CN203685878U - Noise-reduction bearing - Google Patents
Noise-reduction bearing Download PDFInfo
- Publication number
- CN203685878U CN203685878U CN201420045009.XU CN201420045009U CN203685878U CN 203685878 U CN203685878 U CN 203685878U CN 201420045009 U CN201420045009 U CN 201420045009U CN 203685878 U CN203685878 U CN 203685878U
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- China
- Prior art keywords
- ring
- noise
- noise reduction
- bearing
- reduction
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Rolling Contact Bearings (AREA)
- Sealing Of Bearings (AREA)
Abstract
The utility model discloses a noise-reduction bearing. The noise-reduction bearing comprises a bearing inner ring, a bearing outer ring and a sealing ring fixed on the bearing outer ring, wherein the sealing ring comprises a rubber sealing ring and an annular sealing framework fixedly connected with the rubber sealing ring; the noise-reduction bearing is characterized in that the annular sealing framework is embedded in one side of the rubber sealing ring and one surface of the annular sealing framework is exposed outside; a plurality of hemispheric bulges are arranged on the surface, opposite to the annular sealing framework, of the rubber sealing ring; vertexes of the hemispheric bulges are resisted against the annular sealing framework, and a noise-reduction cavity is formed between two adjacent hemispheric bulges; spherical surfaces of the hemispheric bulges are coated with noise-reduction paint; a through hole communicated with the noise-reduction cavity with the outer part is formed in the annular sealing framework. The noise-reduction bearing disclosed by the utility model can transfer noises generated by the bearing into the noise-reduction cavity through the through hole in the sealing framework, so that the noises can repeatedly spread in the noise-reduction cavity and are absorbed by the noise-reduction paint with which the surfaces of the hemispheric bulges are coated, and therefore, the noise-reduction effect is achieved.
Description
Technical field
The utility model relates to Bearing fittings, and more particularly, it relates to a kind of noise reduction bearing.
Background technique
Bearing is in mechanical transmission course, to work the parts of fixing and reducing load friction factor.Also can say, in the time that other parts produce relative movement each other on axle, be used for reducing the fixing parts of friction factor and retainer shaft central position in power transmission process.Bearing is a kind of very important component in contemporary machinery, and its major function is supported mechanical solid of rotation, the mechanical load friction factor in order to reduction equipment in transmission process.Bearing is a kind of widely used component of machine, no matter be aircraft, automobile, boats and ships, lathe, motor, or household electric appliance etc., every place that has swivel bearing, all be unable to do without bearing.
Bearing sealed ring is the main obturator in bearing, not only lubricating grease is kept in bearing, prevents that again external foreign material or dust from entering in bearing simultaneously, can effectively improve the working life of bearing.Along with development, user is more and more higher to the quality requirement of bearing sealed ring, not only requires bearing to have highi degree of accuracy, long lifetime, but also requires bearing to have low vibration, low noise, temperature rise, leak fat, dustproof property indices is good; Particularly in recent years, along with the development and application of super high speed electric instrument (more than 30000r/min), in some matched host machine, bearing produce to hold noise larger, and as supporting bearing sealed ring, its anti-acoustic capability is poor, cannot eliminate the noise that bearing produces, and has produced noise pollution.
Model utility content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of noise reduction bearing with good anti-acoustic capability.
For achieving the above object, the utility model provides following technological scheme: a kind of noise reduction bearing, comprise bearing inner ring, outer race, be fixed on the seal ring on outer race, described seal ring comprises rubber seal ring, the ring packing skeleton being fixedly connected with rubber seal ring, described ring packing skeleton be embedded in rubber seal ring one side and have one side be exposed to outside, on the face of the relative ring packing skeleton of described rubber seal ring, be arranged with multiple hemispherical protuberances, between the hemisphere inconsistent and adjacent with ring packing skeleton of described hemispherical protuberances summit, form noise reduction cavity, on the sphere of described hemispherical protuberances, scribble antidrumming compound, described ring packing skeleton is provided with conducting noise reduction cavity and outside through hole.
The utility model is further set to: full little concave point in described hemispherical protuberances.
The utility model is further set to: described rubber seal ring outer ring is fixing seal portion, and inner ring is contact sealed department, and described fixing seal portion is fixedly connected with outer race, and described contact sealed department contacts sealing with bearing inner ring.
The utility model is further set to: described contact sealed department comprises sealing lip, and described sealing lip is at least provided with two, and described bearing inner ring outer wall is provided with the seal groove corresponding with sealing lip, described sealing lip and seal groove diapire line contact sealing.
The utility model is further set to: relative sealing framework one side of described sealing lip is provided with arc shaped surface, scribbles antidrumming compound on arc shaped surface.
The utility model is further set to: in described seal groove, be filled with noise-reducing lubricating grease.
