CN206338351U - A kind of electromagnetic eddy rotary damper - Google Patents
A kind of electromagnetic eddy rotary damper Download PDFInfo
- Publication number
- CN206338351U CN206338351U CN201621304706.8U CN201621304706U CN206338351U CN 206338351 U CN206338351 U CN 206338351U CN 201621304706 U CN201621304706 U CN 201621304706U CN 206338351 U CN206338351 U CN 206338351U
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- CN
- China
- Prior art keywords
- inner cylinder
- feed screw
- outer barrel
- screw nut
- rotary damper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000013016 damping Methods 0.000 abstract description 10
- 238000009434 installation Methods 0.000 abstract description 3
- 230000033001 locomotion Effects 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 5
- 239000004020 conductor Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Vibration Prevention Devices (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The utility model belongs to structural damping field, and in particular to a kind of electromagnetic eddy rotary damper, including outer barrel, inner cylinder and leading screw, wherein, inner cylinder is located in outer barrel；The leading screw outer peripheral face is connected with feed screw nut, and outer peripheral face and the inner cylinder inwall of feed screw nut are connected, and the inner cylinder outer peripheral face is provided with coil；The outer tube inner wall is fixedly installed annular permanent magnet, and the annular permanent magnet is correspondingly arranged with the coil；Thrust bearing is provided between the outer barrel and feed screw nut, roller bearing is provided between outer barrel and inner cylinder.The utility model can effectively consume earthquake, the energy of wind shake, and particularly under big shake, damper power consumption is more obvious, and damper volume is compact, and installation form is various.
Description
Technical field
The invention belongs to structural damping field, and in particular to a kind of electromagnetic eddy rotary damper.
Background technology
In the construction of modern building, bridge etc., the shock resistance of structure has become the key of designer's consideration
Problem.With the development of technology, damper just plays an important role.In recent years, electromagnetic eddy technology is also employed for resistance
In Buddhist nun's device, its general principle is：Conductor is done in magnetic field will produce induced-current in cutting magnetic line movement, conductor, according to stupefied
Secondary law, the reason for effect that induced-current is produced always is resistant to produce induced-current, this will hinder fortune of the conductor in magnetic field
It is dynamic, that is, produce electromagnetic damping.Using the rotary damper of ball guide screw nat principle design, swash by earthquake, wind shake etc.
After encouraging, leading screw axially moves, while nut rotates.
But when the excitation being subject to is excessive, the rotary speed of nut will increased dramatically, so as to be difficult to control to, to damping
Device and agent structure have fatal infringement, cause unthinkable consequence.Using electromagnetic eddy technology, transport the rotation of nut
Move and carried out in magnetic field, due to cutting magnetic line, it will produce electromagnetic resistance, slow down the rotation of nut, make the work of damper
The ability of state more steady, consumed energy is more protruded, and thus this case produces.
The content of the invention
It is an object of the invention to provide a kind of electromagnetic eddy rotary damper, to solve rotary damper rotor big
The lower rotary speed of excitation is too big, may be to agent structure and the hurtful technical problem of damper.
To achieve the above object, the technical scheme that specifically provides of the present invention is：A kind of electromagnetic eddy rotary damper, including
Outer barrel, inner cylinder and leading screw, wherein, inner cylinder is located in outer barrel；The leading screw outer peripheral face is connected with feed screw nut, feed screw nut
Outer peripheral face and inner cylinder inwall be connected, the inner cylinder outer peripheral face is provided with coil；The outer tube inner wall is fixedly installed annular forever
Magnet, the annular permanent magnet is correspondingly arranged with the coil；Thrust bearing, outer barrel are provided between the outer barrel and feed screw nut
Roller bearing is provided between inner cylinder.
Further, the leading screw cooperatively forms with feed screw nut and some steel balls is provided with ball channel, ball channel.
Further, the ball channel is internal-circulation type or outer circulation type.
Further, the feed screw nut includes big section of diameter and diameter segment, big section of the diameter of feed screw nut and two thrusts
Bearing is flexibly connected；The diameter segment of feed screw nut is fixed on inner cylinder inwall.
Further, bearing retainer nut is provided with the inner tank theca, the bearing retainer nut is used for roller bearing
Axially position.
Further, the outer tube inner wall is provided with shoulder block, and the side of shoulder block is used to fix thrust bearing, the opposite side of shoulder block
For Fix roller bearing；The outer barrel is provided with bearing (setting) plate close to leading screw side ports, and the another port of the outer barrel is set
The boss cover plate with boss is equipped with, the boss is located on same central shaft with leading screw.
