CN201106151Y - Multidimensional shock-absorbing shock-insulation support - Google Patents
Multidimensional shock-absorbing shock-insulation support Download PDFInfo
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- CN201106151Y CN201106151Y CNU2007200561302U CN200720056130U CN201106151Y CN 201106151 Y CN201106151 Y CN 201106151Y CN U2007200561302 U CNU2007200561302 U CN U2007200561302U CN 200720056130 U CN200720056130 U CN 200720056130U CN 201106151 Y CN201106151 Y CN 201106151Y
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- elastic body
- slide block
- pivot joint
- damping elastic
- multidimensional
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Abstract
The utility model discloses a multi-dimensional shock absorption and isolation bearing base which comprises a bottom upper cover, a base, a spindle, a shock absorption elastomer and a pivot sliding block, wherein, the spindle is arranged on the base, a spindle convex column protrudes from the center of the spindle, the top face of the spindle convex column is provided with the pivot sliding block, the shock absorption elastomer is sheathed outside the spindle convex column and the pivot sliding block, the upper cover is pressed on the pivot sliding block, and a sleeve formed under the upper cover is sheathed outside the shock absorption elastomer (4). The multi-dimensional shock absorption and isolation bearing support of the utility model can effectively cope with horizontal, vertical, twisting and bending shock waves, prevent basic twisting and bending shock waves from transferring to superstructures, and can even reset automatically with small size and low cost.
Description
1, technical field:
The utility model relates to damper supporting base field, particularly a kind of bridge, building and large-scale instrument, equipment earthquake damping and isolating mechanism of being widely used in.
2, background technology:
Damping, seismic isolation technology are by adopting earthquake damping and isolating mechanism that structure (or parts) is separated with earthquake ground motion (or supporting base motion) as far as possible, make level, the vertical rigidity of structural system reduce, thereby significantly reduce seismic forces and the energy that is delivered to superstructure.The consideration of factors such as comprehensive safety, economy, feasibility, the damper technology that gains great popularity is the base isolation technology.Base isolation is that the shock insulation layer is set between superstructure and basis, and the shock isolation system by the shock insulation layer comes the extending structure cycle with restriction with absorb the seismic energy that imports structure into.At present, the main shock isolation system that uses has: lamination steel plate rubber bearing seat (being divided into again: board-like rubber bearing seat, high-damping rubber supporting base, plumbous heart rubber bearing seat), sliding friction supporting base, viscoid supporting base (or claiming auxiliary damping support seat).But the design of these supporting bases all mainly concentrates on the horizontal shock insulation, and lamination steel plate rubber bearing seat is that to present not be the bilinear behavior of mark in the sluggishness circulation that back and forth loads, the performance that automatically resets weakness.The sliding friction supporting base can produce certain vertical displacement between the earthquake emergence period, be unfavorable for the stable of mechanism.Still taking as the leading factor of extensive use with lamination steel plate rubber bearing seat.Rubber although handle through modification, contrasts other elastomeric materials as a kind of damping elastic body, and still there is self intrinsic shortcoming in elastomeric material, and friction factor is bigger, and anti-wear performance is lower, and bearing capacity is lower.Make the rubber bearing seat have weak point on using, still need to improve and improve, can not satisfy some particular application simultaneously.Secondly, lamination steel plate rubber bearing seat interlocks superimposed by several layers TR thin rubber plate and steel sheet usually and vulcanizes bonding forming mutually.Because the uneven phenomenon ubiquity of supporting base internal sizes layer thickness profile, the form coefficient of local glue-line and local glue-line mechanical property are then very responsive to the bondline thickness skewness, so be easy to cause local glue-line mechanical property to decline to a great extent.Meanwhile, the vertical pressurized of supporting base is also inhomogeneous, and the easier exposure of defective of indivedual glue-lines germinates cavitation and crackle easily, and expansion forms and shows damage thereupon, directly has influence on the durability of supporting base.Hence one can see that, and lamination steel plate rubber bearing seat must strict control guarantee that the glue-line size evenly distributes, and reaches the even matter of each layer glue-line as far as possible.
