Carbon ceramic brake disc with high heat dissipation

Abstract

The utility model discloses a carbon-ceramic brake disc with high heat dissipation, comprising a carbon-ceramic brake disc body and a connecting piece, wherein the carbon-ceramic brake disc body is arranged in an annular shape, and the connecting piece comprises an external thread sleeve and a fixing nut, wherein the bottom of the external thread sleeve is fixedly connected with an annular plate, the top of the external thread sleeve is fixedly connected with an annular mounting disk, a plurality of mounting holes for connecting with an axle are provided on the annular mounting disk, the carbon-ceramic brake disc body is sleeved on the external thread sleeve, the fixing nut is threadedly mounted on the external thread sleeve, the carbon-ceramic brake disc body is pressed against the annular plate by the fixing nut, and a locking piece for preventing the fixing nut from loosening is installed on the annular mounting disk; the utility model can realize rapid connection of the carbon-ceramic brake disc body through the connecting piece composed of the external thread sleeve, the annular mounting disk, the annular plate and the fixing nut, and can effectively prevent the fixing nut from rotating in the opposite direction due to vibration, thereby causing the fixing nut to loosen.

Description

Technical Field

[0001] The utility model relates to the technical field of brake discs, in particular to a carbon-ceramic brake disc with high heat dissipation. Background Art

[0002] Carbon-ceramic brake discs are made of carbon fiber reinforced silicon carbide-based composite materials. They combine the physical properties of carbon fiber and polycrystalline silicon carbide. They have the advantages of low density, high temperature resistance, high and stable friction performance, etc. They have broad application prospects in high-energy braking fields such as automobiles, high-speed trains, and airplanes.

[0003] This patent with announcement number CN216642898U discloses a carbon-ceramic brake disc with high heat dissipation, including a brake disc body and a mounting groove. The brake disc body is in a circular ring shape, and the mounting groove is located on the inner side of the ring of the brake disc body. The brake disc body includes an outer friction disc and an inner friction disc. The surfaces of the outer friction disc and the inner friction disc are both provided with a first heat dissipation hole and a second heat dissipation hole. A groove body portion and a solid portion are arranged between the outer friction disc and the inner friction disc. The groove body portion and the solid portion are spaced apart and distributed around the center of a circle. The first heat dissipation hole and the second heat dissipation hole are respectively correspondingly opened on the walls of the solid portion and the groove body portion. The first heat dissipation hole and the second heat dissipation hole both penetrate the brake disc body, and the groove body portion penetrates the brake disc body.

[0004] The carbon ceramic brake disc adopts an active heat dissipation device, which uses the spiral heat dissipation holes to actively draw external air into the heat dissipation holes by rotating the brake disc. Compared with the traditional passive heat dissipation, it is more efficient and can quickly cool the brake disc to prevent overheating.

[0005] However, during actual assembly, the fixing ring needs to be connected to the brake disc body using multiple bolts, which is cumbersome.

[0006] To this end, a carbon-ceramic brake disc with high heat dissipation is proposed. Utility Model Content

[0007] The purpose of the utility model is to provide a carbon-ceramic brake disc with high heat dissipation, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems existing in the prior art.

[0008] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0009] A carbon-ceramic brake disc with high heat dissipation comprises a carbon-ceramic brake disc body and a connecting piece, wherein the carbon-ceramic brake disc body is arranged in an annular shape, and the connecting piece comprises an externally threaded sleeve and a fixing nut, an annular plate is fixedly connected to the bottom of the externally threaded sleeve, an annular mounting disc is fixedly connected to the top of the externally threaded sleeve, a plurality of mounting holes for connecting to an axle are provided on the annular mounting disc, the carbon-ceramic brake disc body is sleeved on the externally threaded sleeve, the fixing nut is threadedly mounted on the externally threaded sleeve, the carbon-ceramic brake disc body is pressed against the annular plate by the fixing nut, and a locking piece for preventing the fixing nut from loosening is installed on the annular mounting disc.

