CN207499161U - A kind of permanent magnet magnetic suspension shock isolating pedestal based on rod-type damper - Google Patents
A kind of permanent magnet magnetic suspension shock isolating pedestal based on rod-type damper Download PDFInfo
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- CN207499161U CN207499161U CN201721639156.XU CN201721639156U CN207499161U CN 207499161 U CN207499161 U CN 207499161U CN 201721639156 U CN201721639156 U CN 201721639156U CN 207499161 U CN207499161 U CN 207499161U
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- permanent magnet
- rod
- type damper
- upper strata
- magnetic suspension
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Abstract
A kind of permanent magnet magnetic suspension shock isolating pedestal based on rod-type damper, belong to technical field of isolation, the utility model is poor with self-resetting capability in order to solve traditional vibration-isolating system, deformation is apparent during big shake, impact is strong, anti-lateral displacement effect is poor, and the problem of larger is limited by other energy (such as electric energy).The bottom end of upper support platform is connected with upper strata permanent magnet, and upper strata permanent magnet and rod-type damper, which roll, to be connected, and the bottom end of rod-type damper is connected with lower floor permanent magnet, and lower floor's permanent magnet is on bottom resilient layer, and with upper strata permanent magnet homopolarity to just.A kind of permanent magnet magnetic suspension shock isolating pedestal suspending power based on rod-type damper of the utility model is big, and energy dissipation capacity is strong, and abrasion is small, and Self-resetting performance is good, using permanent magnetic device, without considering the dependence to other energy such as electric energy.
Description
Technical field
The utility model is related to a kind of shock isolating pedestals, and in particular to a kind of permanent magnet magnetic suspension based on rod-type damper every
Bearing is shaken, belongs to technical field of isolation.
Background technology
Seismic isolation technology is a kind of just gradually ripe Structural Control Technology under study for action, it superstructure with
Certain earthquake isolating equipment is set between infrastructure or bearing, superstructure with infrastructure or bearing is kept apart, is come with this
Earthquake energy avoids or reduces seismic energy and is transmitted to top, can more effectively ensure superstructure and internal staff,
The safety of equipment.Since constructions cost is low, reliability is high, principle is simple, easy to implement, isolating affection is good, subtract suitable for structure
Shake, particularly highlight lines area Important building and Bridge Seismic, are the widest technologies of engineering structure shockproof control practical application
One of.China has that more than 3000 house, bridge block applies seismic isolation technology more than 100 at present.
(electricity) magnetic suspension shock insulation is a kind of novel active shock isolation method, it is between focus and structure with actively control
The magnetic field of system supports so that Mechanical Contact is completely disengaged between focus and structure, achievees the purpose that isolation vibrations.Magnetic suspension
Seismic isolation technology has been used successfully in the fields such as space flight, navigation, railway transportation, wind power generation, but in civil engineering field there is not yet
With.
By the development of nearly 40 years, form with friction-pendulum shock-insulation, sliding friction shock insulation, laminated rubber shock insulation, ball and
Rolling isolation, (electricity) magnetic suspension etc. are the vibration-isolating system of representative.Although seismic isolation technology is easy to implement, isolating affection is good, at present
There are still some shortcomings, are mainly manifested in：(1) friction-pendulum shock-insulation system easily causes structure to add vibrations, and can not completely certainly
It is dynamic to reset；(2) sliding friction vibration-isolating system is not due to having self-resetting capability, in big shake there may be excessive displacement, and
Long inactivity is difficult to ensure that the friction coefficient of bearing；(3) laminated rubber vibration-isolating system can amplify long period ingredient in seismic wave,
" hard " impact of geological process is born under the conditions of configuration limiting device, and there is also ask for the performance steady in a long-term of its own material
Topic；(4) ball and rolling isolation system are a kind of ideal shock isolation systems, but structure can be generated during vibrations it is larger
Sidesway；(5) (electricity) magnetic suspension vibration-isolating system is affected to a certain extent by electric power resource, and is easily occurred in big shake
Situations such as power-off, leads to the generation of electromagnetic system race conditio.
To sum up, traditional vibration-isolating system has that self-resetting capability is poor, and deformation is apparent during big shake, impact is strong, anti-lateral displacement
Effect is poor, is limited the problems such as larger by other energy (such as electric energy), it would be highly desirable to solve.
