CN112682457A - Vibration isolation/vibration support - Google Patents
Vibration isolation/vibration support Download PDFInfo
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- CN112682457A CN112682457A CN202110019084.3A CN202110019084A CN112682457A CN 112682457 A CN112682457 A CN 112682457A CN 202110019084 A CN202110019084 A CN 202110019084A CN 112682457 A CN112682457 A CN 112682457A
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- cylinder piston
- sliding block
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- cylinder body
- steel spring
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Abstract
The invention relates to a vibration isolation/shock support which comprises a middle cover plate, wherein a cylinder body is formed in the middle of the middle cover plate, and an oil cylinder body and a steel spring cylinder body are formed in the middle cover plate around the cylinder body; inert gas is filled in the cylinder body of the cylinder, a cylinder piston is arranged in the cylinder body, the cylinder piston is fixedly connected with one end of a cylinder piston rod, and the other end of the cylinder piston rod is fixedly connected with a top cover plate; the cylinder body of the oil cylinder is filled with hydraulic oil, an oil cylinder piston is arranged in the oil cylinder body, the oil cylinder piston is fixedly connected with one end of an oil cylinder piston rod, and the other end of the oil cylinder piston rod is fixedly connected with a top cover plate; a steel spring cylinder piston is arranged in the steel spring cylinder body, one surface of the steel spring cylinder piston is fixedly connected with one end of a steel spring cylinder piston rod, the other end of the steel spring cylinder piston rod is fixedly connected with a top cover plate, the other surface of the steel spring cylinder piston is fixedly connected with a steel spring, and the other end of the steel spring is fixedly connected with the bottom of the steel spring cylinder body; the invention has certain vibration isolation/vibration performance in both horizontal direction and vertical direction.
Description
Technical Field
The invention belongs to the technical field of vibration reduction and isolation tools for buildings, and particularly relates to a vibration isolation/shock support.
Background
Traditional triple friction vibration isolation support, including 1 upper portion apron, 2 middle part sliders, 1 inside slider and bottom base, the relative slip through upper portion apron, middle part slider, inside slider produces the vibration isolation effect, and the frictional resistance that its produced can reduce the structural response of horizontal direction.
The traditional triple friction vibration isolation support can effectively isolate the influence of vibration in the horizontal direction on the structure, and has the characteristics of stability, safety and the like. Although the horizontal vibration isolation effect of the traditional friction vibration isolation support is obvious, a vertical vibration isolation system is not considered, and along with the structure becoming lighter and thinner, the vertical vibration isolation is also a problem which needs to be solved.
Therefore, based on the problems, the vibration isolation/vibration isolation support which has good vibration isolation performance in the vertical direction and has certain vibration attenuation performance in the horizontal direction and the vertical direction has important practical significance.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a vibration isolation/vibration support which has good vibration isolation performance in the vertical direction and certain vibration attenuation performance in the horizontal direction and the vertical direction.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
a vibration isolation/shock support comprises a top cover plate, a middle cover plate, a bottom base and an embedded sliding block; the embedded sliding block is positioned between the middle cover plate and the bottom base, and a first friction surface and a second friction surface are respectively formed between the embedded sliding block and the middle cover plate as well as between the embedded sliding block and the bottom base;
an air cylinder body is formed in the middle of the middle cover plate, an oil cylinder body and a steel spring cylinder body are formed in the middle cover plate around the air cylinder body, and the oil cylinder body and the steel spring cylinder body are distributed at intervals along the circumferential direction; the cylinder body of the cylinder is filled with inert gas, a cylinder piston is arranged in the cylinder body, the cylinder piston is fixedly connected with one end of a cylinder piston rod, and the other end of the cylinder piston rod is fixedly connected with a top cover plate; the hydraulic oil cylinder body is filled with hydraulic oil, an oil cylinder piston is arranged in the oil cylinder body, the oil cylinder piston is fixedly connected with one end of an oil cylinder piston rod, and the other end of the oil cylinder piston rod is fixedly connected with a top cover plate; a steel spring cylinder piston is arranged in the steel spring cylinder body, one surface of the steel spring cylinder piston is fixedly connected with one end of a steel spring cylinder piston rod, the other end of the steel spring cylinder piston rod is fixedly connected with a top cover plate, the other surface of the steel spring cylinder piston is fixedly connected with a steel spring, and the other end of the steel spring is fixedly connected with the bottom of the steel spring cylinder body;
the oil cylinder piston is provided with a plurality of one-way valves and overflow valves, and the flow directions of the one-way valves are distributed towards the two sides of the oil cylinder piston.
Further, an oil cylinder attached cylinder is further arranged in the middle cover plate below the oil cylinder body, and the end part of the oil cylinder piston rod is located in the oil cylinder attached cylinder.
Furthermore, the embedded sliding block comprises a middle upper sliding block, an inner sliding block and a middle lower sliding block; the inner sliding block is positioned in the middle upper sliding block and the middle lower sliding block, and a third friction surface and a fourth friction surface are respectively formed between the inner sliding block and the middle upper sliding block as well as between the inner sliding block and the middle lower sliding block.
Furthermore, the first friction surface, the second friction surface, the third friction surface and the fourth friction surface are all arc surface structures protruding back to the inner sliding block.
Furthermore, the peripheries of the middle cover plate, the bottom base, the middle upper sliding block and the middle lower sliding block facing the inner sliding block side are all provided with convex retaining ring structures.
Furthermore, a sealing ring is fixedly arranged on the side wall of the cylinder piston, so that the cylinder piston is in sealing contact with the side wall of the cylinder body 9 during movement.
Furthermore, the cylinder piston rod and the cylinder piston rod penetrate through the middle cover plate and are in sealing contact with the middle cover plate.
Further, the inert gas in the cylinder body is nitrogen.
The invention has the advantages and positive effects that:
(1) the invention ensures that the building structure has good vibration isolation/vibration performance in the horizontal direction and the vertical direction, and can avoid the damage of the building structure under the action of seismic oscillation in the horizontal direction and the vertical direction;
(2) the vertical cylinder is arranged in the vertical direction, so that the vertical cylinder has a variable stiffness characteristic, the stiffness of the vertical cylinder is smaller during initial change, and the stiffness is obviously increased when the vertical cylinder is deformed greatly, so that the power requirement of the structure under the action of vertical earthquake motion is met;
(3) the oil cylinder is arranged in the vertical direction, generates damping force, can reduce the response of the structure in the vertical direction, and effectively reduces the damage of the structure in the vertical earthquake;
(4) the vibration isolation/vibration damping device is used for carrying out vibration isolation/vibration in the horizontal direction by the relative movement of the contact surfaces among the middle cover plate, the bottom base, the middle upper sliding block, the inner sliding block and the middle lower sliding block, so that frictional damping force is generated, the influence of the vibration in the horizontal direction can be effectively reduced, and the structural safety is improved.
Drawings
The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and examples, but it should be understood that these drawings are designed for illustrative purposes only and thus do not limit the scope of the present invention. Furthermore, unless otherwise indicated, the drawings are intended to be illustrative of the structural configurations described herein and are not necessarily drawn to scale.
FIG. 1 is a cross-sectional view of a vibration isolation mount according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the vibration isolation/damping mount according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;
Detailed Description
First, it should be noted that the specific structures, features, advantages, etc. of the present invention will be specifically described below by way of example, but all the descriptions are for illustrative purposes only and should not be construed as limiting the present invention in any way. Furthermore, any single feature described or implicit in any embodiment or any single feature shown or implicit in any drawing may still be combined or subtracted between any of the features (or equivalents thereof) to obtain still further embodiments of the invention that may not be directly mentioned herein. In addition, for the sake of simplicity, the same or similar features may be indicated in only one place in the same drawing.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The present invention will be described in detail with reference to fig. 1 to 3.
The vibration isolation/damping support provided by the embodiment comprises a top cover plate 13, a middle cover plate 4, a bottom base 1 and an embedded sliding block; the embedded sliding block is positioned between the middle cover plate 4 and the bottom base 1, and a first friction surface 2 and a second friction surface 15 are respectively formed between the embedded sliding block and the middle cover plate 4 and between the embedded sliding block and the bottom base 1;
an air cylinder body 9 is formed in the middle of the middle cover plate 4, an oil cylinder body 7 and a steel spring cylinder body 22 are formed in the middle cover plate 4 around the air cylinder body 9, and the oil cylinder body 7 and the steel spring cylinder body 22 are distributed at intervals along the circumferential direction; the cylinder body 9 is filled with inert gas, a cylinder piston 11 is arranged in the cylinder body, the cylinder piston 11 is fixedly connected with one end of a cylinder piston rod 12, and the other end of the cylinder piston rod 12 is fixedly connected with a top cover plate 13; the hydraulic oil cylinder body 7 is filled with hydraulic oil, an oil cylinder piston 6 is installed in the oil cylinder body, the oil cylinder piston 6 is fixedly connected with one end of an oil cylinder piston rod 14, and the other end of the oil cylinder piston rod 14 is fixedly connected with a top cover plate 13; a steel spring cylinder piston 19 is arranged in the steel spring cylinder body 22, one surface of the steel spring cylinder piston 19 is fixedly connected with one end of a steel spring cylinder piston rod 20, the other end of the steel spring cylinder piston rod 20 is fixedly connected with the top cover plate 13, the other surface of the steel spring cylinder piston is fixedly connected with a steel spring 18, and the other end of the steel spring is fixedly connected with the bottom of the steel spring cylinder body;
the oil cylinder piston is provided with a plurality of one-way valves 16 and overflow valves 21, and the flow directions of the one-way valves 16 are distributed towards the two sides of the oil cylinder piston; when the top cover plate 13 moves, the oil cylinder piston 6, the air cylinder piston 11 and the steel spring cylinder piston 19 are driven to move together, the check valve 16 on the oil cylinder piston 6 is opened, hydraulic oil viscous fluid flows back and forth on two sides of the oil cylinder piston 6 to generate damping force, and when the movement is violent, the overflow valve 21 is opened at the same time to ensure the safety of the oil cylinder piston;
an oil cylinder attached cylinder 5 is further arranged in the middle cover plate 4 below the oil cylinder body, and the end part of the oil cylinder piston rod is located in the oil cylinder attached cylinder, so that the motion space of the oil cylinder piston rod 14 is ensured, and the generation of the eccentricity is limited.
The embedded sliding block comprises a middle upper sliding block 201, an inner sliding block 3 and a middle lower sliding block 202; the inner slide block 3 is located in the middle upper slide block 201 and the middle lower slide block 202, and a third friction surface 17 and a fourth friction surface 23 are respectively formed between the inner slide block 3 and the middle upper slide block 201 and the middle lower slide block 202.
The first friction surface, the second friction surface, the third friction surface and the fourth friction surface are arc surface structures protruding back to the inner sliding block 3, the friction surfaces are sliding surfaces, and friction damping force is generated through mutual movement.
The peripheries of the middle cover plate 4, the bottom base 1, the middle upper sliding block 201 and the middle lower sliding block 202 facing the inner sliding block 3 are all provided with a convex retaining ring structure, for example, a retaining ring 24 on the periphery of the bottom base 1; the baffle ring structure can prevent the middle upper slide block 201, the inner slide block 3 and the middle lower slide block 202 from being separated; in addition, in this embodiment, it is also considered that the first friction surface, the second friction surface, the third friction surface, and the fourth friction surface are all fixed with a friction-resistant material, in this embodiment, the friction-resistant material may be a polytetrafluoroethylene material, or may be other materials, and those skilled in the art may select the friction-resistant material according to actual situations, and the friction-resistant material is not limited specifically herein.
And a sealing ring 10 is fixedly arranged on the side wall of the cylinder piston, so that the cylinder piston is in sealing contact with the side wall of the cylinder body 9 when moving.
The cylinder piston rod and the cylinder piston rod penetrate through the middle cover plate 4 and are in sealing contact with the middle cover plate 4, and the cylinder piston rod 14 is sealed with the middle cover plate 4 through a sealing ring 8; in the present embodiment, the inert gas in the cylinder block 9 is nitrogen.
Under the action of vertical static load, the cylinder or the cylinder and the steel spring jointly bear the upper load, the supporting force is N.P.A + k.Deltax, and P is the pressure difference of inert gases such as nitrogen and the like at two sides of the cylinder piston 11; a is the cross-sectional area of the cylinder body 9; k is the linear stiffness of the steel spring 18; Δ x is the amount of deformation of the steel spring 18.
Under the action of vertical dynamic load, the cylinder, the steel spring and the oil cylinder jointly bear the action of dynamic load, and the damping force is F.P.A + k.delta x + Cd·μ，CdMu is the speed which is the damping coefficient of the oil cylinder and can generate motion resistance to reduce the structural response.
The vibration isolation/shock absorption is mainly performed by the relative motion of the contact surfaces among the middle cover plate 4, the bottom base 1, the middle upper sliding block 201, the inner sliding block 3 and the middle lower sliding block 202 in the horizontal direction.
The present invention has been described in detail with reference to the above examples, but the description is only for the preferred examples of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (8)
1. An isolation/vibration mount characterized by: comprises a top cover plate, a middle cover plate, a bottom base and an embedded sliding block; the embedded sliding block is positioned between the middle cover plate and the bottom base, and a first friction surface and a second friction surface are respectively formed between the embedded sliding block and the middle cover plate as well as between the embedded sliding block and the bottom base;
an air cylinder body is formed in the middle of the middle cover plate, an oil cylinder body and a steel spring cylinder body are formed in the middle cover plate around the air cylinder body, and the oil cylinder body and the steel spring cylinder body are distributed at intervals along the circumferential direction; the cylinder body of the cylinder is filled with inert gas, a cylinder piston is arranged in the cylinder body, the cylinder piston is fixedly connected with one end of a cylinder piston rod, and the other end of the cylinder piston rod is fixedly connected with a top cover plate; the hydraulic oil cylinder body is filled with hydraulic oil, an oil cylinder piston is arranged in the oil cylinder body, the oil cylinder piston is fixedly connected with one end of an oil cylinder piston rod, and the other end of the oil cylinder piston rod is fixedly connected with a top cover plate; a steel spring cylinder piston is arranged in the steel spring cylinder body, one surface of the steel spring cylinder piston is fixedly connected with one end of a steel spring cylinder piston rod, the other end of the steel spring cylinder piston rod is fixedly connected with a top cover plate, the other surface of the steel spring cylinder piston is fixedly connected with a steel spring, and the other end of the steel spring is fixedly connected with the bottom of the steel spring cylinder body;
the oil cylinder piston is provided with a plurality of one-way valves and overflow valves, and the flow directions of the one-way valves are distributed towards the two sides of the oil cylinder piston.
2. The vibration isolation/damping mount according to claim 1, wherein: an oil cylinder attached cylinder is further arranged in the middle cover plate below the oil cylinder body, and the end portion of the oil cylinder piston rod is located in the oil cylinder attached cylinder.
3. The vibration isolation/damping mount according to claim 1, wherein: the embedded sliding block comprises a middle upper sliding block, an inner sliding block and a middle lower sliding block; the inner sliding block is positioned in the middle upper sliding block and the middle lower sliding block, and a third friction surface and a fourth friction surface are respectively formed between the inner sliding block and the middle upper sliding block as well as between the inner sliding block and the middle lower sliding block.
4. The vibration isolation/damping mount according to claim 3, wherein: the first friction surface, the second friction surface, the third friction surface and the fourth friction surface are all arc surface structures protruding back to the inner sliding block.
5. The vibration isolation/damping mount according to claim 3, wherein: the peripheries of the middle cover plate, the bottom base, the middle upper sliding block and the middle lower sliding block facing the inner sliding block side are all provided with convex retaining ring structures.
6. The vibration isolation/damping mount according to claim 1, wherein: and a sealing ring is fixedly arranged on the side wall of the cylinder piston, so that the cylinder piston is in sealing contact with the side wall of the cylinder body 9 when moving.
7. The vibration isolation/damping mount according to claim 1, wherein: and the cylinder piston rod and the oil cylinder piston rod penetrate through the middle cover plate and are in sealing contact with the middle cover plate.
8. The vibration isolation/damping mount according to claim 1, wherein: the inert gas in the cylinder body is nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110019084.3A CN112682457A (en) | 2021-01-07 | 2021-01-07 | Vibration isolation/vibration support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110019084.3A CN112682457A (en) | 2021-01-07 | 2021-01-07 | Vibration isolation/vibration support |
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| Publication Number | Publication Date |
|---|---|
| CN112682457A true CN112682457A (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110019084.3A Pending CN112682457A (en) | 2021-01-07 | 2021-01-07 | Vibration isolation/vibration support |
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| CN (1) | CN112682457A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09217785A (en) * | 1996-02-15 | 1997-08-19 | Nitta Ind Corp | Base isolation system for vertical vibration |
| JPH09256673A (en) * | 1996-03-19 | 1997-09-30 | Haujingu Tamura:Kk | Base isolation device for structure |
| CN1702248A (en) * | 2005-07-22 | 2005-11-30 | 北京工业大学 | Curvature variable self-reset and protection three-dimensional shock damping and insulation energy dissipating support |
| CN101029539A (en) * | 2007-04-06 | 2007-09-05 | 北京工业大学 | Vertical shock-absorbing stand with variable rigidity and damping |
| TW201107627A (en) * | 2009-08-24 | 2011-03-01 | Yu-Guang Lai | The sliding joint seismic isolation bearing, the vibration isolation method of its application, the vibration isolation structure of its application, the mass dampers of its application |
| CN203701324U (en) * | 2014-01-25 | 2014-07-09 | 广州大学 | Novel damping-variable oil damper device |
| CN205421588U (en) * | 2016-03-16 | 2016-08-03 | 程明喆 | Three -dimensional damping platform |
| CN107084223A (en) * | 2017-05-25 | 2017-08-22 | 天津大学 | A kind of variation rigidity hydraulic pressure three-dimensional isolation device and method |
| CN212001610U (en) * | 2020-01-14 | 2020-11-24 | 武汉工程大学 | Three-dimensional shock insulation support of area friction pendulum-type |
-
2021
- 2021-01-07 CN CN202110019084.3A patent/CN112682457A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09217785A (en) * | 1996-02-15 | 1997-08-19 | Nitta Ind Corp | Base isolation system for vertical vibration |
| JPH09256673A (en) * | 1996-03-19 | 1997-09-30 | Haujingu Tamura:Kk | Base isolation device for structure |
| CN1702248A (en) * | 2005-07-22 | 2005-11-30 | 北京工业大学 | Curvature variable self-reset and protection three-dimensional shock damping and insulation energy dissipating support |
| CN101029539A (en) * | 2007-04-06 | 2007-09-05 | 北京工业大学 | Vertical shock-absorbing stand with variable rigidity and damping |
| TW201107627A (en) * | 2009-08-24 | 2011-03-01 | Yu-Guang Lai | The sliding joint seismic isolation bearing, the vibration isolation method of its application, the vibration isolation structure of its application, the mass dampers of its application |
| CN203701324U (en) * | 2014-01-25 | 2014-07-09 | 广州大学 | Novel damping-variable oil damper device |
| CN205421588U (en) * | 2016-03-16 | 2016-08-03 | 程明喆 | Three -dimensional damping platform |
| CN107084223A (en) * | 2017-05-25 | 2017-08-22 | 天津大学 | A kind of variation rigidity hydraulic pressure three-dimensional isolation device and method |
| CN212001610U (en) * | 2020-01-14 | 2020-11-24 | 武汉工程大学 | Three-dimensional shock insulation support of area friction pendulum-type |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xu Fei Inventor after: Liu Xujia Inventor after: Zhang Huidong Inventor before: Liu Xujia Inventor before: Zhang Huidong |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210420 |