CN206189252U - Electromagnetic damper that tape spool held - Google Patents
Electromagnetic damper that tape spool held Download PDFInfo
- Publication number
- CN206189252U CN206189252U CN201621194701.4U CN201621194701U CN206189252U CN 206189252 U CN206189252 U CN 206189252U CN 201621194701 U CN201621194701 U CN 201621194701U CN 206189252 U CN206189252 U CN 206189252U
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- magnet
- cylinder
- linear bearing
- bearing
- electromagnetic damper
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Abstract
The utility model discloses an electromagnetic damper that tape spool held belongs to the civil engineering structure vibration control field. This attenuator has two kinds integral and disconnect -types, constitutes by barrel and damping part, can be fixed in the structure inside, the inside current vortex that produces of attenuator during through the vibration, realization damping power consumption effect. The barrel is the cylinder, and is fixed through locating pin and structure, the damping part includes fixed axle, spring, linear bearing, copper sheet and magnet inside being located the barrel. Fixed axle and barrel coaxial line, fixed connection is inside the barrel. Magnet passes through linear bearing to be connected with the fixed axle, and cylinder axis bi -directional motion can be followed to evenly distributed in linear bearing surface. The copper sheet is fixed in the barrel inner wall, with the magnet staggered arrangement, passes through the magnetism sense line that adjacent magnet formed magnetic field in the copper sheet face. The spring coupling barrel inner wall and the magnet in the outside. The utility model discloses a multidirectional energy consumption and vibration has the advantage that stability height, wide applicability etc. Are showing.
Description
Technical field
The utility model is related to a kind of electromagnetic damper with bearing, belongs to vibration control of civil engineering structure field, uses
In vibratory response of the reduction bridge structure under the effect of the external loads such as earthquake, wind, vehicle.
Background technology
With the development of designing technique and construction material in civil engineering, modern bridge structure increasingly toward it is long, thin, light,
It is soft to develop with low resistance direction, various regions build up it is many it is light-duty it is big across bridge.This kind of bridge is in the power lotus such as earthquake, wind, vehicle
Under load effect, big deformation and vibration is easily produced.The vibration of bridge structure be cause one of bridge damage (destruction) it is important
Factor.Causing the factor of bridge vibration mainly has：The vibration and vehicle-bridge coupling action that seismic vibration, load cause are drawn
The vibration for rising.Vibration increases the internal stress of bridge, reduces its durability.A large amount of constructions of Longspan Bridge and high-effect
The extensive use of bridge construction material, the vibration problem of bridge structure is protruded increasingly.
Vibration control of civil engineering structure is exactly to install certain device (such as vibration isolator in the privileged site of civil engineering structure
Deng) or certain mechanism's (such as energy-dissipating support, energy dissipating shear wall, energy dissipating node, sinker) or certain kernel texture (such as frequency modulation mass
Deng) or apply external force (such as external energy input) or adjustment structure dynamic characteristics, in the presence of earthquake (or wind), tie it
The dynamic response (such as acceleration, speed, displacement) of structure is reasonably controlled, it is ensured that personnel instrument of the structure and in structure in itself
The safety of equipment and in normal use environment situation.
At present, wide variety of vibration control mode is passively controlled in science of bridge building, and means are pacified at bridge pad
Put damper, such as Application No. 2016103402532 can assembled in series frequency-adjustable eddy current tuned mass damper,
A kind of semi-active type vibration control eddy current damper of Application No. 2016106441952.Conventional damper is with adjustment structure
Vertical motion based on, the horizontal shock-absorbing effect of the components such as pier stud to substructure is not considered during design.Therefore, need badly setting
A kind of vibration for being reduced the various directions of bridge structure in the way of energy-dissipating and shock-absorbing of meter, is effectively reduced the lower bridge structure plasticity of big shake and become
Shape and residual displacement, improve the damper of various direction shock resistances.
The content of the invention
Goal of the invention：For existing damper can only bridge structure vertical motion control problem, the utility model provide
It is a kind of for bridge structure, cover the damper for laterally being vibrated in interior various directions, is produced from damper inside during by vibrating
Raw current vortex, realizes multidirectional passive energy dissipation.
