CN104372871A - Rigidity-variable oil damper - Google Patents
Rigidity-variable oil damper Download PDFInfo
- Publication number
- CN104372871A CN104372871A CN201410656399.9A CN201410656399A CN104372871A CN 104372871 A CN104372871 A CN 104372871A CN 201410656399 A CN201410656399 A CN 201410656399A CN 104372871 A CN104372871 A CN 104372871A
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- outer sleeve
- piston rod
- oil
- end outer
- piston
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Abstract
The invention relates to a rigidity-variable oil damper. The rigidity-variable oil damper comprises an oil cylinder, a pre-stretching end outer sleeve, a pre-pressing end outer sleeve, a piston rod, an oil piston, a connection base, a pre-pressing spring, a pre-stretching spring, a hollow pipe and a baffle. One end of the oil cylinder is located in the pre-stretching end outer sleeve, and the other end of the oil cylinder is located in the pre-pressing end outer sleeve. The two ends of the pre-stretching spring are fixed to the piston rod and the pre-stretching end outer sleeve respectively. The oil piston is fixedly arranged on the piston rod and arranged in the oil cylinder. The upper end and the lower end of the oil piston are provided with damping holes parallel to the piston rod respectively. Oil leakage prevention seal rings are arranged at openings in the two ends of the oil cylinder. The two ends of the pre-stretching spring are fixed to the baffle and the oil cylinder respectively. The piston rod penetrates through the portion between the pre-pressing spring and the baffle. A second anti-collision rubber cushion layer is arranged between the pres-pressing end outer sleeve and the baffle. The rigidity-variable oil damper achieves the vibration control aim of providing additional rigidity for a vibration isolation layer.
Description
Technical field
The present invention relates to a kind of variation rigidity oil damper, belong to field of civil engineering.
Background technology
The extensive use of seismic isolation technology reduces the cost of structural seismic.But for the Important building that some higher grade of setting up defences, because structure itself can resist larger earthquake effect, under utilization seismic isolation technology ensures that under large shake, structure does not suffer the prerequisite of fatal damage, to the performance requirement of little shake, middle shake also within limit of consideration.So combinationally use damper and rubber earthquake isolation support in Seismic Isolation of Isolation Layer, larger initial stiffness can be provided for Seismic Isolation of Isolation Layer, namely only resist geological process by structure itself when little shake, middle shake, during large shake, shock isolating pedestal and damper consume energy jointly, ensure the intact of superstructure.Institute thinks that damper provides initial stiffness tool to have very important significance, and existing damper cannot meet the demands.
Summary of the invention
For the defect that prior art exists, the object of the present invention is to provide a kind of variation rigidity oil damper, make structure when small earthquakes for shock isolating pedestal provides larger initial stiffness, and energy and shock isolating pedestal consume energy jointly when large shake.
In order to achieve the above object, to solve the scheme that its technical problem adopts as follows in the present invention:
A kind of variation rigidity oil damper, comprises cylinder tube, pre-pull end outer sleeve, pre-pressure side outer sleeve, piston rod, oily piston, Connection Block, pre-compressed spring, prestretching spring, hollow section and baffle plate; Described cylinder tube one end is positioned at pre-pull end outer sleeve, and one end is positioned at pre-pressure side outer sleeve, and described prestretching both ends of the spring is separately fixed on piston rod and pre-pull end outer sleeve; Described oily piston fixed installation is placed in cylinder tube on the piston rod, and the upper and lower side of oily piston is respectively equipped with the damping hole parallel with piston rod; Oil-leakage-prevention sealing ring is provided with at the two ends tapping of cylinder tube; Described pre-compressed spring two ends are separately fixed on baffle plate and cylinder tube, described piston rod passes in the middle of pre-compressed spring and baffle plate, and be connected with Connection Block through after hollow section, the first anticollision rubber spacer is provided with, on pre-pressure side outer sleeve and be provided with the second anticollision rubber spacer between baffle plate on hollow section and between Connection Block.
Compared with prior art, the present invention has the following advantages:
1, the present invention can meet vibration isolation target Seismic Isolation of Isolation Layer being provided to additional stiffness.
2, when pre-compressed spring moves in outer sleeve, provide initial stiffness by pre-pressure of the spring, when prestretching spring moves in inner sleeve, provide initial stiffness by spring pretension, thus provide additional initial stiffness for Seismic Isolation of Isolation Layer.
3, during large shake, oil damper and shock isolating pedestal consume energy jointly, reduce the infringement of superstructure.
Accompanying drawing explanation
Fig. 1 is variation rigidity oil damper structural representation.
Fig. 2 is pre-pull end outer sleeve axonometric drawing.
Fig. 3 is pre-pressure side outer sleeve axonometric drawing.
Fig. 4 is piston rod and oily piston connection diagram.
Fig. 5 is the connection diagram between piston rod and hollow section.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.