It is an advantage of the invention that：
First, the electromagnetic damping power of this electromagnetic eddy damper is adjustable, because the wire circle of inner tank theca winding
It can be adjusted with the size of toroidal magnet magnetic force, so electromagnetic damping coefficient can be set in one very big scope, with knot
The fiting effect of structure is more suitable, and anti seismic efficiency substantially increases.
2nd, the damping force of damper is increased by electromagnetic damping, it is to avoid use fluid media (medium), to Sealing Technology requirement
It is not high, so as to reduce processing and manufacturing difficulty, add the application of damper.
3rd, the electromagnetic eddy damper both can be independently installed in structure by attachment means, can also be arranged on tuning
Mass damper（TMD）In, it is possible to achieve preferably coordinate with structure, can also this not only adds the flexibility of damper
Increase TMD energy dissipation ability.
4th, the electromagnetic eddy damper is velocity-dependent damper, and it only provides additional damping for structure, without right
Structure provides additional stiffness, and this can effectively solve damper stiffness and the unmatched problem of the rigidity of structure.
5th, the electromagnetic eddy damper volume is compact, and flexibly, installation form is various for installation site.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；Fig. 2 is leading screw and feed screw nut mating connection schematic diagram；Fig. 3 is for producing
The structural representation of electromagnetic damping part.
Embodiment
Next with reference to accompanying drawing, the present invention is described in further detail.
As Figure 1-3, what the present invention was disclosed is a kind of electromagnetic eddy rotary damper, including outer barrel 1, inner cylinder 2 and silk
Thick stick 3, wherein, inner cylinder 2 is located in outer barrel 1；The outer peripheral face of leading screw 2 is connected with feed screw nut 4, the periphery of feed screw nut 4
Face is connected with the inwall of inner cylinder 2, and the outer peripheral face of inner cylinder 2 is provided with coil 5；The inwall of outer barrel 1 is fixedly installed annular permanent magnet
Body 6, the annular permanent magnet 6 is correspondingly arranged with the coil 5；
Thrust bearing 7 is provided between the outer barrel 1 and feed screw nut 4, Roller Shaft is provided between outer barrel 2 and inner cylinder 3
Hold 8；Bearing retainer nut 9 is provided with the outer wall of inner cylinder 2, the axial direction that the bearing retainer nut 9 is used for roller bearing 8 is determined
Position.
The feed screw nut 4 includes big section 41 of diameter and diameter segment 42, big section 41 of the diameter of feed screw nut 4 and two thrusts
Bearing 7 is flexibly connected；The diameter segment 42 of feed screw nut 4 is fixed on the inwall of inner cylinder 2.Diameter segment 42 is nested with inner cylinder 2（In ensureing
Cylinder 2 is coaxial with leading screw 3）, a thrust bearing 7 is respectively installed at big section of 41 two ends of diameter（The tight ring of thrust bearing 7 is installed, and is needed
Ensure that the tight ring of thrust bearing and nut do not have relative motion）.One roller bearing 8 is installed on inner cylinder 2, spiral shell is positioned with bearing
Mother is fixed, and ensures that inner cylinder and roller bearing inner ring do not have relative motion.
The inwall of outer barrel 1 is provided with shoulder block 10, and the side of shoulder block 10 is used to fixing thrust bearing 7, shoulder block 10 it is another
Side is used for Fix roller bearing 8；The outer barrel 1 is provided with bearing (setting) plate 11 close to the side ports of leading screw 3, the outer barrel 1 it is another
Single port is provided with the boss cover plate 13 with boss 12, and the boss 12 is located on same central shaft with leading screw 3.
With reference to shown in Fig. 2, the leading screw 3 is cooperatively formed with feed screw nut 4 and is provided with ball channel 34, ball channel 34
Some steel balls；The ball channel 34 is internal-circulation type or outer circulation type；The axial movement of leading screw 3 is changed by the transmission of ball
For the rotary motion of feed screw nut 4, but the rotary motion of leading screw 3 and the axial movement of feed screw nut 4 must be limited.
The feed screw nut 4 with reference to shown in Fig. 3 drives inner cylinder 2 to rotate together, by placing annular forever in the inwall of outer barrel 1
Magnet 6, in the outer wall wound around coil 5 of inner cylinder 2 so that the rotary motion of inner cylinder 2 and coil 5 is changed into the cutting magnetic line in magnetic field
Motion, so as to produce electromagnetic resistance.Magnetic force, increase coil winding number of turns by increasing permanent magnet etc. can increase electromagnetism and hinder
Buddhist nun's power, so as to increase the energy dissipation capacity of damper.
