Low-noise wear-resistant hub structure

Abstract

The low-noise wear-resistant hub structure comprises a hub outer shell, a hub inner shaft is rotationally connected to the interior of the hub outer shell, two first annular mounting plates are fixedly connected to the positions, close to the two sides and the center, in the hub outer shell respectively, and annular plates are fixedly connected to the inner sides of the two first annular mounting plates; and a plurality of sound absorption holes are formed in the annular plate. According to the low-noise wear-resistant hub structure, the annular plate, the sound absorption holes, the sound absorption sponge, the noise reduction rubber net, the sound absorption plate, the sound insulation plate and the sound absorption net are arranged in the hub, a multi-layer noise absorption and isolation structure is constructed, and through the design, noise generated in the riding process can be effectively absorbed and reduced; compared with the prior art, a more quiet riding environment is provided for a rider, meanwhile, noise pollution to the surrounding environment is reduced, and due to the design of the protective layer, especially the combined use of the first wear-resistant coating and the second wear-resistant coating, the wear-resistant performance of the hub shell is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hub structures, in particular to a low-noise, wear-resistant hub structure. Background Art

[0002] In the design of bicycles and other two-wheeled vehicles, the hub is a key component connecting the wheel and the frame, and its performance directly affects the riding experience and service life of the entire vehicle.

[0003] The noise problem has always been a difficult problem in existing hub structures. During riding, the friction and collision of the parts inside the hub will generate noise, which not only affects the mood of the rider, but also may cause noise pollution to the surrounding environment. Especially in urban riding or long-distance riding, the continuous noise will make people feel tired and uncomfortable. Utility Model Content

[0004] The purpose of the utility model is to provide a low-noise and wear-resistant hub structure to solve the problem proposed in the above background technology that during riding, friction and collision of parts inside the hub will generate noise, which not only affects the mood of the rider, but also may cause noise pollution to the surrounding environment. Especially in urban riding or long-distance riding, the continuous noise will make people feel tired and uncomfortable.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-noise and wear-resistant hub structure, comprising a hub shell, an inner hub shaft is rotatably connected to the inside of the hub shell, two annular mounting plates 1 are fixedly connected to the side and center positions of the hub shell, annular plates are fixedly connected to the inner sides of the two annular mounting plates 1, a plurality of sound-absorbing holes are opened inside the annular plates, a sound-absorbing plate is fixedly connected to the bottom position between the two annular mounting plates 1, a sound insulation plate is fixedly connected to the top between the two annular mounting plates 1, a noise-reducing rubber net is fixedly connected between the sound insulation plate and the sound-absorbing plate corresponding to the two annular mounting plates 1, two annular mounting plates 2 are fixedly connected to the inner wall of the hub shell on both sides, a sound-absorbing net is fixedly connected between the two annular mounting plates 2, a protective layer is fixedly connected to the surface of the hub shell, and the protective layer includes a wear-resistant coating 1 and a wear-resistant coating 2.

[0006] Compared with the prior art, the beneficial effects of the utility model are:

[0007] The low-noise and wear-resistant hub structure constructs a multi-level noise absorption and isolation structure by arranging annular plates, sound-absorbing holes, sound-absorbing sponges, noise-reducing rubber nets, sound-absorbing panels, sound-isolating panels and sound-absorbing nets inside the hub. These designs can effectively absorb and reduce the noise generated during riding, provide riders with a quieter riding environment, and reduce noise pollution to the surrounding environment. The design of the protective layer, especially the combined use of wear-resistant coating one and wear-resistant coating two, greatly enhances the wear resistance of the hub shell. The application of ceramic coating and hard alloy coating enables the hub shell to effectively resist wear caused by external factors, significantly prolongs the service life of the hub, and reduces performance degradation and safety hazards caused by wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the structure of the utility model;

[0009] Figure 2 For this utility model Figure 1 A is a partial enlarged schematic diagram;

[0010] Figure 3 This is a structural stereogram of the annular plate of the utility model;

[0011] Figure 4 This is a three-dimensional diagram of the structure of the sound-absorbing net of the utility model;

[0012] Figure 5 This is a structural cross-sectional view of the protective layer of the utility model.

[0013] In the figure: 1. hub shell; 2. hub inner shaft; 3. mounting thread; 4. annular mounting plate 1; 5. annular plate; 6. sound-absorbing holes; 7. sound-absorbing sponge; 8. sound-absorbing board; 9. sound-absorbing groove; 10. sound insulation board; 11. noise-reducing rubber net; 12. annular mounting plate 2; 13. sound-absorbing net; 14. connecting block; 15. protective layer; 16. wear-resistant coating 1; 17. wear-resistant coating 2. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] See also Figure 1-5The utility model provides a technical solution: a low-noise and wear-resistant hub structure, comprising a hub shell 1, wherein the hub shell 1 is rotatably connected to an inner hub shaft 2, two annular mounting plates 4 are fixedly connected to the hub shell 1 at both sides and the center, annular plates 5 are fixedly connected to the inner sides of the two annular mounting plates 4, a plurality of sound-absorbing holes 6 are provided inside the annular plates 5, a sound-absorbing plate 8 is fixedly connected to the bottom position between the two annular mounting plates 4, a sound insulation plate 10 is fixedly connected to the top between the two annular mounting plates 4, a noise-reducing rubber net 11 is fixedly connected between the sound insulation plate 10 and the sound-absorbing plate 8 corresponding to the two annular mounting plates 4, two annular mounting plates 2 12 are fixedly connected to the inner wall of the hub shell 1 at both sides, a sound-absorbing net 13 is fixedly connected between the two annular mounting plates 2 12, and a protective layer 15 is fixedly connected to the surface of the hub shell 1, and the protective layer 15 includes a wear-resistant coating 16 and a wear-resistant coating 2 17.

[0016] Both sides of the inner shaft 2 of the hub are provided with mounting threads 3.

[0017] Sound-absorbing sponges 7 are fixedly connected to both sides of the sound-absorbing hole 6, which enhances the sound-absorbing capacity of the hub structure, can effectively absorb and reduce the noise generated during riding, provide a quieter riding environment for the rider, and also reduce noise pollution to the surrounding environment.

[0018] A plurality of sound absorbing grooves 9 are provided inside the sound absorbing plate 8 .

[0019] The two annular mounting plates 12 are fixedly connected to the opposite sides thereof with connecting blocks 14, and the side of the connecting block 14 away from the annular mounting plate 12 is fixedly connected to the side of the annular mounting plate 14, thereby enhancing the stability and firmness of the entire hub structure.

[0020] The wear-resistant coating 16 is a ceramic coating, which can effectively resist the wear of the hub shell 1 by external factors, significantly extend the service life of the hub, and reduce performance degradation and safety hazards caused by wear.

[0021] The wear-resistant coating 17 is a hard alloy coating, which can effectively enhance the wear resistance of the hub shell 1, so that the hub can maintain a good working condition and performance even in harsh environments.

[0022] Working principle: During riding, the inner shaft 2 of the hub rotates inside the hub shell 1 to drive the wheel forward. When the hub is working, noise is generated due to the friction and impact of the internal parts. The noise is first absorbed by the sound-absorbing holes 6 and the sound-absorbing sponge 7 on the annular plate 5, reducing the propagation of part of the noise. Then, the noise is transmitted between the sound-absorbing plate 8 and the sound insulation plate 10, and is further absorbed and isolated by the noise-reducing rubber net 11. At the same time, the sound-absorbing net 13 reduces the noise.

[0023] In summary: the low-noise and wear-resistant hub structure constructs a multi-level noise absorption and isolation structure by arranging an annular plate 5, sound-absorbing holes 6, sound-absorbing sponge 7, noise-reducing rubber net 11, sound-absorbing board 8, sound insulation board 10 and sound-absorbing net 13 inside the hub. These designs can effectively absorb and reduce the noise generated during riding, provide a quieter riding environment for riders, and reduce noise pollution to the surrounding environment. The design of the protective layer 15, especially the combined use of wear-resistant coating 1 16 and wear-resistant coating 2 17, greatly enhances the wear resistance of the hub shell 1. The application of ceramic coating and cemented carbide coating enables the hub shell 1 to effectively resist wear caused by external factors, significantly extends the service life of the hub, and reduces performance degradation and safety hazards caused by wear.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-noise, wear-resistant hub structure, comprising a hub shell (1), characterized in that: The hub shell (1) is rotatably connected to the hub inner shaft (2), and two annular mounting plates (4) are fixedly connected to the hub shell (1) at both sides and the center, and an annular plate (5) is fixedly connected to the inner side of the two annular mounting plates (4), and a plurality of sound absorbing holes (6) are provided inside the annular plate (5), and a sound absorbing plate (8) is fixedly connected to the bottom between the two annular mounting plates (4), and a sound insulation plate (1) is fixedly connected to the top between the two annular mounting plates (4). 0), a noise reduction rubber net (11) is fixedly connected between the two corresponding annular mounting plates (4) between the sound insulation board (10) and the sound absorbing board (8), two annular mounting plates (12) are fixedly connected to the inner wall of the hub shell (1) at both sides, a sound absorbing net (13) is fixedly connected between the two annular mounting plates (12), and a protective layer (15) is fixedly connected to the surface of the hub shell (1), and the protective layer (15) includes a wear-resistant coating (16) and a wear-resistant coating (17).

2. A low-noise, wear-resistant hub structure according to claim 1, characterized in that: Both sides of the hub inner shaft (2) are provided with mounting threads (3).

3. The low-noise and wear-resistant hub structure according to claim 1, characterized in that: Sound-absorbing sponges (7) are fixedly connected to both sides of the sound-absorbing hole (6).

4. The low-noise and wear-resistant hub structure according to claim 1, characterized in that: A plurality of sound absorbing grooves (9) are provided inside the sound absorbing plate (8).

5. The low-noise, wear-resistant hub structure according to claim 1, characterized in that: The two annular mounting plates 2 (12) are both fixedly connected to a connecting block (14) on their opposite sides, and the connecting block (14) is fixedly connected to one side of the annular mounting plate 1 (4) on a side away from the annular mounting plate 2 (12).

6. The low-noise, wear-resistant hub structure according to claim 1, characterized in that: The wear-resistant coating (16) is a ceramic coating.

7. The low-noise, wear-resistant hub structure according to claim 1, characterized in that: The wear-resistant coating 2 (17) is a hard alloy coating.

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