Utility model content
The purpose of this utility model is to provide a kind of permanent magnet magnetic suspension shock isolating pedestal based on rod-type damper, to solve
Traditional vibration-isolating system has that self-resetting capability is poor, and deformation is apparent during big shake, impact is strong, and anti-lateral displacement effect is poor, by other energy
The problem of (such as electric energy) limitation is larger.
A kind of permanent magnet magnetic suspension shock isolating pedestal based on rod-type damper includes upper support platform, upper strata permanent magnetism
Body, lower floor's permanent magnet, rod-type damper and bottom resilient layer；
The bottom end of the upper support platform is connected with upper strata permanent magnet, and upper strata permanent magnet is rolled with rod-type damper to be connected
Connect, the bottom end of rod-type damper is connected with lower floor permanent magnet, and lower floor's permanent magnet is mounted on bottom resilient layer, and with it is upper
Layer permanent magnet homopolarity is to just；The top of the rod-type damper is equipped with rubber sheet gasket to limit the position of upper strata permanent magnet.
Preferably：Annular groove track is provided on the inner wall of the upper strata permanent magnet, is equipped with and rubs in annular groove track
Damping ball is wiped, upper strata permanent magnet is rolled by frictional damping ball and rod-type damper and connected.
Preferably：Lower floor's permanent magnet is filled circles disk type Nd body.
Preferably：The upper strata permanent magnet is circular ring type Nd-Fe-B permanent magnet.
Preferably：The quantity of the frictional damping ball is 8.
Preferably：The outer surface of the frictional damping ball is laid with the material layer and component layers of great friction coefficient.
Preferably：The upper strata permanent magnet and lower floor's permanent magnet are that maximum magnetic energy product is more than 10 and anti-oxidant and anticorrosive
Sintered Nd-Fe-B permanent magnet.
The utility model has the following effects that compared with existing product：
1. shock insulation ability is strong：Since upper and lower two layers of permanent magnet is using very big materials of magnetic energy products such as neodymium iron borons, can provide
Larger suspending power creates effective shock insulation sheaf space, upper platform is made not contacted with bottom support bracket, and isolating affection is good；
2. percussion is small：Damper top rubber pad both can touch damping during upper support platform shakes
Cushioning effect is generated during device, and is ensured during device teetertotters, upper strata permanent magnet is without departing from the limit of rod-type damper
System, while bottom rubber spacer also provides cushioning effect for whole device；
3. energy dissipation capacity is strong：The present apparatus use damping ball and the two-way energy consumption mechanism of damper, damping ball by with upper strata forever
The rubbing action of magnet and rod-type damper consumes energy, and damper is sent out when upper support platform falls on damper plane
The effect of waving starts to consume energy；
4. self-resetting capability is strong：Upper and lower layer permanent magnet interaction, bearing have self-resetting capability, break through conventional planar
The limitation that sliding system cannot automatically reset, meanwhile, the energy consumption of damping ball ensure that stablizing relatively between permanent magnet；
5. tensile property is good：Upper and lower layer magnet interacts so that bearing has enough tensile properties.
6. using permanent magnet earthquake isolating equipment in bearing, solve dependence of the existing electromagnetism shock isolating pedestal to electric power energy
Problem.
Description of the drawings
Fig. 1 is that a kind of structure of permanent magnet magnetic suspension shock isolating pedestal based on rod-type damper described in the utility model is shown
It is intended to；
Fig. 2 is the A-A sectional views of Fig. 1.
In figure：The upper support platforms of 1-, 2- upper stratas permanent magnet, 3- lower floors permanent magnet, 4- rod-types damper, 5- rubber sheet gaskets,
6- frictional dampings ball, 7- bottoms rubber spacer.
Specific embodiment
The utility model preferred embodiment is elaborated below according to attached drawing.
As depicted in figs. 1 and 2, a kind of permanent magnet magnetic suspension shock insulation branch based on rod-type damper described in the utility model
Seat includes upper support platform 1, upper strata permanent magnet 2, lower floor's permanent magnet 3, rod-type damper 4, rubber sheet gasket 5,6 and of frictional damping ball
Bottom rubber spacer 7；
The bottom end of the upper support platform 1 is connected with upper strata permanent magnet 2, and upper strata permanent magnet 2 passes through multiple frictional dampings
Ball 6 is sleeved on the outer wall of rod-type damper 4, and the bottom end of rod-type damper 4 is connected with lower floor permanent magnet 3, rod-type damper 4
Top is equipped with rubber sheet gasket 5 to limit the position of upper strata permanent magnet 2；Lower floor's permanent magnet 3 is mounted on bottom rubber spacer 7
On, and with 2 homopolarity of upper strata permanent magnet to just.
