CN219452431U

CN219452431U - Noise-reducing rubber ring suitable for high-speed motor

Info

Publication number: CN219452431U
Application number: CN202223003170.4U
Authority: CN
Inventors: 贺寅; 王世伟
Original assignee: Danyang Baisheng Electric Appliance Co ltd
Current assignee: Danyang Baisheng Electric Appliance Co ltd
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-08-01
Anticipated expiration: 2032-11-11

Abstract

The utility model discloses a silencing rubber ring suitable for a high-speed motor, which comprises an upper rubber ring part and a lower rubber ring part which are arranged in a stepped manner, wherein the inner diameter of the lower rubber ring part is larger than the outer diameter of the upper rubber ring part; the inner concave ring groove is arranged at the lower end of the upper rubber ring part, and the depth of the inner concave ring groove is more than 2/3 of the height of the upper rubber ring part; the silencing inner bushing is embedded in the inner concave ring groove, and silencing meshes are formed in the surface of the silencing inner bushing; the plurality of convex arc-striking rings are arranged on the inner wall of the upper rubber ring part, and the convex arc-striking rings are vertically spaced. According to the utility model, the upper rubber ring part and the lower rubber ring part are arranged in a stepped manner, the silencing inner bushing is embedded in the upper rubber ring part, so that the noise absorption capacity is improved, meanwhile, the convex arc ring of the inner wall is matched, a gap is reserved, the noise is absorbed, the multistage silencing is realized, the use positioning is enhanced, the quality is ensured to be reliable, and the trouble that the rubber ring in the past has poor positioning performance and weak noise absorption capacity in the use of a high-speed motor is avoided.

Description

Noise-reducing rubber ring suitable for high-speed motor

Technical Field

The utility model belongs to the technical field of impeller shaft rubber rings, and particularly relates to a silencing rubber ring suitable for a high-speed motor.

Background

The high-speed impeller of the direct current fan is currently applied to various fields, and when the direct current fan is specifically installed, an impeller shaft extends out of a motor installation shell and is in butt joint with a driving impeller, and in the process, a gap exists, a sealing ring is sleeved at the gap, the impeller shaft is sealed, and the sealing between the impeller and the installation shell is realized.

The rubber sealing ring in the prior art has a simple structure and is in a single column shape, after being sleeved, after a period of use, the rubber is worn, aged and the spring force is reduced, so that the positioning property is lost, the noise is leaked, the sealing performance is completely ineffective, larger noise is generated, great trouble is brought to the use, the service life of the rubber sealing ring is greatly shortened, and the maintenance rate of using equipment is increased.

Disclosure of Invention

In view of the above, the technical problem to be solved by the utility model is to provide a silencing rubber ring suitable for a high-speed motor, an upper rubber ring part and a lower rubber ring part are arranged through steps, a silencing inner bushing is embedded in the upper rubber ring part, so that the noise absorption capacity is improved, meanwhile, the silencing rubber ring is matched with a convex arc ring of the inner wall, a gap is reserved, the noise is absorbed, multistage silencing is realized, the use positioning is enhanced, the quality is ensured to be reliable, and the trouble that the conventional rubber ring has poor positioning performance and weak noise absorption capacity in the use of the high-speed motor is avoided.

In order to solve the technical problems, the utility model discloses a silencing rubber ring suitable for a high-speed motor, which comprises an upper rubber ring part and a lower rubber ring part which are arranged in a stepped manner, wherein the inner diameter of the lower rubber ring part is larger than the outer diameter of the upper rubber ring part;

the inner concave ring groove is arranged at the lower end of the upper rubber ring part, and the depth of the inner concave ring groove is more than 2/3 of the height of the upper rubber ring part;

the silencing inner bushing is embedded in the inner concave ring groove, and silencing meshes are formed in the surface of the silencing inner bushing;

the plurality of convex arc-striking rings are arranged on the inner wall of the upper rubber ring part, and the convex arc-striking rings are vertically spaced.

According to an embodiment of the present utility model, an epoxy sealing glue is filled between the silencing inner liner and the inner concave ring groove.

According to an embodiment of the present utility model, the silencing inner liner is provided as a TPV silicone sleeve.

According to an embodiment of the present utility model, the noise-reducing inner liner is provided as a carbon fiber sleeve.

According to an embodiment of the present utility model, a rectangular ring groove is provided at a lower end of an inner wall of the upper rubber ring portion.

According to an embodiment of the present utility model, a rounded boss with a smaller outer diameter is provided at an upper end of the upper rubber ring portion.

Compared with the prior art, the utility model can obtain the following technical effects:

the upper rubber ring part and the lower rubber ring part are arranged through the steps, the silencing inner bushing is embedded in the upper rubber ring part, the noise absorption capacity is improved, meanwhile, the protruding arc ring of the inner wall is matched, gaps are reserved, noise is absorbed, multistage silencing is achieved, the use positioning is enhanced, the quality is guaranteed to be reliable, and the problems that the rubber ring is poor in positioning performance and weak in noise absorption capacity in the use of a high-speed motor in the past are avoided.

Of course, it is not necessary for any one product embodying the utility model to achieve all of the technical effects described above at the same time.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

fig. 1 is a schematic view of a noise damping rubber ring suitable for a high-speed motor according to an embodiment of the present utility model.

Reference numerals

The rubber ring comprises an upper rubber ring part 10, a lower rubber ring part 20, an inner concave ring groove 30, a silencing inner bushing 40, a convex arc ring 50, a rectangular ring groove 60 and a round boss 70.

Detailed Description

The following detailed description of embodiments of the present utility model will be given with reference to the accompanying drawings and examples, by which the implementation process of how the present utility model can be applied to solve the technical problems and achieve the technical effects can be fully understood and implemented.

Referring to fig. 1, fig. 1 is a schematic view of a noise damping rubber ring suitable for a high-speed motor according to an embodiment of the utility model.

As shown in the drawings, a noise-damping rubber ring suitable for a high-speed motor includes an upper rubber ring part 10 and a lower rubber ring part 20 arranged in a stepped manner, the inner diameter of the lower rubber ring part 20 being greater than the outer diameter of the upper rubber ring part 10; the inner concave ring groove 30 is arranged at the lower end of the upper rubber ring part 10, and the depth of the inner concave ring groove 30 is more than 2/3 of the height of the upper rubber ring part 10; the silencing inner bushing 40 is embedded in the inner concave ring groove 30, and silencing meshes are formed in the surface of the silencing inner bushing 40; the plurality of convex arc rings 50 are arranged on the inner wall of the upper rubber ring part 10, and the convex arc rings 50 are vertically spaced.

In an embodiment of the present utility model, the upper rubber ring portion 10 and the lower rubber ring portion 20 are arranged in a stepped manner, so that the sleeve mounting of the motor shaft and the sleeve bracket is facilitated, and in addition, the inner diameter of the lower rubber ring portion 20 is larger than the outer diameter of the upper rubber ring portion 10, so that the inner hole is formed in a stepped manner, and the assembly of the motor shaft is also facilitated. The concave ring groove 30 extends upwards from the lower end of the upper rubber ring part 10, and the depth of the concave ring groove is larger than 2/3 of the height of the upper rubber ring part 10 and does not penetrate through the concave ring groove, so that the concave ring groove is used for embedding and installing the silencing inner liner 40, and further silencing of the inner wall is realized. Specifically, the surface of the noise-deadening inner liner 40 is provided with noise-deadening mesh holes, arranged densely, or arranged in a honeycomb shape, through which noise can be effectively absorbed. In addition, a plurality of convex arc rings 50 are arranged on the inner wall of the upper rubber ring part 10, so that friction can be increased, assembly toughness is improved, installation is more stable, and sealing performance is better; on the other hand, the extrusion gap can be provided, and the sound absorption is further facilitated.

Preferably, the convex arc ring 50 is arranged in three ways which are vertically spaced, so as to realize three-level sealing protection.

The epoxy sealing glue is filled between the silencing inner bushing 40 and the inner concave ring groove 30, so that the silencing inner bushing 40 and the upper rubber ring part 10 are in sealing connection, the adhesiveness and the sealing performance are enhanced, and the matching is tighter.

In a preferred embodiment, the silencing inner liner 40 is a TPV silicone sleeve, and is in soft fit connection, so that the overall silencing effect is good.

In another embodiment, the silencing inner liner 40 is a carbon fiber sleeve, is hard to be connected in a matching manner, can enhance the compression resistance and wear resistance on the basis of silencing, is not easy to deform, and has high durability.

The lower end of the inner wall of the upper rubber ring part 10 is provided with the rectangular ring groove 60, which is changed in a stepped groove shape with the bottom of the upper rubber ring part 10, so that the assembly toughness can be enhanced, and in addition, a sealing ring can be added to ensure sealing.

The upper end of the upper rubber ring part 10 is provided with a round corner boss 70 with smaller outer diameter, which is convenient for abutting against the external bracket and reinforcing and installing stably.

In summary, the upper rubber ring part 10 and the lower rubber ring part 20 are arranged in a stepped manner, the silencing inner bushing 40 is embedded in the upper rubber ring part 10, so that the noise absorption capacity is improved, meanwhile, the convex arc ring 50 of the inner wall is matched, a gap is reserved, the noise is absorbed, multistage silencing is realized, the use positioning is enhanced, the quality is ensured to be reliable, and the trouble that the conventional rubber ring has poor positioning performance and weak noise absorption capacity in the use of a high-speed motor is avoided.

While the foregoing description illustrates and describes the preferred embodiments of the present utility model, it is to be understood that the utility model is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, and is capable of numerous other combinations, modifications and environments and is capable of changes or modifications within the scope of the inventive concept as described herein, either as a result of the foregoing teachings or as a result of the knowledge or technology in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.

Claims

1. Amortization rubber circle suitable for high-speed motor, its characterized in that includes:

the inner diameter of the lower rubber ring part is larger than the outer diameter of the upper rubber ring part;

the plurality of convex arc rings are arranged on the inner wall of the upper rubber ring part, and the convex arc rings are vertically spaced.

2. The noise-damping rubber ring for high-speed motor according to claim 1, wherein an epoxy sealing glue is filled between the noise-damping inner bushing and the inner concave ring groove.

3. The noise-damping rubber ring for high-speed motor according to claim 1, wherein the noise-damping inner liner is provided as a TPV silicone sleeve.

4. The noise-damping rubber ring for high-speed motor according to claim 1, wherein the noise-damping inner liner is provided as a carbon fiber sleeve.

5. The noise-reducing rubber ring for high-speed motor according to claim 1, wherein a rectangular ring groove is provided at a lower end of an inner wall of the upper rubber ring portion.

6. The noise-reducing rubber ring for high-speed motor according to claim 1, wherein the upper end of the upper rubber ring portion is provided with a rounded boss.