Long-fiber carbon ceramic brake disc with excellent cooling rate

Abstract

The utility model belongs to the technical field of brake discs, and particularly relates to a long-fiber carbon-ceramic brake disc with excellent cooling rate, which comprises a carbon-ceramic brake disc body and a friction surface, the friction surface is provided with a through air guide hole matrix, the air guide hole matrix is composed of a plurality of air guide units with arc-shaped structures, and each air guide unit is composed of a plurality of air guide holes; a plurality of air guide groove matrixes are arranged on the carbon ceramic brake disc body, and the air guide hole matrixes completely penetrate through the air guide groove matrixes; main body reinforcing ribs and auxiliary reinforcing ribs are arranged on the carbon-ceramic brake disc body around the air guide groove matrix, and assembly holes and assembly concave tables are arranged on the inner edge of the carbon-ceramic brake disc body. The carbon-ceramic brake disc solves the problems that friction materials of a brake pad are damaged, the service life is short and the braking effect is poor when a common metal brake disc is in matched friction with the brake pad by means of the advantages of materials and structures.

Description

Technical Field

[0001] The utility model belongs to the technical field of brake discs, and in particular relates to a long-fiber carbon ceramic brake disc with excellent cooling rate. Background Art

[0002] The brake disc is an important component for the braking of the car. The performance of the brake disc is related to the braking effect and driving comfort of the vehicle. At present, most of the brake discs on the market are made of metal and have a simple structure. The material and structural defects lead to poor cooling rate, an important performance consideration indicator of the brake disc. After a long time of driving and frequent braking, the brake disc will continue to be hot, and the heat in the brake disc cannot be dissipated in time, which will lead to low braking effect of the vehicle. In severe cases, it will lead to the risk of vehicle brake failure and endanger the life safety of the driver. And due to the high temperature of the brake disc, the friction surface of the brake disc and the brake pad will contact and rub when the vehicle brakes, which will cause damage to the friction material of the brake pad, reduce the service life and braking performance of the brake pad. The long-fiber carbon ceramic brake disc material itself has excellent high temperature resistance, and its unique design structure improves the heat dissipation efficiency of the disc body. Therefore, a long-fiber carbon ceramic brake disc with excellent performance is undoubtedly an excellent solution to the above problems. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the prior art, the utility model provides a long-fiber carbon ceramic brake disc with excellent cooling rate, which is used to solve a series of problems such as low braking system performance and damage to brake pads caused by defects in brake disc material and structural design.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A long-fiber carbon-ceramic brake disc with excellent cooling rate comprises a carbon-ceramic brake disc body and a friction surface, wherein the friction surface is provided with a through-type air guide hole matrix, wherein the air guide hole matrix is ​​composed of a plurality of arc-shaped air guide units, and the air guide unit is composed of a plurality of air guide holes; the carbon-ceramic brake disc body is provided with a plurality of air guide groove matrices, wherein the air guide hole matrix completely penetrates the air guide groove matrix; the carbon-ceramic brake disc body is provided with main reinforcement ribs and auxiliary reinforcement ribs around the air guide groove matrix, and the inner edge of the carbon-ceramic brake disc body is provided with assembly holes and assembly recesses.

[0006] Furthermore, the friction surface accounts for 80%-90% of the carbon-ceramic brake disc body.

[0007] Furthermore, the air guide hole matrix includes a first air guide unit, a second air guide unit and a third air guide unit; the number of air guide holes on adjacent air guide units increases by one.

[0008] Furthermore, the thickness of each air guide groove matrix is ​​1 / 3-2 / 3 of the thickness of the carbon-ceramic brake disc body.

[0009] Furthermore, the air guide groove matrix is ​​composed of a plurality of arc-shaped air guide grooves, which start from the outer edge of the brake disc body and converge at the brake disc assembly recess, and the lengths of adjacent arc-shaped air guide grooves (6) decrease by 3-5 mm in sequence.

[0010] Furthermore, the arc-shaped structure of the wind guide unit matches the flow trajectory of wind on the brake disc.

[0011] Furthermore, main reinforcement ribs are provided between adjacent air guide slot matrices, and auxiliary reinforcement ribs are provided between adjacent air guide slots; the main reinforcement ribs and the auxiliary reinforcement ribs are both arc-shaped structures, the main reinforcement ribs have a rib width of 20-22 mm, and the auxiliary reinforcement ribs have a rib width of 15-18 mm.

[0012] Furthermore, an assembly hole is provided at the inner edge of the carbon-ceramic brake disc body for connecting the carbon-ceramic brake disc and the joint head, and the wall thickness of each assembly hole side wall and the inner edge of the carbon-ceramic brake disc is 5-8 mm.

[0013] Furthermore, an assembly recess is provided at the inner edge of the carbon-ceramic brake disc body, the thickness of which is equal to the thickness of the assembly surfaces on both sides of the carbon-ceramic brake disc air guide groove matrix, and the air guide groove and the assembly recess are connected without obstruction.

