CN105257752A - Tuning track type three-dimensional shock isolation device - Google Patents
Tuning track type three-dimensional shock isolation device Download PDFInfo
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- CN105257752A CN105257752A CN201510611475.9A CN201510611475A CN105257752A CN 105257752 A CN105257752 A CN 105257752A CN 201510611475 A CN201510611475 A CN 201510611475A CN 105257752 A CN105257752 A CN 105257752A
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Abstract
The invention relates to a novel three-dimensional shock isolation device suitable for precious unanchored cultural relics and equipment. The tuning track type three-dimensional shock isolation device mainly comprises an upper horizontal shock isolation part and a lower vertical shock isolation part which are connected through four guide components and a vertical stress component. The horizontal shock isolation part decomposes the horizontal earthquake action into two directions through two groups of orthogonal tracks, four parallel arc tracks are arranged in each direction to carry out hysteretic energy with the gravity serving as restoring force, the end curvature of the arc tracks is increased, and damping is increased to achieve the purpose of limitation. The vertical shock isolation part connects a middle plate and a base plate together through the four guide components so that the horizontal shock isolation part can only move vertically relative to the base plate, horizontal and vertical decoupling is achieved, and metal rubber with a good shock isolation effect is used for carrying out vertical shock isolation. The tuning track type three-dimensional shock isolation device not only achieves three-dimensional shock isolation, but also takes limiting protection into account, can control the three-direction shock isolation parameters, and has good practicability.
Description
Technical field
The present invention relates to a kind of novel three-dimensional isolation device, be applicable to valuablely floating put the anti-vibration protected of historical relic or accurate floating equipment.
Background technique
Earthquake is a kind of Sudden Natural Disasters, a violent earthquake can to an area even national society, an economy cause enormous impact and the life of the many people of profound influence, therefore often cause the whole nation and even global great attention.Carrying out finding in all previous Losses Assessment of Seismic Disasters, economic loss not only comprises the damage of building, the destruction of the Infrastructure such as road, bridge, power station and lifeline engineering, also comprises the damaged of various precision type instrument, expensive equipment, the old historical relic of exhibition etc. in building and even destroys.In Wenchuan earthquake as generation in 2008, add up according to State Cultural Relics Bureau, the province involved due to violent earthquake substantially all belongs to the City Regions of China's cultural heritage, whole nation many places major historical and cultural sites under state protection (wherein 2 places list World Heritage List in) is damaged in various degree, has 2766 culturals relics in the collection of cultural institution (wherein 292 rare cultural relics) impaired; And for example 1975, there are 7.3 grades of earthquakes in Haicheng City, the equipment of Haicheng City electric substation is destroyed entirely, and Soils in Yingkou District telecommunication cable damages, Communication Block, and industry equipment also loses seriously, and economic loss amounts to about 8.1 hundred million yuan.
These valuable historical relics and equipment is old for exhibition, use or reason is generally floating is easily placed on showcase or ground; thus very easily damage in earthquake; itself is very valuable again; some equipment is also responsible for the critical functions such as data storage and liaison; therefore from they important function in social influence, production, safety, scientific research, communication, medical treatment etc.; it is worth and often will exceedes the value of building itself, therefore puts the anti-vibration protected very important of historical relic and equipment for valuable floating.
, continue to bring out out the novel shock-proof devices such as roller type, roller type, ball type, friction pendulum abroad for floating research of putting the shock-proof device of historical relic and equipment a lot, be proved in earthquake centre in multiple times and there is good anti-vibration protected effect; The domestic existing floating shock-proof device majority putting historical relic or equipment is import, and the example that independent research is also applied is little.Instantly global earthquakes takes place frequently, and the protection of the antidetonation of valuable floating equipment and historical relic is very urgent, therefore work out effectively for it, be suitable for, economic, reliable, durable shock-proof device significant.
