CN113700161A - Universal eddy current damping shock absorber - Google Patents
Universal eddy current damping shock absorber Download PDFInfo
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- CN113700161A CN113700161A CN202111045625.6A CN202111045625A CN113700161A CN 113700161 A CN113700161 A CN 113700161A CN 202111045625 A CN202111045625 A CN 202111045625A CN 113700161 A CN113700161 A CN 113700161A
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- rolling
- cover
- eddy current
- main body
- universal
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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
- 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
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a universal eddy current damping shock absorber which comprises a base, a shell and a rolling body, wherein the shell is arranged on the base, a rolling space is arranged in the shell, a magnetic field is formed in the rolling space, the rolling body is freely and rollably arranged in the rolling space, the rolling body is made of a conductive non-magnetic material, and the rolling body can freely roll in the rolling space to cut the magnetic field to generate eddy current so as to generate heat. The universal eddy current damping shock absorber can effectively reduce vibration of the structure in any direction, and is convenient and reliable.
Description
Technical Field
The invention relates to the technical field of structural vibration control, in particular to a universal eddy current damping shock absorber.
Background
With the progress of society and the continuous improvement of construction process and quality, the height of the building structure is higher and higher. The vibration problem of buildings under transverse horizontal loads such as wind load, earthquake and the like is more and more prominent, so that the vibration control of building structures is more and more important. And the proper damper can greatly reduce the vibration of the structure and improve the safety performance of the structure. Meanwhile, in life, other structures exist, the vibration direction received by the damper is not only a one-way or two-way damper but also random, but most of the traditional dampers are one-way or two-way dampers at present, namely: the damping device can only effectively reduce structural vibration in one or two directions, and the dampers are viscous and viscoelastic dampers, but the dampers have the problems of easy liquid leakage, low durability, difficult later-stage damping parameter adjustment and the like along with the time.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a universal eddy current damping shock absorber which can effectively reduce the vibration of the structure in any direction and is convenient and reliable.
In order to achieve the purpose, the invention is realized by the following technical scheme: a universal eddy current damping shock absorber comprising:
a base;
the shell is arranged on the base, a rolling space is arranged in the shell, and a magnetic field is formed in the rolling space; and
the rolling body is arranged in the rolling space in a free rolling mode and made of conductive non-magnetic materials, and the rolling body can roll freely in the rolling space to cut a magnetic field to generate electric eddy currents so as to generate heat.
Further, the casing includes main part and lid, the main part sets up on the base, the lid with the main part can be dismantled and is connected, the lid with the main part forms jointly the space that rolls, the lid with the magnetism of main part is opposite form the magnetic field in the space that rolls.
Further, the main body is a permanent magnet or an electromagnet, and the cover body is a permanent magnet or an electromagnet.
Further, the top of main part is for opening the form, the inner wall of main part is the smooth arcwall face of undercut, the lid is established the top of main part, be provided with outside bellied guide part on the lid, the outer wall size of guide part with the inner wall size adaptation of main part, the guide part with form between the inner wall of main part the roll space, the guide part is permanent magnet or electromagnet.
Furthermore, a first detachable damping cushion layer is further arranged on the inner wall of the main body.
Furthermore, a detachable second damping cushion layer is further arranged on the outer wall of the guide portion, the rolling body can roll in the rolling space formed by the first damping cushion layer and the second damping cushion layer, the outer wall of the rolling body can be in contact with the first damping cushion layer and the second damping cushion layer, and the rolling body can roll in the rolling space.
Further, a handle is arranged on the cover body.
Further, the casing still includes the elastic component, the main part is towards the terminal surface of lid is equipped with the cushion cap, the one end of elastic component is fixed on the cushion cap, the other end of elastic component with lid swing joint.
Further, the lid still includes the baffle, the baffle sets up on the internal surface of lid, the baffle inserts in the main part with the inner wall butt of main part.
Further, the rolling bodies are spherical.
