CN204456491U - Viscoelastic damping rolling ball shock insulation support - Google Patents
Viscoelastic damping rolling ball shock insulation support Download PDFInfo
- Publication number
- CN204456491U CN204456491U CN201420857576.5U CN201420857576U CN204456491U CN 204456491 U CN204456491 U CN 204456491U CN 201420857576 U CN201420857576 U CN 201420857576U CN 204456491 U CN204456491 U CN 204456491U
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- conduit
- plate
- viscoelastic damping
- lower plate
- enclosing
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- 238000013016 damping Methods 0.000 title claims abstract description 47
- 238000005096 rolling process Methods 0.000 title claims abstract description 27
- 230000035939 shock Effects 0.000 title abstract description 19
- 238000009413 insulation Methods 0.000 title abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 39
- 238000002955 isolation Methods 0.000 claims abstract description 33
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 229920001971 elastomer Polymers 0.000 description 11
- 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 description 8
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000003190 viscoelastic substance Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004970 Chain extender Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920003226 polyurethane urea Polymers 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The utility model provides a to the defect of shock isolation device in the past, improve shock isolation ability, low cost, effectual, subduct the apparent superior viscoelastic damping spin shock insulation support of vibrations energy. The center of the upper side surface of the lower plate is provided with the baffle, the inner area of the baffle is provided with the concave curved surface, the concave curved surface takes the center of the lower plate as the circular point array distribution, the concave curved surface is provided with the rolling balls, the inner area of the baffle is provided with the viscoelastic damping material layer, the outer side of the baffle is provided with the channel, and the lower plate center of the channel is taken as the circle center array distribution; the downside of upper plate is equipped with the dull polish layer, and dull polish layer surface is equipped with viscoelastic damping material, corresponds the position with the channel of hypoplastron and is equipped with and prevents the trompil board, prevents that the trompil board is connected with the channel cooperation, prevents that the inside of trompil board is equipped with the spring, and the spring is connected with the channel. The utility model provides high damping of vibrations energy, low cost, effectual has fine guide meaning in the real shock insulation field of fixed building, has fine practical value and popularization meaning.
Description
Technical field
The utility model relates to technical field of fixed buildings, the vibration proof of building or vibrations, relates to a kind of viscoelastic damping rolling ball isolation bearing specifically.
Background technology
Isolation structure has very large advantage compared with traditional seismic design structure, utilizes and arranges that the isolation structure of Seismic Isolation of Isolation Layer strengthens the ability that building resists earthquake disaster and has good prospect.The novel shock isolating pedestal of development isolation property excellence improves isolation structure anti-seismic performance important guarantee.
The base isolation bearing of current employing mainly contains: bearing, the combined isolation such as laminated rubber bases, sliding isolated bearing, rolling pendulum, spin, roller bearing.Wherein, laminated rubber bases is most widely used, and reaches more than 90%.
Laminated rubber bases
Due to the restriction of the rubber vibration isolation cushion performance of routine, conventional seismic isolation technology is made to there are some more formidable shortcomings.
Elastomeric isolation pad with intermediate layers is by rubber and sandwich clad steel layering is superimposed forms through high temperature vulcanized bonding.On its engineer applied, problem deserving of attention is as follows:
1. stretching resistance is not very high: rubber is not the material that density is very high, and its pulling force is general not high.But structure usually has very large twisting resistance and Vertical Seismic Load in earthquake, especially under strong earthquakes condition, vertical seismic action is often very large.This makes basis often have lift-off phenomenon.
2. quality requirement is manufactured high: on the one hand due to the supporting member that sandwich rubber cushion is whole building structure, its quality and performance decides the safety in building last 100 years application life.Being its quality and performance on the other hand, from being difficult in appearance differentiate, there is very strong quality hiding.
3. paste more difficult with other material: the concrete surface of rubber and building is generally difficult to link, and in rubber vibration isolation cushion, the special cementing agent of general use is connected rubber with connection steel plate, which increases cost.
4. the use experience of material is relatively less: compare with concrete with steel, as the rubber of agent structure material, then lacks use experience.
5. there is creep properties.
