CN109537970A - A kind of permanent magnet suspension earthquake isolating equipment - Google Patents
A kind of permanent magnet suspension earthquake isolating equipment Download PDFInfo
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- CN109537970A CN109537970A CN201811509629.3A CN201811509629A CN109537970A CN 109537970 A CN109537970 A CN 109537970A CN 201811509629 A CN201811509629 A CN 201811509629A CN 109537970 A CN109537970 A CN 109537970A
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- plate
- upper bed
- group unit
- bottom base
- lower bottom
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- 239000000725 suspension Substances 0.000 title claims abstract description 34
- 230000005389 magnetism Effects 0.000 claims abstract description 62
- 238000009413 insulation Methods 0.000 claims abstract description 28
- 230000035939 shock Effects 0.000 claims abstract description 27
- 230000003993 interaction Effects 0.000 claims abstract description 10
- 238000005339 levitation Methods 0.000 claims abstract description 9
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 230000005484 gravity Effects 0.000 claims description 7
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 7
- 239000011810 insulating material Substances 0.000 claims description 4
- 230000006698 induction Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 11
- 238000002955 isolation Methods 0.000 description 6
- 229910000838 Al alloy Inorganic materials 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
Abstract
The present invention provides a kind of permanent magnet suspension earthquake isolating equipment, including shock insulation main body, upper bed-plate and lower bottom base；Shock insulation main body is fixedly connected with the upper surface of upper bed-plate；The lower end surface of upper bed-plate is provided with upper bed-plate permanent magnetism group unit；The upper surface of lower bottom base is provided with lower bottom base permanent magnetism group unit；Upper bed-plate permanent magnetism group unit and lower bottom base permanent magnetism group unit opposite magnetic pole each other；Upper bed-plate permanent magnetism group unit and lower bottom base permanent magnetism group unit are oppositely arranged；Levitation gap is formed by upper bed-plate permanent magnetism group unit and the interaction of lower bottom base permanent magnetism group unit between upper bed-plate and lower bottom base；Permanent magnet suspension earthquake isolating equipment isolating affection provided by the invention is better than conventional earthquake isolating equipment, can be realized simultaneously the requirement of the shock insulation of horizontal direction and vertical direction, has the advantage that structure is simple, is easy for installation and removal.
Description
Technical field
The invention belongs to architectural vibration-insulation technical fields, and in particular to a kind of permanent magnet suspension earthquake isolating equipment.
Background technique
China belongs to earthquake and takes place frequently country, and in recent years in succession in Wenchuan and Yaan earthquake occurrence, earthquake is caused largely
Casualties and huge property loss, even if part building has reached the design object of Aseismic Design " no collapsing with strong earthquake ", but
Since filling wall and finishing time structural damage are thrown away and cause casualties；Therefore, suggestion popularization is repeatedly mentioned in government aspect to subtract
Seismic isolation technology, improve structure anti-seismic performance ensure human life safety, part design intensity higher area for Important building
It forces to have greatly facilitated the development of China's seismic isolation technology using seismic isolation technology is subtracted.
Currently, building structure, industrial building field frequently with earthquake isolating equipment have rubber support, friction pendulum support, elasticity
Sliding bearing etc., such earthquake isolating equipment has relative to conventional structure modular level rigidity significantly to be reduced, and can effectively play water
Flat function of shock insulation reduces horizontal earthquake response；But it has the disadvantage that
Although first, horizontal rigidity has compared to non-isolation structure and is greatly lowered, in some special dimensions, to isolating affection
It is required that it is high, at this point, being unable to reach using such device；
The second, such device mainly solves the problems, such as horizontal seismic isolation, to Vertical Earthquake Loads without isolating affection.
Therefore, it when having vertical earthquake isolating demand at the same time, can not solve simultaneously.
Magnetic levitation technology is collection electromagnetism, an electronic technology, control theory, the emerging intellectual technology of signal processing；It adopts
Carry out vibration control with magnetic levitation technology and refer to that vibration source and managed object are detached from Mechanical Contact using suspending power, thus reach every
The purpose of shake；According to magnetic field source, magnetic levitation technology can be divided into electromagnetic suspension, permanent magnet suspension and Hybrid suspension of electromagnets and permanent magnets etc. three
Kind；Since electromagnetic suspension can adjust magnetic force by electric current, feasibility is provided to active control, therefore main research at this stage
Concentrate on electromagnetic suspension；But under some specific conditions, unpowered may or be powered under special operation condition and not can guarantee, at this point,
Permanent magnet suspension is a safe feasible selection.