There are some researches show that ground motion is spatial movement during owing to earthquake, seismic wave produces external force may show as level, vertical, twisted, deflection.Vertical seismic components is also often very obvious, more than 2/3 of the seismic components that is up to the standard sometimes.A kind of to possess multidimensional damper supporting base still be necessary so design.Existing known three-dimensional of patent or multiple dimension shock-proof device, but all be to connect with the supporting base of comprehensive a plurality of relatively independent functions, connect as the disk spring supporting base of vertical earthquake isolating and the plumbous heart laminated rubber supporting base of horizontal shock insulation.This series connection often causes the supporting base complicated integral structure, and size increases, and consumes more materials, also increases with regard to cost.Moreover the supporting base unit of certain simple function of tool only, just being difficult to tackle other external force, series connection more highlights this defective when using.
3, utility model content:
The utility model provides a kind of multidimensional damper supporting base that is applied to bridge, building and main equipment; it is simple in structure; consumptive material is little; cost is lower; can be at level and vertical direction while damper; and the twisted and deflection that can intercept the basis is delivered to superstructure, effectively absorbs outside vibration energy and effectively protects superstructure.
The utility model is achieved by the following technical solution:
A kind of multidimensional damper supporting base, comprise end loam cake, base, it also comprises ingot axle, damping elastic body and pivot joint slide block in addition, described base is provided with an ingot axle, ingot axle central authorities are protruding with an ingot crown of roll post, at ingot crown of roll capital face pivot joint slide block are housed, and the damping elastomer sleeve is in the outside of ingot crown of roll post and pivot joint slide block, described loam cake is pressed on the pivot joint slide block, and the jacket casing that the loam cake below forms is enclosed within the elastomeric outside of damping.Compared with prior art, the utlity model has following advantage: 1) multiple dimension shock-proof: when being given a shock, the utility model can be by the relative motion between loam cake and pivot joint slide block, loam cake and the damping elastic body, the level that successfully manages is to, vertical, twisted, deflection seismic wave, and can intercept the superstructure that is passed to of the twisted and deflection in basis.The vibrational energy that more can yet can dissipate in isolating exterior excitation, the protection earthquake isolating equipment is not drawn bad under big external drive, isolates or consumes vibration overturning moment, local vibration moment of flexure and node vibration moment of flexure.2) dual damping: polymer pivot joint slide block and conical ring elastic body all play the high damping function of shock insulation.3) automatically reset: be easy to automatically reset under the taper design, action of gravity, need not to reset.4) simple in structure, volume is little, and consumptive material is little, and cost is lower, and is easy for installation.5) critical component all is positioned under the encirclement of the jacket casing that forms below the loam cake, and water proof and dust proof is sun-proof, can prevent damping elastic body excessive deformation.
The external surface of above-mentioned described ingot crown of roll post is up-narrow and down-wide taper seat, and the elastomeric inwall of damping is adjacent on ingot crown of roll post.
The elastomeric external surface of above-mentioned described damping is up-narrow and down-wide taper shape, and the inwall of jacket casing is adjacent at the elastomeric external surface of damping.In fitting face,, be easy to automatically reset under the action of gravity, need not to reset with the design of the conical surface.The elastic body of damping simultaneously is in and is close under the closed state, and damping is improved.
Above-mentioned described ingot crown of roll column top is provided with hemispherical groove, and pivot joint slider bottom is a hemispherical and identical with hemispherical groove.Under the normal condition, mainly bear the load of superstructure by pivot joint slide block, pivot joint slider bottom is a hemispherical, can load be passed equably to the ingot axle with better imitating.
Above-mentioned described described pivot joint slide block end face is the plane, and pivot joint slide block end face is concordant with damping elastic body end face, and damping elastic body end face inner periphery chamfering makes it and pivot saves between the slide block and leaves certain interval.
Above-mentioned described pivot joint slide block and damping elastic body all adopt the high-molecular polymer alloy material.
Hardness, the intensity of above-mentioned described pivot joint slide block material therefor all are higher than damping elastic body material therefor.
Above-mentioned described upper interior surface, ingot axle external surface are equipped with the sandblast layer, and scribble self-lubricating epoxy resin coating.Can reduce the friction factor of each contact interface like this, friction pair can be free to slide each other, reduce wear.
4, description of drawings:
Below in conjunction with accompanying drawing the utility model is done detailed explanation:
Fig. 1 is a three-dimensional tangent plane schematic diagram of the present utility model;
Fig. 2 is a structure sectional view of the present utility model;
Fig. 3 is each critical component decomposing schematic representation of the utility model.
5, the specific embodiment:
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figures 1 to 3, the utility model comprises loam cake 1 and the base of being made by high strength sclerosis steel 2, the edge of loam cake 1, base 2 respectively correspondence be provided with a plurality of bolts hole 9, loam cake 1, base 2 are respectively by being bolted on superstructure 10 and the foundation construction 11.Described base is provided with an ingot axle 3, there is an ingot crown of roll post 6 in ingot axle 3 central authorities, at ingot crown of roll post 6 end faces pivot joint slide block 5 is housed, damping elastic body 4 is enclosed within the outside of ingot crown of roll post 6 and pivot joint slide block 5, described loam cake 1 is pressed on the pivot joint slide block 5, and the jacket casing 7 that loam cake 1 below forms is enclosed within the outside of damping elastic body 4.The external surface of described ingot crown of roll post 6 is up-narrow and down-wide taper seats, and the inwall of damping elastic body 4 is adjacent on ingot crown of roll post 6.The external surface of damping elastic body 4 is up-narrow and down-wide taper shapes, and the inwall of jacket casing 7 is adjacent to the external surface at damping elastic body 4.Damping elastic body 4 is a conical ring, and surfaces externally and internally is the conical surface.The inner wall surface of jacket casing 7 also is the conical surface.
Described ingot crown of roll post 6 tops are provided with hemispherical groove 8, and pivot joint slide block 5 bottoms are hemispherical and identical with hemispherical groove 8.Described pivot joint slide block 5 end faces are the plane, and pivot joint slide block 5 end faces are concordant with 4 faces of damping elastic body, and damping elastic body 4 end face inner periphery chamferings make it and pivot saves between the slide block 5 and leaves certain interval.Described pivot joint slide block 5 and damping elastic body 4 all adopt the high-molecular polymer alloy material.Hardness, the intensity of described pivot joint slide block 5 material therefors all are higher than damping elastic body 4 material therefors.Described loam cake 1 inner surface, ingot axle 3 external surfaces are equipped with the sandblast layer, and scribble self-lubricating epoxy resin coating.
The jacket casing 7 of loam cake 1 forms airtight chamber with damping elastic body 4, under superstructure 10 actions of gravity, pushes damping elastic body 4 to the ingot direction of principal axis during use.Damping elastic body 4 is in and is close under the closed state, and damping is improved.
The utility model except the structure science, rationally, beyond the novelty, also adopted the material of novel high molecular polymer alloy as damping elastic body 4 and pivot joint slide block 5.High-molecular polymer alloy is polyurethane or engineering plastics through modification, and this polymeric material can be selected suitable modulus of elasticity according to no engineering application requirements, suitable stiffness, suitable tearing strength.And design corresponding prescription in response to different functional units, and making the material property brilliance, many performances are superior than rubber and modified rubber.This polymer alloy material has the following advantages:
1, high damping, self-reparability and excellent elasticity, high impact properties;
2, friction factor is low, and self-lubricating property is good;
3, hardness range is wide, sets at case;
4, abrasion resistance is good, flexible resistance;
5, high-tenacity and high elongation rate;
6, the load support capacity is big, good damping effect;
7, oil resistance excellence;
8, stable chemical performance, hydrolysis, ageing-resistant;
9, one-time cast-forming, the fault in material probability falls in whole even matter.
Hardness, the intensity of pivot joint slide block 5 material therefors all are higher than damping elastic body 4 material therefors.Under normal circumstances, mainly bear the load of superstructure 10 by pivot joint slide block 5.
In addition, the utility model also adopts the novel metal surface coating, as corrosion-inhibiting coating, more important is to make the friction factor between metal surface and the described polymer alloy material friction pair reach designing requirement on the one hand, uses the PTFE thin plate as lubriation material thereby can replace tradition.The metal surface that all contact with polymer comprises loam cake 1 inner surface, ingot axle 3 external surfaces, all does blasting treatment, form the sandblast layer, and be coated with the special surface coating, polymer alloy adopts the self-lubricating prescription in addition, makes the friction factor of each contact interface remain on below 0.12.Because pivot joint slide block 5 is taked the special formulation material, the friction factor of horizontal frictional interface also comes lowly than other contact interfaces, and the experiment demonstration is about 0.07.So the supporting base freedom of motion is very big.
Supporting base subtracts, shock insulation mechanism:
1. level is to vibrations:
When shaking from horizontal direction, loam cake 1 is done horizontal slip on pivot joint slide block 5 upper surfaces, and the jacket casing 7 of loam cake 1 pushes damping elastic body 4 simultaneously, and produces horizontal movement.Damping elastic body 4 external surfaces on the one hand along circumferential direction crimp, resolve into ingot crown of roll post 6 directions and the gravity direction stress of level to the center, extrusion ingot axle 3 after being subjected to the extruding of jacket casing 7 inwalls on the other hand.Damping elastic body 4 is in all the time and is close in the closed chamber, and this design is for preventing damping elastic body 4 interference distortion, and of great advantage to protection damping elastic body 4, damping meanwhile also is further enhanced, and reduces the supporting base displacement.The conical surface type design helps stress and tends to shift to the bottom.When vibrations disappear, rely on the elasticity recovery of damping elastic body 4 and automatically reset, and may rotate adjustment.
2. vertical vibrations:
Because base 2 is fixed on the foundation construction 11, loam cake 1 is fixed in the superstructure 10, when vertically shaking, can regard relative periodic motion between base 2 and the loam cake 1 as, just vibrates.Deviate from when motion, the loam cake 1 damping elastic body 4 that can slip away, damping elastic body 4 is along ingot crown of roll post 6 base 2 that slips away.Reversible again during move toward one another, damping elastic body 4 is because of the self gravitation effect, and conical surface ingot crown of roll post 6 guiding are arranged, and damping elastic body 4 can automatically reset; Loam cake 1 is resetted by the guiding of damping elastic body 4 conical surfaces.Move toward one another continues, and pivot joint slide block 5 is subjected to further compression, and the pressurized of damping elastic body 4 upper surfaces and side increases, and transmits pressure to ingot axle 3 and base 2 simultaneously.
3. twisted, deflection vibrations:
Between loam cake 1 and pivot joint slide block 5, pivot joint slide block 5 and hemispherical groove 8, loam cake 1 inside wall and damping elastic body 4, damping elastic body 4 and the ingot crown of roll post 6 self-lubrication treatment is arranged all, relative friction coefficient all is not more than 0.1 each other, can be free to slide each other.So loam cake 1 can be relative freely twisted with base 2.When the deflection vibrations were done in support superstructure 10, horizontal level was departed from pivot joint slide block 5 upper surfaces, and superstructure 10 centers of gravity slightly are offset, and move apart axis and drop on supporting base one side.Oppress pivot joint slide block 5 also to tilt, damping elastic body 4 one side pressurizeds increase, after the distortion vibrations disappear, and 4 resiliences of damping elastic body, supporting base 2 recovery levels, center of gravity returns.Certainly, level also might change into twisted or the deflection vibrations to reaching vertical vibrations, and supporting base also can in like manner be worked.
Claims (9)
1, a kind of multidimensional damper supporting base, comprise end loam cake (1), base (2), it is characterized in that: it also comprises ingot axle (3), damping elastic body (4) and pivot joint slide block (5), described base is provided with an ingot axle (3), ingot axle (3) central authorities are protruding with an ingot crown of roll post (6), at ingot crown of roll post (6) end face pivot joint slide block (5) is housed, damping elastic body (4) is enclosed within the outside of ingot crown of roll post (6) and pivot joint slide block (5), described loam cake (1) is pressed on the pivot joint slide block (5), and the jacket casing (7) that loam cake (1) below forms is enclosed within the outside of damping elastic body (4).
2, a kind of multidimensional damper supporting base according to claim 1, it is characterized in that: the external surface of described ingot crown of roll post (6) is up-narrow and down-wide taper seat, the inwall of damping elastic body (4) is adjacent on ingot crown of roll post (6).
3, a kind of multidimensional damper supporting base according to claim 2, it is characterized in that: the external surface of damping elastic body (4) is up-narrow and down-wide taper shape, the inwall of jacket casing (7) is adjacent to the external surface in damping elastic body (4).
4, according to claim 1,2 or 3 described a kind of multidimensional damper supporting bases, it is characterized in that: described ingot crown of roll post (6) napex is provided with hemispherical groove (8), and pivot joint slide block (5) bottom is a hemispherical and identical with hemispherical groove (8).
5, a kind of multidimensional damper supporting base according to claim 4, it is characterized in that: described pivot joint slide block (5) end face is the plane, pivot joint slide block (5) end face is concordant with damping elastic body (a 4) face, damping elastic body (4) face inner periphery chamfering, make it and pivot joint slide block (5) between leave certain interval.
6, a kind of multidimensional damper supporting base according to claim 4, it is characterized in that: the edge of loam cake (1), base (2) respectively correspondence be provided with a plurality of bolts hole (9), loam cake (1), base (2) are respectively by being bolted on superstructure (10) and the foundation construction (11).
7, a kind of multidimensional damper supporting base according to claim 5 is characterized in that: described pivot joint slide block (5) and damping elastic body (4) all adopt the high-molecular polymer alloy material.
8, a kind of multidimensional damper supporting base according to claim 7 is characterized in that: hardness, the intensity of described pivot joint slide block (5) material therefor all are higher than damping elastic body (4) material therefor.
9, a kind of multidimensional damper supporting base according to claim 8 is characterized in that: described loam cake (1) inner surface, ingot axle (3) external surface are equipped with the sandblast layer, and scribble self-lubricating epoxy resin coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200561302U CN201106151Y (en) | 2007-08-20 | 2007-08-20 | Multidimensional shock-absorbing shock-insulation support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200561302U CN201106151Y (en) | 2007-08-20 | 2007-08-20 | Multidimensional shock-absorbing shock-insulation support |
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| Publication Number | Publication Date |
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| CN201106151Y true CN201106151Y (en) | 2008-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200561302U Expired - Fee Related CN201106151Y (en) | 2007-08-20 | 2007-08-20 | Multidimensional shock-absorbing shock-insulation support |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104241042A (en) * | 2014-08-01 | 2014-12-24 | 国家电网公司 | Structure and method for weakening vibration of operating mechanism by means of axial nonlinear transmission of waves |
| CN107964836A (en) * | 2017-11-15 | 2018-04-27 | 上海初厚振动科技有限公司 | A kind of Combined type vibration isolating device applied to track traffic |
| CN112626999A (en) * | 2021-01-08 | 2021-04-09 | 广东东桥钢结构安装工程有限公司 | Anti-seismic reinforced bridge steel structure |
-
2007
- 2007-08-20 CN CNU2007200561302U patent/CN201106151Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104241042A (en) * | 2014-08-01 | 2014-12-24 | 国家电网公司 | Structure and method for weakening vibration of operating mechanism by means of axial nonlinear transmission of waves |
| CN107964836A (en) * | 2017-11-15 | 2018-04-27 | 上海初厚振动科技有限公司 | A kind of Combined type vibration isolating device applied to track traffic |
| CN112626999A (en) * | 2021-01-08 | 2021-04-09 | 广东东桥钢结构安装工程有限公司 | Anti-seismic reinforced bridge steel structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080827 Termination date: 20160820 |
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| CF01 | Termination of patent right due to non-payment of annual fee |