The invention has the beneficial effects that:
above-mentioned universal eddy current damping bumper shock absorber, because be formed with magnetic field in the rolling space, when the structure takes place the vibration outside, can drive whole bumper shock absorber emergence vibration, the rolling element is in the rolling space arbitrary universal rolling, can cut the magnetic line of force and form the eddy current, the eddy current hinders the motion of rolling element with former magnetic field interact again, because the existence of eddy current for external vibration kinetic energy turns into heat energy and distributes away, reaches the purpose of damping energy dissipation.
The shock absorber does not need external energy, can achieve the purpose of damping shock absorption through external vibration kinetic energy in the shock absorption process, can save energy, and can also reduce the pollution to the environment. Meanwhile, the control is convenient, the safety is reliable, in addition, the structure is simple and direct, and the installation and the maintenance are convenient; long service life and repeated use.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings, which are required to be used in the embodiments, will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.
FIG. 1 is a schematic view of a universal eddy current damping absorber according to an embodiment of the present invention;
FIG. 2 is a top plan view of a universal eddy current damping absorber shown in FIG. 1;
FIG. 3 is a schematic view of an elastomeric member of the universal eddy current damping mount of FIG. 1;
reference numerals:
100. a base; 200. a rolling body; 300. a housing; 310. a main body; 311. a first damping cushion layer; 320. a cover body; 321. a guide portion; 322. a second damping cushion layer; 323. a handle; 330. rolling the space; 340. an elastic member; 350. and a baffle plate.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
Referring to fig. 1 to 3, the present invention provides a universal eddy current damping shock absorber, which includes a base 100, a rolling body 200 and a housing 300. For the damping of objects.
Specifically, the base 100 is used to support the entire shock absorber. In particular embodiments, the base 100 may be bolted or welded to the outer structure.
The housing 300 is mounted on the base 100, a rolling space 330 is provided in the housing 300, a magnetic field is formed in the rolling space 330, and the rolling elements 200 are provided in the rolling space 330 so as to be free to roll. In this embodiment, the housing 300 includes a main body 310 and a cover 320, the main body 310 is disposed on the base 100, the cover 320 is detachably connected to the main body 310, and the cover 320 and the main body 310 together form a rolling space 330.
The rolling space 330 may be spherical, ellipsoidal, trough, etc., i.e.: as long as the rolling elements 200 can freely roll in the rolling space 330. The rolling body 200 is made of a conductive non-magnetic material, and the rolling body 200 can freely roll in the rolling space 330 to cut a magnetic field to generate an eddy current, thereby generating heat and consuming energy.
In one embodiment, the rolling element 200 may be a ball, and the rolling element 200 smoothly rolls in the rolling space. It is understood that in other embodiments, the rolling element 200 may have other shapes, such as an ellipsoid shape, or may be a cylinder directly, or may have other regular or irregular shapes capable of rolling, and is not limited herein. The rolling bodies can adopt copper balls and aluminum balls, and experiments prove that the copper balls have the best effect. The number of rolling elements 200 can be adjusted to the actual situation in order to achieve different damping effects.
The magnetic polarities of the cover 320 and the body 310 are opposite to each other to form a magnetic field in the rolling space 330. In the present embodiment, the main body 310 is a permanent magnet or an electromagnet, and the cover 320 is a permanent magnet or an electromagnet. In specific implementation, the combination of the main body 310 and the cover 320 may be: a permanent magnet plus permanent magnet combination, a permanent magnet plus magnet combination, an electromagnet plus permanent magnet combination, and an electromagnet plus magnet combination. In the present embodiment, the main body 310 and the cover 320 are both permanent magnets, and the structures of the main body 310 and the cover 320 can be simplified. In other embodiments, when the body 310 and the cover 320 are electromagnets, the control of the shock absorber may be facilitated.
