Automobile brake disc with center array punching and scribing functions

Abstract

The utility model relates to the technical field of automobile brake discs, in particular to an automobile brake disc with central array punching and scribing, which is used for solving the problems that the existing brake disc cannot flow in multiple directions to take away heat, is poor in stress dispersion capability and is easy to deform and damage due to huge friction force and heat when being frequently used, and comprises a brake disc body, the brake disc body is composed of an outer single disc and an inner single disc, a plurality of groups of ribs are arranged between the outer single disc and the inner single disc, a brake center disc is arranged on the outer side wall of the outer single disc, and the brake center disc and the outer single disc are integrally formed in a pouring mode. The air circulation direction is increased, heat can be taken away more quickly, the surface temperature of the brake disc is reduced, meanwhile, a large number of arc-shaped ventilation grooves are formed, the heat dissipation effect can be improved, and meanwhile the stress dispersion capacity of the brake disc is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile brake discs, in particular to an automobile brake disc with a central array punched and scored. Background Art

[0002] The car brake disc is one of the key components of the car's braking system. When the brake pedal is pressed, the brake pads and brake discs rub against each other, converting the vehicle's kinetic energy into heat energy, thereby slowing down or stopping the vehicle. A large amount of heat will be generated during the braking process, and the brake disc can help dissipate this heat to prevent the braking system from overheating and failing, ensuring the stability of braking performance.

[0003] The Chinese patent application number 2022225293181 discloses an automobile brake disc, in which a plurality of connecting plates extending radially along the second brake disc are installed on the surface of the second brake disc. When the connecting plates rotate, wind force can be generated in the heat dissipation groove, further accelerating the air circulation speed on the surfaces of the first brake disc and the second brake disc, so as to further improve the heat dissipation efficiency.

[0004] However, during the entire process of continuous rotation of the brake disc, since there are no ventilation gaps on the surface of the connecting plate, the air cannot flow smoothly in multiple directions when the brake disc rotates, making it difficult for the air to quickly and effectively remove the heat generated on the surface of the brake disc. In addition, the brake disc's own stress dispersion ability is quite poor. When the brake disc is frequently used, it is very easy for the brake disc to deform or even be damaged due to the extremely large friction and the large amount of heat generated thereby. This will undoubtedly bring great safety hazards and adverse effects to the normal driving and use of the vehicle.

[0005] In view of the above technical defects, a solution is now proposed. Utility Model Content

[0006] The utility model aims to provide a central array perforated and scored automobile brake disc, which is used to solve the problems mentioned in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A central array perforated and scored automobile brake disc comprises a brake disc body, wherein the brake disc body is composed of an outer single disc and an inner single disc, a plurality of groups of ribs are arranged between the outer single disc and the inner single disc, a brake center disc is arranged on the outer side wall of the outer single disc, the brake center disc and the outer single disc are integrally formed by casting, and a plurality of groups of mounting holes are arranged on the outer side of the brake center disc in a circular array with the center of the brake center disc as the center.

[0009] Furthermore, the ribs are arranged in a circular array with the inner single disk as the center, the outer single disk and the inner single disk are integrally cast, and a main air duct is formed between adjacent ribs.

[0010] Furthermore, an auxiliary air duct is provided on the side wall of the rib, a semi-spiral groove is provided on the inner wall of the auxiliary air duct along the axial direction of the rib, a through hole is provided through the side wall of the rib, and the auxiliary air duct is connected to the main air duct.

[0011] Furthermore, the relative back sides of the outer single disk and the inner single disk are respectively provided with a plurality of groups of scored grooves, a plurality of groups of arc-shaped ventilation grooves and limit grooves in a circular array with the center of the outer single disk and the center of the inner single disk, the arc-shaped ventilation grooves are connected with the limit grooves, and the arc-shaped ventilation grooves become thicker step by step along the axial direction.

[0012] Furthermore, the side wall of the outer single disk is centered on the center of the outer single disk and is provided with multiple groups of heat dissipation holes in a circular array to increase the heat dissipation capacity, and the side wall of the inner single disk is centered on the center of the inner single disk and is provided with multiple groups of heat dissipation holes in a circular array to increase the heat dissipation capacity.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. When the utility model is in use, multiple groups of arc-shaped ventilation grooves are arranged on the outer sides of the outer single disc and the inner single disc. When braking, since the brake disc body generates stress due to huge friction and heat, the arc-shaped ventilation grooves can disperse the stress, increase its ability to resist deformation and cracking, reduce local stress concentration, and thus reduce the risk of deformation or damage to the brake disc body.

