JP2681690B2 - Isotropic anti-vibration equipment - Google Patents
Isotropic anti-vibration equipmentInfo
- Publication number
- JP2681690B2 JP2681690B2 JP1107300A JP10730089A JP2681690B2 JP 2681690 B2 JP2681690 B2 JP 2681690B2 JP 1107300 A JP1107300 A JP 1107300A JP 10730089 A JP10730089 A JP 10730089A JP 2681690 B2 JP2681690 B2 JP 2681690B2
- Authority
- JP
- Japan
- Prior art keywords
- vibration
- mount
- mount member
- mounting assembly
- proof
- 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 - Lifetime
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- Vibration Prevention Devices (AREA)
Description
【発明の詳細な説明】 [産業上の利用分野] この発明は機器等の等方性防振装架装置、より詳細に
述べると、機器の本体をあらゆる方向からの振動を受け
ることのないように機器のベースに装架する装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an isotropic vibration isolator, such as a device. More specifically, the main body of the device is protected from vibrations from all directions. The present invention relates to a device mounted on the base of a device.
[発明の背景] とくに、航空および宇宙関係の技術分野においては、
航走機に搭載する機器はそのベースに対して、あらゆる
軸線方向に等方性を保ち、振動を受けることなく、安定
して支持されることが必要とされる。BACKGROUND OF THE INVENTION Especially in the technical fields of aviation and space,
The equipment mounted on the seaplane is required to be isotropic with respect to its base in all axial directions and to be stably supported without vibration.
機器本体をそのベースに対して等方的に防振支持する
とは、被防振体に設定される直交する3軸のすべての方
向の防振性、つまり防振系の共振周波数と共振時の振動
伝達率とを等しくすることである。Isotropic vibration-proof support of the device body with respect to its base means vibration-proof performance in all directions of the three orthogonal axes set on the vibration-proof body, that is, the resonance frequency of the vibration-proof system and resonance. To equalize the vibration transmissibility.
また、安定して防振支持するとは、被防振体が振動を
呈するときに、支持手段の不均衡によって、被防振体が
回転あるいは旋回する揺れの発生をできるだけ阻止する
ように支持することである。Further, stable vibration-proof support means that when the vibration-isolated body vibrates, the vibration-proof body is supported so as to prevent the vibration of the vibration-proof body from rotating or turning due to the imbalance of the supporting means. Is.
以上のような機器の防振支持について、従来の技術に
おいては、単独で等方特性を有する防振装架装置を4個
使用して被防振体を支持し、しかも角防振装架装置を被
防振体の重心を含む平面内において重心について対称的
な位置に配設するようにしていた。Regarding the vibration-proof support of the above-mentioned equipment, in the conventional technology, four vibration-isolation mount devices having an isotropic characteristic are independently used to support a vibration-isolated body, and a corner vibration-isolation mount device is also used. Are arranged at positions symmetrical with respect to the center of gravity within a plane including the center of gravity of the vibration-isolated body.
この種の防振装架装置は、その設計および製作が容易
でないために、所定の構造のものが製品とされ、被防振
体に既製の防振装架装置を選択して使用するのが一般的
である。Since this type of vibration isolator is not easy to design and manufacture, it has a predetermined structure as a product, and it is not possible to select and use a ready-made vibration isolator for the vibration-isolated body. It is common.
しかし、防振装架装置はその構造の複雑さのために、
その特性についても、きわめて多くの制約を受けるもの
である。たとえば、被防振体の質量が極度に小さい場合
に、既製の防振装架装置の最小寸法のものを選択して、
これを適用しても、共振周波数を必要とする低周波にま
で降下することができないという不都合があった。However, due to the complexity of its construction
Its characteristics are also subject to numerous restrictions. For example, if the mass of the vibration-isolated body is extremely small, select the smallest off-the-shelf vibration isolator and
Even if this is applied, there is a disadvantage that the resonance frequency cannot be lowered to a required low frequency.
また、機器の要求に応じて、従来の防振装架装置を基
礎に、新たに設計して製作する場合には、所望の要件を
満たすため、理論的な計算によって従来装置の複雑な形
状の各部の寸法を算出する。その際、複雑な形状は適
宜、単純な形状に近似して計算をおこなう。このように
して特注の防振装架装置を製作するのがならわしとされ
ている。しかし、このような形で製作すると、形成部位
に幾つかの誤差が加わって、目標とする特性を十分に満
足させることが困難である。こうした誤差を許容できる
範囲にまで軽減しようとするには、多大の時間と経費が
加わり、解決を要すべき問題とされている。In addition, according to the requirements of the equipment, when newly designing and manufacturing based on the conventional anti-vibration mounting device, in order to meet the desired requirements, theoretical calculation is used to calculate the complicated shape of the conventional device. Calculate the dimensions of each part. At that time, a complicated shape is appropriately approximated to a simple shape for calculation. In this way, it is customary to manufacture a custom vibration isolator. However, when manufactured in such a form, some errors are added to the formation site, and it is difficult to sufficiently satisfy the target characteristics. In order to reduce such an error to an acceptable range, it takes a lot of time and cost and is a problem that needs to be solved.
[発明の目的] 以上の問題点を考慮して、この発明の主目的は構造が
簡単で経済的に製作することができる機器の防振装架装
置を提供することにある。[Object of the Invention] In view of the above problems, a main object of the present invention is to provide an anti-vibration device for a device which has a simple structure and can be economically manufactured.
この発明の目的はまた、極めて小型で、被防振体の質
量が小さいものに使用した場合に、従来装置では得られ
なかった低周波領域にまで防振支持系の共振周波数を低
下させることができる機器の防振装架装置を提供するこ
とにある。Another object of the present invention is to reduce the resonance frequency of a vibration isolation support system to a low frequency range which cannot be obtained by a conventional device when it is used in an extremely small vibration isolation body with a small mass. An object of the present invention is to provide an anti-vibration mounting device for equipment.
この発明の目的は、機器の必要に応じて理論的な計算
に基づいて製作しても、目標とする特性に対する誤差が
きわめて小さくて、容易に製作することができる機器の
防振装架装置を提供することにある。An object of the present invention is to provide an anti-vibration device for a device that can be easily manufactured even if the device is manufactured based on theoretical calculation as required, and the error with respect to the target characteristics is extremely small. To provide.
[発明の構成] この発明の好ましい実施態様を添付図面について詳細
に説明する。被防振体として四角形の機器本体10はこれ
を装架するための四角形のベース12に、その4カ所のコ
ーナにおいて、防振マウント部材14と2個の部材20,22
から成る装架組立体16とによって取りつけられる。[Configuration of the Invention] Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The device main body 10 having a quadrangular shape as a vibration-isolated body has a quadrangular base 12 for mounting the vibration-damped body, and a vibration-proof mount member 14 and two members 20, 22 at four corners thereof.
And a mounting assembly 16 consisting of.
ベース12に機器本体10を取りつけるために、ベース12
の4カ所のコーナのそれぞれには直立する支柱18が形成
してある。これらの支柱18の各々に、装架組立体18を構
成する第一の部材20を固定し、機器10の対向するコーナ
に装架組立体16の第二の部材22を固定する。そして、こ
れら装架組立体16第一の部材20と第二の部材22とを上下
1対の防振マウント部材14にて接続する(第4図)。To attach the device body 10 to the base 12,
Upright columns 18 are formed at each of the four corners. A first member 20 constituting the mounting assembly 18 is fixed to each of these columns 18, and a second member 22 of the mounting assembly 16 is fixed to an opposite corner of the device 10. Then, the first member 20 and the second member 22 of these mounting assemblies 16 are connected by a pair of upper and lower vibration isolation mount members 14 (FIG. 4).
防振マウント部材14は第3図に示すようにゴム製の円
柱24を中央に、その長手方向の両端にフランジ26を具備
する装着ねじ金具28を取りつけて成る。As shown in FIG. 3, the vibration-proof mounting member 14 has a rubber column 24 at the center and mounting screw fittings 28 having flanges 26 at both ends in the longitudinal direction thereof.
さて、四角形のベース12の各コーナに上下1対、合計
8個とりつけられる防振マンウント部材14は、機器本体
10の重心Gに関して、空間的に対称な位置と向きとをも
って配置する。すなわち、機器本体10の重心Gを原点と
する座標系(X,Y,Z)を考慮に入れて、防振マウント部
材14の向きをゴム円柱24の長手中心軸線C−Cの方向に
よって表すと、次のような位置と向きとをとって配置さ
れる。By the way, the vibration isolation mount member 14 which is attached to the corners of the rectangular base 12 in a pair of top and bottom, a total of eight, is the device body.
The center of gravity G of 10 is arranged with a spatially symmetrical position and orientation. That is, taking the coordinate system (X, Y, Z) with the center of gravity G of the device body 10 as the origin into consideration, the direction of the vibration isolation mount member 14 is represented by the direction of the longitudinal center axis C-C of the rubber cylinder 24. , Are arranged with the following positions and orientations.
8個の防振マウント部材14は座標系のすべての軸(X,
Y,Z)に対して対称で、しかもこれらの軸に対してそれ
ぞれ等しい角度をとって斜向(スキュー)している。Eight vibration-proof mounting members 14 are used for all axes (X,
They are symmetric with respect to Y, Z) and are skewed at equal angles with respect to these axes.
ここにおいて、軸(X,Y,Z,)についての等角は54.736
゜に該当する。Where the isometric angle for the axes (X, Y, Z,) is 54.736.
It corresponds to ゜.
その理由を詳述すると、次の通りである。まず、第10
図(1)を参照して、三次元の空間内におけるX,Y,Zの
等角αをなす長さlのベクトルAを考える。The reason will be described in detail below. First, the tenth
With reference to FIG. 1A, consider a vector A having a length l and forming an equiangular angle α of X, Y and Z in a three-dimensional space.
このベクトルから、座標X,Y,Zへ直接投影した時のベ
クトルB,C,Dの長さはいずれもlcosαである。The lengths of the vectors B, C, and D when these vectors are directly projected onto the coordinates X, Y, and Z are lcosα.
ところで、この座標軸へ投影した長さを別の方法で求
めてみると、次の通りである。By the way, when the length projected onto the coordinate axes is obtained by another method, it is as follows.
第10図(2)に示すように、ベクトルAをYZ平面に投
影したベクトルEの長さはlcos(90゜−α)=lsinαで
ある。x軸とベクトルAを含む平面とYZ平面とが交わる
線の上にベクトルEがある。As shown in FIG. 10 (2), the length of the vector E obtained by projecting the vector A on the YZ plane is lcos (90 ° −α) = lsinα. The vector E is located on the line where the plane including the x-axis and the vector A and the YZ plane intersect.
このベクトルEをY軸の上に投影したベクトルαの長
さは lsinαcos45゜となる。The length of the vector α obtained by projecting this vector E on the Y axis is lsinα cos 45 °.
このベクトルEはベクトルCと一致するために、次の
関係が成り立つ。Since this vector E matches the vector C, the following relationship holds.
以上からして、X軸、Y軸、Z軸に対する等角は54.7
36゜となる。 From the above, the equiangular angle with respect to the X-axis, Y-axis and Z-axis is 54.7
It becomes 36 °.
したがって、各防振マウント部材14の軸線C−Cを、
第4図に示すように、機器本体10の重心Gを通る軸線X
−Xに対して54.736゜の等角をもってスキューするため
に、装架する組立体16の第一の部材20と第二の部材22と
は、ゴム円柱24の長手軸線C−Cが前記等角をなすよう
に対向して平行するように、それぞれ傾斜面30,31;32,3
3を具備する。Therefore, the axis C-C of each anti-vibration mount member 14 is
As shown in FIG. 4, an axis line X passing through the center of gravity G of the device body 10
In order to skew at −54.736 ° with respect to −X, the first member 20 and the second member 22 of the assembly 16 to be mounted are arranged such that the longitudinal axis CC of the rubber cylinder 24 is the same angle. Slanted surfaces 30, 31; 32, 3 so that they face each other and are parallel to each other.
