Carbon ceramic brake disc and vehicle body

Abstract

The utility model relates to a carbon ceramic brake disc and a vehicle body. The carbon-ceramic brake disc comprises a carbon-ceramic disc body, a first supporting assembly part, a second supporting assembly part, a transition buffering part, a first fastening matching part and a second fastening matching part. The carbon ceramic plate body comprises a first end face and a second end face. The first supporting assembly part comprises a first assembly part, and the second supporting assembly part comprises a second assembly part; the second assembling part is used for being matched with the first assembling part to fix the first supporting assembling part and the first end face. A transition buffer part is clamped between the first supporting assembly part and the first end face. The first fastening matching part is used for being matched with the second supporting assembly part to be in a fastening state, and the first fastening matching part can penetrate through the carbon ceramic plate body while being matched with the second supporting assembly part. The second fastening matching piece is used for being matched with the part, penetrating out of the carbon ceramic plate body, of the first fastening matching piece, so that the first supporting assembly piece and the carbon ceramic plate body are limited. The stress on the first end face is reduced through the transition buffer piece, and stress concentration is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle brake discs, and in particular to a carbon-ceramic brake disc and a vehicle body. Background Art

[0002] With the development of vehicle brake disc technology, carbon-ceramic brake discs have emerged in conjunction with braking technology. Carbon-ceramic brake discs offer lighter weight and improved braking performance. Ceramic brake discs are split, consisting of a disc body and multiple assembly components. When braking, the vehicle's brake pads clamp onto the friction surface on one side of the ceramic brake disc, causing stress concentration in the assembly components near the friction surface, while stress is reduced on the opposite side. Carbon-ceramic material is relatively weak, and existing arrangements are prone to reaching their strength limits and breaking. Utility Model Content

[0003] Based on this, it is necessary to provide a carbon ceramic brake disc and a vehicle body to address the problem of uneven structural stress distribution of the carbon ceramic brake disc.

[0004] A carbon-ceramic brake disc, comprising:

[0005] The carbon-ceramic disc body includes a first end surface and a second end surface, wherein the first end surface is used to contact the brake pad, and the second end surface is arranged in a direction away from the first end surface;

[0006] A first supporting assembly, assembled and positioned with the first end surface for connecting to the wheel hub, includes a first assembly portion;

[0007] A second supporting assembly, comprising a second assembly portion, the second assembly portion being configured to cooperate with the first assembly portion to fix the first supporting assembly to the first end surface;

[0008] A transition buffer member is sandwiched between the first supporting assembly member and the first end surface;

[0009] The first fastening fitting is used to be matched with the second supporting assembly to a fastened state, and can penetrate the carbon ceramic disc body from the first end surface until it passes through the second end surface;

[0010] The second fastening fitting is provided on the second end surface and is used to cooperate with the first fastening fitting to limit the first supporting assembly and the carbon-ceramic disc.

[0011] In one embodiment, a mounting through hole is provided on the carbon-ceramic disc body, and the openings at both ends of the mounting through hole respectively extend to the outside of the first end face and the outside of the second end face; the first supporting assembly is provided as a joint head, which includes a joint head body, and the first assembly portion is provided at the edge of the joint head body, and the first assembly portion is provided as a slot; the second supporting assembly is provided as a sleeve, which includes a sleeve body, and the second assembly portion is provided at one end of the sleeve body; the second assembly portion is provided as a clamping portion; the clamping portion is clamped on the slot, and the sleeve body extends from the slot into the mounting through hole; a through hole is provided inside the sleeve along its own length direction, and the openings at both ends of the through hole respectively extend to the outside of the sleeve body and the outside of the second assembly portion; the through hole is used to assemble the first fastening fitting.

[0012] In one embodiment, the transition buffer is provided with a limiting mounting hole, which is provided at a corresponding position between the first assembly portion and the mounting through hole, and is used to limit the second supporting assembly part.

[0013] In one embodiment, the transition buffer is configured as a gasket, and the gasket is used to separate the contact surface between the first supporting assembly and the carbon-ceramic disc.