Technical scheme：In order to solve the above technical problems, the utility model provides a kind of electromagnetic damper with bearing, including
Cylinder and damping portion, the cylinder are used for connecting building structure, and the damping portion is arranged in cylinder, the damping portion
Including fixing axle, elastic component, linear bearing, conductor piece and magnet, the linear bearing is set in fixing axle, the magnet peace
Mounted in linear bearing outer surface, the elastic component is arranged between magnet and cylinder, and the conductor piece is fixed on the inwall of cylinder
On, the magnet is arranged with conductor piece interval cloth.The quantity of copper sheet and magnet can as needed increase or reduce.
Preferably, the fixing axle is two ends being fixedly mounted on cylinder on tubular axis.The axis of fixing axle with
Tubular axis are consistent, and using solid or hollow cylinder, two ends are fixed on cylinder inboard wall two ends.The cylinder is by aluminium alloy system
Into thin-wall barrel.In cylinder, it is fixed on inside bridge structure by alignment pin, can be placed along any direction as needed.
Preferably, the linear bearing is overall one, magnet compartment of terrain cloth in the axial direction of linear bearing
Put.Formed monoblock type damper, the elastic component cylinder radially connector drum and magnet, with outermost magnet pair
Should.Number of springs can increase and decrease as needed.When damping portion is monoblock type, the linear bearing quantity is 1；Work as damping portion
During for separate type, the linear bearing quantity increases as needed.The inner side that each section of linear bearing is connected with fixing axle is consolidated
Fixed, the outside being connected with magnet can be together with magnet way moving vertically.
Preferably, the linear bearing is spaced apart one group, the inner side that each section of linear bearing is connected with fixing axle
Fixed, the outside being connected with magnet can axially move.The damper of separate type is formed, in its outer magnet and cylinder two ends
Elastic component is respectively connected between wall, the corresponding magnet of two adjacent groups.
Preferably, the magnet is shaped as cuboid or other hexahedrons, one end of magnet is fixedly mounted on directly
Bobbin holds outside.Magnet can axially outside be moved with linear bearing, and quantity can increase and decrease as needed.
Preferably, the magnet is radially divided into some groups along cylinder, every group is evenly arranged on the outside of linear bearing, N/
S ends are relative along linear bearing outside, and spacing is equal between group and group.
Preferably, the conductor piece is radially divided into some groups along cylinder, every group with magnet interlaced arrangement, each copper
Piece is with two neighboring magnet apart from equal.Conductor piece is positioned radially along cylinder, and one end is fixedly mounted on the inner surface of cylinder, often
Individual conductor piece magnet is axisymmetricly placed, and its quantity can increase and decrease according to actual conditions.
Preferably, the conductor piece is copper sheet, the elastic component is spring.The copper sheet is divided into some groups, every group
With magnet interlaced arrangement.Apart from equal, copper sheet face is by two neighboring magnet shape for described each copper sheet and two neighboring magnet
Into the magnetic induction line in magnetic field.
Linear bearing inner side, outside have 16 rows linearly to arrange the track that groove is formed, and steel ball is located inside and outside
Rolled in the respective carter of side, to ensure the stability that the bearing being connected with magnet outside is linearly moved.
Relative to separate type damper, monoblock type damper possesses rigidity higher, more preferable globality and stability；And
Separate type damper is then more flexible, is effectively increased adjustable frequency range, the need for adapting to different structure.
Inventive principle：In the course of work of damper, motion and the bridge vibration of beam of magnet (including linear bearing outer rim)
Occur simultaneously, relative motion is produced between magnet and copper sheet, the magnetic flux through copper sheet changes.By electromagnetic induction principle,
The current vortex as whirlpool will be produced in conductor.Sensing current vortex can also produce an electromagnetic field to be produced with the magnetic field of magnet
Electromagnetic damping effect is given birth to hinder the motion of magnet.In this process, current vortex does work in copper sheet will produce substantial amounts of heat,
Dissipated so as to the mechanical energy of vibration is converted into thermal energy consumption, so as to reach the purpose of energy-dissipating and shock-absorbing.Current vortex in this course
Good viscous damping characteristic is shown, and the abatement of vibration is accelerated by the power consumption of itself.
