CN212455283U

CN212455283U - Brake disc and vehicle

Info

Publication number: CN212455283U
Application number: CN202021257385.7U
Authority: CN
Inventors: 陈晨; 宁小锋; 刘肖肖; 于祥欢; 张英富; 徐波; 祝朋飞; 陈东旭
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-02-02
Anticipated expiration: 2030-06-30

Abstract

The utility model relates to a vehicle part field provides a brake disc and vehicle, wherein, the brake disc includes range upon range of spaced first disc and second disc and connects first disc with a plurality of air bars between the second disc, it is a plurality of the air bar about first disc or the centre of a circle of the quotation of second disc is the phyllotactic order of sunflower type and arranges, and a plurality of the air bar separates each other and forms the ventilation runner. The utility model discloses a brake disc, the phyllotaxis that is the sunflower seed formula of arranging the air rib can allow the air current to enter into between two discs with bigger velocity of flow, has improved the forced air cooling heat-sinking capability of air current to the brake disc for the brake disc can be in lower temperature, thereby has better brake performance, improves the security.

Description

Brake disc and vehicle

Technical Field

The utility model relates to a vehicle parts field, in particular to brake disc to a vehicle is related to.

Background

When an automobile is braked, the temperature of a brake disc can be continuously increased, if the cooling effect of the brake disc is poor, the brake heat fading phenomenon is easily caused, the phenomenon is very easy to occur when a driver carries out long downhill braking and continuous braking, and even the brake failure can be caused in serious conditions. In all traffic accidents with brake failure, the proportion caused by brake failure due to heat fading or high temperatures of the brake disc reaches nearly 80%. Therefore, the heat dissipation and temperature reduction effects of the brake disc are very important for the performance of the automobile in the whole braking process.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a brake disc to solve the not good problem that influences braking performance of brake disc radiating effect.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the brake disc comprises a first disc, a second disc and a plurality of ventilation ribs, wherein the first disc and the second disc are stacked and spaced, the ventilation ribs are connected between the first disc and the second disc, the ventilation ribs are arranged in a sunflower-seed-type phyllotactic manner relative to the circle center of the disc surface of the first disc or the second disc, and the ventilation ribs are spaced from each other to form ventilation flow passages.

Further, a plurality of said air barsThe mathematical model of the leaf order arrangement is as follows: in a polar coordinate established by taking the circle center of the disk surface of the first disk or the second disk as a pole and one radius line of the disk surface as a polar axis, the central point of one of the ventilation ribs is positioned as

n is the ordinal number of the central point of the ventilating rib, theta is the polar coordinate angle of the nth point, alpha is the phyllotactic divergence angle, R is the polar coordinate radius of the nth point, and k is the phyllotactic arrangement growth coefficient.

Further, the phyllotactic divergence angle is 137.508 degrees in golden section.

Furthermore, the phyllotaxis arrangement growth coefficient is 13-14, and the number of the ventilation ribs is 80-100.

Further, the inner diameter of the first disc and the second disc is 160mm-170mm, and the outer diameter is 340mm-350 mm.

Furthermore, the thickness of the first disk and the second disk is 8mm-12mm, and the thickness of the ventilation rib is 15mm-20 mm.

Further, the section of each ventilating rib is oval, and the length direction of each oval corresponds to the radial direction of the brake disc.

Further, the length of the long sides of the long circle is 8-12 mm, and the radius of the round sides at the two ends is 5-7 mm.

Further, the brake disc includes a mounting disc coupled to the first disc or the second disc.

Compared with the prior art, the brake disc of the utility model has the following advantages:

another object of the utility model is to provide a vehicle to solve the not good problem that influences braking performance of brake disc radiating effect of vehicle.

the utility model discloses a brake disc, the phyllotaxis that is the sunflower seed formula of arranging the air rib can allow the air current to enter into between two discs with bigger velocity of flow, has improved the forced air cooling heat-sinking capability of air current to the brake disc for the brake disc can be in lower temperature, thereby has better brake performance, improves the security.

A vehicle, characterized in that the vehicle is provided with a brake disc according to the above aspect.

