CN103821863B - A kind of adjustable pendulum-type multidimensional low frequency historical relic damping device - Google Patents
A kind of adjustable pendulum-type multidimensional low frequency historical relic damping device Download PDFInfo
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- CN103821863B CN103821863B CN201410087581.7A CN201410087581A CN103821863B CN 103821863 B CN103821863 B CN 103821863B CN 201410087581 A CN201410087581 A CN 201410087581A CN 103821863 B CN103821863 B CN 103821863B
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- adjustable
- toughened glass
- low frequency
- glass case
- hinged
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- 238000013016 damping Methods 0.000 title claims abstract description 16
- 239000005341 toughened glass Substances 0.000 claims abstract description 31
- 230000035939 shock Effects 0.000 claims abstract description 8
- 238000009413 insulation Methods 0.000 claims abstract description 7
- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 229910001297 Zn alloy Inorganic materials 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 229910001018 Cast iron Inorganic materials 0.000 claims description 2
- 229910000978 Pb alloy Inorganic materials 0.000 claims description 2
- 235000014676 Phragmites communis Nutrition 0.000 claims description 2
- 238000002955 isolation Methods 0.000 description 16
- 229910003110 Mg K Inorganic materials 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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- Vibration Prevention Devices (AREA)
Abstract
The present invention relates to a kind of adjustable pendulum-type low frequency historical relic damping device, comprise connecting rod, toughened glass case, anchor bolt, adjustable counterweight block, lower link, belleville spring, outer showcase, it is characterized in that: described upper small end and described outer showcase hinged, described upper connecting rod lower end and described toughened glass case hinged, described adjustable counterweight block is fixed with described anchor bolt bottom described toughened glass case, described lower link upper end and adjustable pouring weight hinged, described lower link lower end and described belleville spring hinged, described outer showcase limits described belleville spring Horizontal displacement.When there is earthquake, adjustable pendulum-type historical relic low frequency damping device, with very low warble, reaches good function of shock insulation.
Description
Technical field
The present invention relates to a kind of historical relic seismic isolation device, belong to safety protection and the kinematic analysis field of Movable Cultural Relics.
Background technique
Movable Cultural Relics are important component parts of world cultural heritage, and have extremely important culture, historical value, Protection significance is great.To the protection of these historical relics, not only there are fire prevention, antitheft requirement, also should have shockproof requirement.A large amount of earthquake shows, floats and puts historical relic when intensity of earthquake is 3 ~ 4 degree, just likely produces heavy damage.Due to imprevision and the huge destructiveness of earthquake, make to take precautions against earthquakes timely and effectively extremely urgent to these historical relics.
The Development Status putting antique vibration isolation device is floated from collection; domestic aspect wretched insufficiency in this regard, and external aspect such as the countries such as Japan, the U.S., Italy popularity use dissimilar antique vibration isolation device anti-vibration protected based on the historical relic of advanced technology to realize.The dissimilar shock-proof devices such as roller type, roller type, ball type, slide block type, friction pendulum are researched and developed, the dissimilar shock insulation materials such as pneumatic spring, constant force spring, magnetite, marmem are applied, and make the DEVELOPMENT PROSPECT of antique vibration isolation device wide.But from the isolating affection of antique vibration isolation device, realize simple structure, little volume, low conduction be than (the response acceleration peak value of historical relic and the ratio of input-to-state stabilization acceleration peak value) and avoid vertically waving, and ensure the reliability of shock-proof device, durability is still an important problem.
Existing antique vibration isolation device is mostly based on horizontal seismic isolation, and vertical seismic element often accounts for critical role.From horizontal restoring force component angles, traditional spring needs vertical double-deck setting party can realize level arbitrarily to shock insulation.Then be easy to occur and that cause parts fly out problem excessive due to horizontal seismic force based on the curved surface roller of gravity restoring force or roller unit.From vertical restoring force component angles, traditional spring due to natural bow excessive and easily produce vertical buckling problem, and piece construction is complicated, occupies vertical direction spatial larger.Therefore, research and development are needed to manufacture easy, clear mechanism, successful multidimensional historical relic damping device.
Summary of the invention
Existing antique vibration isolation device is mostly based on horizontal seismic isolation, and vertical seismic element often accounts for critical role.From horizontal restoring force component angles, traditional spring needs vertical double-deck setting party can realize level arbitrarily to shock insulation.Then be easy to occur and that cause parts fly out problem excessive due to horizontal seismic force based on the curved surface roller of gravity restoring force or roller unit.From vertical restoring force component angles, traditional spring due to natural bow excessive and easily produce vertical buckling problem, and piece construction is complicated, occupies vertical direction spatial larger.Based on this, the present invention attempts to be solved the problem by the research and development of adjustable pendulum-type historical relic low frequency damping device.
For achieving the above object, the technological scheme that the present invention takes is a kind of adjustable pendulum-type historical relic low frequency damping device, comprises connecting rod, toughened glass case, anchor bolt, adjustable counterweight block, lower link, belleville spring, outer showcase; Wherein, described upper connecting rod one end and described outer showcase hinged, the described upper connecting rod the other end and described toughened glass case hinged; Described toughened glass case is placed the described anchor bolt of Cultural Relic Bureau and is fixed adjustable counterweight block; Described lower link one end and adjustable pouring weight hinged, the lower link the other end and described belleville spring hinged; Described outer showcase limits described belleville spring Horizontal displacement.
Described upper connecting rod and lower link, select lightweight and the high material of intensity, as metal-base composites; Upper length of connecting rod and lower link length ratio are greater than 2.
Described adjustable counterweight block, material selection lead alloy, zinc alloy, cast iron, described adjustable counterweight block length is wide identical with described toughened glass case, the described anchor bolt of described adjustable counterweight block is fixed on bottom described toughened glass case, can change quality size by changing described adjustable counterweight number of blocks.
Described toughened glass case uses full tempered glass, the built-in friction bedding of described toughened glass case.
Described belleville spring changes rigidity by changing reed quantity.
When shock insulation cultural relic cabinet is subject to geological process, belleville spring is subject to Tension and Compression, resists the geological process of vertical direction, toughened glass case and upper connecting rod and lower link hinged, and swing in the horizontal direction with low frequency, the geological process of opposing substantially horizontal, and then reach the object of shock insulation.
The present invention adopts single pendulum and puts vibrating isolation system principle in parallel, toughened glass case and mass-adjustable block quality and be m, toughened glass case upper end with long be L
1upper rod hinge connection, forms single pendulum, is referred to as just to put; Adjustable pouring weight lower end is by growing for L with one
2lower link hinged, lower link lower end and rigidity are K
sbelleville spring hinged, form fall pendulum.Single pendulum is connected in parallel by toughened glass case and adjustable pouring weight with putting, and bar is grown and compared L
r=L
1/ L
2, belleville spring initial compression amount is Δ L, and when system is in equilibrium position, system stiffness is:
If make K (0)=0,
When
Time, vibrating isolation system in the horizontal direction rigidity is 0, and vibrating isolation system reaches low frequency vibration isolation effect, along with L
rreduction, system have lower rigidity in larger scope apart from equinoctial point, can be applicable to the situation that extraneous vibration amplitude is larger.Along with K
sreduction, system have Low rigidity scope increase.By Rational choice L
rand K
svalue, make vibrating isolation system natural frequency enough low, reach the object of low frequency vibration isolation.
Compared with prior art, the present invention has following beneficial effect.
The present invention adopts single pendulum and puts vibrating isolation system principle in parallel, and whole device manufacture is easy, clear mechanism, anti seismic efficiency obvious, plays a very good protection to historical relic.
Accompanying drawing explanation
Fig. 1 is adjustable pendulum-type historical relic low frequency damping device schematic diagram.
Fig. 2 is adjustable pendulum-type historical relic low frequency damping device graphics.
Fig. 3 is adjustable pendulum-type historical relic low frequency damping device side view.
Fig. 4 is adjustable pouring weight planimetric map.
Fig. 5 is belleville spring side view.
In figure: 1, upper connecting rod, 2, toughened glass case, 3, adjustable counterweight block, 4, anchor bolt, 5, lower link, 6, belleville spring, 7, outer showcase.
Embodiment
As shown in Figure 1, upper connecting rod 1 one end and described outer showcase 7 hinged, upper connecting rod 1 the other end and toughened glass case 2 hinged; Fix adjustable counterweight block 3 with anchor bolt 4 bottom toughened glass case 2, lower link 5 one end and adjustable pouring weight 3 hinged, lower link 5 the other end and belleville spring 6 hinged, outer showcase 7 limits belleville spring 6 Horizontal displacement.
Upper connecting rod 1 adopts metal-base composites with lower link 5, ensures high-strength light characteristic.
Embodiment
Upper connecting rod 1 length is 1.5m, and lower link 5 length is 0.7m, and in guarantee, connecting rod 1 length and lower link 5 length ratio are greater than 2.Adjustable counterweight block 3, materials'use zinc alloy, the long 70cm of adjustable counterweight block 3, wide 50cm, thickness 1cm, quantity 2, quality are that 30kg adjustable counterweight block 34 anchor bolts are fixed on bottom toughened glass case 2.The long 70cm of toughened glass case 2, wide 50cm, high 80cm, use full tempered glass, the built-in friction bedding of toughened glass case 2, ensures there is enough frictional force between historical relic and glass box.Belleville spring 6 rigidity is 20N/mm.
Claims (6)
1. an adjustable pendulum-type historical relic low frequency damping device, is characterized in that: comprise connecting rod (1), toughened glass case (2), anchor bolt (3), adjustable counterweight block (4), lower link (5), belleville spring (6), outer showcase (7); Wherein, described upper connecting rod (1) one end and described outer showcase (7) hinged, upper connecting rod (1) the other end and toughened glass case (2) hinged; Described toughened glass case (2) places the fixing adjustable counterweight block (4) of Cultural Relic Bureau's described anchor bolt (3); Described lower link (5) one end and adjustable counterweight block (4) hinged, lower link (5) the other end and described belleville spring (6) hinged; Described outer showcase (7) limits described belleville spring (6) Horizontal displacement.
2. one according to claim 1 adjustable pendulum-type historical relic low frequency damping device, is characterized in that: described upper connecting rod (1) and lower link (5) are for lightweight and the high metal-base composites of intensity; Upper connecting rod (1) length and lower link (5) length ratio are greater than 2.
3. one according to claim 1 adjustable pendulum-type historical relic low frequency damping device, is characterized in that: described adjustable counterweight block (4), material selection lead alloy, zinc alloy, cast iron; Described adjustable counterweight block (4) length and width are identical with described toughened glass case (2); Described adjustable counterweight block (4) is fixed on described toughened glass case (2) bottom with described anchor bolt (3), can change quality size by changing described adjustable counterweight block (4) quantity.
4. one according to claim 1 adjustable pendulum-type historical relic low frequency damping device, is characterized in that: described toughened glass case (2) uses full tempered glass, the built-in friction bedding of described toughened glass case (2).
5. one according to claim 1 adjustable pendulum-type historical relic low frequency damping device, is characterized in that: described belleville spring (6) is by changing reed quantity to change rigidity.
6. one according to claim 1 adjustable pendulum-type historical relic low frequency damping device, it is characterized in that: when shock insulation cultural relic cabinet is subject to geological process, belleville spring (6) is subject to Tension and Compression, resist the geological process of vertical direction, toughened glass case (2) and upper connecting rod (1) and lower link (5) hinged, and swing in the horizontal direction with low frequency, the geological process of opposing substantially horizontal, and then reach the object of shock insulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410087581.7A CN103821863B (en) | 2014-03-09 | 2014-03-09 | A kind of adjustable pendulum-type multidimensional low frequency historical relic damping device |
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|---|---|---|---|
| CN201410087581.7A CN103821863B (en) | 2014-03-09 | 2014-03-09 | A kind of adjustable pendulum-type multidimensional low frequency historical relic damping device |
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| CN103821863A CN103821863A (en) | 2014-05-28 |
| CN103821863B true CN103821863B (en) | 2015-10-28 |
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| CN201410087581.7A Expired - Fee Related CN103821863B (en) | 2014-03-09 | 2014-03-09 | A kind of adjustable pendulum-type multidimensional low frequency historical relic damping device |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100674B (en) * | 2014-07-09 | 2016-02-17 | 中国航空规划设计研究总院有限公司 | A kind of shock prevention method of floating historical relic |
| CN104643741B (en) * | 2015-01-13 | 2017-07-28 | 东南大学 | A kind of suspension type is floating to put thing three-dimensional isolation device |
| CN106594170B (en) * | 2016-11-08 | 2018-08-14 | 浙江大学 | It is a kind of to lead the passive floating control method for being laid flat platform of mixing damping historical relic damping |
| CN106763410B (en) * | 2016-11-22 | 2019-01-25 | 常州大学 | A kind of ultralow frequency resonance free metal isolator |
| CN107218342B (en) * | 2017-06-15 | 2019-12-06 | 华中科技大学 | Suspension type composite vibration isolation swing table |
| CN108036808A (en) * | 2017-12-04 | 2018-05-15 | 兰州空间技术物理研究所 | A kind of high-precision tilt angle Control experiment platform |
| CN111608453A (en) * | 2019-02-22 | 2020-09-01 | 同济大学 | Installation method of seismic mitigation and isolation system |
| CN110419902A (en) * | 2019-08-29 | 2019-11-08 | 南京工业大学 | Anti-seismic supporting device for floating articles |
| CN111022545B (en) * | 2019-12-06 | 2021-08-13 | 中国民航大学 | Cylinder type high static low dynamic low frequency passive vibration isolator |
| CN110985579B (en) * | 2019-12-31 | 2024-05-07 | 东南大学 | High-damping self-limiting shock isolation device and use method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101033628A (en) * | 2007-01-05 | 2007-09-12 | 北京工业大学 | Speed regulation type tuning mass damper |
| CN201782395U (en) * | 2010-09-21 | 2011-04-06 | 华中科技大学 | Automatic relic-protecting device |
| CN202563764U (en) * | 2012-05-05 | 2012-11-28 | 陈彪泉 | Simple magnetic damping pendulum |
| CN103243831A (en) * | 2013-05-10 | 2013-08-14 | 北京工业大学 | Compound type omni-directional tuning and shock-absorption damping pendulum |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU1401997A (en) * | 1996-01-12 | 1997-08-01 | Penguin Engineering Limited | Energy absorber |
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2014
- 2014-03-09 CN CN201410087581.7A patent/CN103821863B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101033628A (en) * | 2007-01-05 | 2007-09-12 | 北京工业大学 | Speed regulation type tuning mass damper |
| CN201782395U (en) * | 2010-09-21 | 2011-04-06 | 华中科技大学 | Automatic relic-protecting device |
| CN202563764U (en) * | 2012-05-05 | 2012-11-28 | 陈彪泉 | Simple magnetic damping pendulum |
| CN103243831A (en) * | 2013-05-10 | 2013-08-14 | 北京工业大学 | Compound type omni-directional tuning and shock-absorption damping pendulum |
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Effective date of registration: 20170706 Address after: 510000 Guangdong Province, Guangzhou high tech Industrial Development Zone, No. 233 science road 231 floor B1B2 building one layer, two layer, three layer, four layer Patentee after: BOAO ZONGHENG NETWORK TECHNOLOGY Co.,Ltd. Address before: 100124 Chaoyang District, Beijing Ping Park, No. 100 Patentee before: Beijing University of Technology |
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| CB03 | Change of inventor or designer information |
Inventor after: He Haoxiang Inventor after: Sun Yue Inventor after: Li Ruifeng Inventor after: Chen Kui Inventor after: Lv Yongwei Inventor before: He Haoxiang Inventor before: Li Ruifeng Inventor before: Chen Kui Inventor before: Lv Yongwei |
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Effective date of registration: 20170710 Address after: 230009 experimentation area, scientific and technological innovation, public service and application technology research and development center, No. 860, Wangjiang West Road, Hefei hi tech Zone, Anhui, 1210, China Patentee after: ANHUI ZHONGBO INTELLIGENT TECHNOLOGY Co.,Ltd. Address before: 510000 Guangdong Province, Guangzhou high tech Industrial Development Zone, No. 233 science road 231 floor B1B2 building one layer, two layer, three layer, four layer Patentee before: BOAO ZONGHENG NETWORK TECHNOLOGY Co.,Ltd. |
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