Technical scheme according to more than, relative to prior art, the utility model has following beneficial effect：Damping system
The multidirectional design of entirety of uniting, solves the problems, such as that traditional bridge damper can only vertical motion.Linear axis are introduced in damper
Hold, damping system overall stability has been ensured while significantly reducing frictional resistance.And damper has monoblock type and separate type
Two kinds of different designs of form, are that overall stability provides more choices with the adjustability of frequency range, the different engineerings of adaptation,
The need for structure.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the barrel dliameter of the utility model embodiment one to central sectional view；
Fig. 2 is the A-A profiles of Fig. 1；
Fig. 3 is the B-B profiles of Fig. 1；
Fig. 4 is the detail drawing of Fig. 2；
Fig. 5 is the detail drawing of Fig. 3；
Fig. 6 is the A-A profiles of embodiment two；
Fig. 7 is the B-B profiles of embodiment two；
Fig. 8 is the detail drawing of Fig. 6；
Fig. 9 is the detail drawing of Fig. 7；
Figure 10 is the profile of linear bearing；
Figure 11 is the cutting three-dimensional view on the outside of linear bearing；
Figure 12 is the cutting three-dimensional view on the inside of linear bearing；
In figure：1. bridge structure, 2. cylinder, 3. fixing axle, 4. linear bearing, 5. magnet, 6. copper sheet, 7. spring, 8. straight
Bobbin holds inner side, 9. linear bearing ball, 10. linear bearing outside, 11. alignment pins.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the utility model is further elucidated, it should be understood that these embodiments are only used for
Illustrate the utility model rather than limit scope of the present utility model, after the utility model has been read, art technology
Modification of the personnel to the various equivalent form of values of the present utility model falls within the application appended claims limited range.
A kind of electromagnetic damper with bearing for existing damper can only bridge structure vertical motion control problem, carry
For a kind of multidirectional damper for bridge structure, the current vortex that damper inside produces during by vibrating is realized comprising laterally
In interior multidirectional passive energy dissipation.Monoblock type and two kinds of forms of separate type are divided into based on damper, are specifically described separately below.
Embodiment one：
The monoblock type damper of the present embodiment includes cylinder 2 and damping portion.Cylinder 2 is the thin-wall circular being made up of aluminium alloy
Cylinder, is fixed on inside bridge structure 1 by alignment pin 11, can be placed along any direction as needed.
Damping portion includes fixing axle 3, spring 7, linear bearing 4, copper sheet 6, magnet 5.
As shown in figure 1, fixing axle 3 is in cylinder (solid or hollow), installed in the center of cylinder 2, axis and the axis of cylinder 2
Unanimously, two ends are fixedly connected with the inwall of cylinder 2.Linear bearing 4 is by linear bearing inner side 8, linear bearing ball 9, linear bearing
Outside 10 constitutes, wherein, linear bearing inner side 8 is fixedly connected with the outer surface of fixing axle 3, and linear bearing outside 10 is consolidated with magnet 5
Fixed connection, with magnet 5 together in the inside bidirectional-movement of cylinder 2.
Magnet 5 is shaped as cuboid or other hexahedrons, and quantity can increase and decrease as needed, be divided into some groups.Each magnetic
The one end of iron 5 is fixedly mounted on linear bearing outside 10, and is circumferentially evenly arranged.Every group of two neighboring magnet 5 is using staggeredly cloth
The adjacent cloth of electromagnet of the N pole of the mode put, i.e., towards electromagnet and a S poles of conductor mass towards conductor mass
Put, close the magnetic field of adjacent magnets, make full use of magnetic energy, increase the variable quantity of magnetic flux.
As shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 5, spacing is equal between each group of magnet 5, and two groups of magnet of outermost are straight except being fixed on
Bobbin is held beyond outside 10, is also connected with the end of cylinder 2 by spring 7.
The quantity of copper sheet 6 can increase and decrease as needed, each vertical placement, and one end is fixedly mounted on the inner surface of cylinder 2.Deng
Be divided into some groups, every group with the interlaced arrangement of magnet 5.Described each copper sheet 6 and two neighboring magnet 5 apart from equal, copper sheet 6
The magnetic induction line in magnetic field is formed in plane through two neighboring magnet 5.
When bridge structure 1 is vibrated, the relative motion between magnet 5 and copper sheet 6 can occur simultaneously, now through copper sheet
6 magnetic flux changes.By electromagnetic induction principle, the current vortex as whirlpool will be produced in conductor.Induced electricity whirlpool
Stream can also produce an electromagnetic field to produce electromagnetic damping effect with the magnetic field of magnet 5 to hinder the motion of magnet 5.In this process
In, current vortex acting in copper sheet 6 will produce substantial amounts of heat, be dissipated so as to the mechanical energy of vibration is converted into thermal energy consumption, so that
Reach the purpose of energy-dissipating and shock-absorbing.Current vortex shows good viscous damping characteristic in this course, and by itself
Power consumption accelerate the abatement of vibration.
Embodiment two：
The separate type damper of the present embodiment includes cylinder 2 and damping portion.Cylinder 2 is the thin-wall circular being made up of aluminium alloy
Cylinder, is fixed on inside bridge structure 1 by alignment pin 11, can be placed along any direction as needed.
Damping portion includes fixing axle 3, spring 7, linear bearing 4, copper sheet 6, magnet 5.
The barrel dliameter of the present embodiment is identical with Fig. 1 to central sectional view, and as shown in Fig. 6, Fig. 7, Fig. 8 and Fig. 9, fixing axle 3 is in
Cylinder (solid or hollow), installed in the center of cylinder 2, axis is consistent with the axis of cylinder 2, and two ends are fixed with the inwall of cylinder 2 and connected
Connect.Linear bearing 4 is constituted by linear bearing inner side 8, linear bearing ball 9, linear bearing outside 10, each section of linear bearing 4
Length can according to not consistent the need for different engineerings, structure, wherein, linear bearing inner side 8 is fixed with the outer surface of fixing axle 3 and is connected
Connect, linear bearing outside 10 is fixedly connected with magnet 5, with magnet 5 together in the inside bidirectional-movement of cylinder 2.
Magnet 5 is shaped as cuboid or other hexahedrons, and quantity can increase and decrease as needed, be divided into some groups.Every group of magnetic
The one end of iron 5 is fixedly mounted on one section of linear bearing outside 10, and is circumferentially evenly arranged.Every group of two neighboring magnet 5 is using friendship
The mode of mistake arrangement, i.e., one N poles are towards the electromagnet of conductor mass and a S poles towards the electromagnetism iron phase of conductor mass
Neighbour's arrangement, closes the magnetic field of adjacent magnets, makes full use of magnetic energy, increases the variable quantity of magnetic flux.Corresponding magnetic between each group
Iron 5 by spring 7 be connected, two groups of magnet of outermost except be fixed on linear bearing outside 10 in addition to, also by spring 7 and cylinder
2 ends are connected.
As is illustrated by figs. 11 and 12, linear bearing ball 9 is arranged between linear bearing inner side 8 and linear bearing outside 10
On the track long of correspondence position.
The quantity of copper sheet 6 can increase and decrease as needed, each vertical placement, and one end is fixedly mounted on the inner surface of cylinder 2.Deng
Be divided into some groups, every group with the interlaced arrangement of magnet 5.Described each copper sheet 6 is with two neighboring magnet 5 apart from equal, the face of copper sheet 6
The interior magnetic induction line that magnetic field is formed by two neighboring magnet 5.
When bridge structure 1 is vibrated, the relative motion between magnet 5 and copper sheet 6 can occur simultaneously, now through copper sheet
6 magnetic flux changes.By electromagnetic induction principle, the current vortex as whirlpool will be produced in conductor.Induced electricity whirlpool
Stream can also produce an electromagnetic field to produce electromagnetic damping effect with the magnetic field of magnet 5 to hinder the motion of magnet 5.In this process
In, current vortex acting in copper sheet 6 will produce substantial amounts of heat, be dissipated so as to the mechanical energy of vibration is converted into thermal energy consumption, so that
Reach the purpose of energy-dissipating and shock-absorbing.Current vortex shows good viscous damping characteristic in this course, and by itself
Power consumption accelerate the abatement of vibration.
Implementation method of the present utility model is described in detail above in association with accompanying drawing, but the utility model is not limited to institute
The implementation method of description.For one of ordinary skill in the art, in principle of the present utility model and the scope of technological thought
It is interior, various changes, modification, replacement and deformation are carried out to these implementation methods and is still fallen within protection domain of the present utility model.
Claims (10)
1. a kind of electromagnetic damper with bearing, comprising cylinder and damping portion, the cylinder is used for connecting building structure, described
Damping portion is arranged in cylinder, it is characterised in that：The damping portion includes fixing axle, elastic component, linear bearing, conductor piece
And magnet, the linear bearing is set in fixing axle, and the magnet is arranged on linear bearing outer surface, and the elastic component is installed
Between magnet and cylinder, the conductor piece is fixed on the inwall of cylinder, and the magnet is arranged with conductor piece interval cloth.
2. the electromagnetic damper with bearing as claimed in claim 1, it is characterised in that：The fixing axle is two ends fixed installation
Cylinder on tubular axis.
3. the electromagnetic damper with bearing as claimed in claim 1, it is characterised in that：The linear bearing is overall one
It is individual, magnet compartment of terrain arrangement in the axial direction of linear bearing.
4. the electromagnetic damper with bearing as claimed in claim 3, it is characterised in that：The elastic component in cylinder radially
Connector drum and outermost magnet.
5. the electromagnetic damper with bearing as claimed in claim 1, it is characterised in that：The linear bearing is spaced apart
One group, each section of inner side of linear bearing is connected with fixing axle, and outside is connected with magnet.
6. the electromagnetic damper with bearing as claimed in claim 5, it is characterised in that：Outer magnet and cylinder two ends inwall,
Elastic component is respectively connected between the corresponding magnet of two adjacent groups.
7. the electromagnetic damper with bearing as claimed in claim 2, it is characterised in that：The magnet be shaped as cuboid or
Hexahedron a, face of magnet is fixedly mounted on linear bearing outside.
8. the electromagnetic damper with bearing as claimed in claim 5, it is characterised in that the magnet is radially divided into along cylinder
Some groups, every group is evenly arranged on the outside of linear bearing, and N/S ends are relative along linear bearing outside, and spacing is equal between group and group.
9. the electromagnetic damper with bearing as claimed in claim 6, it is characterised in that：The conductor piece is along cylinder radial direction decile
Be some groups, every group with magnet interlaced arrangement, each conductor piece is with two neighboring magnet apart from equal.
10. claim 1-9 it is any as described in the electromagnetic damper with bearing, it is characterised in that：The conductor piece is copper
Piece, the elastic component is spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621194701.4U CN206189252U (en) | 2016-10-28 | 2016-10-28 | Electromagnetic damper that tape spool held |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621194701.4U CN206189252U (en) | 2016-10-28 | 2016-10-28 | Electromagnetic damper that tape spool held |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206189252U true CN206189252U (en) | 2017-05-24 |
Family
ID=58734182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621194701.4U Expired - Fee Related CN206189252U (en) | 2016-10-28 | 2016-10-28 | Electromagnetic damper that tape spool held |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206189252U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108252200A (en) * | 2018-01-31 | 2018-07-06 | 华中科技大学 | A kind of suspension cable permanent-magnet type eddy current damper of variable power |
-
2016
- 2016-10-28 CN CN201621194701.4U patent/CN206189252U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108252200A (en) * | 2018-01-31 | 2018-07-06 | 华中科技大学 | A kind of suspension cable permanent-magnet type eddy current damper of variable power |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170524 Termination date: 20201028 |