Double-row air duct composite brake disc
The brake disc, with its cast iron-aluminum alloy composite structure and dual-row air duct design, solves the problems of heavy weight and low heat dissipation efficiency of traditional cast iron brake discs, achieving lightweight and efficient heat dissipation, and improving braking performance and durability.
Patent Information
- Application Number
- CN202520643378.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-04-07
AI Technical Summary
Traditional cast iron brake discs are heavy and have low heat dissipation efficiency. Existing air duct designs are limited and cannot meet the needs of improving braking performance.
It adopts a cast iron-aluminum alloy composite structure, combined with a dual-row air duct design, and is connected by riveting and brazing to form the first and second air ducts, increasing the heat dissipation area.
It achieves lightweight brake discs and efficient heat dissipation, improving braking performance and durability, and offers excellent cost-effectiveness.
Smart Images
Figure CN223739919U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of lightweight brake discs for automobiles, specifically a dual-row air duct iron / aluminum composite brake disc. Background Technology
[0002] For a long time, vehicles have used cast iron brake discs. Cast iron has comprehensive advantages such as good friction performance, wide availability of materials, low cost and good machinability. However, cast iron has a high density, so there are currently no other suitable lightweight materials to replace it, which hinders the lightweighting of brake discs.
[0003] Due to the higher braking performance requirements currently placed on brake discs, especially the cooling effect of brake discs, more and more existing brake discs are adopting duct-type brake discs. These discs improve braking performance through thermal convection cooling. However, the duct design is limited by the cast iron material and casting process. Existing duct designs are limited to simple single-row duct designs, which restricts further improvements in cooling efficiency. Summary of the Invention
[0004] This invention aims to solve the technical problems of heavy weight and low heat dissipation efficiency of traditional cast iron brake discs. It adopts a cast iron-aluminum alloy composite structure and an innovative dual-row air duct design, achieving both lightweight design and efficient heat dissipation while ensuring friction performance.
[0005] This utility model provides a dual-row air duct composite brake disc, the brake disc comprising: a first ribbed half-disc, an aluminum core ring, and a second ribbed half-disc. Both the first and second ribbed half-discs include an iron ring, an aluminum ring, and multiple aluminum ribs. The iron ring includes an iron nail. Holes are provided at the same positions on the aluminum ring and the aluminum ribs. The iron ring, aluminum ring, and aluminum ribs are sequentially riveted and fixedly connected by the iron nail and the holes to form the first and second ribbed half-discs. The aluminum ribs of the first and second ribbed half-discs are respectively fixedly connected to the two sides of the aluminum core ring by brazing. A first air duct is formed between the first ribbed half-disc and the aluminum core ring, and a second air duct is formed between the second ribbed half-disc and the aluminum core ring.
[0006] Preferably, the aluminum ring and the aluminum rib are integrally formed.
[0007] Preferably, the aluminum rib is a pentagonal prism, a cylinder, or a quadrilateral prism, and each aluminum rib has two holes.
[0008] Preferably, the iron nails and the aluminum ribs are arranged in a concentric circle array.
[0009] Preferably, the iron ring further includes an iron flange and an iron flange hole for connection with the axle.
[0010] This utility model provides another dual-row air duct composite brake disc solution, specifically as follows: The brake disc includes a first ribbed half-disc and a second ribbed half-disc. Both the first ribbed half-disc and the second ribbed half-disc include an iron ring, a perforated aluminum ring, multiple aluminum ribs, and a connecting aluminum ring. The iron ring includes an iron nail. The perforated aluminum ring, the aluminum ribs, and the connecting aluminum ring are all provided with holes in the same position. The iron ring, the perforated aluminum ring, the aluminum ribs, and the connecting aluminum ring are sequentially riveted and fixedly connected by the iron nail and the holes to form the first ribbed half-disc and the second ribbed half-disc. The connecting aluminum rings of the first ribbed half-disc and the second ribbed half-disc are fixedly connected by brazing. A first air duct is formed between the perforated aluminum ring and the connecting aluminum ring of the first ribbed half-disc, and a second air duct is formed between the perforated aluminum ring and the connecting aluminum ring of the second ribbed half-disc.
