Brake assembly, brake disc, wheel and vehicle

Abstract

The utility model discloses a brake assembly, a brake disc, a wheel and a vehicle, relates to the technical field of braking, and aims to solve the problem of how to reduce eccentric wear of the brake disc and a disc cap. The brake assembly comprises a disc cap, a connecting assembly and an elastic piece, the connecting assembly is connected to the disc cap, the elastic piece comprises a radial floating part, the radial floating part is arranged between the disc cap and the connecting assembly in the radial direction of the disc cap, and the radial floating part can elastically deform in the radial direction of the disc cap.

Description

Technical Field

[0001] The utility model relates to the technical field of braking, in particular to a braking assembly, a brake disc, a wheel and a vehicle. Background Art

[0002] During the braking process of a vehicle, the driver steps on the brake pedal, and the friction plate inside the vehicle moves and presses against the brake disc of the wheel to clamp the brake disc, thereby generating a frictional torque that prevents the wheel from rotating, and thus achieving braking.

[0003] The brake disc is usually connected to the disc cap of the wheel through a connecting assembly. In some braking scenarios, such as multiple consecutive brakings or extreme working condition scenarios, the brake disc will be skewed radially relative to the disc cap, which easily causes uneven wear between the brake disc and the disc cap, resulting in mechanical damage to the brake disc or generating noise, affecting the user experience and shortening the service life of the brake disc. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a braking assembly, a brake disc, a wheel and a vehicle, aiming to solve the problem of how to reduce the uneven wear between the brake disc and the disc cap.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] In a first aspect, the utility model provides a braking assembly. The elastic member includes a disc cap, a connecting assembly and an elastic member. The connecting assembly is connected to the disc cap. The elastic member includes a radially floating portion. Along the radial direction of the disc cap, the radially floating portion is disposed between the disc cap and the connecting assembly and is elastically deformable along the radial direction of the disc cap.

[0007] In this way, during the braking process, the brake disc has a radial floating margin relative to the disc cap, so as to avoid uneven wear between the brake disc and the disc cap after the brake disc is skewed radially relative to the disc cap, thereby reducing the mechanical damage suffered by the brake disc, avoiding the generation of noise, and prolonging the service life of the brake disc.

[0008] Optionally, the elastic deformation amount of the radially floating portion along the radial direction of the disc cap is greater than or equal to 0.05 mm and less than or equal to 0.9 mm. In this way, the requirement of the radial floating amount can be met, and at the same time, the structural compactness can be ensured.

[0009] Optionally, the radially floating portion includes at least one elastic portion, and the elastic portion is elastically deformable along the radial direction of the disc cap.

[0010] Optionally, the elastic portion is elastically deformable along the radial direction of the disc cap in a direction away from the center of the disc cap; or, the elastic portion is elastically deformable along the radial direction of the disc cap in a direction away from the center of the disc cap.

[0011] Optionally, the elastic part includes a bending section that arches towards the center of the disc cap, enabling the elastic part to be elastically deformable in the radial direction of the disc cap away from the center of the disc cap. Alternatively, the bending section arches away from the center of the disc cap, enabling the elastic part to be elastically deformable in the radial direction of the disc cap towards the center of the disc cap.

[0012] Optionally, the radial floating part includes at least one first elastic part and at least one second elastic part that are alternately arranged in sequence along the circumferential direction of the disc cap. The first elastic part includes a first bending section that arches towards the center of the disc cap. The second elastic part includes a second bending section that arches away from the center of the disc cap.

[0013] Optionally, the number of the first elastic parts is two, and the number of the second elastic parts is one. Along the circumferential direction of the disc cap, one second elastic part is located between the two first elastic parts.

[0014] Optionally, the shapes of the first bending section and the second bending section in the first cross-section are arc-shaped, peak-shaped, Λ-shaped, Ω-shaped, or П-shaped. Among them, the first cross-section is perpendicular to the axial direction of the disc cap.

