16D2065/134—Connection
    • F16D2065/1384—Connection to wheel hub
    • 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
    • F16D2065/134—Connection
    • F16D2065/1392—Connection elements

Abstract

The present invention relates to a brake disk for a vehicle which is connected to rotate with the vehicle and capable of braking through the friction against a brake pad. The brake disk comprises a plate assembly in which the lateral side is selectively touched to the brake pad and a plurality of ventilation channels is formed to be extended in a radial direction around the center; and a disk hub (50) assembled to the plate assembly and connected to the vehicle to deliver the torque of the vehicle to the plate assembly. The plate assembly includes a disk-shaped first plate (20) combined with the disk hub (50) and in which the outer surface is touched with the brake pad; a second plate (40) combined with the first plate (20) and in which the outer surface is touched with the brake pad; and a center plate (30) combined between the first plate (20) and the second plate (40), made of aluminum or aluminum alloy, and forming an air passage as a space rib (33) is protruding from the outer surface toward at least one among the first plate (20) and the second plate (40). The present invention has an advantage in which the driving efficiency of the vehicle is improved as the center plate (30) and the disk hub (50) not in contact with the brake pad among constituent parts of the brake disk are made of lightweight materials such as aluminum so that the entire weight of the vehicle is reduced.

Description

[0001] DESCRIPTION [0002] BRAKE DISK FOR VEHICLE [

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a brake disk for an automobile, and more particularly, to a brake disk for an automobile which is made of an aluminum material and has improved weight saving and heat radiation function.

BACKGROUND ART [0002] Generally, a brake device installed in an automobile has a structure in which a braking force is obtained by pressing a circular formed brake disk with a brake pad. Such a braking device changes the kinetic energy to thermal energy due to dynamic friction generated when the brake pads and the brake disk are compressed, thereby reducing the speed of the vehicle or stopping the vehicle.

More precisely, in the case of the disk type brake device, when the driver depresses the brake pedal, the piston is driven, and the left and right pads are pushed out to press the left and right sides of the brake disk.

In order to improve the running performance and the fuel economy and improve the heat dissipation performance of such a disk type brake device, there is a continuing need to form a brake disk as light as possible. For this purpose, a part of the brake disk is made of a light metal such as aluminum, Alloys may also be used.

That is, the portion contacting with the brake pad is made of a cast iron plate material having a relatively high strength and the rest is made of a composite material structure formed of an aluminum alloy or the like. In this case, the cast iron plate material continuously rubs with the brake pad, Wear occurs.

If the cast iron metal plate is worn like this, the entire brake disk needs to be replaced, thereby wasting parts. This results in a problem of increasing the replacement cost of the brake disk.

Further, even if a heat-radiating material such as aluminum or an alloy thereof is used, there is a limit to improvement in the heat radiation function due to the structural characteristics of a disk-shaped brake device in which thin circular plates are stacked at narrow intervals.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide a vehicle brake disk with improved heat dissipation performance and braking performance.

According to an aspect of the present invention for achieving the above object, the present invention provides a vehicle brake disk connected to a vehicle and rotated together to enable braking of the vehicle through friction with the brake pad, A plate assembly in which right and left side surfaces are selectively in contact with the brake pads and a plurality of ventilation channels extending radially with respect to the center are formed, and a plate assembly assembled to the plate assembly and connected to the vehicle to transmit rotational force of the vehicle to the plate assembly Wherein the plate assembly is coupled to the disc hub and the outer surface of the disc plate is in contact with the brake pad; a first plate coupled to the first plate and having an outer surface connected to the brake pad, A second plate which is in contact with the first plate, And a center plate which is coupled between the first plate and the second plate and is made of aluminum or an aluminum alloy and has a space rib protruding from at least one of the first plate and the second plate.

The center plate includes a ring-shaped center body having a center hole formed at the center thereof, and spacer ribs protruding from either the upper surface or the lower surface of the center body to closely contact with at least one of the first plate and the second plate. The spacer rib extends in a curved direction and is formed radially with respect to a center of the center hole.

The outer surfaces of the spacer ribs of the center plate and the outer surfaces of the first plate and the second plate closely contacting the spacer ribs are formed with fastening protrusions and fastening grooves corresponding to each other to prevent slippage during the rotation of the plate assembly.

