Full-floating brake disc with high brake performance

Abstract

The utility model discloses a full-floating brake disc with high brake performance, and belongs to the technical field of brake discs. The disc comprises a disc body, a disc hub and a connecting piece, a first gap is formed between the disc body and the disc hub, the first gap enables the disc body to move relative to the disc hub in the circumferential direction, and the disc body is connected with the disc hub through the connecting piece. According to the brake disc, by arranging the first gap, the disc body can move relative to the disc hub in the circumferential direction, deformation and stress generated under the high-strength braking condition are effectively relieved, and the stability and the braking performance of the brake disc are remarkably improved.

Description

Technical Field

[0001] The present application relates to the technical field of brake discs, and in particular to a fully floating brake disc with high braking performance. Background Art

[0002] At present, conventional motorcycle brake discs on the market are generally made of aluminum alloy, cast iron or stainless steel, with cast iron being the main material. Aluminum alloy and stainless steel brake discs are prone to deformation under high temperature and high-intensity braking conditions, which can lead to failure of the brake system; cast iron brake discs are prone to rust. Although they are not easy to deform, their friction coefficient will decay to a certain extent under high temperature and high-speed braking, resulting in reduced braking performance.

[0003] In the related art, the patent publication number CN216812607U discloses a highly efficient heat dissipation semi-floating brake disc. It includes a carbon-ceramic brake disc body and a joint head semi-floatingly connected to the carbon-ceramic brake disc body, the carbon-ceramic brake disc body is provided with ribs, the ribs are provided with oblique ventilation holes, the side walls of the carbon-ceramic brake disc body are provided with ventilation grooves, the disc surface on the carbon-ceramic brake disc body is provided with ventilation holes connected to the ventilation grooves, the joint head is connected to the carbon-ceramic brake disc body by bolts, and a gasket is provided between the joint head and the carbon-ceramic brake disc body. The carbon-ceramic brake disc body and the joint head are semi-floatingly connected, and the carbon-ceramic brake disc body and the joint head can slide along the radial direction of the carbon-ceramic brake disc body for a certain distance to alleviate the deformation of the carbon-ceramic brake disc body caused by high temperature.

[0004] Regarding the above-mentioned related technologies, carbon-ceramic brake discs are more fragile than iron brake discs and are easily broken or damaged by external impact and excessive use. Carbon-ceramic brake discs may produce instantaneous circumferential tensile deformation under very large braking conditions, and the circumferential tensile deformation can easily make the carbon-ceramic brake discs easily damaged. Utility Model Content

[0005] In order to make the brake disc have better braking performance while reducing the risk of damage to the brake disc, the present application provides a high braking performance fully floating brake disc.

[0006] The present application provides a high braking performance fully floating brake disc adopting the following technical solution:

[0007] A fully floating brake disc with high braking performance comprises a disc body, a disc hub and a connecting piece, wherein a first gap is provided between the disc body and the disc hub, wherein the first gap enables the disc body to move relative to the disc hub in the circumferential direction, and the disc body is connected to the disc hub via the connecting piece.

[0008] By adopting the above technical solution, when the brake pad acts on the disc body under very large braking conditions, there will be instantaneous tensile deformation between the disc body and the disc hub in the circumferential direction. Due to the existence of the first gap, the disc body can move to a certain extent relative to the disc hub in the circumferential direction. This movement can compensate for the tensile deformation, thereby reducing the deformation of the disc body and relieving stress, reducing the risk of damage to the disc body, and improving the stability and braking performance of the brake disc.

[0009] Optionally, a semi-connecting groove is provided on one side of the disk body and the disk hub that are close to each other, and the two semi-connecting grooves are combined to form a connecting hole for installing the connecting member, and the first gap is connected to the connecting hole.

[0010] By adopting the above technical solution, this structure can facilitate the installation of the connecting parts and ensure that there is enough movable space between the disc body and the disc hub for stress relief.

[0011] Optionally, the disk body is movable in radial direction relative to the disk hub.

[0012] By adopting the above technical solution, this arrangement further enhances the floatability of the brake disc, which is beneficial to alleviating various stresses such as high temperature stress generated during the braking process.

[0013] Optionally, the connecting member includes a connecting shaft and an end head, the connecting shaft is inserted into the connecting hole, the end head is fixed to the end of the connecting shaft, and the end face of the end head abuts against the side surfaces of the disk body and the disk hub.

[0014] By adopting the above technical solution, such a connection structure not only ensures the stability of the connection, but also allows the disc body to have a certain degree of freedom of movement relative to the disc hub.

[0015] Optionally, a first connecting portion is provided on the inner side of the disk body, and the disk body is connected to the disk hub via the first connecting portion, and a thickness of the first connecting portion is not equal to a thickness of the disk hub.

[0016] By adopting the above technical solution, the disc hub can be displaced to a certain extent in the axial direction relative to the disc body, thereby compensating for possible displacement and deformation perpendicular to the friction surface of the disc body.

[0017] Optionally, the disc hub includes an axle connecting ring and a second connecting portion, wherein the second connecting portion is arranged on the outer periphery of the axle connecting ring, and the second connecting portion is connected to the disc body via a connecting piece.