[0015] Optionally, the radial floating part is located on the side of the connecting component facing the center of the disc cap.

[0016] Optionally, the disc cap is provided with a mounting hole, and the connecting component passes through the mounting hole. The radial floating part is arranged between the edge of the mounting hole close to the center of the disc cap and the connecting component.

[0017] Optionally, the elastic member further includes two connecting parts; the two connecting parts are arranged at intervals along the circumferential direction of the disc cap, and the radial floating part is connected between the ends of the two connecting parts facing the center of the disc cap. Each connecting part is provided with an axial floating part, and the axial floating part is arranged between the disc cap and the connecting component and is elastically deformable along the axial direction of the disc cap.

[0018] Optionally, the number of the axial floating parts provided on each connecting part is two, and the two axial floating parts are respectively connected to the two ends of the connecting part in the axial direction of the disc cap.

[0019] Optionally, the thickness of the axial floating part is greater than or equal to 0.4 mm and less than or equal to 0.8 mm.

[0020] Optionally, the end of the connecting part facing the center of the disc cap is the first end. The end of the connecting part facing away from the center of the disc cap is the second end. Along the radial direction of the disc cap, the shortest distance from the second bending section to the second end is the first distance, and the maximum distance from the first bending section to the first end is the second distance. The value of the first distance to the second distance is greater than or equal to 3.72 and less than or equal to 22.54.

[0021] Optionally, on one of the two connecting parts, a first limiting part is provided on the surface facing away from the other connecting part. The first limiting part is used to cooperate with the disc cap to prevent the elastic part from separating from the disc cap in the radial direction of the disc cap.

[0022] Optionally, the first limiting part is a limiting rib.

[0023] Optionally, the protruding height of the first limiting part is a first height, and the length of the connecting part in the circumferential direction of the disc cap is a first length. The ratio of the first height to the first length is greater than or equal to 1 / 6 and less than or equal to 1 / 3.

[0024] Optionally, on one of the two axial floating parts provided on each connecting part, a second limiting part is provided on the surface facing the other axial floating part. The second limiting part is used to cooperate with the disc cap to prevent the elastic part from separating from the disc cap in the radial direction of the disc cap.

[0025] Optionally, the second limiting part is a limiting rib.

[0026] Optionally, the protruding height of the second limiting part is a second height. The distance between the two axial floating parts provided on each connecting part is a third distance. The ratio of the second height to the third distance is greater than or equal to 1 / 6 and less than or equal to 1 / 3.

[0027] Optionally, the elastic part includes at least one of a steel elastic part, an iron elastic part, an aluminum alloy elastic part, and a ceramic elastic part.

[0028] In a second aspect, a brake disc is provided. The brake disc includes the braking assembly and the brake disc described in any of the above technical solutions, and the brake disc is connected to the connecting assembly of the braking assembly.

[0029] Since the brake disc provided in the present application includes the elastic part described in any of the above technical solutions, the two can solve the same problems and achieve the same effects.

[0030] In a third aspect, a wheel is provided. The wheel includes a wheel hub and the brake disc described in the above technical solution, and the disc cap is fixed to the wheel hub and coaxially arranged with the wheel hub.

[0031] Since the wheel provided in the present application includes the brake disc described in the above technical solution, the two can solve the same problems and achieve the same effects.

[0032] In a fourth aspect, a vehicle is provided. The vehicle includes a vehicle body and the wheel described in the above technical solution, and the wheel is connected to the vehicle body.

[0033] Since the vehicle provided in the present application includes the wheel described in the above technical solution, the two can solve the same problems and achieve the same effects. Description of the Drawings

[0034] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0035] Figure 1 Structural schematic diagram of a vehicle provided by some embodiments of the present application;

[0036] Figure 2 Exploded structural schematic diagram of a brake disc provided by some embodiments of the present application;

[0037] Figure 3 For Figure 2 Top view of the assembly structure of the braking component in the brake disc shown;

[0038] Figure 4 Structural schematic diagram of an elastic member provided by some embodiments of the present application;

[0039] Figure 5 Structural schematic diagram of an elastic member provided by some other embodiments of the present application;

[0040] Figure 6 Structural schematic diagram of an elastic member provided by some other embodiments of the present application.