The first plate, the second plate, and the center plate have first fastening holes, second fastening holes, and center fastening holes formed at positions corresponding to each other, and are assembled by fastening assembly.

The plurality of spacer ribs formed around the center plate are alternately formed with the fastening protrusions and the center fastening holes.

The fastener assembly includes a cylindrical center piece inserted into the first fastener, the second fastener, and the center fastener, an elastic member inserted into the center piece, and a second fastener, And a pair of fastening bolts inserted into both sides of the center piece through fastening holes and screwed to the inner circumferential surface of the center piece.

The disk hub is made of aluminum or an aluminum alloy and is coupled to the plate assembly to be spaced from the plate assembly.

The disk hub and the plate assembly are coupled to each other by a floating assembly. The floating assembly includes a center member having a center hole formed therein. The plate assembly is inserted into one end of the center hole of the center member, And a floating nut which is fastened to the floating bolt at the other side of the floating assembly of the first plate, wherein the center member is provided with a spacer part, and the floating assembly is assembled The spacer portion is positioned between the bottom surface of the disk hub and the outer surface of the first plate so that the distance between the disk hub and the first plate is equal to the thickness of the spacer portion.

The head of the floating bolt is inserted into the seating groove of the disk hub, and the head of the floating bolt and the outer surface of the disk hub are continuous with each other.

A heat dissipating slit or a plurality of heat dissipating holes are formed in the first plate, the second plate, and the center plate at positions corresponding to each other, and the heat dissipating slit is formed along a curved path extending radially.

The following effects can be expected in the vehicle brake disc according to the present invention as described above.

In the present invention, since the center plate and the disc hub, which are not in contact with the brake pads, are made of a lightweight material such as aluminum among the parts constituting the vehicle brake disc, the brake disc is lightened, .

In addition, the weight reduction of the vehicle brake disk reduces the driving loss of the driving shaft, resulting in an improvement in fuel economy and output of the vehicle.

In the present invention, the center plate and the disk hub, which are made of aluminum excellent in heat dissipation property, are included to improve the overall heat dissipation. Particularly, the center plate is positioned between the first plate and the second plate, The frictional heat of the first plate and the second plate generated in the first plate is more efficiently removed.

Further, by improving the heat radiation performance, the strain caused by heat of each component constituting the brake disk is lowered and the durability of the brake disk is improved.

In addition, in the present invention, the floating assembly is spaced apart from the disk hub and the plate assembly to form a heat dissipating space therebetween, and the spacer rib provided on the center plate includes a plurality of ventilation channels between the first plate and the second plate, So that more efficient heat dissipation can be performed, and the heat radiation efficiency of the vehicle brake disk can be further improved.

Further, in the present invention, when the vehicle brake disc is worn by a limit value or more, only the first plate and the second plate need to be replaced without replacing the entire brake disk for a vehicle, so that waste of parts is reduced, Is reduced.

In addition, since the disk hub constituting the vehicle brake disk can be detached from the brake disk, the disk hub can be replaced to fit the desired vehicle, so that the vehicle brake disk can be attached to a wider range of vehicles, There is an effect to be improved.

1 is a perspective view showing a configuration of a preferred embodiment of a vehicle brake disc according to the present invention.
2 is an exploded perspective view showing a configuration of an embodiment of the present invention.
3 is a perspective view showing a configuration of a center plate constituting an embodiment of the present invention.
FIG. 4 is a front view showing a coupling structure between a disk hub and a plate assembly constituting an embodiment of the present invention; FIG.
5 is an exploded perspective view showing a configuration of a floating assembly connecting between a disk hub and a plate assembly constituting an embodiment of the present invention.
6 is a bottom perspective view showing the bottom structure of the embodiment of the present invention.
FIG. 7 is a perspective view showing a structure of a fastener assembly for coupling a center plate and a plate assembly constituting an embodiment of the present invention. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of a vehicle brake disc according to the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 is a perspective view showing a construction of a preferred embodiment of a vehicle brake disc according to the present invention, and Fig. 2 is an exploded perspective view showing the construction of an embodiment of the present invention.

As shown in these drawings, a vehicle brake disk according to the present invention is connected to a vehicle and rotates together to selectively enable braking of the vehicle through friction with a brake pad (not shown). As described below, A plurality of parts are assembled.

