JPH01108431A - Magnetic damper device - Google Patents
Magnetic damper deviceInfo
- Publication number
- JPH01108431A JPH01108431A JP62265328A JP26532887A JPH01108431A JP H01108431 A JPH01108431 A JP H01108431A JP 62265328 A JP62265328 A JP 62265328A JP 26532887 A JP26532887 A JP 26532887A JP H01108431 A JPH01108431 A JP H01108431A
- Authority
- JP
- Japan
- Prior art keywords
- conductor plate
- damped
- damper device
- magnetic
- damping
- 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.)
- Pending
Links
- 238000013016 damping Methods 0.000 claims abstract description 14
- 230000004907 flux Effects 0.000 claims abstract description 4
- 239000004020 conductor Substances 0.000 claims description 23
- 238000003475 lamination Methods 0.000 claims 1
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 abstract 1
- 238000010030 laminating Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 101000701902 Homo sapiens Serpin B4 Proteins 0.000 description 1
- 102100030326 Serpin B4 Human genes 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/03—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using magnetic or electromagnetic means
- F16F15/035—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using magnetic or electromagnetic means by use of eddy or induced-current damping
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Optical Head (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は、例えば光デイスク用光学ヘッドなどの精密駆
動に好適する磁気ダンパ装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a magnetic damper device suitable for precision driving of, for example, an optical head for an optical disk.
（従来の技術）
一般に、機械の可動部分の振動を除去する装置として、
ダンパ装置が用いられている。このダンパ装置には、大
別すると、渦電流を利用するもの、油、グリセリン、強
硫酸、空気等の流体の粘性を利用するもの、がある。こ
れらのうち、渦電流を利用するものは、磁気ダンパ装置
として知られているもので、割振度を比較的容易に調整
し得る点で広く用いられている。(Prior art) Generally, as a device for removing vibrations from moving parts of machinery,
A damper device is used. These damper devices can be broadly classified into those that utilize eddy currents and those that utilize the viscosity of fluids such as oil, glycerin, strong sulfuric acid, and air. Among these, those that utilize eddy currents are known as magnetic damper devices, and are widely used because the degree of allocation can be adjusted relatively easily.
ところで、従来における磁気ダンパ装置では、コの字状
の磁石コアに１枚の導体板を通過させることにより制振
を行りていたが、必ずしも十分なものではなかった。By the way, in conventional magnetic damper devices, vibration damping was performed by passing one conductive plate through a U-shaped magnet core, but this was not always sufficient.
（発明が解決しようとする問題点）
本発明は、上記事情を勘案してなされたもので、従来よ
りもすぐれた割振作用を奏する磁気ダンパ装置を提供す
ることを目的どする。(Problems to be Solved by the Invention) The present invention has been made in consideration of the above circumstances, and an object of the present invention is to provide a magnetic damper device that exhibits a better distribution effect than the conventional one.
（問題点を解決するための手段と作用）導体板をコの字
状の磁石コアに遊挿させ磁束を横切らせることにより、
制振を行う磁気ダンパ装置において、導体板を複数枚の
単板より構成し、割振作用を向上させたものである。(Means and actions for solving the problem) By loosely inserting the conductor plate into the U-shaped magnet core and causing the magnetic flux to cross,
In a magnetic damper device for damping vibrations, the conductor plate is composed of a plurality of single plates to improve the distribution effect.
（実施例） 以下に、本発明の一実施例を図面を参照して詳述する。(Example) An embodiment of the present invention will be described in detail below with reference to the drawings.
第１図は、この実施例の磁気ダンパ装置を示している。FIG. 1 shows the magnetic damper device of this embodiment.
この装置は、制振されるべき被制振部（１）と、との被
制振部（１，）を渦電流を利用して割振する割振部（２
）とからなっている。しかして、被制振部（１）は、長
手方向が矢印（３）方向に設けられた案内棒（４）と、
この案内棒（４）に矢印（３）方向に摺動自在に貫装さ
れたテーブル（５）と、このテーブル（５）の進退駆動
を行う駆動機構（図示せず。）と、テーブル（５）の一
方の側面に突設された例えば銅などの電気的良導体から
なる導体板（６）とからなっている。この導体板（６）
は、薄い単板（７）・・・が接着剤を介して重層されて
なるものである。一方、制振部（２）は、案内棒（４）
の導体板（６）側に隣接して設けられた基台（８）と、
この基台（８）上に一体的に取付けられた断面コの字状
の永久磁石からなる磁石コア（９）とからなっている。This device includes a damped part (1) to be damped and an allocation part (2) that allocates the damped part (1,) using eddy current.