[0041] Reference numerals:

[0042] 100, vehicle;

[0043] 10, vehicle body; 20, wheel; 201, hub; 202, braking component; 203, friction component;

[0044] 1, disc cap; 11, mounting hole; 2, brake disc; 21, through hole;

[0045] 3, connecting component; 31, bolt; 32, limiting sleeve; 321, middle part; 322, first stop part; 323, second stop part; 33, nut;

[0046] 4, elastic member; 41, radial floating part; 411, first elastic part; 412, second elastic part; 42, connecting part; 43, axial floating part; 44, first limiting part; 45, second limiting part;

[0047] 5 - auxiliary elastic member. Detailed implementation manners

[0048] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0049] The terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0050] This application provides a vehicle, which includes but is not limited to an electric vehicle, a fuel vehicle, or a hybrid vehicle.

[0051] Please refer to Figure 1 , Figure 1 which is a schematic structural diagram of the vehicle 100 provided in some embodiments of this application. The vehicle 100 includes a vehicle body 10 and wheels 20. The wheels 20 are connected to the vehicle body 10 and are used to realize the function of vehicle driving.

[0052] Please continue to refer to Figure 1 , the wheel 20 may include a wheel hub 201, a brake disc 202, and a friction assembly 203. The brake disc 202 is fixedly connected to the wheel hub 201 and is coaxially arranged with the wheel hub 201. During the rotation of the wheel hub 201, the brake disc 202 can be driven to rotate.

[0053] The friction assembly 203 is disposed on the brake disc 202. During the braking process of the vehicle, the driver steps on the brake pedal, and the friction assembly 203 moves and presses against the brake disc 202 to clamp the brake disc 202, thereby generating a frictional torque that prevents the wheel 20 from rotating, thereby realizing braking.

[0054] Next, the structure of the brake disc 202 will be introduced in detail.

[0055] Please refer to Figure 2 , Figure 2 which is an exploded structural diagram of the brake disc 202 provided in some embodiments of this application. The brake disc 202 includes a disc cap 1, a brake disc 2, a connecting component 3, and an elastic member 4. Among them, the disc cap 1, the connecting component 3, and the elastic member 4 form a braking component. Please refer to Figure 3 , Figure 3 which is Figure 2 a top view of the assembled structure of the braking component in the brake disc 202 shown.

[0056] Refer toFigure 1 in combination with Figure 2 when the brake disc 202 is applied to the Figure 1 wheel 20 shown in the figure, the disc cap 1 is fixed to the hub 201, and the disc cap 1 and the hub 201 are coaxially arranged. The connecting assembly 3 is connected to the disc cap 1, and the brake disc 2 is connected to the connecting assembly 3 so as to be connected to the disc cap 1 by means of the connecting assembly 3. During the braking process of the vehicle, the friction assembly 203 can specifically press against the brake disc 2 of the brake disc 202 to achieve the braking of the wheel 20.

[0057] In some embodiments, please continue to refer to Figure 2 the disc cap 1 is provided with a mounting hole 11, and the connecting assembly 3 passes through the mounting hole 11 and is connected to the disc cap 1.

[0058] In some embodiments, please continue to refer to Figure 2 the connecting assembly 3 may include a connecting member and a limiting sleeve 32. The disc cap 1 is provided with a mounting hole 11. The limiting sleeve 32 may include a middle portion 321 and a first stop portion 322 and a second stop portion 323 respectively connected to both ends of the middle portion 321 along the axial direction of the disc cap 1. The middle portion 321 passes through the mounting hole 11, and the first stop portion 322 and the second stop portion 323 are respectively arranged on opposite sides of the disc cap 1. The first stop portion 322 and the second stop portion 323 are used to prevent the limiting sleeve 32 from separating from the disc cap 1 along the axial direction of the disc cap 1.