Equipped with 3.
防振マウント部材14を以上に述べたように配置するこ
とについて、さらに具体的に説明する。Arranging the vibration-damping mount member 14 as described above will be described more specifically.
第5図に示すように、各防振マウント部材14を座標軸
YとZとで形成される平面に投影すると、原点Oを通り
Y,Z軸とそれぞれ45゜の角度をなす直線上で原点Oから
等しい距離に投影する。そして各防振マウント部材14の
長手中心軸線C−Cは前記Y,Z軸に対して45゜の角度を
なす直線上に投影する。As shown in FIG. 5, when each anti-vibration mount member 14 is projected on the plane formed by the coordinate axes Y and Z, it passes through the origin O.
Project from the origin O at equal distances on straight lines that make an angle of 45 ° with the Y and Z axes, respectively. The longitudinal center axis C-C of each anti-vibration mount member 14 is projected on a straight line forming an angle of 45 ° with the Y and Z axes.
次に、各防振マウント部材14をX−Y平面に投影する
と、第6図に示すように、各防振マウント部材14の軸線
C−CはX,Y軸に対して45゜の角度をなす直線上に、原
点Oから等距離をとって投影するが、一般に、この場合
には軸線C−Cは原点Oを通過しない。Next, when each antivibration mount member 14 is projected onto the XY plane, as shown in FIG. 6, the axis C-C of each antivibration mount member 14 forms an angle of 45 ° with respect to the X and Y axes. The projection is made on the straight line formed at an equal distance from the origin O, but in general, in this case, the axis C-C does not pass through the origin O.
また、防振マウント部材14をX−Z面について投影す
ると、第7図に示すようで、X−Y面への投影と全く同
様な関係をとる。Further, when the anti-vibration mount member 14 is projected on the XZ plane, it is as shown in FIG. 7, and has the same relationship as the projection on the XY plane.
[発明の作用と効果] この発明によれば、機器本体10は以上に述べたように
して、防振装架装置によって支持されるので、次に述べ
るような特徴がある。すなわち、 (1)座標軸X,Y,Zの各軸方向についてのばね定数が等
しい。つまり、ばね定数は、第8図に示すように、ゴム
円柱24の軸線C−C方向のばね定数Kcと軸線C−Cに対
して直角方向、すなわち、せん断方向のばね定数Ksとの
合成となる(第9図)。[Operation and Effect of the Invention] According to the present invention, since the device body 10 is supported by the vibration isolator as described above, it has the following features. That is, (1) the spring constants are the same in the directions of the coordinate axes X, Y, and Z. That is, as shown in FIG. 8, the spring constant is a combination of the spring constant Kc of the rubber cylinder 24 in the axis C-C direction and the spring constant Ks in the direction perpendicular to the axis C-C, that is, in the shearing direction. (Fig. 9).
(2)ゴム円柱24が単純な円筒形であるから、ばね定数
の計算が簡単であり、計算結果について信頼性が高い。(2) Since the rubber cylinder 24 is a simple cylinder, the calculation of the spring constant is easy and the calculation result is highly reliable.
(3)機器本体をバランスのとれた安定した状態で支持
することができる。(3) The device body can be supported in a balanced and stable state.
(4)防振マウント部材は強度について許容可能な範囲
で、寸法を小さくすることができる。(4) The size of the vibration-proof mount member can be reduced within an allowable range of strength.
したがって、機器本体が軽量な時でも、共振周波数を
満足できる低周波数にまで下げることが可能である。Therefore, even when the device body is lightweight, it is possible to reduce the resonance frequency to a low frequency that can be satisfied.
(5)さらに、この発明によれば、機器本体10が8個の
防振マウント部材14によって、スキュー方向から包囲さ
れた状態で支持される。したがって機器本体10は、どの
方向の動きに対してもいずれかの防振マウント部材14
が、その作用を受けて、ゴム円柱24に圧縮力が働く。し
かしゴムは圧縮力に対する強度が大きいために、装架装
置自体の強度がすこぶるすぐれたものとなる。(5) Further, according to the present invention, the device body 10 is supported by the eight vibration-proof mount members 14 in a state of being surrounded from the skew direction. Therefore, the device main body 10 is configured so that the vibration-proof mounting member 14 can be moved against any movement in any direction.
However, due to the action, a compression force acts on the rubber cylinder 24. However, since the rubber has a high strength against a compressive force, the strength of the mounting device itself is extremely excellent.
結局、この発明においては、被防振体としての機器本
体10を8個の防振マウント部材14でスキュー方式に支持
するので、強度の上で安定しているばかりでなく、等方
性の低周波防振効果が達成される。また、防振マウント
部材14の各々は、等方性を持つ必要がないので、比較的
に簡単な形状で経済的に製作することが可能である。After all, in the present invention, since the device main body 10 as the vibration-isolated body is supported by the eight vibration-proof mount members 14 in a skew method, not only is it stable in strength, but also low in isotropy. The frequency vibration isolation effect is achieved. Further, since each of the anti-vibration mount members 14 does not need to have isotropic property, it can be economically manufactured with a relatively simple shape.
第1図はこの発明の防振装架装置を用いて機器本体をベ
ースに取りつけた状態を示す平面図、第2図は第1図の
正面図、第3図はこの発明による防振装架装置の防振マ
ウント部材の正面図、第4図は第1図の線IV−IVに沿い
矢印方向に見た部分断面図、第5図ないし第7図は防振
マウント部材の配置を座標面に投影して説明する略図、
第8図と第9図とは防振マウント部材についてのばね定
数の計算を説明するための略線図、第10図(1)と
(2)とは、この発明の防振マウント部材が座標軸X,Y,
Zについて等しく54.736゜の角度をもってスキューして
いることを説明するための略図、そして第11図はこの発
明の防振装架装置の全体の構成を示す斜視図である。 図面における主な参照数字を列挙すると次の通りであ
る。 10……機器本体 12……ベース 14……防振マウント部材 16……装架組立体 18……支柱 20……16の第一の部材 22……16の第二の部材 24……ゴム円柱 28……取付け金具 30,31,32,33……傾斜面部FIG. 1 is a plan view showing a state in which a device body is mounted on a base by using the vibration damping device of the present invention, FIG. 2 is a front view of FIG. 1, and FIG. 3 is a vibration damping device according to the present invention. The front view of the anti-vibration mount member of the apparatus, FIG. 4 is a partial sectional view taken along the line IV-IV of FIG. 1 as seen in the direction of the arrow, and FIGS. 5 to 7 show the arrangement of the anti-vibration mount member on the coordinate plane. Schematic diagram projected and explained on
8 and 9 are schematic diagrams for explaining the calculation of the spring constant of the antivibration mount member, and FIGS. 10 (1) and 10 (2) show that the antivibration mount member of the present invention has coordinate axes. X, Y,
FIG. 11 is a schematic view for explaining that Z is equally skewed at an angle of 54.736 °, and FIG. 11 is a perspective view showing the entire structure of the vibration isolator. The main reference numerals in the drawings are listed below. 10 …… Equipment body 12 …… Base 14 …… Anti-vibration mount member 16 …… Mounting assembly 18 …… Strut 20 …… 16 first member 22 …… 16 second member 24 …… Rubber cylinder 28 …… Mounting bracket 30,31,32,33 …… Sloping surface
───────────────────────────────────────────────────── フロントページの続き (72)発明者 福本 靖彦 東京都渋谷区道玄坂1丁目21番6号 日 本航空電子工業株式会社内 (56)参考文献 特開 昭53−20250(JP,A) 特公 昭31−6911(JP,B1) ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Yasuhiko Fukumoto 1-21-6 Dogenzaka, Shibuya-ku, Tokyo Nihon Aviation Electronics Industry Limited (56) References Japanese Patent Laid-Open No. 53-20250 (JP, A) Kosho 31-6911 (JP, B1)
Claims (3)
の各コーナに直立する支柱を設けたことと、前記支柱の
各々の内側に上下一対の防振マウント部材を支持する第
一の部材と第二の部材とから成る装架組立体を固定した
ことと、前記装架組立体の前記第一の部材と第二の部材
とに前記防振マウント部材の長手方向の軸線を前記機器
本体の重心を通って直交する座標軸について等角のスキ
ュー方向に支持したこととから成る等方性防振装架装
置。1. A quadrangle base on which a rectangular device body is mounted is provided with upright columns at respective corners, and a first member for supporting a pair of upper and lower vibration isolation mount members inside each of the columns. And a second member is fixed, and a longitudinal axis of the vibration isolation mount member is attached to the first member and the second member of the mounting assembly. An isotropic vibration isolator, which is supported in a skew direction equiangular with respect to a coordinate axis orthogonal to the center of gravity of the.
