CN201597406U - Miniature vehicle dynamic vibration absorber - Google Patents
Miniature vehicle dynamic vibration absorber Download PDFInfo
- Publication number
- CN201597406U CN201597406U CN2010201214448U CN201020121444U CN201597406U CN 201597406 U CN201597406 U CN 201597406U CN 2010201214448 U CN2010201214448 U CN 2010201214448U CN 201020121444 U CN201020121444 U CN 201020121444U CN 201597406 U CN201597406 U CN 201597406U
- Authority
- CN
- China
- Prior art keywords
- minicar
- mass
- shock absorber
- miniature vehicle
- dynamic shock
- 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
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- Vibration Prevention Devices (AREA)
Abstract
The utility model discloses a miniature vehicle dynamic vibration absorber, which comprises a mounting support. The mounting support is fixed onto a miniature vehicle main reducer casing via bolts and connected with an elastic body, the end of the elastic body is provided with a mass block, a cavity filled with powder particles is arranged inside the mass block, filling rate of the powder particles in the cavity ranges from 75% to 85%, and a limit cover mounted on the mounting support is arranged above the mass block. The dynamic vibration absorber is mounted in the miniature vehicle main reducer casing and can attenuate vibration which is transferred to a rear axle when a miniature vehicle is accelerate to start, thereby reducing low-speed bellow in the vehicle, obviously improving driving and riding comfort, and achieving significant vibration absorbing and noise reducing effects. Simultaneously, the dynamic vibration absorber is convenient in detachment, and can not affect maintenance and use of a miniature vehicle main reducer or affect pass height of the integral vehicle.
Description
Technical field
The utility model relates to a kind of shock attenuation unit, specifically, relates to a kind of back axle dynamic shock absorber that is used for min-truck or mini van.
Background technology
At present, at automotive market with keen competition, more and more higher in comprehensive " cost performance " level aspect the traditional performance with the class vehicle.Therefore, the ride comfort that improves vehicle becomes new focus of the competition, and wherein noise, vibration and traveling comfort (the y english abbreviation is NVH) occupy main status.NVH is not only the key factor that influences vehicle riding comfort, and is one of important indicator of estimating its quality quality.As seen, relate to the research focus that the vibration of vehicle noise problem has become automobile technical field.
There is the low speed roar in certain minicar under the operating mode of city, cause the driver and conductor very uncomfortable.Through the noise source identification, discovery is to be caused to the second order vibration by back axle Z.Through investigation, all there is this problem in many moneys minicar, and the simple sound absorption of passing through vehicle body, sound insulation are handled, and are difficult to tackle the problem at its root.Because original dynamic shock absorber damping is little, cause the vibration damping frequency range narrower; In addition, because dynamic shock absorber applying working condition complexity, the available dynamic shock absorber is difficult to pass through durability test cycle.So,, press for a kind of with low cost, outstanding effect vibration and noise reducing device for minicar.
The utility model content
The technical problems to be solved in the utility model provides a kind of can the decay and is delivered to the vibration of back axle during the minicar starting-up to speed, thereby finally reduces the minicar dynamic shock absorber of the low speed roar in the car.
In order to solve the problems of the technologies described above, the utility model is achieved by following technical scheme:
A kind of minicar dynamic shock absorber, comprise by the erection support of bolt in the minicar bevel housing, described erection support is connected with the elastic body that the end is provided with mass, the inner cavity that is filled with powder granule that is provided with of described mass, described powder granule is 75%～85% at the volume filling rate of described cavity; Described mass top is provided with the position-limiting cover that is installed on the described erection support.
Described powder granule is wherein a kind of of lead powder, tungsten powder or iron powder.
Described mass is wherein a kind of of cylinder or square body.
The wall thickness of described mass is more than or equal to 2mm.
Described elastic body is made by elastomeric material, and is connected by sulfuration process with described erection support with described mass.
Described elastomeric damping coefficient is more than or equal to 0.1.
The beneficial effects of the utility model are:
Adopt dynamic shock absorber of the present utility model to be installed in the minicar bevel housing, be delivered to the vibration of back axle in the time of can decaying the minicar starting-up to speed, thereby finally reduce the low speed roar in the car.Actual measurement shows, adopts this dynamic shock absorber, and bevel housing back axle Z is to 2 rank vibration reduction 10dB, and correspondingly the order noise has reduced 5dB (A) in the car, and ride comfort is significantly improved, and has obtained tangible effect of vibration and noise reduction.Simultaneously, this installs convenient disassembly, neither influences the maintenance and the use of minicar main reduction gear, does not also influence the height that passes through of car load.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Among the figure: powder granule---1, mass---2, position-limiting cover---3, elastic body---4, erection support---5.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail:
The utility model discloses a kind of back axle dynamic shock absorber that is used for min-truck or mini van, comprise an erection support 5, be used for shock absorber is installed on the minicar bevel housing, and be fixed in the main damper housing with bolt.Described erection support 5 is connected with elastic body 4; Described elastic body 4 is connected with mass 2.
Described mass 2 is a hollow, and promptly mass 2 inside are provided with cavity; Described cavity inside is filled with powder granule 1, and described powder granule 1 can be selected lead powder, tungsten powder or iron powder etc.Described powder granule 1 is 75%～85% at the volume filling rate of described cavity.
Described mass 2 is cylinder or square body, and its wall thickness is more than or equal to 2mm.
The described elastic body 4 general elastomeric materials that adopt are made, and link together by sulfuration process with mass 2 and erection support 5.
Described elastic body 4 is used to support mass 2, and constitutes elastic oscillating system with mass 2.Mass 2 constitutes power vibration damping mechanism jointly with elastic body 4, is used for the attenuating structure vibration.The quality of mass 2 is according to being determined that by the quality of vibration damping object the natural frequency of dynamic shock absorber is consistent with the frequency of structural vibration (vibration that need decay).
Mass 2 has certain damping, and its damping coefficient is greater than 0.1.It also utilizes damping to consume vibrational energy except the power vibration damping effect, makes effectiveness in vibration suppression better, but also the vibration damping frequency band is widened to have wider Applicable scope.
Described mass 2 tops are provided with position-limiting cover 3; Described position-limiting cover 3 is mounted on erection support 5, is used to limit the motion of mass 2.For fear of the damage of dynamic shock absorber, position-limiting cover 3 can be avoided the excessive motion of dynamic shock absorber mass.
Described elastic body 4 is made by elastomeric material, and is connected by sulfuration process with described mass 2 and described erection support 5.
Although in conjunction with the accompanying drawings preferred embodiment of the present utility model is described above; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away under the scope situation that the utility model aim and claim protect, can also make the concrete conversion of a lot of forms, these all belong within the protection domain of the present utility model.
Claims (6)
1. minicar dynamic shock absorber, comprise by the erection support of bolt in the minicar bevel housing, described erection support is connected with the elastic body that the end is provided with mass, it is characterized in that, the inner cavity that is filled with powder granule that is provided with of described mass, described powder granule is 75%～85% at the volume filling rate of described cavity; Described mass top is provided with the position-limiting cover that is installed on the described erection support.
2. a kind of minicar dynamic shock absorber according to claim 1 is characterized in that, described powder granule is wherein a kind of of lead powder, tungsten powder or iron powder.
3. a kind of minicar dynamic shock absorber according to claim 1 is characterized in that, described mass is wherein a kind of of cylinder or square body.
4. a kind of minicar dynamic shock absorber according to claim 1 is characterized in that the wall thickness of described mass is more than or equal to 2mm.
5. a kind of minicar dynamic shock absorber according to claim 1 is characterized in that described elastic body is made by elastomeric material, and is connected by sulfuration process with described erection support with described mass.
6. a kind of minicar dynamic shock absorber according to claim 1 is characterized in that described elastomeric damping coefficient is more than or equal to 0.1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201214448U CN201597406U (en) | 2010-02-26 | 2010-02-26 | Miniature vehicle dynamic vibration absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201214448U CN201597406U (en) | 2010-02-26 | 2010-02-26 | Miniature vehicle dynamic vibration absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201597406U true CN201597406U (en) | 2010-10-06 |
Family
ID=42808455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201214448U Expired - Fee Related CN201597406U (en) | 2010-02-26 | 2010-02-26 | Miniature vehicle dynamic vibration absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201597406U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015003632A1 (en) * | 2013-07-10 | 2015-01-15 | 青岛科而泰环境控制技术有限公司 | Tunable mass damper with frame |
| CN116085413A (en) * | 2022-11-28 | 2023-05-09 | 中国舰船研究设计中心 | Particle vibration damper, method for manufacturing same, and vibration damper system |
-
2010
- 2010-02-26 CN CN2010201214448U patent/CN201597406U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015003632A1 (en) * | 2013-07-10 | 2015-01-15 | 青岛科而泰环境控制技术有限公司 | Tunable mass damper with frame |
| CN116085413A (en) * | 2022-11-28 | 2023-05-09 | 中国舰船研究设计中心 | Particle vibration damper, method for manufacturing same, and vibration damper system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101006 Termination date: 20110226 |