CN219769532U - Mute hub - Google Patents

Abstract

The utility model belongs to the technical field of tire silence, and particularly relates to a silence hub. The utility model comprises a rim and a sound absorbing part, wherein the sound absorbing part is fastened on the surface of the rim through an elastic layer. The utility model can realize the convenient disassembly and assembly functions of the sound absorbing material in the tire on the premise of ensuring the reduction of the noise of the tire cavity, is very flexible to use, and can effectively ensure the service life.

Description

Mute hub

Technical Field

The utility model belongs to the technical field of tire silence, and particularly relates to a silence hub.

Background

In recent years, with the popularization of automobiles, consumers have put higher demands on the use comfort of automobiles, wherein the reduction of the resonance noise of a tire cavity is a very important index. The tire cavity resonance noise is noise caused by the excitation of a road surface input and resonance of an ultra-low pressure acoustic system constituted by a tire and a disc wheel, and is also generally called tire resonance noise. The cavity noise frequency is between 200-300Hz, determined by the tire cavity structure. During running, the cavity resonance frequency can be separated into two, two sharp peaks are generated, and the generated sound pressure presses the eardrum, so that the driver and the passengers are very uncomfortable. The most common technique for reducing the cavity noise of a tire is to adhere a sound absorbing material such as sponge to the inner wall of the tread of the tire so as to absorb the cavity noise, and thus, a mute tire in the market is obtained. Although this method can effectively reduce the cavity noise of the tire, the following problems still remain: firstly, the prior art adopts that glue is smeared on the inner wall of a rubber tread, and then a sound absorbing material is attached, and in the state, the sound absorbing material has no tension. When a belt-shaped sound absorbing material is adhered to the inner surface of the tire in a region corresponding to the tread portion, the adhesive layer for fixing the sound absorbing material is softened or deteriorated by heat generation in association with running of the tire, and then there is a problem that the sound absorbing material is easily peeled off from the tread. Secondly, after the tire is punctured with the tread, the tire needs to be polished and repaired, and the original sound absorbing material needs to be removed at the moment, so that the original sound absorbing material is irreversibly damaged, the noise reduction effect of the tire is lost, and the tire is a great problem to be solved in the traditional silent tire.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art, and provides a mute wheel hub which can realize the convenient disassembly and assembly functions of sound absorbing materials in a tire on the premise of ensuring the reduction of the noise of a tire cavity, is very flexible to use and can effectively ensure the service life.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a silence wheel hub, includes rim, its characterized in that: the novel rim further comprises a sound absorbing part, and the sound absorbing part is fastened at the surface of the rim through an elastic layer.

Preferably, the sound absorbing portion is made of a sound absorbing sponge.

Preferably, the elastic layer is an elastic loop; the sound absorbing part is fixed on the inner wall and/or the outer wall of the elastic layer in an attached mode.

Preferably, the elastic layer is an elastic rubber sleeve or an annular spring or an annular telescopic rope.

Preferably, a gap is provided between two adjacent sound absorbing portions in the circumferential direction of the rim.

Preferably, the sound absorbing parts are uniformly distributed along the rim Zhou Xiangyi, and adjacent ends of two adjacent sound absorbing parts are connected with each other through an elastic connecting section forming an elastic layer.

Preferably, the elastic layer is an elastic rubber section or a tension spring or an elastic telescopic rope.

The utility model has the beneficial effects that:

1) The utility model discloses a novel noise-reducing structure based on a hub, which is characterized in that the conventional inherent thinking cangue lock with a sound-absorbing structure necessarily adhered to a tread part is abandoned, and the novel noise-reducing structure based on the hub is provided from the hub. In actual operation, the high elasticity of the elastic layer can ensure that the sound absorbing part is firmly fixed at the rim; meanwhile, as the sound absorbing part with fragile texture is far away from the tread part with high vibration and high heating, the service life of the sound absorbing part can be effectively ensured. And when the tire needs to be ground and repaired, the tire is only subjected to the tread treatment process, and the rim part is not required to be used. Even if the hub is sometimes problematic and the utility model needs to be temporarily disassembled and assembled, the elastic layer and the sound absorbing part positioned on the elastic layer can be integrally removed only by overcoming the high elasticity of the elastic layer, so that the use is convenient and quick.

In conclusion, the utility model can realize the convenient disassembly and assembly functions of the sound absorbing material in the tire on the premise of ensuring the reduction of the noise of the tire cavity, is very flexible to use and can effectively ensure the service life.

Drawings

FIG. 1 is a schematic perspective view of one embodiment of the present utility model;

FIG. 2 is a side view of the structure shown in FIG. 1;

fig. 3 is a cross-sectional view of the structure shown in fig. 2.

The actual correspondence between each label and the component name of the utility model is as follows:

10-rim; 20-a sound absorbing part; 30-an elastic layer.

Detailed Description

For ease of understanding, the specific structure and operation of the present utility model will be further described herein with reference to FIGS. 1-3:

one embodiment of the present utility model is constructed in such a manner that the elastic rubber sleeve is externally attached with a mute sponge, as shown in fig. 1 to 3. In this structure, it can be seen that the elastic rubber sleeve constituting the elastic layer 30 itself plays a role of tightening and positioning to ensure that the whole can be tightened on the rim 10 under the elastic action, and finally achieves the purpose of joining the sound absorbing portion 20 as a mute sponge band with the hub. Of course, in further design, the elastic rubber sleeve may be replaced by an annular spring or an annular expansion rope, and the like, so long as the tightening effect on the rim 10 is ensured.

Meanwhile, in fig. 3, it is apparent that the sound absorbing part 20 is attached to the outer wall of the elastic layer 30 in pieces; in practical design, the sound absorbing portion 20 may be disposed on the inner wall of the elastic layer 30, and even distributed uniformly inside and outside to form a sandwich structure, which is all feasible. Further preferably, the sound absorbing portion 20 may be implemented in various ways, such as a porous plate made of sound absorbing rubber or other sound absorbing structure. The sound absorbing part 20 is preferably formed by adopting a sound absorbing sponge material, so that the cost performance of installation and use requirements can be ensured. In design, the sound absorbing portion 20 of the sound absorbing sponge material may have a two-segment, three-segment, four-segment or other layout structure, and the number of the sound absorbing portions may be designed according to the site situation, so as to meet the design parameter requirements and achieve the initially defined design purpose.

The above is an embodiment of a unitary elastomeric layer structure.

In addition, for the combination of the elastic layer 30 and the sound absorbing portion 20, the present utility model also provides another segmented elastic layer structure: that is, after the sectional sound absorbing portion 20 is adopted, adjacent ends of the sound absorbing portion 20 are joined by means of the elastic connection sections arranged in a small area, so that an arrangement structure of the elastic connection sections, the sound absorbing portion 20, the elastic connection sections and a continuous lock chain type of the sound absorbing portion 20 is formed, and the mute effect can be ensured while the elastic tightening function is ensured. Similarly, the elastic connection section may be formed by a tension spring or an elastic expansion rope, except for the elastic material such as an elastic rubber section, which will not be described herein.

It will be understood by those skilled in the art that the present utility model is not limited to the details of the above-described exemplary embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

The technology, shape, and construction parts of the present utility model, which are not described in detail, are known in the art.

Claims (7)

1. A silent wheel hub comprising a rim (10), characterized in that: the novel wheel rim comprises a rim body and is characterized by further comprising a sound absorbing part (20), wherein the sound absorbing part (20) is fastened and fixed on the surface of the rim (10) through an elastic layer (30); so that the sound absorbing part (20) is directly attached to the surface of the rim (10), or the sound absorbing part (20), the elastic layer (30) and the surface of the rim (10) form a three-layer laminated structure from top to bottom.

2. A mute hub as claimed in claim 1, wherein: the sound absorbing part (20) is made of sound absorbing sponge.

3. A mute hub as claimed in claim 1 or 2, wherein: the elastic layer (30) is an elastic ring sleeve, and the sound absorbing part (20) is fixed on the inner wall and/or the outer wall of the elastic layer (30) in an attached mode.

4. A mute hub as claimed in claim 3, wherein: the elastic layer (30) is an elastic rubber sleeve or an annular spring or an annular telescopic rope.

5. A mute hub as claimed in claim 3, wherein: a gap exists between two adjacent sound absorbing parts (20) in the circumferential direction of the rim (10).

6. A mute hub as claimed in claim 1 or 2, wherein: the sound absorbing parts (20) are uniformly distributed along the rim (10) Zhou Xiangyi, and adjacent ends of two adjacent sound absorbing parts (20) are connected with each other through an elastic connecting section forming an elastic layer (30).

7. A mute hub as claimed in claim 6, wherein: the elastic layer (30) is an elastic rubber section or a tension spring or an elastic telescopic rope.