The vehicle brake disc mainly includes a plate assembly (not designated) and a disc hub 50. The plate assembly is a portion substantially in contact with the brake pad. The disc hub 50 is a portion connected to the vehicle, The plate assembly and the disk hub 50 are assembled together.

The right and left side surfaces of the plate assembly are selectively in contact with the brake pads and a plurality of ventilation channels extending radially with respect to the center are formed to improve heat dissipation. The ventilation channel is formed by a center plate 30, which will be described below, which will be described in detail below.

The plate assembly includes a first plate 20, a center plate 30, and a second plate 40 as shown in FIG. These parts are formed into a disk shape corresponding to each other and assembled together to constitute one plate assembly.

The first plate 20 is engaged with the disk hub 50 and the outer surface thereof is brought into contact with the brake pad to cause friction. The first body 21 of the first plate 20 is formed in a substantially ring shape having a first through hole 21 'formed at the center thereof. The first body 21 has a plurality of first heat dissipating slits 22 are formed. The first heat dissipating slit 22 is formed through the first body 21 and extends radially with respect to the center of the first plate 20 as shown in FIG. In this embodiment, the heat dissipating slits are formed in a long slit shape connected to one another, but they may be composed of a plurality of heat dissipating holes.

A plurality of first fastening holes 24 are formed in the first plate 20. The first fastening hole 24 is a portion penetrating by the fastener assembly 70 for assembly with the second plate 40 and the center plate 30 to be described below. As shown in the drawing, the first fastening holes 24 are formed in pairs, and a plurality of first fastening holes 24 are formed at regular intervals.

A skirt portion 26 is formed on the inner peripheral surface of the first through hole 21 'of the first plate 20 and a floating mounting hole 28 is formed in the skirt portion 26. The floating assembly 28 is formed through the skirt 26 by coupling the disk hub 50 and the first plate 20 by the floating assembly 60 to be described below.

Although not shown, a first fastening groove is formed on the bottom surface of the first plate 20 so as to be coupled to the fastening protrusion 36 of the center plate 30 to be described later.

A second plate (40) is positioned on the other side of the first plate (20). The second plate 40 is engaged with the first plate 20 and the outer surface of the second plate 40 is selectively brought into contact with the brake pad to cause friction.

The second plate 40 has a shape corresponding to that of the first plate 20. More precisely, the second plate 40 is formed in a circular plate shape having a second through hole 41 ' 20, a plurality of second heat dissipating slits 42 are formed.

A plurality of second fastening holes 44 and a second fastening groove 46 are formed in the second body 41 of the second plate 40. The second fastening holes 44 correspond to the first fastening holes 24 of the first plate 20 and the center fastening holes 34 of the center plate 30 to be described later. And the second fastening groove 46 corresponds to a portion where the second body 41 is inserted and joined with the assembling protrusion of the center plate 30.

The second fastening hole (44) and the second fastening groove (46) are alternately formed around the second body (41).

A center plate 30 is provided between the first plate 20 and the second plate 40. The center plate 30 connects between the first plate 20 and the second plate 40 and forms a ventilation channel for heat radiation. In addition, the center plate 30 is made of aluminum or an alloy thereof to reduce the overall weight of the brake disk for a vehicle and to improve heat dissipation. In the case of the center plate 30, since it is not a portion that directly rubs against the brake pad, it can be made of a relatively light material.

More specifically, the center plate 30 is coupled between the first plate 20 and the second plate 40 and is made of aluminum or an aluminum alloy. On the outer surface of the center plate 30, The space ribs 33 protrude in at least one direction of the plate 40 to form a ventilation channel.

For this, the center plate 30 includes a ring-shaped center body 31 having a center hole 31 'formed at its center, and a center hole 31' projecting from either the upper surface or the lower surface of the center body 31, And a space rib 33 which is in close contact with at least one of the plate 20 and the second plate 40. In the present embodiment, the space ribs 33 extend in both directions of the center body 31 to form ventilation channels in the vertical direction.

In the center plate 30, the space rib 33 extends in a curved direction and is formed radially with respect to the center of the center hole 31 '. This is for the purpose of further improving heat dissipation in consideration of the rotational direction of the automobile wheel.

