A brake disc

Abstract

This application relates to the technical field of braking devices and discloses a brake disc, including a brake disc body. The brake disc body has a central hole at its center, and a plurality of weight-reducing grooves are circumferentially spaced on the inner side of the brake disc body. A protrusion is formed between two adjacent weight-reducing grooves, and a connecting hole is formed on the protrusion. A plurality of ventilation holes are formed on the surface of the brake disc body, and each set of ventilation holes and the weight-reducing grooves are arranged alternately on the circumferential side of the brake disc. Through the reasonable arrangement of the central hole, weight-reducing grooves and ventilation holes, this application can reduce material usage and lower the weight of the brake disc while ensuring the effective braking friction area.

Description

Technical Field

[0001] This application relates to the technical field of braking devices, and in particular to a brake disc. Background Technology

[0002] In a braking system, the brake disc, as a core component, plays a decisive role in the performance, safety, and reliability of braking. It converts the vehicle's kinetic energy into heat energy and dissipates it through friction with the brake pads, thereby achieving deceleration and stopping.

[0003] In some two-wheeled vehicles, such as track-grade, racing-grade, or high-end civilian bicycles and motorcycles, in order to improve the vehicle's range and handling agility, in addition to requiring effective braking, it is also necessary to minimize the weight of the brake discs to improve vehicle performance. However, existing brake discs used in motorcycles and other similar vehicles are generally made of a single piece of cast iron or steel, resulting in a relatively high overall weight. Especially when using large-diameter brake discs, such as those with an outer diameter of over 200mm, the large steel disc body increases unsprung mass, affecting handling agility and range. Utility Model Content

[0004] In order to reduce the weight of the brake disc, this application provides a brake disc.

[0005] This application provides a brake disc, which adopts the following technical solution: A brake disc includes a brake disc body, a central hole is provided in the center of the brake disc body, a plurality of weight-reducing grooves are provided circumferentially on the inner side of the brake disc body, a protrusion is formed between two adjacent weight-reducing grooves, and a connecting hole is provided on the protrusion. The surface of the brake disc body is provided with several sets of ventilation holes, and each set of ventilation holes and the weight reduction groove are arranged alternately in the circumferential direction of the brake disc.

[0006] By adopting the above technical solution, the connection hole can be used to install the brake disc body. By setting the center hole and the weight reduction groove, the weight of the brake disc can be reduced. The ventilation hole and the weight reduction hole can work together to efficiently dissipate heat from the automatic disc. At the same time, the ventilation hole and the weight reduction groove are arranged in a staggered manner around the circumference, which can ensure the effective contact braking area between the brake disc surface and the brake pads, ensuring the braking effect of the brake disc, and can also effectively reduce the material of the brake disc and reduce its weight.

[0007] Optionally, the weight reduction groove and the connection hole are each provided with six, and the ventilation hole is provided with six sets.

[0008] By adopting the above technical solution, the six connection holes facilitate the installation and replacement of the brake disc with the original vehicle; the weight reduction grooves and ventilation holes are also arranged in six sets around the circumference to ensure even distribution and the friction effect of the brake pads.

[0009] Optionally, every three ventilation holes form a group, and the positions of these three ventilation holes are staggered.

[0010] By adopting the above technical solution, the three ventilation holes form a group and are staggered, which ensures the ventilation and heat dissipation effect while avoiding the problem of excessively small local friction area.

[0011] Optionally, the diameter of the ventilation hole is 6-8mm, and the distance between two adjacent ventilation holes in the same group is 18-21mm.

[0012] By adopting the above technical solution, the method of setting the ventilation holes is specifically disclosed. The diameter of the ventilation holes is 6-8mm, and the distance between two adjacent ventilation holes in the same group is 18-21mm. The reasonable layout of the ventilation holes can ensure the heat dissipation effect while minimizing the impact on the braking effect.

[0013] Optionally, the weight-reducing groove is configured as a U-shaped groove.

[0014] By adopting the above technical solution, U-shaped weight-reducing grooves are opened circumferentially on the inner side of the brake disc, which can greatly increase the heat dissipation of the brake disc while reducing weight.

[0015] Optionally, the outer diameter of the brake disc body is 160-260mm, and the thickness of the brake disc body is 5-10mm.