Further：Upper support platform 1 is overlapped by four cylinders and a platform, cylinder bottom end and upper strata permanent magnet 2
Upper surface be fixedly connected, lower floor's permanent magnet 3 is embedded on bottom rubber spacer 7, to increase forced area, upper strata permanent magnet 2
Stop to fall the upper half height in rod-type damper (4) by the interaction force between lower floor's permanent magnet (3).
Further：The upper strata permanent magnet 2 is the outer diameter of circular ring type Nd-Fe-B permanent magnet, internal diameter and rod-type damper 4
Match, can ring set on rod-type damper 4.
Further：Lower floor's permanent magnet 3 is filled circles disk type Nd body.
Further：Annular groove track is provided on the inner wall of the upper strata permanent magnet 2, frictional damping ball 6 is mounted on annular
In grooved tracks, upper strata permanent magnet 2 is rotatablely connected by frictional damping ball 6 and rod-type damper 4.
Further：The quantity of the frictional damping ball 6 is 8.
Further：The outer surface of the frictional damping ball 6 is laid with the material layer and component layers of great friction coefficient, spherical
According to susceptor design, the gravity of permanent magnet 2 and shock insulation frequency requirement are set the grain size of particle at the middle and upper levels, and material layer and component layers are excellent
It is selected as the polymer damping materials such as polyacrylate, polyurethane, epoxy resin, butyl rubber and nitrile rubber.
Further：The upper strata permanent magnet 2 and lower floor's permanent magnet 3 preferably use sintered NdFeB, SmCo or aluminium nickel cobalt material
Material, need to meet the maximum magnetic energy product condition good more than 10, anti-oxidant and corrosive nature, and size should meet the bearing bearing capacity upper limit
Requirement, magnetic pole homopolarity is opposite and puts.
Now the permanent magnet magnetic suspension shock isolating pedestal application method provided by the utility model based on rod-type damper is illustrated
It is as follows：
Permanent magnet magnetic suspension shock isolating pedestal provided by the utility model based on rod-type damper is mainly used for vertical earthquake isolating,
The stability that historical relic and fragile structures bottom improve structure by the way that earthquake motion is isolated is particularly applicable to protect, ensures interior items
Safety.When coming earthquake, which limited can experience seismaesthesia and shake, when vibrations direction is upward
When, lower floor's permanent magnet is moved upwards with rubber base plate, Distance Shortened between upper and lower layer permanent magnet, and magnetic force increase makes upper strata permanent magnet
The trend that related upper supporting platform generation moves upwards, at the same the frictional damping ball in the permanent magnet internal rail of upper strata by with magnet and
The friction energy-dissipating of rod-type damper outer surface, according to conservation of energy principle, the kinetic energy that the vibrations of permanent magnet damping shock isolating pedestal generate turns
The thermal energy for the generation that rubs between frictional damping ball and upper strata permanent magnet and rod-type damper is melted into, so as to make to pass in superstructure
Seismaesthesia die down, achieved the effect that subtract shock insulation；Damper top rubber bed course plays constraint upper strata permanent magnet at this time, ensures it
Without departing from the track that rod-type damper provides, slippage is avoided the occurrence of so that the phenomenon that magnetic pole is not opposite, and magnetic force is disorderly.Work as vibrations
When direction is downward, lower floor's permanent magnet is moved downward with rubber base plate, and distance widens between upper and lower layer permanent magnet, and magnetic force decrease is less than
Upper strata permanent magnet gravity, the trend for moving downward the related upper supporting platform generation of upper strata permanent magnet, at this time frictional damping ball according to
It is old to play the role of friction energy-dissipating, it when upper supporting platform drops to certain altitude, is contacted with rubber spacer, to rod-type damper
Power transmission plays the dual energy consumption effect of damper, makes isolating affection more obvious at this time；At this time rubber spacer play power transmission and
The effect of buffering.