Sliding base-isolation element
Sliding base-isolation element is formed primarily of the material that the friction factor such as some image-stone ink, mica, grains of sand layer, polyfluortetraethylene plates are less.Wherein the material such as graphite, the grains of sand simple and effectively can improve the anti-seismic performance of farm dwelling, proposed by Chinese scholar Li Li, and application is obtained on the one-storey house of 4 16 square meters in Yunnan Province, but due to the limited load bearing capacities of the materials such as the grains of sand, architecturally this method can not be used higher.
Roll the elements such as pendulum, spin, roller bearing
This class component is formed primarily of roller and chute, and when earthquake occurs, roller rolls in slot rolling, and seismic wave is to the transmission of superstructure isolator, and slot rolling can limit the maximum displacement of roller simultaneously.If chute is spill, device also has the ability of Self-resetting.
Current existing rolling shock insulation device mainly contains spin and adds spring reverse motion and spin band spill restoring board earthquake isolating equipment, under geological process, spin adds the substrate of spring reverse motion and between spin, relative rolling occurs and the frictional force produced can earthquake energy, the frequency band range very wide to ground input is all effective, and lot of domestic and international scholar carried out some theoretical and experimental studies to this.Although spin adds spring reverse motion have good isolating affection, its restraining ability is bad, and when earthquake is stronger, spin likely rolls out from base plate, and the location of spin is also pretty troublesome.As the Chinese patent of notice of authorization on the 23rd in May calendar year 2001, notification number is CN2431333Y, disclose a kind of dissipative vibration isolation device for building, the ball of its moveable support is circular spheroid, power consumption spheroid upper surface assembles anti-skid layer, top and the bottom contact surface is spheric, spin band spill restoring board earthquake isolating equipment, due to the existence of spin, make it have good damping effect, groove can control the rolling of spin effectively simultaneously, and location is also convenient and reliable, but owing to there is no the measure of other restriction rolling ball rolls amounts, spin still has the possibility rolled out from spill restoring board plate.And only rely on spin friction energy dissipation, the consumption effect for seismic forces is inadequate.The ball disc spring shock isolating pedestal that in February, 2012 authorizes, notification number ZL201020265000.1, disclosed a kind of earthquake isolating equipment, increases the reset capability of energy dissipating ability and ball at the SMA silk of steel plate surrounding setting, SMA silk cost is higher, and there will be the situation of breaking under Large travel range.
Utility model content
The purpose of this utility model is to provide a kind of defect for earthquake isolating equipment in the past, improves shock insulation ability, low cost, the viscoelastic damping rolling ball isolation bearing that effective, abatement vibration energy is obviously superior.
In order to achieve the above object, the utility model comprises spin, upper plate, lower plate and spring, also comprise enclosing, anti-pull trough plate, conduit and viscoelastic damping material, the upper side center of lower plate is provided with enclosing, enclosing interior zone is provided with concave curvatures, concave curvatures with the center of lower plate for dot matrixes distributes, spin is provided with in concave curvatures, enclosing interior zone is provided with viscoelastic damping material, the degree of depth of visco-elastic damping material arranged calculating of consuming energy needed for ball diameters and building structure is determined, the outside of enclosing is provided with conduit, conduit with lower plate center for center of circle array distribution, the region that the center of upper plate downside is corresponding with enclosing is provided with frosted layer, frosted layer surface is provided with visco-elastic damping material, and be provided with anti-pull trough plate with the conduit correspondence position of lower plate, anti-pull trough plate and conduit are connected, the inside of anti-pull trough plate is provided with spring, and spring is connected with conduit.
Of the present utility model enclosing is set in lower plate, and concave curvatures is set, relevant concave curvatures is provided with at the correspondence position of upper plate, and arrange at concave curvatures relevant position or scribble viscoelastic damping material, roller surface also scribbles visco-elastic damping material, utilizes the viscoelastic power abatement vibration energy between spin and visco-elastic damping material; Anti-pull trough plate and conduit are connected, and arrange spring therein, can X planar, freely-movable in Y-direction, the motion in four orientation of spring can cut down vibration energy; The setting of enclosing, anti-pull trough plate and conduit are connected, and ensure that spin will cause spin to roll out concave curvatures because of the vibrations in Z-direction, and direct collision can not occur between upper and lower plate, also can not be separated, ensure that application life.