Based on technical problem present in above-mentioned suspension earthquake isolating equipment, there has been no relevant solutions；Therefore compel to be essential
Seek effective scheme to solve the above problems.
Summary of the invention
The purpose of the present invention is shortcomings present in view of the above technology, propose a kind of permanent magnet suspension earthquake isolating equipment,
Aiming to solve the problem that existing earthquake isolating equipment, structure is complicated, cannot be considered in terms of the problem of horizontal and vertical direction shock insulation.
The present invention provides a kind of permanent magnet suspension earthquake isolating equipment, including shock insulation main body, upper bed-plate and lower bottom base；Shock insulation main body
It is fixedly connected with the upper surface of upper bed-plate；The lower end surface of upper bed-plate is provided with upper bed-plate permanent magnetism group unit；The upper surface of lower bottom base
It is provided with lower bottom base permanent magnetism group unit；Upper bed-plate permanent magnetism group unit and lower bottom base permanent magnetism group unit opposite magnetic pole each other；Upper bed-plate
Permanent magnetism group unit and lower bottom base permanent magnetism group unit are oppositely arranged；Between upper bed-plate and lower bottom base by upper bed-plate permanent magnetism group unit and
Lower bottom base permanent magnetism group unit interacts and forms levitation gap.
Further, the area of upper bed-plate lower end surface be less than lower bottom base upper surface area so that upper bed-plate lower end surface and
Lower bottom base upper surface reserves earthquake displacement in the horizontal direction.
It further, further include having dust-proof leak-proof magnetic cover；Upper bed-plate and lower bottom base are cylindrical base；Dust-proof leak-proof magnetic
The enclosure is arranged between upper and lower pedestal, and avoiding magnetic induction line from leaking out influences shock insulation main body.
Further, upper and lower pedestal is made of insulating materials (such as concrete)；Round cylinder slot is equipped in upper bed-plate；Upper bottom
Seat permanent magnetism group unit includes ndfeb magnet；Ndfeb magnet is set in round cylinder slot.
Further, between upper bed-plate permanent magnetism group unit and lower bottom base permanent magnetism group unit maximum force be greater than upper bed-plate and
The gravity of shock insulation main body.
Further, upper bed-plate permanent magnetism group unit and lower bottom base permanent magnetism group unit include multiple, densely covered and pedestal；Upper bottom
Maximum repulsive force between seat permanent magnetism group unit and lower bottom base permanent magnetism group unit is greater than the sum of upper bed-plate and the gravity of shock insulation main body.
It further, further include having magnetic field baffle；Magnetic field baffle plate setting is in the side of upper bed-plate.
Permanent magnet suspension earthquake isolating equipment provided by the invention forms repulsive interaction by using permanent magnet unit opposing upper and lower, when
Repulsive interaction keeps standing balance, to realize suspension after reaching the gravity of device superstructure after distance is less than target range；
After suspension, the interaction of permanent magnet unit is big in horizontally equivalent stiffness and the relatively conventional connection of vertical equivalent stiffness
Amplitude reduction, horizontal equivalent stiffness ratio are also reduced significantly using conventional earthquake isolating equipment, are reached to horizontal earthquake and are erected
To shock insulation while earthquake.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Below with reference to attached drawing, the invention will be further described:
Fig. 1 is a kind of permanent magnet suspension earthquake isolating equipment structural schematic diagram of the present invention；
Fig. 2 is the part Fig. 1 A enlarged diagram；
Fig. 3 is pedestal permanent magnet group arrangement schematic diagram of the present invention；
Fig. 4 is magnet structure schematic diagram of the present invention.