On the upper surface of the space rib 33 of the center plate 30, a fastening protrusion 36 is formed. The fastening protrusions 36 are inserted into first fastening grooves (not shown) formed in the first plate 20 and second fastening grooves 46 formed in the second plate 40 so that they are assembled . The assembly between the fastening protrusion 36 and the first fastening groove 46 and the first fastening groove 46 is performed by rotating the first plate 20 and the second plate 40 And the center plate 30 and prevents the slip phenomenon from occurring between the center plate 30 and the center plate 30. In the assembling process, the assembled state of the plate assembly can be facilitated.

The assembly between the fastening protrusions 36 and the first and second fastening grooves 46 serves to prevent deformation due to vibration and impact generated when friction is applied to the brake pads, The fastener assembly 70, which will be described later, is provided with the elastic member 75 for preventing the fastening member 70 from being loosened, thereby firmly fixing the fastener assembly 70 and absorbing the vibration and shock generated during the friction.

A center fastening hole 34 is formed on the upper surface of the space rib 33. The center fastening holes 34 correspond to the first fastening holes 24 and the second fastening holes 44 and allow the fastening hole assembly 70 to assemble them.

The central heat dissipating slit 32 is also formed in the center body 31 of the center plate 30. The center dissipating slit 32 is formed through the center body 31. The center dissipating slit 32 of the center dissipating slit 32 is formed in the first heat dissipating slit 22 of the first plate 20 and the second heat dissipating slit 42 of the second plate 40, And are formed at corresponding positions so that they form one heat dissipating slit.

Here, since the first heat dissipating slit 22, the second heat dissipating slit 42, and the center heat dissipating slit 32 forming the heat dissipating slit are formed at positions corresponding to each other, the state in which they are penetrated is visually confirmed , When the vehicle brake disk is installed in the vehicle, the interior portion of the vehicle is observed, thereby improving the aesthetics of the vehicle brake disk.

As described above, the plate assembly is composed of a center plate 30 made of an aluminum material and a first plate 20 and a second plate 40 made of a relatively rigid material such as steel, The total weight is reduced and the structure for heat radiation is increased.

A disk hub 50 is assembled to the plate assembly. The disc hub 50 is assembled to the plate assembly and connected to the vehicle to transmit the rotational force of the vehicle to the plate assembly. The disc hub 50 is formed in a disc shape as shown in FIG.

The disk hub 50 has an outer shape and a skeleton formed by a disk-shaped hub body 51 formed with a hub hole 51 'at the center thereof. The disk hub 50 surrounds the edges of the hub body 51, 52 are formed.

The floating assembly 52 is a portion through which the floating bolt 64 of the floating assembly 60 is passed and is adapted to be coupled between the disk hub 50 and the first plate 20 by the floating assembly 60. [ do. The floating assembly 52 is formed to penetrate the disk hub 50 as shown in FIG.

A seating groove 53 is formed in the floating assembly 52. The seating groove 53 is a portion into which the head 66 of the floating bolt 64 is inserted. As shown in the enlarged view of FIG. 2, A round portion 54 is formed inside the seating groove 53. The round portion 54 is a portion corresponding to the round portion 67 of the head portion 66 of the floating bolt 64 and the seating groove 53 is formed so as to be recessed, 66 and the outer surface of the disk hub 50 may have a continuous plane.

7, the fastener assembly 70 includes a first fastening hole 24, a second fastening hole 44, and a second fastening hole 44. The first fastening hole 24, the second fastening hole 44, And an elastic member 75 inserted into the center piece 71. The elastic piece 75 is inserted into the center piece 71 through the center piece 71 and the center piece 71, (73). 7, the first plate 20 of the plate assembly assembled by the fastener assembly 70 is omitted.

The fastening bolt 73 is inserted into both sides of the center piece 71 through the first fastening hole 24 and the second fastening hole 44 and is screwed to the inner circumferential surface of the center piece 71 . The elastic member 75 is for preventing the fastener from being easily separated during the rotation process due to the nature of the brake disk for a vehicle which rotates at a high speed.

In addition, the fastener assembly 70 serves to prevent the components from being distorted due to vibration and shock generated when friction is applied to the brake pads, and to prevent the components from being opened.

Meanwhile, the disk hub 50 and the plate assembly are assembled to each other by the floating assembly 60. 4, when the disk hub 50 and the plate assembly are assembled, the floating assembly 60 is assembled in a state in which the spaces between the disk hub 50 and the plate assembly are separated to some extent (H) .

