JPS6217939B2 - - Google Patents
Info
- Publication number
- JPS6217939B2 JPS6217939B2 JP1750582A JP1750582A JPS6217939B2 JP S6217939 B2 JPS6217939 B2 JP S6217939B2 JP 1750582 A JP1750582 A JP 1750582A JP 1750582 A JP1750582 A JP 1750582A JP S6217939 B2 JPS6217939 B2 JP S6217939B2
- Authority
- JP
- Japan
- Prior art keywords
- rubber member
- rubber
- fixed
- rotating machine
- base plate
- 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
Links
- 229920001971 elastomer Polymers 0.000 claims description 67
- 239000005060 rubber Substances 0.000 claims description 67
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 230000001133 acceleration Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000002955 isolation Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Description
【発明の詳細な説明】
本発明は、回転装置支持装置に係り、特に耐震
性のすぐれた回転機支持装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rotating machine support device, and more particularly to a rotating machine support device with excellent earthquake resistance.
従来技術を第１図を用いて説明する。ベースプ
レート２上の回転機１に対する防振を目的とし
て、ベースプレート２と基礎３の間に防振ラバー
４を設けているが、地震時における回転機１のロ
ツキング，スウエイに対してアンカーボルト５が
抵抗し、防振ラバー４は耐震部材として有効に作
用しないという欠点がある。 The prior art will be explained using FIG. For the purpose of vibration isolation for the rotating machine 1 on the base plate 2, a vibration-proofing rubber 4 is provided between the base plate 2 and the foundation 3, but the anchor bolts 5 resist the rocking and sway of the rotating machine 1 during an earthquake. However, the vibration-proofing rubber 4 has the disadvantage that it does not function effectively as an earthquake-resistant member.
本発明の目的は、防振機能と耐震機能の両者を
兼ね備えた、回転機支持装置を提供することにあ
る。 An object of the present invention is to provide a rotating machine support device that has both anti-vibration and earthquake-proof functions.
本発明の回転機支持装置は、ベースプレートを
有する回転機を基礎の上に支持する装置におい
て、ベースプレートに一体に固定され、互いに一
体に構成された剛性の異なる第１ラバー部材と第
２ラバー部材とからなり、前記第２ラバー部材は
前記第１ラバー部材に対して内側に配置され、
又、第１ラバー部材の下側にはスチールプレート
を設け、かつ第１ラバー部材は第２ラバー部材よ
りも垂直剛性が小さく、一方、第２ラバー部材は
第１ラバー部材よりもせん剛性が小さいものであ
り、更に、前記各構成要素間は、
(a) 第１ラバー部材と第２ラバー部材間は固定、
(b) 第１ラバー部材とベースプレート間は固定、
(c) 第１ラバー部材とスチールプレート間は固
定、
(d) スチールプレートと基礎間は摺動可能、
(e) 第２ラバー部材とベースプレート間は摺動可
能、
(f) 第２ラバー部材と基礎間は固定、
の通り構成してなることを特徴とする。 A rotating machine support device of the present invention is a device for supporting a rotating machine having a base plate on a foundation, and includes a first rubber member and a second rubber member that are integrally fixed to the base plate and have different rigidities. the second rubber member is arranged inside the first rubber member,
Further, a steel plate is provided on the lower side of the first rubber member, and the first rubber member has a lower vertical rigidity than the second rubber member, and the second rubber member has a lower shear rigidity than the first rubber member. Further, the components are fixed, (a) the first rubber member and the second rubber member are fixed, (b) the first rubber member and the base plate are fixed, and (c) the first rubber member and the base plate are fixed. The steel plates are fixed, (d) the steel plates and the foundation are slidable, (e) the second rubber member and the base plate are slidable, and (f) the second rubber member and the foundation are fixed. It is characterized by:
ゴムの加工性を考慮して、垂直方向の剛性が低
く、せん断剛性の高いラバーを考える。このラバ
ーを適切に組合わせることによつて防振機能だけ
でなく、耐震機能を有する支持装置が得られる。
防振機能の考え方は、従来技術の防振ラバーと同
じであるが、耐震機能については、回転機支持部
の水平剛性を適切に低減させ、固有周期を長くす
ることによつて、基礎から回転機への地震入力エ
ネルギーを小さくさせることを考えた。 Considering the processability of rubber, consider a rubber with low stiffness in the vertical direction and high shear stiffness. By appropriately combining these rubbers, a supporting device having not only a vibration-proofing function but also an earthquake-proofing function can be obtained.
The idea behind the anti-vibration function is the same as that of conventional anti-vibration rubber, but the anti-seismic function is achieved by appropriately reducing the horizontal rigidity of the rotating machine support and lengthening the natural period. The idea was to reduce the seismic input energy to the machine.