In this embodiment, the top of the main body 310 is open, and the inner wall of the main body 310 is a smooth arc-shaped surface recessed downward. The cover body 320 is covered on the top of the main body 310, the cover body 320 is provided with a guide part 321 protruding outwards, the size of the outer wall of the guide part 321 is matched with the size of the inner wall of the main body 310, a spherical groove-shaped rolling space 330 is formed between the guide part 321 and the inner wall of the main body 310, and the guide part 321 is a permanent magnet or an electromagnet. The rolling bodies 200 are located in the rolling space 330. In specific implementation, the width of the axial section of the rolling space 330 is just enough to allow the rolling body 200 to pass through, i.e. the diameter of the rolling body 200 should be adapted to the size of the rolling space 330, so that the outer wall of the guide portion 321 can play a guiding role, and the rolling body 200 can roll regularly in the rolling space 330.
It is understood that in other embodiments, the rolling space 330 may be formed by other structures, such as an ellipsoidal groove-shaped space when the inner wall of the main body 310 is ellipsoidal and the guide 321 is also ellipsoidal; or when the inner wall of the main body 310 is spherical and the guide portion 321 is also spherical, the rolling space 330 is spherical; or when the inner wall of the main body 310 is ellipsoidal and the guide 321 is also ellipsoidal, the rolling space 330 is ellipsoidal.
In order to facilitate pulling the cover 320, in the present embodiment, a handle 323 is disposed on an outer surface of the cover 320. The cover 320 can be easily removed by the handle 323.
When the cover body 320 is covered on the main body 310, because the main body 310 is opposite to the magnetic property of the guiding part, a magnetic field is formed in the rolling space 330, when the external structure vibrates, the whole shock absorber is driven to vibrate, the rolling body 200 rolls back and forth in the rolling space 330, and simultaneously cuts magnetic lines of force to form an eddy current, the eddy current interacts with the original magnetic field to block the motion of the rolling body 200, and due to the existence of the eddy current, the external vibration kinetic energy is converted into heat energy and is distributed out, so that the purpose of vibration reduction and energy dissipation is achieved.
In a preferred embodiment, a detachable first damping pad layer 311 is further disposed on the inner wall of the main body 310. When the rolling body 200 is acted on by an external vibration force, the rolling body 200 rolls on the first damping pad layer 311. In the rolling process, the first damping cushion layer 311 gives a certain damping force to the rolling body 200 through friction, the damping force works to convert the kinetic energy of the rolling body 200 into heat energy and dissipate the heat energy, and therefore the purpose of damping shock absorption is further achieved.
In a more preferred embodiment, a second removable damping pad 322 is further disposed on an outer wall of the guide portion 321. The outer wall of the rolling body 200 can contact the first damping pad layer 311 and the second damping pad layer 322, and the rolling body 200 can roll in the rolling space 330 formed by the first damping pad layer 311 and the second damping pad layer 322. Namely: in practical implementation, it is necessary to ensure that the outer wall of the rolling element 200 can contact with the first damping pad layer 311 and the second damping pad layer 322, and that the rolling element 200 can smoothly roll in the rolling space 330. Similarly, in the rolling process, the second damping cushion 322 provides a certain damping force to the rolling element 200 through friction, and the damping force works to convert the kinetic energy of the rolling element 200 into heat energy and dissipate the heat energy, so as to achieve the purpose of damping. Meanwhile, the damping is coordinated by the first damping cushion layer 311 and the second damping cushion layer 322, so that the damping effect is further increased.
Need to explain: when selecting materials, the first damping cushion layer 311 and the second damping cushion layer 322 should be made of materials with low elasticity but high damping, such as a silica gel cushion and a foam cushion, in the rolling process of the rolling body 200, the rolling body 200 extrudes the first damping cushion layer 311 and the second damping cushion layer 322 to make the first damping cushion layer 311 and the second damping cushion layer 322 deform, and the deformation of the first damping cushion layer 311 and the second damping cushion layer 322 can absorb partial vibration and consume partial kinetic energy, so that the damping effect can be achieved in one step.
In addition, first damping cushion layer 311 and second damping cushion layer 322 all set up to detachable connected mode, and specific connected mode can adopt joint or bonding etc. when needing to change the thickness, the material of first damping cushion layer 311 or second damping cushion layer 322 or when needing to be updated after being worn out, directly take off old, change new first damping cushion layer 311 or second damping cushion layer 322 on can.