[0018] By adopting the above technical solution, this structural design enables the disc hub to be stably connected to the axle and to be stably connected to the disc body through the second connecting portion.

[0019] Optionally, the size of the second connecting portion gradually decreases in the direction from the axle connecting ring to the disc body.

[0020] By adopting the above technical solutions, this gradual design can reduce the overall weight while ensuring structural strength.

[0021] Optionally, a weight-reducing hole is provided in the second connecting portion.

[0022] By adopting the above technical solution, the design of the weight-reducing hole further reduces the weight of the brake disc, which is beneficial to improving the braking response speed and economy.

[0023] Optionally, the disc body is made of carbon ceramic material.

[0024] By adopting the above technical solution, the carbon ceramic material has excellent high temperature stability and wear resistance, which can significantly improve the service life and performance of the brake disc.

[0025] Optionally, the fully floating brake disc is used on a motorcycle.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. By setting the first gap, the disc body can move relative to the disc hub in the circumferential direction, effectively alleviating the deformation and stress caused by high temperature and high-intensity braking conditions, and significantly improving the stability and braking performance of the brake disc.

[0028] 2. By using carbon ceramic material as the disc body and taking advantage of its excellent high-temperature stability and wear resistance, the service life and performance of the brake disc under high-temperature and high-intensity braking conditions are further improved.

[0029] 3. By optimizing the design of the connecting parts and the connecting structure, the stability of the brake disc is ensured and its floating performance is enhanced, thereby improving the adaptability of the brake disc under various braking conditions.

[0030] 4. By opening a weight-reducing hole at the second connection part, the weight of the brake disc is reduced, which is beneficial to improving the braking response speed and economy without sacrificing structural strength and service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0032] Figure 2 yes Figure 1 Enlarged schematic diagram of part A.

[0033] Figure 3 It is a cross-sectional view of the overall structure of the application embodiment.

[0034] Figure 4 yes Figure 3 Schematic diagram of the enlarged portion B.

[0035] Description of reference numerals:

[0036] 10. disc body; 11. first connecting part; 20. disc hub; 21. axle connecting ring; 211. through hole; 212. threaded hole; 22. second connecting part; 221. weight-reducing hole; 30. connecting piece; 31. connecting shaft; 32. end; 40. first gap; 41. second gap; 50. semi-connecting groove. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-4 This application is described in further detail.

[0038] like Figure 1 As shown, a fully floating brake disc with high braking performance provided in an embodiment of the present application includes a disc body 10 , a disc hub 20 and a connecting member 30 .

[0039] The disc body 10 is a component used in conjunction with the brake pad to provide braking performance. In this embodiment, the disc body 10 is made of carbon ceramic material, which can provide good braking performance and high anti-friction coefficient attenuation performance, and will not rust or deform. In addition, the surface of the disc body 10 can also be coated as required, and the coating can be a resin-bonded silicon carbide coating to further provide higher and better braking performance.

[0040] Reference Figure 1 and Figure 2 In this embodiment, the disc body 10 is annular, and a first connection portion 11 is connected to the inner side of the disc body 10. The disc body 10 and the first connection portion 11 can be integrally formed or welded. The thickness of the first connection portion 11 is equal to or slightly less than the thickness of the disc body 10, and the size of the first connection portion 11 gradually decreases from the outer side to the center of the disc body 10. At the same time, a plurality of first connection portions 11 are arranged at intervals along the circumference of the disc body 10 to reduce the overall weight of the brake disc.

[0041] Reference Figure 1 The hub 20 includes an axle connecting ring 21 and a second connecting portion 22 . The axle connecting ring 21 has a through hole 211 at the center and threaded holes 212 on the circumference. The axle connecting ring 21 is detachably connected to the axle through the through hole 211 and the threaded holes 212 .

[0042] The second connection portion 22 is connected to the outer periphery of the axle connection ring 21. Preferably, the second connection portion 22 is integrally formed with the axle connection ring 21. It is worth mentioning that the size of the second connection portion 22 gradually decreases from the axle connection ring 21 to the disc body 10 to form a structural shape with a triangular cross section. This design is intended to achieve a balance between structural strength and weight.

[0043] At the same time, a weight-reducing hole 221 is also provided in the second connecting portion 22. Preferably, the weight-reducing hole 221 is arranged in a triangular shape. In other embodiments, the weight-reducing hole 221 may also be circular or in other irregular shapes. The design of the triangular weight-reducing hole 221 not only improves the braking response speed, but also helps to improve the economy, without sacrificing the structural strength and service life of the brake disc.

[0044] Reference Figure 1 and Figure 2 , wherein a first gap 40 is provided between the first connection portion 11 and the second connection portion 22, and a half connection groove 50 is provided on the side where the first connection portion 11 and the second connection portion 22 are close to each other. When the two half connection grooves 50 are combined together, the two half connection grooves 50 will form a complete connection hole, and the first gap 40 connects the opposite sides of the connection hole, and a connecting member 30 is installed in the connection hole, and the connecting member 30 is used to limit the large movement of the disk body 10 and the disk hub 20 in the circumferential, radial and axial directions. Preferably, the distance of the first gap 40 can be 0.1mm-0.3mm.

[0045] Reference Figure 3 and Figure 4 In this embodiment, the connecting member 30 includes a connecting shaft 31 and an end 32. The connecting member 30 may be a circular rivet before riveting, and the connecting shaft 31 and the end 32 are formed after riveting. This method can improve the manufacturing efficiency. In other embodiments, the connecting shaft 31 and the end 32 may also be fixed by welding.

[0046] The connecting shaft 31 is inserted into the connecting hole, and the end head 32 is fixed to the end of the connecting shaft 31, and its end face abuts against the side surfaces of the first connecting portion 11 and the second connecting portion 22. This connection method not only ensures the stability of the brake disc, but also allows the disc body 10 to move appropriately relative to the disc hub 20 when necessary, thereby effectively relieving various stresses.

[0047] Among them, the shaft diameter of the connecting shaft 31 is slightly smaller than the aperture of the connecting hole. Under the action of the first gap 40, the disc body 10 can be displaced to a certain extent in the circumferential direction and radial direction relative to the disc hub 20, thereby effectively alleviating the deformation and stress that may be caused by high temperature and high-intensity braking conditions, and improving the stability and braking performance of the brake disc.

[0048] At the same time, the thickness of the first connection part 11 is not equal to the thickness of the second connection part 22. In this embodiment, the thickness of the second connection part 22 is less than 0.1 mm of the thickness of the first connection part 11, so that the first connection part 11 and the end head 32 fit tightly, and there is a second gap 41 between the axial side of the second connection part 22 and the end head 32. The second gap 41 enables the disc body 10 to be displaced to a certain extent in the axial direction relative to the disc hub 20. The displacement can compensate for the possible displacement and deformation perpendicular to the friction surface of the disc body 10, so as to further extend the service life of the brake disc. In other embodiments, the thickness of the second connection part 22 can be greater than the thickness of the first connection part 11, so that the disc body 10 and the disc hub 20 can be displaced to a certain extent in the axial direction.

[0049] In addition, the hub 20 and the connector 30 are both made of stainless steel, which is cheaper than carbon ceramics and can be used for a long time without rusting, and can meet the daily use of the brake disc. At the same time, the brake disc can be used on a motorcycle to improve the braking performance and braking stability of the motorcycle.

[0050] In summary, the present application realizes a high-braking-performance fully-floating brake disc that is both stable and highly floating through a series of ingenious designs and material selections, which significantly improves braking performance and stability while extending service life.

[0051] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fully floating brake disc with high braking performance, characterized in that: The invention comprises a disc body (10), a disc hub (20) and a connecting piece (30); a first gap (40) is provided between the disc body (10) and the disc hub (20); the first gap (40) enables the disc body (10) to move relative to the disc hub (20) in the circumferential direction; and the disc body (10) is connected to the disc hub (20) via the connecting piece (30).

2. A fully floating brake disc with high braking performance according to claim 1, characterized in that: A semi-connecting groove (50) is provided on one side of the disk body (10) and the disk hub (20) close to each other, and the two semi-connecting grooves (50) are combined to form a connecting hole for installing the connecting member (30), and the first gap (40) is connected to the connecting hole.

3. A fully floating brake disc with high braking performance according to claim 2, characterized in that: The disk body (10) is movable relative to the disk hub (20) in the radial direction.

4. A fully floating brake disc with high braking performance according to claim 2, characterized in that: The connecting member (30) comprises a connecting shaft (31) and an end head (32); the connecting shaft (31) is inserted into the connecting hole; the end head (32) is fixed to the end of the connecting shaft (31); and the end surface of the end head (32) abuts against the side surfaces of the disk body (10) and the disk hub (20).

5. A fully floating brake disc with high braking performance according to claim 4, characterized in that: A first connection portion (11) is provided on the inner side of the disk body (10), and the disk body (10) is connected to the disk hub (20) via the first connection portion (11), and the thickness of the first connection portion (11) is not equal to the thickness of the disk hub (20).

6. A fully floating brake disc with high braking performance according to claim 1, characterized in that: The disc hub (20) comprises an axle connecting ring (21) and a second connecting portion (22), wherein the second connecting portion (22) is arranged on the outer periphery of the axle connecting ring (21), and the second connecting portion (22) is connected to the disc body (10) via a connecting piece (30).

7. A fully floating brake disc with high braking performance according to claim 6, characterized in that: The size of the second connection portion (22) gradually decreases in a direction from the axle connection ring (21) to the disc body (10).

8. A fully floating brake disc with high braking performance according to claim 6, characterized in that: A weight-reducing hole (221) is provided in the second connecting portion (22).

9. A fully floating brake disc with high braking performance according to claim 1, characterized in that: The material of the disc body (10) is carbon ceramic material.

10. A fully floating brake disc with high braking performance according to claim 1, characterized in that: The fully floating brake disc is applied to motorcycles.

Images