以下、本発明の一実施例を第２図および第３図
により説明する。回転機１下部のベースプレート
２と、基礎３の間に支持ラバー６Ａおよび６Ｂと
第２ラバー７を設ける。第１ラバー６Ａおよび６
Ｂは、ベースプレート２に固定し、基礎３とは固
定していない。さらに第１ラバー６Ａおよび６Ｂ
の下部にはスチールプレート８を取り付けてある
が、このスチールプレート８は摩擦係数が小さ
く、かつ基礎に固定させていない。このため前記
第１ラバー及び第２ラバーの剛性特性と相俟つ
て、回転機、第１ラバー及び第２ラバーからなる
系全体の水平剛性を小さくし、該系全体の固有周
期を長くでき、地震時の応答加速度が低減でき
る。また、第２ラバー７は、左右の支持ラバー６
Ａおよび６Ｂに固定され、さらに、第２ラバー７
の中央部下側は基礎３に固定されている。 An embodiment of the present invention will be described below with reference to FIGS. 2 and 3. Support rubbers 6A and 6B and a second rubber 7 are provided between the base plate 2 at the bottom of the rotating machine 1 and the foundation 3. First rubber 6A and 6
B is fixed to the base plate 2 and not fixed to the foundation 3. Furthermore, the first rubbers 6A and 6B
A steel plate 8 is attached to the lower part of the structure, but this steel plate 8 has a small coefficient of friction and is not fixed to the foundation. Therefore, in combination with the rigidity characteristics of the first rubber and the second rubber, the horizontal rigidity of the entire system consisting of the rotating machine, the first rubber, and the second rubber can be reduced, and the natural period of the entire system can be lengthened. The response acceleration can be reduced. In addition, the second rubber 7 includes left and right support rubbers 6.
A and 6B, and furthermore, the second rubber 7
The central lower side of is fixed to the foundation 3.
使用するラバーの特性を第４図により説明す
る。第４図の横軸はラバーの変形量、縦軸は荷重
を表わしている。図中の一点鎖線が従来使用され
ているラバーの垂直剛性とせん断剛性の平均値と
すると、本発明で使用するラバー部材は、特性Ａ
およびＢに示すように、一方向の垂直剛性が従来
のものより小さく、せん断剛性が大きい部材特性
を有する。このような特性を利用して第１ラバー
６Ａおよび６Ｂは、特性Ａのように上下方向の垂
直剛性が小さく、水平方向のせん断剛性の大きな
部材である。また、第２ラバー７は、特性Ｂのよ
うに水平方向の垂直剛性が小さく、上下方向のせ
ん断剛性の大きな部材である。このような特性を
有するラバー部材は、ゴムの剛性を調節するとと
もに、第５図および第６図のようにゴム１０内へ
のスチールプレート１１の埋込み状態の調節によ
つても製作が可能である。 The characteristics of the rubber used will be explained with reference to FIG. In FIG. 4, the horizontal axis represents the amount of deformation of the rubber, and the vertical axis represents the load. Assuming that the dashed line in the figure is the average value of the vertical stiffness and shear stiffness of conventionally used rubber, the rubber member used in the present invention has the characteristic A
As shown in Figures 1 and 2B, the member has a lower vertical rigidity in one direction than the conventional one and a higher shear rigidity. Utilizing such characteristics, the first rubbers 6A and 6B are members having low vertical rigidity in the vertical direction and high shear rigidity in the horizontal direction, as shown in characteristic A. Furthermore, as shown in characteristic B, the second rubber 7 is a member having low vertical rigidity in the horizontal direction and high shear rigidity in the vertical direction. A rubber member having such characteristics can be manufactured by adjusting the rigidity of the rubber and also by adjusting the embedded state of the steel plate 11 in the rubber 10 as shown in FIGS. 5 and 6. .
本発明における防振機能および耐震機能を第７
図により説明する。通常時、回転機１の自重は、
第７図Ａの如く第１ラバー６Ａおよび６Ｂによつ
て支持される。また、この第１ラバー６Ａおよび
６Ｂの上下方向の垂直剛性が小さいため、第７図
Ｂのように通常時に大きな防振効果が期待でき
る。 The vibration isolation function and earthquake resistance function of the present invention are the seventh
This will be explained using figures. Under normal conditions, the dead weight of rotating machine 1 is
As shown in FIG. 7A, it is supported by first rubbers 6A and 6B. Further, since the vertical rigidity of the first rubbers 6A and 6B in the vertical direction is small, a large vibration damping effect can be expected in normal conditions as shown in FIG. 7B.
地震時において、回転機１のスウエイに対して
は、第７図Ｃの如く第２ラバー７が水平バネとし
て抵抗し、また、ロツキングに対しては、第７図
Ｄの如くせん断剛性を大きくした第２ラバー７の
効果が期待できる。Ｐは地震力の加震方向であ
る。 During an earthquake, the second rubber 7 acts as a horizontal spring to resist the sway of the rotating machine 1 as shown in Figure 7C, and the second rubber 7 resists rocking by increasing shear rigidity as shown in Figure 7D. The effect of the second rubber 7 can be expected. P is the direction of the seismic force.
