CN201078432Y - Damp changeable oscillating damper - Google Patents
Damp changeable oscillating damper Download PDFInfo
- Publication number
- CN201078432Y CN201078432Y CNU200720073829XU CN200720073829U CN201078432Y CN 201078432 Y CN201078432 Y CN 201078432Y CN U200720073829X U CNU200720073829X U CN U200720073829XU CN 200720073829 U CN200720073829 U CN 200720073829U CN 201078432 Y CN201078432 Y CN 201078432Y
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- shock absorber
- chamber
- magnetic layer
- damping shock
- electromagnetic coil
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Abstract
The utility model discloses a variable damping vibration isolator, comprising a rubber body, a non magnetic conducting layer and a rubber bag; wherein, the rubber body is positioned at a side of the non magnetic conducting layer to form a first chamber, and the rubber bag is installed at the other side of the non magnetic conducting layer to form a second chamber. The magnetic rheologic liquid is poured in the first and second chambers. An electromagnetic coil is installed at the center of the non magnetic conducting layer, and a damping hole is mounted at the center of the electromagnetic coil for communicating with the first and second chambers. The viscosity of the magnetic rheologic liquid passing through the damping hole is changed by an external magnetic field of the electromagnetic coil, so that the purpose of damping variation is achieved.
Description
Technical field
The utility model relates to the vibration damper in a kind of vibration and noise reducing anti-impact product scope, relates in particular to a kind of change damping shock absorber.
Background technique
Vibration isolation and anti-impact are the requirements for two aspects of vibration damper.The natural frequency of vibration isolation requirement system must be littler by 1/ than external interference frequency
Doubly.Because vibration damper is a yielding support, vibrating isolation system must be considered stability.Therefore, the general principle of selecting for use is that frequency under the load rating of vibration damper is 1/2～1/3 of an interfering frequency, and can not be lower, at this moment no matter the stiffness curve of vibration damper is hardware features or software feature.Anti-impact requires vibration damper that good software feature is arranged, so that absorb energy in a large number in impact process, requires vibration damper that very big deformation space is arranged for this reason, and software feature and big deformation space make the bad stability of vibrating isolation system.
Rubber material is a most widely used vibroisolating material in the vibration damper.Rubber shock absorber has long service life, and three-way rigidity is adjusted easily, high comprehensive performance, and series of advantages such as moderate cost, its performance have obtained approval widely.But existing rubber shock absorber all is that damping constant is less, and unadjustable, and erosion-resisting characteristics is limited.
Germany every and solid company employed vibration shock isolation device in track traffic, adopt the structural type of spring and damper parallel connection, consume mechanical energy by damper, spring provides rigidity, but also can't change damping constant according to the size of dynamic excitation power, and the low 3～5Hz that is generally of the vertical natural frequency of metal spring, be difficult to adjust three-way rigidity, volume is bigger, and at 90Hz after 100Hz, very big standing wave effect is just arranged, so the high-frequency vibration isolation effect is unsatisfactory.
The model utility content
Technical problem to be solved in the utility model provides a kind of change damping shock absorber, can in breaking through journey according to different values excited by impact, change the damping constant of vibration damper, consume a part of impulse machine energy with this, reduce the distortion of vibration damper, thereby improve the stability of vibrating isolation system.
The utility model is that to solve the problems of the technologies described above the technological scheme that adopts be a kind of change damping shock absorber, comprise an elastic body, a non-magnetic layer and an elastomeric bladder, wherein the elastic body is located at a side of non-magnetic layer, to form one first chamber, elastomeric bladder is located at non-magnetic layer opposite side, to form one second chamber, perfusion magnetic flow liquid in this first chamber and second chamber; Non-magnetic layer central authorities are provided with electromagnetic coil, and have a damping hole at the electromagnetic coil center, to be communicated with this first chamber and second chamber.
Above-mentioned change damping shock absorber also can comprise a shell, is located at the opposite side of non-magnetic layer, to surround elastomeric bladder.In addition, above-mentioned change damping shock absorber also can comprise a seal ring, is located between shell and the non-magnetic layer, and elastomeric bladder is positioned at the sealing circle.
In the above-mentioned change damping shock absorber, the elastic body can be made of rubber material, and in addition, elastomeric bladder can be a rubber bag tank.
In the above-mentioned change damping shock absorber, non-magnetic layer is to be made of non-magnet material, and this non-magnet material can be an aluminum alloy.
Above-mentioned change damping shock absorber also comprises a variable power supply, is connected to electromagnetic coil, and a variable current is provided, and makes electromagnetic coil form the variation magnetic field.
Therefore, the vibration isolation of change damping shock absorber of the present utility model, anti-impact effect are apparently higher than general vibration damper, and it can solve the occasion that part can't be used common vibration damper at low frequency, high frequency.In addition, by changing damping constant, this change damping shock absorber can also reach the purpose of avoiding resonating, and therefore can more be applicable to the impact field.
Description of drawings
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent, below in conjunction with accompanying drawing embodiment of the present utility model is elaborated, wherein:
Fig. 1 is an embodiment's of a change damping shock absorber of the present utility model schematic representation.
Embodiment
See also shown in Figure 1, the utility model becomes an embodiment of damping shock absorber, mainly comprise a rubber body 1, one a non-magnetic layer 3 and a rubber bag tank 5, wherein rubber body 1 is located at a side (upside as shown in Figure 1) of non-magnetic layer 3, to form one first chamber 11, and rubber bag tank 5 is located at the opposite side (downside as shown in Figure 1) of non-magnetic layer 3, to form one second chamber 12, all pours into magnetic flow liquid 2 in this first chamber 11 and second chamber 12.Non-magnetic layer 3 central authorities are provided with electromagnetic coil 4, and have a damping hole 41 at electromagnetic coil 4 centers, to be communicated with this first chamber 11 and second chamber 12.Electromagnetic coil 4 can receive an additional power source (figure does not show), and forms a magnetic field, and under this magnetic flow liquid outside magnetic field effect, solid particle wherein can change by polarization, thereby change the shear modulus of fluid.
In addition, the vibration damper of present embodiment also comprises a shell 6, and it is located at the opposite side of non-magnetic layer 3, to surround rubber bag tank 3.Preferably, also comprise a seal ring 7, be located between shell 6 and the non-magnetic layer 3, and rubber bag tank 3 is positioned at sealing circle 7, to reach sealing effect.
Non-magnetic layer 3 is to be made of non-magnet material, and this non-magnet material for example is an aluminum alloy, but not as limit.
The following describes the working procedure of above-mentioned change damping shock absorber.
When vibration damper is subjected to impact force F, rubber body 1 stressed pressing down, magnetic flow liquid 2 from rubber body 1 formed first chamber 11 when damping hole 41 flows into formed second chamber 12 of rubber bag tank 5, rubber bag tank 5 expands, and the pressure of first chamber 11 reduces, and rubber body 1 is restored, thereby cause vacuum at first chamber 11, and the rubber of rubber bag tank 5 also can shrink, and liquid is pumped into first chamber 11 again, thereby can realize continual work.Consume the mechanical energy of impacting generation by this damping process.
Above-mentioned additional power source is a variable power supply, and it is connected to electromagnetic coil 4, and a variable current I is provided, and makes electromagnetic coil 4 form variation magnetic field B.In above-mentioned damping process, by changing the size of current value I, the magnetic field B that electromagnetic coil is produced changes, and for example from 0 to maximum value, thereby the viscosity of the magnetic flow liquid at damping hole 41 places that flow through is changed, and reaches the purpose that becomes damping.
This damping shock absorber also can be equipped with sensor, can carry out ACTIVE CONTROL to vibrating isolation system, reaches the purpose of adjusting damping.
Therefore, the vibration isolation of change damping shock absorber of the present utility model, anti-impact effect are apparently higher than general vibration damper, and it can solve the occasion that part can't be used common vibration damper at low frequency, high frequency.In addition, by changing damping constant, this change damping shock absorber can also reach the purpose of avoiding resonating, and therefore can more be applicable to the impact field.
Though the utility model discloses as above with preferred embodiment; right its is not in order to limit the utility model; any those skilled in the art; in not breaking away from spirit and scope of the present utility model; when doing a little modification and perfect, therefore protection domain of the present utility model is worked as with being as the criterion that claims were defined.
Claims (8)
1. one kind becomes damping shock absorber, it is characterized in that, comprise an elastic body, a non-magnetic layer and an elastomeric bladder, wherein the elastic body is located at a side of non-magnetic layer, to form one first chamber, elastomeric bladder is located at non-magnetic layer opposite side, to form one second chamber, perfusion magnetic flow liquid in this first chamber and second chamber; Non-magnetic layer central authorities are provided with electromagnetic coil, and have a damping hole at the electromagnetic coil center, to be communicated with this first chamber and second chamber.
2. change damping shock absorber as claimed in claim 1 is characterized in that, also comprises a shell, is located at the described opposite side of described non-magnetic layer, to surround described elastomeric bladder.
3. change damping shock absorber as claimed in claim 2 is characterized in that, also comprises a seal ring, is located between described shell and the described non-magnetic layer, and described rubber bag tank is positioned at described seal ring.
4. change damping shock absorber as claimed in claim 1 is characterized in that described elastic body is made of rubber material.
5. change damping shock absorber as claimed in claim 1 is characterized in that described elastomeric bladder is a rubber bag tank.
6. change damping shock absorber as claimed in claim 1 is characterized in that, described non-magnetic layer is to be made of non-magnet material.
7. change damping shock absorber as claimed in claim 1 is characterized in that described non-magnet material is an aluminum alloy.
8. change damping shock absorber as claimed in claim 1 is characterized in that, also comprises a variable power supply, is connected to described electromagnetic coil, and a variable current is provided, and makes described electromagnetic coil form the variation magnetic field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720073829XU CN201078432Y (en) | 2007-08-20 | 2007-08-20 | Damp changeable oscillating damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720073829XU CN201078432Y (en) | 2007-08-20 | 2007-08-20 | Damp changeable oscillating damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201078432Y true CN201078432Y (en) | 2008-06-25 |
Family
ID=39570494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720073829XU Expired - Fee Related CN201078432Y (en) | 2007-08-20 | 2007-08-20 | Damp changeable oscillating damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201078432Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697106A (en) * | 2014-01-15 | 2014-04-02 | 沈阳祺盛机械有限公司 | Composite type high-performance buffer |
| CN107559371A (en) * | 2017-09-07 | 2018-01-09 | 北京控制工程研究所 | A kind of semi-active vibration-isolating device based on magnetic converting technique |
| CN108533667A (en) * | 2018-05-07 | 2018-09-14 | 吉林大学 | A kind of decoupling film rigidity intelligent adjustable magnetorheological hydraulic mount |
| CN110608261A (en) * | 2019-09-23 | 2019-12-24 | 安徽誉林汽车部件有限公司 | Hydraulic suspension |
| CN114562534A (en) * | 2020-11-27 | 2022-05-31 | 比亚迪股份有限公司 | Buffer block, buffer block rigidity control method and automobile suspension system |
-
2007
- 2007-08-20 CN CNU200720073829XU patent/CN201078432Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697106A (en) * | 2014-01-15 | 2014-04-02 | 沈阳祺盛机械有限公司 | Composite type high-performance buffer |
| CN107559371A (en) * | 2017-09-07 | 2018-01-09 | 北京控制工程研究所 | A kind of semi-active vibration-isolating device based on magnetic converting technique |
| CN107559371B (en) * | 2017-09-07 | 2020-09-18 | 北京控制工程研究所 | Semi-active vibration isolator based on magneto-rheological technology |
| CN108533667A (en) * | 2018-05-07 | 2018-09-14 | 吉林大学 | A kind of decoupling film rigidity intelligent adjustable magnetorheological hydraulic mount |
| CN110608261A (en) * | 2019-09-23 | 2019-12-24 | 安徽誉林汽车部件有限公司 | Hydraulic suspension |
| CN114562534A (en) * | 2020-11-27 | 2022-05-31 | 比亚迪股份有限公司 | Buffer block, buffer block rigidity control method and automobile suspension system |
| CN114562534B (en) * | 2020-11-27 | 2023-05-09 | 比亚迪股份有限公司 | Buffer block, buffer block rigidity control method and automobile suspension 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: 20080625 Termination date: 20130820 |