CN104763766A - Vibration reduction and isolation device with viscoelastic core mat - Google Patents
Vibration reduction and isolation device with viscoelastic core mat Download PDFInfo
- Publication number
- CN104763766A CN104763766A CN201510171114.7A CN201510171114A CN104763766A CN 104763766 A CN104763766 A CN 104763766A CN 201510171114 A CN201510171114 A CN 201510171114A CN 104763766 A CN104763766 A CN 104763766A
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- China
- Prior art keywords
- spring
- steel plate
- viscoelasticity
- sleeve
- core pad
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/40—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers consisting of a stack of similar elements separated by non-elastic intermediate layers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a vibration reduction and isolation device with a viscoelastic core mat. The vibration reduction and isolation device comprises a lower steel plate and an upper steel plate arranged oppositely and further comprises a sleeve located between the upper steel plate and lower steel plate, a spring located in the sleeve, and a viscoelastic core mat arranged in the spring, the lower steel plate is provided with a lower joint with external threads, the upper steel plate is provided with an upper joint with external threads, the spring is composed of spiral spring wires, the upper end of the spring is rotationally connected with the upper joint with external threads while the lower end of the spring is rotationally connected with the lower joint with external threads, the inner diameter of the sleeve is larger than the outer diameter of the spring and smaller than the sum of the outer diameter of the spring and the two times of the diameter of the spring wire, the lower end of the sleeve is fixed on the lower steel plate, and the upper end of the sleeve covers the joint between the spring and upper joint. According to the vibration reduction and isolation device, the sleeve structure is arranged outside the spring, and the sleeve structure is capable of effectively preventing the spring separating from the joint when vibrating.
Description
Technical field
The present invention relates to a kind of equipment for inhibiting of vibration being widely used in machinery, pipeline, platform and civil structure, especially relate to a kind of device can isolating simultaneously and reduce to vibrate.
Background technique
Nuisance vibration is extensively present in various mechanical structure, pipeline configuration, platform structure and civil structure etc., is the principal element causing fatigue of materials and even structure catastrophe, huge economic asset can be caused to lose even casualties.The force-mechanism of cognitive structure under dynamic loading and dynamic response exactly, and the research topic that reliable vibration suppression is a frontier nature is implemented to it.Structural vibration control is a kind of novel and effectively press down vibration means, namely utilizes vibration isolator or vibration damper isolation or consumes external excitation energy, alleviating the destruction of external excitation to main structure to reach.The isolation mounting of current developmental research has rubber vibration insulating pad, slippage isolation mounting etc., but rubber vibration insulating pad lacks damping energy dissipation ability and anti-pulling ability, though slippage isolation mounting has damping characteristic, but lack recovery characteristic and anti-pulling ability, the vibration damping equipment of developmental research has viscoelastic damper, and (damping capacity is larger, vibration quick disappearance), Effects of Viscous Fluid Damper, metal damper, frcition damper, marmem damper, magnetoelectricity rheological damper etc., these vibration damping equipments generally add is located at superstructure, do not bear vertical load, only dissipate for vibrational energy.Under a lot of occasion, (bearing, stage support etc. as pipeline) needs to subtract isolation mounting and should bear vertical load, can isolate multidirectional vibrational energy with dissipative structure again, and have good anti-pulling ability and recovery capacity.
Summary of the invention
Goal of the invention: technical problem to be solved by this invention is to provide and a kind ofly subtracts isolation mounting with viscoelasticity core pad, this device have simultaneously level to vertical vibration isolation and damping capacity, and there is good energy dissipation capacity and recovery capacity.
Summary of the invention: for solving the problems of the technologies described above, the technology used in the present invention means are:
A kind ofly subtract isolation mounting with viscoelasticity core pad, comprise the lower steel plate and upper steel plate that are oppositely arranged, also comprise the sleeve between described upper steel plate and lower steel plate, the spring being positioned at sleeve and the viscoelasticity core pad being placed in spring, described lower steel plate is provided with the externally threaded lower contact of band, described upper steel plate is provided with the externally threaded upper connection of band, described spring is made up of spiral helicine spring thread, the top and bottom of described spring spin with the externally threaded upper connection of band and lower contact respectively and are connected, the internal diameter of described sleeve is greater than the external diameter of spring and is less than spring outer diameter and 2 times of spring thread string diameter sums, described sleeve lower end is fixed on described lower steel plate, the upper end of described sleeve covers the joint of described spring and upper connection.
Wherein, described viscoelasticity core pad comprises multilayer and replaces the steel plate and viscoelastic material layer that connect successively, and described steel plate is connected by vulcanization crosslinking mode with viscoelastic material layer, wherein, described in every block, the thickness of steel plate is 1 ~ 2mm, and the thickness of described viscoelastic material layer is 1 ~ 10mm.
Wherein, described viscoelasticity core pad is connected by adhesive means with described upper connection and lower contact or is connected by vulcanization respectively.
Wherein, the perpendicular distance of described sleeve top and described upper steel plate is 1 ~ 500mm.
Beneficial effect: compared to prior art, of the present invention subtract isolation mounting have simultaneously level to vertical vibration isolation and damping capacity, and device has good energy dissipation capacity and recovery capacity, in addition, apparatus of the present invention are provided with tube-in-tube structure outside spring, tube-in-tube structure can effectively prevent spring from coming off from connecting head when vibrating, and simultaneously sleeve can't restraining spring and be positioned at the lateral displacement that spring viscoelasticity core pad produces due to transverse vibration; The present invention is simple and reasonable, easy for installation, can be widely used in the isostructural multi-direction vibration suppression of machinery, pipeline, platform and building, is especially applied in the vertical motion suppression of said structure.
Accompanying drawing explanation
Fig. 1 is the structural representation that band viscoelasticity core pad of the present invention subtracts isolation mounting;
Fig. 2 is the cross-sectional view of viscoelasticity core pad in apparatus of the present invention.
Embodiment
The present invention is illustrated further below in conjunction with the drawings and specific embodiments, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims limited range.
As shown in Figure 1 and 2, band viscoelasticity core pad of the present invention subtract isolation mounting, comprise the lower steel plate 1 and upper steel plate 2 that are oppositely arranged, also comprise the sleeve 3 between upper steel plate 1 and lower steel plate 2, the spring 4 being positioned at sleeve 3 and the viscoelasticity core pad 5(spring 4 being placed in spring 4 are coated on the outside of viscoelasticity core pad 4 and belong to coaxial placement with viscoelasticity core pad 5), lower steel plate 1 is provided with the externally threaded lower contact 6 of band, upper steel plate 2 is provided with the externally threaded upper connection 7 of band, spring 4 is made up of spiral helicine spring thread, the top and bottom of spring 4 spin with the externally threaded upper connection 7 of band and lower contact 6 respectively and are connected (spiral helicine spring thread embeds in the screw thread of upper connection 7 and lower contact 6 respectively), the internal diameter of sleeve 3 is greater than the external diameter of spring 4 and is less than or equal to external diameter and 2 times of spring thread string diameter sums of spring 4, sleeve 3 lower end is fixed on lower steel plate 1 by bolt arrangement 8, the upper end of sleeve 3 is positioned at the top, joint (height of sleeve 3 covers the joint of upper connection 7 and spring 4) of spring 4 and upper connection 7, sleeve 3 one aspect can reduce external environment to the corrosion of spring 4 and viscoelasticity core pad 5 and destruction, can also ensure to be connected firmly between spring 4 and connecting head 6 and 7, not easily come off when vibrating, in addition because the internal diameter of sleeve 3 is greater than the external diameter of spring 4, therefore sleeve 3 not restraining spring 4 produce certain lateral displacement when transverse vibration and isolate or dissipation transverse vibration energy.String diameter × external diameter × length × the pitch size of the spring 4 of such as apparatus of the present invention is 10mm × 120mm × 400mm × 40mm, the upper connection 7 used and lower contact 6 diameter are 120mm, and go out at upper and lower joint surface car that the degree of depth is 10mm, pitch is the screw thread of 40mm, spring 4 can be spun by screw thread with upper and lower joint be connected, and convenient disassembly; Apparatus of the present invention sleeve 3 internal diameter is 140 mm, such permission spring 4 and the viscoelasticity core pad 5 being positioned at spring 4 have the transverse vibrational displacement of 10mm, thus isolate and dissipate transverse vibration energy, can also effectively ensure to be wrapped on the outside thread of upper connection 7 and lower contact 6 by spring thread, and when there is radial loosening under Long-term Vibration or emergency case in spring 4, the restriction of sleeve 3 inwall can be subject to, thus ensure spring 4 can not be separated from upper connection 7 and lower contact 6.
Viscoelasticity core pad 5 steel plate 9 be parallel to each other by multilayer and the viscoelastic material layer 10 be coated on outside every block plate of apparatus of the present invention form, viscoelastic material layer 10 is wrapped in around steel plate 9, steel plate 9 can be protected not corrode by external environment, steel plate 9 and viscoelastic material layer 10 adopt High Temperature High Pressure vulcanization alternately to laminate connection successively, steel plate 9 and viscoelastic material layer 10 adopt such Placement can to ensure when device deforms, and they still can not produce together with compact siro spinning technology slides or tear, the every layer thickness of viscoelastic material layer 10 is generally 1 ~ 10mm, every layer of steel plate 9 thickness is generally 1 ~ 2mm, when device is under external action during pressurized, due to effect of contraction and the even power transmission of the inner steel plate of viscoelasticity core pad 59, thus avoid viscoelasticity core pad 5 local buckling occurs, subside and the inhomogeneous deformation such as distortion, improve compression bearing and the global stability of viscoelasticity core pad 5.
Viscoelasticity core pad 5 is placed in spring 4 and between upper connection 7 and lower contact 6, can be out of shape by the compression of viscoelasticity core pad 5, pressure pine, stretchings, shearing etc. when vibration occurs device and dissipate vibrational energy, according to real work occasion, viscoelasticity core pad 5 and upper connection 7 and lower contact 6 can select that nothing is connected, gluing connection or High Temperature High Pressure sulfuration connect; When device is in pressured state all the time, then viscoelasticity core pad 5 only just can be placed on spring inner, and now viscoelasticity core pad 5 is not all connected with upper connection 7 and lower contact 6; If device is based on pressurized, occasional produces less pulling capacity, and now viscoelasticity core pad 5 is connected with upper connection 7 and lower contact 6 respectively by adhesive means (as epoxy resin); If device is based on pressurized, occasional produces larger pulling capacity, and now viscoelasticity core pad 5 need be connected with upper connection 7 and lower contact 6 respectively by High Temperature High Pressure vulcanization crosslinking mode.Viscoelasticity core pad 5 and spring 4 cooperatively interact, and play the effect of Synergistic, and namely viscoelasticity core pad 5 is for improving the damping effect of device, and spring 4 is for improving device restoring force ability.On the one hand, when device vertical or horizontal direction vibrational excitation issues raw relative movement time, viscoelasticity core pad 5 is by reciprocal tension and compression or shear deformation thus dissipate vibrational energy, and therefore it can play damping effect; The rigidity of the ratio of rigidity agent structure of viscoelasticity core pad 5 and spring 4 is much lower, and therefore viscoelasticity core pad 5 and spring 4 can the transmission of separating vibration, thus play vibration isolation effect; On the other hand, the elastic nature that spring 4 and viscoelasticity core pad 5 have makes apparatus of the present invention have good restoring force.Cross-sectional diameter 1 ~ the 2mm less of the internal diameter of spring 4 of viscoelasticity core pad 5, both are coaxial is arranged, when device pressurized, viscoelasticity core pad 5 expands under pressure, radial direction is subject to the effect of contraction of spring 4, in three dimension stress state, thus the vertical compression bearing of viscoelasticity core pad 5 and energy dissipation capacity are promoted further; When device generation axial tension is out of shape, spring 4 can provide larger tension pull out force, protects viscoelasticity core pad 5 and does not destroy because of excessive pulling force.
The perpendicular distance of sleeve 3 top and upper steel plate 2 is 1 ~ 500mm, the perpendicular distance of sleeve 3 top and upper steel plate 2 can be determined according to actual vibration damping environment, and such spacing can either ensure that vertical Relative Vibration displacement occurs for upper steel plate 2, spring 4 and viscoelasticity core pad 5; When vertical motion displacement exceedes this spacing, upper steel plate 2 can contact with sleeve 3, and now sleeve 3 plays position-limiting action, and agent structure and vibration damping equipment all can not be destroyed because there is excessive distortion.
The viscoelastic material that in apparatus of the present invention, viscoelasticity core pad 5 adopts is viscoelastic material disclosed in application number 2012101499342, this viscoelastic material has excellent damping capacity, energy dissipation capacity and recovery capacity, therefore the viscoelasticity core pad 5 adopting this viscoelastic material to prepare can improve the damping effect of device greatly, makes device have good energy dissipation capacity and recovery capacity subtracting in vibration isolation process simultaneously.
Claims (4)
1. one kind subtracts isolation mounting with viscoelasticity core pad, it is characterized in that: comprise the lower steel plate and upper steel plate that are oppositely arranged, also comprise the sleeve between described upper steel plate and lower steel plate, the spring being positioned at sleeve and the viscoelasticity core pad being placed in spring, described lower steel plate is provided with the externally threaded lower contact of band, described upper steel plate is provided with the externally threaded upper connection of band, described spring is made up of spiral helicine spring thread, the top and bottom of described spring spin with the externally threaded upper connection of band and lower contact respectively and are connected, the internal diameter of described sleeve is greater than the external diameter of spring and is less than spring outer diameter and 2 times of spring thread string diameter sums, described sleeve lower end is fixed on described lower steel plate, the upper end of described sleeve covers the joint of described spring and upper connection.
2. band viscoelasticity core pad according to claim 1 subtract isolation mounting, it is characterized in that: described viscoelasticity core pad comprises multilayer and replaces the steel plate and viscoelastic material layer that connect successively, described steel plate is connected by vulcanization with viscoelastic material layer, wherein, described in every block, the thickness of steel plate is 1 ~ 2mm, and the thickness of described viscoelastic material layer is 1 ~ 10mm.
3. band viscoelasticity core pad according to claim 1 subtract isolation mounting, it is characterized in that: described viscoelasticity core pad is connected by adhesive means with described upper connection and lower contact or is connected by vulcanization respectively.
4. band viscoelasticity core pad according to claim 1 subtract isolation mounting, it is characterized in that: the perpendicular distance of described sleeve top and described upper steel plate is 1 ~ 500mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510171114.7A CN104763766A (en) | 2015-04-13 | 2015-04-13 | Vibration reduction and isolation device with viscoelastic core mat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510171114.7A CN104763766A (en) | 2015-04-13 | 2015-04-13 | Vibration reduction and isolation device with viscoelastic core mat |
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| Publication Number | Publication Date |
|---|---|
| CN104763766A true CN104763766A (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510171114.7A Pending CN104763766A (en) | 2015-04-13 | 2015-04-13 | Vibration reduction and isolation device with viscoelastic core mat |
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| CN (1) | CN104763766A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107161053A (en) * | 2017-06-12 | 2017-09-15 | 南京航空航天大学 | Automotive seat vibration absorber and method based on magnetic control shape memory alloy spring |
| CN108915151A (en) * | 2018-06-25 | 2018-11-30 | 重庆赛欧机电安装工程有限公司 | A kind of new type roof truss construction structure |
| CN109853772A (en) * | 2019-04-09 | 2019-06-07 | 安徽理工大学 | A kind of Self-resetting mild steel damper |
| CN113153949A (en) * | 2021-04-19 | 2021-07-23 | 中国人民解放军国防科技大学 | Nonlinear coupling resonance unit and nonlinear acoustic metamaterial cellular structure |
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| JP4049619B2 (en) * | 2002-06-19 | 2008-02-20 | 株式会社飯島建築事務所 | Vibration control device |
| CN201396393Y (en) * | 2009-03-19 | 2010-02-03 | 尹学军 | Spring damping vibration isolator |
| CN201835397U (en) * | 2010-08-26 | 2011-05-18 | 北京市建筑设计研究院 | TMD (tuned mass damper) device |
| CN103490360A (en) * | 2013-09-13 | 2014-01-01 | 国家电网公司 | Semi-solid single-point waving prevention device |
| CN204592114U (en) * | 2015-04-13 | 2015-08-26 | 徐赵东 | One subtracts isolation mounting |
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2015
- 2015-04-13 CN CN201510171114.7A patent/CN104763766A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH07127687A (en) * | 1993-11-01 | 1995-05-16 | Nisshin Mfg Kk | Vibration preventing device |
| JP3543758B2 (en) * | 2000-11-14 | 2004-07-21 | エヌイーシーアメニプランテクス株式会社 | Anti-vibration mount |
| JP4049619B2 (en) * | 2002-06-19 | 2008-02-20 | 株式会社飯島建築事務所 | Vibration control device |
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| CN204592114U (en) * | 2015-04-13 | 2015-08-26 | 徐赵东 | One subtracts isolation mounting |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107161053A (en) * | 2017-06-12 | 2017-09-15 | 南京航空航天大学 | Automotive seat vibration absorber and method based on magnetic control shape memory alloy spring |
| CN108915151A (en) * | 2018-06-25 | 2018-11-30 | 重庆赛欧机电安装工程有限公司 | A kind of new type roof truss construction structure |
| CN109853772A (en) * | 2019-04-09 | 2019-06-07 | 安徽理工大学 | A kind of Self-resetting mild steel damper |
| CN109853772B (en) * | 2019-04-09 | 2023-09-22 | 安徽理工大学 | Self-resetting mild steel damper |
| CN113153949A (en) * | 2021-04-19 | 2021-07-23 | 中国人民解放军国防科技大学 | Nonlinear coupling resonance unit and nonlinear acoustic metamaterial cellular structure |
| CN113153949B (en) * | 2021-04-19 | 2022-05-13 | 中国人民解放军国防科技大学 | Nonlinear coupling resonance unit and nonlinear acoustic metamaterial cellular structure |
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| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xu Zhaodong Inventor after: Huang Xinghuai Inventor after: Guo Yingqing Inventor before: Xu Zhaodong Inventor before: Huang Xinghuai Inventor before: Guo Yingqing Inventor before: Wang Xiudong |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: XU ZHAODONG HUANG XINGHUAI GUO YINGQING WANG XIUDONG TO: XU ZHAODONG HUANG XINGHUAI GUO YINGQING |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150708 |
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| RJ01 | Rejection of invention patent application after publication |