[0011] Preferably, the aluminum ring and the aluminum rib are integrally formed.
[0012] Preferably, the aluminum rib is a pentagonal prism, a cylinder, or a quadrilateral prism, and each aluminum rib has two holes.
[0013] Preferably, the iron nails and the aluminum ribs are arranged in a concentric circle array.
[0014] Preferably, the iron ring further includes an iron flange and an iron flange hole for connection with the axle.
[0015] Although the schemes shown here are all double-row air ducts, in actual implementation, multiple air ducts with more than two rows can be designed according to the same principle, such as 3, 4, 5, 6, etc., to reasonably arrange the heat distribution and heat discharge during braking and optimize the design effect.
[0016] The benefits of this invention are: the iron / aluminum structure of the composite brake disc achieves lightweighting of the brake disc; the dual-row air duct increases the air cooling area and improves the cooling efficiency of the brake disc; and the durability of the brake disc and its brake pads is improved. Attached Figure Description
[0017] Figure 1 The perspective view shows the components of the first ribbed half-disc of the first embodiment of the present invention.
[0018] Figure 2 Perspective view shows Figure 1 The first ribbed half-disc formed by riveting the components shown.
[0019] Figure 3 The perspective view shows the components of the second ribbed half-disc of this utility model.
[0020] Figure 4 Perspective view shows Figure 3 The second ribbed half-disc formed by riveting the components shown.
[0021] Figure 5 The perspective view shows the components of the dual-air duct composite brake disc of the first embodiment of this utility model.
[0022] Figure 6 Perspective view shows Figure 5 The components shown are brazed together to form a dual-airflow composite brake disc.
[0023] Figure 7 The perspective view shows the components of the first air duct half-disc of the second embodiment of the present invention.
[0024] Figure 8 Perspective view shows Figure 7 The first half of the air duct is formed by riveting the components shown.
[0025] Figure 9 The perspective view shows the components of the second air duct half-disc of this utility model.
[0026] Figure 10 Perspective view shows Figure 9 The second air duct half-disc formed by riveting the components shown.
[0027] Figure 11 The perspective view shows the components of the dual-air duct composite brake disc of the second embodiment of the present invention.
[0028] Figure 12 Perspective view shows Figure 11 The components shown are brazed together to form a dual-airflow composite brake disc.
[0029] Figure 13 The perspective view shows the ribbed aluminum ring of the third embodiment of this utility model.
[0030] In the diagram, the numbers represent: 1-First ribbed half-disc; 2-First studded iron ring; 3-First perforated aluminum ring; 4-First perforated aluminum rib; 5-Second ribbed half-disc; 6-Second studded iron ring; 7-Second perforated aluminum ring; 8-Second perforated aluminum rib; 9-First side; 10-First stud; 11-Iron flange; 12-Iron flange hole; 13-First aluminum ring hole; 14-Aluminum flange; 15-Aluminum flange hole; 16-First rib hole; 17-First rib face; 18-Second side; 19-Second stud; 20- 21-Aluminum ring hole; 22-Second rib hole; 23-Second rib surface; 24-Aluminum core ring; 25-First air duct; 26-Second air duct; 37-Second air duct; 38-Second connecting surface; 40-Dual air duct composite brake disc; 41-First air duct half disc; 32-First connecting aluminum ring; 33-First connecting ring hole; 34-First connecting surface; 35-Second air duct half disc; 36-Second connecting aluminum ring; 37-Second connecting ring hole; 38-Second connecting surface; 40-Dual air duct composite brake disc; 41-Ribded aluminum ring; 42-Aluminum ring; 43-Aluminum rib; 44-Rib hole. Detailed Implementation
[0031] The preferred technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described technical solutions are only a part of the technical solutions of this utility model, and not all of the technical solutions.
[0032] First Embodiment
[0033] In this specification, terms containing "iron" include iron and iron alloys, preferably iron alloys with good braking performance; terms containing "aluminum" include aluminum and aluminum alloys, preferably aluminum alloys with good high-temperature mechanical properties.
[0034] In the following description, parts or components that are the same or have similar functions are represented by the same numbers.
[0035] This utility model relates to a double-row air duct composite brake disc.
[0036] See Figure 5 and 6 The first embodiment of this utility model includes a double-row air duct composite brake disc 30 comprising: a first ribbed half disc 1, an aluminum core ring 23, and a second ribbed half disc 5.
[0037] See Figure 1 The components of the first ribbed half-disc 1 include: a first studded iron ring 2, a first perforated aluminum ring 3, and a plurality of first perforated aluminum ribs 4.
[0038] The first studded iron ring 2 includes: a plurality of cylindrical first studs 10 arranged in a first array on the first side 9 and the opposite side. The first array is a four-row concentric circle array. In this example, each row of first studs 10 includes 40 first studs 10 evenly distributed. The first studded iron ring 2 also includes an iron flange 11 and an iron flange hole 12 for connecting with the axle.
[0039] The first perforated aluminum ring 3 includes: a first aluminum ring hole 13, an aluminum flange 14, and an aluminum flange hole 15. The first aluminum ring holes 13 are arranged in a first array. The size, shape, and hole / nail position of the first aluminum ring hole 13 correspond to and overlap with the size, shape, and hole / nail position of the first nail 10. The size, shape, and hole / nail position of the aluminum flange 14 and the iron flange 11 correspond to and overlap with the size, shape, and hole / nail position of the aluminum flange hole 15 and the iron flange hole 12 correspond to and overlap with the size, shape, and hole / nail position of the iron flange hole 12.
[0040] The first perforated aluminum rib 4 is cylindrical and has at least one first rib hole 16. In this example, the first perforated aluminum rib 4 is a quasi-pentagonal prism with two first rib holes 16. In this example, the first perforated aluminum rib 4 is arranged in two rows of circles, and the positions of its first rib holes 16 are in a first array, corresponding to and overlapping the positions of the first nail 10.
[0041] See Figure 2 The first studded iron ring 2, the first perforated aluminum ring 3, and the first perforated aluminum rib 4 are riveted together to form the first ribbed half-disc 1. Thus, one side of the first ribbed half-disc 1 is the first side surface 9, and the other side is the first rib surface 17.
[0042] See Figure 3 The second ribbed half-disc 5 of this utility model is composed of: a second studded iron ring 6, a second perforated aluminum ring 7, and a plurality of second perforated aluminum ribs 8.
[0043] The second studded iron ring 6 includes: a second side 18 and a plurality of cylindrical second studs 19 arranged in a second array on the opposite side. In this example, the second array of the second studs 19 is arranged in four concentric circles, with each row including 40 evenly distributed second studs 19.
[0044] The second perforated aluminum ring 7 includes a second array of second aluminum ring holes 20, wherein the second aluminum ring holes 20 correspond to and overlap with the size, shape and hole / nail position of the second nail 19.
[0045] The second perforated aluminum rib 8 is cylindrical, and each second perforated aluminum rib 8 has at least one second rib hole 21. In this example, the second perforated aluminum rib 8 is a quasi-pentagonal prism with two second rib holes 21. In this example, the second perforated aluminum rib 8 is arranged in two rows of circles, and the holes of its second rib holes 21 are arranged in a second array, corresponding to and overlapping the position of the second nail 19.
[0046] See Figure 4The second studded iron ring 6, the second perforated aluminum ring 7, and the second perforated aluminum rib 8 are riveted together to form the second ribbed half-disc 5. Thus, one side of the second ribbed half-disc 5 is the second side surface 18, and the opposite side is the second rib surface 22.
[0047] See Figure 5 This is a component of the dual-airflow composite brake disc 30 in the first embodiment of this utility model. It includes: a first ribbed half-disc 1, an aluminum core ring 23, and a second ribbed half-disc 5.
[0048] An aluminum core ring 23 is sandwiched between the first rib surface 17 of the first ribbed half-disc 1 and the second rib surface 22 of the second ribbed half-disc 5, and then brazed to obtain a dual-row air duct composite brake disc 30. (See also...) Figure 6 The brazed dual-airflow composite brake disc 30 shown has a first airflow 24 formed between the first ribbed half-disc 1 and the aluminum core ring 23; and a second airflow 25 formed between the second ribbed half-disc 5 and the aluminum core ring 23. The double rows of the first airflow 24 and the second airflow 25 effectively increase the airflow heat dissipation area, thereby improving the cooling efficiency.