Described upper plate, lower plate, enclosing interior zone are positive symmetric shape.Described positive symmetric figure comprises square, rectangle, rhombus, circle etc.
Described anti-pull trough plate, conduit, spin all at least 3.Here 3 is the problem considering balance, carries out strong support to upper and lower plate.
Anti-pull trough plate is the rectangle channel-section steel of inner hollow, its side being parallel to upper plate is arranged, conduit is rectangle steel, and its two ends bend downwards, and is fixed in lower plate, its side being parallel to lower plate is arranged, conduit mid portion, through anti-pull trough plate, is connected with anti-pull trough plate, is provided with spring in anti-pull trough plate inside, conduit is positioned at the center of anti-pull trough plate, and spring is arranged on the both sides perpendicular to conduit.The setting of anti-pull trough plate solves shock mount Problems existing in the past, can ensure the stability of whole bearing.
Described flexible member comprises spring and semi-circular mild steel damper.
The spring of described flexible member is hard spring.Hard spring can provide enough restoring forces in the horizontal direction, to ensure between upper and lower plate after departing from positive correspondence position, positive correspondence position relation can be returned to, in addition, hard spring can also ensure the initial stiffness of this device, and under small vibrations, hard spring keeps the rigidity of this device, and ball does not roll, after vibrations reach some strength, ball rolls and plays action weaken.
The downside of described conduit is provided with visco-elastic damping material.Described visco-elastic damping material is polyurethane-urea class viscoelastic damping material, this material is made up of first, second two component, wherein first component is the prepolymer of isocyanate groups end-blocking, and component B is the mixture of amine terminated polyether, end hydroxy polyether, bulky amine chain extender and auxiliary agent composition.During cast, after being uniformly mixed by hand by polyurethane casting machine or electric drill, material is cast between steel ball and upper and lower base plate.Within 24 hours, visco-elastic damping material is solidified into through room temperature, the fissipation factor of this damping material within the scope of-10 DEG C ~ 50 DEG C is not less than 0.5, increase the energy dissipation capacity that spin forced vibration is returned to equalization point, described elastic damping material layer has the ability slowly recovered, slowly can recover voluntarily after vibrations occur, there is good practical value.
The corresponding enclosing interior zone in described frosted layer position is also provided with symmetrical concave curvatures.The setting of frosted layer is that frosted layer rough surface makes viscoelastic material have enough attachment points in order to enable viscoelastic material be bonded on frosted layer.
Described roller surface scribbles visco-elastic damping material.
Described spin, enclosing, anti-pull trough plate, conduit, upper plate and lower plate are steel material.
Anti-pull trough plate and upper plate, conduit is with lower plate and is fixedly connected with.
The utility model substantially increases the abatement of vibration energy, low cost, effective, has good directive significance, have good practical value and dissemination in fixed buildings actual shock insulation field.
Accompanying drawing explanation
Fig. 1 the utility model overall structure schematic diagram;
Fig. 2 is that Fig. 1 the utility model overlooks sectional structure schematic diagram;
Fig. 3 is that Fig. 2 the utility model A-A is to sectional view;
Fig. 4 is the utility model experimental data hysteresis loop figure;
Fig. 5 is the experimental data hysteresis loop figure of prior art conventional friction rolling shock insulation support;
Fig. 6 is the rolling shock insulation support experimental data hysteresis loop figure that prior art surrounding arranges SMA silk.
In figure: 1 spin; 2 enclosings; 3 anti-pull trough plate; 4 conduits; 5 concave curvatures; 6 upper plates; 7 lower plates; 8 viscoelastic damping material; 9 flexible members.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model will be further described.