Summary of the invention
The shock-proof device majority of existing valuable historical relic or equipment is also the shock-proof device of only level, does not consider the impact of earthquake vertical component, and reduction response acceleration peak value often can not be taken into account with restriction response displacement amplitude.Consider that the reason of earthquake vertical component mainly contains 3 points: first, earthquake motion comprises two levels and vertical three components, and the vertical component peak value in nearly tomography and Damage Epicenter region may be close to and even exceedes horizontal component peak value; Secondly, because valuable floating historical relic and the equipment put generally is placed on showcase in floor or bearing, geological process vertical component is amplified with having certain proportion; Finally, due to valuable floating lighter weight of putting historical relic and equipment, easily slippage and toppling under the vertical component impact of earthquake motion.In sum, consider valuable floating antidetonation protection feature of putting historical relic and equipment herein, take into account the object reducing response acceleration and limiting displacement amplitude, inventing can respectively to the tuning rail mounted three-dimensional isolation device that vertical and level control effectively.
The technological scheme of the tuning rail mounted three-dimensional isolation device of the present invention's design is as follows:
What the present invention relates to is a kind of novel tuning rail mounted three-dimensional isolation device, mainly comprise the top be placed on intermediate plate tuning track horizontal seismic isolation part and the lower metal rubber vertical earthquake isolating part being connected to top board and base plate, two-part recycle four vertical guide rods and connect.
This shock-proof device top tuning rail mounted horizontal seismic isolation part utilizes two groups of orthogonal arc tracks that horizontal earthquake action is decomposed into both direction, there are four arc tracks be parallel to each other in each direction, gravity is utilized to carry out hysteretic energy as restoring force, and centre is the minor arc that radius is larger, both sides are the short arc that radius is less, and end increases damping, reach spacing object by the mode increasing restoring force and damping in end.
First this shock-proof device substructure utilizes four guide rods top board and base plate to be linked together, guide rod uses linear bearing, reach axial relative movement damping very little and can the requirement of radial power transmission, make horizontal seismic isolation part only can do vertical motion relative to base plate, achieve vertical and horizontal direction decoupling zero.Then metal-rubber is carried out vertical earthquake isolating as compression member, owing to there being the existence of guide rod, so by the impact of horizontal force, and the vertical component of the geological process suffered by top board and its upper component all can not can be acted on metal-rubber as the metal-rubber of vertical earthquake isolating material.Metal-rubber has variation rigidity, mutative damp characteristic, with the increase of excitation magnitude, its " natural frequency " reduces, therefore there is good vibration isolating effect, and internal damping enlarges markedly in resonance region, effectively can suppress resonance peak, in vibration isolation district, internal damping reduces rapidly, thus has excellent damping vibration attenuation characteristic.
Compare with the shock-proof device of historical relic for valuable compound equipment with existing, the advantage of this invention is:
1. this invention utilizes linear bearing as guide rod, linear bearing axial friction is very little and controlled, and radial power transmission is reliable, achieve level to vertical decoupling zero, can control to shock insulation parameter and vertical earthquake isolating parameter level respectively, make the design of shock-proof device more reasonable;
2. this invention carries out level to shock insulation by tuning track, gravity is utilized to carry out hysteretic energy as restoring force, and increase track curvature in end, set up damping, achieve and reduce by the object of same its displacement amplitude of limit of the response acceleration peak value of isolation structure;
3. this invention utilizes orthogonal trajectory by horizontal earthquake action breaks, each orbital arc is a corresponding roller respectively, achieve synchronous in cambered surface of each roller in same direction, ensure that the level of shock-proof device table top in movement process, this floatingly puts that thing topples, slippage is very important for preventing;
4. in order to protect valuable floating to put historical relic and equipment; do not allow the material using rubber, wet goods may cause secondary disaster; therefore this invention selects metal-rubber as vertical earthquake isolating material, and the excellent damping and isolation effect that its variation rigidity, mutative damp characteristic are brought is favourable to vertical earthquake isolating.
accompanying drawing illustrates:
Fig. 1 is the perspective view of first embodiment of the present invention;
Fig. 2 is the guide rod sectional detail drawing of first embodiment of the present invention;
Fig. 3 is the metal-rubber cut-away section detail drawing of first embodiment of the present invention;
Fig. 4 is the detail drawing of the tuning track of first embodiment of the present invention;
Fig. 5 is the schematic perspective view at the better visual angle of decomposition texture first of first embodiment of the present invention;
Fig. 6 is the schematic perspective view at the better visual angle of decomposition texture second of first embodiment of the present invention;
Fig. 7 is the perspective view of second preferred embodiment of the present invention, is placed with to float to put thing on shock-proof device.
In figure: 1. base plate; 2. pilot sleeve (linear bearing); 3. guide rod (cylinder axis); 4. guide rod bearing; 5. bolt; 6. metal-rubber fixed groove; 7. metal-rubber; 8. " valve type " guide rod; 9. the top board of fixing metal rubber; 10. bolt draw bar; 11. " valve type " guide bar receiver; 12. intermediate plates; The tuning track in 13.X direction; Damping fixed plate on 14. intermediate plates; 15.X direction damping block; 16. band roller sliding plates; 17.X direction H type roller; 18.Y direction H type roller; Damping fixed plate on 19. band roller sliding plates; 20.Y direction damping block; 21.X direction damping baffle; 22. table boards; The tuning track in 23.Y direction; 24.Y direction damping baffle.
Embodiment
As shown in Figure 1, the present invention is tuning rail mounted three-dimensional isolation device, divides mainly be divided into three parts, the vertical earthquake isolating part namely between base plate 1 and intermediate plate 12 and the horizontal seismic isolation part between intermediate plate 12 and table board 22 by structure function.Two parts are connected by the targeting part being positioned at four angle same model, and both achieved three-dimensional isolation, the level that achieves again is to the decoupling zero with vertical earthquake isolating.
Targeting part mainly comprises pilot sleeve 2, guide rod 3, guide rod bearing 4 and bolt 5, and its structural profile detail drawing as shown in Figure 2.First utilize bolt 5 pilot sleeve 2 to be fixed on four angles of base plate 1, then utilize guide rod bearing 4 that guide rod 3 is fixed on the corresponding position at four angles bottom intermediate plate 12.Thus, when guide rod 3 inserts pilot sleeve 2 time, intermediate plate 12 and only can do vertical motion relative to base plate 1 with upper member, achieves vertical and horizontal direction decoupling zero.
Vertical earthquake isolating part mainly comprises metal-rubber fixed groove 6, metal-rubber 7, end with the top board 9 of " valve type " guide rod 8 of metal-rubber fixed groove, fixing metal rubber, adjustable bolt pull bar 10 and " valve type " guide bar receiver 11, and its structural profile detail drawing as shown in Figure 3.First metal-rubber fixed groove 6 is fixed on base plate 1 centre, then wherein one piece of metal-rubber 7 is placed wherein, then utilize and end is fixed on relevant position bottom intermediate plate 12 with " valve type " guide rod 8 of metal-rubber fixed groove by " valve type " guide bar receiver 11, then " valve type " guide rod 8 is placed on the metal-rubber 7 fixed, metal-rubber fixed groove internal fixtion another one metal-rubber 7 above " valve type " guide rod 8 end, adjustable bolt pull bar 10 is finally utilized to be fastened and fixed the top board 9 of metal-rubber, two pieces of metal-rubbers 7 are made to clamp the end of " valve type " guide rod 8.Thus, the intermediate plate 12 of " valve type " guide rod 8 is connected to and the Vertical Earthquake Loads suffered by superstructure just carries out shock insulation by metal-rubber 7.
Be the perspective view of first embodiment of the present invention as shown in Figure 1, define the X-direction that its left and right directions is tuning track, another is then Y-direction.On intermediate plate 12, both sides are fixed with the tuning track 13 of X-direction along the X direction, its each cambered surface all have X-direction H type roller 17 can roll along cambered surface in X-direction, are fixed wtih the slide plate 16 of band roller in the middle of these rollers.Other direction both sides with roller sliding plate 16 are fixed wtih Y-direction H type roller 18, and the table board 22 being therefore fixed with below the tuning track 23 of Y-direction just can in the Y direction H type roller 18 slide along the Y direction.Material is thus formed on the intermediate plate 12 carrying out vertical earthquake isolating, utilize tuning track 13,23 that Orthogonal Decomposition is carried out in horizontal earthquake effect, by extending natural vibration period and utilizing the mode of friction hysteretic energy to realize horizontal seismic isolation.
