Brake disc, brake assembly and vehicle

Abstract

The utility model discloses a brake disc, a brake assembly and a vehicle, the brake disc comprises a disc main body, the hub surface of the disc main body is provided with a heat dissipation hole, and the hub surface of the disc main body is provided with an accommodating groove around the edge of the heat dissipation hole. According to the brake disc, the heat dissipation holes are formed in the hub face of the disc body, so that the heat dissipation area of the brake disc is increased, the heat dissipation effect of the brake disc is improved, and the problem that the brake efficiency is reduced due to heat fade is solved; according to the brake disc, the containing grooves are formed in the hub face of the disc body and around the edges of the heat dissipation holes, the containing grooves can contain powder generated by friction of a friction plate and the brake disc, pollution of the powder to a rim is reduced, the powder is prevented from aggravating abrasion between the friction plate and the brake disc, and therefore the service life of the brake disc and the service life of the friction plate are prolonged.

Description

Technical Field

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

[0002] In the brake systems of many vehicles, holes are usually punched on the brake disc to increase the heat dissipation area of ​​the brake disc. However, when the friction pad contacts the brake disc, some corners of the friction pad will contact the edge of the hole to generate shear force, thereby increasing the wear of the friction pad. The friction pad and brake disc will also produce more powder due to wear, resulting in a shortened service life of the friction pad. Utility Model Content

[0003] In view of this, the utility model aims to provide a brake disc, a brake assembly and a vehicle to solve at least one of the technical problems of the prior art, such as large wear of the friction plate and short service life.

[0004] The utility model provides a brake disc, comprising a disc main body, a hub surface of the disc main body is provided with a heat dissipation hole, and an accommodating groove is provided on the hub surface of the disc main body around the edge of the heat dissipation hole.

[0005] Furthermore, the accommodating groove is an annular structure, and a first transition fillet is provided between the outer annular surface of the accommodating groove and the hub surface of the disc body.

[0006] Furthermore, the radius of the first transition fillet is 0.4-0.6 mm.

[0007] Furthermore, a boss in an annular structure is provided in the accommodating groove along the edge of the heat dissipation hole, the outer annular surface of the boss forms the inner annular surface of the accommodating groove, and the height of the boss is smaller than the depth of the accommodating groove.

[0008] Furthermore, a second transition fillet is provided between the outer annular surface of the boss and the top surface of the boss.

[0009] Furthermore, the radius of the second transition fillet is 0.1-0.3 mm.

[0010] Furthermore, a coating portion is provided on the boss, and a coating for displaying the wear condition of the brake disc is provided on the coating portion.

[0011] Furthermore, a plurality of heat dissipation holes are provided on the hub surface of the disk body, and ventilation holes are provided on the disk body from the outer annular surface of the disk body to the inner annular surface of the disk body, and one ventilation hole is connected to at least one heat dissipation hole.

[0012] The utility model also provides a brake assembly, comprising the brake disc.

[0013] The utility model also provides a vehicle, comprising the brake assembly.

[0014] The brake disc of the utility model is provided with heat dissipation holes on the hub surface of the disc body, thereby increasing the heat dissipation area of ​​the brake disc, improving the heat dissipation effect of the brake disc, and alleviating the problem of reduced braking efficiency caused by thermal decay; on the hub surface of the disc body, an accommodating groove is provided around the edge of the heat dissipation hole, and the accommodating groove can accommodate powder generated by the friction between the friction plate and the brake disc, reducing the contamination of the wheel rim by the powder, avoiding the powder from aggravating the wear between the friction plate and the brake disc, thereby extending the service life of the brake disc and the friction plate.

[0015] The brake assembly and vehicle of the present invention have all the beneficial effects of the above-mentioned brake disc, which will not be described in detail here.

[0016] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In the drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar parts. The drawings generally illustrate various embodiments by way of example and not limitation, and together with the specification and claims, are used to illustrate the disclosed embodiments. When appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method. The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 It is a structural schematic diagram of the brake assembly provided by the utility model;

[0019] Figure 2 It is a cross-sectional schematic diagram of the brake disc provided by the utility model;

[0020] Figure 3 This is one of the cross-sectional schematic diagrams of the heat dissipation holes provided by the utility model;

[0021] Figure 4 This is the second cross-sectional schematic diagram of the heat dissipation hole provided by the utility model.

[0022] The above drawings include the following reference numerals:

[0023] 1. disk body; 11. heat dissipation hole; 12. accommodation groove; 121. first transition fillet; 13. boss; 131. second transition fillet; 14. ventilation hole. DETAILED DESCRIPTION

[0024] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings, but are not intended to limit the present invention.

[0025] It should be understood that various modifications may be made to the embodiments disclosed herein. Therefore, the above description should not be considered as limiting, but only as an example of an embodiment. Other modifications within the scope and spirit of the utility model will occur to those skilled in the art.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] This specification may use the phrases "in one embodiment", "in another embodiment", "in yet another embodiment" or "in other embodiments", all of which may refer to one or more of the same or different embodiments according to the present invention.