As shown in Figure 1, a kind of viscoelastic damping rolling ball isolation bearing, comprise spin 1, upper plate 6, lower plate 7 and flexible member 9, also comprise enclosing 2, anti-pull trough plate 3, conduit 4 and viscoelastic damping material 8, the upper side center of lower plate 7 is provided with enclosing 2, enclosing 2 interior zone is provided with concave curvatures 5, concave curvatures 5 with the center of lower plate 7 for dot matrixes distributes, spin 1 is provided with in concave curvatures 5, enclosing 2 interior zone is provided with viscoelastic damping material 8, the outside of enclosing 2 is provided with conduit 4, conduit 4 with the center of lower plate 7 for center of circle array distribution; The region that the center of upper plate 6 downside is corresponding with enclosing 2 is provided with frosted layer, frosted layer surface is provided with visco-elastic damping material, anti-pull trough plate 3 is provided with conduit 4 correspondence position of lower plate 7, anti-pull trough plate 3 is connected with conduit 4, the inside of anti-pull trough plate 3 is provided with flexible member 9, and flexible member 9 is connected with conduit 4.
As shown in Figure 2, described upper plate 6, lower plate 7, enclosing 2 interior zone are positive symmetric shape.
Described anti-pull trough plate 3, conduit 4, spin 1 all at least 4.
As shown in Figure 3, anti-pull trough plate 3 is the rectangle channel-section steel of inner hollow, and its side being parallel to upper plate 6 is arranged, and conduit 4 is rectangle steel, its two ends bend downwards, and being fixed in lower plate 7, its side being parallel to lower plate 7 is arranged, and conduit 4 mid portion is through anti-pull trough plate 3, be connected with anti-pull trough plate 3, be provided with flexible member 9 in anti-pull trough plate 3 inside, conduit 4 is positioned at the center of anti-pull trough plate 3, and flexible member 9 is arranged on the both sides perpendicular to conduit 4.
Described flexible member 9 comprises spring and semi-circular mild steel damper.Here spring is hard spring.
The downside of described conduit 4 is provided with visco-elastic damping material.
Corresponding enclosing 2 interior zone in described frosted layer position is also provided with symmetrical concave curvatures 5.
Described spin 1 surface scribbles visco-elastic damping material.
Described spin 1, enclosing 2, anti-pull trough plate 3, conduit 4, upper plate 6 and lower plate 7 are steel material.
Anti-pull trough plate 3 and upper plate 6, conduit 4 is with lower plate 7 and is fixedly connected with.
In the mechanical property contrast test done for viscoelastic damping rolling ball isolation bearing, shock isolating pedestal applies the vertical load of 20KN, adopt sinusoidal excitation, driving frequency is 0.2Hz, displacement amplitude 5cm, the restoring force of shock isolating pedestal of test viscoelastic damping rolling ball isolation bearing, common shock isolating pedestal, band SMA silk and the hysteresis loop of displacement, as Figure 4-Figure 6.The area that hysteretic loop in the hysteresis loop of experimental data surrounds can find out the catabiotic size of shock isolating pedestal, and hysteretic loop is fuller, consumes energy larger:
As shown in Figure 4, hysteretic loop of the present utility model is maximum.
As shown in Figure 5, the hysteretic loop of common shock isolating pedestal is of the present utility model about 1/4.
As shown in Figure 6, the hysteretic loop being with the shock isolating pedestal of SMA silk is of the present utility model about 1/3.
Therefore, the consumption of the utility model to vibration energy is remarkable.
Claims (10)
1. a viscoelastic damping rolling ball isolation bearing, comprise spin (1), upper plate (6), lower plate (7) and flexible member (9), it is characterized in that: also comprise enclosing (2), anti-pull trough plate (3), conduit (4) and viscoelastic damping material (8), the upper side center of lower plate (7) is provided with enclosing (2), enclosing (2) interior zone is provided with concave curvatures (5), concave curvatures (5) is dot matrixes distribution with the center of lower plate (7), spin (1) is provided with in concave curvatures (5), enclosing (2) interior zone is provided with viscoelastic damping material (8), the outside of enclosing (2) is provided with conduit (4), conduit (4) is center of circle array distribution with the center of lower plate (7), the region that the center of upper plate (6) downside is corresponding with enclosing (2) is provided with frosted layer, frosted layer surface is provided with visco-elastic damping material, anti-pull trough plate (3) is provided with conduit (4) correspondence position of lower plate (7), anti-pull trough plate (3) and conduit (4) are connected, the inside of anti-pull trough plate (3) is provided with flexible member (9), one end of flexible member (9) is connected with conduit (4), and the other end is connected with anti-pull trough plate (3).