[0015] 2. When the utility model is in use, an auxiliary air duct is opened on the rib. The auxiliary air duct cooperates with the main air duct and the through hole, which not only increases the air circulation direction, so that it can take away heat more quickly and improve the heat dissipation effect, but also the semi-spiral groove is opened axially on the rib to enable the air entering the auxiliary air duct to flow in a spiral along the semi-spiral groove, thereby better dissipating the heat generated inside the brake disc body, reducing thermal deformation and thermal stress, and increasing the service life of the brake disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings;

[0017] Figure 1 An exploded view of the automobile brake disc body with the central array of holes and lines punched in the utility model;

[0018] Figure 2 A three-dimensional diagram of a car brake disc with a central array of holes and lines in the utility model;

[0019] Figure 3 It is a three-dimensional diagram of the outer single disk structure in the utility model;

[0020] Figure 4 It is a schematic diagram of the rib structure in the utility model.

[0021] Figure numerals: 1. brake disc body; 201. outer single disc; 202. inner single disc; 3. ribs; 4. brake center disc; 5. mounting hole; 6. heat dissipation hole; 7. main air duct; 8. auxiliary air duct; 801. semi-spiral groove; 802. through hole; 9. ruled groove; 10. arc-shaped ventilation groove; 11. limit groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example: Figure 1 - Figure 4 As shown, a central array perforated and scored automobile brake disc comprises a brake disc body 1, the brake disc body 1 is composed of an outer single disc 201 and an inner single disc 202, and a plurality of ribs 3 are arranged between the outer single disc 201 and the inner single disc 202, such as Figure 2 As shown, the brake center disc 4, the outer single disc 201, the inner single disc 202 and the rib 3 are integrally formed by casting, the outer side wall of the outer single disc 201 is provided with the brake center disc 4, the brake center disc 4 and the outer single disc 201 are integrally formed by casting, and the outer side of the brake center disc 4 is provided with a plurality of groups of mounting holes 5 in a circular array with the center of the brake center disc 4 as the center, and the mounting holes 5 are provided in the brake center disc 4 to facilitate fixing and mounting with the vehicle body;

[0024] like Figure 1 and Figure 4 As shown, the ribs 3 are arranged in a circular array with the inner single disk 202 as the center, the outer single disk 201 and the inner single disk 202 of the ribs 3 are cast as one piece, a main air duct 7 is formed between adjacent ribs 3, and a through hole 802 is opened through the side wall of the ribs 3;

[0025] When the brake disc body 1 is rotating at a high speed, the air can increase the air circulation direction by passing through the through holes 802 opened through the side walls of the ribs 3, thereby accelerating the heat dissipation speed inside the brake disc body 1, and avoiding the problem that the heat inside the brake disc body 1 cannot be quickly dissipated due to high-speed operation, and deformation or damage occurs. An auxiliary air duct 8 is opened on the side wall of the rib 3, and the auxiliary air duct 8 is connected to the main air duct 7, so as to increase the air circulation volume. At the same time, a semi-spiral groove 801 is opened on the inner wall of the auxiliary air duct 8 along the axial direction of the rib 3, so that the air entering the auxiliary air duct 8 can flow in a spiral manner along the semi-spiral groove 801, which can better dissipate the heat generated inside the brake disc body 1, reduce thermal deformation and thermal stress, and increase the service life of the brake disc.

[0026] The relative back sides of the outer single disc 201 and the inner single disc 202 are respectively provided with a plurality of groups of scored grooves 9, a plurality of groups of arc-shaped ventilation grooves 10 and limit grooves 11 in a circular array with the center of the outer single disc 201 and the center of the inner single disc 202. The arc-shaped ventilation grooves 10 are connected with the limit grooves 11. The provision of the scored grooves 9 can accelerate the heat dissipation of the outer single disc 201 and the inner single disc 202. At the same time, the scored grooves 9 can also accelerate the dissipation speed of the powder generated by the friction between the brake disc body 1 and the brake pad. The limit grooves 11 are provided on one side of the arc-shaped ventilation grooves 10, and the two are connected. When the brake disc body 1 needs to be dismantled for inspection and repair, the limit grooves 11 can cooperate with other tools to position the brake disc body 1 more quickly and effectively. When the brake disc body 1 rotates, the limit grooves 11 can also increase the air capacity circulating in the arc-shaped ventilation grooves 10, thereby further improving the heat dissipation capacity of the brake disc body 1.

[0027] The arc-shaped ventilation groove 10 gradually becomes thicker along the axial direction, that is, the arc-shaped ventilation groove 10 is shallower in the rotation direction of the outer single disc 201 and the inner single disc 202. When the brake disc body 1 rotates, air enters the arc-shaped ventilation groove 10. As the arc-shaped ventilation groove 10 gradually becomes thicker, the volume of the air in the arc-shaped ventilation groove 10 is instantly compressed. During the compression process, the air flow speed is instantly accelerated due to the shallower depth of the arc-shaped ventilation groove 10, thereby accelerating the heat dissipation speed of the outer single disc 201 and the inner single disc 202, and further accelerating the speed of removing the powder generated by the friction between the brake disc body 1 and the brake pad. The arc-shaped ventilation groove 10 can make the overall structure of the brake disc body 1 more stable and increase its ability to resist deformation and rupture. In addition, when braking, since the brake disc body 1 is subjected to huge friction and heat, the arc-shaped ventilation groove 10 can disperse these stresses and reduce local stress concentration, thereby reducing the risk of deformation or damage of the brake disc body 1.

[0028] The side wall of the outer single disc 201 is penetrated by a plurality of heat dissipation holes 6 in a circular array with the center of the outer single disc 201 as the center, so as to increase the heat dissipation capacity. The side wall of the inner single disc 202 is penetrated by a plurality of heat dissipation holes 6 in a circular array with the center of the inner single disc 202 as the center, so as to increase the heat dissipation efficiency of the brake disc body 1. A large number of heat dissipation holes 6 are arranged on the outer sides of the outer single disc 201 and the inner single disc 202, and the heat dissipation holes 6 are arranged in a circular shape, thereby increasing the effective contact surface of the outer single disc 201 and the inner single disc 202 for heat dissipation, and improving the overall heat dissipation efficiency of the brake disc body 1.

[0029] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

[0030] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0031] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A central array perforated and scored automobile brake disc, comprising a brake disc body (1), wherein the brake disc body (1) is composed of an outer single disc (201) and an inner single disc (202), characterized in that: A plurality of groups of ribs (3) are arranged between the outer single disc (201) and the inner single disc (202); a brake center disc (4) is arranged on the outer side wall of the outer single disc (201); the brake center disc (4) and the outer single disc (201) are integrally formed by casting; and a plurality of groups of mounting holes (5) are arranged on the outer side of the brake center disc (4) in a circular array with the center of the brake center disc (4) as the center.

2. The central array perforated and scored automobile brake disc according to claim 1, characterized in that: The ribs (3) are arranged in a circular array with the center of the inner single disk (202) as the center, the outer single disk (201) and the inner single disk (202) of the ribs (3) are cast in one piece, and a main air duct (7) is formed between adjacent ribs (3).

3. The central array perforated and scored automobile brake disc according to claim 1, characterized in that: An auxiliary air duct (8) is provided on the side wall of the rib (3); a semi-spiral groove (801) is provided on the inner wall of the auxiliary air duct (8) along the axial direction of the rib (3); a through hole (802) is provided through the side wall of the rib (3); and the auxiliary air duct (8) is connected to the main air duct (7).

4. The central array perforated and scored automobile brake disc according to claim 1, characterized in that: The opposite back surfaces of the outer single disk (201) and the inner single disk (202) are provided with a plurality of groups of scored grooves (9), a plurality of groups of arc-shaped ventilation grooves (10) and limiting grooves (11) in a circular array around the center of the outer single disk (201) and the center of the inner single disk (202), respectively; the arc-shaped ventilation grooves (10) are connected to the limiting grooves (11), and the arc-shaped ventilation grooves (10) gradually become thicker along the axial direction.

5. The central array perforated and scored automobile brake disc according to claim 1, characterized in that: The side wall of the outer single disk (201) is provided with a plurality of heat dissipation holes (6) in a circular array with the center of the outer single disk (201) as the center, thereby increasing the heat dissipation capacity; the side wall of the inner single disk (202) is provided with a plurality of heat dissipation holes (6) in a circular array with the center of the inner single disk (202) as the center, thereby increasing the heat dissipation capacity.

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