[0014] The utility model includes but is not limited to the following beneficial effects:

[0015] (1) The carbon ceramic brake disc provided by the utility model is made of long-fiber carbon ceramic material, which has excellent high temperature resistance, making up for the shortcoming of slow heat dissipation caused by the material of ordinary metal brake discs;

[0016] (2) The carbon-ceramic brake disc provided by the utility model is designed with an air guide hole matrix and an air guide groove matrix, which realizes wind convection on the carbon-ceramic brake disc body by simulating the trajectory of wind during vehicle driving, thereby solving the problem that the metal brake disc has a simple structural design and cannot quickly dissipate heat.

[0017] (3) The carbon ceramic brake disc provided by the utility model effectively reduces the overall weight of the brake disc by providing structures such as grooves, holes, and assembly recesses, thereby increasing the vehicle's mileage and reducing the cost of use.

[0018] (4) The carbon ceramic brake disc provided by the utility model solves the problems of damage to the friction material of the brake pad, short service life and poor braking effect caused by the friction between the ordinary metal brake disc and the brake pad, by virtue of its material and structure advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a front and side stereogram of the utility model;

[0020] Figure 2 It is a cross-sectional view of the utility model;

[0021] Figure 3 It is a rear view of the utility model.

[0022] In the figure: 1. Carbon ceramic brake disc body; 2. Friction surface; 3. First air guide unit; 4. Second air guide unit; 5. Third air guide unit; 6. Air guide groove; 7. Auxiliary reinforcement rib; 8. Main body reinforcement rib; 9. Assembly hole; 10. Assembly recess. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Example 1: A long-fiber carbon ceramic brake disc with excellent cooling rate, the overall structure is as follows Figure 1 , Figure 3 As shown, it includes a carbon-ceramic brake disc body 1 and a friction surface 2; wherein, the friction surface 2 accounts for 80%-90% of the carbon-ceramic brake disc body, effectively ensuring sufficient friction area of ​​the carbon-ceramic brake disc; the brake disc is made of long-fiber carbon-ceramic material, which has excellent high-temperature resistance, making up for the shortcoming of slow heat dissipation of ordinary metal brake discs due to the material.

[0025] In this embodiment, a through-type air guide hole matrix is ​​provided on the friction surface 2, the number of the air guide hole matrix is ​​8-10 and the array is distributed on the carbon-ceramic brake disc body, the air guide hole matrix includes a first air guide unit 3, a second air guide unit 4 and a third air guide unit 5, and the above-mentioned air guide units are in an arc-shaped structure; the number of air guide holes on adjacent air guide units increases by 1 successively, which effectively ensures the timely dissipation of heat from the friction surface of the carbon-ceramic brake disc.

[0026] Specifically, in the present embodiment, the number of the overall air guide holes on the friction surface 2 of the carbon-ceramic brake disc is 72-90, and the diameter of each air guide hole is 4-6 mm.

[0027] Reference Figure 2 As shown, a transverse arc-shaped through-type air guide groove matrix is ​​provided on the carbon-ceramic brake disc body 1, and the thickness of each group of air guide groove matrix is ​​1 / 3-2 / 3 of the thickness of the carbon-ceramic brake disc body;

[0028] Specifically, each group of air guide groove matrix is ​​composed of 3-4 arc-shaped air guide grooves 6, starting from the outer edge of the brake disc body, and uniformly gathered at the brake disc assembly concave platform, and the length of each adjacent arc-shaped air guide groove 5 decreases by 3-5mm in sequence;

[0029] The arc-shaped structure design principle of the air guide matrix (including the air guide hole matrix and the air guide slot matrix) is to simulate the flow trajectory of the wind during vehicle driving. During vehicle driving, the structure can introduce external natural wind into the carbon-ceramic brake disc body through the arc structure, and at the same time, the heat in the carbon-ceramic brake disc body can be dissipated through the wheel rotation trajectory, forming a convection air duct structure, so that when the vehicle is driving and emergency braking, the convection wind state is continuously maintained in the carbon-ceramic brake disc body, thereby achieving rapid cooling of the carbon-ceramic brake disc.

[0030] Specifically, in this embodiment, all the air guide holes completely penetrate the air guide grooves to achieve an optimal heat dissipation effect.

[0031] In addition, main reinforcement ribs 8 and auxiliary reinforcement ribs 7 are provided around the air guide slot matrix on the carbon ceramic brake disc body 1 , and assembly holes 9 and assembly recesses 10 are provided at the inner edge of the carbon ceramic brake disc body 1 .