[0010] In the high heat dissipation carbon-ceramic brake disc according to the utility model, the locking piece includes an elastic sheet and a pawl, one end of the elastic sheet is fixedly welded to the outer wall of the annular mounting disc, one end of the pawl is rotatably connected to the top of the external threaded sleeve, a step groove is provided at the upper end of the inner wall of the fixing nut, and a ratchet is provided on the inner wall of the step groove, and the end of the pawl away from the external threaded sleeve can resist the ratchet rotating in the opposite direction under the elastic force of the movable end of the elastic sheet.

[0011] In the carbon-ceramic brake disc with high heat dissipation according to the utility model, an anti-skid groove is provided on the outer wall of the fixing nut.

[0012] In the carbon-ceramic brake disc with high heat dissipation according to the utility model, an annular mounting groove is opened at the bottom of the carbon-ceramic brake disc body, and the annular plate is inserted into the annular mounting groove, so that the bottom of the carbon-ceramic brake disc body and the bottom of the annular plate are in the same plane.

[0013] In the carbon-ceramic brake disc with high heat dissipation according to the utility model, a groove is provided on the outer wall of the annular plate, and a clamping block is provided on the inner wall of the annular mounting groove. After the annular plate is inserted into the annular mounting groove, the clamping block is clamped into the groove.

[0014] In the carbon-ceramic brake disc with high heat dissipation according to the utility model, a first heat dissipation hole is opened inside the carbon-ceramic brake disc body, a second heat dissipation hole is opened on the top of the carbon-ceramic brake disc body, and a through hole connected to the first heat dissipation hole is opened at the lower end of the external threaded sleeve.

[0015] The utility model has at least the following beneficial effects:

[0016] The utility model can realize the rapid connection of the carbon ceramic brake disc body through the connecting piece composed of the external thread sleeve, the annular mounting disc, the annular plate and the fixing nut;

[0017] The locking piece can effectively prevent the fixing nut from rotating in the opposite direction due to vibration, thereby causing the fixing nut to loosen;

[0018] By opening the first heat dissipation hole and the second heat dissipation hole on the carbon-ceramic brake disc body, it can be effectively ensured that the carbon-ceramic brake disc body can dissipate the heat generated by braking to the outside in time. At the same time, through the set through hole, the end of the first heat dissipation hole close to the external threaded sleeve can be connected to the outside, further improving the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of the carbon ceramic brake disc with high heat dissipation of the utility model;

[0021] Figure 2 A schematic structural diagram of the carbon-ceramic brake disc with high heat dissipation of the utility model from another perspective;

[0022] Figure 3 for Figure 1 A schematic diagram of the enlarged structure of part A;

[0023] Figure 4 It is a schematic diagram of the local structure of the installation component of the utility model;

[0024] Figure 5 It is a structural schematic diagram of the fixing nut of the utility model;

[0025] Figure 6 It is a structural schematic diagram of the carbon ceramic brake disc body of the utility model.

[0026] Description of Figure Numbers:

[0027] 1. Carbon ceramic brake disc body; 101. Annular mounting groove; 102. Clamp block; 103. First heat dissipation hole; 104. Second heat dissipation hole;

[0028] 2. Connecting piece; 201. External thread sleeve; 202. Ring mounting plate; 203. Mounting hole; 204. Through hole; 205. Slot; 206. Ring plate;

[0029] 3. Fixing nut; 301. Step groove; 302. Ratchet; 303. Anti-slip groove;

[0030] 4. Ratchet; 5. Elastic sheet. DETAILED DESCRIPTION

[0031] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0032] Please refer to Figures 1 to 6 As shown, the present embodiment provides a carbon-ceramic brake disc with high heat dissipation, a carbon-ceramic brake disc body 1 and a connecting piece 2, the carbon-ceramic brake disc body 1 is arranged in a ring shape, a first heat dissipation hole 103 is opened inside the carbon-ceramic brake disc body 1, and a second heat dissipation hole 104 is opened on the top of the carbon-ceramic brake disc body 1, wherein some of the second heat dissipation holes 104 are arranged with the first heat dissipation holes 103, and other second heat dissipation holes 104 are directly arranged through the carbon-ceramic brake disc body 1, so that the carbon-ceramic brake disc body 1 can dissipate the heat generated by braking to the outside in time.