[0059] The connecting member is connected to the limiting sleeve 32, and the brake disc 2 is connected to the connecting member.

[0060] In some embodiments, the connecting member may include a bolt 31 and a nut 33. The brake disc 2 is provided with a through hole 21. The bolt 31 passes through the through hole 21 and the limiting sleeve 32, and the limiting sleeve 32 and the brake disc 2 are fixed by means of the nut 33.

[0061] It should be noted that the above-mentioned connecting member may also be a structure composed of a screw, a stud and a nut, a clamping member, a riveting member, etc., and the present application does not make specific limitations on this.

[0062] Optionally, please refer to Figure 2 the number of the mounting holes 11 and the number of the connecting assemblies 3 may both be multiple. The multiple mounting holes 11 are arranged along the circumferential direction of the disc cap 1, and the multiple connecting assemblies 3 are respectively arranged in the multiple mounting holes 11. Thus, by connecting the disc cap 1 and the brake disc 2 by means of the multiple connecting assemblies 3, on the one hand, the force balance can be ensured, and on the other hand, the position of the disc cap 1 relative to the brake disc 2 can be limited in the radial direction. Figure 2 Only one connecting assembly 3 is shown in the figure.

[0063] In some embodiments, please refer to Figure 2, the mounting hole 11 can penetrate through the edge of the disc cap 1 in the radial direction to simplify the assembly difficulty of the braking assembly. Of course, in other embodiments, the mounting hole 11 can also be a hole with a closed perimeter, and the present application does not make specific limitations thereon.

[0064] The elastic member 4 is disposed between the connecting assembly 3 and the disc cap 1. During braking, the elastic member 4 allows the brake disc 2 to elastically float relative to the disc cap 1 to prevent wear of the brake disc 2, thereby avoiding irreversible deterioration of the performance of the brake disc 2.

[0065] For example, in some braking scenarios, such as multiple consecutive brakings or extreme working condition scenarios, the brake disc 2 will skew radially relative to the disc cap 1, which easily causes uneven wear between the brake disc 2 and the disc cap 1, resulting in mechanical damage to the brake disc 2 or generation of noise, affecting the user experience and shortening the service life of the brake disc 2.

[0066] To solve the above problems, please refer to Figure 4 , Figure 4 is a schematic structural diagram of the elastic member 4 provided in some embodiments of the present application. The elastic member 4 includes at least one of a steel elastic member, an iron elastic member, an aluminum alloy elastic member, and a ceramic elastic member. By way of example, the elastic member 4 can be a 316L stainless steel elastic member.

[0067] The elastic member 4 can include a radially floating portion 41. Please refer to Figure 2 and Figure 3 , the radially floating portion 41 is received in the mounting hole 11. Along the radial direction of the disc cap 1, the radially floating portion 41 is disposed between the disc cap 1 and the connecting assembly 3. By way of example, the radially floating portion 41 can be located on the side of the connecting assembly 3 facing the center of the disc cap 1. Specifically, the radially floating portion 41 can be disposed between the edge of the mounting hole 11 close to the center of the disc cap 1 and the connecting assembly 3. This structure is simple and easy to implement. The radially floating portion 41 can be elastically deformed along the radial direction of the disc cap 1.

[0068] In this way, during braking, the brake disc 2 has a radial floating margin relative to the disc cap 1 to avoid uneven wear between the brake disc 2 and the disc cap 1 after the brake disc 2 skews radially relative to the disc cap 1, thereby reducing the mechanical damage suffered by the brake disc 2, avoiding generation of noise, and extending the service life of the brake disc 2.

[0069] In the above embodiments, the elastic deformation amount of the radial floating portion 41 along the radial direction of the disk cap 1 can be greater than or equal to 0.05 mm and less than or equal to 0.9 mm. Specifically, the elastic deformation amount of the radial floating portion 41 along the radial direction of the disk cap 1 can be 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm or 0.9 mm. In this way, the requirement for the radial floating amount can be met, and at the same time, the structural compactness can be ensured.