). Therefore, the damped part (1) includes a guide rod (4) whose longitudinal direction is provided in the direction of the arrow (3),
A table (5) that is slidably inserted in the guide rod (4) in the direction of the arrow (3), a drive mechanism (not shown) that drives the table (5) forward and backward, and a table (5) ) and a conductor plate (6) made of a good electrical conductor, such as copper, protruding from one side surface of the conductor plate (6). This conductor plate (6)
is made up of thin veneers (7) stacked together with an adhesive interposed therebetween. On the other hand, the damping part (2) is connected to the guide rod (4).
a base (8) provided adjacent to the conductor plate (6) side of the
It consists of a magnet core (9) made of a permanent magnet having a U-shaped cross section and integrally mounted on the base (8).
そうして、この磁気コア（９）は、導体板（６）が、遊
挿状態で矢印（３）方向に通過できるように設定されて
いる。The magnetic core (9) is configured such that the conductor plate (6) can pass through it in the direction of the arrow (3) in a loosely inserted state.
つぎに、上記構成の磁気ダンパ装置の作動について述べ
る。Next, the operation of the magnetic damper device having the above configuration will be described.
まず、図示せぬ駆動機構によりテーブル（５）を磁石コ
ア（９）位置に停止させ位置決めする。すると、導体板
（６）が磁石コア（９）の磁束を横切ることにより導体
板（６）に渦電流が発生する。その結果、発生した渦電
流による粘性（制振）力により、テーブル（５）は、矢
印（３）方向に減衰振動する。ところで、導体板（６）
は、複数枚の単板（７）・・・からなっているので、厚
さは同じでも導体板（６）が１枚からなっている場合に
比べて１．５倍以上の制振力をテーブル（５）Ｋ対して
及ぼすことができる。したがって、テーブル（５）は、
十分な制振作用により所望位置に確実かつ迅速に静止さ
せることができる。First, the table (5) is stopped and positioned at the magnet core (9) position by a drive mechanism (not shown). Then, as the conductor plate (6) crosses the magnetic flux of the magnet core (9), an eddy current is generated in the conductor plate (6). As a result, the table (5) undergoes damped vibration in the direction of the arrow (3) due to the viscous (damping) force caused by the generated eddy current. By the way, the conductor plate (6)
Since it is made up of multiple single plates (7)..., it has more than 1.5 times the damping force compared to the case where the conductor plate (6) is made of one piece even though the thickness is the same. Table (5) can be applied to K. Therefore, table (5) is
Sufficient vibration damping action allows it to be stopped at a desired position reliably and quickly.
なお、磁石コアとしては、永久磁石の代りに電磁石を用
いてもよい。さらに、テーブル（５）側に磁石コア（９
）を取付け、基台（８）側に導体板ｍを取付けるように
してもよい。Note that as the magnet core, an electromagnet may be used instead of a permanent magnet. Furthermore, a magnet core (9) is placed on the table (5) side.
) may be attached, and the conductor plate m may be attached to the base (8) side.
本発明の磁気ダンパ装置は、割振力を発生させるための
導体板を複数板の単板により構成したので、１枚の単板
により導体板を構成する場合に比べて割振力が増大し、
ダンパ機能が向上する。In the magnetic damper device of the present invention, the conductor plate for generating the allocation force is composed of a plurality of single plates, so the allocation force is increased compared to the case where the conductor plate is composed of one single plate.
Damper function is improved.
第１図は本発明の一実施例の磁気ダンパ装置の構成図、
第２図は同じく導体板を示す図である。
（１）：被制振部、 （２＞ ：制振部。
（６）：導体板、 （７） ：単 板。
（９）：磁石コア。
代理人 弁理士 則 近 憲 佑
同 松山光之
１ ネＬ′ｆＰＩ１１に屹部
第２図FIG. 1 is a configuration diagram of a magnetic damper device according to an embodiment of the present invention,
FIG. 2 is a diagram similarly showing the conductor plate. (1): Damped part, (2>: Damped part. (6): Conductor plate, (7): Single plate. (9): Magnetic core. Agent: Patent attorney Noriyuki Chika Yudo Mitsuyuki Matsuyama 1. Fig. 2 of the figure 2 on L'f PI11.
Claims (1)
気的良導体である導体板及びこの導体板が遊挿自在に設
けられ上記導体板により横切られる磁束を発生する磁石
コアを有し上記導体板及び上記磁石コアのうちいずれか
一方が上記被制振部に設けられた制振部とを具備する磁
気ダンパ装置において、上記導体板は複数の単板の積層
からなることを特徴とする磁気ダンパ装置。It has a vibration damped part provided movably along the guiding direction, a conductor plate which is a good electrical conductor, and a magnet core which is provided so as to be loosely inserted into the conductor plate and generates a magnetic flux traversed by the conductor plate. In the magnetic damper device, in which either one of the conductor plate and the magnet core includes a vibration damping section provided in the vibration damped section, wherein the conductor plate is made of a lamination of a plurality of single plates. magnetic damper device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62265328A JPH01108431A (en) | 1987-10-22 | 1987-10-22 | Magnetic damper device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62265328A JPH01108431A (en) | 1987-10-22 | 1987-10-22 | Magnetic damper device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01108431A true JPH01108431A (en) | 1989-04-25 |
Family
ID=17415665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62265328A Pending JPH01108431A (en) | 1987-10-22 | 1987-10-22 | Magnetic damper device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01108431A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04254027A (en) * | 1991-02-04 | 1992-09-09 | Fuji Elelctrochem Co Ltd | Magnetic damper device |
| US5736798A (en) * | 1995-10-19 | 1998-04-07 | Eastman Kodak Company | Passive magnetic damper |
| EP1077157A2 (en) * | 1999-08-19 | 2001-02-21 | Delta Tooling Co., Ltd. | Vibration relief apparatus and magnetic damper mechanism therefor |
| JP2006322531A (en) * | 2005-05-18 | 2006-11-30 | Oiles Ind Co Ltd | Air slider with aerostatic journal bearing |
| JP2011117602A (en) * | 2009-11-30 | 2011-06-16 | Itt Manufacturing Enterprises Inc | Frequency-tunable magnetic damping apparatus |
| WO2012040618A3 (en) * | 2010-09-23 | 2013-10-17 | Pepka Charles F | Magnetic damper |
| EP2696072A1 (en) * | 2012-08-10 | 2014-02-12 | Wölfel Beratende Ingenieure GmbH & Co. KG | Vibration absorber for wind power plants with mass pendulum and eddy currant damper |
| CN104132086A (en) * | 2014-07-28 | 2014-11-05 | 山西大学 | Electromagnetic damping device with asymmetric planes |
-
1987
- 1987-10-22 JP JP62265328A patent/JPH01108431A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04254027A (en) * | 1991-02-04 | 1992-09-09 | Fuji Elelctrochem Co Ltd | Magnetic damper device |
| US5736798A (en) * | 1995-10-19 | 1998-04-07 | Eastman Kodak Company | Passive magnetic damper |
| EP1077157A2 (en) * | 1999-08-19 | 2001-02-21 | Delta Tooling Co., Ltd. | Vibration relief apparatus and magnetic damper mechanism therefor |
| EP1077157A3 (en) * | 1999-08-19 | 2001-04-18 | Delta Tooling Co., Ltd. | Vibration relief apparatus and magnetic damper mechanism therefor |
| JP2006322531A (en) * | 2005-05-18 | 2006-11-30 | Oiles Ind Co Ltd | Air slider with aerostatic journal bearing |
| JP2011117602A (en) * | 2009-11-30 | 2011-06-16 | Itt Manufacturing Enterprises Inc | Frequency-tunable magnetic damping apparatus |
| WO2012040618A3 (en) * | 2010-09-23 | 2013-10-17 | Pepka Charles F | Magnetic damper |
| US9457635B2 (en) | 2010-09-23 | 2016-10-04 | Renton Coil Spring Company | Magnetic damper |
| EP2696072A1 (en) * | 2012-08-10 | 2014-02-12 | Wölfel Beratende Ingenieure GmbH & Co. KG | Vibration absorber for wind power plants with mass pendulum and eddy currant damper |
| CN104132086A (en) * | 2014-07-28 | 2014-11-05 | 山西大学 | Electromagnetic damping device with asymmetric planes |
| CN104132086B (en) * | 2014-07-28 | 2015-12-30 | 山西大学 | Planar unsymmetrical electromagnetic damper |
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