[0014] In one embodiment, the first fastening fitting is configured as a bolt, and the second fastening fitting is configured as a nut; the second fastening fitting is threadably engaged with a portion of the first fastening fitting that extends outward from the second end surface.

[0015] In one embodiment, a plurality of mounting through holes are provided; the first assembly portion, the second assembly portion, the first fastening fitting and the second fastening fitting are all provided in accordance with the number of the mounting through holes.

[0016] In one embodiment, a recessed portion is provided on a side of the carbon-ceramic disc body facing away from the first end face, and the second end face is formed on the recessed portion.

[0017] In one embodiment, the carbon-ceramic disc body is provided with a central circular hole, and the mounting through holes are evenly distributed around the central circular hole; the transition buffer is correspondingly provided as a circular ring; the first supporting assembly is correspondingly provided as a circular disc, and the first end face is evenly provided along the edge of the circular disc.

[0018] In one embodiment, the maximum diameter of the sleeve body is smaller than the opening area of ​​the slot, and the opening area of ​​the position-limiting mounting hole is consistent with the maximum diameter of the sleeve body.

[0019] A vehicle body comprises a brake pad and the above-mentioned carbon-ceramic brake disc, wherein the brake pad cooperates with the first end surface of the carbon-ceramic brake disc to achieve braking.

[0020] The carbon-ceramic brake disc comprises a carbon-ceramic disc body, a first support assembly, a second support assembly, a transition buffer, a first fastening member, and a second fastening member. The carbon-ceramic disc body includes a first end face and a second end face. The first support assembly includes a first mounting portion for connection to the wheel hub. The second support assembly includes a second mounting portion; the second mounting portion is configured to engage with the first mounting portion to secure the first support assembly to the first end face. A transition buffer is interposed between the first support assembly and the first end face. The first fastening member is configured to engage with the second support assembly to secure the first support assembly to the second end face, and the first fastening member can penetrate the carbon-ceramic disc body while engaging with the second support assembly. The second fastening member engages with the portion of the first fastening member that extends outside the carbon-ceramic disc body, thereby securing the first support assembly and the carbon-ceramic disc body via the first fastening member. The first end surface serves as the friction surface between the brake disc and the brake pad. The transition buffer is arranged between the first end surface and the first supporting assembly, thereby transferring the stress of the first end surface to the transition buffer, avoiding stress concentration, and ensuring that the carbon-ceramic disc body will not be damaged due to stress concentration, thereby enhancing its structural strength while retaining the advantages of the carbon-ceramic brake disc.

[0021] A vehicle body, comprising the above-mentioned carbon-ceramic brake disc, has the above-mentioned beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is an exploded view of the assembly of the carbon-ceramic brake disc provided in an embodiment of the present application.

[0023] Figure 2 This is a schematic diagram of the assembly of the carbon-ceramic brake disc provided in an embodiment of the present application.

[0024] Figure 3 for Figure 2 Assembly diagram from another perspective.

[0025] Figure Number:

[0026] 1. Carbon ceramic disc; 1.1. First end surface; 1.2. Second end surface; 1.3. Mounting through hole;

[0027] 2. First support assembly; 2.1. First assembly part;

[0028] 3. Second support assembly; 3.1. Second assembly part;

[0029] 4. Transition buffer; 4.1. Limit mounting hole;

[0030] 5. a first fastening fitting;

[0031] 6. Second fastening fitting. DETAILED DESCRIPTION

[0032] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0033] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0034] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0035] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0036] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0037] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0038] See Figure 1-Figure 3 As shown, Figure 1 This is an exploded view of the assembly of the carbon-ceramic brake disc provided in an embodiment of the present application. Figure 2 This is a schematic diagram of the assembly of the carbon-ceramic brake disc provided in an embodiment of the present application. Figure 3 for Figure 2 The assembly diagram from another perspective shows a carbon-ceramic brake disc, comprising: a carbon-ceramic disc body 1, a first supporting assembly part 2, a second supporting assembly part 3, a transition buffer part 4, a first fastening fitting part 5, and a second fastening fitting part 6.

[0039] The carbon ceramic disc body 1 comprises a first end face 1.1 and a second end face 1.2; the first end face 1.1 serves as the friction surface of the brake disc for contacting the brake pad, and the brake pad applies tangential friction force on the first end face 1.1 to achieve braking.

[0040] The second end face 1.2 is arranged in a direction away from the first end face 1.1. The first support assembly 2 includes a first assembly portion 2.1; the second support assembly 3 includes a second assembly portion 3.1. The second assembly portion 3.1 is used to cooperate with the first assembly portion 2.1 to fix the first support assembly 2 to the first end face 1.1. The transition buffer 4 is sandwiched between the first support assembly 2 and the first end face 1.1. The transition buffer 4 can prevent the first end face 1.1 from directly contacting and bearing force with the first support assembly 2. The first support assembly 2 is used to connect to the wheel hub of the vehicle to ensure that the brake disc can function stably when the wheel rotates.

[0041] The second support assembly 3 is positioned between the carbon-ceramic disc 1 and the wheel hub. It effectively reduces friction between the two. During wheel rotation, the second support assembly 3 acts as a lubricant and cushion, lowering the coefficient of friction, minimizing wear and energy loss. The second support assembly 3 can be configured as any structure capable of achieving the aforementioned technical effects, such as a bearing or sleeve, and will not be further elaborated in this article.

[0042] The first fastening member 5 is configured to engage with the second support assembly 3 to a "fastened state." This "fastened state" refers to a state in which the first support assembly 2, the second support assembly 3, the transition buffer 4, the first fastening member 5, and the second fastening member 6 are all securely positioned on the carbon-ceramic disc 1. Furthermore, the first fastening member 5 can penetrate the carbon-ceramic disc 1 while engaging with the second support assembly 3. Specifically, the first fastening member 5 penetrates the carbon-ceramic disc 1 from the first end surface 1.1, and a portion of the first fastening member 5 extends out of the carbon-ceramic disc 1 from the second end surface 1.2. The second fastening member 6 is disposed on the second end surface 1.2 and is configured to engage with the portion of the first fastening member 5 extending out of the carbon-ceramic disc 1, thereby securing the first support assembly 2 and the carbon-ceramic disc 1 via the first fastening member 5.

[0043] When the first fastening fitting 5 is engaged with the second supporting assembly 3, the second supporting assembly 3 is also engaged with the first supporting assembly 2. Since the second fastening fitting 6 can position and fasten the first fastening fitting 5 to the carbon ceramic disc 1, the second supporting assembly 3 is also positioned and fastened to the carbon ceramic disc 1.

[0044] A disc made of carbon ceramic material offers a lighter density and improved braking performance. The carbon ceramic disc 1 of the present application incorporates a transition buffer 4 between the first end face 1.1, which mates with the brake pad, and the first fastening member 5. This prevents direct contact between the first end face 1.1 and the first fastening member 5. Stress generated between the first end face 1.1 and the brake pad is applied to the transition buffer 4. By increasing the contact area between the transition buffer 4 and the first end face 1.1, this stress is reduced. This prevents stress concentration on one side of the carbon ceramic disc 1, enhances the disc's structural strength, and prevents damage to the carbon ceramic disc due to uneven stress. This enhanced structural strength of the carbon ceramic disc 1 while retaining its advantages of lightweight and strong braking performance makes it suitable for use in entire vehicle structures.

[0045] It is foreseeable that the first supporting assembly 2 can be configured as a joint, flange, adapter plate, or other structure, and only needs to implement the above-mentioned assembly method. The second supporting assembly 3 can be configured as a shaft sleeve, bushing, or other structure, and only needs to implement the above-mentioned assembly method. The first fastening member 5 and the second fastening member 6 can be mated by a bolt and nut, a screw and nut, or other methods, which will not be further described herein.

