A carbon fiber hub and brake disc assembly

Abstract

The application relates to the technical field of bicycle accessories, and discloses a carbon fiber hub and brake disc assembly which comprises a hub barrel, a central rotating shaft which is rotationally connected with the hub barrel, a connecting plate which is integrally formed with the hub barrel, a brake disc which is attached to the end face of the connecting plate, and a connecting piece which is arranged through the brake disc and the connecting plate and used for fixedly connecting the brake disc and the connecting plate. The application can reduce the overall weight of a bicycle.

Description

Technical Field

[0001] This application relates to the technical field of bicycle accessories, and in particular to a carbon fiber hub and brake disc assembly. Background Technology

[0002] In bicycle parts, the hub (which contains a rotating spindle) and brake disc are separate components. The connection between the hub and brake disc is as described in utility model CN200820180133.1: the hub has a raised ring post, and the brake disc has a ring hole that mates with the ring post; the ring hole of the brake disc fits onto the ring post; the brake disc is directly fixed to the hub, and braking is achieved by clamping the brake disc with the friction pads of the brake caliper.

[0003] The lighter the bicycle, the less effort it takes to ride. How to simplify the connection method while maintaining the strength of the hub and brake disc connection, thereby appropriately reducing the weight of the bicycle, has always been the direction of exploration in the development of lightweight bicycles. Utility Model Content

[0004] To further improve the weight of a bicycle, this application provides a carbon fiber hub and brake disc assembly.

[0005] This application provides a carbon fiber hub and brake disc assembly, which adopts the following technical solution: A carbon fiber hub and brake disc assembly includes: Flower drum tube; The central pivot is rotatably connected to the drum cylinder; The connecting piece is integrally formed with the hub cylinder; A brake disc, wherein the end face of the brake disc and the end face of the connecting piece are fitted together; A connector, through which the brake disc and the connecting piece pass, is used to fix the brake disc and the connecting piece together.

[0006] By adopting the above technical solutions, the one-piece molding improves the connection strength between the hub tube and the connecting plate, avoiding the risk of loosening of the separate structure; the simplified connection method reduces redundant parts, providing a basis for the lightweighting of the bicycle, while ensuring the synchronous rotational stability required for braking.

[0007] Optionally, the brake disc includes: Brake contact ring; The connecting part is integrally formed with the brake contact ring and is spaced apart on the inner wall of the brake contact ring. It is fixedly connected by the connecting piece and the connecting plate.

[0008] By adopting the above technical solution, the brake contact ring is responsible for braking friction, the connecting part is responsible for connecting with the hub, and the connecting parts are spaced apart, which reduces the amount of material used while ensuring the connection function.

[0009] Optionally, the connector includes a threaded sleeve and a bolt, the threaded sleeve passing through the connecting portion and the connecting piece, and the bolt and the threaded sleeve being threadedly connected.

[0010] By adopting the above technical solution, the threaded sleeve is first embedded in the hole, and the bolt is connected to the sleeve, which can disperse the pressure of the bolt on the hole wall.

[0011] Optionally, the connecting piece includes an annular portion and a protruding portion, the protruding portions being distributed circumferentially along the annular portion, and the protruding portions and the connecting portions corresponding one-to-one.

[0012] By adopting the above technical solution, the amount of material used is reduced compared to a pure annular connecting piece, while ensuring the connection strength, thus further reducing the weight; the positioning function of the protrusion makes the docking between the connecting part and the connecting piece more precise, reducing the assembly difficulty.

[0013] Optionally, the connecting piece has a ring-shaped structure.

[0014] By adopting the above technical solution, the stress distribution is more uniform during one-piece molding.

[0015] Optionally, the inner diameter of the connecting part is smaller than the outer diameter of the connecting piece.

