CN105276076B - A kind of novel high-precision hybrid vibration isolation device - Google Patents
A kind of novel high-precision hybrid vibration isolation device Download PDFInfo
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- CN105276076B CN105276076B CN201510817171.8A CN201510817171A CN105276076B CN 105276076 B CN105276076 B CN 105276076B CN 201510817171 A CN201510817171 A CN 201510817171A CN 105276076 B CN105276076 B CN 105276076B
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Abstract
The invention provides a kind of novel high-precision hybrid vibration isolation device；Including installing plate, central dividing plate, bottom plate, air spring and MR damper, the installing plate is connected with central dividing plate by the MR damper, the central dividing plate is bolted to connection with air spring, and the bottom plate is fixedly connected with the air spring.Wherein described MR damper is used to isolate the low-frequency vibration signal from ground, in view of terrestrial signal source in practice may be propagated along multi-dimensional direction, 4 groups of MR dampers have the vibration isolation capability in six-freedom degree direction.The air spring and MR damper with the central dividing plate by rationally connecting, it is possible to achieve high-precision active and passive hybrid vibration isolation ability.The present invention uses the structure type of stack, and its is compact-sized, and the vibration isolation capability of multiple frees degree can be achieved, so that the present invention has practical, high reliability, advanced vibration isolation means are provided for high-precision equipment platform.
Description
Technical field
The present invention relates to a kind of novel high-precision hybrid vibration isolation device, in particular high-precision equipment platform provide it is advanced every
Shake means, and in particular to a kind of novel high-precision hybrid vibration isolation device.
Background technology
With production, Transport Machinery at a high speed, efficiently, high accuracy and automation development, the vibration source intensity in engineering is continuous
Increase, vibration and noise hazard become increasingly conspicuous.Vibration is not only to operator, precision instrumentation, machinery equipment, building structure band
To seriously endanger, while vibration and noise on human living environment and physical and mental health are brought harm and influenceed.
What is be most widely used in vibration control method is vibration isolation technique, and from the viewpoint of energy, vibration isolation is to change
Vibration source suppresses to vibrate, vibration isolation technique can substantially divide to reduce to the energy frequency spectrum structure of system incentive by the energy of frequency
For active Vibration Isolation and passive vibration isolation technology.
The advantage and disadvantage of passive vibration isolation technology are very prominent, and for sensitive instrumentation, its low frequency vibration isolation effect is bad, vibration isolation
Frequency band is narrow, poor anti jamming capability.
Active vibration isolation process is exactly using the active force needed for extra power generation vibration control or displacement etc..For low frequency
For vibration, active controller can be by controlling actuator output to effectively reduce the peak value vibrated by vibration isolator.It is especially suitable
For superlow frequency vibration isolating and high-precision vibration isolation.Main passive hybrid vibration isolation technology, the excellent of actively and passively anti-vibration performance can be taken into account
Point, that is, effective frequency range of passive vibration isolation is improved, ensure the stability of active vibration isolation again, under conditions of environment is relatively more severe, energy
Enough meet the anti-vibration performance requirement of precision instrument, add vibration isolation frequency band and ensure more preferable vibration isolating effect.
Because passive vibration isolation can not be effectively isolated to low frequency or ultralow frequency interference component, thus it is external mostly using master
Dynamic vibration isolation technique or the hybrid vibration isolation technology being combined using passive vibration isolation with active vibration isolation, especially to meet inertia type instrument school
The requirement of quasi- technology and a series of pneumatic and servo-controlled vibration isolation system of surging developed, the country have also carried out the research in terms of vibration isolation,
But passive vibration isolation is concentrated mainly on, the later of development is studied to active Vibration Isolation, achievement in research is also few, correlation theory,
Technology and isolation mounting all need further research and inquired into, especially in high-precision vibration isolation technique and relevant Issues of Basic Theory
Compare to remain with international most advanced level in terms of research and seriously limit China's precision equipment in larger gap, this situation
System, accurate measurement and the development of precision processing technology.So far, it yet there are no the hybrid vibration isolation device using the structure.
The content of the invention
The purpose of the present invention is overcome the deficiencies in the prior art, there is provided a kind of novel high-precision hybrid vibration isolation device.Utilize
Technical scheme provided by the invention, building for high-precision hybrid vibration isolation system can be carried out.
The present invention relates to a kind of novel high-precision hybrid vibration isolation device, using the structure type of stack, including installing plate
1st, central dividing plate 4, bottom plate 6, air spring 5 and MR damper 7, the installing plate 1 is with the central dividing plate 4 by described
MR damper 7 is connected, and the central dividing plate 4 is bolted to connection with the air spring 5, the bottom plate 6 and institute
State air spring 5 to be fixedly connected, the installing plate 1 is used to install vibration isolation object, and the bottom plate 6 is pacified as whole isolation mounting
Dress face, the air spring 5 are used to isolate the high-frequency vibration signal from ground, the air spring 5 and the magnetic current variable resistance
Buddhist nun's device 7 with the central dividing plate 4 by rationally connecting, it is possible to achieve high-precision active and passive hybrid vibration isolation ability.
Preferably, the MR damper 7 is four groups, and every group is formed by two MR dampers 7.
Preferably, the angle of the axial direction of described every group of two MR dampers 7 and the bottom plate 6 is in 45 degree.
Preferably, the upper surface of the air spring 5 is fixedly connected with the lower surface of the installing plate 1, the air bullet
The lower surface of spring 5 is fixedly connected with the upper surface of the bottom plate 6.
Preferably, the central dividing plate 4 is fixedly connected with the middle part bolt of the air spring 5.
Preferably, one end of the MR damper 7 and the hinge connection of mounting seat 2 being fixed on installing plate 1, it is another
The hinge connection of hinge eyes 3 held and be fixed on central dividing plate 4.
Preferably, the mounting seat 2 is arranged on the lower surface vertex of the installing plate 1.
Preferably, two hinge eyes 2, the hinge eyes 2 and the MR damper 7 are provided with the mounting seat 2
One end be connected.
Preferably, be equipped be hinged ring group at the angle of the upper surface of the central dividing plate 4 four, and with the magnetorheological damping
The other end connection of device 7, the be hinged ring group are made up of 2 hinge eyes 3.
Preferably, through hole is equipped with the hinge eyes 3, and two through holes are axially arranged in a mutually vertical manner.
Compared with prior art, the present invention solves the technology hardly possible of high-precision hybrid vibration isolation device design in the prior art
Point, using the structure type of stack, advanced vibration isolation means are provided for high-precision equipment platform.
Compared with prior art, the present invention has following beneficial effect：
(1) present invention can be greatly improved effective frequency range of passive vibration isolation, be ensured master again due to the form using hybrid vibration isolation
The stability of dynamic vibration isolation, under conditions of environment is relatively more severe, high-precision anti-vibration performance requirement is disclosure satisfy that, add vibration isolation frequency
Band and the more preferable vibration isolating effect of guarantee.
(2) the ingenious arrangement that the present invention passes through MR damper and air spring so that the present invention has energy consumption low, goes out
Power is big, and fast response time, simple in construction, damping force is inverse suitable adjustable, and can facilitate to control with microcomputer and combine, and quickly realizes high-precision
Vibration isolating effect the advantages that.
(3) axial direction of two dampers in every group of MR damper in four groups of MR dampers of the invention
Angle with the bottom plate is in 45 degree, in certain limit, it is possible to achieve vertical, transverse direction and the effective vibration isolation of horizontal direction, it is such a
In the case of, the present invention in the main damping vertical of air spring to vibrational energy, it is ensured that the subjects on installing plate are more
There can be less interference on individual free degree direction.
(4) present invention can effectively be decayed for the higher signal source of frequency, MR damper so that installation
Signal response ratio on plate after vibration isolation is more uniform consistent, is easy to carry out high-precision Related Experimental Study.
(5) when the present invention produces vibration for being encouraged when bottom plate by outside compared with sophisticated signal, MR damper wink
When apply controling power or change the dynamic characteristics of structure, decayed and the dynamic respons of control structure, air spring make to put down with rapid
The medium, high frequency vibration of platform and impact signal are effectively eliminated, and supporting system, MR damper effectively eliminate low
Frequently relatively large concentrfated load is born in, superlow frequency vibrating signal and remaining a small amount of high-frequency vibration signal, realization.
Brief description of the drawings
The detailed description made by reading with reference to the following drawings to non-limiting example, further feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the partial component structural representation of the present invention；
In figure：1 is installing plate, and 2 be mounting seat, and 3 be hinge eyes, and 4 be central dividing plate, and 5 be air spring, and 6 be bottom plate, 7
For damper.
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
As shown in Figure 1 and Figure 2, the present embodiment is related to a kind of novel high-precision hybrid vibration isolation device, using the structure of stack
Form, including installing plate 1, central dividing plate 4, bottom plate 6, air spring 5 and MR damper 7, the installing plate 1 with it is described in
Space bar 4 is connected by the MR damper 7, the central dividing plate 4 and the company of being bolted of air spring 5
Connect, the bottom plate 6 is fixedly connected with the air spring 5, and the installing plate 1 is used to install vibration isolation object, and the bottom plate 6 is used
Make whole isolation mounting mounting surface, the air spring 5 is used to isolate the high-frequency vibration signal from ground, the air spring
5 and the MR damper 7 by rationally being connected with the central dividing plate 4, it is possible to achieve it is high-precision it is active and passive mixing every
Shake ability.
Further, the MR damper 7 is four groups, and every group is formed by two MR dampers 7.
Further, the angle of the axial direction of described every group of two MR dampers 7 and the bottom plate 6 is in 45
Degree.
Further, the upper surface of the air spring 5 is fixedly connected with the lower surface of the installing plate 1, the air
The lower surface of spring 5 is fixedly connected with the upper surface of the bottom plate 6.
Further, the central dividing plate 4 is fixedly connected with the middle part bolt of the air spring 5.
Further, one end of the MR damper 7 and the hinge connection of mounting seat 2 being fixed on installing plate 1, separately
One end and the hinge connection of hinge eyes 3 being fixed on central dividing plate 4.
Further, the mounting seat 2 is arranged on the lower surface vertex of the installing plate 1.
Further, two hinge eyes 2, the hinge eyes 2 and the MR damper are provided with the mounting seat 2
7 one end is connected.
Further, be equipped be hinged ring group at the angle of the upper surface of the central dividing plate 4 four, and with the magnetic current variable resistance
The other end connection of Buddhist nun's device 7, the be hinged ring group are made up of 2 hinge eyes 3.
Further, through hole is equipped with the hinge eyes 3, and two through holes are axially arranged in a mutually vertical manner.
In use, being arranged on the upper surface of installing plate 1 by vibration isolation subjects, the bottom surface of bottom plate 6 produces installed in vibration source
Structure on.In practical work process, it is more complicated to carry out the signal of Natural vibration source, does not require nothing more than isolation such as pulse of the earth, machine
Operating, vehicle traveling, personnel walk about etc. caused by ground vibration, also require to effect caused by air conditioning air flow, sound, motor etc.
It can rapidly eliminate in the vibration of platform, for the higher signal source of frequency, can effectively be declined by air spring 5
Subtract, but the intrinsic frequency of air spring assembly can not be reduced unrestrictedly, for the higher signal source of frequency, MR damper
7 can effectively be decayed, it is contemplated that have 4 groups of MR dampers between central dividing plate 4 and installing plate 1 so that installing plate 1
On signal response ratio after vibration isolation it is more uniform consistent, be easy to carry out high-precision Related Experimental Study；
On the other hand, this arrangement can bear relatively large concentrfated load.When bottom plate 6 by outside compared with sophisticated signal
Excitation and when producing vibration, MR damper 7 instantaneously applies controling power or changes the dynamic characteristics of structure, with it is rapid decay with
The dynamic respons of control structure, and air spring 5 mainly makes the medium, high frequency vibration of platform and impact signal effectively be disappeared
Remove, and supporting system, MR damper 7 are then to effectively eliminate low frequency, superlow frequency vibrating signal and remaining a small amount of high frequency
Vibration signal.Hybrid vibration isolation device can be effectively isolated the vibration in whole frequency range.
More specifically, as shown in Fig. 2 the extraneous vibration transmitted from bottom plate 6 often has multiple directions.Four groups of the present invention
The axial direction of two dampers in every group of MR damper in MR damper is in 45 with the angle of the bottom plate
Degree, in certain limit, it is possible to achieve vertical, transverse direction and the effective vibration isolation of horizontal direction, in such cases, air spring 5 is main
Damping vertical to vibrational energy, it is ensured that the subjects on installing plate 1 can have less dry on multiple free degree directions
Disturb.
A kind of novel high-precision hybrid vibration isolation device provided by the invention can greatly improve effective frequency range of passive vibration isolation, again
Ensure the stability of active vibration isolation, under conditions of environment is relatively more severe, disclosure satisfy that high-precision anti-vibration performance requirement, add
Vibration isolation frequency band and ensure more preferable vibration isolating effect, have energy consumption low, contribute big, fast response time, simple in construction, damping force are against suitable
It is adjustable, and can facilitate to control with microcomputer and combine, quickly realize high-precision vibration isolating effect.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (8)
1. a kind of novel high-precision hybrid vibration isolation device, it is characterised in that including installing plate (1), central dividing plate (4), bottom plate
(6), air spring (5) and MR damper (7), the installing plate (1) pass through described magnetorheological with the central dividing plate (4)
Damper (7) connects, and the central dividing plate (4) is bolted to connection with the air spring (5), the bottom plate (6) and
The air spring (5) is fixedly connected；
The MR damper (7) is four groups, and every group is formed by two MR dampers (7)；
The axial direction of described every group of two MR dampers (7) is in 45 degree with the angle of the bottom plate (6).
2. novel high-precision hybrid vibration isolation device according to claim 1, it is characterised in that the air spring (5)
Upper surface is fixedly connected with the lower surface of the installing plate (1), lower surface and the bottom plate (6) of the air spring (5)
Upper surface is fixedly connected.
3. novel high-precision hybrid vibration isolation device according to claim 1, it is characterised in that the central dividing plate (4) with
The middle part bolt of the air spring (5) is fixedly connected.
4. novel high-precision hybrid vibration isolation device according to claim 1, it is characterised in that the MR damper
(7) one end and mounting seat (2) hinge connection being fixed on installing plate (1), the other end is with being fixed on central dividing plate (4)
Hinge eyes (3) hinge connection.
5. novel high-precision hybrid vibration isolation device according to claim 4, it is characterised in that the mounting seat (2) is set
In the lower surface vertex of the installing plate (1).
6. novel high-precision hybrid vibration isolation device according to claim 4, it is characterised in that set on the mounting seat (2)
It is equipped with two hinge eyes, the hinge eyes on the mounting seat (2) are connected with one end of the MR damper (7).
7. novel high-precision hybrid vibration isolation device according to claim 1, it is characterised in that the central dividing plate (4)
Be hinged ring group is equipped with the angle of upper surface four, and is connected with the other end of the MR damper (7), the be hinged ring group
It is made up of 2 hinge eyes (3).
8. novel high-precision hybrid vibration isolation device according to claim 4, it is characterised in that on the hinge eyes (3)
Provided with through hole, and two through holes are axially arranged in a mutually vertical manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510817171.8A CN105276076B (en) | 2015-11-20 | 2015-11-20 | A kind of novel high-precision hybrid vibration isolation device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510817171.8A CN105276076B (en) | 2015-11-20 | 2015-11-20 | A kind of novel high-precision hybrid vibration isolation device |
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| CN105276076A CN105276076A (en) | 2016-01-27 |
| CN105276076B true CN105276076B (en) | 2017-12-08 |
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| CN106477074B (en) * | 2016-11-29 | 2019-07-12 | 上海卫星装备研究所 | A kind of in-orbit super quiet weightlessness simulation experiment system of novel spacecraft |
| KR101888762B1 (en) * | 2016-11-30 | 2018-08-16 | 한국생산기술연구원 | Equipment for vibration isolation |
| CN106596016B (en) * | 2016-12-07 | 2019-03-29 | 上海卫星装备研究所 | The super quiet environment simulation test system of spacecraft |
| CN108036018A (en) * | 2017-12-06 | 2018-05-15 | 吉林大学 | Tandem six degree of freedom air suspension vibration-isolating platform |
| CN108974382B (en) * | 2018-09-11 | 2023-09-12 | 长春工业大学 | Two-stage vibration isolation holder based on magnetorheological |
| CN109083974B (en) * | 2018-11-06 | 2020-05-22 | 河海大学 | Intelligent frequency modulation shock-proof device for liquid storage tank |
| CN111365406B (en) * | 2020-03-09 | 2021-07-30 | 江苏徐工工程机械研究院有限公司 | Multi-degree-of-freedom multi-stage vibration damper and engineering machinery |
| CN114251410B (en) * | 2021-11-18 | 2023-10-20 | 上海航天控制技术研究所 | Semi-active vibration reduction platform structure of inertial actuating mechanism based on magneto-rheological damper |
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| US6354576B1 (en) * | 1999-10-22 | 2002-03-12 | Honeywell International Inc. | Hybrid passive and active vibration isolator architecture |
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|---|---|---|---|---|
| US6354576B1 (en) * | 1999-10-22 | 2002-03-12 | Honeywell International Inc. | Hybrid passive and active vibration isolator architecture |
| CN2898434Y (en) * | 2006-04-30 | 2007-05-09 | 九江学院 | Rubber air spring with magnetic rheological elastomer |
| CN101559396A (en) * | 2009-05-15 | 2009-10-21 | 江苏大学 | Triaxial vibration-decreasing/vibration-isolating platform of hammer crusher |
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