In Fig. 5, the configuration of the floating assembly is shown in an exploded perspective view. As shown, the floating assembly 60 includes a center member 61. The center member 61 has a center hole formed therein and is coupled with the floating bolt 64, thereby acting as a kind of nut.

At this time, the center member 61 is provided with a spacer 62. The spacer 62 protrudes from the side surface of the center member 61. The diameter of the floating assembly 28 of the first plate 20 and the diameter of the floating assembly 52 of the disk hub 50 Diameter and is positioned between the first plate 20 and the disk hub 50 so that the first plate 20 and the disk hub 50 are spaced apart. Accordingly, a heat dissipation space for heat dissipation may be formed between the first plate 20 and the disk hub 50.

More precisely, when the floating assembly 60 is assembled, the spacer portion 62 is positioned between the bottom surface of the disk hub 50 and the outer surface of the first plate 20, so that the disk hub 50 and the first The spacing between the plates 20 is equal to the thickness H of the spacers 62.

A floating bolt 64 is coupled to the center member 61. The floating bolt 64 is engaged with the floating assembly 52 of the disk hub 50 and the center hole of the center member 61, And the floating assemblies 28 of the plate 20, respectively, and at least a part of the threads 65 are formed and screwed with the floating nuts 69.

That is, the floating bolt 64 is fastened to the floating bolt 64 on the other side of the floating assembly 28 of the first plate 20. When the floating assembly 60 is assembled, the first plate 20 receives a force to be pulled toward the disk hub 50, and the first plate 20 and the disk hub 50 are coupled to the center member 61) are interposed therebetween.

The floating bolt 64 is provided with a head portion 66. The head portion 66 is seated in the seating groove 53 formed in the floating assembly 52 of the disk hub 50 described above, And a round portion 67 is formed in a part thereof. The floating assembly 60 is preferably made of a material having excellent strength and durability such as stainless steel. Reference numeral 68 denotes a washer.

In the present embodiment, the floating assembly 60 is composed of water separate from the plate assembly, but the floating assembly 60 may be integrally formed with the disk hub 50. More precisely, a center member 61 constituting the floating assembly 60 is integrally formed on the bottom surface of the disk hub 50, and a spacer portion 62 formed on the center member 61 forms a disk- (50) and the first plate (20) are spaced apart from each other.

Hereinafter, the operation of the vehicle brake disk according to the present invention will be described in detail with reference to the drawings.

First, a process of assembling a brake disc for a vehicle according to the present invention will be described. A plate assembly constituting a brake disc for a vehicle is assembled. That is, the first plate 20 and the second plate 40 are coupled to both sides of the center plate 30.

At this time, a fastening protrusion 36 is formed on the space rib 33 of the center plate 30, and corresponding fastening grooves are formed in the first plate 20 and the second plate 40, 30, the first plate 20, and the second plate 40 can be assembled at the correct positions with respect to each other.

In this state, the first plate 20, the center plate 30, and the second plate 40 are coupled to each other by the fastener assembly 70. More precisely, when the first plate 20, the center plate 30 and the second plate 40 are assembled together, the first plate 20, the center plate 30 and the second plate 40 The center fastening hole 34 and the second fastening hole 44 are communicated with each other and the center piece 71 constituting the fastening hole assembly 70 is passed across the inside of the first fastening hole 24, .

In this state, the elastic piece 75 is inserted into the center piece 71 and the two fastening bolts 73 constituting the fastener assembly 70 are fastened to the first plate 20 and the second plate 40 through a first fastening hole 24 and a second fastening hole 44 and screwed into a thread formed inside the center piece 71. [

The first plate 20, the center plate 30, and the second plate 40 are assembled by the fastener assembly 70. Preferably, as shown in FIG. 1, the head of the fastening bolt 73 is assembled into the first fastening hole 24 (the second fastening hole 44 in the opposite direction) to some extent. This is to prevent the head portion 66 of the fastening bolt 73 from being worn together when the first plate 20 and the second plate 40 are worn in friction with the brake pads.

Next, the process of assembling the disk hub 50 to the plate assembly will be described. The disk hub 50 is positioned at one side of the first plate 20 of the plate assembly, (61) between the disk hub (50) and the first plate (20).