As shown in Figures 1 to 5, a kind of variation rigidity oil damper, comprises cylinder tube 1, pre-pull end outer sleeve 2, pre-pressure side outer sleeve 3, piston rod 4, oily piston 5, Connection Block 6, pre-compressed spring 7, prestretching spring 8, hollow section 9 and baffle plate 10; Described cylinder tube 1 one end is positioned at pre-pull end outer sleeve 2, and one end is positioned at pre-pressure side outer sleeve 3, and described prestretching spring 8 two ends are separately fixed on piston rod 4 and pre-pull end outer sleeve 2; Described oily piston 5 is fixedly mounted on piston rod 4 and is placed in cylinder tube 1, and the upper and lower side of oily piston 5 is respectively equipped with the damping hole 12 parallel with piston rod 4; Oil-leakage-prevention sealing ring 11 is provided with at the two ends tapping of cylinder tube 1; Described pre-compressed spring 7 two ends are separately fixed on baffle plate 10 and cylinder tube 1, described piston rod 4 passes in the middle of pre-compressed spring 7 and baffle plate 10, and be connected with Connection Block 6 through after hollow section 9, be provided with the first anticollision rubber spacer 13 on hollow section 9 and between Connection Block 6, on pre-pressure side outer sleeve 3 and between baffle plate 10, be provided with the second anticollision rubber spacer 14.
Prestretching spring 8 produces pretension, and during piston rod 4 under tension, the pretension of prestretching spring 8 provides initial extensional rigidity, and ensure that piston rod 4 is static, damper does not provide damping force.Pre-compressed spring 7 produces precompression, and during Connection Block 6 pressurized, pressure reaches baffle plate 10 by hollow section 9 and reaches pre-compressed spring 7 again, and pre-compressed spring 7 provides corresponding initial compressional stiffness.When drawing (pressure) power to exceed spring prestretching (pressure) power, there is relative motion in piston rod 4 and oily piston 5, and cylinder tube 1 internal damping liquid produces damping force by damping hole 12.
Claims (1)
1. a variation rigidity oil damper, it is characterized in that, comprise cylinder tube (1), pre-pull end outer sleeve (2), pre-pressure side outer sleeve (3), piston rod (4), oily piston (5), Connection Block (6), pre-compressed spring (7), prestretching spring (8), hollow section (9) and baffle plate (10); Described cylinder tube (1) one end is positioned at pre-pull end outer sleeve (2), and one end is positioned at pre-pressure side outer sleeve (3), and described prestretching spring (8) two ends are separately fixed on piston rod (4) and pre-pull end outer sleeve (2); Described oily piston (5) is fixedly mounted on piston rod (4) and is placed in cylinder tube (1), and the upper and lower side of oily piston (5) is respectively equipped with the damping hole (12) parallel with piston rod (4); Oil-leakage-prevention sealing ring (11) is provided with at the two ends tapping of cylinder tube (1); Described pre-compressed spring (7) two ends are separately fixed on baffle plate (10) and cylinder tube (1), described piston rod (4) passes in the middle of pre-compressed spring (7) and baffle plate (10), and be connected with Connection Block (6) afterwards through hollow section (9), above and between Connection Block (6) be provided with the first anticollision rubber spacer (13) at hollow section (9), above and between baffle plate (10) be provided with the second anticollision rubber spacer (14) pre-pressure side outer sleeve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410656399.9A CN104372871A (en) | 2014-11-18 | 2014-11-18 | Rigidity-variable oil damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410656399.9A CN104372871A (en) | 2014-11-18 | 2014-11-18 | Rigidity-variable oil damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104372871A true CN104372871A (en) | 2015-02-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410656399.9A Pending CN104372871A (en) | 2014-11-18 | 2014-11-18 | Rigidity-variable oil damper |
Country Status (1)
| Country | Link |
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| CN (1) | CN104372871A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806692A (en) * | 2015-04-20 | 2015-07-29 | 天津大学仁爱学院 | Self-reset oil damper |
| CN104986077A (en) * | 2015-06-29 | 2015-10-21 | 苏州中航中振汽车饰件有限公司 | Weight distinguishing type car seat suspension |
| CN106121076A (en) * | 2016-06-24 | 2016-11-16 | 马鞍山市秋枫工程塑料异型材料制造有限责任公司 | A kind of skyscraper shock-damping structure and method of construction thereof |
| CN106223507A (en) * | 2016-07-27 | 2016-12-14 | 同济大学 | A kind of high-performance supporting member based on Self-resetting power consumption |