[0032] Specifically, in this embodiment, main reinforcement ribs 8 are provided between adjacent air guide slot matrices, and auxiliary reinforcement ribs 7 are provided between adjacent air guide slots 6; the main reinforcement ribs 8 and the auxiliary reinforcement ribs 7 are both arc-shaped structures, the width of the main reinforcement ribs 8 is 20-22mm, and the width of the auxiliary reinforcement ribs 7 is 15-18mm. The total number of reinforcement ribs is equal to the number of air guide slots, and this structure ensures that the carbon ceramic brake disc has excellent heat dissipation efficiency while having strong mechanical properties and use strength.

[0033] The inner edge of the carbon ceramic brake disc body 1 is provided with 8-12 assembly holes 9 for connecting the carbon ceramic brake disc and the joint. The wall thickness of each assembly hole 9 and the inner edge of the carbon ceramic brake disc is 5-8 mm, which fully ensures the structural strength of the component installation part.

[0034] An assembly recess 10 is also provided at the inner edge of the carbon-ceramic brake disc body 1, and its thickness is equal to the thickness of the assembly surfaces on both sides of the carbon-ceramic brake disc air guide groove matrix, and the air guide groove and the assembly recess 10 are connected without any obstruction. This structure not only reduces the overall weight of the carbon-ceramic brake disc, but also improves the convection efficiency of the air duct.

[0035] The long-fiber carbon ceramic brake disc is an integrated processed product, which ensures the overall mechanical properties and braking safety of the brake disc.

[0036] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0037] The terms "upper", "lower", "outer side", "inner side", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish the relative relationship in position if they exist, and do not need to be qualitative. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0038] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A long-fiber carbon ceramic brake disc with excellent cooling rate, comprising a carbon ceramic brake disc body (1) and a friction surface (2), characterized in that: The friction surface (2) is provided with a through-type air guide hole matrix, the air guide hole matrix is ​​composed of a plurality of arc-shaped air guide units, and the air guide unit is composed of a plurality of air guide holes; the carbon-ceramic brake disc body (1) is provided with a plurality of air guide groove matrices, the air guide hole matrix completely penetrates the air guide groove matrix; the carbon-ceramic brake disc body (1) is provided with main reinforcement ribs (8) and auxiliary reinforcement ribs (7) around the air guide groove matrix, and the inner edge of the carbon-ceramic brake disc body (1) is provided with an assembly hole (9) and an assembly recess (10).

2. The long-fiber carbon ceramic brake disc with excellent cooling rate according to claim 1, characterized in that: The friction surface (2) accounts for 80%-90% of the carbon ceramic brake disc body.

3. The long-fiber carbon ceramic brake disc with excellent cooling rate according to claim 1, characterized in that: The air guide hole matrix comprises a first air guide unit (3), a second air guide unit (4) and a third air guide unit (5); the number of air guide holes on adjacent air guide units increases by one in sequence.

4. The long-fiber carbon ceramic brake disc with excellent cooling rate according to claim 3, characterized in that: The thickness of each air guide groove matrix is ​​1 / 3-2 / 3 of the thickness of the carbon-ceramic brake disc body (1).

5. The long-fiber carbon ceramic brake disc with excellent cooling rate according to claim 1, characterized in that: The air guide groove matrix is ​​composed of a plurality of arc-shaped air guide grooves (6), the air guide grooves (6) are started from the outer edge of the brake disc body, and are uniformly gathered at the brake disc assembly concave platform, and the lengths of adjacent arc-shaped air guide grooves (6) decrease by 3-5 mm in sequence.

6. The long-fiber carbon ceramic brake disc with excellent cooling rate according to claim 1, characterized in that: The arc-shaped structure of the wind guide unit matches the flow trajectory of wind on the brake disc.

7. The long-fiber carbon ceramic brake disc with excellent cooling rate according to claim 1, characterized in that: Main reinforcement ribs (8) are arranged between adjacent air guide slot matrices, and auxiliary reinforcement ribs (7) are arranged between adjacent air guide slots (6); the main reinforcement ribs (8) and the auxiliary reinforcement ribs (7) are both arc-shaped structures, the width of the main reinforcement ribs (8) is 20-22 mm, and the width of the auxiliary reinforcement ribs (7) is 15-18 mm.

8. The long-fiber carbon ceramic brake disc with excellent cooling rate according to claim 1, characterized in that: The inner edge of the carbon-ceramic brake disc body (1) is provided with an assembly hole (9) for connecting the carbon-ceramic brake disc with the joint head, and the wall thickness of each assembly hole (9) and the inner edge of the carbon-ceramic brake disc is 5-8 mm.

9. The long-fiber carbon ceramic brake disc with excellent cooling rate according to claim 5, characterized in that: An assembly recess (10) is also provided at the inner edge of the carbon ceramic brake disc body (1), the thickness of which is equal to the thickness of the assembly surfaces on both sides of the carbon ceramic brake disc air guide groove matrix, and the air guide grooves and the assembly recess (10) are connected without any obstruction.

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