In this state, the floating bolt 64 passes through the floating assembly portion 52 of the disk hub 50, the floating assembly portion 28 of the first plate 20 via the center member 61, And is screwed to the floating nut 69 on the other side of the floating mounting hole 28. The spacer 62 of the center member 61 is positioned between the bottom surface of the disk hub 50 and the top surface of the first plate 20 and is spaced therebetween to form a heat dissipating space.

Next, the operation of the vehicle brake disk according to the present invention will be described. When the vehicle is driven, the disk hub 50 coupled to the vehicle is rotated, and the plate assembly coupled to the disk hub 50 is rotated together therewith .

Then, when the driver operates the brake, the flap pad moves in the direction of the plate assembly to cause friction with the first plate 20 and the second plate 40, and the rotational speed of the wheel is reduced by such friction.

At this time, during the operation of the brake, friction between the plate assembly and the brake pad is transmitted to the disk hub 50 via the floating assembly 60 and finally affects the rotation of the vehicle wheel. The braking force due to friction is transmitted to the vehicle body via the floating assembly 60, so that rapid shudder or vibration can be prevented from being transmitted to the vehicle body.

Finally, the heat dissipation structure of the brake disk for a vehicle according to the present invention will be described. The plate assembly is primarily heat-dissipated by an aluminum-made center plate 30, and the heat dissipation performance is improved by the structure of the center plate 30 do. That is, a plurality of ventilation channels communicating with the inside and outside of the plate assembly are formed in the plate assembly by the space ribs 33 of the center plate 30 so that heat is dissipated (arrow A in FIG. 1).

In addition, the first heat dissipating slit 22, the second heat dissipating slit 42, and the center heat dissipating slit 32, which are respectively formed in the first plate 20, the second plate 40, and the center plate 30, So that heat can be radiated up and down with reference to Fig. 1. (arrow B in Fig. 1)

A space is formed between the first plate 20 and the disk hub 50 by the floating assembly 60. A space between the first plate 20 and the disk hub 50 is formed between the plate assembly and the disk hub 50, (Arrow C in Fig. 1)

As described above, since the vehicle brake disc according to the present invention is provided with various heat dissipating means, the heat dissipation performance of the entire brake disk for a vehicle is improved.

It is to be understood that the invention is not limited to the disclosed embodiment, but is capable of many modifications and variations within the scope of the appended claims. It is self-evident.

20: first plate 30: center plate
40: second plate 50: disk hub
60: Floating assembly

Claims (10)

A vehicle brake disk connected to a vehicle and rotated together to enable braking of the vehicle through friction with the brake pads, the brake disk comprising:
A plate assembly in which right and left side surfaces are selectively in contact with the brake pads and a plurality of ventilation channels extending radially with respect to the center are formed,
And a disk hub assembled to the plate assembly and connected to the vehicle to transmit rotational force of the vehicle to the plate assembly,
A disk-shaped first plate coupled to the disk hub and having an outer surface in contact with the brake pad,
A second plate coupled to the first plate and having an outer surface in contact with the brake pad,
And a center plate coupled between the first plate and the second plate and made of aluminum or an aluminum alloy and having a space rib protruding from the first plate or the second plate in at least one direction of the first plate or the second plate, ≪ / RTI >
[2] The apparatus of claim 1, wherein the center plate comprises a ring-shaped center body having a center hole formed at a center thereof, at least one of the first plate and the second plate protruding from one side of the upper surface or the lower surface of the center body, Wherein the spacer rib is formed in a radial direction with respect to a center of the center hole while being extended in a curved direction.
The plate assembly according to claim 2, wherein the outer surface of the spacer ribs of the center plate and the outer surfaces of the first plate and the second plate closely contact the spacer ribs, and fastening protrusions and fastening grooves are formed, Wherein the slip is prevented.
[4] The apparatus of claim 3, wherein the first plate, the second plate, and the center plate have first fastening holes, second fastening holes, and center fastening holes formed at positions corresponding to each other, A brake disk for a vehicle.
5. The brake disk for a vehicle according to claim 4, wherein the plurality of spacer ribs formed around the center plate are alternately formed with the fastening protrusions and the center fastening holes.
6. The assembly of claim 5, wherein the fastener assembly
A cylindrical center piece inserted into the first fastening hole, the second fastening hole, and the center fastening hole;
An elastic member inserted into the center piece,
And a pair of fastening bolts inserted into both sides of the center piece through the first fastening hole and the second fastening hole and screwed to the inner circumferential surface of the center piece, respectively.
7. The brake disc of claim 6, wherein the disc hub is made of aluminum or an aluminum alloy and is coupled to the plate assembly to be spaced from the plate assembly.
8. A method according to any one of claims 1 to 7, wherein the disk hub and the plate assembly are coupled to each other by a floating assembly,
A center member having a center hole formed therein,
A floating bolt through which a floating assembly part of the disk hub, a center hole of the center member, and a floating assembly hole of the first plate, respectively,
And a floating nut fastened to the floating bolt on the other side of the floating assembly of the first plate,
Wherein the center member is provided with a spacer portion so that when the floating assembly is assembled, the spacer portion is positioned between the bottom surface of the disk hub and the outer surface of the first plate such that a distance between the disk hub and the first plate is spaced by the thickness of the spacer portion. A brake disk for a vehicle.
9. The vehicle headlamp according to claim 8, wherein a seat groove is formed in the disk hub, and a head portion of the floating bolt is inserted into the seat groove, so that the head portion of the floating bolt and the outer surface of the disk hub have a continuous plane. Brake Discs.
The heat dissipating slit according to claim 9, wherein the first plate, the second plate, and the center plate have heat dissipating slits or a plurality of heat dissipating holes at positions corresponding to each other, and the heat dissipating slits are formed along a curved path extending radially Features a car brake disc.