In figure: 1, shock insulation main body；2, upper bed-plate；3, dust-proof leak-proof magnetic cover；4, earthquake displacement；5, lower bottom base；6, upper bed-plate
Permanent magnetism group unit；7, lower bottom base permanent magnetism group unit；8, concrete；9, ndfeb magnet；10, levitation gap；11, magnetic field baffle；
12, aluminium alloy plate；13, round cylinder slot.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1 to Figure 3, the present invention provides a kind of permanent magnet suspension earthquake isolating equipment, is applied to industrial building, civilian or bridge
In beam design；Earthquake isolating equipment includes shock insulation main body 1, upper bed-plate 2 and lower bottom base 5；The upper surface of shock insulation main body 1 and upper bed-plate 2
It is fixedly connected；The lower end surface of upper bed-plate 2 is provided with upper bed-plate permanent magnetism group unit 6；The upper surface of lower bottom base 5 is provided with lower bottom base forever
Magnetic group unit 7；Upper bed-plate permanent magnetism group unit 6 and lower bottom base permanent magnetism group unit 7 opposite magnetic pole each other, upper bed-plate permanent magnetism group unit 6
It is oppositely arranged with lower bottom base permanent magnetism group unit 7, for forming repulsive force between upper bed-plate 2 and lower bottom base 5；Upper bed-plate 2 and bottom
Levitation gap 10 is formed by upper bed-plate permanent magnetism group unit 6 and the interaction of lower bottom base permanent magnetism group unit 7 between seat 5；Upper bottom
Seat permanent magnetism group unit 6 and lower bottom base permanent magnetism group unit 7 include permanent magnet, permanent magnet quantity and size according to shock insulation main body and
The weight of upper bed-plate, which calculates, to be determined, to ensure to be in suspended state between upper bed-plate 2 and lower bottom base 5；To ensure upper bed-plate forever
The repulsive force of magnetic group unit 6 and lower bottom base permanent magnetism group unit 7 reaches the total weight of shock insulation main body and upper bed-plate, and permanent magnet is as far as possible
It gathers on entire upper bed-plate or lower bottom base；Earthquake isolating equipment structure can be simplified using the above scheme, combine earthquake isolating equipment
Horizontal and vertical direction shock insulation.
Preferably, in conjunction with above scheme, as shown in Figure 1 to Figure 3, in the present embodiment, the area of 2 lower end surface of upper bed-plate is less than
The area of 5 upper surface of lower bottom base, such upper bed-plate 2 can vibration isolation in the range of lower bottom base 5 so that 2 lower end surface of upper bed-plate and
5 upper surface of lower bottom base reserves earthquake displacement 4 in the horizontal direction；Specifically, the top setting of lower bottom base 5 is set with upper bed-plate bottom
Set it is identical, unlike lower bottom base upper surface planar dimension need be greater than upper bed-plate lower end surface, earthquake can be reserved in this way
Displacement, it is ensured that upper bed-plate projection is still inside lower bottom base after relative displacement occurs for upper bed-plate and lower bottom base under geological process, under making
Pedestal still has the permanent magnet group of identical quantity is corresponding with upper bed-plate to generate comparable repulsive interaction；Further, 2 two sides of upper bed-plate are set
There is magnetic field baffle 11, can be avoided lower bottom base 5 in this way and have more the permanent magnet unit in 2 region of upper bed-plate to the generation horizontal row of upper bed-plate 2
Repulsion.
It preferably, further include having dust-proof leak-proof magnetic cover 3 in the present embodiment as shown in Figure 1 to Figure 3 in conjunction with above scheme；
Upper bed-plate 2 and lower bottom base 5 are cylindrical base；Dust-proof leak-proof magnetic cover 3 is sheathed on upper bed-plate 2 or lower bottom base 5, and is located at ground
At shake displacement 4, for covering earthquake displacement 4 and levitation gap 10, avoid pollution.
Preferably, in conjunction with above scheme, as shown in Figure 1 to Figure 3, in the present embodiment, upper bed-plate 2 uses insulating materials system
Make, and there is bearing capacity；Insulating materials is concrete eight；Round cylinder slot 13 is equipped in upper bed-plate 2；Upper bed-plate permanent magnetism group unit 6 wraps
Ndfeb magnet 9 is included；Ndfeb magnet 9 is embedded to be set in round cylinder slot 13, and replacement is maintained easily.
Preferably, in conjunction with above scheme, as shown in Figure 1 to Figure 3, in the present embodiment, upper bed-plate permanent magnetism group unit 6 and bottom
Seat permanent magnetism group unit 7 is cylindric；Upper bed-plate permanent magnetism group unit 6 is embedded in upper bed-plate 2, and penetrates aluminium alloy plate 12 and aluminium
Alloy sheets 12 are concordant；Lower bottom base permanent magnetism group unit 7 is embedded in lower bottom base 5, and penetrates aluminium alloy plate 12 and aluminium alloy plate 12 is flat
Together；It is convenient to structure installation using the above scheme, and upper bed-plate and lower bottom base coplanar flat is effectively ensured.
Further, the quantity of upper bed-plate permanent magnetism group unit 6 and lower bottom base permanent magnetism group unit 7 includes multiple, Duo Geshang
Pedestal permanent magnetism group unit 6 and multiple lower bottom base permanent magnetism group units 7 gather respectively to be set on upper bed-plate and the opposite face of lower bottom base,
And the repulsive force between upper bed-plate permanent magnetism group unit 6 and lower bottom base permanent magnetism group unit 7 is greater than upper bed-plate 2 and shock insulation main body 1
The sum of gravity；Specifically, the calculating of the amount of force between upper bed-plate permanent magnetism group unit and lower bottom base permanent magnetism group unit, can be with
It is generalized to other occasions；If two blocks of parallel six areas magnet being placed in parallel, the active force between two pieces of magnets can be by giving below
Formula out calculates:
Wherein m1, m2The magnetic flux of two magnetic poles, unit weber, d are two pole pitch；Above-mentioned formula illustrate magnetic force size and
The distance of magnetic pole square is inversely proportional.
When two pieces between magnet be in zero-play condition under maximum repulsive force and attraction are as follows:
Wherein, BgFor the intensity of magnetization of permanent magnet；AgFor the magnetic pole area of permanent magnet, as shown in figure 4, Ag=a × b；
According to above formula, magnet size type design is carried out, it is ensured that any position within the scope of expected sidesway, total repulsive force
Greater than the total weight of top upper bed-plate and shock insulation main structure, Up/down base is made to keep gap, is in suspended state.
Superstructure in suspended state, when substrate shakes because of earthquake, since superstructure and substrate suspend
It disengages, vertical equivalent stiffness and horizontal equivalent stiffness are greatly lowered (significantly lower than conventional earthquake isolating equipment), thus real
Now isolating affection more better than conventional earthquake isolating equipment.
Permanent magnet suspension earthquake isolating equipment provided by the invention forms repulsive interaction by using permanent magnet unit opposing upper and lower, when
Repulsive interaction keeps standing balance, to realize suspension after reaching the gravity of device superstructure after distance is less than target range；
After suspension, the interaction of permanent magnet unit is big in horizontally equivalent stiffness and the relatively conventional connection of vertical equivalent stiffness
Amplitude reduction, horizontal equivalent stiffness ratio are also reduced significantly using conventional earthquake isolating equipment, are reached to horizontal earthquake and are erected
To shock insulation while earthquake.
Using the above scheme, so that the invention has the characteristics that and the utility model has the advantages that
The first, permanent magnet suspension earthquake isolating equipment isolating affection provided by the invention is better than conventional earthquake isolating equipment, for there is special shock insulation
It is required that the structure or device of (dampening factor is less than 1/10), equally may be implemented；
The second, permanent magnet suspension earthquake isolating equipment provided by the invention is different from electromagnetic suspension and needs power supply unit, for some special
When device is unable to ensure stable power-supplying, permanent magnet suspension has absolute predominance；It is simple with structure, be easy to install and maintain it is excellent
Gesture；
Third, permanent magnet suspension earthquake isolating equipment provided by the invention can be realized simultaneously wanting for the shock insulation of horizontal direction and vertical direction
It asks, is applicable to various occasions.
The above, only presently preferred embodiments of the present invention not do limitation in any form to the present invention.It is any ripe
Those skilled in the art is known, without departing from the scope of the technical proposal of the invention, all using technology contents described above
Many possible changes and modifications or equivalent example modified to equivalent change are made to technical solution of the present invention.Therefore, all
It is the content without departing from technical solution of the present invention, any change modification made to the above embodiment of technology according to the present invention,
Equivalent variations and modification belong to the protection scope of the technical program.