Claims (6)
1. a kind of electromagnetic eddy rotary damper, it is characterised in that：Including outer barrel, inner cylinder and leading screw, wherein, inner cylinder is located at outer barrel
It is interior；The leading screw outer peripheral face is connected with feed screw nut, and outer peripheral face and the inner cylinder inwall of feed screw nut are connected, outside the inner cylinder
Side face is provided with coil；The outer tube inner wall is fixedly installed annular permanent magnet, and the annular permanent magnet is corresponding with the coil to be set
Put；Thrust bearing is provided between the outer barrel and feed screw nut, roller bearing is provided between outer barrel and inner cylinder.
2. a kind of electromagnetic eddy rotary damper according to claim 1, it is characterised in that：The leading screw and feed screw nut
Cooperatively form and some steel balls are provided with ball channel, ball channel.
3. a kind of electromagnetic eddy rotary damper according to claim 2, it is characterised in that：The ball channel follows to be interior
Ring type or outer circulation type.
4. a kind of electromagnetic eddy rotary damper according to claim 1, it is characterised in that：The feed screw nut includes straight
Big section of footpath and diameter segment, big section of the diameter of feed screw nut are flexibly connected with two thrust bearings；The diameter segment of feed screw nut is consolidated
It is connected in inner cylinder inwall.
5. a kind of electromagnetic eddy rotary damper according to claim 1, it is characterised in that：Set on the inner tank theca
There is bearing retainer nut, the bearing retainer nut is used for the axially position of roller bearing.
6. a kind of electromagnetic eddy rotary damper according to claim 1, it is characterised in that：The outer tube inner wall is provided with
Shoulder block, the side of shoulder block is used to fix thrust bearing, and the opposite side of shoulder block is used for Fix roller bearing；The outer barrel is close to leading screw
Side ports are provided with bearing (setting) plate, and the another port of the outer barrel is provided with the boss cover plate with boss, the boss with
Leading screw is located on same central shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621304706.8U CN206338351U (en) | 2016-11-30 | 2016-11-30 | A kind of electromagnetic eddy rotary damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621304706.8U CN206338351U (en) | 2016-11-30 | 2016-11-30 | A kind of electromagnetic eddy rotary damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206338351U true CN206338351U (en) | 2017-07-18 |
Family
ID=59308420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621304706.8U Expired - Fee Related CN206338351U (en) | 2016-11-30 | 2016-11-30 | A kind of electromagnetic eddy rotary damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206338351U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402228A (en) * | 2016-11-30 | 2017-02-15 | 浙江建科减震科技有限公司 | Electromagnetic eddy rotating damper |
| CN109488711A (en) * | 2018-12-28 | 2019-03-19 | 北京邮电大学 | Linear motion and rotary motion dual-purpose type electromagnetic damper |
| CN109611486A (en) * | 2018-11-19 | 2019-04-12 | 湖南省潇振工程科技有限公司 | A kind of current vortex axial direction damper |
| CN110259240A (en) * | 2019-06-19 | 2019-09-20 | 同济大学 | Prefabricated assembled eddy-current damping wall |
| CN111033078A (en) * | 2017-08-29 | 2020-04-17 | 日本制铁株式会社 | Vortex type vibration damper |
-
2016
- 2016-11-30 CN CN201621304706.8U patent/CN206338351U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402228A (en) * | 2016-11-30 | 2017-02-15 | 浙江建科减震科技有限公司 | Electromagnetic eddy rotating damper |
| CN111033078A (en) * | 2017-08-29 | 2020-04-17 | 日本制铁株式会社 | Vortex type vibration damper |
| KR20200044067A (en) * | 2017-08-29 | 2020-04-28 | 닛폰세이테츠 가부시키가이샤 | Eddy current damper |
| CN111033078B (en) * | 2017-08-29 | 2021-11-05 | 日本制铁株式会社 | Vortex type vibration damper |
| KR102339773B1 (en) | 2017-08-29 | 2021-12-15 | 닛폰세이테츠 가부시키가이샤 | Eddy Current Damper |
| CN109611486A (en) * | 2018-11-19 | 2019-04-12 | 湖南省潇振工程科技有限公司 | A kind of current vortex axial direction damper |
| CN109611486B (en) * | 2018-11-19 | 2019-09-13 | 湖南省潇振工程科技有限公司 | A kind of current vortex axial direction damper |
| CN109488711A (en) * | 2018-12-28 | 2019-03-19 | 北京邮电大学 | Linear motion and rotary motion dual-purpose type electromagnetic damper |
| CN110259240A (en) * | 2019-06-19 | 2019-09-20 | 同济大学 | Prefabricated assembled eddy-current damping wall |
| CN110259240B (en) * | 2019-06-19 | 2021-11-16 | 同济大学 | Prefabricated assembled eddy current damping wall |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170718 |
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| CF01 | Termination of patent right due to non-payment of annual fee |