JPH04133043U - Variable spring constant dynamic vibration damper - Google Patents
Variable spring constant dynamic vibration damperInfo
- Publication number
- JPH04133043U JPH04133043U JP4954691U JP4954691U JPH04133043U JP H04133043 U JPH04133043 U JP H04133043U JP 4954691 U JP4954691 U JP 4954691U JP 4954691 U JP4954691 U JP 4954691U JP H04133043 U JPH04133043 U JP H04133043U
- Authority
- JP
- Japan
- Prior art keywords
- weight
- spring constant
- dynamic vibration
- vibration damper
- rubber
- 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
- 229910000906 Bronze Inorganic materials 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- 239000010974 bronze Substances 0.000 claims description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Vibration Prevention Devices (AREA)
Abstract
(57)【要約】 （修正有）
【目的】 装置の固有振動数に合わせてバネ定数を可変
できる動制振器。
【構成】 ゴム状弾性体１に薄板バネ２を貼り合わせ、
その中央に長孔３を形成し、この長孔３に沿ってオモリ
４を移動できるようにした。
(57) [Summary] (with amendments) [Purpose] A dynamic vibration damper whose spring constant can be varied according to the natural frequency of the device. [Structure] A thin plate spring 2 is attached to a rubber-like elastic body 1,
A long hole 3 is formed in the center, and a weight 4 can be moved along this long hole 3.
Description
【０００１】0001
本考案は、小型機器の共振点に固有振動数を一致させ、共振倍率を低くするこ とのできる固有振動数を可変できる動制振器に関するものである。 This invention lowers the resonance magnification by matching the natural frequency to the resonance point of small equipment. This invention relates to a dynamic vibration damper that can vary the natural frequency.
【０００２】0002
従来の動制振器としては、バネの一端に一定のオモリを固着し、他端を装置に 固定し、装置より突出させて固定させるようにしたもの、あるいは防振機構とし てオイルダンパー、エアーダンパーが使用されている。 In conventional dynamic vibration dampers, a certain weight is fixed to one end of the spring, and the other end is attached to the device. A device that is fixed, protrudes from the device, or has a vibration isolation mechanism. Oil dampers and air dampers are used.
【０００３】0003
従来の動制振器、あるいは防振機構は固有振動数が一定であり、可変すること が不可能なため振動数の異なる対象装置ごとに異なるバネ定数の機器を用意せね ばならない。また動制振器にあっては、低い周波数の装置に対応させるためには 動制振器のバネ定数を低くさせねばならないが、低くさせるように形状を変更す るとゴムの座屈等が発生してしまう。 Conventional dynamic vibration dampers or vibration isolation mechanisms have a constant natural frequency and cannot be changed. Because it is impossible to Must be. In addition, for dynamic vibration dampers, in order to make them compatible with low frequency equipment, The spring constant of the dynamic damper must be lowered, but the shape can be changed to lower it. If this happens, buckling of the rubber will occur.
【０００４】0004
本考案は、ゴム弾性体に金属薄板を貼り合わせ、ゴムの座屈を防止するととも に、この平板バネに長孔を設け、孔内を移動できるように嵌合させた固定具にオ モリを取付けるようにしたものである。 This invention prevents buckling of the rubber by bonding a thin metal plate to a rubber elastic body. First, a long hole is made in this flat spring, and a fixing device is fitted so that it can move inside the hole. It is designed to attach a harpoon.
【０００５】[0005]
次に図面に示す実施例に従って、本考案を説明する。 Next, the present invention will be explained according to the embodiments shown in the drawings.
【０００６】 長方形のゴム１と薄板のリン青銅２とを貼り合わせてあり、この平板バネの長 手方向中央に長孔３を貫通させてある。この長孔３内にはネジ５が嵌合しており 、このネジにはオモリ４が固定されている。平板バネの一端は装置７に固定する ためのネジ穴６があけられている。[0006] A rectangular rubber 1 and a thin plate of phosphor bronze 2 are pasted together, and the length of this flat spring is A long hole 3 is passed through the center in the hand direction. A screw 5 is fitted into this elongated hole 3. , a weight 4 is fixed to this screw. One end of the flat spring is fixed to the device 7. A screw hole 6 is drilled for the purpose.
