CN111335495B - Shock insulation damper - Google Patents
Shock insulation damper Download PDFInfo
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- CN111335495B CN111335495B CN202010173137.2A CN202010173137A CN111335495B CN 111335495 B CN111335495 B CN 111335495B CN 202010173137 A CN202010173137 A CN 202010173137A CN 111335495 B CN111335495 B CN 111335495B
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- inner cylinder
- cylinder
- rack
- connecting plate
- outer cylinder
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- 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
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
Abstract
The invention provides a shock insulation damper, and relates to the field of building shock insulation. The shock insulation damper comprises an inner cylinder, an outer cylinder and an elastic supporting piece, wherein the outer cylinder is movably sleeved outside the inner cylinder, one end of the inner cylinder is connected with a first connecting plate, the outer cylinder is provided with a second connecting plate, the elastic supporting piece is assembled inside the inner cylinder, and the elastic supporting piece is positioned between the first connecting plate and the second connecting plate; the lateral space is arranged between the inner barrel and the outer barrel, the transmission structure is arranged in the lateral space, an output rotating shaft of the transmission structure is perpendicular to the side wall of the outer barrel, a rotating wheel is arranged on the output rotating shaft, a magnet is arranged on the outer wall of the outer barrel, and an induction conductor is arranged on the corresponding side of the rotating wheel. When the outer cylinder body moves relative to the inner cylinder body, the outer cylinder body is converted into the rotational kinetic energy of the rotating wheel on the one hand; on the other hand, under the action of the fixed magnetic field and the electric eddy current, resistance for blocking the rotation of the induction conductor is generated, vibration energy is dissipated in a mode of combining rotational inertia and the electric eddy current, and the shock insulation effect and the reliability are better.
Description
Technical Field
The invention relates to the technical field of building shock insulation, in particular to a shock insulation damper.
Background
In building and bridge engineering, a vibration isolation damper is usually arranged to weaken vibration energy, effectively prevent serious vibration transmission between building structures and improve the vibration resistance of the whole building engineering.
The Chinese invention patent application with application publication number CN106703495A and application publication number 2017.05.24 discloses a frequency-adjustable tuned mass damper, and particularly discloses a tuned mass damper which comprises a horizontal plate, a vertical plate, a mass plate, a spring restraint device, a spiral spring, a rack, a bearing, a flywheel, a continuously variable transmission and a sliding support, wherein an upper horizontal plate, a lower horizontal plate and the vertical plate are tightly connected, the mass plate is connected to the rack, and the rack is arranged in the two sliding supports of the vertical plate and is guided; the gear is fixed on the stepless speed changer; the flywheel is mounted on the driven shaft of the continuously variable transmission, and the bearing of the transmission shaft is mounted in the vertical plate. When the structure is excited externally, energy input from the outside is accumulated in the spiral spring, so that the mass plate and the rack reciprocate, the energy is dissipated, and the finally moving rack converts the energy into kinetic energy of the flywheel through the continuously variable transmission.
The damper in the prior art only dissipates vibration energy by driving the flywheel to rotate, but has the problem of poor shock insulation effect and reliability when being applied to actual constructional engineering due to single dissipation form of vibration.
Disclosure of Invention
In order to solve the above problems, the present invention provides a seismic isolation damper to solve the problems of single dissipation form of the existing damper to the vibration energy and poor seismic isolation effect and reliability when applied to the actual building engineering.
The technical scheme of the shock insulation damper of the invention is as follows:
the shock insulation damper comprises an inner cylinder, an outer cylinder and an elastic supporting piece, wherein the outer cylinder is movably sleeved outside the inner cylinder, one end of the inner cylinder is connected with a first connecting plate, the end part, far away from the inner cylinder, of the outer cylinder is provided with a second connecting plate, the elastic supporting piece is assembled inside the inner cylinder, and the elastic supporting piece is located between the first connecting plate and the second connecting plate;
the improved drum is characterized in that a lateral interval is arranged between the inner drum and the outer drum, a transmission structure is arranged in the lateral interval, an output rotating shaft of the transmission structure is perpendicular to the side wall of the outer drum, a rotating wheel is arranged on the output rotating shaft, a magnet is arranged on the outer wall of the outer drum, and an induction conductor is arranged on the corresponding side of the rotating wheel.