[0016] By adopting the above technical solutions, brake discs of this size range can be applied to different two-wheeled vehicles. At the same time, while ensuring a certain braking area and strength, it provides a basis for reducing the overall weight of the brake disc, which is conducive to improving the vehicle's range and handling flexibility.

[0017] Optionally, the brake disc body is made of carbon fiber reinforced composite material.

[0018] By adopting the above technical solution, the brake disc body is made of carbon fiber reinforced composite material, which can reduce the weight of the brake disc and improve the vehicle's range and handling flexibility.

[0019] Optionally, the outer sidewall, inner sidewall, and ventilation hole sidewall of the brake disc body are all provided with an anti-oxidation and ablation coating.

[0020] By adopting the above technical solution, an anti-oxidation and ablation coating is applied to the outer wall, inner wall, and ventilation hole sidewall of the brake disc body, ensuring that the surface of the brake disc is not prone to ablation under high temperature conditions.

[0021] In summary, this application includes at least one of the following beneficial effects: 1. By rationally arranging the center hole, weight reduction groove, and ventilation hole, it is possible to reduce material usage and brake disc weight while ensuring effective braking friction area; 2. By using carbon fiber composite materials to make brake discs and adding an anti-oxidation and ablation coating, the weight of the brake discs can be further reduced while improving their quality. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of an embodiment of this application.

[0023] Explanation of reference numerals in the attached drawings: 1. Brake disc body; 2. Center hole; 3. Weight reduction groove; 4. Ventilation hole; 5. Protrusion; 6. Connection hole. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 This application will be described in further detail.

[0025] This application discloses a brake disc. (Refer to...) Figure 1 The brake disc includes a brake disc body 1, weight-reducing grooves 3, protrusions 5, connecting holes 6, and ventilation holes 4. The brake disc body 1 has a central hole 2, making the brake disc an overall annular structure. Several weight-reducing grooves 3 are spaced circumferentially on the inner side of the brake disc body 1, with protrusions 5 formed between adjacent grooves. Connecting holes 6 are formed on the protrusions 5. Several sets of ventilation holes 4 are formed on the surface of the brake disc body 1, with each set of ventilation holes 4 and weight-reducing grooves 3 arranged alternately circumferentially on the brake disc.

[0026] By setting the center hole 2 and the weight reduction groove 3, the material used in the brake disc is reduced, thus achieving the effect of reducing the weight of the brake disc; the ventilation hole 4 allows air to circulate better and carry away heat, and the weight reduction groove 3 also increases the heat dissipation area and improves heat dissipation performance; at the same time, the staggered arrangement of the brake disc and the ventilation hole 4 can ensure the effective contact area when the brake pads abut against the brake disc body 1 at any position, ensuring the braking effect.

[0027] In this embodiment, the brake disc body 1 is the main body of the entire brake disc, and it performs the function of braking by friction with the brake pads. The brake disc body 1 is made of carbon fiber reinforced composite material, which has the characteristics of high strength and low density, and can effectively reduce the weight of the brake disc compared with traditional cast iron or steel.

[0028] In one optional embodiment, the carbon fiber reinforced composite material contains 45-50% SiC, 2-5% free silicon, and 50-60% carbon. SiC has high hardness and good wear resistance, which can improve the friction performance of the brake disc; free silicon helps to enhance the compactness of the material; and carbon provides a certain degree of toughness.

[0029] Furthermore, the outer diameter of the brake disc body 1 is 160-260mm, and the thickness is 5-10mm. Such dimensions can provide a better braking effect when rubbing against the brake pads. At the same time, this thickness can minimize the weight of the brake disc and ensure its service life.

[0030] For illustrative purposes only, when the brake disc body 1 is manufactured, carbon fiber can be selected for weaving and forming, densified by CVI chemical vapor deposition, graphitized at high temperature to obtain carbon body, and then processed into corresponding openings through machining processes.

[0031] Reference Figure 1 The weight-reducing grooves 3 are located on the inner side of the brake disc body 1 and are distributed circumferentially at intervals. Preferably, the weight-reducing grooves 3 are U-shaped grooves, and the edges are all connected with arc corners; the U-shaped groove design can reduce the weight of the brake disc while greatly increasing the heat dissipation area of ​​the brake disc. The opening of the U-shaped groove faces the inner side of the brake disc body 1, and its depth and width are determined according to the specific design of the brake disc.