The facade detail drawing of tuning track cambered surface as shown in Figure 4, track cambered surface is made up of two kinds of arcs, be positioned at the larger minor arc face A of middle radius and be positioned at the less little cambered surface B of two ends radius respectively, the intersection point of minor arc face A and little cambered surface B is tangent, ensure the continuity of roller motion, also make when roller moves in little cambered surface, because the curvature of cambered surface increases, the restoring force that roller is subject to also increases, and has certain restriction to displacement.Meanwhile all directions are designed with damping block (X-direction damping block 15 and Y-direction damping block 20), together with tuning track, carry out spacing and consume energy to horizontal over-large displacement.
The schematic perspective view of the decomposition texture of first embodiment of the present invention as shown in Figure 5,6, the mutual combination of each component of solid show and kinematic relation.Divide by structure composition component, be mainly divided into six components from the bottom up, first is base plate component, at base plate 1 four angle points with bolt 5 at fixed guide sleeve 2, fixing metal rubber fixed groove 6 reserved adjustable bolt pull bar 10 therebetween; Second is metal-rubber component, has two pieces of metal-rubbers 7, carries out shock insulation for pressurized; 3rd is the component of fixing metal rubber, by the fixing wherein metal-rubber 7 of adjustable bolt pull bar 10, and makes metal-rubber 7 clamp the end of " valve type " guide rod 8, makes the Vertical Earthquake Loads suffered by top carry out shock insulation by metal-rubber; 4th is intermediate plate component, below intermediate plate 12, corner utilizes guide rod bearing 4 fixed guide pole 3, central authorities' " valve type " guide bar receiver 11 anchor portion " valve type " guide rod 8 with metal-rubber fixed groove in its lower section, make intermediate plate 12 and upper component only do vertical motion relative to base plate 1, and carry out shock insulation by metal-rubber 7.On intermediate plate 12, the tuning track 13 of X-direction is fixed in both sides in X direction, damping fixed plate 14 on intermediate plate and X-direction damping block 15 is fixed again in central authorities, make band roller sliding plate and it on, structure can be slided in X direction relative to intermediate plate component, and in placely undertaken spacing by X-direction damping when moving past large and consume energy; 5th is the skateboard component being with roller, X-direction two ends are fixed with X-direction damping baffle 21 and four X-direction H type rollers 17 in its lower section, four Y-direction H type rollers 18 are fixed with at its Y-direction two ends, be fixed with Y-direction damping fixed plate 19 and Y-direction damping block 20 in the above, make it while carrying out X-direction slip relative to substructure, allow its upper component to carry out the relative sliding of Y-direction, the damping that is displaced through of all directions is simultaneously carried out spacing; 6th is table board component, the fixing tuning track 23 of Y-direction below table board 22, fix Y-direction damping on duty 24 at its Y-direction edge, make table board component can do the motion of Y-direction relative to band pulley skateboard component below, and be no more than certain displacement amplitude.
Be the perspective view of second preferred embodiment of the present invention as shown in Figure 7, on shock-proof device, be placed with vase, the solid show effect of shock-proof device in shock insulation process.
Claims (2)
1. the present invention is a kind of novel tuning rail mounted three-dimensional isolation device, mainly comprise upper level shock insulation part and bottom vertical earthquake isolating part, two parts are connected with a vertical applied force component by four vertical guide members, described upper level shock insulation part only can relative to base plate vertical motion, so the vertical and level of shock-proof device is to being decoupling zero, can design the shock insulation parameter of all directions; The metal-rubber component that described vertical earthquake isolating material selection damping and isolation effect is good.
2. horizontal earthquake action is decomposed into both direction by two groups of orthogonal arc tracks by horizontal seismic isolation part described in, utilizes gravity to carry out hysteretic energy as restoring force, increases each arc track end curvature and sets up the object that damping reaches spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510611475.9A CN105257752A (en) | 2015-09-24 | 2015-09-24 | Tuning track type three-dimensional shock isolation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510611475.9A CN105257752A (en) | 2015-09-24 | 2015-09-24 | Tuning track type three-dimensional shock isolation device |
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| CN105257752A true CN105257752A (en) | 2016-01-20 |
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| CN201510611475.9A Pending CN105257752A (en) | 2015-09-24 | 2015-09-24 | Tuning track type three-dimensional shock isolation device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122368A (en) * | 2016-08-17 | 2016-11-16 | 中国机械工业集团有限公司 | A kind of sleeve embedded with spring guide tracked three-way vibration control method |
| CN108266611A (en) * | 2018-03-19 | 2018-07-10 | 西安建筑科技大学 | A kind of three-dimensional friction-pendulum shock-insulation support |
| CN108463084A (en) * | 2018-03-30 | 2018-08-28 | 成都市大通路桥机械有限公司 | A kind of important cabinet track earthquake isolating equipment |
| CN109538674A (en) * | 2018-11-22 | 2019-03-29 | 中国船舶重工集团公司第七〇九研究所 | A kind of adjustable limiter in three-dimensional gap |
| CN111270787A (en) * | 2020-03-02 | 2020-06-12 | 中国地震局工程力学研究所 | Take vertical gravity tuning unit's friction pendulum shock isolation device |
| CN112145620A (en) * | 2020-10-19 | 2020-12-29 | 西南科技大学 | Three-way magnetic force self-adaptive resistance-adjusting composite vibration isolation device |
| CN113803396A (en) * | 2021-09-10 | 2021-12-17 | 中国空间技术研究院 | Controllable variable rigidity and variable damping vibration isolation device |
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| CN101701478A (en) * | 2009-12-08 | 2010-05-05 | 河北理工大学 | Simple-pendulum compound three-dimensional shock isolation support |
| CN203906655U (en) * | 2014-06-15 | 2014-10-29 | 上海理工大学 | Metal rubber crystal oscillator vibration reduction device |
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Patent Citations (7)
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| JPH102375A (en) * | 1996-06-13 | 1998-01-06 | Suzuki Sogyo Co Ltd | Three-dimensional vibration control device |
| JP2008121328A (en) * | 2006-11-14 | 2008-05-29 | Shimizu Corp | Three-dimensional base isolation device |
| CN101457554A (en) * | 2007-12-14 | 2009-06-17 | 尹学军 | Damping ratio adjustable tuning quality damper |
| CN101701478A (en) * | 2009-12-08 | 2010-05-05 | 河北理工大学 | Simple-pendulum compound three-dimensional shock isolation support |
| CN203906655U (en) * | 2014-06-15 | 2014-10-29 | 上海理工大学 | Metal rubber crystal oscillator vibration reduction device |
| CN204226543U (en) * | 2014-10-27 | 2015-03-25 | 中国地震局工程力学研究所 | Bilateral limited space is from trigger type three-dimensional isolation pedestal |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122368A (en) * | 2016-08-17 | 2016-11-16 | 中国机械工业集团有限公司 | A kind of sleeve embedded with spring guide tracked three-way vibration control method |
| CN108266611A (en) * | 2018-03-19 | 2018-07-10 | 西安建筑科技大学 | A kind of three-dimensional friction-pendulum shock-insulation support |
| CN108463084A (en) * | 2018-03-30 | 2018-08-28 | 成都市大通路桥机械有限公司 | A kind of important cabinet track earthquake isolating equipment |
| CN109538674A (en) * | 2018-11-22 | 2019-03-29 | 中国船舶重工集团公司第七〇九研究所 | A kind of adjustable limiter in three-dimensional gap |
| CN109538674B (en) * | 2018-11-22 | 2024-05-24 | 中国船舶重工集团公司第七一九研究所 | Three-way clearance adjustable stopper |
| CN111270787A (en) * | 2020-03-02 | 2020-06-12 | 中国地震局工程力学研究所 | Take vertical gravity tuning unit's friction pendulum shock isolation device |
| CN112145620A (en) * | 2020-10-19 | 2020-12-29 | 西南科技大学 | Three-way magnetic force self-adaptive resistance-adjusting composite vibration isolation device |
| CN113803396A (en) * | 2021-09-10 | 2021-12-17 | 中国空间技术研究院 | Controllable variable rigidity and variable damping vibration isolation device |
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