KR1020120118928A 2012-10-25 2012-10-25 Brake disk for vehicle KR20140052616A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160100758A (en) * 2015-02-16 2016-08-24 서한산업(주) A Brake Disc
CN106870606A (en) * 2015-12-11 2017-06-20 Posco公司 Attached type potassium steel brake disc
CN108317194A (en) * 2018-03-26 2018-07-24 湖南世鑫新材料有限公司 Bullet train axle-mounted brake disk component
CN109236902A (en) * 2018-10-31 2019-01-18 福建省泉通摩托车配件有限公司 A kind of motorcycle disk brake
KR101985622B1 (en) * 2018-07-16 2019-06-03 옥재동 Discs combined with cast iron and aluminum
CN109869423A (en) * 2019-03-21 2019-06-11 中国铁道科学研究院集团有限公司 A kind of carbon pottery axle-mounted brake disk suitable for high-speed EMUs
CN111301367A (en) * 2020-03-30 2020-06-19 吉林大学 Bidirectional floating fixing structure for carbon fiber composite brake disc
CN113513549A (en) * 2020-04-09 2021-10-19 北京优加特福乐科技有限公司 Internal circulation water-cooling brake

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160100758A (en) * 2015-02-16 2016-08-24 서한산업(주) A Brake Disc
CN106870606A (en) * 2015-12-11 2017-06-20 Posco公司 Attached type potassium steel brake disc
US10018236B2 (en) 2015-12-11 2018-07-10 Posco Attachable high-Mn steel brake disk
CN106870606B (en) * 2015-12-11 2019-02-22 Posco公司 Attached type potassium steel brake disc
CN108317194A (en) * 2018-03-26 2018-07-24 湖南世鑫新材料有限公司 Bullet train axle-mounted brake disk component
CN108317194B (en) * 2018-03-26 2024-03-12 湖南世鑫新材料有限公司 Shaft-mounted brake disc assembly for high-speed train
KR101985622B1 (en) * 2018-07-16 2019-06-03 옥재동 Discs combined with cast iron and aluminum
CN109236902A (en) * 2018-10-31 2019-01-18 福建省泉通摩托车配件有限公司 A kind of motorcycle disk brake
CN109869423A (en) * 2019-03-21 2019-06-11 中国铁道科学研究院集团有限公司 A kind of carbon pottery axle-mounted brake disk suitable for high-speed EMUs
CN111301367A (en) * 2020-03-30 2020-06-19 吉林大学 Bidirectional floating fixing structure for carbon fiber composite brake disc
CN113513549A (en) * 2020-04-09 2021-10-19 北京优加特福乐科技有限公司 Internal circulation water-cooling brake
CN113513549B (en) * 2020-04-09 2023-03-21 北京优加特福乐科技有限公司 Internal circulation water-cooling brake

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