[0070] There can be various materials and shapes for the radial floating portion 41. For example, the material of the radial floating portion 41 can be spring steel, or elastic rubber or silica gel. The shape of the radial floating portion 41 includes but is not limited to serpentine, S-shaped, n-shaped, etc.

[0071] The radial floating portion 41 can include at least one elastic portion that is elastically deformable along the radial direction of the disk cap 1. The elastic portion can be a helical spring, a disc spring, a leaf spring, etc. Optionally, the elastic portion is elastically deformable along the radial direction of the disk cap 1 away from the center of the disk cap 1, or the elastic portion is elastically deformable along the radial direction of the disk cap 1 towards the center of the disk cap 1.

[0072] In some embodiments, the elastic portion can include a bent section that arches towards the center of the disk cap 1, so that the elastic portion is elastically deformable along the radial direction of the disk cap 1 away from the center of the disk cap 1. Or, the bent section arches away from the center of the disk cap 1, so that the elastic portion is elastically deformable along the radial direction of the disk cap 1 towards the center of the disk cap 1. This structure is simple and easy to implement.

[0073] Optionally, please refer to Figures 2 - 4 together. The radial floating portion 41 includes at least one first elastic portion 411 and at least one second elastic portion 412 that are alternately arranged in sequence along the circumferential direction of the disk cap 1. The first elastic portion 411 includes a first bent section that arches towards the center of the disk cap 1. The second elastic portion 412 includes a second bent section that arches away from the center of the disk cap 1.

[0074] This structure is simple, and through the shape design of the radial floating portion 41, the radial floating portion 41 has elasticity along the radial direction of the disk cap 1, and the stability of the elastic force is relatively good.

[0075] In some embodiments, please continue to refer to Figures 2 - 4 together. The number of the first elastic portions 411 is two, and the number of the second elastic portions 412 is one. Along the circumferential direction of the disk cap 1, the one second elastic portion 412 is located between the two first elastic portions 411.

[0076] The structure of the radial floating portion 41 of this shape is simple and convenient for processing. Of course, the number of the first elastic portion 411 and the second elastic portion 412 can also be other numbers, and the present application does not make specific limitations thereto.

[0077] The shapes of the first bending section and the second bending section in the first cross-section can be arc-shaped, peak-shaped, Λ-shaped, Ω-shaped, П-shaped or irregular shapes, wherein the first cross-section is perpendicular to the axial direction of the disc cap 1. Figure 4 The illustrated embodiment takes the shapes of the first bending section and the second bending section in the first cross-section being peak-shaped as an example for illustration. In other embodiments, please refer to Figure 5 , Figure 5 which is a schematic structural diagram of the elastic member 4 provided in some other embodiments of the present application. The shape of the second bending section in the first cross-section is Ω-shaped, and the shape of the first bending section in the first cross-section is irregular.

[0078] In some embodiments, please refer to Figure 4 or Figure 5 , the elastic member 4 may further include two connecting portions 42. The two connecting portions 42 are arranged at intervals along the circumferential direction of the disc cap 1, and the radial floating portion 41 is connected between one ends of the two connecting portions 42 facing the center of the disc cap 1. Each connecting portion 42 is provided with an axial floating portion 43, and the axial floating portion 43 is in a slightly bent shape. The axial floating portion 43 is arranged between the disc cap 1 and the connecting assembly 3 and can be elastically deformed along the axial direction of the disc cap 1. Specifically, the axial floating portion 43 can be arranged between the disc cap 1 and the first stop portion 322, or between the disc cap 1 and the second stop portion 323.

[0079] In this way, during the braking process, with the help of the axial floating portion 43, the brake disc 2 can have a floating margin along the axial direction relative to the disc cap 1, so as to avoid wear between the brake disc 2 and the disc cap 1 after the brake disc 2 moves axially relative to the disc cap 1, thereby reducing the mechanical damage suffered by the brake disc 2 and further extending the service life of the brake disc 2.

[0080] In some embodiments, please continue to refer to Figure 4 or Figure 5 , the number of the axial floating portions 43 provided on each connecting portion 42 is two, and the two axial floating portions 43 are respectively connected to both ends of the connecting portion 42 in the axial direction of the disc cap 1. With the help of the two axial floating portions 43, the floating elastic force of the brake disc 2 relative to the disc cap 1 along the axial direction can be increased, ensuring the structural strength. At the same time, the two axial floating portions 43 and the connecting portion 42 form a U-shaped structure, and this U-shaped structure cooperates with the disc cap 1 to limit the offset of the elastic member 4 relative to the disc cap 1.

[0081] In some embodiments, the thickness of the axial floating portion 43 may be greater than or equal to 0.4 mm and less than or equal to 0.8 mm. For example, the thickness of the axial floating portion 43 may be 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, or 0.8 mm. In this way, the thickness of the axial floating portion 43 is appropriate, and both the structural strength and elasticity can be taken into account.

[0082] In some embodiments, please continue to refer to Figures 2 - 4 , one end of the connecting portion 42 facing the center of the disc cap 1 is the first end D1, and the end of the connecting portion 42 facing away from the center is the second end D2. Along the radial direction of the disc cap 1, the shortest distance from the second bending section to the second end D2 is the first distance w1, and the maximum distance from the first bending section to the first end D1 is the second distance w2. The value of the first distance w1 to the second distance w2 (i.e., w1:w2) is greater than or equal to 3.72 and less than or equal to 22.54. For example, this ratio may be 4.17 or 4.5. In this way, the elastic member 4 has better strength and stiffness.

[0083] In some embodiments, please refer to Figure 5 , on one of the two connecting portions 42, a first limiting portion 44 is provided on the surface facing away from the other connecting portion 42. The first limiting portion 44 is used to cooperate with the disc cap 1 to prevent the elastic member 4 from separating from the disc cap 1 along the radial direction of the disc cap 1. In this way, during the rotation of the brake disc 202 with the wheel hub 201, the elastic member 4 can be prevented from separating from the disc cap 1 along the radial direction of the disc cap 1 under the action of centrifugal force, ensuring structural stability.

[0084] In the above embodiments, the first limiting portion 44 includes but is not limited to a limiting rib or a limiting groove. In this application, the first limiting portion 44 is taken as a limiting rib for illustrative purposes. Based on this, a limiting groove is provided on the inner side wall of the mounting hole 11 on the disc cap 1, and the elastic member 4 can be prevented from separating from the disc cap 1 along the radial direction by means of the cooperation of the limiting rib and the limiting groove.

[0085] In some embodiments, please continue to refer to Figure 5 , the protruding height of the first limiting portion 44 is the first height h, and the length of the connecting portion 42 along the circumferential direction of the disc cap 1 is the first length a. The value of the first height h to the first length a is greater than or equal to 1 / 6 and less than or equal to 1 / 3. In this way, the limiting stability of the first limiting portion 44 is relatively excellent, and at the same time, it is convenient for the elastic member to be inserted into the mounting hole 11.

[0086] Similarly, please refer to Figure 6 and in combination with Figure 3 , Figure 6Schematic diagram of the elastic member 4 provided by some other embodiments of the present application. In each of the two axial floating portions 43 of the connecting portion 42, a second limiting portion 45 is provided on the surface of one axial floating portion 43 facing the other axial floating portion 43. The second limiting portion 45 is used to cooperate with the disc cap 1 to prevent the elastic member 4 from separating from the disc cap 1 along the radial direction of the disc cap 1. In this way, during the rotation of the brake disc 202 with the hub 201, the elastic member 4 can also be prevented from separating from the disc cap 1 along the radial direction of the disc cap 1 under the action of centrifugal force, ensuring structural stability.

[0087] In the above embodiment, the second limiting portion 45 includes, but is not limited to, a limiting rib or a limiting groove. In this application, the second limiting portion 45 is taken as a limiting rib for exemplary illustration. Based on this, a limiting groove is provided on the disc cap 1, and the elastic member 4 can be prevented from separating from the disc cap 1 along the radial direction by the cooperation of the limiting rib and the limiting groove.

[0088] In some embodiments, the protruding height of the second limiting portion 45 is the second height, and the distance between the two axial floating portions 43 provided on each connecting portion 42 is the third distance. The ratio of the third height to the third distance is greater than or equal to 1 / 6 and less than or equal to 1 / 3. In this way, the limiting stability of the second limiting portion 45 is relatively good, and at the same time, it is convenient for the assembly of the elastic member 4 and the disc cap 1.

[0089] In some embodiments, please refer back to Figure 2 , the brake disc 202 further includes an auxiliary elastic member 5, and the auxiliary elastic member 5 is connected between the connecting assembly 3 and the disc cap 1. Optionally, a part of the auxiliary elastic member 5 is sleeved on the connecting member and clamped between the connecting member limiting sleeve 32 and the nut 33, and the other part is fixed to the disc cap 1. By means of the elastic arm between this part and the other part of the auxiliary elastic member 5, the elastic floating force of the brake disc 2 relative to the disc cap 1 along the axial direction of the disc cap 1 can be increased, ensuring structural strength.

[0090] In the description of this specification, specific features, structures, materials, or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0091] The above are only the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A braking assembly, characterized in that, Comprising: A disk cap (1); A connecting component (3) connected to the disk cap (1); An elastic member (4) including a radially floating portion (41), along the radial direction of the disk cap (1), the radially floating portion (41) is disposed between the disk cap (1) and the connecting component (3) and is elastically deformable along the radial direction of the disk cap (1).

2. The braking assembly according to claim 1, wherein, The elastic deformation amount of the radially floating portion (41) along the radial direction of the disk cap (1) is greater than or equal to 0.05 mm and less than or equal to 0.9 mm.

3. The braking assembly according to claim 1, characterized in that, The radially floating portion (41) includes at least one elastic portion that is elastically deformable along the radial direction of the disk cap (1).

4. The braking assembly according to claim 3, characterized in that, The elastic portion is elastically deformable along the radial direction of the disk cap (1) in a direction away from the center of the disk cap (1); or, The elastic portion is elastically deformable along the radial direction of the disk cap (1) in a direction towards the center of the disk cap (1).

5. The braking assembly according to claim 3, wherein, The elastic portion includes a bent section that arches towards the center of the disk cap (1) so that the elastic portion is elastically deformable along the radial direction of the disk cap (1) in a direction away from the center of the disk cap (1); or, The bent section arches away from the center of the disk cap (1) so that the elastic portion is elastically deformable along the radial direction of the disk cap (1) towards the center of the disk cap (1).

6. The braking assembly according to claim 3, characterized in that, The radially floating portion (41) includes at least one first elastic portion (411) and at least one second elastic portion (412) that are alternately arranged in sequence along the circumferential direction of the disk cap (1); The first elastic portion (411) includes a first bent section that arches towards the center of the disk cap (1); The second elastic portion (412) includes a second bent section that arches away from the center of the disk cap (1).

7. The braking assembly according to claim 6, wherein, The number of the first elastic portions (411) is two, and the number of the second elastic portions (412) is one; Along the circumferential direction of the disk cap (1), one of the second elastic portions (412) is located between the two first elastic portions (411).

8. The braking assembly according to claim 6, wherein The shapes of the first bent section and the second bent section in a first cross-section are arc-shaped, wave-peak-shaped, Λ-shaped, Ω-shaped, П-shaped; Wherein, the first cross-section is perpendicular to the axial direction of the disk cap (1).

9. The braking assembly according to claim 1, characterized in that, The radially floating portion (41) is located on the side of the connecting component (3) facing the center of the disk cap (1).

