CN203844553U - Automobile noise reduction tire cover - Google Patents
Automobile noise reduction tire cover Download PDFInfo
- Publication number
- CN203844553U CN203844553U CN201420277738.8U CN201420277738U CN203844553U CN 203844553 U CN203844553 U CN 203844553U CN 201420277738 U CN201420277738 U CN 201420277738U CN 203844553 U CN203844553 U CN 203844553U
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- CN
- China
- Prior art keywords
- noise reduction
- reduction layer
- tire cover
- tire
- noise
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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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Abstract
The utility model discloses an automobile noise reduction tire cover. The automobile noise reduction tire cover comprises a fender and a splash guard mounted on the fender, and further comprises a noise reduction layer arranged between the splash guard and the fender; the noise reduction layer is located at the inner side of the fender; the outline of the noise reduction layer is a waveform surface; the waveform is formed by wave peaks and wave troughs which are arrayed at intervals along the arc surface of the inner side of the fender in a space; an outline wall of the noise reduction layer is subjected to surface rough treatment; a cavity is formed between the outline wall of the noise reduction layer and the splash guard; a plurality of noise reduction holes are distributed in slope surfaces between the wave peaks and the wave troughs of the noise reduction layer; a noise reduction coating is arranged in the outline wall of the noise reduction layer. In a sound wave comparing test of the automobile noise reduction tire cover, the average reduction effect of noises, which is measured in a compartment, is 6.5dB; the noises of a tire are reduced by the automobile noise reduction tire cover from a transmission way of the tire noises; particularly, the noise pollution in the compartment can be obviously reduced in a noise reduction direction and the use feeling is improved.
Description
Technical field
The utility model relates to a kind of automobile silencing tire cover.
Background technology
One of noise main source of automobile comprises squeal of tire, the noise of tire accounts for the ratio that tool is very large in self-propelled vehicle overall noise, the source that the current means that reduce tire noise concentrate on noise source is conventionally on the design of tire, as the design of tire lines, tire installs quieter material layer additional, and for almost there is no independent de-noising design on the route of transmission of tire noise.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of automobile silencing tire cover, this automobile silencing tire cover goes out to send to alleviate the noise of tire from the route of transmission of tire noise, particularly in noise elimination direction, can obviously reduce the noise pollution of interior, promote and use impression.
The technical scheme in the invention for solving the above technical problem is:
Comprise uppermost leaf plate and be installed on the mud guard on uppermost leaf plate, also comprise and be arranged at noise reduction layer between mud guard and uppermost leaf plate, noise reduction layer is in uppermost leaf plate inner side, noise reduction layer contoured wall is wavy surface, the noise reduction layer contoured wall is here worth noise reduction layer near the sidewall of mud guard one side, waveform is in space, along the cambered surface of uppermost leaf plate inner side, to present crest and the trough of interphase distribution, described noise reduction layer contoured wall is that metal is made, be generally aluminium or carbon steel, but be not limited to aluminium or carbon steel, described noise reduction layer contoured wall rough surface is processed, roughness of surface is greater than 80um, the peak-to-peak spacing of described ripple is in the scope of 2cm-18cm, the diff-H of described crest and trough is in the scope of 15mm-50mm, the height of described trough is in the scope of 10mm-20mm, between described noise reduction layer contoured wall and mud guard, form cavity,
Some bloops are set and are distributed in domatic between the crest of described noise reduction layer and trough, noise reduction layer contoured wall be inner, and what arrange is sound-absorbing coating.
The know-why of above-mentioned automobile silencing tire cover is, uppermost leaf plate and mud guard are the prior art parts of automobile tire cover, between it, be provided with noise reduction layer now, sound wave can be constantly when the noise reduction layer of the unrestrained shape by coarse ripple due to the diffuser reflection dissipation acoustic wave energy between Wave crest and wave trough and import acoustic wave energy into aperture, in noise reduction layer, quieter material further dissipates again, the processing of noise reduction layer contoured wall rough surface and roughness of surface are greater than 80um and could form the effective diffuser reflection of noise reduction layer to acoustic wave energy, the Wave crest and wave trough spacing dimension of noise reduction layer is chosen as the optimum dimension that utilizes sound wave diffuse scattering to dissipate, spacing is greater than 18cm or trough and is shallower than 15mm the too short sound-absorbing effect of reflection paths is not good, if contrary spacing be less than 2cm or trough be deeper than 50mm bring on processing density and material expend excessive, the height of trough is arranged on 10mm, 20mm or be in order to guarantee the Rational Thickness of noise reduction layer between the two, be greater than 20mm and because edge effect waste coating is less than 10mm, cannot obtain suitable erasure effect.This automobile silencing tire cover goes out to send to alleviate the noise of tire from the route of transmission of tire noise, particularly in noise elimination direction, can obviously reduce the noise pollution of interior, promotes and uses impression.