[0032] In other embodiments, the shape of the weight reduction groove 3 can also be set as a V-shaped groove, a rectangular groove, a semi-circular groove, etc.

[0033] The protrusion 5 is the portion formed between two adjacent weight-reducing grooves 3. A connecting hole 6 is located at the center of each protrusion 5 and is used to install and replace the brake disc with the vehicle. The diameter and spacing of the connecting holes 6 are determined according to the vehicle's installation requirements. In this embodiment, six weight-reducing grooves 3 and six connecting holes 6 are arranged circumferentially. This arrangement ensures both the weight-reducing effect of the brake disc and the stability of the connection between the brake disc and the vehicle.

[0034] Ventilation holes 4 are formed on the surface of the brake disc body 1. Three ventilation holes 4 form a group, and six groups are arranged circumferentially, all positioned between adjacent weight-reducing grooves 3, evenly distributed throughout the friction area; that is, radially, these three ventilation holes 4 are all located on the outer side of the protrusion 5. The holes of the three ventilation holes 4 in the same group are staggered, preferably arranged in a "Y" shape. The diameter of the ventilation holes 4 is 6-8 mm, and the spacing between adjacent ventilation holes 4 in the same group is 18-21 mm. This arrangement improves airflow turbulence efficiency and facilitates heat dissipation. At the same time, the appropriate size and spacing of the holes reduce the impact on the strength of the brake disc body 1, ensuring the safety and stability of the brake disc during use.

[0035] Anti-oxidation and ablation coatings are provided on the outer side wall, inner side wall, and ventilation hole side wall of the brake disc body 1. The anti-oxidation and ablation coatings can be ceramic coatings, etc., and the coating process can be spraying, dipping, etc. This coating can ensure that the brake disc is not easily damaged in high temperature environments.

[0036] The implementation principle of a brake disc in this embodiment is as follows: The brake disc in this embodiment uses carbon fiber reinforced composite material, which significantly reduces the weight of the brake disc compared to traditional cast iron or steel, thereby improving the vehicle's handling agility and range. Simultaneously, by setting a center hole 2, weight-reducing groove 3, and ventilation holes 4, not only is the weight further reduced, but the heat dissipation performance of the brake disc is also improved. The staggered arrangement of the ventilation holes 4 and the weight-reducing holes avoids the problem of excessively small local friction areas affecting braking performance, ensuring the braking effect of the brake disc. The application of an anti-oxidation and ablation coating enhances the stability of the brake disc in high-temperature environments, ensuring the reliability of the brake disc.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A brake disc, characterized in that: The brake disc body (1) includes a central hole (2) in the center of the brake disc body (1), and several weight-reducing grooves (3) are provided circumferentially on the inner side of the brake disc body (1). A protrusion (5) is formed between two adjacent weight-reducing grooves (3), and a connecting hole (6) is provided on the protrusion (5). The surface of the brake disc body (1) is provided with a number of ventilation holes (4), and each set of ventilation holes (4) and the weight reduction groove (3) are arranged alternately in the circumferential direction on the brake disc body (1).

2. A brake disc according to claim 1, characterized in that: The weight reduction groove (3) and the connecting hole (6) are each provided with six, and the ventilation hole (4) is provided with six sets.

3. A brake disc according to claim 1, characterized in that: Every three ventilation holes (4) form a group, and the positions of these three ventilation holes (4) are staggered.

4. A brake disc according to claim 3, characterized in that: The diameter of the ventilation hole (4) is 6-8 mm, and the distance between two adjacent ventilation holes (4) in the same group is 18-21 mm.

5. A brake disc according to claim 1, characterized in that: The weight reduction groove (3) is configured as a U-shaped groove.

6. A brake disc according to claim 5, characterized in that: The outer diameter of the brake disc body (1) is 160-260mm, and the thickness of the brake disc body (1) is 5-10mm.

7. A brake disc according to any one of claims 1-6, characterized in that: The brake disc body (1) is made of carbon fiber reinforced composite material.

8. A brake disc according to claim 7, characterized in that: Anti-oxidation and ablation coatings are provided on the outer side wall, inner side wall and side wall of the ventilation hole (4) of the brake disc body (1).

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