The utility model is further set to: the one side that described ring packing skeleton is faced hemispherical protuberances scribbles antidrumming compound.
In described noise reduction cavity, be filled with ceramic wool.
The utility model is further set to: described outer race both sides are equipped with described seal ring.
By adopting technique scheme, the noise that this noise reduction bearing can produce bearing is passed in noise reduction cavity by the through hole on sealing framework, make noise can be in this noise reduction cavity propagation repeatedly, and be coated on the antidrumming compound that hemisphere turns convex surfaces and absorb, play the effect of noise reduction.
Brief description of the drawings
Fig. 1 is the utility model bearing embodiment's cross-sectional view;
Fig. 2 is the cross sectional view of rubber seal ring;
Fig. 3 is the partial enlarged drawing of A in Fig. 2;
Fig. 4 is the structural representation of rubber seal ring.
Reference character: 1, bearing inner ring; 11, seal groove; 2, outer race; 3, seal ring; 31, rubber seal ring; 311, hemispherical protuberances; 312, fixing seal portion; 313, contact sealed department; 3131, sealing lip; 31311, arc shaped surface; 32, sealing framework; 321, through hole; 4, noise reduction cavity.
Embodiment
Referring to figs. 1 through Fig. 4, the utility model bearing embodiment is described further.
A kind of noise reduction bearing, comprise bearing inner ring 1, outer race 2, be fixed on the seal ring 3 on outer race 2, described seal ring 3 comprises rubber seal ring 31, the ring packing skeleton 32 being fixedly connected with rubber seal ring 31, described ring packing skeleton 32 be embedded in rubber seal ring 31 1 sides and have one side be exposed to outside, on the face of described rubber seal ring 31 relative ring packing skeletons 32, be arranged with multiple hemispherical protuberances 311, between the hemisphere inconsistent and adjacent with ring packing skeleton 32 of described hemispherical protuberances 311 summits, form noise reduction cavity, on the sphere of described hemispherical protuberances 311, scribble antidrumming compound, described ring packing skeleton 32 is provided with conducting noise reduction cavity and outside through hole 321.Hemispherical protuberances 311 is wholely set with rubber seal ring 31, rubber seal ring 31 and hemispherical protuberances 311 are made by reducing noise rubber, the noise that this noise reduction bearing can produce bearing is passed in noise reduction cavity by the through hole 321 on sealing framework 32, make noise can be in this noise reduction cavity propagation repeatedly, and the hemispherical protuberances 311 of being made by reducing noise rubber and be coated on the antidrumming compound that hemisphere turns convex surfaces and repeatedly absorb, and hemispheric projection can farthest increase surface area, increase the collision area of convex surfaces and noise, give full play to its sound-absorbing, the function of noise reduction, play good noise reduction.
Full little concave point in described hemispherical protuberances 311.In the time that noise imports noise reduction cavity into, noise can repeatedly be relayed in little concave point, and hemispherical protuberances 311 and antidrumming compound that the reducing noise rubber in it is made can repeatedly absorb noise, have greatly improved the performance of noise reduction.
Described rubber seal ring 31 outer rings are fixing seal portion 312, and inner ring is contact sealed department 313, and described fixing seal portion 312 is fixedly connected with outer race 2, and described contact sealed department 313 contacts sealing with bearing inner ring 11.Fixing seal portion 312 is for being fixedly connected on bearing outer ring, contact sealed department 313 contacts sealing with bearing inner ring 1, generally be applicable on the fixed bearing of bearing inner ring 1, this rubber seal ring 31 just can rotate, guarantee sealability that can be more stable.Outer race 2 is provided with the groove with fixing seal portion 312 interference fit, and fixing seal portion 312 is embedded in groove, can also reinforce sealing with glue.
Described contact sealed department 313 comprises sealing lip 3131, and described sealing lip 3131 is at least provided with two.Multi-lip seal can improve sealability.Described relative sealing framework 32 1 sides of sealing lip 3131 are provided with arc shaped surface 31311, when bearing is arranged on bearing, sealing framework 32 can be towards bearing centre (towards rolling element), so 3131 relative sealing framework 32 1 sides of sealing lip (facing the face of bearing centre) are arc shaped surface 31311, on arc shaped surface 31311, scribble antidrumming compound, noise transmission just can be absorbed by the antidrumming compound on arc shaped surface 31311 to time on these sealing lips 3131 like this, between every two sealing lips 3131, can also form cavity, increase greatly the effect of sound-absorbing, therefore multiple sealing lips 3131 can not only increase sealing effect, can also improve the ability of this bearing absorbing sound and lowering noise.
In described seal groove 11, be filled with noise-reducing lubricating grease, noise-reducing lubricating grease not only has the ability that absorbs noise, can also coordinate with two adjacent sealing lips 3131, make sealing circle 3 can form tight seal space, prevent that noise from passing to outside, allow noise be absorbed in the space of sealing, effectively raise the ability of noise reduction.
The one side that described ring packing skeleton 32 is faced hemispherical protuberances 311 scribbles antidrumming compound.The one side that ring packing skeleton 32 is faced hemispherical protuberances 311 is also one of composition wall of noise reduction cavity, and when noise enters noise reduction cavity, the antidrumming compound on its face also can play good sound-absorbing effect, has increased the absorbing sound and lowering noise function of noise reduction cavity.
In described noise reduction cavity, be filled with ceramic wool.The performances such as ceramic wool tool light weight, fire prevention, sound-absorbing, its Sound-absorptive Mechanism is that this goods have cellular structure, in the time that sound wave passes through, because the effect of flow resistance produces friction, a part that makes acoustic energy is absorbed by fiber, the moon has hindered the transmission of sound wave, in ceramic wool noise reduction cavity, can repeatedly absorb noise, has greatly improved the anti-acoustic capability of this bearing.
Described outer race 2 both sides are equipped with described seal ring 3.In some equipment, bearing can't be resisted against on the end face of equipment, therefore its bi-side are all loaded onto described seal ring 3(outer race 2 both sides corresponding groove and seal groove 11 are all set, form and be sealed and matched with described seal ring 3), the both sides, front and back that so just can ensure bearing are all sealed, and the seal ring 3 of both sides just can play noise reduction simultaneously.
Claims (9)
1. a noise reduction bearing, comprise bearing inner ring, outer race, be fixed on the seal ring on outer race, described seal ring comprises rubber seal ring, the ring packing skeleton being fixedly connected with rubber seal ring, it is characterized in that: described ring packing skeleton be embedded in rubber seal ring one side and have one side be exposed to outside, on the face of the relative ring packing skeleton of described rubber seal ring, be arranged with multiple hemispherical protuberances, between the hemisphere inconsistent and adjacent with ring packing skeleton of described hemispherical protuberances summit, form noise reduction cavity, on the sphere of described hemispherical protuberances, scribble antidrumming compound, described ring packing skeleton is provided with conducting noise reduction cavity and outside through hole.
2. noise reduction bearing according to claim 1, is characterized in that: full little concave point in described hemispherical protuberances.
3. noise reduction bearing according to claim 1 and 2, it is characterized in that: described rubber seal ring outer ring is fixing seal portion, inner ring is contact sealed department, and described fixing seal portion is fixedly connected with outer race, and described contact sealed department contacts sealing with bearing inner ring.
4. noise reduction bearing according to claim 3, it is characterized in that: described contact sealed department comprises sealing lip, described sealing lip is at least provided with two, and described bearing inner ring outer wall is provided with the seal groove corresponding with sealing lip, described sealing lip and seal groove diapire line contact sealing.
5. noise reduction bearing according to claim 4, is characterized in that: relative sealing framework one side of described sealing lip is provided with arc shaped surface, scribbles antidrumming compound on arc shaped surface.
6. noise reduction bearing according to claim 5, is characterized in that: in described seal groove, be filled with noise-reducing lubricating grease.
7. according to the noise reduction bearing described in claim 1 or 6, it is characterized in that: the one side that described ring packing skeleton is faced hemispherical protuberances scribbles antidrumming compound.
8. noise reduction bearing according to claim 7, is characterized in that: in described noise reduction cavity, be filled with ceramic wool.
9. noise reduction bearing according to claim 8, is characterized in that: described outer race both sides are equipped with described seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420045009.XU CN203685878U (en) | 2014-01-24 | 2014-01-24 | Noise-reduction bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420045009.XU CN203685878U (en) | 2014-01-24 | 2014-01-24 | Noise-reduction bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203685878U true CN203685878U (en) | 2014-07-02 |
Family
ID=51007785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420045009.XU Expired - Fee Related CN203685878U (en) | 2014-01-24 | 2014-01-24 | Noise-reduction bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203685878U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105747924A (en) * | 2016-05-10 | 2016-07-13 | 广东美的生活电器制造有限公司 | Machine head assembly, silicone ring and food processor |
| CN107178556A (en) * | 2017-06-24 | 2017-09-19 | 宁波万丰轴承有限公司 | A kind of sealed deep groove ball bearing |
-
2014
- 2014-01-24 CN CN201420045009.XU patent/CN203685878U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105747924A (en) * | 2016-05-10 | 2016-07-13 | 广东美的生活电器制造有限公司 | Machine head assembly, silicone ring and food processor |
| CN105747924B (en) * | 2016-05-10 | 2018-06-05 | 广东美的生活电器制造有限公司 | Nose assembly, silica gel ring and cooking machine |
| CN107178556A (en) * | 2017-06-24 | 2017-09-19 | 宁波万丰轴承有限公司 | A kind of sealed deep groove ball bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20180124 |