Hub with efficient noise reduction effect

Abstract

The hub with the efficient noise reduction effect comprises a supporting frame, a rim is fixedly connected to the outer side of the supporting frame, a noise reduction mechanism is arranged on the outer side of the rim, the noise reduction mechanism comprises sound absorption rings, the sound absorption rings are symmetrically arranged on the outer side of the rim in a sleeved mode, and the noise reduction mechanism is arranged on the outer side of the rim. And connecting rods are fixedly connected between the two sound absorption coils in a circumferential array. According to the hub with the efficient noise reduction effect, air in a tire vibrates and generates noise, kinetic energy of air vibration is absorbed by the sound absorption ring, and the sound absorption ring is made of polyurethane sponge and has good elasticity, flexibility and durability, so that the shape and the function of the sound absorption ring can be kept for a long time in the running process of an automobile, and the service life of the automobile is prolonged. Sound absorption and noise reduction are continuously carried out, sound waves can be effectively captured and absorbed through the first sound absorption groove, the second sound absorption groove and the perforated structure, reflection and reverberation of the sound in a room are reduced, and auxiliary absorption can be carried out on the sound generated by vibration.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel hub noise reduction, and particularly relates to a wheel hub with an efficient noise reduction effect. Background Art

[0002] A wheel hub, also known as a rim, is a cylindrical part on the outer contour of a tire used to support the tire and is centrally assembled on an axle. Common automotive wheel hubs include steel wheel hubs and aluminum alloy wheel hubs. Compared with steel automotive wheel hubs, aluminum alloy wheel hubs have the advantages of low density and high thermal conductivity.

[0003] After retrieval, a high-strength wheel hub that is convenient for cleaning (authorized announcement number: CN 215097486 U), "comprises a rim, a main spoke, and a sub-spoke assembly. The main spoke is fixedly installed inside the rim, and a sub-spoke assembly is arranged on the main spoke. Guide strips are fixedly connected to one side of the spokes of the main spoke close to the outside of the rim. The sub-spoke assembly includes a sub-spoke cover, a synchronizing ring, and sub-spokes. The structure of the utility model is novel, and it solves the problem that traditional automotive wheel hubs are not convenient to clean after being sticky with a large amount of dust or brake powder, especially dirt such as mixed sludge, during a long time process, which seriously affects the aesthetics of the wheel hub and is suitable for popularization."

[0004] According to the above related technologies, the applicant believes that the existing wheel hubs lack a noise reduction mechanism. During the driving process of an automobile, due to the vibration of the air inside the tire, noise is generated, and the noise enters the cab through propagation, which will affect the driving experience of the driver. In view of the above problems, we have introduced a wheel hub with an efficient noise reduction effect. Summary of the Utility Model

[0005] The utility model discloses a wheel hub with an efficient noise reduction effect, aiming to solve the technical problem that the existing wheel hubs lack a noise reduction mechanism. During the driving process of an automobile, due to the vibration of the air inside the tire, noise is generated, and the noise enters the cab through propagation, which will affect the driving experience of the driver.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A wheel hub with an efficient noise reduction effect includes a support frame. A rim is fixedly connected to the outside of the support frame. A noise reduction mechanism is arranged on the outside of the rim. The noise reduction mechanism includes a sound absorption ring. The sound absorption rings are symmetrically sleeved on the outside of the rim. Connecting rods are fixedly connected between the two sound absorption rings in a circumferential array. Connecting plates are fixedly connected to the inner wall of the sound absorption ring in a circumferential array. The connecting plates are fixedly connected to the outer wall of the rim.

[0008] In a preferred embodiment, the outer walls of the two sound-absorbing rings are each provided with first sound-absorbing grooves in a circumferential array, and the inner walls of the two sound-absorbing rings are each provided with second sound-absorbing grooves in a circumferential array. The first sound-absorbing grooves and the second sound-absorbing grooves are used in cooperation with each other.

[0009] In a preferred embodiment, the sound-absorbing ring is made of polyurethane sponge with good sound-absorbing effect.

[0010] In a preferred embodiment, a sound-absorbing rubber pad is fixedly connected to the inner wall of the wheel rim.