On described bloop, be provided with screen membrane.In order to avoid as far as possible coating surface contaminated.
Described noise reduction layer contoured wall thickness is between 1mm-5mm.If the thickness of noise reduction layer outline is less than difficult processing of 1mm in actual tests, be greater than the sorption of the too much inner quieter material of reduction of 5mm, preferred, desirable 2mm.
The side of described uppermost leaf plate is provided with side shield, is provided with some noise reduction projections on side shield, and the spacing between described noise reduction projection is between 5cm-20cm, and height is between 15mm-30mm.Described noise reduction projection further strengthening erasure effect is set, the noise of side surface direction further can be weakened to 1dB-1.5dB.
The sound-absorbing coating material of described noise reduction layer adopts Spray-K18 vegetable fibre sound absorbing layer.This material coating is firm and soundproof effect good.
To sum up, the beneficial effects of the utility model are:
In the sound wave contrast test with automobile silencing tire cover, the noise decreased average effect recording at interior is 6.5dB, the noise decreased average effect externally recording is 3.3dB, this automobile silencing tire cover goes out to send to alleviate the noise of tire from the route of transmission of tire noise, particularly in noise elimination direction, can obviously reduce the noise pollution of interior, promote and use impression.
Accompanying drawing explanation
Fig. 1 is the part sectional view of automobile silencing tire cover described in the utility model;
Fig. 2 is the noise reduction layer birds-eye view after automobile silencing tire cover upset described in the utility model.
Mark and corresponding parts title in accompanying drawing:
1-side shield 11-noise reduction projection 2-mud guard 3-uppermost leaf plate 4-noise reduction layer 41-crest 42-trough 43-bloop 5-cavity 6-tire.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is done to detailed description further, but embodiment of the present utility model is not limited to this.
Be illustrated in figure 1 the section drawing of automobile silencing tire cover described in the utility model, comprise uppermost leaf plate 3 and be installed on the mud guard 5 on uppermost leaf plate, also comprise and be arranged at noise reduction layer 4 between mud guard and uppermost leaf plate, noise reduction layer is in uppermost leaf plate inner side, noise reduction layer contoured wall is wavy surface, the noise reduction layer contoured wall is here worth noise reduction layer near the sidewall of mud guard one side, waveform is in space, along the cambered surface of uppermost leaf plate inner side, to present the crest 41 and trough 42 of interphase distribution, described noise reduction layer contoured wall is that metal is made, be generally aluminium or carbon steel, described noise reduction layer contoured wall rough surface is processed, roughness of surface is greater than 80um, spacing between described crest 41 is in the scope of 2cm-18cm, the diff-H of described crest and trough is in the scope of 15mm-50mm, the height of described trough is in the scope of 10mm-20mm, between described noise reduction layer contoured wall and mud guard, form cavity 5,
Some bloops 43 are set and are distributed in domatic between the crest of described noise reduction layer and trough, noise reduction layer contoured wall be inner, and what arrange is sound-absorbing coating.
The know-why of above-mentioned automobile silencing tire cover is, uppermost leaf plate and mud guard are the prior art parts of automobile tire cover, between it, be provided with noise reduction layer now, sound wave can be constantly when the noise reduction layer of the unrestrained shape by coarse ripple due to the diffuser reflection dissipation acoustic wave energy between Wave crest and wave trough and import acoustic wave energy into aperture, in noise reduction layer, quieter material further dissipates again, the processing of noise reduction layer contoured wall rough surface and roughness of surface are greater than 80um and could form the effective diffuser reflection of noise reduction layer to acoustic wave energy, the Wave crest and wave trough spacing dimension of noise reduction layer is chosen as the optimum dimension that utilizes sound wave diffuse scattering to dissipate, spacing is greater than 18cm or trough and is shallower than 15mm the too short sound-absorbing effect of reflection paths is not good, if contrary spacing be less than 2cm or trough be deeper than 50mm bring on processing density and material expend excessive, the height of trough is arranged on 10mm, 20mm or be in order to guarantee the Rational Thickness of noise reduction layer between the two, be greater than 20mm and because edge effect waste coating is less than 10mm, cannot obtain suitable erasure effect.This automobile silencing tire cover goes out to send to alleviate the noise of tire from the route of transmission of tire noise, particularly in noise elimination direction, can obviously reduce the noise pollution of interior, promotes and uses impression.
On described bloop, be provided with screen membrane.In order to avoid as far as possible coating surface contaminated.
Described noise reduction layer contoured wall thickness is between 1mm-5mm.If the thickness of noise reduction layer outline is less than difficult processing of 1mm in actual tests, be greater than the sorption of the too much inner quieter material of reduction of 5mm, preferred, desirable 2mm.
The side of described uppermost leaf plate 3 is provided with side shield 1, is provided with some noise reduction projections 11 on side shield, and the spacing between described noise reduction projection is between 5cm-20cm, and height is between 15mm-30mm.Described noise reduction projection further strengthening erasure effect is set, the noise of side surface direction further can be weakened to 1dB-1.5dB.
The sound-absorbing coating material of described noise reduction layer 4 adopts Spray-K18 vegetable fibre sound absorbing layer.This material coating is firm and soundproof effect good.
To sum up, the beneficial effects of the utility model are:
In the sound wave contrast test with automobile silencing tire cover, the noise decreased average effect recording at interior is 6.5dB, the noise decreased average effect externally recording is 3.3dB, this automobile silencing tire cover goes out to send to alleviate the noise of tire from the route of transmission of tire noise, particularly in noise elimination direction, can obviously reduce the noise pollution of interior, promote chaufeur or passenger's feeling for taking.
As mentioned above, can realize preferably the utility model.
Claims (5)
1. an automobile silencing tire cover, it is characterized in that, comprise uppermost leaf plate (3) and be installed on the mud guard (5) on uppermost leaf plate, also comprise the noise reduction layer (4) being arranged between mud guard and uppermost leaf plate, noise reduction layer is in uppermost leaf plate inner side, noise reduction layer contoured wall is wavy surface, waveform is in space, along the cambered surface of uppermost leaf plate inner side, to present the crest (41) and trough (42) of interphase distribution, described noise reduction layer contoured wall is that metal is made, described noise reduction layer contoured wall rough surface is processed, roughness of surface is greater than 80um, spacing between described crest (41) is in the scope of 2cm-18cm, the diff-H of described crest and trough is in the scope of 15mm-50mm, the height of described trough is in the scope of 10mm-20mm, between described noise reduction layer contoured wall and mud guard, form cavity (5),
Some bloops (43) are set and are distributed in domatic between the crest of described noise reduction layer and trough, noise reduction layer contoured wall be inner, and what arrange is sound-absorbing coating.
2. automobile silencing tire cover according to claim 1, is further characterized in that, on described bloop, is provided with screen membrane.
3. automobile silencing tire cover according to claim 1, is further characterized in that, described noise reduction layer contoured wall thickness is between 1mm-5mm.
4. automobile silencing tire cover according to claim 1, be further characterized in that, the side of described uppermost leaf plate (3) is provided with side shield (1), is provided with some noise reduction projections (11) on side shield, spacing between described noise reduction projection is between 5cm-20cm, and height is between 15mm-30mm.
5. automobile silencing tire cover according to claim 1, is further characterized in that, the sound-absorbing coating material of described noise reduction layer (4) adopts Spray-K18 vegetable fibre sound absorbing layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420277738.8U CN203844553U (en) | 2014-05-28 | 2014-05-28 | Automobile noise reduction tire cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420277738.8U CN203844553U (en) | 2014-05-28 | 2014-05-28 | Automobile noise reduction tire cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203844553U true CN203844553U (en) | 2014-09-24 |
Family
ID=51557608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420277738.8U Expired - Fee Related CN203844553U (en) | 2014-05-28 | 2014-05-28 | Automobile noise reduction tire cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203844553U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103979023A (en) * | 2014-05-28 | 2014-08-13 | 成都陵川特种工业有限责任公司 | Silencing tire cover for carriage noise avoidance |
| CN115254602A (en) * | 2022-08-02 | 2022-11-01 | 中粮山萃花生制品(威海)有限公司 | Nut screening device and application method thereof |
| US11724656B2 (en) * | 2020-01-08 | 2023-08-15 | Hyundai Motor Company | Low-noise pocket-type wheel guard |
-
2014
- 2014-05-28 CN CN201420277738.8U patent/CN203844553U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103979023A (en) * | 2014-05-28 | 2014-08-13 | 成都陵川特种工业有限责任公司 | Silencing tire cover for carriage noise avoidance |
| US11724656B2 (en) * | 2020-01-08 | 2023-08-15 | Hyundai Motor Company | Low-noise pocket-type wheel guard |
| CN115254602A (en) * | 2022-08-02 | 2022-11-01 | 中粮山萃花生制品(威海)有限公司 | Nut screening device and application method thereof |
| CN115254602B (en) * | 2022-08-02 | 2023-10-10 | 中粮山萃花生制品(威海)有限公司 | Nut screening device and application method thereof |
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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 |
Granted publication date: 20140924 Termination date: 20150528 |
|
| EXPY | Termination of patent right or utility model |