[0046] In one embodiment of the present application, the carbon-ceramic disc body 1 is provided with a mounting hole 1.3, the two ends of which extend through the outside of the first end face 1.1 and the outside of the second end face 1.2, respectively. The first support assembly 2 is configured as a joint, which is used to transmit braking force from the brake system. When the brake pedal is depressed, the braking force acts on the brake disc through the brake caliper, and the joint acts as a bridge to transmit this force from the wheel hub to the brake disc.

[0047] The joint includes a joint body, the first assembly portion 2.1 being formed at an edge of the joint body and configured as a snap-in slot. The second supporting assembly 3 is configured as a sleeve, the sleeve including a sleeve body, the second assembly portion 3.1 being formed at one end of the sleeve body and configured as a snap-in portion.

[0048] The above-mentioned clamping portion is engaged with the above-mentioned clamping groove, and the above-mentioned sleeve body extends from the above-mentioned clamping groove into the above-mentioned mounting through hole 1.3; a through hole is opened inside the above-mentioned sleeve along its own length direction, and the openings at both ends of the above-mentioned through hole respectively penetrate to the outside of the two ends of the above-mentioned sleeve body and the outside of the above-mentioned second assembly portion 3.1; the above-mentioned through hole is used to assemble the above-mentioned first fastening fitting 5.

[0049] During actual assembly, first align the slot on the joint head with the mounting hole 1.3 on the carbon-ceramic disc 1, and position the transition buffer 4 between the joint head and the carbon-ceramic disc 1. Next, assemble the sleeve onto the joint head, aligning the second mounting portion 3.1 with the first mounting portion 2.1, effectively aligning the engagement portion with the slot. Once the sleeve and joint head are assembled, insert the sleeve body from the first end face 1.1 into the mounting hole 1.3, extending through the transition buffer 4.

[0050] The first fastening member 5 includes an insertion section and a stopper located at one end of the insertion section. After the sleeve and carbon-ceramic disc body 1 are positioned, the insertion section of the first fastening member 5 is inserted into the through-hole in a direction from the first end face 1.1 toward the second end face 1.2. The other end of the insertion section, facing away from the stopper, first enters the through-hole portion corresponding to the engaging portion and then the through-hole portion corresponding to the sleeve body, until it exits the through-hole to the outside of the second end face 1.2. "Outside of the second end face 1.2" refers to the side facing away from the first end face 1.1. After the insertion section of the first fastening member 5 exits the second end face 1.2, the second fastening member 6 engages with the insertion section, causing the stopper end of the first fastening member 5 to gradually move toward the second support assembly 3 until the stopper end of the first fastening member 5 abuts against the end face of the second support assembly 3 facing away from the carbon-ceramic disc body 1. Thus, the carbon ceramic disc body 1, the first supporting assembly part 2 and the transition buffer part 4 are clamped between the limiting end of the first fastening fitting 5 and the second fastening fitting 6.

[0051] In one embodiment of the present application, the transition buffer member 4 defines a limited mounting hole 4.1. The limited mounting hole 4.1 is configured to allow the second support assembly 3 to pass through. When the second support assembly 3 is configured as a sleeve, the sleeve extends through the limited mounting hole 4.1 and into the mounting through hole 1.3 of the carbon-ceramic disc 1. The limited mounting hole 4.1 is defined at a corresponding position between the first assembly portion 2.1 and the mounting through hole 1.3. The limited mounting hole 4.1 is configured to limit the position of the second support assembly 3, thereby positioning the transition buffer member 4 between the carbon-ceramic disc 1 and the first support assembly 2.

[0052] In one embodiment of the present application, the transition buffer member 4 is configured as a gasket, which is used to separate the contact surface between the first support assembly 2 and the carbon-ceramic disc 1. Except for the portion where the transition buffer member 4 is penetrated by the second support assembly 3, the transition buffer member 4 completely covers the surface of the first support assembly 2 facing the carbon-ceramic disc 1, thereby preventing hard contact between the first support assembly 2 and the carbon-ceramic disc 1.