[0033] The carbon ceramic brake disc body 1 is mainly composed of carbon fiber and ceramic materials, specifically, carbon fiber reinforced silicon carbide composite materials. This composite material has many excellent physical properties, which enables the carbon ceramic brake disc to maintain excellent heat dissipation and stability at high temperatures. The preparation mainly includes the following steps:

[0034] Mixing and pressing: After the carbon fiber powder and thermoplastic molding resin are fully mixed, they are poured into the brake disc mold and compacted under high pressure.

[0035] High temperature treatment: The initially formed brake disc blank needs to undergo high temperature treatment, including long-term baking in a high-temperature oven and adding silicon to melt siliconize the blank, so that the silicon powder becomes liquid and is absorbed into the carbon fiber brake disc blank to form silicon carbide.

[0036] Anti-oxidation treatment: In order to improve the anti-oxidation performance of carbon-ceramic brake discs, anti-oxidation treatment is also required to prevent the rapid oxidation of the brake disc by oxygen at high temperatures.

[0037] It has the following performance advantages:

[0038] High heat dissipation: Carbon ceramic brake discs have high thermal conductivity and can dissipate heat faster, thereby reducing the thermal decay of the brake system during high-speed driving or emergency braking.

[0039] High temperature resistance: Carbon ceramic brake discs can maintain stable performance at extremely high temperatures and will not experience severe thermal decay at high temperatures like traditional brake discs.

[0040] Wear-resistant and corrosion-resistant: Carbon-ceramic brake discs are relatively wear-resistant and corrosion-resistant, providing longer service life and lower maintenance costs.

[0041] Lightweight: Carbon ceramic brake discs are lighter than traditional brake discs of the same volume, helping to reduce the overall vehicle weight, improve fuel efficiency and handling.

[0042] The connecting member 2 includes an external threaded sleeve 201 and a fixing nut 3. The bottom of the external threaded sleeve 201 is fixedly connected with an annular plate 206. The top of the external threaded sleeve 201 is fixedly connected with an annular mounting disk 202. The annular mounting disk 202 is provided with a plurality of mounting holes 203 for connecting with the axle. The carbon-ceramic brake disc body 1 is sleeved on the external threaded sleeve 201. The fixing nut 3 is threadedly installed on the external threaded sleeve 201. The carbon-ceramic brake disc body 1 is pressed against the annular plate 206 by the fixing nut 3. The bottom of the carbon-ceramic brake disc body 1 is provided with an annular mounting groove 101. The annular plate 206 is inserted into the annular mounting groove 101, so that the bottom of the carbon-ceramic brake disc body 1 and the bottom of the annular plate 206 are in the same plane, thereby reducing the volume of the entire carbon-ceramic brake disc. In order to ensure the connection strength between the carbon-ceramic brake disc body 1 and the external threaded sleeve 201, the outer wall of the annular plate 206 is provided with a slot 205, and the inner wall of the annular mounting groove 101 is provided with a clamping block 102. After the annular plate 206 is inserted into the annular mounting groove 101, the clamping block 102 is clamped into the slot 205 to prevent the carbon-ceramic brake disc body 1 from rotating relative to the external threaded sleeve 201.

[0043] Among them, a locking piece for preventing the fixing nut 3 from loosening is installed on the annular mounting disk 202, wherein the locking piece includes an elastic sheet 5 and a pawl 4, one end of the elastic sheet 5 is fixedly welded to the outer wall of the annular mounting disk 202, one end of the pawl 4 is rotatably connected to the top of the external threaded sleeve 201, a step groove 301 is provided at the upper end of the inner wall of the fixing nut 3, and a ratchet 302 is provided on the inner wall of the step groove 301, and the end of the pawl 4 away from the external threaded sleeve 201 can resist the reverse rotating ratchet 302 under the elastic force of the movable end of the elastic sheet 5.

[0044] Working principle: During installation, the carbon-ceramic brake disc body 1 is sleeved on the external threaded sleeve 201, and the annular plate 206 is inserted into the annular mounting groove 101, and the clamping block 102 is clamped into the clamping groove 205, and then the fixing nut 3 is threadedly installed on the external threaded sleeve 201, so that the fixing nut 3 presses the carbon-ceramic brake disc body 1 firmly on the annular plate 206. In the process of tightening the fixing nut 3, the pawl 4 will be pressed downward by the ratchet 302, so that the fixing nut 3 can rotate smoothly. When the fixing nut 3 is about to reverse due to vibration during driving in the car, the pawl 4 will press against the ratchet 302 under the elastic force of the elastic sheet 5, effectively preventing the fixing nut 3 from rotating in the opposite direction. In addition, during driving in the car, the pawl 4 will rotate rapidly with the wheel, and the centrifugal force generated will also press the pawl 4 firmly against the ratchet 302, further preventing the fixing nut 3 from reversing.

[0045] Specifically, in order to facilitate the rotation of the fixing nut 3 , an anti-slip groove 303 is provided on the outer wall of the fixing nut 3 .

[0046] Specifically, a through hole 204 connected to the first heat dissipation hole 103 is opened at the lower end of the external threaded sleeve 201. Through the set through hole 204, the end of the first heat dissipation hole 103 close to the external threaded sleeve 201 can be connected to the outside world, so that the outside air is connected to the inside of the first heat dissipation hole 103, further improving the heat dissipation effect of the carbon-ceramic brake disc body 1.

[0047] The above description shows and describes several preferred embodiments of the utility model, but as mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. Carbon ceramic brake disc with high heat dissipation, characterized by: The invention comprises a carbon ceramic brake disc body (1) and a connecting piece (2), wherein the carbon ceramic brake disc body (1) is arranged in an annular shape, and the connecting piece (2) comprises an externally threaded sleeve (201) and a fixing nut (3), the bottom of the externally threaded sleeve (201) is fixedly connected to an annular plate (206), the top of the externally threaded sleeve (201) is fixedly connected to an annular mounting plate (202), the annular mounting plate (202) is provided with a plurality of mounting holes (203) for connecting to an axle, the carbon ceramic brake disc body (1) is sleeved on the externally threaded sleeve (201), the fixing nut (3) is threadedly mounted on the externally threaded sleeve (201), the carbon ceramic brake disc body (1) is pressed against the annular plate (206) by the fixing nut (3), and the annular mounting plate (202) is provided with a locking piece for preventing the fixing nut (3) from loosening.

2. The carbon ceramic brake disc with high heat dissipation according to claim 1, characterized in that: The locking member comprises an elastic sheet (5) and a pawl (4); one end of the elastic sheet (5) is fixedly welded to the outer wall of the annular mounting plate (202); one end of the pawl (4) is rotatably connected to the top of the external threaded sleeve (201); a step groove (301) is provided at the upper end of the inner wall of the fixing nut (3); a ratchet (302) is provided on the inner wall of the step groove (301); and one end of the pawl (4) away from the external threaded sleeve (201) can resist the ratchet (302) rotating in the opposite direction under the elastic force of the movable end of the elastic sheet (5).

3. The carbon-ceramic brake disc with high heat dissipation according to claim 1, characterized in that: An anti-slip groove (303) is formed on the outer wall of the fixing nut (3).

4. The carbon ceramic brake disc with high heat dissipation according to claim 2, characterized in that: The bottom of the carbon-ceramic brake disc body (1) is provided with an annular mounting groove (101), and the annular plate (206) is inserted into the annular mounting groove (101), so that the bottom of the carbon-ceramic brake disc body (1) and the bottom of the annular plate (206) are in the same plane.

5. The carbon ceramic brake disc with high heat dissipation according to claim 4, characterized in that: The outer wall of the annular plate (206) is provided with a clamping groove (205), and the inner wall of the annular installation groove (101) is provided with a clamping block (102); after the annular plate (206) is inserted into the annular installation groove (101), the clamping block (102) is clamped into the clamping groove (205).

6. The carbon ceramic brake disc with high heat dissipation according to claim 5, characterized in that: A first heat dissipation hole (103) is provided inside the carbon-ceramic brake disc body (1), a second heat dissipation hole (104) is provided on the top of the carbon-ceramic brake disc body (1), and a through hole (204) connected to the first heat dissipation hole (103) is provided at the lower end of the external threaded sleeve (201).

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