地震時の効果について、第８図を用いて説明す
る。第８図において、横軸が周期、縦軸が加速度
（応答加速度）である。応答加速度は一般に系の
固有周期に対して、第８図のようになつている。
本発明では第２ラバー７の水平方向の垂直剛性を
小さくすることで、系全体の固有周期が長くな
り、それに従い応答加速度が小さく（T0→T2）1
なり、回転機および基礎部分に加わる地震エネル
ギーが大巾低減される。 The effects during an earthquake will be explained using Figure 8. In FIG. 8, the horizontal axis is the period, and the vertical axis is the acceleration (response acceleration). Generally, the response acceleration is as shown in FIG. 8 with respect to the natural period of the system.
In the present invention, by reducing the vertical stiffness of the second rubber 7 in the horizontal direction, the natural period of the entire system becomes longer, and the response acceleration decreases accordingly (T 0 → T 2 ) 1
As a result, the seismic energy applied to the rotating machine and the foundation is significantly reduced.
本発明によれば、回転機の防振機能に加えて、
ラバーの特性により、固有周期を長くすることが
でき、地震応答を小さく抑えることができる。 According to the present invention, in addition to the anti-vibration function of the rotating machine,
Due to the characteristics of rubber, the natural period can be lengthened and seismic response can be kept small.
第１図は従来の回転機支持装置の構造図、第２
図は本発明の好適な一実施例である回転機支持装
置の構造図、第３図は第２図の―断面図、第
４図は第２図の装置で使用するラバーの特性を示
す説明図、第５図および第６図はラバーの一例の
構造図、第７図は第２図の装置の防振および耐震
機能を示すもので、ＡおよびＢは通常時の機能
を、ＣおよびＤは地震時の機能をそれぞれ示して
いる説明図、第８図は第２図の装置における地震
応答低減効果を示す説明図である。
１……回転機、２……ベースプレート、３……
基礎、６Ａ，６Ｂ……第１ラバー、７……第２ラ
バー、８……スチールプレート。
Figure 1 is a structural diagram of a conventional rotating machine support device, Figure 2
The figure is a structural diagram of a rotating machine support device that is a preferred embodiment of the present invention, Figure 3 is a cross-sectional view of Figure 2, and Figure 4 is an explanation showing the characteristics of the rubber used in the device shown in Figure 2. Figures 5 and 6 are structural diagrams of an example of rubber, and Figure 7 shows the anti-vibration and seismic functions of the device in Figure 2, where A and B are normal functions, and C and D. 8 is an explanatory diagram showing the functions during an earthquake, and FIG. 8 is an explanatory diagram showing the seismic response reduction effect of the device of FIG. 1...Rotating machine, 2...Base plate, 3...
Foundation, 6A, 6B...first rubber, 7...second rubber, 8...steel plate.
Claims (1)
支持する装置において、ベースプレートに一体に
固定され、互いに一体に構成された剛性の異なる
第１ラバー部材と第２ラバー部材とからなり、前
記第２ラバー部材は前記第１ラバー部材に対して
内側に配置され、又、第１ラバー部材の下側には
スチールプレートを設け、かつ第１ラバー部材は
第２ラバー部材よりも垂直剛性が小さく、一方、
第２ラバー部材は第１ラバー部材よりもせん剛性
が小さいものであり、更に、前記各構成要素間
は、 (a) 第１ラバー部材と第２ラバー部材間は固定、 (b) 第１ラバー部材とベースプレート間は固定、 (c) 第１ラバー部材とスチールプレート間は固
定、 (d) スチールプレートと基礎間は摺動可能、 (e) 第２ラバー部材とベースプレート間は摺動可
能、 (f) 第２ラバー部材と基礎間は固定、 の通り構成してなることを特徴とする回転機支持
装置。[Claims] 1. A device for supporting a rotating machine having a base plate on a foundation, which comprises a first rubber member and a second rubber member integrally fixed to the base plate and having different rigidities. , the second rubber member is disposed inside the first rubber member, and a steel plate is provided on the lower side of the first rubber member, and the first rubber member has a vertical rigidity higher than that of the second rubber member. is small, while
The second rubber member has lower shear rigidity than the first rubber member, and furthermore, between each of the above-mentioned components, (a) the first rubber member and the second rubber member are fixed; (b) the first rubber member is fixed; The part between the member and the base plate is fixed, (c) The part between the first rubber member and the steel plate is fixed, (d) The part between the steel plate and the foundation is slidable, (e) The part between the second rubber member and the base plate is slidable, ( f) A rotating machine support device characterized in that the space between the second rubber member and the foundation is fixed, and configured as follows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1750582A JPS58136247A (en) | 1982-02-08 | 1982-02-08 | Supporting device for rotary machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1750582A JPS58136247A (en) | 1982-02-08 | 1982-02-08 | Supporting device for rotary machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58136247A JPS58136247A (en) | 1983-08-13 |
| JPS6217939B2 true JPS6217939B2 (en) | 1987-04-20 |
Family
ID=11945831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1750582A Granted JPS58136247A (en) | 1982-02-08 | 1982-02-08 | Supporting device for rotary machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58136247A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01112766U (en) * | 1988-01-25 | 1989-07-28 |
-
1982
- 1982-02-08 JP JP1750582A patent/JPS58136247A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01112766U (en) * | 1988-01-25 | 1989-07-28 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58136247A (en) | 1983-08-13 |
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