10. The braking assembly according to claim 9, wherein The disk cap (1) is provided with a mounting hole (11), and the connecting component (3) passes through the mounting hole (11); The radially floating portion (41) is disposed between the edge of the mounting hole (11) close to the center of the disk cap (1) and the connecting component (3).

11. The braking assembly according to claim 6, wherein, The elastic member (4) further includes two connecting portions (42); The two connecting portions (42) are arranged at intervals along the circumferential direction of the disk cap (1), and the radially floating portion (41) is connected between the ends of the two connecting portions (42) facing the center of the disk cap (1); Each of the connecting portions (42) is provided with an axially floating portion (43), and the axially floating portion (43) is disposed between the disk cap (1) and the connecting component (3) and is elastically deformable along the axial direction of the disk cap (1).

12. The braking assembly according to claim 11, wherein, The number of axial floating parts (43) provided at each of the connecting parts (42) is two, and the two axial floating parts (43) are respectively connected to both ends of the connecting part (42) in the axial direction of the disc cap (1).

13. The braking assembly according to claim 11, wherein The thickness of the axial floating part (43) is greater than or equal to 0.4 mm and less than or equal to 0.8 mm.

14. The braking assembly according to claim 11, wherein, One end of the connecting part (42) facing the center of the disc cap (1) is the first end (D1); One end of the connecting part (42) facing away from the center of the disc cap (1) is the second end (D2); Along the radial direction of the disc cap (1), the shortest distance from the second bending section to the second end (D2) is the first distance (w1), and the maximum distance from the first bending section to the first end (D1) is the second distance (w2); The value of the first distance (w1) is greater than or equal to 3.72 and less than or equal to 22.54 compared to the second distance (w2).

15. The braking assembly according to claim 11, wherein, Among the two connecting parts (42), a first limiting part (44) is provided on the surface of one connecting part (42) facing away from the other connecting part (42); The first limiting part (44) is used to cooperate with the disc cap (1) to prevent the elastic part (4) from separating from the disc cap (1) along the radial direction of the disc cap (1).

16. The braking assembly according to claim 15, wherein The first limiting part (44) is a limiting rib.

17. The braking assembly according to claim 16, characterized in that, The protruding height of the first limiting part (44) is the first height (h), and the length of the connecting part (42) along the circumferential direction of the disc cap (1) is the first length (a); The value of the first height (h) is greater than or equal to 1 / 6 and less than or equal to 1 / 3 compared to the first length (a).

18. The braking assembly according to claim 12, wherein, Among the two axial floating parts (43) provided at each of the connecting parts (42), a second limiting part (45) is provided on the surface of one axial floating part (43) facing the other axial floating part (43); The second limiting part (45) is used to cooperate with the disc cap (1) to prevent the elastic part (4) from separating from the disc cap (1) along the radial direction of the disc cap (1).

19. The braking assembly according to claim 18, wherein The second limiting part (45) is a limiting rib.

20. The braking assembly according to claim 19, wherein, The protruding height of the second limiting part (45) is the second height; The distance between the two axial floating parts (43) provided at each of the connecting parts (42) is the third distance, and the value of the second height is greater than or equal to 1 / 6 and less than or equal to 1 / 3 compared to the third distance.

21. The braking assembly according to any one of claims 1-20, characterized in that, The elastic part (4) includes at least one of a steel elastic part, an iron elastic part, an aluminum alloy elastic part, and a ceramic elastic part.

22. A brake disc (202), characterized in that, Comprising: The braking assembly according to any one of claims 1 - 21; A brake disc (2); the brake disc (2) is connected to the connecting assembly (3) of the braking assembly.

23. A wheel (20), characterized in that, Comprising a wheel hub (201) and the brake disc (202) according to claim 22, the disc cap (1) of the brake disc (202) is fixed to the wheel hub (201) and is coaxially arranged with the wheel hub (201).

24. A vehicle (100), characterized in that, Comprising a vehicle body (10) and the wheel (20) according to claim 23, the wheel (20) is connected to the vehicle body (10).

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