[0053] It is foreseeable that the stress on the first end surface 1.1 side will be borne by the transition buffer 4. Increasing the contact area between the transition buffer 4 and the first end surface 1.1 can reduce the stress, thereby avoiding stress concentration on the first supporting assembly 2.

[0054] In one embodiment of the present application, the first fastening member 5 is configured as a bolt, with the bolt head serving as the stopper for the first fastening member 5 and the bolt shaft serving as the insertion section of the first fastening member 5, which is provided with external threads. The second fastening member 6 is configured as a nut, with the internal threads of the nut mating with the external threads of the insertion section. The second fastening member 6 is threadedly engaged with the portion of the first fastening member 5 that extends outside the second end surface 1.2.

[0055] In one embodiment of the present application, the above-mentioned mounting through holes 1.3 are provided in plurality; the above-mentioned first assembly portion 2.1, the above-mentioned second assembly portion 3.1, the above-mentioned first fastening fitting 5 and the above-mentioned second fastening fitting 6 are all provided in a number matching the number of the above-mentioned mounting through holes 1.3.

[0056] It is foreseeable that to enhance the connection strength of the brake disc structure, the structure formed by the combination of mounting hole 1.3, first assembly portion 2.1, second assembly portion 3.1, first fastening member 5, and second fastening member 6 is referred to as a complete mounting structure. Increasing the number of complete mounting structures will improve the strength of the brake disc structure. Preferably, the sleeve body length is consistent with the opening length of mounting hole 1.3, the bolt shank length is greater than the sleeve body length, and the bolt shank diameter is equal to the aperture of limit mounting hole 4.1 to ensure assembly stability.

[0057] In one embodiment of the present application, the carbon-ceramic brake disc body 1 is provided with a recessed portion on a side facing away from the first end surface 1.1, and the second end surface 1.2 is formed in the recessed portion. The recessed portion ensures that the assembly of the first fastening member 5 and the second fastening member 6 does not expand the overall area of ​​the carbon-ceramic brake disc, thereby ensuring that the carbon-ceramic brake disc does not occupy additional space when assembled to the vehicle.

[0058] In one embodiment of the present application, the carbon-ceramic disc body 1 is provided with a central circular hole, and the mounting holes 1.3 are evenly distributed around the central circular hole. The transition buffer 4 is correspondingly configured as a circular ring, and the first supporting assembly 2 is correspondingly configured as a circular disc, with the first end surface 1.1 evenly distributed along the edge of the disc. The even distribution of mounting holes 1.3 along the circumference of the disc evenly distributes the assembly force generated between the first assembly portion 2.1, the second assembly portion 3.1, and the carbon-ceramic disc body 1, thereby avoiding the problem of uneven stress distribution.

[0059] In one embodiment of the present application, the maximum diameter of the above-mentioned sleeve body is smaller than the opening area of ​​the above-mentioned slot, and the opening area of ​​the above-mentioned limiting mounting hole 4.1 is consistent with the maximum diameter of the above-mentioned sleeve body; thereby ensuring the convenience and stability of assembly.

[0060] A vehicle body includes a brake pad, including any of the aforementioned carbon-ceramic brake discs, wherein the brake pad cooperates with the first end surface of the carbon-ceramic brake disc to achieve braking. The vehicle body also includes a wheel hub, which is connected to a first support assembly 2 to achieve braking.

[0061] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A carbon ceramic brake disc, characterized in that: include: A carbon ceramic disc body (1) comprises a first end surface (1.1) and a second end surface (1.2), wherein the first end surface (1.1) is used to contact the brake pad, and the second end surface (1.2) is arranged in a direction away from the first end surface (1.1); A first supporting assembly part (2), assembled and positioned with the first end surface (1.1) and used for connecting to the wheel hub, comprising a first assembly portion (2.1); a second supporting assembly part (3), comprising a second assembly portion (3.1), the second assembly portion (3.1) being used to cooperate with the first assembly portion (2.1) to fix the first supporting assembly part (2) to the first end surface (1.1); a transition buffer member (4) sandwiched between the first supporting assembly member (2) and the first end face (1.1) and used to prevent the first supporting assembly member (2) from directly contacting the first end face (1.1); a first fastening fitting (5) adapted to engage with the second supporting assembly (3) to a fastened state, and capable of penetrating the carbon ceramic disc (1) from the first end surface (1.1) until exiting from the second end surface (1.2); A second fastening fitting (6) is provided on the second end surface (1.2) and is used to cooperate with the first fastening fitting (5) to limit the first supporting assembly (2) and the carbon ceramic disc (1).