[0011] In a preferred embodiment, ventilation grooves are provided in a circumferential array inside the two sound-absorbing rings.

[0012] In a preferred embodiment, threaded holes are provided in a circumferential array inside the support frame, and the threaded holes are used in cooperation with external bolts.

[0013] A hub with an efficient noise reduction effect provided by the present utility model has the following advantages:

[0014] First, the air inside the tire vibrates to generate noise. The kinetic energy of the air vibration is absorbed by the sound-absorbing ring. Since the sound-absorbing ring is made of polyurethane sponge, it has good elasticity, flexibility and durability, and can maintain its shape and function for a long time during the driving of the vehicle, continuously absorbing and reducing noise. Through the provided first sound-absorbing grooves and second sound-absorbing grooves, the porous structure can effectively capture and absorb sound waves, reduce the reflection and reverberation of sound in the room, and can assist in absorbing the sound generated by vibration.

[0015] Second, through the provided ventilation grooves, air can flow inside the ventilation grooves, reducing the air flow speed and assisting in noise reduction. At the same time, noise is generated by the friction between the tire and the wheel rim, and the noise is transmitted to the support frame through the wheel rim. Through the provided sound-absorbing rubber pad, the noise generated by the friction between the tire and the wheel rim during driving can be reduced, further reducing noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. is a three-dimensional schematic diagram of a hub with an efficient noise reduction effect proposed by the present utility model.

[0017] Figure 2 FIG. is a three-dimensional schematic diagram of a hub with an efficient noise reduction effect proposed by the present utility model.

[0018] Figure 3 FIG. is a three-dimensional schematic diagram of the noise reduction mechanism of a hub with an efficient noise reduction effect proposed by the present utility model.

[0019] Figure 4Schematic diagram of a three-dimensional upward perspective section of a noise reduction mechanism for a wheel hub with high-efficiency noise reduction effect proposed by the present utility model.

[0020] Figure 5 A wheel hub with high-efficiency noise reduction effect proposed by the present utility model Figure 1 Enlarged schematic diagram at position A.

[0021] In the attached drawings: 1, support frame; 2, rim; 3, sound-absorbing ring; 4, connecting plate; 5, ventilation groove; 6, connecting rod; 7, first sound-absorbing groove; 8, threaded hole; 9, sound-absorbing rubber pad; 10, second sound-absorbing groove. Specific implementation manner

[0022] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Usually, the components of the embodiments of the present application described and marked in the attached drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the attached drawings is not intended to limit the scope of the present application to be protected, but only represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0023] Refer to Figure 1 - Figure 5 A wheel hub with high-efficiency noise reduction effect includes a support frame 1. A rim 2 is fixedly connected to the outside of the support frame 1. A noise reduction mechanism is provided outside the rim 2. The noise reduction mechanism includes a sound-absorbing ring 3. The sound-absorbing rings 3 are symmetrically sleeved outside the rim 2. Connecting rods 6 are fixedly connected in a circumferential array between the two sound-absorbing rings 3. Connecting plates 4 are fixedly connected in a circumferential array on the inner wall of the sound-absorbing ring 3. The connecting plates 4 are fixedly connected to the outer wall of the rim 2. First sound-absorbing grooves 7 are formed in a circumferential array on the outer walls of the two sound-absorbing rings 3. Second sound-absorbing grooves 10 are formed in a circumferential array on the inner walls of the two sound-absorbing rings 3. The first sound-absorbing grooves 7 and the second sound-absorbing grooves 10 are used in cooperation. The sound-absorbing ring 3 is made of polyurethane sponge with good sound-absorbing effect.

[0024] In the above technical solution, considering the problem that existing wheel hubs lack a noise reduction mechanism, during the driving of an automobile, due to the vibration of the air inside the tire, noise is generated, and the noise enters the cab through transmission, which will affect the driving experience of the driver. To solve such problems, the specific operations are as follows:

[0025] Refer to Figure 1 - Figure 5, in a preferred embodiment, the air inside the tire vibrates to generate noise. The kinetic energy of the air vibration is absorbed by the sound-absorbing ring 3. Since the sound-absorbing ring 3 is made of polyurethane sponge, it has good elasticity, flexibility and durability, and can maintain its shape and function for a long time during the driving of the vehicle, continuously absorbing sound and reducing noise. Through the provided first sound-absorbing groove 7 and second sound-absorbing groove 10, the perforated structure can effectively capture and absorb sound waves, reduce the reflection and reverberation of sound in the room, and can assist in absorbing the sound generated by vibration.