Claims (7)
1. a kind of permanent magnet suspension earthquake isolating equipment, which is characterized in that including shock insulation main body, upper bed-plate and lower bottom base；The shock insulation
Main body is fixedly connected with the upper surface of the upper bed-plate；The lower end surface of the upper bed-plate is provided with upper bed-plate permanent magnetism group unit；Institute
The upper surface for stating lower bottom base is provided with lower bottom base permanent magnetism group unit；The upper bed-plate permanent magnetism group unit and the lower bottom base permanent magnetism group
Unit opposite magnetic pole each other；The upper bed-plate permanent magnetism group unit and the lower bottom base permanent magnetism group unit are oppositely arranged；The upper bottom
Pass through the upper bed-plate permanent magnetism group unit and lower bottom base permanent magnetism group unit interaction shape between seat and the lower bottom base
At levitation gap.
2. permanent magnet suspension earthquake isolating equipment according to claim 1, which is characterized in that the area of the upper bed-plate lower end surface is small
Area in the lower bottom base upper surface, so that the upper bed-plate lower end surface and the lower bottom base upper surface are reserved in the horizontal direction
Earthquake displacement out.
3. permanent magnet suspension earthquake isolating equipment according to claim 2, which is characterized in that further include having dust-proof leak-proof magnetic cover；Institute
Stating upper bed-plate and the lower bottom base is cylindrical base；The dust-proof leak-proof magnetic enclosure be set to the upper bed-plate and lower bottom base it
Between, avoiding magnetic induction line from leaking out influences shock insulation main body.
4. permanent magnet suspension earthquake isolating equipment according to claim 1, which is characterized in that the upper bed-plate uses insulating materials system
At；Round cylinder slot is equipped in the upper bed-plate；The upper bed-plate permanent magnetism group unit includes ndfeb magnet；The ndfeb magnet
It is set in the round cylinder slot.
5. permanent magnet suspension earthquake isolating equipment according to claim 1, which is characterized in that the upper bed-plate permanent magnetism group unit and institute
State the gravity that the active force between lower bottom base permanent magnetism group unit is equal to the upper bed-plate and the shock insulation main body.
6. permanent magnet suspension earthquake isolating equipment according to claim 1, which is characterized in that the upper bed-plate permanent magnetism group unit and institute
It includes multiple for stating lower bottom base permanent magnetism group unit, and is clouded in pedestal；The upper bed-plate permanent magnetism group unit and the lower bottom base are forever
Maximum repulsive force is greater than the sum of the gravity of the upper bed-plate and the shock insulation main body between magnetic group unit.
7. permanent magnet suspension earthquake isolating equipment according to claim 1, which is characterized in that further include having magnetic field baffle；The magnetic
Field baffle plate setting is in the side of the upper bed-plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811509629.3A CN109537970A (en) | 2018-12-11 | 2018-12-11 | A kind of permanent magnet suspension earthquake isolating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811509629.3A CN109537970A (en) | 2018-12-11 | 2018-12-11 | A kind of permanent magnet suspension earthquake isolating equipment |
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| Publication Number | Publication Date |
|---|---|
| CN109537970A true CN109537970A (en) | 2019-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811509629.3A Pending CN109537970A (en) | 2018-12-11 | 2018-12-11 | A kind of permanent magnet suspension earthquake isolating equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112267593A (en) * | 2020-11-24 | 2021-01-26 | 金陵科技学院 | Permanent magnet suspension active driving quality device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006291512A (en) * | 2005-04-07 | 2006-10-26 | Daiken Kensetsu Kogyo Kk | Base isolation device, building using base isolation device, and mounting method for base isolation device |
| CN106760843A (en) * | 2016-12-14 | 2017-05-31 | 广州大学 | A kind of three-dimensional isolation device based on electromagnetic suspension |
| 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 |
| CN213015660U (en) * | 2018-12-11 | 2021-04-20 | 北京市建筑设计研究院有限公司 | Permanent magnet suspension shock isolation device |
-
2018
- 2018-12-11 CN CN201811509629.3A patent/CN109537970A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006291512A (en) * | 2005-04-07 | 2006-10-26 | Daiken Kensetsu Kogyo Kk | Base isolation device, building using base isolation device, and mounting method for base isolation device |
| CN106760843A (en) * | 2016-12-14 | 2017-05-31 | 广州大学 | A kind of three-dimensional isolation device based on electromagnetic suspension |
| 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 |
| CN213015660U (en) * | 2018-12-11 | 2021-04-20 | 北京市建筑设计研究院有限公司 | Permanent magnet suspension shock isolation device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112267593A (en) * | 2020-11-24 | 2021-01-26 | 金陵科技学院 | Permanent magnet suspension active driving quality device |
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