Has the advantages that: the outer cylinder is movably sleeved outside the inner cylinder, when the outer cylinder moves relative to the inner cylinder, vibration energy borne by the outer cylinder and the inner cylinder is converted into rotation kinetic energy of the rotating wheel through the transmission structure, and the effect of the inertial container is achieved by utilizing the inertia of the rotating wheel, so that the vibration frequency of the vibration isolation damper is effectively reduced; in addition, the induction conductor on the rotating wheel cuts magnetic lines of force of a magnetic field generated by the magnet in the rotating process, corresponding eddy current is generated in the induction conductor according to the Faraday electromagnetic induction principle, resistance which hinders the rotation of the induction conductor is generated at the same time, and finally the resistance heat effect is converted into heat energy to be dissipated outwards, so that the vibration energy is dissipated in a mode of combining rotational inertia and eddy current damping; and the eddy current damping is speed-related, namely closely related to the cutting motion speed of the induction conductor, can generate a damping effect corresponding to the high-energy vibration, and has better shock insulation effect and reliability when being applied to practical building engineering.
Furthermore, the transmission structure is a rack-and-pinion transmission structure, the rack-and-pinion transmission structure comprises a rack and a gear which are meshed with each other, the rack is fixedly installed on the outer side wall of the inner cylinder body, the rack is parallel to the length direction of the inner cylinder body and extends, and the gear is installed on the output rotating shaft.
Furthermore, a one-way bearing for forward rotation transmission and reverse rotation no-load is arranged between the gear and the output rotating shaft.
Further, the inner cylinder and the outer cylinder are both rectangular cylinder structures, at least two groups of gear and rack transmission structures are arranged, and the at least two groups of gear and rack transmission structures are arranged in the lateral intervals in a central symmetry mode.
Furthermore, the cross section profile of the lateral intervals is in a shape of a Chinese character 'hui', and at least two groups of gear rack structures are uniformly distributed in the lateral intervals at intervals in the circumferential direction.
Further, the magnet is a permanent magnet.
Further, the sensing conductor is a copper thin plate, or the sensing conductor is an aluminum thin plate.
Furthermore, the elastic supporting piece is a cylindrical pressure spring, and the cylindrical pressure spring extends in a direction parallel to the length direction of the inner cylinder body.
Furthermore, the number of the cylindrical compression springs is at least three, and the at least three cylindrical compression springs are distributed in a central symmetry mode about the central axis of the inner cylinder body.
Furthermore, the lower side of the first connecting plate is also provided with a horizontal shock insulation support, and the cross section of the horizontal shock insulation support is smaller than or equal to the cross section outer contour of the inner cylinder.
Drawings
Fig. 1 is a schematic perspective view of a seismic isolation damper according to embodiment 1 of the present invention;
FIG. 2 is a perspective view of the shock damper of FIG. 1 (with the outer cylinder removed);
FIG. 3 is a vertical cross-sectional view of the shock damper of FIG. 1;
fig. 4 is a partial sectional view of the seismic isolation damper in embodiment 1 of the seismic isolation damper of the invention.
In the figure: 1-inner cylinder, 2-outer cylinder, 3-first connecting plate, 30-horizontal vibration isolation support, 4-second connecting plate, 5-cylindrical pressure spring, 6-rotating wheel, 60-induction conductor, 61-permanent magnet, 7-gear and rack transmission structure, 70-rack, 71-gear, 72-output rotating shaft and 73-one-way bearing.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In embodiment 1 of the seismic isolation damper of the present invention, as shown in fig. 1 to 4, the seismic isolation damper includes an inner cylinder 1, an outer cylinder 2, and an elastic support member, the outer cylinder 2 is movably sleeved outside the inner cylinder 1, wherein one end of the inner cylinder 1 is connected to a first connecting plate 3, an end portion of the outer cylinder 2 away from the inner cylinder 1 is provided with a second connecting plate 4, the elastic support member is assembled inside the inner cylinder 1, the elastic support member is located between the first connecting plate 3 and the second connecting plate 4, and a lateral space is provided between the inner cylinder 1 and the outer cylinder 2. In this embodiment, interior barrel 1 and outer barrel 2 are the rectangle tube structure, and is specific, and interior barrel 1 and outer barrel 2 are the square tube, and the laterally spaced cross sectional profile between interior barrel 1 and the outer barrel 2 is "back" font.
And a transmission structure is arranged in the lateral interval of the shape like the Chinese character 'hui', wherein the transmission structure is a rack-and-pinion transmission structure 7, the rack-and-pinion transmission structure 7 comprises a rack 70 and a gear 71 which are meshed with each other, the rack 70 is fixedly arranged on the outer side wall of the inner barrel 1, and the rack 70 extends in parallel to the length direction of the inner barrel 1. Moreover, the rack and pinion transmission structure 7 further includes an output rotating shaft 72, a rotating shaft hole is formed on the side wall of the outer cylinder 2, the output rotating shaft 72 is rotatably installed in the rotating shaft hole of the outer cylinder 2, and the output rotating shaft 72 is perpendicular to the side wall of the outer cylinder 2.
The gear 71 is fixed at one end of the output shaft 72 inside the outer cylinder 2, and the rotating wheel 6 is arranged at the end of the output shaft 72 far away from the outer cylinder 2. When the outer cylinder 2 moves relative to the inner cylinder 1, the outer cylinder 2 drives the gear 71 to move relative to the rack 70, and under the meshing cooperation effect of the gear 71 and the rack 70, the gear 71 drives the output rotating shaft 72 and drives the rotating wheel 6 to rotate, so that the vibration energy borne by the outer cylinder 2 and the inner cylinder 1 is converted into the rotational kinetic energy of the rotating wheel 6.
In order to improve the vibration dissipation performance of the vibration isolation damper, at least two groups of gear rack transmission structures 7 are arranged, and the at least two groups of gear rack transmission structures 7 are arranged in the lateral interval in a central symmetry mode. Specifically, eight groups of gear rack transmission structures 7 are arranged, the eight groups of gear rack transmission structures 7 are circumferentially and uniformly distributed in the square-shaped lateral intervals at intervals, namely two groups of gear rack transmission structures 7 are respectively arranged on four side walls of the inner cylinder 1; correspondingly, eight rotating wheels 6 are arranged on the outer side wall of the outer barrel 1, and each rotating wheel 6 is arranged on an output rotating shaft 72 of the corresponding gear rack transmission structure 7. When the outer cylinder 2 moves relative to the inner cylinder 1, the dynamic balance of the outer cylinder 2 can be ensured, and the vibration energy can be effectively converted into the rotational kinetic energy of the rotating shaft 72 through the gear rack transmission structures 7.
The outer wall of the outer cylinder 2 is provided with a magnet, the corresponding side of the rotating wheel 6 is provided with an induction conductor 60, wherein the magnet is a permanent magnet 61, the induction conductor 60 is a copper thin plate, when the rotating wheel 6 rotates at a high speed, the induction conductor 60 cuts magnetic lines of a magnetic field of the permanent magnet 61 to move, according to the Faraday electromagnetic induction principle, induction current, also called eddy current, is generated in the induction conductor 60, the induction conductor 60 generates resistance for hindering the rotation of the induction conductor 60 under the combined action of a fixed magnetic field and the eddy current, and finally the eddy current is converted into heat energy of the induction conductor 60 to be dissipated outwards through the resistance thermal effect, so that the vibration energy is dissipated in a mode of combining rotational inertia and eddy current damping; and the eddy current damping is speed-related, namely closely related to the cutting motion speed of the induction conductor, can generate a damping effect corresponding to the high-energy vibration, and has better shock insulation effect and reliability when being applied to practical building engineering.
In order to further improve the efficiency of eddy current damping, when the outer cylinder 2 reciprocates relative to the inner cylinder 1, the rotating wheel 6 keeps continuous high-speed rotation in one rotation direction, a forward rotation transmission and reverse rotation no-load one-way bearing 73 is arranged between the gear 71 and the output rotating shaft 72, the inner ring of the one-way bearing 73 is in rotation-stopping connection with the output rotating shaft 72, the outer ring of the one-way bearing 73 is in rotation-stopping connection with the gear 71, and the inner ring and the outer ring of the one-way bearing 73 are locked when the gear 71 rotates forward, so that the rotation of the gear 71 is transmitted to the output rotating shaft 72 and the rotating wheel 6 is driven to rotate forward; when the gear 71 rotates reversely, the inner ring and the outer ring of the one-way bearing 73 rotate freely, so that the output rotating shaft 72 and the rotating wheel 6 are ensured to rotate forwards continuously, and vibration energy is ensured to be continuously dissipated in the form of electric eddy. In other embodiments, the unidirectional bearing can be directly omitted according to the optimization design of the inertial volume parameter and the damping parameter of a specific structure, namely, a forward rotation and reverse rotation transmission mode is adopted.
Wherein, elastic support element is cylinder pressure spring 5, and cylinder pressure spring 5 extends in a direction parallel to the length direction of interior barrel 1, and cylinder pressure spring 5 is equipped with at least three, and in this embodiment, cylinder pressure spring 5 is equipped with nine altogether, and nine cylinder pressure springs 5 are central symmetry about the axis of interior barrel 1 and distribute. Nine cylinder pressure spring 5's height dimension is the same, and the both ends of each cylinder pressure spring 5 push up respectively on first connecting plate 3 and second connecting plate 4, props building structure through 5 elasticity top of cylinder pressure spring to can make interior barrel 1 and outer barrel 2 take place relative activity when taking place vibrations, and then play the transmission of buffering and eliminating vibrations effect. In other embodiments, in order to adapt to actual use requirements, the cylindrical compression spring can be replaced by a belleville spring, an air spring, a rubber pad or the like as the elastic support.
In order to increase the allowance of relative movement between the inner barrel body 1 and the outer barrel body 2, a horizontal shock insulation support 30 is further arranged on the lower side, back to the inner barrel body 1, of the first connecting plate 3, and the cross section of the horizontal shock insulation support 30 is smaller than the cross section outline of the inner barrel body 1. In order to meet different use requirements, in other embodiments, the cross section of the horizontal vibration isolation support 30 can be designed to be equal to the outer contour of the cross section of the inner cylinder 1, and the purpose of increasing the movement allowance can also be achieved. The horizontal shock-insulation support 30 is of a laminated rubber structure, is formed by alternately laminating and bonding steel plates and rubber as shown in fig. 3, and has the characteristics of strong vertical bearing capacity and good horizontal displacement shock absorption, so that the use effect of three-dimensional shock insulation is achieved.
In other embodiments of the seismic isolation damper of the present invention, the shape of the inner cylinder is not limited to the square cylinder in embodiment 1, but the shape of the inner cylinder may be designed as a rectangular cylinder, a cylindrical cylinder, an elliptical cylinder, or a polygonal cylinder, and correspondingly, the outer cylinder may be designed as a rectangular cylinder, a cylindrical cylinder, an elliptical cylinder, or a polygonal cylinder. In addition, the induction conductor is not limited to the copper thin plate in the embodiment 1, but the induction conductor can also be an aluminum thin plate or other good conductor material, and can also generate induction current in the induction conductor and convert the electric eddy current into heat energy of the induction conductor to be dissipated outwards.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (8)
1. A shock insulation damper is characterized by comprising an inner cylinder, an outer cylinder and an elastic supporting piece, wherein the outer cylinder is movably sleeved outside the inner cylinder, one end of the inner cylinder is connected with a first connecting plate, the end part, far away from the inner cylinder, of the outer cylinder is provided with a second connecting plate, the elastic supporting piece is assembled inside the inner cylinder, and the elastic supporting piece is located between the first connecting plate and the second connecting plate;
a lateral space is arranged between the inner cylinder and the outer cylinder, a transmission structure is arranged in the lateral space, an output rotating shaft of the transmission structure is perpendicular to the side wall of the outer cylinder, a rotating wheel is arranged on the output rotating shaft, a magnet is arranged on the outer wall of the outer cylinder, and an induction conductor is arranged on the corresponding side of the rotating wheel;
the transmission structure is a gear-rack transmission structure, the gear-rack transmission structure comprises a rack and a gear which are meshed with each other, the rack is fixedly arranged on the outer side wall of the inner cylinder body, the rack extends in parallel with the length direction of the inner cylinder body, and the gear is arranged on the output rotating shaft;
and a forward rotation transmission and reverse rotation no-load one-way bearing is arranged between the gear and the output rotating shaft.
2. Vibration-isolating damper according to claim 1, characterized in that the inner cylinder and the outer cylinder are both of rectangular cylinder construction, and that the rack and pinion drive is provided in at least two groups, at least two groups of the rack and pinion drive being arranged centrally symmetrically in the lateral space.
3. Vibration-isolating damper according to claim 2, wherein the lateral spaces have a cross-sectional profile in the shape of a "return" and at least two sets of gear-rack structures are distributed circumferentially at intervals in the lateral spaces.
4. Vibration-isolating damper according to claim 1, wherein the magnet is a permanent magnet.
5. Seismic isolation damper according to claim 1, wherein said induction conductor is a copper thin plate, or said induction conductor is an aluminum thin plate.
6. Vibration-isolating damper according to claim 1, wherein the elastic support member is a cylindrical compression spring extending parallel to the length direction of the inner cylinder.
7. The vibration isolation damper according to claim 6, wherein there are at least three of said compression cylindrical springs, and at least three of said compression cylindrical springs are arranged in a central symmetry with respect to a central axis of said inner cylinder.
8. The seismic isolation damper of claim 1 wherein the underside of said first connecting plate is further provided with a horizontal seismic isolation mount having a cross-section less than or equal to the cross-sectional outer contour of said inner cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010173137.2A CN111335495B (en) | 2020-03-12 | 2020-03-12 | Shock insulation damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010173137.2A CN111335495B (en) | 2020-03-12 | 2020-03-12 | Shock insulation damper |
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| Publication Number | Publication Date |
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| CN111335495A CN111335495A (en) | 2020-06-26 |
| CN111335495B true CN111335495B (en) | 2021-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010173137.2A Active CN111335495B (en) | 2020-03-12 | 2020-03-12 | Shock insulation damper |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113775071B (en) * | 2021-09-16 | 2022-06-21 | 山东大学 | Multifunctional shock absorber with energy recovery function |
| CN113864392B (en) * | 2021-10-15 | 2023-07-28 | 国望智承(北京)振动控制技术有限公司 | Decoupling hyperbola rail two-degree-of-freedom vibration-free table |
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| JP2011102600A (en) * | 2009-11-10 | 2011-05-26 | Hitachi-Ge Nuclear Energy Ltd | Magnetic damper device, internal pump system, and magnetic damper |
| CN203176246U (en) * | 2013-03-15 | 2013-09-04 | 尹学军 | Friction damper with adjustable pretightening force |
| CN204200948U (en) * | 2014-11-07 | 2015-03-11 | 中冶南方(武汉)威仕工业炉有限公司 | A kind of heating mantle damping device |
| CN206693717U (en) * | 2017-03-29 | 2017-12-01 | 华南理工大学 | A kind of Self-resetting marmem damper |
| CN109138566A (en) * | 2018-10-10 | 2019-01-04 | 同济大学 | It is used to appearance system using the tuning of collision friction damping energy dissipation |
| CN109853765A (en) * | 2019-01-30 | 2019-06-07 | 同济大学 | It is used to hold damper using the self-balancing type of positive and negative tooth screw rod |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070131504A1 (en) * | 2005-12-14 | 2007-06-14 | Northrop Grumman Corporation | Planar vibration absorber |
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2020
- 2020-03-12 CN CN202010173137.2A patent/CN111335495B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011102600A (en) * | 2009-11-10 | 2011-05-26 | Hitachi-Ge Nuclear Energy Ltd | Magnetic damper device, internal pump system, and magnetic damper |
| CN203176246U (en) * | 2013-03-15 | 2013-09-04 | 尹学军 | Friction damper with adjustable pretightening force |
| CN204200948U (en) * | 2014-11-07 | 2015-03-11 | 中冶南方(武汉)威仕工业炉有限公司 | A kind of heating mantle damping device |
| CN206693717U (en) * | 2017-03-29 | 2017-12-01 | 华南理工大学 | A kind of Self-resetting marmem damper |
| CN109138566A (en) * | 2018-10-10 | 2019-01-04 | 同济大学 | It is used to appearance system using the tuning of collision friction damping energy dissipation |
| CN109853765A (en) * | 2019-01-30 | 2019-06-07 | 同济大学 | It is used to hold damper using the self-balancing type of positive and negative tooth screw rod |
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