In this embodiment, the housing 300 further includes an elastic member 340. The end surface of the main body 310 facing the cover body 320 is provided with a bearing platform, one end of the elastic member 340 is fixed on the bearing platform, and the other end of the elastic member 340 is movably connected with the cover body 320. The elastic member 340 has the following functions during the vibration process: firstly, the elastic member 340 has an elastic force to play a buffering role, so that the hard contact between the cover 320 and the top end surface of the main body 310 during the vibration process can be prevented, and the parts can be prevented from being damaged by collision; secondly, because the elastic member 340 has elastic force to play a role of buffering, in the vibration process, part of the vibration kinetic energy can be absorbed, and the purpose of damping and shock absorption is further achieved.
The length and elasticity of the elastic member 340 should be: when the cover body 320 is covered on the main body 310, the rolling body 200 can be freely rolled just in the rolling space 330 under the condition that the elastic member 340 is compressed to the shortest. In specific implementation, the number of the elastic members 340 may preferably be 6 to 10, and the elastic members 340 may preferably be springs.
In a preferred embodiment, the cover 320 further includes a baffle 350. The baffle 350 is provided on the inner surface of the cover 320, and the baffle 350 is inserted into the main body 310 to abut against the inner wall of the main body 310. The baffle 350 is used to limit the cover 320. The cover 320 is prevented from shaking left and right during the vibration process, and the rolling elements 200 are prevented from rolling in the rolling space 330.
The universal eddy current damping shock absorber is used in the following mode:
when in use, the base 100 is fixed on an external structure needing shock absorption, then the first damping cushion layer 311 and the second damping cushion layer 322 are selected according to the material and the size of the rolling body 200, and the first damping cushion layer 311 and the second damping cushion layer 322 are respectively fixed on the inner wall of the main body 310 and the outer wall of the guide part 321; next, the rolling element 200 is put into the main body 310, and the cover 320 is covered on the main body 310 and connected to the elastic member 340.
When the external structure vibrates, the whole shock absorber is driven to vibrate under the action of external vibration kinetic energy, so that the rolling body 200 is driven to roll back and forth in the rolling space 330, the rolling body 200 cuts magnetic lines of force to form eddy currents, the eddy currents interact with the original magnetic field to block the movement of the rolling body 200, and the external vibration kinetic energy is converted into heat energy of the rolling body 200 and is distributed due to the existence of the eddy currents, so that the purpose of vibration reduction and energy dissipation is achieved. Meanwhile, the rolling elements 200 rub against the first damping cushion layer 311 and the second damping cushion layer 322, and the first damping cushion layer 311 and the second damping cushion layer 322 have a deformation shock absorption effect, so that a damping effect is further achieved.
The universal eddy current damping shock absorber comprises:
since the rolling bodies 200 can universally roll in the rolling space 330, vibration in any direction of the structure can be effectively reduced. The mode does not need external energy, can achieve the aim of damping and shock absorption through external vibration kinetic energy in the shock absorption process, can save energy, and can reduce the pollution to the environment. Meanwhile, the control is convenient, the safety is reliable, in addition, the structure is simple and direct, and the installation and the maintenance are convenient; long service life and repeated use.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (10)
1. A universal eddy current damping shock absorber, comprising:
a base;
the shell is arranged on the base, a rolling space is arranged in the shell, and a magnetic field is formed in the rolling space; and
the rolling body is arranged in the rolling space in a free rolling mode and made of conductive non-magnetic materials, and the rolling body can roll freely in the rolling space to cut a magnetic field to generate electric eddy currents so as to generate heat.
2. The universal eddy current damping damper according to claim 1, wherein the housing comprises a main body and a cover, the main body is disposed on the base, the cover is detachably connected to the main body, the cover and the main body together form the rolling space, and the cover and the main body have opposite magnetism to form the magnetic field in the rolling space.
3. The universal eddy current damping bumper of claim 2, wherein the body is a permanent magnet or an electromagnet and the cover is a permanent magnet or an electromagnet.
4. The universal eddy current damping damper according to claim 2 or 3, wherein the top of the main body is open, the inner wall of the main body is a smooth arc-shaped surface which is concave downwards, the cover body covers the top of the main body, a guide part which is convex outwards is arranged on the cover body, the size of the outer wall of the guide part is matched with that of the inner wall of the main body, the rolling space is formed between the guide part and the inner wall of the main body, and the guide part is a permanent magnet or an electromagnet.
5. The gimbaled eddy current damping bumper of claim 4, wherein a first removable damping cushion is further provided on the inner wall of the body.
6. The universal eddy current damping damper according to claim 5, wherein a second removable damping cushion layer is further provided on an outer wall of the guide portion, the rolling element is capable of rolling in the rolling space formed by the first damping cushion layer and the second damping cushion layer, the outer wall of the rolling element is capable of contacting the first damping cushion layer and the second damping cushion layer, and the rolling element is capable of rolling in the rolling space.
7. The universal eddy current damping bumper of claim 2, wherein a handle is provided on the cover.
8. The universal eddy current damping damper according to claim 2, wherein the housing further comprises an elastic member, a bearing platform is disposed on an end surface of the main body facing the cover, one end of the elastic member is fixed on the bearing platform, and the other end of the elastic member is movably connected to the cover.
9. The universal eddy current damping damper according to claim 8, wherein the cover further comprises a baffle disposed on an inner surface of the cover, the baffle being inserted into the body to abut an inner wall of the body.
10. The universal eddy current damping damper according to claim 1, wherein the rolling bodies are spherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111045625.6A CN113700161B (en) | 2021-09-07 | 2021-09-07 | Universal eddy current damping shock absorber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111045625.6A CN113700161B (en) | 2021-09-07 | 2021-09-07 | Universal eddy current damping shock absorber |
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| CN113700161A true CN113700161A (en) | 2021-11-26 |
| CN113700161B CN113700161B (en) | 2023-01-20 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06158912A (en) * | 1992-11-18 | 1994-06-07 | Kenichi Sekine | Vibration isolation apparatus |
| CN104912224A (en) * | 2015-05-28 | 2015-09-16 | 范文睿 | Swing type steel ball damping structure shock insulation and absorption device |
| CN105492710A (en) * | 2014-02-10 | 2016-04-13 | 神崎隆洋 | Seismic isolator |
| CN107061599A (en) * | 2017-06-06 | 2017-08-18 | 广东电网有限责任公司电力科学研究院 | A kind of ball-type current vortex omnidirectional damping unit |
| CN107060455A (en) * | 2017-05-31 | 2017-08-18 | 山东大学 | A kind of multidirectional damping control device of bobbin type |
| CN108756008A (en) * | 2018-07-04 | 2018-11-06 | 武汉科技大学 | A kind of electromagnetism-collision composite buffer |
| KR101928017B1 (en) * | 2018-01-05 | 2018-12-12 | 한국과학기술원 | Vibration Isolation Device |
-
2021
- 2021-09-07 CN CN202111045625.6A patent/CN113700161B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06158912A (en) * | 1992-11-18 | 1994-06-07 | Kenichi Sekine | Vibration isolation apparatus |
| CN105492710A (en) * | 2014-02-10 | 2016-04-13 | 神崎隆洋 | Seismic isolator |
| CN104912224A (en) * | 2015-05-28 | 2015-09-16 | 范文睿 | Swing type steel ball damping structure shock insulation and absorption device |
| CN107060455A (en) * | 2017-05-31 | 2017-08-18 | 山东大学 | A kind of multidirectional damping control device of bobbin type |
| CN107061599A (en) * | 2017-06-06 | 2017-08-18 | 广东电网有限责任公司电力科学研究院 | A kind of ball-type current vortex omnidirectional damping unit |
| KR101928017B1 (en) * | 2018-01-05 | 2018-12-12 | 한국과학기술원 | Vibration Isolation Device |
| CN108756008A (en) * | 2018-07-04 | 2018-11-06 | 武汉科技大学 | A kind of electromagnetism-collision composite buffer |
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| CN113700161B (en) | 2023-01-20 |
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