2. viscoelastic damping rolling ball isolation bearing according to claim 1, is characterized in that: described upper plate (6), lower plate (7), enclosing (2) interior zone are positive symmetric shape.
3. viscoelastic damping rolling ball isolation bearing according to claim 1, is characterized in that: described anti-pull trough plate (3), conduit (4), spin (1) all at least 3.
4. viscoelastic damping rolling ball isolation bearing according to claim 1, it is characterized in that: the rectangle channel-section steel that anti-pull trough plate (3) is inner hollow, its side being parallel to upper plate (6) is arranged, conduit (4) is rectangle steel, its two ends bend downwards, and be fixed in lower plate (7), its side being parallel to lower plate (7) is arranged, conduit (4) mid portion is through anti-pull trough plate (3), be connected with anti-pull trough plate (3), flexible member (9) is provided with in anti-pull trough plate (3) inside, conduit (4) is positioned at the center of anti-pull trough plate (3), flexible member (9) is arranged on the both sides perpendicular to conduit (4).
5. the viscoelastic damping rolling ball isolation bearing according to claim 1 or 4, is characterized in that: described flexible member (9) comprises spring and semi-circular mild steel damper.
6. the viscoelastic damping rolling ball isolation bearing according to any claim of claim 1,3 or 4, is characterized in that: the downside of described conduit (4) is provided with visco-elastic damping material.
7. viscoelastic damping rolling ball isolation bearing according to claim 1, is characterized in that: corresponding enclosing (2) interior zone in described frosted layer position is also provided with symmetrical concave curvatures (5).
8. viscoelastic damping rolling ball isolation bearing according to claim 1, is characterized in that: described spin (1) surface scribbles visco-elastic damping material.
9. viscoelastic damping rolling ball isolation bearing according to claim 1, is characterized in that: described spin (1), enclosing (2), anti-pull trough plate (3), conduit (4), upper plate (6) and lower plate (7) are steel material.
10. viscoelastic damping rolling ball isolation bearing according to claim 1, is characterized in that: anti-pull trough plate (3) and upper plate (6), conduit (4) is with lower plate (7) and is fixedly connected with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420857576.5U CN204456491U (en) | 2014-12-30 | 2014-12-30 | Viscoelastic damping rolling ball shock insulation support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420857576.5U CN204456491U (en) | 2014-12-30 | 2014-12-30 | Viscoelastic damping rolling ball shock insulation support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204456491U true CN204456491U (en) | 2015-07-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420857576.5U Withdrawn - After Issue CN204456491U (en) | 2014-12-30 | 2014-12-30 | Viscoelastic damping rolling ball shock insulation support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204456491U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563319A (en) * | 2014-12-30 | 2015-04-29 | 青岛理工大学 | Viscoelastic damping rolling ball shock insulation support |
| CN108396873A (en) * | 2018-04-28 | 2018-08-14 | 佛山科学技术学院 | A kind of rolling shock insulation support |
| CN109941167A (en) * | 2019-04-27 | 2019-06-28 | 吉林大学 | Off highway vehicle seat horizontal vibration isolation suspension |
-
2014
- 2014-12-30 CN CN201420857576.5U patent/CN204456491U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563319A (en) * | 2014-12-30 | 2015-04-29 | 青岛理工大学 | Viscoelastic damping rolling ball shock insulation support |
| CN104563319B (en) * | 2014-12-30 | 2016-10-05 | 青岛理工大学 | Viscoelastic damping rolling ball shock insulation support |
| CN108396873A (en) * | 2018-04-28 | 2018-08-14 | 佛山科学技术学院 | A kind of rolling shock insulation support |
| CN109941167A (en) * | 2019-04-27 | 2019-06-28 | 吉林大学 | Off highway vehicle seat horizontal vibration isolation suspension |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150708 Effective date of abandoning: 20161005 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |