CN203835960U - Low-noise bearing - Google Patents
Low-noise bearing Download PDFInfo
- Publication number
- CN203835960U CN203835960U CN201420177005.7U CN201420177005U CN203835960U CN 203835960 U CN203835960 U CN 203835960U CN 201420177005 U CN201420177005 U CN 201420177005U CN 203835960 U CN203835960 U CN 203835960U
- Authority
- CN
- China
- Prior art keywords
- annular
- noise
- insulation board
- board group
- bearing
- Prior art date
- 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
Links
Landscapes
- Rolling Contact Bearings (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Sealing Devices (AREA)
Abstract
The utility model discloses a low-noise bearing. The key point of the technical scheme is that the face of a rubber seal ring relative to an annular sealing framework is provided with an annular groove, a noise insulation plate group matched with the annular groove is arranged in the annular groove, a cross section of the noise insulation plate group is wave-shaped, wave peaks of the noise insulation plate group are in abutting connection with the annular sealing framework to form a plurality of annular noise eliminating cavities, the noise insulation plate group consists of a plurality of annular aluminum plates, a plurality of annular fiber plates and an adhesive, wherein the annular aluminum plates and the fiber plates are spaced and connected through the adhesive, cross sections of the annular aluminum plates and the fiber plates are wave-shaped, the annular sealing framework is provided with through holes communicated with the noise insulation cavities, and a plurality of filiform fibers are fixedly connected onto the inner wall of the through holes. The low-noise bearing has the advantage of being low in noise.
Description
Technical field
The utility model relates to a kind of Bearing fittings, and more particularly, it relates to a kind of low noise 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 dustproof cover, 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 low noise bearing, and this low noise bearing has advantages of low noise.
For achieving the above object, the utility model provides following technological scheme: a kind of low noise bearing, comprise bearing inner race, bearing outer ring and be fixed on the dust cover on bearing outer ring, described dust cover comprises rubber seal ring, the ring packing skeleton being fixedly connected with rubber seal ring, described ring packing skeleton be embedded at rubber seal ring one side and have one side be exposed to outside, the face of the relative ring packing skeleton of described rubber seal is provided with annular groove, in described annular groove, be provided with the insulation board group suitable with annular groove size, the cross section undulate of described insulation board group arranges, the crest of described insulation board group is all conflicted and is connected and forms several annular noise reduction cavitys with ring packing skeleton, described insulation board group is by some annular aluminium sheets, some circular fiber plates and tackiness agent composition, described annular aluminium sheet and fiber-wall-board partition setting, between described annular aluminium sheet and wad, be connected by tackiness agent, the cross section undulate of described annular aluminium sheet and circular fiber plate arranges, described ring packing skeleton is provided with the through hole communicating with noise reduction cavity, on described through-hole wall, be fixedly connected with some filamentary fibers.
By adopting technique scheme, this low noise bearing can be passed to the noise producing in bearing working process in the noise reduction cavity being surrounded by insulation board group and sealing framework by through hole, noise first when through hole because the viscous resistance of air makes the filamentary fibers friction on air and hole wall, this just can first make a part of noise change into heat to be absorbed, play to a certain extent noise reduction, noise can be absorbed gradually by reciprocal shock in noise reduction cavity, insulation board group comprises annular aluminium sheet and circular fiber plate, the making with two kinds of different materials by insulation board group, between annular aluminium sheet and wad, interval arranges, can make different wave length noise successively to be absorbed, because different materials can absorb the noise of different wave length, therefore such design just can improve better absorption noise, play good noise reduction.
The utility model is further set to: between described every adjacent annular aluminium sheet, be provided with described circular fiber plate, described annular aluminium sheet is connected by tackiness agent with circular fiber plate.
By adopting technique scheme, between adjacent annular aluminium sheet, circular fiber plate is set, such design can make a part of noise by can being successively absorbed in the process of insulation board group, the every noise that will absorb a kind of wavelength through one deck circular fiber plate of noise, then at the noise that can absorb another wavelength through one deck annular aluminium sheet, noise is just better absorbed like this, to play the effect of noise reduction.
The utility model is further set to: on described each circular fiber plate, be equipped with some the first sound-absorption hole, described each annular aluminium sheet is provided with some the second sound-absorption hole, and described the first sound-absorption hole and the second sound-absorption hole are interspersed.
By adopting technique scheme, the first sound-absorption hole and the second sound-absorption hole are interspersed and can make sound-absorbing effect better.
The utility model is further set to: described through hole is round table-like setting, and the little opening end of described through hole arranges near insulation board group, and described large opening end arranges away from insulation board group.
By adopting technique scheme, such design just can make noise when by through hole, can increase friction and then the acoustic energy of noise is changed into heat energy, better to play noise reduction.
The utility model is further set to: described filamentary fibers arranges near insulation board group.
By adopting technique scheme, filamentary fibers arranges near insulation board group, and such design can make in the time that dust cover rotates, and avoids filamentary fibers to enter bearing inside, affects the usability of bearing.
The utility model is further set to: on the face of the described relative insulation board group of ring packing skeleton, be coated with antidrumming compound completely.
By adopting technique scheme, on ring packing skeleton, arrange when antidrumming compound can make noise repeatedly propagate in noise reduction cavity and have part noise to be absorbed to play the effect of noise reduction by antidrumming compound.
Brief description of the drawings
Fig. 1 is the utility model low noise bearing embodiment's structural representation;
Fig. 2 is the structural representation of the utility model low noise bearing embodiment dust cover;
Fig. 3 is A portion enlarged view in Fig. 2.
Reference character: 1, bearing inner race; 2, bearing outer ring; 3, dust cover; 31, rubber seal ring; 32, ring packing skeleton; 321, through hole; 4, insulation board group; 41, annular aluminium sheet; 411, the first sound-absorption hole; 42, circular fiber plate; 421, the second sound-absorption hole; 5, noise reduction cavity; 6, filamentary fibers.
Embodiment
Referring to figs. 1 through Fig. 3, the utility model low noise bearing embodiment is described further.
A kind of low noise bearing, comprise bearing inner race 1, bearing outer ring 2 and be fixed on the dust cover 3 on bearing outer ring 2, described dust cover 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 at rubber seal ring 31 1 sides and have one side be exposed to outside, the face of the relative ring packing skeleton 32 of described rubber seal is provided with annular groove, in described annular groove, be provided with the insulation board group 4 suitable with annular groove size, the cross section undulate of described insulation board group 4 arranges, the crest of described insulation board group 4 is all conflicted and is connected and forms several annular noise reduction cavitys 5 with ring packing skeleton 32, described insulation board group 4 is by some annular aluminium sheets 41, some circular fiber plates 42 and tackiness agent composition, described annular aluminium sheet 41 and fiber-wall-board partition setting, between described annular aluminium sheet 41 and wad, be connected by tackiness agent, the cross section undulate of described annular aluminium sheet 41 and circular fiber plate 42 arranges, described ring packing skeleton 32 is provided with the through hole 321 communicating with noise reduction cavity 5, on described through hole 321 inwalls, be fixedly connected with some filamentary fibers 6.
By adopting technique scheme, this low noise bearing can be passed to the noise producing in bearing working process in the noise reduction cavity 5 being surrounded by insulation board group 4 and sealing framework by through hole 321, first noise rubs because the viscous resistance of air makes the filamentary fibers 6 on air and hole wall when through hole 321, this just can first make a part of noise change into heat to be absorbed, play to a certain extent noise reduction, noise can be absorbed gradually at the interior reciprocal shock of noise reduction cavity 5, insulation board group 4 comprises annular aluminium sheet 41 and circular fiber plate 42, by making of insulation board group 4 two kinds of different materials of use, between annular aluminium sheet 41 and wad, interval arranges, can make different wave length noise successively to be absorbed, because different materials can absorb the noise of different wave length, therefore such design just can improve better absorption noise, play good noise reduction.
Between described every adjacent annular aluminium sheet 41, be provided with described circular fiber plate 42, described annular aluminium sheet 41 is connected by tackiness agent with circular fiber plate 42.
By adopting technique scheme, between adjacent annular aluminium sheet 41, circular fiber plate 42 is set, such design can make a part of noise by can being successively absorbed in the process of insulation board group 4, the every noise that will absorb a kind of wavelength through one deck circular fiber plate 42 of noise, then at the noise that can absorb another wavelength through one deck annular aluminium sheet 41, noise is just better absorbed like this, to play the effect of noise reduction.
On described each circular fiber plate 42, be equipped with some the first sound-absorption hole 411, described each annular aluminium sheet 41 is provided with some the second sound-absorption hole 421, and described the first sound-absorption hole 411 and the second sound-absorption hole 421 are interspersed.
By adopting technique scheme, the first sound-absorption hole 411 and the second sound-absorption hole 421 are interspersed and can make sound-absorbing effect better.
Described through hole 321 is round table-like setting, and the little opening end of described through hole 321 arranges near insulation board group 4, and described large opening end arranges away from insulation board group 4.
By adopting technique scheme, such design just can make noise when by through hole 321, can increase friction and then the acoustic energy of noise is changed into heat energy, better to play noise reduction.
Described filamentary fibers 6 arranges near insulation board group 4.
By adopting technique scheme, filamentary fibers 6 arranges near insulation board group 4, and such design can make in the time that dust cover 3 rotates, and avoids filamentary fibers 6 to enter bearing inside, affects the usability of bearing.
On the face of described ring packing skeleton 32 relative insulation board groups 4, be coated with antidrumming compound completely.
By adopting technique scheme, on ring packing skeleton 32, arrange when antidrumming compound can make noise repeatedly propagate in noise reduction cavity 5 and have part noise to be absorbed to play the effect of noise reduction by antidrumming compound.
Claims (6)
1. a low noise bearing, comprise bearing inner race, bearing outer ring and be fixed on the dust cover on bearing outer ring, described dust cover comprises rubber seal ring, the ring packing skeleton being fixedly connected with rubber seal ring, described ring packing skeleton be embedded at rubber seal ring one side and have one side be exposed to outside, it is characterized in that: the face of the relative ring packing skeleton of described rubber seal is provided with annular groove, in described annular groove, be provided with the insulation board group suitable with annular groove size, the cross section undulate of described insulation board group arranges, the crest of described insulation board group is all conflicted and is connected and forms several annular noise reduction cavitys with ring packing skeleton, described insulation board group is by some annular aluminium sheets, some circular fiber plates and tackiness agent composition, described annular aluminium sheet and fiber-wall-board partition setting, between described annular aluminium sheet and wad, be connected by tackiness agent, the cross section undulate of described annular aluminium sheet and circular fiber plate arranges, described ring packing skeleton is provided with the through hole communicating with noise reduction cavity, on described through-hole wall, be fixedly connected with some filamentary fibers.
2. low noise bearing according to claim 1, is characterized in that: between described every adjacent annular aluminium sheet, be provided with described circular fiber plate, described annular aluminium sheet is connected by tackiness agent with circular fiber plate.
3. low noise bearing according to claim 2, it is characterized in that: on described each circular fiber plate, be equipped with some the first sound-absorption hole, described each annular aluminium sheet is provided with some the second sound-absorption hole, and described the first sound-absorption hole and the second sound-absorption hole are interspersed.
4. low noise bearing according to claim 3, is characterized in that: described through hole is round table-like setting, and the little opening end of described through hole arranges near insulation board group, and described large opening end arranges away from insulation board group.
5. low noise bearing according to claim 4, is characterized in that: described filamentary fibers arranges near insulation board group.
6. low noise bearing according to claim 5, is characterized in that: on the face of the described relative insulation board group of ring packing skeleton, be coated with antidrumming compound completely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420177005.7U CN203835960U (en) | 2014-04-12 | 2014-04-12 | Low-noise bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420177005.7U CN203835960U (en) | 2014-04-12 | 2014-04-12 | Low-noise bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203835960U true CN203835960U (en) | 2014-09-17 |
Family
ID=51513807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420177005.7U Expired - Fee Related CN203835960U (en) | 2014-04-12 | 2014-04-12 | Low-noise bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203835960U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109780064A (en) * | 2019-03-20 | 2019-05-21 | 江苏持华轴承有限公司 | A kind of low noise needle bearing with centering bradyseism |
-
2014
- 2014-04-12 CN CN201420177005.7U patent/CN203835960U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109780064A (en) * | 2019-03-20 | 2019-05-21 | 江苏持华轴承有限公司 | A kind of low noise needle bearing with centering bradyseism |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109185381A (en) | A kind of combined elastic ring squeeze film damper | |
| CN204740066U (en) | Mechanical transmission loading noise level test rack | |
| CN203835960U (en) | Low-noise bearing | |
| CN203770430U (en) | Bearing dustproof cover | |
| WO2014085805A3 (en) | Linear actuator for motion simulator | |
| CN103644256B (en) | A kind of grease lubrication antenna active unwinding device | |
| CN203685849U (en) | Bearing | |
| CN203685877U (en) | Bearing seal ring | |
| CN203685878U (en) | Noise-reduction bearing | |
| CN205592374U (en) | A damping coupling mechanism for changing speed operating mechanism | |
| CN203859612U (en) | Waterproof motor | |
| CN203685871U (en) | Bearing seal ring | |
| CN203770426U (en) | Noise reduction bearing | |
| CN202258318U (en) | Sound insulation shield | |
| CN205226059U (en) | Low noise bearing | |
| CN203685875U (en) | Bearing | |
| CN209709829U (en) | A kind of motor bearings noise-reducing structure | |
| CN203906570U (en) | Bearing used on scooter | |
| CN103401344B (en) | A kind of submersible motor of quick detachable angular contact ball bearing | |
| CN204267678U (en) | Flangeseal fixedly secures gear box device | |
| CN203297380U (en) | Mute type bearing seat | |
| CN210469002U (en) | Waterproof and noise-reducing motor | |
| CN201779002U (en) | Sealing device of water pump bearing | |
| CN103427535A (en) | Vibration reduction structure applicable to bearing room | |
| CN203009719U (en) | Worm and gear reducer |
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 |
Granted publication date: 20140917 Termination date: 20170412 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |