CN106402263A - Electromagnetic force relaxation type static platform - Google Patents
Electromagnetic force relaxation type static platform Download PDFInfo
- Publication number
- CN106402263A CN106402263A CN201611075544.XA CN201611075544A CN106402263A CN 106402263 A CN106402263 A CN 106402263A CN 201611075544 A CN201611075544 A CN 201611075544A CN 106402263 A CN106402263 A CN 106402263A
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- Prior art keywords
- electromagnetic force
- vibration source
- link
- quiet
- platform
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/03—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using magnetic or electromagnetic means
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention provides an electromagnetic force relaxation type static platform, and belongs to the technical field of static platforms. The electromagnetic force relaxation type static platform comprises a static unit, a vibration source, four electromagnetic force actuators 1 and four electromagnetic force actuators 2; the static unit is arranged at the upper part of the vibration source; and the four electromagnetic force actuators 1 and the four electromagnetic force actuators 2 are connected between the static unit and the vibration source. The electromagnetic force relaxation type static platform overcomes the defects in the prior art; the researched static platform adopts a relaxation method; and the method is used for designing the static platform to achieve a higher isolation degree. Compared with a method for vibration isolation by a restrain method, the relaxation method can greatly improve the isolation degree. Specifically, the restrain method can at most achieve the isolation degree of 20 dB in the frequency range of above 1 Hz according to traditional technical process level. Compared with the prior art, the static platform adopting the relaxation method can enable the vibration isolation degree of an isolation system to be higher than 40 dB in the range of 1-10 Hz and to be higher than 60 dB in the range of above 10 Hz.
Description
Technical field
The formula ultra quiet platform the present invention relates to a kind of electromagnetic force relaxes, belongs to ultra quiet platform technical field.
Background technology
The micro-vibration shielding system proposing both at home and abroad at present is generally based on leash law, and the method for proposition has passive type and master
Dynamic formula, is substantially constraint formula from topology.For example：Load is pacified by the antivibrator with certain rigidity and damping characteristic
It is attached on the structure needing vibration isolation, this method is exactly to constrain formula.Typical ultra quiet platform adopts six degree of freedom Stewart to put down
Platform, Stewart platform is to be proposed by German scholar Stewart the sixties in 20th century, this method can a certain degree of every
From vibration, but, antivibrator also transmits a part vibration while lowering vibration.So, leash law isolation effect is undesirable,
The occasion adaptability that high-isolation is required is bad.
Content of the invention
The invention aims to solving the problems, such as above-mentioned prior art, and then provide a kind of electromagnetic force lax formula
Ultra quiet platform.
The purpose of the present invention is achieved through the following technical solutions：
A kind of electromagnetic force relaxes formula ultra quiet platform, including：Quiet unit, vibration source, four electromagnetic force executors one and four
Individual electromagnetic force executor two, described peace and quiet unit are arranged on the top of vibration source, are connected with four between quiet unit and vibration source
Individual electromagnetic force executor one and four electromagnetic force executors two.
Beneficial effects of the present invention：
Instant invention overcomes shortcoming of the prior art, the ultra quiet platform of research adopts method of relaxation, using the method design
Ultra quiet platform can reach high isolation.
The present invention, for the method using leash law vibration isolation, can greatly improve isolation.Specifically, utilize
Leash law, according to current technology technological level, is at best able to reach the isolation of 20dB in the range of 1Hz frequencies above.With
Prior art is compared, and the present invention adopts the ultra quiet platform of method of relaxation so that the isolating technique degree of shielding system is in 1-10Hz model
Enclose interior isolation and be better than 40dB, more than 10Hz is better than 60dB.
The ultra quiet platform of the present invention can apply to multiple fields, for example：The isolation of spacecraft vibration source, endoatmosphere
Aircraft interior high-precision sensor or the isolation of image capture device vibration source, the internal high-precision sensor vibration source in naval vessel every
From the fixing high-acruracy survey in, ground or the isolation of image capture device vibration source etc..
Brief description
Fig. 1 is the external structure schematic diagram of the lax formula ultra quiet platform of electromagnetic force of the present invention.
Fig. 2 is the overlooking the structure diagram of the lax formula ultra quiet platform of electromagnetic force of the present invention.
Fig. 3 is the structural representation of electromagnetic force executor 1 or electromagnetic force executor 24.
Fig. 4 is the part section structural representation of Fig. 3.
Fig. 5 is the A direction view of Fig. 3.
The reference of in figure, 1 is quiet unit, and 2 is vibration source, and 3 is electromagnetic force executor one, and 4 is electromagnetic force execution
Device two, 5 is link one, and 6 is Magnet, and 7 is bobbin, and 8 is link two, and 9 is connecting hole one, and 10 is connecting hole two, and 11 are
Position sensor, 12 is Magnet inside groove, and 13 is coil, and 14 is plane.
Specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail：The present embodiment with technical solution of the present invention is being
Under the premise of implemented, give detailed embodiment, but protection scope of the present invention be not limited to following embodiments.
As shown in Fig. 1～Fig. 5, a kind of lax formula ultra quiet platform of the electromagnetic force involved by the present embodiment, including：Quiet unit
1st, 2, four electromagnetic force executors 1 of vibration source and four electromagnetic force executors 24, described peace and quiet units 1 are arranged on vibration source 2
Top, be connected with four electromagnetic force executors 1 and four electromagnetic force executors 24 between quiet unit 1 and vibration source 2
(quiet unit 1 and vibration source 2 can be configured with any direction, can be on top it is also possible in bottom, acceptable one in the first from left
Individual on the right side, endoatmospheric can balance out gravity by power executor.When there is no gravity in space, just do not go up next and say
, can arbitrarily overturn.Do not limit quiet unit 1 and vibration source 2 which upper which under).
Described four electromagnetic force executors 1 are respectively perpendicular four sides being arranged between quiet unit 1 and vibration source 2
Center；Described four electromagnetic force executors 24 are horizontally placed on corresponding between quiet unit 1 and vibration source 2 two-by-two
On two sides.
Described electromagnetic force executor 1 or electromagnetic force executor 24 are by link 1, Magnet 6, bobbin 7, connection
Frame 28, position sensor 11 and coil 13 form, and described Magnet 6 is fixed on link 1, is provided with Magnet inside groove in Magnet 6
12, one end of link 1 is provided with plane 14, and one end of bobbin 7 is fixed on link 28, and the other end of bobbin 7 sets
Put in Magnet inside groove 12, the bobbin 7 in Magnet inside groove 12 is provided with coil 13, position sensor 11 is fixed on bobbin 7
On the link 28 of bottom, position sensor 11 is corresponding with the plane 14 on link 1, and link 28 is provided with connection
Hole 1, link 1 is provided with connecting hole 2 10.
Connecting hole 1 is used for for link 28 being fixed on vibration source 2, and connecting hole 2 10 is used for link 1 is fixing
On quiet unit 1.
The present embodiment, in order to isolate the micro-vibration of vibration source and quiet unit, employed technical scheme comprise that, first, make by every
From vibration source contactless with quiet unit, form relaxed state；Second, controlled using electromagnetic force and ensure vibration source and peace and quiet list
The relative position of unit；3rd, electromagnetic force executor does not transmit vibration, only produces controling power.Make vibration source by this method
Vibration does not affect quiet unit so that the degree of stability of quiet unit is greatly improved.
The vibration source of the present embodiment and quiet unit, this two parts is separate, contactless in structure.Both it
Between equipped with contactless signalling channel, contactless energy source pathway, contactless relative position sensor and contactless power are held
Row device.These designs ensure that payload platform, in addition to the controling power that stress executor provides, is not affected by any other external force.Power
The feature of executor is：First, controling power can be provided in high precision on an axial translation degree of freedom, and no with interference
Power；Second, allow certain displacement in axial translation degree of freedom direction, other two translation freedoms allow small position
Move.
Four electromagnetic force executors one and four electromagnetic force executors two, the full dimension for realizing six degree of freedom controls (three
Individual translational degree of freedom, three rotational freedoms).By combinatorial matrix, can be with independent control vibration source and quiet cellular construction portion
The relative position divided.
It is also equipped with contactless relative position sensor, this sensor is used for measuring between vibration source and quiet cellular construction
Vibration source and quiet unit relative position, are controlled with realizing vibration source and quiet unit relative position.Because the vibration of some fields
Relative position can be caused between source and quiet unit to change due to relative motion, vibration source and quiet unit relative position control
Purpose is so that both relative position is fixed, and that is to say vibration source and the pursuit movement of quiet unit.
The above, the only present invention preferably specific embodiment, these specific embodiments are all based on the present invention
Different implementations under general idea, and protection scope of the present invention is not limited thereto, any are familiar with the art
Technical staff the invention discloses technical scope in, the change or replacement that can readily occur in, all should cover the present invention's
Within protection domain.Therefore, protection scope of the present invention should be defined by the protection domain of claims.
Claims (3)
1. a kind of electromagnetic force relaxes formula ultra quiet platform it is characterised in that including：Quiet unit (1), vibration source (2), four electromagnetism
Power executor one (3) and four electromagnetic force executors two (4), described peace and quiet unit (1) are arranged on the top of vibration source (2), peace
It is connected with four electromagnetic force executors one (3) and four electromagnetic force executors two (4) between quiet unit (1) and vibration source (2).
2. electromagnetic force according to claim 1 relaxes formula ultra quiet platform it is characterised in that described four electromagnetic force executors
One (3) center being respectively perpendicular four sides being arranged between quiet unit (1) and vibration source (2)；Described four electromagnetism
Power executor two (4) is horizontally placed on corresponding two sides between quiet unit (1) and vibration source (2) two-by-two.
3. electromagnetic force according to claim 1 relaxes formula ultra quiet platform it is characterised in that described electromagnetic force executor one
Or electromagnetic force executor two (4) is by link one (5), Magnet (6), bobbin (7), link two (8), position sensing (3)
Device (11) and coil (13) composition, described Magnet (6) is fixed on link one (5), and Magnet is provided with Magnet inside groove in (6)
(12), one end of link one (5) is provided with plane (14), and one end of bobbin (7) is fixed on link two (8), bobbin
(7) the other end is arranged in Magnet inside groove (12), and the bobbin (7) in Magnet inside groove (12) is provided with coil (13), position
Sensor (11) is fixed on the link two (8) of bobbin (7) bottom, on position sensor (11) and link one (5)
Plane (14) is corresponding, and link two (8) is provided with connecting hole one (9), and link one (5) is provided with connecting hole two (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611075544.XA CN106402263A (en) | 2016-11-29 | 2016-11-29 | Electromagnetic force relaxation type static platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611075544.XA CN106402263A (en) | 2016-11-29 | 2016-11-29 | Electromagnetic force relaxation type static platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106402263A true CN106402263A (en) | 2017-02-15 |
Family
ID=58084490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611075544.XA Pending CN106402263A (en) | 2016-11-29 | 2016-11-29 | Electromagnetic force relaxation type static platform |
Country Status (1)
| Country | Link |
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| CN (1) | CN106402263A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155516A (en) * | 2011-01-24 | 2011-08-17 | 北京航空航天大学 | Eight-rod-redundant-configuration and six-degree-of-freedom active vibration control device |
| EP2546544A1 (en) * | 2005-04-06 | 2013-01-16 | BAE Systems PLC | Vibration isolation |
| CN104158431A (en) * | 2014-08-05 | 2014-11-19 | 中国空间技术研究院 | Electrostatic suspension type space-based super quiescent platform system |
| CN104163251A (en) * | 2014-08-06 | 2014-11-26 | 上海卫星工程研究所 | Eight-rod connecting type non-contact satellite platform load pose adjusting device and method |
| CN105035361A (en) * | 2015-07-31 | 2015-11-11 | 上海卫星工程研究所 | Satellite with ultrahigh pointing accuracy and ultrahigh stability under dynamic-static isolation and principal-subordinate cooperative control |
| CN105059568A (en) * | 2015-07-31 | 2015-11-18 | 上海卫星工程研究所 | Eight-rod six-degree-of-freedom satellite platform for ultra-precise ultra-stable satellites, and decoupling control method of eight-rod six-degree-of-freedom satellite platform |
-
2016
- 2016-11-29 CN CN201611075544.XA patent/CN106402263A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2546544A1 (en) * | 2005-04-06 | 2013-01-16 | BAE Systems PLC | Vibration isolation |
| CN102155516A (en) * | 2011-01-24 | 2011-08-17 | 北京航空航天大学 | Eight-rod-redundant-configuration and six-degree-of-freedom active vibration control device |
| CN104158431A (en) * | 2014-08-05 | 2014-11-19 | 中国空间技术研究院 | Electrostatic suspension type space-based super quiescent platform system |
| CN104163251A (en) * | 2014-08-06 | 2014-11-26 | 上海卫星工程研究所 | Eight-rod connecting type non-contact satellite platform load pose adjusting device and method |
| CN105035361A (en) * | 2015-07-31 | 2015-11-11 | 上海卫星工程研究所 | Satellite with ultrahigh pointing accuracy and ultrahigh stability under dynamic-static isolation and principal-subordinate cooperative control |
| CN105059568A (en) * | 2015-07-31 | 2015-11-18 | 上海卫星工程研究所 | Eight-rod six-degree-of-freedom satellite platform for ultra-precise ultra-stable satellites, and decoupling control method of eight-rod six-degree-of-freedom satellite platform |
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Application publication date: 20170215 |
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