[0028] The utility model provides a brake disc, comprising a disc body 1, a hub surface of the disc body 1 is provided with a heat dissipation hole 11, and an accommodating groove 12 is provided on the hub surface of the disc body 1 around the edge of the heat dissipation hole 11.

[0029] Combination Figure 1 As shown, a plurality of heat dissipation holes 11 are provided on the hub surface of the disk body 1 to increase the heat dissipation area of ​​the disk body 1, and a receiving groove 12 is provided on the hub surface of the disk body 1 around the edge of the heat dissipation holes 11. Figure 3 As shown, an annular structure of the receiving groove 12 is exemplarily adopted, wherein the cross-section of the receiving groove 12 is L-shaped, the outer ring surface of the receiving groove 12 is the side wall surface of the receiving groove 12 perpendicular to the hub surface of the disk body 1 in the figure, and the bottom wall surface of the receiving groove 12 is vertically connected with the side wall surface of the heat dissipation hole 11, that is, in this embodiment, the inner ring side of the receiving groove 12 is not provided with a side wall, thereby forming an L-shaped cross-section.

[0030] It can be understood that the accommodating groove 12 can adopt any groove structure. For example, the accommodating groove 12 can be only arranged on a partial edge of the heat dissipation hole 11 to form an arc structure different from the ring structure, or the accommodating groove 12 can also be a part of the rectangular ring structure; the cross-section of the accommodating groove 12 can also be any cross-sectional shape that can perform the accommodating function, for example, the cross-section of the accommodating groove 12 is L-shaped, V-shaped, etc.

[0031] The brake disc in the utility model is provided with heat dissipation holes 11 on the hub surface of the disc body 1, thereby increasing the heat dissipation area of ​​the brake disc, improving the heat dissipation effect of the brake disc, and alleviating the problem of reduced braking efficiency caused by thermal decay; on the hub surface of the disc body 1, an accommodating groove 12 is provided around the edge of the heat dissipation hole 11, and the accommodating groove 12 can accommodate powder generated by the friction between the friction plate and the brake disc, reduce the pollution of the powder to the wheel rim, avoid the powder aggravating the wear between the friction plate and the brake disc, and thus extend the service life of the brake disc and the friction plate.

[0032] Furthermore, the accommodating groove 12 is an annular structure, and a first transition fillet 121 is provided between the outer annular surface of the accommodating groove 12 and the hub surface of the disc body 1 .

[0033] Combination Figure 3 and Figure 4 As shown, the accommodating groove 12 is annular in structure and is arranged around the edge of the heat dissipation hole 11. The outer annular surface of the accommodating groove 12 is connected with the hub surface of the disc body 1. A first transition fillet 121 is provided at the connection between the two to make the connection between the outer annular surface of the accommodating groove 12 and the hub surface of the disc body 1 smoother, avoid shear force between the sharp edge of the hole and the corner of the friction plate, reduce the wear between the friction plate and the brake disc, and extend the service life of the brake disc and the friction plate.

[0034] Furthermore, the radius of the first transition fillet 121 is 0.4-0.6 mm.

[0035] Combination Figure 3 and Figure 4 As shown, the radius of the first transition fillet 121 is 0.5 mm, which can achieve a better connection effect, making the connection between the outer annular surface of the accommodating groove 12 and the hub surface of the disc body 1 smoother, thereby reducing the wear between the friction plate and the brake disc.

[0036] Furthermore, a boss 13 with an annular structure is provided in the receiving groove 12 along the edge of the heat dissipation hole 11 , the outer annular surface of the boss 13 forms the inner annular surface of the receiving groove 12 , and the height of the boss 13 is less than the depth of the receiving groove 12 .

[0037] Combination Figure 4As shown, a boss 13 with an annular structure is provided along the edge of the heat dissipation hole 11, and the outer annular surface of the boss 13 forms the inner annular surface of the accommodating groove 12, and the height of the boss 13 is less than the depth of the accommodating groove 12, so that the accommodating groove 12 forms a J-shaped cross-section, which can better accommodate the powder generated by the wear between the friction plate and the brake disc, and at the same time prevent the boss 13 from protruding out of the accommodating groove 12 to aggravate the wear of the brake disc and the friction plate.

[0038] Furthermore, a second transition fillet 131 is provided between the outer annular surface of the boss 13 and the top surface of the boss 13 .

[0039] Combination Figure 4 As shown, a second transition fillet 131 is provided at the junction between the outer annular surface of the boss 13 and the top surface of the boss 13. When the brake disc is worn to a certain extent, the top surface of the boss 13 will also contact the friction plate. The second transition fillet 131 can avoid the shear force between the corner parts of the boss 13 and the corner parts of the friction plate.

[0040] Furthermore, the radius of the second transition fillet 131 is 0.1-0.3 mm.

[0041] Combination Figure 4 As shown, the radius of the second transition fillet 131 is 0.2 mm, which can achieve a better connection effect, making the connection between the outer annular surface of the boss 13 and the top surface of the boss 13 smoother, thereby reducing the wear between the friction plate and the brake disc.

[0042] Furthermore, a coating portion is provided on the boss 13 , the position of the coating portion is determined based on the wear limit position of the brake disc, and the coating portion is provided with a coating for displaying the wear condition of the brake disc.

[0043] For example, pigment can be used as a coating on the coating portion of the boss 13 (or a metal with a special color such as galvanizing can be plated on the coating portion). When the brake disc is worn to near the wear limit of the brake disc, the pigment in the coating portion is rubbed to leave obvious, colored marks on the friction plate and the brake disc, allowing the wear of the brake disc to be observed intuitively, thereby facilitating guidance and reminding users to use the vehicle safely.

[0044] Furthermore, a plurality of heat dissipation holes 11 are provided on the hub surface of the disk body 1 , and ventilation holes 14 are provided on the disk body 1 from the outer annular surface of the disk body 1 to the inner annular surface of the disk body 1 , and one ventilation hole 14 is connected to at least one heat dissipation hole 11 .

[0045] Combination Figure 1 and Figure 2As shown, a plurality of heat dissipation holes 11 are provided on the hub surface of the disk body 1 , and ventilation holes 14 extend from the outer annular surface of the disk body 1 to the inner annular surface of the disk body 1 , and are evenly spaced in the circumferential direction of the disk body 1 , and one ventilation hole 14 is connected to at least one heat dissipation hole 11 .

[0046] In this way, the ventilation holes 14 can further increase the heat dissipation area of ​​the brake disc, and play a role in ventilation and heat exchange, thereby improving the heat dissipation effect.

[0047] The utility model also provides a brake assembly, comprising the brake disc.

[0048] The brake assembly in the utility model adopts the above-mentioned brake disc, and heat dissipation holes 11 are provided on the hub surface of the disc body 1, thereby increasing the heat dissipation area of ​​the brake disc, improving the heat dissipation effect of the brake disc, and alleviating the problem of reduced braking efficiency caused by thermal decay; on the hub surface of the disc body 1, a receiving groove 12 is provided around the edge of the heat dissipation hole 11, and the receiving groove 12 can accommodate powder generated by the friction between the friction plate and the brake disc, reduce the contamination of the rim by the powder, avoid the powder aggravating the wear between the friction plate and the brake disc, and thus extend the service life of the brake disc and the friction plate.

[0049] The utility model also provides a vehicle, comprising the brake assembly.

[0050] The vehicle in the utility model adopts the above-mentioned brake assembly, and heat dissipation holes 11 are provided on the hub surface of the disc body 1 of the brake disc, thereby increasing the heat dissipation area of ​​the brake disc, improving the heat dissipation effect of the brake disc, and alleviating the problem of reduced braking efficiency caused by thermal decay; on the hub surface of the disc body 1, a receiving groove 12 is provided around the edge of the heat dissipation hole 11, and the receiving groove 12 can accommodate powder generated by the friction between the friction plate and the brake disc, reduce the contamination of the rim by the powder, avoid the powder aggravating the wear between the friction plate and the brake disc, and thus extend the service life of the brake disc and the friction plate.

[0051] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0052] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0053] In addition to the above, it should be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of the present utility model.

[0054] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0055] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A brake disc, characterized in that: It comprises a disk body, a hub surface of which is provided with a heat dissipation hole, and a receiving groove around the edge of the heat dissipation hole is provided on the hub surface of the disk body, the receiving groove is an annular structure, and a first transition fillet is provided between the outer ring surface of the receiving groove and the hub surface of the disk body.

2. The brake disc according to claim 1, characterized in that The radius of the first transition fillet is 0.4-0.6 mm.

3. The brake disc according to claim 1, characterized in that A boss with an annular structure is arranged in the containing groove along the edge of the heat dissipation hole, the outer annular surface of the boss forms the inner annular surface of the containing groove, and the height of the boss is smaller than the depth of the containing groove.

4. The brake disc according to claim 3, characterized in that A second transition fillet is provided between the outer annular surface of the boss and the top surface of the boss.

5. The brake disc according to claim 4, characterized in that The radius of the second transition fillet is 0.1-0.3 mm.

6. The brake disc according to claim 3, characterized in that The boss is provided with a coating portion, and the coating portion is provided with a coating for displaying the wear condition of the brake disc.

7. The brake disc according to claim 1, characterized in that A plurality of heat dissipation holes are provided on the hub surface of the disk body, and ventilation holes are provided on the disk body from the outer annular surface of the disk body to the inner annular surface of the disk body, and one ventilation hole is connected to at least one heat dissipation hole.

8. A brake assembly, characterized in that: A brake disc comprising the brake disc according to any one of claims 1 to 7.

9. A vehicle, characterized in that: Comprising the brake assembly of claim 8.

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