CN202038163U - Exhaust suspension device - Google Patents
Exhaust suspension device Download PDFInfo
- Publication number
- CN202038163U CN202038163U CN2011201123890U CN201120112389U CN202038163U CN 202038163 U CN202038163 U CN 202038163U CN 2011201123890 U CN2011201123890 U CN 2011201123890U CN 201120112389 U CN201120112389 U CN 201120112389U CN 202038163 U CN202038163 U CN 202038163U
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- CN
- China
- Prior art keywords
- suspension hook
- rubber
- vibration absorber
- dynamic vibration
- exhaust
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Abstract
The utility model relates to the field of automobile parts, in particular to an exhaust suspension device, which comprises a driving suspending hook, a driven suspending hook and a rubber suspending block connected between the driving suspending hook and the driven suspending hook. The driving suspending hook is connected with an exhaust pipe, the driven suspending hook is fixedly connected with a car, and a dynamic vibration absorber is arranged on the rubber suspending block. The principle of the dynamic vibration absorber includes that a mass spring resonance system is additionally arranged on a vibrating object, vibration of the vibrating object is reduced under the counter force of the additional system during resonance vibration, and therefore, vibration generated by the driving suspending hook during resonance vibration can be evidently reduced, damping effect of the rubber suspending block is remarkably improved, stability of the car is guaranteed and comfortableness of the integral car is improved since the dynamic vibration absorber is arranged on the exhaust suspension device.
Description
Technical field
The utility model relates to the auto parts and components field, particularly the exhaust erecting by overhang.
Background technology
Driving engine is topmost vibration of car load and driving source, its transfer of vibration supply and exhaust system, pass to vehicle body by hangar system then, cause uncomfortable sensation to the passenger, so exhaust system is one of the most important vibration source of car load and noise source, be one of most important target of automobile vibration control so the power of vehicle body is passed in control.The exhaust hangar system is hung piece by two suspension hooks and a rubber and is formed.Be called initiatively suspension hook with the exhaust system connecting shackle, the suspension hook that links to each other with car body is called passive suspension hook, the power that is delivered on the vehicle body is to weigh the important indicator of hangar system, the power that is delivered on the vehicle body depends on two factors: the one, and the oscillation frequency of active suspension hook, the 2nd, rubber hangs the transmission frequency of piece.The transport that common rubber hangs piece can be controlled by its rigidity, and initiatively the rigidity of suspension hook and mode are for guaranteeing that vibration isolating effect is extremely important, and suspension hook reaches self vibration isolating effect in order to make initiatively, and initiatively the mode of suspension hook need satisfy:
Yet in the actual automotive development process, being subjected to various space constraint causes the active suspension hook longer, the situation that rigidity is lower, so its model frequency also often can't satisfy above-mentioned NVH (Noise, Vibration, Harshness) performance requriements, thereby cause driving engine active suspension hook when a certain rotating speed to produce resonance effect, force the vibration aggravation, reduce the effectiveness in vibration suppression that rubber hangs piece, have a strong impact on the vehicle body stationarity, reduced the traveling comfort of vehicle.
Summary of the invention
The purpose of this utility model provides a kind of initiatively influence of suspension hook generation resonance, exhaust erecting by overhang of good damping result of reducing.
For achieving the above object, the utility model has adopted following technical scheme: a kind of exhaust erecting by overhang, comprise active suspension hook, passive suspension hook and be connected in two rubber between the suspension hook and hang piece, described active suspension hook links to each other with freeing pipe, passive suspension hook and vehicle body are affixed, and rubber hangs piece and is provided with dynamic vibration absorber.
Owing to adopt above technical scheme, the principle of dynamic vibration absorber is an added mass spring resonance system on vibrating object, the antagonistic force that this spare system produces when resonance can make the vibration of vibrating object reduce, can obviously reduce the vibration that the active suspension hook brings after therefore dynamic vibration absorber is set when producing resonance, significantly promote the effectiveness in vibration suppression that rubber hangs piece, guarantee the stationarity of vehicle body, improve the comfort level of car load.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
A kind of exhaust erecting by overhang, comprise initiatively suspension hook 20, passive suspension hook 30 and be connected in two rubber between the suspension hook and hang piece 10, described active suspension hook 20 links to each other with freeing pipe, passive suspension hook 30 is affixed with vehicle body, rubber hangs piece 10 and is provided with dynamic vibration absorber 11, the natural frequency of dynamic vibration absorber 11 is with initiatively suspension hook 20 oscillation frequencys are consistent or close, the principle of dynamic vibration absorber is an added mass spring resonance system on vibrating object, when 20 vibrations of active suspension hook, cause the vibration that dynamic vibration absorber 11 produces 180 ° of phase differences, thereby offset the initiatively vibrational energy of suspension hook 20, so the vibration of dynamic vibration absorber 11 can effective attenuation the Oscillation Amplitude of suspension hook 20 initiatively, thereby reduce the transport of vibration to passive suspension hook 30, significantly promote the effectiveness in vibration suppression that rubber hangs piece 10, the power that is delivered on the vehicle body is reduced greatly, guarantee the stationarity of vehicle body, improve the car load comfort level.