The vehicle and the brake disc have the same advantages compared with the prior art, and the detailed description is omitted.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural diagram of a brake disc according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is a sectional view taken along line B-B in fig. 1.

Description of reference numerals:

1-first disc, 2-second disc, 3-ventilation rib, 4-installation disc.

Detailed Description

In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.

The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.

The utility model provides a brake disc, wherein, the brake disc is including range upon range of spaced first disc 1 and second disc 2 and connect first disc 1 with a plurality of air bars 3 between the second disc 2, it is a plurality of air bars 3 about first disc 1 or the centre of a circle of the quotation of second disc 2 is the phyllotactic order of sunflower seed formula and arranges, and a plurality of air bars 3 separate each other and form the ventilation runner.

The first disk 1 and the second disk 2 are main body parts of a brake disk, the outer side surfaces of the two disks can be friction surfaces, the first disk 1 and the second disk 2 are kept at intervals and connected through the ventilation ribs 3, and therefore air flow is allowed to reach between the first disk 1 and the second disk 2, and air cooling and heat dissipation of the first disk 1 and the second disk 2 are achieved.

The arrangement mode of the ventilation ribs 3 between the first disk 1 and the second disk 2 is a sunflower-seed-type phyllotactic arrangement about the center of a circle of the disk surface of one of the disks, as shown in fig. 3, the ventilation ribs 3 are arranged like a sunflower-seed-type arrangement, and certainly, the ventilation ribs 3 are kept at intervals and are not connected to allow airflow to flow between the adjacent ventilation ribs 3, so that the arrangement mode can allow the radiating airflow to flow between the two disks at a higher flow speed, the radiating effect is improved, and the problem that the braking capacity of the brake disk is reduced at a high temperature is solved.

Specifically, the mathematical model of the plurality of air bars 3 arranged in the leaf order is as follows: in a polar coordinate established by taking the circle center of the disk surface of the first disk 1 or the second disk 2 as a pole and one radius line of the disk surface as a polar axis, the central point of one of the ventilation ribs 3 is positioned as the central point

n is the ordinal number of the central point of the ventilating rib 3, theta is the polar coordinate angle of the nth point, alpha is the phyllotactic divergence angle, R is the polar coordinate radius of the nth point, and k is the phyllotactic arrangement growth coefficient. Wherein, the position of each air rib 3, more precisely the position of the central point of the air rib 3, is embodied in the form of polar coordinates, wherein, in the polar coordinates taking the center of the disk as the pole and one radius of the disk as the polar axis, the angular coordinate of the nth air rib 3 is θ ═ n ×, α, and the radius coordinate is

From this, the respective corresponding positions of the n ventilation bars 3 can be calculated.

Wherein the phyllotactic divergence angle is 137.508 degrees. As shown in fig. 3, the phyllotactic divergence angle is 137.508 °, and the angle between the position vector of each air rib 3 and the position vector of the previous air rib 3 is maximized, so that the air ribs 3 achieve the maximum filling and position complementation in space geometry.

Wherein the phyllotaxis arrangement growth coefficient is 13-14, and the number of the ventilation ribs 3 is 80-100. Preferably, the phyllotactic arrangement growth coefficient is 13.25, and the number of the air bars 3 is 90.

In table 1 below, when α is 137.508 ° and k is 13.25, the polar coordinates of some of the air bars 3, that is, the positions of the air bars 3 are determined. Of course, when designing the positions of the ventilation ribs 3, it is also necessary to select a polar coordinate point that can fall on the disk surface corresponding to one sub-interval of the value range of n, for example, the range of n is (20, 80), etc., in consideration of the inner diameter and the outer diameter of the first disk 1 and the second disk 2.

TABLE 1

Wherein the inner diameter of the first disk 1 and the second disk 2 is 160mm-170mm, and the outer diameter is 340mm-350 mm. The dimensions of the first and second discs 1, 2 substantially correspond to the dimensions of the brake disc, which can be selected according to the dimensions of the vehicle wheel.

Optionally, the thickness of the first disk sheet 1 and the second disk sheet 2 is 8mm-12mm, and the thickness of the ventilation rib 3 is 15mm-20 mm. The thicknesses of the first disk 1 and the second disk 2 ensure that the first disk 1 and the second disk 2 have enough mechanical strength and improve the pressure resistance, and the first disk 1 and the second disk 2 can be kept the same; the thickness of the ventilation ribs 3 represents the interval between the first disk 1 and the second disk 2, so that enough air intake is realized, and the thickness of the ventilation ribs 3 is not too large, and the strength of the first disk 1 and the second disk 2 is prevented from being influenced. Preferably, the thickness of the first disk 1 and the second disk 2 is 10mm, and the thickness of the air-vent rib 3 is 20 mm.

The section of the ventilating rib 3 is oblong, and the length direction of the oblong corresponds to the radial direction of the brake disc. As shown in fig. 3, the section of the air-channeled bar 3 perpendicular to the central axis of the brake disc is oblong, comprising two long sides and two semicircular sides, wherein the length direction thereof extends in the radial direction of the brake disc, which also facilitates the air flow to flow around the air-channeled bar 3.

Further, the length of the long sides of the long circle is 8-12 mm, and the radius of the round sides at the two ends is 5-7 mm. The section size of the air bars 3 should be in a proper range, i.e. enough strength is ensured, and the air bars should not be too large to affect the air flow. Preferably, the length of the long side of the air rib 3 is 10mm, and the radius is 5 mm.

Wherein the brake disc comprises a mounting disc 4 connected to the first disc 1 or the second disc 2. As shown in fig. 1 and 2, the mounting plate 4 is attached to the outer side of the first disc 1, but alternatively to the outer side of the second disc 2, the mounting plate 4 may be attached to a wheel to fix the brake disc to the wheel.

Additionally, the utility model also provides a vehicle, wherein, the vehicle is provided with above scheme the brake disc. The brake disc may be mounted on a wheel of a vehicle.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The brake disc is characterized by comprising a first disc (1) and a second disc (2) which are stacked and spaced, and a plurality of ventilation ribs (3) which are connected between the first disc (1) and the second disc (2), wherein the ventilation ribs (3) are arranged in a sunflower seed-type leaf sequence mode about the circle center of the disc surface of the first disc (1) or the second disc (2), and the ventilation ribs (3) are spaced from each other to form a ventilation flow channel.

2. Disc according to claim 1, characterized in that the mathematical model of the phyllotactic arrangement of the plurality of air bars (3) is: in a polar coordinate established by taking the circle center of the disc surface of the first disc (1) or the second disc (2) as a pole and one radius line of the disc surface as a polar axis, the central point of one of the ventilation ribs (3) is positioned as the central point

n is the ordinal number of the central point of the ventilating rib (3), theta is the polar coordinate angle of the nth point, alpha is the phyllotactic divergence angle, R is the polar coordinate radius of the nth point, and k is the phyllotactic arrangement growth coefficient.

3. The brake disc of claim 2, wherein the phyllotactic divergence angle is 137.508 ° golden section angle.

4. Disc according to claim 2, wherein the phyllotactic growth coefficient is between 13 and 14 and the number of said air bars (3) is between 80 and 100.

5. Brake disc according to claim 1, characterized in that the first disc (1) and the second disc (2) have an inner diameter of 160mm-170mm and an outer diameter of 340mm-350 mm.

6. Disc according to claim 5, characterized in that the thickness of the first disc (1) and of the second disc (2) is between 8mm and 12mm and the thickness of the air-bars (3) is between 15mm and 20 mm.

7. Brake disc according to claim 1, characterized in that the cross section of the ventilation bars (3) is oblong, the length direction of which corresponds to the radial direction of the brake disc.

8. The brake disc according to claim 7, wherein the long sides of the oblong circle have a length of 8mm to 12mm and the rounded sides have a radius of 5mm to 7 mm.

9. Brake disc according to claim 1, characterized in that it comprises a mounting disc (4) connected to the first disc (1) or the second disc (2).

10. A vehicle, characterized in that it is provided with a brake disc according to any one of claims 1-9.