[0016] By adopting the above technical solution, in addition to the brake contact ring and brake caliper contact, the other parts of the brake disc are connected to the connecting plate. The connecting plate plays a better supporting role and enhances the overall strength of the brake disc. During use, when the brake disc rotates with the hub, the brake contact ring always rotates stably around the central axis, and the friction surface of the brake caliper and the contact ring makes uniform contact.

[0017] Optionally, the connecting piece and the hub tube are integrally molded from carbon fiber.

[0018] By adopting the above technical solutions, the overall weight of the hub and connecting plate is directly reduced, thus promoting the achievement of the goal of bicycle lightweighting; the high strength properties of carbon fiber ensure that the components are not easily deformed or broken during high-speed rotation and frequent braking, thus balancing lightweighting and safety.

[0019] In summary, this application includes at least one of the following beneficial effects: 1. The hub tube and connecting plate are made of carbon fiber and are molded in one piece, which not only improves the connection strength of the components, but also reduces the overall weight of the components; 2. The connecting piece strengthens the support for the brake disc, reduces the hollow area of ​​the brake disc, and improves the overall strength of the brake disc. Attached Figure Description

[0020] Figure 1 This is an exploded view of the overall structure of an embodiment of this application; Figure 2 This is an exploded view illustrating the connector in an embodiment of this application; Figure 3 This is a schematic front view of the connecting piece according to an embodiment of this application; Figure 4 This is a schematic diagram of the overall structure of the connecting piece, which has a ring-shaped structure, as shown in the embodiment of this application. Figure 5 This is a schematic diagram illustrating that the inner diameter of the connecting part is smaller than the outer diameter of the connecting piece in an embodiment of this application.

[0021] Explanation of reference numerals in the attached drawings: 10, hub tube; 30, connecting piece; 31, annular part; 32, protrusion; 40, brake disc; 41, brake contact ring; 42, connecting part; 50, connecting piece; 51, threaded sleeve; 52, bolt. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will be described in further detail.

[0023] This application discloses a carbon fiber hub and brake disc assembly. (Refer to...) Figure 1 A carbon fiber hub and brake disc assembly includes a hub cylinder 10, a center axle, a connecting plate 30, a brake disc 40, and a connector 50. The hub cylinder 10, as the basic support component of the assembly, bears the operational load of the entire assembly. The center axle is rotatably connected to the hub cylinder 10, providing a stable axis for the hub cylinder 10's rotation and ensuring smooth wheel rotation. The connecting plate 30 and the hub cylinder 10 are made of carbon fiber and integrally molded, enhancing the connection strength between them, reducing safety hazards caused by loose connections, and simplifying the connection structure, laying the foundation for lightweight bicycle design. The brake disc 40 is fixedly connected to the connecting plate 30 via the connector 50. The end face of the brake disc 40 and the end face of the connecting plate 30 are in close contact; this close contact is crucial for effective transmission of braking force.

[0024] Reference Figure 1 The brake disc 40 consists of a brake contact ring 41 and a connecting portion 42. The connecting portion 42 is integrally formed with the brake contact ring 41 and is spaced apart on the inner wall of the brake contact ring 41. The brake contact ring 41 has a hollowed-out portion to facilitate heat dissipation and reduce weight. The brake contact ring 41 is located on the outer side of the brake disc 40 and is in direct contact with the brake caliper. During braking, the brake caliper applies pressure to the brake contact ring 41, using the friction between the two to generate braking force, thus slowing down or stopping the bicycle.

[0025] Referring to Figure 2, the connector 50 adopts a locking mechanism of threaded sleeve 51 and bolt 52. During installation, the threaded sleeve 51 is first passed through the corresponding holes on the connecting part 42 of the brake disc 40 and the connecting piece 30. The bolt 52 is then threadedly connected to the threaded sleeve 51. By tightening the bolt 52, the brake disc 40 and the connecting piece 30 are tightly fixed together. The ends of the threaded sleeve 51 and the bolt 52 are located inside the connecting piece 30 and the connecting part 42, respectively, making the surfaces of the connecting piece 30 and the connecting part 42 smooth and flat.

