CN203214751U - Dynamic absorber capable of adjusting resonant frequency rapidly - Google Patents
Dynamic absorber capable of adjusting resonant frequency rapidly Download PDFInfo
- Publication number
- CN203214751U CN203214751U CN 201320165387 CN201320165387U CN203214751U CN 203214751 U CN203214751 U CN 203214751U CN 201320165387 CN201320165387 CN 201320165387 CN 201320165387 U CN201320165387 U CN 201320165387U CN 203214751 U CN203214751 U CN 203214751U
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- resonant frequency
- vibration absorber
- connecting rod
- dynamic vibration
- rubber elastomer
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Abstract
A dynamic absorber capable of adjusting a resonant frequency rapidly is characterized by comprising a mass block, a mounting bracket and a rubber elastic body, wherein a mounting hole is formed in the mass block; the mounting bracket comprises a fixing panel and a connecting rod; one end of the connecting rod is fixed on the fixing panel while the rubber elastic body is fixed at the other end of the connecting rod; one end of the connecting rod for fixing the rubber elastic body is movably and adjustably inserted into the mounting hole. The dynamic absorber capable of adjusting the resonant frequency rapidly has the beneficial effects that: 1, the dynamic absorber capable of adjusting the resonant frequency rapidly is simple in structure, convenient to assemble and produce, and good for implementation in batches; 2, the dynamic absorber capable of adjusting the resonant frequency rapidly is convenient to use, adjusts conveniently, increases competitive capacity of products, achieves a wide market foreground and is good for popularization and application.
Description
[technical field]
The utility model relates to a kind of vibration damping equipment of automobile, but relates to the dynamic vibration absorber of quick adjustment resonant frequency in particular.
[background technique]
Method commonly used is to change rigidity and quality to avoid resonance in the vibration control, adopts vibration isolator to reduce transfer of vibration, adopts the vibrational energy of dynamic vibration absorber absorption portion etc.
As Fig. 1, shown in Figure 2, the principle of dynamic vibration absorber is associated mass spring resonance system on vibrating object, and the reaction force that this spare system produces when resonance can make the vibration of vibrating object reduce.When exciting force based on single-frequency, or frequency is very low, in the time of should not adopting general vibration isolator, dynamic vibration absorber is particularly useful.As additional a series of this bump leveller, can also offset the vibration of different frequency.M among the figure
1It is the quality of vibrating object; m
2It is the oscillating mass of dynamic vibration absorber; K
1Rigidity for vibrating object; K
2Rigidity for dynamic vibration absorber; x
1Displacement for vibrating object; x
2Displacement for dynamic vibration absorber; F is the suffered vibration force of object.
Normally used a kind of dynamic vibration absorber is as shown in Figure 3 on the automobile vibration parts at present, its structure comprises support 1 ＇, rubber elastomer 2 ＇ and mass block 3 ＇, typically use rubber elastomer as elastic element, determined the stiffness K value of dynamic vibration absorber by performances such as the size of rubber parts, quiet rigidity; With the mass block as dynamic vibration absorber such as slug, the quality of slug is exactly the quality m of dynamic vibration absorber
2Metal quality piece and rubber elastomer, mounting bracket closely bond together by the one-body molded back of mould three on equipment such as vulcanizer, become the fixing dynamic vibration absorber of K value and m value, have fixing frequencies omega
aMainly be according to given frequencies omega for the undamped dynamic vibration absorber
aDesign, but as ω and ω
aDepart from big slightly back dynamic vibration absorber and act on basically not quite, therefore only can play the absorbing effect under specific frequency, the using scope of undamped dynamic vibration absorber is restricted.
In practical engineering application such as automobile new model development and Design, present development process generally is to pass through simulation model, parameters such as the bump leveller quality of calculating and optimization the best, rigidity are installed on the real vehicle by bump leveller manufacturer making bump leveller exemplar and test.Because the result of real vehicle test result and simulation calculation has certain difference, need to adjust the parameter of dynamic vibration absorber again and carry out testing authentication on the real vehicle by being installed on behind the bump leveller manufacturer making exemplar again according to the real vehicle using effect.Because the Mould Machining complexity of bump leveller, the high process-cycle simultaneously of cost is longer, and the cycle that designs and produces generally needed for 2～4 weeks, had therefore had a strong impact on the development progress of vehicle complete vehicle and had caused development cost high.
[model utility content]
Therefore, the purpose of this utility model is at the prior art deficiency, but the dynamic vibration absorber of a kind of quick adjustment resonant frequency and oscillating mass is provided, it is by realizing quick adjustment bump leveller parameter, thereby adapt to different vibration damping demands, increase work efficiency, save production cost.
For achieving the above object, the utility model by the following technical solutions:
But the dynamic vibration absorber of quick adjustment resonant frequency, it is characterized in that including mass block, mounting bracket, rubber elastomer, described mass block is provided with mounting hole, described mounting bracket includes fixed panel and connecting rod, one end of connecting rod is fixed on the fixed panel, the other end fixedly has rubber elastomer, and described connecting rod is fixedly in the insertion mounting hole of the movable adjusting of an end of rubber elastomer.
But the dynamic vibration absorber of aforesaid quick adjustment resonant frequency can be by mobile or rotation and the actual rubber elastomer size that plays the elastic component effect of quick adjustment is adjusted the K value of bump leveller fast and subtly thereby it is characterized in that.
But the dynamic vibration absorber of aforesaid quick adjustment resonant frequency is characterized in that the rubber elastomer screw thread is fixed on the connecting rod.
But the dynamic vibration absorber of aforesaid quick adjustment resonant frequency is characterized in that being provided with in the mounting hole internal thread, and described rubber elastomer is provided with outside thread and is connected with the mounting hole spiral.
But the dynamic vibration absorber of aforesaid quick adjustment resonant frequency is characterized in that described mass block is cylindrical.
But the dynamic vibration absorber of aforesaid quick adjustment resonant frequency is characterized in that described rubber elastomer is tubulose, is enclosed within on the connecting rod fixing.
The beneficial effects of the utility model have: 1, simple in structure, and be convenient to assembling and production, be conducive to implement in batches; 3, easy to use, be convenient to regulate, can shorten the design cycle of vibration member required drive bump levellers such as automobile new model design significantly in the parameter of using on-the-spot quick adjustment dynamic vibration absorber.Increase the competitive capacity of product, have vast market prospect and be conducive to apply.
[description of drawings]
Below in conjunction with accompanying drawing and embodiment the utility model is elaborated
Fig. 1 is the object vibration schematic representation;
Fig. 2 is the dynamic vibration absorber schematic diagram;
Fig. 3 is existing a kind of dynamic vibration absorber structural representation;
Fig. 4 is structural representation of the present utility model.
[embodiment]
As shown in Figure 4, but the dynamic vibration absorber of the quick adjustment resonant frequency of the utility model indication, include mass block 1, mounting bracket 2, rubber elastomer 3, described mass block 1 is provided with mounting hole 4, described mounting bracket 2 includes fixed panel 5 and connecting rod 6, and described mass block 1 links together by rubber elastomer 3 with connecting rod 6.
Can be by mobile or rotation and thereby actual rubber elastomer 3 sizes that play the elastic component effect of quick adjustment are adjusted the K value of bump leveller fast and subtly.Described mass block 1 can be an integral body, also can be that a plurality of mass blockes connect as one by modes such as bolt, screw threads, thereby can change the oscillating mass of dynamic vibration absorber fast.
The utility model optimal way: rubber elastomer 3 screw threads are fixed on the connecting rod 6.Be provided with internal thread in mounting hole 4, described rubber elastomer 3 is provided with outside thread and is connected with mounting hole 4 spirals.
The connection of mass block 1, glue elastomer 3 and connecting rod 6 can also be modes such as clamping, is equal to Placement with other and replaces all belonging to protection domain of the present utility model, does not just give unnecessary details one by one at this.
The utility model optimal way: be cylindrical with described mass block 1, what make mass block 1 periphery is subjected to force coefficient identical.
The utility model optimal way: described rubber elastomer 3 is tubulose, is enclosed within on the connecting rod 6 fixing.Rubber elastomer 3 and mass block 1 are fitted closely.
Thereby the utility model can be by rotation after installation the actual sebific duct length that plays the elastic component effect of quick adjustment adjust the K value of bump leveller fast and subtly, surface of contact is more big, the K value is more big, the absorbing coefficient is more big, surface of contact is more little, and the K value is more little, and the absorbing coefficient is more little.And can further enlarge the resonant frequency ω of this dynamic vibration absorber by selecting the combination of different sebific ducts and mass block in the debug process at the scene
aRegulation range.
Claims (6)
1. but the dynamic vibration absorber of quick adjustment resonant frequency, it is characterized in that including mass block (1), mounting bracket (2), rubber elastomer (3), described mass block (1) is provided with mounting hole (4), described mounting bracket (2) includes fixed panel (5) and connecting rod (6), one end of connecting rod (6) is fixed on the fixed panel (5), the other end fixedly has rubber elastomer (3), and described connecting rod (6) is fixedly in the insertion mounting hole (4) of the movable adjusting of an end of rubber elastomer (3).
But 2. the dynamic vibration absorber of quick adjustment resonant frequency according to claim 1, it is characterized in that can be by mobile or rotation and quick adjustment actual play the rubber elastomer (3) of elastic component effect thus size is adjusted the K value of bump leveller fast and subtly.
3. but the dynamic vibration absorber of quick adjustment resonant frequency according to claim 1 is characterized in that rubber elastomer (3) screw thread is fixed on the connecting rod (6).
4. but the dynamic vibration absorber of quick adjustment resonant frequency according to claim 1 is characterized in that being provided with internal thread in the mounting hole (4), and described rubber elastomer (3) is provided with outside thread and is connected with mounting hole (4) spiral.
5. but the dynamic vibration absorber of quick adjustment resonant frequency according to claim 1 is characterized in that described mass block (1) is for cylindrical.
6. but the dynamic vibration absorber of quick adjustment resonant frequency according to claim 1 is characterized in that described rubber elastomer (3) is tubulose, is enclosed within connecting rod (6) and goes up fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320165387 CN203214751U (en) | 2013-04-03 | 2013-04-03 | Dynamic absorber capable of adjusting resonant frequency rapidly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320165387 CN203214751U (en) | 2013-04-03 | 2013-04-03 | Dynamic absorber capable of adjusting resonant frequency rapidly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203214751U true CN203214751U (en) | 2013-09-25 |
Family
ID=49204293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320165387 Withdrawn - After Issue CN203214751U (en) | 2013-04-03 | 2013-04-03 | Dynamic absorber capable of adjusting resonant frequency rapidly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203214751U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206474A (en) * | 2013-04-03 | 2013-07-17 | 广东邦达实业有限公司 | Dynamic vibration absorber with resonant frequency capable of being quickly adjusted |
| CN104728326A (en) * | 2015-03-18 | 2015-06-24 | 柳州金鸿橡塑有限公司 | Shear type mass shock absorber |
| CN106032834A (en) * | 2014-12-16 | 2016-10-19 | 株式会社大兴R&T | Dynamic damper |
| CN113565912A (en) * | 2021-06-22 | 2021-10-29 | 东风汽车集团股份有限公司 | Dynamic vibration absorption structure and method with self-adaptive and fast-adjustable resonance frequency |
-
2013
- 2013-04-03 CN CN 201320165387 patent/CN203214751U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206474A (en) * | 2013-04-03 | 2013-07-17 | 广东邦达实业有限公司 | Dynamic vibration absorber with resonant frequency capable of being quickly adjusted |
| CN106032834A (en) * | 2014-12-16 | 2016-10-19 | 株式会社大兴R&T | Dynamic damper |
| CN104728326A (en) * | 2015-03-18 | 2015-06-24 | 柳州金鸿橡塑有限公司 | Shear type mass shock absorber |
| CN113565912A (en) * | 2021-06-22 | 2021-10-29 | 东风汽车集团股份有限公司 | Dynamic vibration absorption structure and method with self-adaptive and fast-adjustable resonance frequency |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130925 Effective date of abandoning: 20150408 |
|
| RGAV | Abandon patent right to avoid regrant |