【０００７】 したがってこの平板バネの一端を装置に固定し、オモリ４をネジ５の長孔３に 沿って移動させることで、バネ定数を変化させることができ固有振動数をコント ロールできる。[0007] Therefore, one end of this flat spring is fixed to the device, and the weight 4 is inserted into the long hole 3 of the screw 5. By moving it along the curve, you can change the spring constant and control the natural frequency. Can roll.
【０００８】 実験例では、オモリ４を装置７より最も離した状態で０．１６kg／cm、２mm近 付けると０．２７kg／cm、４mmにて０．６７kg／cm、６mmにて１．３３kg／cmに バネ定数を可変できた。この状態を図３に示してある。また振動伝達特性図を図 ４に示してあるが、一点鎖線が装置の固有振動数を示し、実線が本考案を取付け た場合の固有振動数を示す。装置の共振時の伝達率が１．５９倍であったものを 本考案を取付けたものは１．１７倍にすることができ良好な結果が得られた。[0008] In the experimental example, the weight was 0.16 kg/cm when the weight 4 was placed farthest from the device 7, and the weight was close to 2 mm. 0.27kg/cm when attached, 0.67kg/cm with 4mm, 1.33kg/cm with 6mm The spring constant can be varied. This state is shown in FIG. In addition, a diagram of vibration transfer characteristics is shown. 4, the dash-dotted line indicates the natural frequency of the device, and the solid line indicates the frequency when the present invention is installed. shows the natural frequency when The transmission rate when the device resonates is 1.59 times. The device equipped with the present invention was able to increase the power by 1.17 times, and good results were obtained.
【０００９】[0009]
本考案によれば、オモリの位置を簡単に調整することで異なる装置のそれぞれ の異なる共振点に合わせて固有振動数を可変できるので、異なる装置に適用でき 、しかも最良の減衰が可能である。 According to the present invention, by easily adjusting the position of the weight, each of different devices can be easily adjusted. The natural frequency can be varied to match the different resonance points of the device, so it can be applied to different devices. , yet the best attenuation is possible.
【００１０】 また、ゴム状弾性体に薄板バネを貼り合わせてあるので、ゴムの座屈が発生し ない。0010 Also, since the thin plate spring is bonded to the rubber-like elastic body, buckling of the rubber will not occur. do not have.
【図１】本考案実施例の斜視図。FIG. 1 is a perspective view of an embodiment of the present invention.
【図２】本考案実施例の側面図。FIG. 2 is a side view of the embodiment of the present invention.
【図３】オモリ移動量と静的バネ定数の関係図。FIG. 3 is a diagram showing the relationship between weight movement and static spring constant.
【図４】振動伝達特性図。[Fig. 4] Vibration transmission characteristic diagram.
１ ゴム ２ リン青銅 ３ 長孔 ４ オモリ ５ ネジ ６ ネジ孔 ７ 装置 1 Rubber 2 Phosphor bronze 3 long hole 4 Weight 5 screws 6 screw hole 7 Equipment
Claims (2)
てなる平板バネに沿ってオモリが移動できるように取付
けてあり、この平板バネの一端を装置に固定するように
したバネ定数可変式動制振器。[Claim 1] A variable spring constant type in which a weight is attached so that it can move along a flat spring made by bonding a rubber-like elastic body and a thin flat spring, and one end of the flat spring is fixed to a device. Dynamic damper.
る平板バネの長手方向中央に設けた長孔内を、オモリを
有する固定具が移動できるようになっており、この平板
バネの長手方向の一端が装置に固定されるようになった
バネ定数可変式動制振器。[Claim 2] A fixing device having a weight is movable in a long hole provided in the longitudinal center of a flat spring made by bonding a rubber plate and a phosphor bronze plate, and the fixing device has a weight. A variable spring constant type dynamic damper with one end fixed to the device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4954691U JPH04133043U (en) | 1991-06-03 | 1991-06-03 | Variable spring constant dynamic vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4954691U JPH04133043U (en) | 1991-06-03 | 1991-06-03 | Variable spring constant dynamic vibration damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04133043U true JPH04133043U (en) | 1992-12-10 |
Family
ID=31927463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4954691U Pending JPH04133043U (en) | 1991-06-03 | 1991-06-03 | Variable spring constant dynamic vibration damper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04133043U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6242654B2 (en) * | 1974-07-22 | 1987-09-09 | Standard Oil Co Ohio |
-
1991
- 1991-06-03 JP JP4954691U patent/JPH04133043U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6242654B2 (en) * | 1974-07-22 | 1987-09-09 | Standard Oil Co Ohio |
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