[0049] Although the schemes shown here are all double-row air ducts, in actual implementation, multiple air ducts with more than two rows can be designed according to the same principle, such as 3, 4, 5, 6, etc., to reasonably arrange the heat distribution and heat discharge during braking and optimize the design effect.
[0050] Second Embodiment
[0051] See Figure 11 , 12 The second embodiment of the present invention includes a double-row air duct composite brake disc 40 comprising: a first air duct half disc 31 and a second air duct half disc 35.
[0052] See Figure 7 The components of the first air duct half-plate 31 of this utility model include: a first nailed iron ring 2, a first perforated aluminum ring 3, a plurality of first perforated aluminum ribs 4 and a first connecting aluminum ring 32, wherein the first connecting aluminum ring 32 has a first array of first connecting ring holes 33, and the first array is a four-row concentric circle array.
[0053] According to the first array, the holes of the first perforated aluminum ring 3, multiple first perforated aluminum ribs 4 and the first connecting aluminum ring 32 are aligned with the first nail 10 of the first nailed iron ring 2 and stacked, and then riveted to obtain the first air duct half plate 31.
[0054] See Figure 8 ,for Figure 7 The first air duct half-plate 31 formed by riveting the components shown includes a first air duct 24, one side of which is a first side surface 9, and the other side is a first connecting surface 34.
[0055] See Figure 9 The components of the second air duct half-plate 35 of this utility model include: a second nailed iron ring 6, a second perforated aluminum ring 7, a plurality of second perforated aluminum ribs 8 and a second connecting aluminum ring 36, wherein the second connecting aluminum ring 36 has a second array of second connecting ring holes 37, and the second array is a four-row concentric circle array.
[0056] According to the second array, the second perforated aluminum ring 7, multiple second perforated aluminum ribs 8, and the holes (20, 21 and 37) of the second connecting aluminum ring 36 are aligned and stacked with the second nail 19 of the second nailed iron ring 6, and then riveted to obtain the second air duct half plate 35.
[0057] See Figure 10 ,for Figure 9 The second air duct half-plate 35 formed by riveting the components shown includes a second air duct 25, one side of which is a second side surface 18, and the other side is a second connecting surface 38.
[0058] The first connecting surface 34 of the first air duct half-disc 31 and the second connecting surface 38 of the second air duct half-disc 35 are joined together and brazed to obtain a double-row air duct composite brake disc 40 (see...). Figure 11 , 12 The brake disc 40 includes a first air duct 24 and a second air duct 25.
[0059] Although the schemes shown here are all double-row air ducts, in actual implementation, multiple air ducts with more than two rows can be designed according to the same principle, such as 3, 4, 5, 6, etc., to reasonably arrange the heat distribution and heat discharge during braking and optimize the design effect.
[0060] Third Embodiment
[0061] See Figure 13 The perspective view shows the ribbed aluminum ring 41 component in the third embodiment of the present invention.
[0062] Figure 13 The ribbed aluminum ring 41 includes: aluminum ring 42, aluminum ribs 43 and rib holes 44. In this example, the ribbed aluminum ring 41 is actually a combination of the perforated aluminum ring (2 or 7) and the perforated aluminum rib (4 or 8) in the previous example. It can be easily formed by casting and drilling rib holes 44 corresponding to the first nail 10 or the second nail 19, or by machining an array of aluminum ribs 43 and rib holes 44 on the side of an annular aluminum plate. Then it is riveted to the nailed iron ring (2 or 6) to form a ribbed half disc 5.
[0063] The first ribbed half-disc 1 and the second ribbed half-disc 5, riveted together in the same manner as in Example 1, are then brazed together with the aluminum core ring 23 to form a dual-air duct composite brake disc 30. Although the number of machining operations is increased in this example compared to the first embodiment, it is more suitable for customized products or experimental samples for small-batch single-piece production.
[0064] It is worth mentioning that although the perforated aluminum ribs 4, 8, and 28 proposed in the above embodiments are composed of pentagonal prisms, the number and shape of the aluminum ribs can be combined in any reasonable way, such as straight strips, arcs, prisms, etc.; although each aluminum rib 4 and 8 has two holes 16 and 21, the number of holes can vary according to the design of the aluminum ribs, such as 1, 3, 4, 5, 6, etc.
[0065] The dual-airflow composite brake discs 30 and 40 of this invention adopt an iron / aluminum composite structure, which effectively reduces weight and meets the requirements for lightweight brake discs.
[0066] The friction surfaces formed by the dual-airflow brake disc 30 of this invention are actually the first side 9 and the second side 18, both of which are made of iron. Therefore, they have good friction performance and improve the durability of the brake disc.
[0067] Because the components of the dual-air duct brake discs 30 and 40 of this utility model have simple shapes and are easy to process, they can be manufactured economically, with good cost performance and mass production capability.
[0068] Although the schemes shown here are all double-row air ducts, in actual implementation, multiple air ducts with more than two rows can be designed according to the same principle, such as 3, 4, 5, 6, etc., to reasonably arrange the heat distribution and heat discharge during braking and optimize the design effect.
[0069] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A dual row air channel composite brake disc characterized in that, The brake disc comprises a first ribbed half disc, an aluminum core ring and a second ribbed half disc, the first ribbed half disc and the second ribbed half disc each comprise an iron ring, an aluminum ring and a plurality of aluminum ribs; one side of the iron ring is provided with an iron nail, the aluminum ring and the aluminum ribs are provided with holes at the same position, the aluminum ribs are arranged in a concentric circular array on one side of the aluminum ring, and the other side of the aluminum ring is connected with the iron ring; the first ribbed half disc is fixedly connected by the iron ring, the aluminum ring and the aluminum ribs in sequence through the iron nail and the hole; the second ribbed half disc is fixedly connected by the iron ring, the aluminum ring and the aluminum ribs in sequence through the iron nail and the hole; the aluminum ribs of the first ribbed half disc are brazed to one side surface of the aluminum core ring, and a first air duct is formed between the first ribbed half disc and the aluminum core ring; the aluminum ribs of the second ribbed half disc are brazed to the other side surface of the aluminum core ring, and a second air duct is formed between the second ribbed half disc and the aluminum core ring.
2. A dual row air channel composite brake disc characterized in that, The brake disc comprises a first ribbed half disc, a second ribbed half disc, the first ribbed half disc and the second ribbed half disc each comprise an iron ring, a hole aluminum ring, a plurality of aluminum ribs and a connecting aluminum ring; one side of the iron ring is provided with an iron nail, the hole aluminum ring, the aluminum ribs and the connecting aluminum ring are each provided with holes at the same position, the aluminum ribs are arranged between the inner side surface of the hole aluminum ring and the inner side surface of the connecting aluminum ring, and are arranged in a concentric circular array, and the outer side surface of the hole aluminum ring is connected with the iron ring; the first ribbed half disc and the second ribbed half disc are fixedly connected by the iron ring, the hole aluminum ring, the aluminum ribs and the connecting aluminum ring in sequence through the iron nail and the hole, a first air duct is formed between the inner side surface of the hole aluminum ring and the inner side surface of the connecting aluminum ring of the first ribbed half disc, and a second air duct is formed between the inner side surface of the hole aluminum ring and the inner side surface of the connecting aluminum ring of the second ribbed half disc; the outer side surface of the connecting aluminum ring of the first ribbed half disc and the outer side surface of the connecting aluminum ring of the second ribbed half disc are fixedly connected by brazing.
3. A dual row air channel composite brake disc according to claim 1 or 2, wherein, The aluminum ring and the aluminum ribs are integrally formed.
4. A dual row air channel composite brake disc according to claim 1 or 2, wherein, The aluminum ribs are pentagonal columns, cylindrical columns or quadrangular columns, and each aluminum rib is provided with two holes.
5. A dual row air channel composite brake disc according to claim 1 or 2, wherein, The iron nail and the hole are arranged in a concentric circular array.
6. A dual row air channel composite brake disc according to claim 1 or 2, wherein, The iron ring of the first ribbed half disc and the iron ring of the second ribbed half disc each comprise an iron flange and an iron flange hole, which are used for connecting with an axle.