[0026] In one embodiment, reference is made to Figure 1 and Figure 3 The connecting piece 30 is designed to include an annular portion 31 and a protruding portion 32. When the protruding portion 32 is distributed circumferentially along the annular portion 31, the amount of material used is reduced while ensuring connection strength, further promoting the lightweighting of bicycles. The protruding portion 32 also has a positioning function, enabling more precise alignment between the connecting portion 42 on the brake disc 40 and the connecting piece 30 when installing the brake disc 40.

[0027] In one embodiment, reference is made to Figure 4 The connecting piece 30 has a ring-shaped structure. During the integral molding process, the stress distribution of the material is more uniform, which can better withstand the force from the brake disc 40. At the same time, the continuity of the ring-shaped structure also helps to improve the overall structural stability.

[0028] Reference Figure 5 The inner diameter (R1) of the connecting part 42 is smaller than the outer diameter (R2) of the connecting piece 30, which reduces the hollow area of ​​the brake disc 40. The connecting piece 30 can provide better support for the connecting part 42 of the brake disc 40. During the rotation of the brake disc 40 with the hub 10, the brake contact ring 41 always rotates stably around the central axis. The friction surfaces of the brake caliper and the brake contact ring 41 can make uniform contact. The brake caliper and the connecting piece 30 are close but do not contact each other.

[0029] The implementation principle of a carbon fiber hub and brake disc assembly in this application embodiment is as follows: The one-piece molded connecting piece 30 greatly simplifies the connection between the hub tube 10 and the brake disc 40, reduces the number of parts, reduces assembly complexity, and lightens the overall weight, which is in line with the modern bicycle development trend of pursuing lightweight design. In terms of material selection, the connecting piece 30 and the hub tube 10 are made of carbon fiber, which fully utilizes the lightweight and high-strength characteristics of carbon fiber, further reducing the weight of the components, while ensuring that the components still have good durability and reliability under harsh conditions such as high-speed rotation and frequent braking.

[0030] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A carbon fiber hub and brake disc assembly, characterized in that, include: Flower drum tube (10); The central pivot is rotatably connected to the flower drum cylinder (10); The connecting piece (30) and the drum tube (10) are integrally formed; Brake disc (40), the end face of the brake disc (40) and the end face of the connecting piece (30) are in contact; A connector (50) passes through the brake disc (40) and the connecting piece (30) to fix the brake disc (40) and the connecting piece (30) together.

2. The carbon fiber hub and brake disc assembly according to claim 1, characterized in that, The brake disc (40) includes: Brake contact ring (41); The connecting part (42) is integrally formed with the brake contact ring (41) and is spaced apart on the inner wall of the brake contact ring (41). It is fixedly connected by the connecting piece (50) and the connecting piece (30).

3. The carbon fiber hub and brake disc assembly according to claim 2, characterized in that, The connector (50) includes a threaded sleeve (51) and a bolt (52), the threaded sleeve (51) passing through the connecting part (42) and the connecting piece (30), and the bolt (52) and the threaded sleeve (51) being threadedly connected.

4. The carbon fiber hub and brake disc assembly according to claim 3, characterized in that, The connecting piece (30) includes an annular portion (31) and a protruding portion (32). The protruding portions (32) are distributed circumferentially along the annular portion (31), and the protruding portions (32) and the connecting portions (42) correspond one to one.

5. A carbon fiber hub and brake disc assembly according to claim 3, characterized in that, The connecting piece (30) has a ring-shaped structure.

6. A carbon fiber hub and brake disc assembly according to claim 4 or 5, characterized in that, The inner diameter of the connecting part (42) is smaller than the outer diameter of the connecting piece (30).

7. A carbon fiber hub and brake disc assembly according to claim 1, characterized in that, The connecting piece (30) and the drum tube (10) are integrally molded from carbon fiber material.

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