Permanent magnet magnetic suspension shock isolating pedestal provided by the utility model based on rod-type damper, can be in parallel
With that is, in the case where a need protect structure, eyesight size sets multiple bearings simultaneously.
The vibrations illustrated in the utility model, vibrations reason are not merely limited to earthquake generation, can also be but unlimited
In the interaction of the natural external forces such as wind, external impacts or internal engineering structure.
Present embodiment is only to the exemplary description of this patent does not limit its scope of protection, people in the art
Member can also be changed its part, as long as it does not exceed the essence of this patent, within the protection scope of the present patent.
Claims (7)
1. a kind of permanent magnet magnetic suspension shock isolating pedestal based on rod-type damper, it is characterised in that：Including upper support platform (1),
Upper strata permanent magnet (2), lower floor's permanent magnet (3), rod-type damper (4) and bottom resilient layer (7)；
The bottom end of the upper support platform (1) is connected with upper strata permanent magnet (2), upper strata permanent magnet (2) and rod-type damper (4)
Connection is rolled, the bottom end of rod-type damper (4) is connected with lower floor's permanent magnet (3), and lower floor's permanent magnet (3) is mounted on bottom
On elastic layer (7), and with upper strata permanent magnet (2) homopolarity to just；The top of the rod-type damper (4) is equipped with rubber sheet gasket
(5) to limit the position of upper strata permanent magnet (2).
2. a kind of permanent magnet magnetic suspension shock isolating pedestal based on rod-type damper according to claim 1, it is characterised in that：
Annular groove track is provided on the inner wall of the upper strata permanent magnet (2), frictional damping ball (6) is installed in annular groove track,
Upper strata permanent magnet (2) is rolled by frictional damping ball (6) and rod-type damper (4) and connected.
3. a kind of permanent magnet magnetic suspension shock isolating pedestal based on rod-type damper according to claim 1, it is characterised in that：
Lower floor's permanent magnet (3) is filled circles disk type Nd body.
4. a kind of permanent magnet magnetic suspension shock isolating pedestal based on rod-type damper according to claim 1, it is characterised in that：
The upper strata permanent magnet (2) is circular ring type Nd-Fe-B permanent magnet.
5. a kind of permanent magnet magnetic suspension shock isolating pedestal based on rod-type damper according to claim 2, it is characterised in that：
The quantity of the frictional damping ball (6) is 8.
6. a kind of permanent magnet magnetic suspension shock isolating pedestal based on rod-type damper according to claim 2, it is characterised in that：
The outer surface of the frictional damping ball (6) is laid with the material layer and component layers of great friction coefficient.
7. a kind of permanent magnet magnetic suspension shock isolating pedestal based on rod-type damper according to claim 1, it is characterised in that：
The upper strata permanent magnet (2) and lower floor's permanent magnet (3) are that maximum magnetic energy product is more than 10 and anti-oxidant and erosion-resisting sintering neodymium
Iron boron permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721639156.XU CN207499161U (en) | 2017-11-30 | 2017-11-30 | A kind of permanent magnet magnetic suspension shock isolating pedestal based on rod-type damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721639156.XU CN207499161U (en) | 2017-11-30 | 2017-11-30 | A kind of permanent magnet magnetic suspension shock isolating pedestal based on rod-type damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207499161U true CN207499161U (en) | 2018-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721639156.XU Expired - Fee Related CN207499161U (en) | 2017-11-30 | 2017-11-30 | A kind of permanent magnet magnetic suspension shock isolating pedestal based on rod-type damper |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107816134A (en) * | 2017-11-30 | 2018-03-20 | 中国地震局工程力学研究所 | A kind of permanent magnet magnetic suspension shock isolating pedestal based on rod-type damper |
-
2017
- 2017-11-30 CN CN201721639156.XU patent/CN207499161U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107816134A (en) * | 2017-11-30 | 2018-03-20 | 中国地震局工程力学研究所 | A kind of permanent magnet magnetic suspension shock isolating pedestal based on rod-type damper |
| CN107816134B (en) * | 2017-11-30 | 2024-03-08 | 中国地震局工程力学研究所 | Permanent magnet magnetic suspension shock insulation support based on rod-type damper |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180615 Termination date: 20211130 |
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| CF01 | Termination of patent right due to non-payment of annual fee |