CN201982575U - Variable-rigidity vibration isolator - Google Patents
Variable-rigidity vibration isolator Download PDFInfo
- Publication number
- CN201982575U CN201982575U CN2011201154051U CN201120115405U CN201982575U CN 201982575 U CN201982575 U CN 201982575U CN 2011201154051 U CN2011201154051 U CN 2011201154051U CN 201120115405 U CN201120115405 U CN 201120115405U CN 201982575 U CN201982575 U CN 201982575U
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- vibration
- vibration isolator
- frame
- isolator
- coil
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- 238000002955 isolation Methods 0.000 claims abstract description 13
- 238000013016 damping Methods 0.000 claims abstract description 7
- 229920001971 elastomer Polymers 0.000 claims abstract 6
- 239000000806 elastomer Substances 0.000 claims abstract 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000518 rheometry Methods 0.000 description 11
- 238000012856 packing Methods 0.000 description 4
- 238000010008 shearing Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
本实用新型公开了一种可变刚度的隔振器，特点是包括导磁骨架、线圈、磁流变弹性体和用于与振源相接触的隔振座，线圈固定设置在导磁骨架上，磁流变弹性体固定设置在导磁骨架内，振座上一体设置有插脚，插脚垂直插入磁流变弹性体中；优点是本装置通过磁流变弹性体剪切方向上刚度的变化来隔振或减振，使其在振源频率不断变化的情况下也能达到较好的减振效果；而且导磁骨架上设置有二次减振机构，当振源在剪切方向上施加给隔振座的力过大时，可通过限位杆和导磁骨架传递给二次减振机构来减振，从而使整个隔振器可承受较大的振幅和较大的剪切力，使其具有较好的适应性，可对不同场合的振源进行隔振。
The utility model discloses a vibration isolator with variable stiffness, which is characterized in that it comprises a magnetically conductive frame, a coil, a magnetorheological elastic body and a vibration isolating seat for contacting with a vibration source, and the coil is fixedly arranged on the magnetically conductive frame , the magnetorheological elastomer is fixedly arranged in the magnetically permeable frame, and the vibrating base is integrally provided with pins, which are inserted vertically into the magnetorheological elastomer; Vibration isolation or vibration reduction, so that it can achieve a better vibration reduction effect even when the frequency of the vibration source is constantly changing; and a secondary vibration reduction mechanism is installed on the magnetic permeable frame, when the vibration source is applied to the When the force of the vibration isolator is too large, it can be transmitted to the secondary vibration damping mechanism through the limit rod and the magnetic conductive frame to reduce the vibration, so that the entire vibration isolator can withstand large amplitude and large shear force, so that It has good adaptability and can perform vibration isolation for vibration sources in different occasions.
Description
Technical field
The utility model relates to a kind of vibration damping equipment, relates in particular to a kind of vibration isolator of stiffness variable.
Background technique
Vibration damper is used very extensive at mechanical field, it is mainly used in reduces the vibration interference of vibration source to equipment or object, and vibration isolator is exactly a kind of in the vibration damper.But existing vibration isolator is subjected to the restriction of its structure, and its frequency is single or narrower, and rigidity is immutable, and the amplitude that can bear is limited, and the frequency of vibration source is a change at random in the reality, causes present vibration isolator can't reach desired vibration isolating effect.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of variable rigidity, can bear bigger amplitude, also can reach the vibration isolator of the stiffness variable of vibration isolating effect preferably under the situation that the vibration source frequency constantly changes.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: a kind of vibration isolator of stiffness variable, comprise magnetic conduction skeleton, coil, magnetic rheology elastic body and be used for and the contacted vibration isolation seat of vibration source, described coil stationary is arranged on the described magnetic conduction skeleton, described magnetic rheology elastic body is fixedly installed in the described magnetic conduction skeleton, be wholely set pin on the described vibration isolation seat, described pin is vertical to be inserted in the described magnetic rheology elastic body.
Described magnetic conduction skeleton is provided with the secondary damper mechanism.
Described secondary damper mechanism comprises position-limited lever, base, described position-limited lever level simultaneously passes described magnetic rheology elastic body and is connected with pin and with described magnetic conduction skeletal fixation, is set with at least a in spring or the damper between described magnetic conduction skeleton and the described base.
Be arranged with packing ring on the described position-limited lever, described packing ring is arranged between described position-limited lever and the described pin, to reduce the vibratory impulse of vibration isolation seat to position-limited lever.
Compared with prior art, the utility model has the advantages that because the pin of vibration isolation seat is inserted in the magnetic rheology elastic body, and magnetic rheology elastic body can change along with its shearing rigidity of variation of externally-applied magnetic field, therefore this device comes vibration isolation or vibration damping by the variation of rigidity on the magnetic rheology elastic body shear direction, makes it also can reach the better damping effect under the situation that the vibration source frequency constantly changes; And the magnetic conduction skeleton is provided with the secondary damper mechanism, when vibration source imposes on the power of vibration isolation seat when excessive on shear direction, can pass to the secondary damper mechanism by position-limited lever and magnetic conduction skeleton and come vibration damping, thereby make whole vibration isolator can bear bigger amplitude and bigger shearing force, make it have adaptability preferably, can carry out vibration isolation the vibration source of different occasions.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in the figure, a kind of vibration isolator of stiffness variable, comprise magnetic conduction skeleton 1, coil 2, magnetic rheology elastic body 3, base 4 and being used for and the contacted vibration isolation seat 5 of vibration source, coil 2 is fixedly installed on the magnetic conduction skeleton 1, magnetic rheology elastic body 3 is fixedly installed in the magnetic conduction skeleton 1, be wholely set pin 51 on the vibration isolation seat 5, pin 51 vertical insertions in the magnetic rheology elastic body 3, magnetic conduction skeleton 1 internal fixation is connected with position-limited lever 6, position-limited lever 6 level simultaneously passes magnetic rheology elastic body 3 and pin 51, be arranged with packing ring 7 on the position-limited lever 6, packing ring 7 is arranged between position-limited lever 6 and the pin 51, is set with four groups of springs 8 and damper 9 between magnetic conduction skeleton 1 and the base 4.
In the foregoing description, except that structure shown in the accompanying drawing, can only be provided with spring 8 or damper 9 between magnetic conduction skeleton 1 and the base 4.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201154051U CN201982575U (en) | 2011-04-19 | 2011-04-19 | Variable-rigidity vibration isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201154051U CN201982575U (en) | 2011-04-19 | 2011-04-19 | Variable-rigidity vibration isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201982575U true CN201982575U (en) | 2011-09-21 |
Family
ID=44610037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201154051U Expired - Fee Related CN201982575U (en) | 2011-04-19 | 2011-04-19 | Variable-rigidity vibration isolator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201982575U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518741A (en) * | 2011-12-28 | 2012-06-27 | 中国科学技术大学 | Passive low-frequency vibration isolator |
| CN103266680A (en) * | 2013-05-23 | 2013-08-28 | 北京工业大学 | Variable stiffness limiters of shock insulation layer |
| CN105421609A (en) * | 2016-01-14 | 2016-03-23 | 同济大学 | Semi-active variable-rigidity variable-damping mixed damper |
| CN106292193A (en) * | 2015-05-24 | 2017-01-04 | 上海微电子装备有限公司 | Shock-absorbing means and vibration absorption method, Optical Coatings for Photolithography |
| CN106382325A (en) * | 2016-11-10 | 2017-02-08 | 南京理工大学 | Magnetorheological elastomer vibration isolator based on shearing-compression composite mode |
| CN109154355A (en) * | 2016-05-17 | 2019-01-04 | 本田技研工业株式会社 | Active vibration control apparatus |
| CN109826088A (en) * | 2019-03-21 | 2019-05-31 | 清华大学 | A kind of variation rigidity shear connector |
| RU2708797C2 (en) * | 2016-11-24 | 2019-12-11 | Федеральное Государственное Казенное Военное Образовательное Учреждение Высшего Образования Военный Учебно-Научный Центр Сухопутных Войск "Общевойсковая Академия Вооруженных Сил Российской Федерации" | Vehicle seat suspension with active rigidity variation system based on magnetoactive elastomers |
-
2011
- 2011-04-19 CN CN2011201154051U patent/CN201982575U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518741A (en) * | 2011-12-28 | 2012-06-27 | 中国科学技术大学 | Passive low-frequency vibration isolator |
| CN103266680A (en) * | 2013-05-23 | 2013-08-28 | 北京工业大学 | Variable stiffness limiters of shock insulation layer |
| CN103266680B (en) * | 2013-05-23 | 2015-08-19 | 北京工业大学 | A kind of Seismic Isolation of Isolation Layer variation rigidity stop |
| CN106292193B (en) * | 2015-05-24 | 2019-01-29 | 上海微电子装备（集团）股份有限公司 | Shock-absorbing means and vibration absorption method, Optical Coatings for Photolithography |
| CN106292193A (en) * | 2015-05-24 | 2017-01-04 | 上海微电子装备有限公司 | Shock-absorbing means and vibration absorption method, Optical Coatings for Photolithography |
| CN105421609A (en) * | 2016-01-14 | 2016-03-23 | 同济大学 | Semi-active variable-rigidity variable-damping mixed damper |
| CN105421609B (en) * | 2016-01-14 | 2017-07-28 | 同济大学 | Semi-active variable stiffness variable damping hybrid damper |
| CN109154355A (en) * | 2016-05-17 | 2019-01-04 | 本田技研工业株式会社 | Active vibration control apparatus |
| US10731725B2 (en) | 2016-05-17 | 2020-08-04 | Honda Motor Co., Ltd. | Active vibration control device |
| CN106382325B (en) * | 2016-11-10 | 2018-07-31 | 南京理工大学 | Based on MR elastomer vibration isolator under shearing-compression combined pattern |
| CN106382325A (en) * | 2016-11-10 | 2017-02-08 | 南京理工大学 | Magnetorheological elastomer vibration isolator based on shearing-compression composite mode |
| RU2708797C2 (en) * | 2016-11-24 | 2019-12-11 | Федеральное Государственное Казенное Военное Образовательное Учреждение Высшего Образования Военный Учебно-Научный Центр Сухопутных Войск "Общевойсковая Академия Вооруженных Сил Российской Федерации" | Vehicle seat suspension with active rigidity variation system based on magnetoactive elastomers |
| CN109826088A (en) * | 2019-03-21 | 2019-05-31 | 清华大学 | A kind of variation rigidity shear connector |
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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: 20110921 Termination date: 20140419 |