2. The carbon-ceramic brake disc according to claim 1, characterized in that: A mounting through hole (1.3) is provided on the carbon ceramic disc body (1), and openings at both ends of the mounting through hole (1.3) respectively penetrate to the outside of the first end surface (1.1) and the outside of the second end surface (1.2); The first supporting assembly part (2) is configured as a joint head, the joint head comprises a joint head body, the first assembly part (2.1) is arranged on the edge of the joint head body, and the first assembly part (2.1) is configured as a slot; The second supporting assembly part (3) is configured as a shaft sleeve, the shaft sleeve comprises a shaft sleeve body, the second assembly part (3.1) is configured at one end of the shaft sleeve body; the second assembly part (3.1) is configured as a clamping part; The clamping portion is clamped on the clamping slot, and the shaft sleeve body extends from the clamping slot into the mounting through hole (1.3); A through hole is provided inside the shaft sleeve along its length direction, with openings at both ends of the through hole respectively penetrating to the outside of the shaft sleeve body and the outside of the second assembly portion (3.1); the through hole is used to assemble the first fastening fitting (5).

3. The carbon-ceramic brake disc according to claim 2, characterized in that: The transition buffer component (4) is provided with a limiting mounting hole (4.1), the limiting mounting hole (4.1) being provided at a corresponding position between the first assembly portion (2.1) and the mounting through hole (1.3), and the limiting mounting hole (4.1) being used to limit the second supporting assembly component (3).

4. The carbon-ceramic brake disc according to claim 2, characterized in that: The transition buffer member (4) is configured as a gasket, and the gasket is used to separate the contact surface between the first supporting assembly member (2) and the carbon ceramic disc body (1).

5. The carbon-ceramic brake disc according to claim 1, characterized in that: The first fastening fitting (5) is configured as a bolt, and the second fastening fitting (6) is configured as a nut; the second fastening fitting (6) is threadedly engaged with a portion of the first fastening fitting (5) extending to the outside of the second end surface (1.2).

6. The carbon-ceramic brake disc according to claim 2, characterized in that: A plurality of the mounting through holes (1.3) are provided; the first assembly portion (2.1), the second assembly portion (3.1), the first fastening fitting (5), and the second fastening fitting (6) are all provided in a manner matching the number of the mounting through holes (1.3).

7. The carbon-ceramic brake disc according to claim 1, characterized in that: The carbon ceramic disc body (1) is provided with a recessed portion on a side facing away from the first end surface (1.1), and the second end surface (1.2) is opened on the recessed portion.

8. The carbon-ceramic brake disc according to claim 2, characterized in that: The carbon ceramic disc body (1) is provided with a central circular hole, and the mounting through holes (1.3) are evenly distributed around the central circular hole; the transition buffer (4) is correspondingly provided as a circular ring; the first supporting assembly (2) is correspondingly provided as a circular disc, and the first end surface (1.1) is evenly provided along the edge of the circular disc.

9. The carbon-ceramic brake disc according to claim 3, characterized in that: The maximum diameter of the shaft sleeve body is smaller than the opening area of ​​the slot, and the opening area of ​​the position-limiting mounting hole (4.1) is consistent with the maximum diameter of the shaft sleeve body.

10. A vehicle body comprising a brake pad, characterized in that: The carbon-ceramic brake disc comprising the carbon-ceramic brake disc according to any one of claims 1 to 9, wherein the brake pad cooperates with the first end surface of the carbon-ceramic brake disc to achieve braking.

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