CN103615492A - Suspension type magneto-rheological damper and system - Google Patents
Suspension type magneto-rheological damper and system Download PDFInfo
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- CN103615492A CN103615492A CN201310633515.0A CN201310633515A CN103615492A CN 103615492 A CN103615492 A CN 103615492A CN 201310633515 A CN201310633515 A CN 201310633515A CN 103615492 A CN103615492 A CN 103615492A
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Abstract
The invention discloses a suspension type magneto-rheological damper and system. The damper comprises a damping bar and a magnetic field, the damping bar is made of magneto-rheological elastic materials, the magnetic field acts on the damping bar, the strength of the magnetic field can be adjusted, the upper end of the damping bar is capable of hanging a suspended component, and a connecting component used for connecting a device needing to be damped is arranged at the lower end of the damping bar. The damping bar made of the magneto-rheological elastic materials is adopted for forming the suspension type magneto-rheological damper, the overall structure is simple, the weight is low, the inertia is small, the purpose that the elasticity can be adjusted when the damper is suspended and used can be achieved by utilizing the characteristic of adjustable elasticity of the magneto-rheological elastic damping materials, the elastic coefficient can be adjusted according to different vibration and different weight of a suspended device, the high-frequency and small-amplitude vibration can be effectively and specifically damped, the suspension type magneto-rheological damper is suitable for the detection and production operation occasions where the requirement for precision is high and the suspension using is needed, and detecting precision and operation stability are guaranteed.
Description
Technical field
The present invention relates to a kind of magnetorheological damping equipment, particularly a kind ofly can guarantee that surveying instrument is not by suspension type MR damper and system thereof that extraneous vibration disturbed.
Background technique
MR damper is a kind of intelligent vibration damping device, existing bar-type magneto-rheological damper adopts piston and housing structure more, piston mostly wherein is the cylindrical consisting of magnetic conductive metal, and by the viscosity of magnetorheological medium in changing between piston and cylinder body, adjusts the damping force of its output; This type of damper structure is complicated, higher to piston and cylinder body required precision, the MR damper that adopts cylindrical piston structure because of the quality of piston is large and piston and cylinder body between gap less, for the occasion of the eccentric forces such as suspension, cannot use; And the damping vibration attenuation demand with the vibration occasion that is difficult to be applicable to the little amplitude of high frequency compared with large motional inertia; Particularly for high-precision surveying instrument etc. concerning the higher occasion of required precision, need to eliminate the interference that dither causes it, otherwise can affect its testing result and running state; Particularly, for the MR damper of piston structure, adopt magnetic flow liquid as medium, use, installation, manufacture all have higher seal request, and fabricating cost is higher, and versatility is poor.
Therefore, need a kind of damper, be used for needing damping device to hang, not only can be applicable to common damping vibration attenuation occasion, can also be pointed the vibration of the little amplitude of high frequency is carried out to effective damping, be applicable to higher to required precision and need to hang detection, the production run occasion of using, guaranteeing testing precision and traveling comfort.
Summary of the invention
In view of this, object of the present invention provides a kind of suspension type MR damper and system, be used for needing damping device to hang, not only can be applicable to common damping vibration attenuation occasion, can also be pointed the vibration of the little amplitude of high frequency is carried out to effective damping, be applicable to higher to required precision and need to hang detection, the production run occasion of using, guaranteeing testing precision and traveling comfort.
Suspension type MR damper of the present invention, comprises the amortisseur bar of being made by magnetorheological elastic material and acts on amortisseur bar and the adjustable magnetic field of intensity, the hangable sprung parts in described amortisseur bar upper end, and lower end is provided with the connected element that needs damping device for connecting.
Further, also comprise that axially, along cylinder body setting up and down, described amortisseur bar is positioned at cylinder body, described magnetic field is produced by the electromagnet or the coil that are fixed on cylinder body;
Further, described cylinder body is provided with upper end cap and lower end cap, the damper rod of described connected element for stretching out lower end cap and be slidably matched with its single-degree-of-freedom vertically, and upper end cap is fixed in described amortisseur bar upper end, and lower end is fixedly connected with the upper end of damper rod;
Further, the cross section of described cylinder body is rectangle, and the wherein relative both sides of rectangle consist of the electromagnet of strip plate structure respectively, and the polarity that forms wherein two blocks of electromagnet on relative both sides of rectangle relatively also can form the magnetic field of laterally running through amortisseur bar; The cross section of amortisseur bar is also the rectangular configuration with housing structure conformal.
Further, the other both sides of described cylinder body consist of stripe board, and described stripe board, upper end cap, lower end cap and damper rod are made by non-magnetic material; Described electromagnet forms the long limit of cylinder body rectangular cross section;
Further, described upper end cap is provided with the suspension hangers as sprung parts, and damper rod is slidably matched by self-lubricating plain bearing and lower end cap; Described electromagnet is that one side magnetic pole and magnetic pole are positioned at its internal surface;
Further, the longitudinal cross-section of described at least one direction of damper rod is T shape structure, and the wing plate of T shape structure is positioned at upper end and is fixedly connected on amortisseur bar lower end, and web and the lower end cap of T shape structure are slidably matched;
The invention also discloses a kind of damped system of utilizing the described anti-external interference of suspension type MR damper assurance device, comprise platform, suspension and at least two suspension type MR damper, described platform hangs on suspension by suspension type MR damper, and described suspension type MR damper makes platform keep balance when normality.
Further, damped system also comprises:
Weighing transducer, for gathering the weight parameter that is placed in flat equipments on stage;
Vibration parameters pick-up transducers, for the vibration parameters of acquisition platform;
Central processing unit (CPU), for receive vibration parameters pick-up transducers vibration parameters peace equipments on stage weight parameter and according to dry vibration parameters numerical value and weight parameter, to the control circuit of electromagnet, send control command, for the working state of damping adjusting bar;
Further, described suspension comprises the support of two opposition, and at least two suspension type MR damper are uniformly distributed and hang on two supports, and platform is connected in suspension type MR damper lower end.
Beneficial effect of the present invention: suspension type MR damper of the present invention and system, the amortisseur bar that employing has magnetorheological elastic material to make, be used to form suspension type MR damper, overall structure is simple, and lighter weight, inertia is less, utilize magnetorheological elastic damping material to there is elasticity and the adjustable characteristic of elasticity, reach and hang the adjustable object of elasticity while using, can be for different magnitude of vibrations, the weight size of suspension equipment is adjusted elasticity coefficient, not only can be applicable to common damping vibration attenuation occasion, can also be pointed the vibration of the little amplitude of high frequency is carried out to effective damping, be applicable to detection higher to required precision and that need suspension to use, production run occasion, guarantee testing precision and traveling comfort.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is damper structure schematic diagram of the present invention;
Fig. 2 is another longitudinal profile schematic diagram of damper of the present invention;
Fig. 3 is electromagnet structure schematic diagram;
Fig. 4 is damped system structural representation of the present invention.
Embodiment
Fig. 1 is damper structure schematic diagram of the present invention, Fig. 2 is another longitudinal profile schematic diagram of damper of the present invention, Fig. 3 is electromagnet structure schematic diagram, as shown in the figure: the suspension type MR damper of the present embodiment, comprise the amortisseur bar 1 of being made by magnetorheological elastic material and act on amortisseur bar and the adjustable magnetic field (shown in the dotted line in Fig. 1) of intensity, generally by electromagnetism magnetic field generation equipment, produce, and be equipped with necessary control circuit; The described amortisseur bar 1 hangable sprung parts in upper end, lower end is provided with the connected element that needs damping device for connecting; The present invention utilizes stretching of magnetorheological elastic material and resilient characteristic, makes Suspensible MR damper, has solved and in prior art, has not had the adjustable suspension type damper of elasticity coefficient; Amortisseur bar can adopt directly and be made by magnetorheological elastic material, also can adopt the column spring structure of magnetorheological elastic material being made to spiral, has better flexible adjustment scope and has the better adaptability to high frequency; Magnetic rheology elastic body is that the ferromagnetic particle of micro-meter scale is incorporated in high molecular polymer, and the Young's modulus of material can change with externally-applied magnetic field intensity; The present invention utilizes this properties of materials, and the elasticity of amortisseur bar is adjusted in the variation by magnetic intensity, have advantages of controllability, reversibility, response rapidly, good stability.
In the present embodiment, also comprise that axially, along cylinder body setting up and down, described amortisseur bar 1 is positioned at cylinder body, described magnetic field is produced by the electromagnet or the coil that are fixed on cylinder body; Simple and compact for structure and integrity is stronger, protection amortisseur bar is not damaged, and the present invention can be applicable in various environment, and have certain standard; Electromagnet or coil are provided with control circuit certainly, do not repeat them here.
In the present embodiment, described cylinder body is provided with upper end cap 7 and lower end cap 5, the damper rod 2 of described connected element for stretching out lower end cap and be slidably matched with its single-degree-of-freedom vertically, being slidably matched of damper rod 2 single-degree-of-freedoms makes the present invention can be used for the occasion of having relatively high expectations or requiring not have swing swinging, and can suitably increase the thickness of lower end cap 5 or adopt the structure of two lower end caps 5 can realize above-mentioned purpose; Upper end cap 7 is fixed in described amortisseur bar 1 upper end, and lower end is fixedly connected with the upper end of damper rod 2; Above-mentioned fixed structure can adopt the existing structure that is connected and fixed, such as sleeve pipe extruding connects and is fixedly connected with etc. with damper rod with upper end cap.
In the present embodiment, the cross section of described cylinder body is rectangle, the wherein relative both sides of rectangle consist of electromagnet 9, the 9a of strip plate structure respectively, as shown in the figure, the cross section of amortisseur bar 1 is also and the rectangular configuration of housing structure conformal, forms and is similar to sheet structure, not only reduces inertia, can also increase the vibration frequency under equal conditions, further improve the damping to dither; The polarity that forms wherein two blocks of electromagnet on relative both sides of rectangle relatively also can form the magnetic field of laterally running through amortisseur bar; Two blocks of electromagnet 9,9a adopt the mode of rectangle opposite side to arrange and polarity can make to form magnetic field between two blocks of electromagnet relatively, is beneficial to the magnetic field that forms stable and uniform, and, make the simple and compact for structure of cylinder body, simplify and make.
In the present embodiment, the other both sides of described cylinder body consist of stripe board 11,11a, and described stripe board 11,11a, upper end cap, lower end cap 5 and damper rod 2 are made by non-magnetic material, and simple and compact for structure, integrity is strong, has higher working efficiency; Described electromagnet 9,9a form the long limit of cylinder body rectangular cross section, can make full use of the effect of electromagnetic field, energy saving and control sensitive.
In the present embodiment, described upper end cap 7 is provided with the suspension hangers 8 as sprung parts, damper rod 2 is slidably matched by self-lubricating plain bearing 6 and lower end cap 5, there is self lubricity, maximum limit the kinetic friction that reduces damper rod, guarantee that the to-and-fro motion of damper rod 2 is comparatively smooth and easy, guarantee the high sensitivity reaction to vibration, increase work efficiency, further increase damping; Described electromagnet 9,9a are that one side magnetic pole and magnetic pole 12,12a are positioned at its internal surface, and as shown in the figure, the electrode of each electromagnet is respectively four pairs, and correspondence is positioned at the internal surface of electromagnet, is beneficial to and reduces power and improve energy utilization rate.
In the present embodiment, the longitudinal cross-section of described damper rod 2 at least one direction is T shape structure, the wing plate of T shape structure is positioned at upper end and is fixedly connected on amortisseur bar 1 lower end, web and the lower end cap 5 of T shape structure are slidably matched, reduce the transverse dimension that damper rod 2 stretches out lower end cap, be beneficial to processing and coordinate, simultaneously, the wing plate of T shape structure is also for limiting its descending ultimate range, with the overall security of assurance device.
Fig. 4 is damped system structural representation of the present invention, as shown in the figure, the present invention utilizes the damped system of the described anti-external interference of suspension type MR damper assurance device, comprise platform 17, suspension and at least two suspension type MR damper, the present embodiment is two, be respectively suspension type MR damper a, a ', described platform 17 hangs on suspension by suspension type MR damper a, a ', and described suspension type MR damper makes platform keep balance when normality.
In the present embodiment, damped system also comprises:
Weighing transducer 14, for gathering the weight parameter that is placed in equipment on platform 17; Equipment is generally precision type instrument 16;
Vibration parameters pick-up transducers 13,13 ', for the vibration parameters of acquisition platform 17;
Central processing unit (CPU) 15, be used for receiving the weight parameter of equipment on vibration parameters pick-up transducers 13,13 ' vibration parameters and platform 17 and to the control circuit 4,4 ' of electromagnet, send control command according to dry vibration parameters numerical value and weight parameter, for the working state of damping adjusting bar 1; According to the Vibration Condition of platform 17 load bearing equipments be subject to heavy situation to adjust the magnetic intensity of electromagnet 9,9a, can be pointed carry out damping and adjust load.
In the present embodiment, described suspension comprises support 15, the 15a of two opposition, at least two suspension type MR damper are uniformly distributed and hang on two supports 15,15a, and the present embodiment is that two suspension type MR damper a, a ' correspondences hang on two supports 15,15a; Platform is connected in suspension type MR damper a, a ' lower end; If platform is larger, adopt four suspension type MR damper to adopt mode (the being generally four jiaos) suspension platform of balance.
As shown in the figure: the damper rod of two suspension type MR damper a, a ' connects and suspension platform 17, and precision type instrument 16 is positioned over platform 17, and the upper end cap of cylinder body hangs on corresponding support, electromagnet 9,9a are connected with control circuit 4 by connecting line 3; When precision type instrument 16 affects measuring accuracy due to extraneous dither, by adjusting (can by central processing unit (CPU) or according to the fixedly vibration of equipment and manual tune) control circuit 4 is to the electrode 12 of electromagnet 9,9a, the size of 12a output current, get final product the magnetic intensity of regulating magnet, thereby adjust the Young's modulus of amortisseur bar, thereby adjust damping force of the present invention, thereby the vibration that precision type instrument 16 is subject to obtains effective damping, and this damping need have difference according to the weight of instrument.
Finally explanation is, above embodiment is only unrestricted in order to technological scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technological scheme of the present invention, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (10)
1. a suspension type MR damper, it is characterized in that: comprise the amortisseur bar of being made by magnetorheological elastic material and act on amortisseur bar and the adjustable magnetic field of intensity, the hangable sprung parts in described amortisseur bar upper end, lower end is provided with the connected element that needs damping device for connecting.
2. suspension type MR damper according to claim 1, is characterized in that: also comprise that axially, along cylinder body setting up and down, described amortisseur bar is positioned at cylinder body, described magnetic field is produced by the electromagnet or the coil that are fixed on cylinder body.
3. suspension type MR damper according to claim 2, it is characterized in that: described cylinder body is provided with upper end cap and lower end cap, the damper rod of described connected element for stretching out lower end cap and be slidably matched with its single-degree-of-freedom vertically, upper end cap is fixed in described amortisseur bar upper end, and lower end is fixedly connected with the upper end of damper rod.
4. suspension type MR damper according to claim 3, it is characterized in that: the cross section of described cylinder body is rectangle, the wherein relative both sides of rectangle consist of the electromagnet of strip plate structure respectively, and the polarity that forms wherein two blocks of electromagnet on relative both sides of rectangle relatively also can form the magnetic field of laterally running through amortisseur bar; The cross section of amortisseur bar is also the rectangular configuration with housing structure conformal.
5. suspension type MR damper according to claim 4, is characterized in that: the other both sides of described cylinder body consist of stripe board, and described stripe board, upper end cap, lower end cap and damper rod are made by non-magnetic material; Described electromagnet forms the long limit of cylinder body rectangular cross section.
6. suspension type MR damper according to claim 5, is characterized in that: described upper end cap is provided with the suspension hangers as sprung parts, and damper rod is slidably matched by self-lubricating plain bearing and lower end cap; Described electromagnet is that one side magnetic pole and magnetic pole are positioned at its internal surface.
7. suspension type MR damper according to claim 6, it is characterized in that: the longitudinal cross-section of described at least one direction of damper rod is T shape structure, the wing plate of T shape structure is positioned at upper end and is fixedly connected on amortisseur bar lower end, and web and the lower end cap of T shape structure are slidably matched.
8. a damped system of utilizing the anti-external interference of suspension type MR damper assurance device described in the arbitrary claim of claim 1 to 7, it is characterized in that: platform, suspension and at least two suspension type MR damper, described platform hangs on suspension by suspension type MR damper, and described suspension type MR damper makes platform keep balance when normality.
9. damped system according to claim 8, is characterized in that: damped system also comprises:
Weighing transducer, for gathering the weight parameter that is placed in flat equipments on stage;
Vibration parameters pick-up transducers, for the vibration parameters of acquisition platform;
Central processing unit (CPU), for receive vibration parameters pick-up transducers vibration parameters peace equipments on stage weight parameter and according to dry vibration parameters numerical value and weight parameter, to the control circuit of electromagnet, send control command, for the working state of damping adjusting bar.
10. damped system according to claim 9, is characterized in that: described suspension comprises the support of two opposition, and at least two suspension type MR damper are uniformly distributed and hang on two supports, and platform is connected in suspension type MR damper lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310633515.0A CN103615492B (en) | 2013-11-29 | 2013-11-29 | Suspension type MR damper and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310633515.0A CN103615492B (en) | 2013-11-29 | 2013-11-29 | Suspension type MR damper and system |
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| CN103615492A true CN103615492A (en) | 2014-03-05 |
| CN103615492B CN103615492B (en) | 2016-05-18 |
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| CN201310633515.0A Expired - Fee Related CN103615492B (en) | 2013-11-29 | 2013-11-29 | Suspension type MR damper and system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108674256A (en) * | 2018-05-21 | 2018-10-19 | 梁可义 | A kind of support device of power contacts net |
| CN112877986A (en) * | 2021-01-07 | 2021-06-01 | 海信（山东）冰箱有限公司 | Washing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1932327A (en) * | 2005-07-20 | 2007-03-21 | 香港理工大学 | Magnetorheological damper and use thereof |
| JP2008523324A (en) * | 2004-12-11 | 2008-07-03 | ▲隔▼而固（青島）振動控制有限公司 | Attenuator |
| CN101251164A (en) * | 2008-04-17 | 2008-08-27 | 上海交通大学 | Magnetic rheology elastic body active-passive integrated damper based on extrusion type applied force |
| JP2009503378A (en) * | 2005-07-29 | 2009-01-29 | ザ チャイニーズ ユニバーシティー オブ ホンコン | Pressurized magnetorheological fluid damper |
| CN102606664A (en) * | 2011-12-26 | 2012-07-25 | 北京航空航天大学 | Self-adaptive air spring based on magnetorheological technology |
-
2013
- 2013-11-29 CN CN201310633515.0A patent/CN103615492B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008523324A (en) * | 2004-12-11 | 2008-07-03 | ▲隔▼而固（青島）振動控制有限公司 | Attenuator |
| CN1932327A (en) * | 2005-07-20 | 2007-03-21 | 香港理工大学 | Magnetorheological damper and use thereof |
| JP2009503378A (en) * | 2005-07-29 | 2009-01-29 | ザ チャイニーズ ユニバーシティー オブ ホンコン | Pressurized magnetorheological fluid damper |
| CN101251164A (en) * | 2008-04-17 | 2008-08-27 | 上海交通大学 | Magnetic rheology elastic body active-passive integrated damper based on extrusion type applied force |
| CN102606664A (en) * | 2011-12-26 | 2012-07-25 | 北京航空航天大学 | Self-adaptive air spring based on magnetorheological technology |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108674256A (en) * | 2018-05-21 | 2018-10-19 | 梁可义 | A kind of support device of power contacts net |
| CN108674256B (en) * | 2018-05-21 | 2021-08-10 | 国网上海市电力公司 | Support arrangement for electric power contact net |
| CN112877986A (en) * | 2021-01-07 | 2021-06-01 | 海信（山东）冰箱有限公司 | Washing machine |
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| CN103615492B (en) | 2016-05-18 |
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