第一と第二の部材とにそれぞれ固定する金具と、前記両
金具の間に配設したゴム円柱とから成るものとした請求
項1に記載の装置。2. A metal fitting for fixing the anti-vibration mount member to each of the first and second members of the mounting assembly, and a rubber cylinder arranged between the both fittings. The apparatus according to Item 1.
心を通って直交する座標軸に等角のスキュー方向に支持
するために、前記装架組立体の第一の部材と、第二の部
材とに傾斜支持面を設けて成る請求項1に記載の装置。3. A first member and a second member of the mounting assembly for supporting the anti-vibration mount member in a skew direction equiangular to coordinate axes orthogonal to each other through a center of gravity of the device body. An apparatus according to claim 1, wherein the inclined support surfaces are provided on and.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1107300A JP2681690B2 (en) | 1989-04-28 | 1989-04-28 | Isotropic anti-vibration equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1107300A JP2681690B2 (en) | 1989-04-28 | 1989-04-28 | Isotropic anti-vibration equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH02286937A JPH02286937A (en) | 1990-11-27 |
JP2681690B2 true JP2681690B2 (en) | 1997-11-26 |
Family
ID=14455601
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1107300A Expired - Lifetime JP2681690B2 (en) | 1989-04-28 | 1989-04-28 | Isotropic anti-vibration equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2681690B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111215887A (en) * | 2019-12-04 | 2020-06-02 | 上海航天控制技术研究所 | Error-proof combined device for quick assembly alignment of sensitive package |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2671795B2 (en) * | 1993-12-27 | 1997-10-29 | 日本電気株式会社 | Anti-vibration bracket |
JP3978861B2 (en) * | 1998-04-22 | 2007-09-19 | 株式会社Ihi | Payload buffer support mechanism |
JP4078712B2 (en) * | 1998-06-10 | 2008-04-23 | 株式会社Ihi | Payload anti-vibration device |
EP2378157B1 (en) * | 2010-04-16 | 2012-08-22 | Siemens Aktiengesellschaft | Assembly with a cuboid oscillation and/or impact sensitive component |
CN104696404A (en) * | 2014-08-07 | 2015-06-10 | 安阳全丰航空植保科技有限公司 | Vibration reduction device for flight sensor of unmanned aerial vehicle |
WO2017179160A1 (en) * | 2016-04-13 | 2017-10-19 | ポリマテック・ジャパン株式会社 | Unmanned aircraft vibration-damping structure |
CN113998160B (en) * | 2021-11-10 | 2024-04-19 | 中国科学院长春光学精密机械与物理研究所 | Integrated gravity unloading mechanism |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5945598B2 (en) * | 1976-08-10 | 1984-11-07 | 株式会社東芝 | Anti-vibration support device for elevator car |
-
1989
- 1989-04-28 JP JP1107300A patent/JP2681690B2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111215887A (en) * | 2019-12-04 | 2020-06-02 | 上海航天控制技术研究所 | Error-proof combined device for quick assembly alignment of sensitive package |
Also Published As
Publication number | Publication date |
---|---|
JPH02286937A (en) | 1990-11-27 |
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