| CN106885103A (en) * | 2017-02-08 | 2017-06-23 | 王杨 | A kind of coal petrography transport arrangement device |
| CN106969088A (en) * | 2017-04-12 | 2017-07-21 | 上海大学 | A kind of isolation mounting for taking into account height frequency vibration |
| CN107366709A (en) * | 2017-08-30 | 2017-11-21 | 珠海中建兴业绿色建筑设计研究院有限公司 | A kind of Self-resetting tension and compression damper of variation rigidity |
| CN107906160A (en) * | 2017-12-13 | 2018-04-13 | 中铁二院工程集团有限责任公司 | A kind of novel rod-type viscous damper |
| CN108756007A (en) * | 2018-06-28 | 2018-11-06 | 云南震安减震科技股份有限公司 | A kind of combined multifunctional fluid linking damper |
| CN110106778A (en) * | 2019-06-18 | 2019-08-09 | 重庆三峡学院 | A kind of area bridge structure Fang Qu energy dissipation brace device |
| CN110644642A (en) * | 2019-10-09 | 2020-01-03 | 广州大学 | Novel torsion oil damping device |
| CN110761431A (en) * | 2019-10-29 | 2020-02-07 | 北京交通大学 | Combined shock-absorbing damper with self-resetting function |
| CN110847406A (en) * | 2019-11-26 | 2020-02-28 | 西安建筑科技大学 | Replaceable novel corrugated viscous spring combined mild steel damper |
| CN113152972A (en) * | 2020-12-12 | 2021-07-23 | 北京工业大学 | Prestress variable-rigidity three-dimensional shock isolation support |
| CN113445802A (en) * | 2020-07-20 | 2021-09-28 | 长江师范学院 | Shock absorption and energy dissipation method of shock absorption device for building earthquake-resistant joint |
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| CN103758246A (en) * | 2014-01-25 | 2014-04-30 | 广州大学 | Novel variable damping oil damper device |
| CN203701324U (en) * | 2014-01-25 | 2014-07-09 | 广州大学 | Novel damping-variable oil damper device |
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| JP2011038323A (en) * | 2009-08-11 | 2011-02-24 | Ihi Infrastructure Systems Co Ltd | Sound isolation supporting device for active mass damper |
| CN102127937A (en) * | 2010-01-18 | 2011-07-20 | 柳州克雷拉减振器有限公司 | Vibration damper for building |
| CN102108743A (en) * | 2010-09-29 | 2011-06-29 | 中国电力科学研究院 | Limit-type transmission tower vibration damper |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806692B (en) * | 2015-04-20 | 2017-01-11 | 天津大学仁爱学院 | Self-reset oil damper |
| CN104806692A (en) * | 2015-04-20 | 2015-07-29 | 天津大学仁爱学院 | Self-reset oil damper |
| CN104986077A (en) * | 2015-06-29 | 2015-10-21 | 苏州中航中振汽车饰件有限公司 | Weight distinguishing type car seat suspension |
| CN106121076A (en) * | 2016-06-24 | 2016-11-16 | 马鞍山市秋枫工程塑料异型材料制造有限责任公司 | A kind of skyscraper shock-damping structure and method of construction thereof |
| CN106223507A (en) * | 2016-07-27 | 2016-12-14 | 同济大学 | A kind of high-performance supporting member based on Self-resetting power consumption |
| CN106223507B (en) * | 2016-07-27 | 2018-10-26 | 同济大学 | A kind of high-performance supporting member based on Self-resetting energy consumption |
| CN106885103A (en) * | 2017-02-08 | 2017-06-23 | 王杨 | A kind of coal petrography transport arrangement device |
| CN106969088A (en) * | 2017-04-12 | 2017-07-21 | 上海大学 | A kind of isolation mounting for taking into account height frequency vibration |
| CN107366709A (en) * | 2017-08-30 | 2017-11-21 | 珠海中建兴业绿色建筑设计研究院有限公司 | A kind of Self-resetting tension and compression damper of variation rigidity |
| CN107906160B (en) * | 2017-12-13 | 2023-09-08 | 中铁二院工程集团有限责任公司 | Novel rod-type viscous damper |
| CN107906160A (en) * | 2017-12-13 | 2018-04-13 | 中铁二院工程集团有限责任公司 | A kind of novel rod-type viscous damper |
| CN108756007A (en) * | 2018-06-28 | 2018-11-06 | 云南震安减震科技股份有限公司 | A kind of combined multifunctional fluid linking damper |
| CN108756007B (en) * | 2018-06-28 | 2024-02-02 | 震安科技股份有限公司 | Combined type multifunctional viscous damper |
| CN110106778A (en) * | 2019-06-18 | 2019-08-09 | 重庆三峡学院 | A kind of area bridge structure Fang Qu energy dissipation brace device |
| CN110106778B (en) * | 2019-06-18 | 2023-11-03 | 重庆三峡学院 | Bridge structure prevents district power consumption strutting arrangement that bends |
| CN110644642A (en) * | 2019-10-09 | 2020-01-03 | 广州大学 | Novel torsion oil damping device |
| CN110761431A (en) * | 2019-10-29 | 2020-02-07 | 北京交通大学 | Combined shock-absorbing damper with self-resetting function |
| CN110847406A (en) * | 2019-11-26 | 2020-02-28 | 西安建筑科技大学 | Replaceable novel corrugated viscous spring combined mild steel damper |
| CN110847406B (en) * | 2019-11-26 | 2021-05-14 | 西安建筑科技大学 | Removable ripple viscous spring combination mild steel attenuator |
| CN113445802A (en) * | 2020-07-20 | 2021-09-28 | 长江师范学院 | Shock absorption and energy dissipation method of shock absorption device for building earthquake-resistant joint |
| CN113152972A (en) * | 2020-12-12 | 2021-07-23 | 北京工业大学 | Prestress variable-rigidity three-dimensional shock isolation support |
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Application publication date: 20150225 |