It is the cylindric of hollow that described rubber hangs piece 10, dynamic vibration absorber 11 is arranged in the vacancy that rubber hangs piece 10, rubber hangs the whole similar circular of piece 10, adopt the structure of hollow form to be convenient to regulate the rigidity that rubber hangs piece 10, improve the transmission frequency that rubber hangs piece 10, guarantee the effectiveness in vibration suppression of erecting by overhang.Because dynamic vibration absorber 11 can produce vibration in working order the time, the middle vacancy that rubber hangs piece 10 provides the shake space for dynamic vibration absorber 11, so this structure saves space, reduces the volume of erecting by overhang.
Described dynamic vibration absorber 11 is the mass 11a of outside face cladding rubber layer, the outside face polysulphide rubbers layer of mass 11a constitutes dynamic vibration absorber 11, easy to process, low being easy to of cost realizes that the natural frequency value of dynamic vibration absorber 11 can guarantee by the quality size of quality of regulation piece 11a and the rigidity of rubber.
Described rubber hangs piece 10 and dynamic vibration absorber 11 is integral structure, dynamic vibration absorber 11 is hung piece 10 sulfurations in rubber be one, and this is simple in structure, and cost is low, and is easy for installation, and practicality is stronger.
Described dynamic vibration absorber 11 is near active suspension hook 20, the rubber that also can be described as near active suspension hook 20 place portions hangs the hollow wall of piece 10 to middle vacancy extension formation protuberance 11b, this protuberance 11b is for to hang the elastomeric material of piece 10 with material with rubber, mass 11a is placed in the protuberance 11b, constitutes dynamic vibration absorber 11.Because initiatively suspension hook 20 directly links to each other with freeing pipe, therefore near the Oscillation Amplitude maximum of suspension hook 20 positions initiatively, dynamic vibration absorber 11 is arranged near an end of suspension hook 20 initiatively, can more responsively offset vibration, raising damping effect more timely.
Claims (5)
1. exhaust erecting by overhang, comprise active suspension hook (20), passive suspension hook (30) and be connected in two rubber between the suspension hook and hang piece (10), described active suspension hook (20) links to each other with freeing pipe, passive suspension hook (30) is affixed with vehicle body, and it is characterized in that: rubber hangs piece (10) and is provided with dynamic vibration absorber (11).
2. exhaust erecting by overhang according to claim 1 is characterized in that: it is the cylindric of hollow that described rubber hangs piece (10), and dynamic vibration absorber (11) is arranged in the vacancy that rubber hangs piece (10).
3. exhaust erecting by overhang according to claim 1 is characterized in that: described dynamic vibration absorber (11) is the mass (11a) of outside face cladding rubber layer.
4. exhaust erecting by overhang according to claim 1 and 2 is characterized in that: described rubber hangs piece (10) and dynamic vibration absorber (11) is an integral structure.
5. exhaust erecting by overhang according to claim 2 is characterized in that: described dynamic vibration absorber (11) is near active suspension hook (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201123890U CN202038163U (en) | 2011-04-15 | 2011-04-15 | Exhaust suspension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201123890U CN202038163U (en) | 2011-04-15 | 2011-04-15 | Exhaust suspension device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202038163U true CN202038163U (en) | 2011-11-16 |
Family
ID=44965626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201123890U Expired - Lifetime CN202038163U (en) | 2011-04-15 | 2011-04-15 | Exhaust suspension device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202038163U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214262A (en) * | 2014-08-21 | 2014-12-17 | 清华大学苏州汽车研究院（相城） | Dynamic vibration absorber capable of improving NVH and matching method thereof |
| CN113685473A (en) * | 2021-08-19 | 2021-11-23 | 奇瑞汽车股份有限公司 | Vibration damping structure |
-
2011
- 2011-04-15 CN CN2011201123890U patent/CN202038163U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214262A (en) * | 2014-08-21 | 2014-12-17 | 清华大学苏州汽车研究院（相城） | Dynamic vibration absorber capable of improving NVH and matching method thereof |
| CN104214262B (en) * | 2014-08-21 | 2017-01-11 | 清华大学苏州汽车研究院（相城） | Dynamic vibration absorber capable of improving NVH and matching method thereof |
| CN113685473A (en) * | 2021-08-19 | 2021-11-23 | 奇瑞汽车股份有限公司 | Vibration damping structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111116 |
|
| CX01 | Expiry of patent term |