[0026] Refer to Figure 1 - Figure 5 , in a preferred embodiment, a sound-absorbing rubber pad 9 is fixedly connected to the inner wall of the rim 2. Ventilation grooves 5 are arranged in a circumferential array inside both of the two sound-absorbing rings 3. Threaded holes 8 are arranged in a circumferential array inside the support frame 1, and the threaded holes 8 are used in cooperation with external bolts. Through the provided ventilation grooves 5, air can flow inside the ventilation grooves 5, reducing the air flow speed and assisting in noise reduction. At the same time, noise is generated by the friction between the tire and the rim 2, and the noise is transmitted to the support frame 1 through the rim 2. Through the provided sound-absorbing rubber pad 9, the noise generated by the friction between the tire and the rim 2 during driving can be reduced, further reducing noise.

[0027] Working principle: When the vehicle is driving, after the tire is squeezed, the air inside the tire vibrates to generate noise. The kinetic energy of the air vibration is absorbed by the sound-absorbing ring 3. Since the sound-absorbing ring 3 is made of polyurethane sponge, it has good elasticity, flexibility and durability, and can maintain its shape and function for a long time during the driving of the vehicle, continuously absorbing sound and reducing noise. Through the provided first sound-absorbing groove 7 and second sound-absorbing groove 10, the perforated structure can effectively capture and absorb sound waves, reduce the reflection and reverberation of sound in the room, and can assist in absorbing the sound generated by vibration. Through the provided ventilation grooves 5, air can flow inside the ventilation grooves 5, reducing the air flow speed and assisting in noise reduction. At the same time, noise is generated by the friction between the tire and the rim 2, and the noise is transmitted to the support frame 1 through the rim 2. Through the provided sound-absorbing rubber pad 9, the noise generated by the friction between the tire and the rim 2 during driving can be reduced, further reducing noise.

[0028] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. The substitution may be the substitution of part of the structure, device, method steps, or a complete technical solution. Any equivalent substitution or change made according to the technical solution of the present invention and its inventive concept should be covered within the protection scope of the present invention.

Claims

1. A hub with an efficient noise reduction effect, including a support frame (1), characterized in that: A rim (2) is fixedly connected to the outside of the support frame (1). A noise reduction mechanism is provided on the outside of the rim (2). The noise reduction mechanism includes a sound absorption ring (3). The sound absorption rings (3) are symmetrically sleeved on the outside of the rim (2). Connecting rods (6) are fixedly connected between the two sound absorption rings (3) in a circumferential array. Connecting plates (4) are fixedly connected to the inner wall of the sound absorption ring (3) in a circumferential array. The connecting plates (4) are fixedly connected to the outer wall of the rim (2).

2. A hub with an efficient noise reduction effect according to claim 1, characterized in that: First sound absorption grooves (7) are formed in the outer walls of the two sound absorption rings (3) in a circumferential array. Second sound absorption grooves (10) are formed in the inner walls of the two sound absorption rings (3) in a circumferential array. The first sound absorption grooves (7) and the second sound absorption grooves (10) are used in cooperation with each other.

3. A hub with an efficient noise reduction effect according to claim 1, characterized in that: The sound absorption ring (3) is made of polyurethane sponge with good sound absorption effect.

4. A hub with an efficient noise reduction effect according to claim 1, characterized in that: A sound absorption rubber pad (9) is fixedly connected to the inner wall of the rim (2).

5. A hub with an efficient noise reduction effect according to claim 1, characterized in that: Ventilation grooves (5) are formed in the two sound absorption rings (3) in a circumferential array.

6. The hub with an efficient noise reduction effect according to claim 1, wherein: Threaded holes (8) are formed in the support frame (1) in a circumferential array. The threaded holes (8) are used in cooperation with external bolts.

Images