JPS62242148A - Liquid sealed mount - Google Patents
Liquid sealed mountInfo
- Publication number
- JPS62242148A JPS62242148A JP8305086A JP8305086A JPS62242148A JP S62242148 A JPS62242148 A JP S62242148A JP 8305086 A JP8305086 A JP 8305086A JP 8305086 A JP8305086 A JP 8305086A JP S62242148 A JPS62242148 A JP S62242148A
- Authority
- JP
- Japan
- Prior art keywords
- orifice
- vibration
- displacement
- orifices
- case
- 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
- 239000007788 liquid Substances 0.000 title claims description 15
- 238000006073 displacement reaction Methods 0.000 claims abstract description 25
- 238000005192 partition Methods 0.000 claims abstract description 14
- 238000013016 damping Methods 0.000 abstract description 22
- 230000000694 effects Effects 0.000 abstract description 14
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 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
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
- F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
- F16F13/08—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
- F16F13/10—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper the wall being at least in part formed by a flexible membrane or the like
- F16F13/105—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper the wall being at least in part formed by a flexible membrane or the like characterised by features of partitions between two working chambers
- F16F13/107—Passage design between working chambers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combined Devices Of Dampers And Springs (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は主として自動車エンジンの防振に用いられる液
体入りマウントに関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates primarily to a liquid-filled mount used for vibration isolation of automobile engines.
〈従来の技術〉
エンジンマウントとして理想的な動特性はロスファクタ
ーが大きく、ばね定数の動倍率が小さいことであるが、
ゴム弾性体と金具からなるエンジンマウントではロスフ
ァクターと動倍率は相関関係があり、ロスファクターが
大きくなれば動倍率も大きくなる。一方１周波数とも密
接な関係があり、低周波数側から高周波数側にいくにつ
れてロスファクター、動倍率ともに大きくなる傾向にあ
る。<Conventional technology> The ideal dynamic characteristics for an engine mount are a large loss factor and a small dynamic magnification of the spring constant.
In engine mounts made of rubber elastic bodies and metal fittings, there is a correlation between the loss factor and the dynamic magnification, and as the loss factor increases, the dynamic magnification also increases. On the other hand, there is a close relationship with each frequency, and both the loss factor and the dynamic magnification tend to increase from the low frequency side to the high frequency side.
しかしながら、エンジンマウントは低周波数域で大変位
をもたらす振動入力に対しては大きな減衰力が要求され
る一方、高周波数域で小変化の振動入力に対しては低い
動ばね定数が要求される。However, engine mounts are required to have a large damping force against vibration inputs that cause large displacements in low frequency ranges, while low dynamic spring constants are required for vibration inputs that cause small changes in high frequency ranges.
低周波数域で大きな減衰力を得る手段としてゴム弾性体
と液体を組合わせた液体入りエンジンマウントが種々提
案されている６例えば、特開昭５７−８４２２０号、特
開昭Ｇｏ −７３１４７号等がある。Various liquid-filled engine mounts that combine rubber elastic bodies and liquid have been proposed as a means of obtaining large damping force in the low frequency range. be.
〈発明が解決しようとする問題点〉
しかし、これらは低周波数域で大きな減衰力をもたらす
一方、高周波数域で動ばね定数が高くなる欠点があった
。更に、オリフィスが１種類であるため、減衰力のピー
ク点を低周波数域にもってくると、必然的に中周波数域
での減衰性能は不十分となる欠点があった。<Problems to be Solved by the Invention> However, while these provide a large damping force in the low frequency range, they have the disadvantage that the dynamic spring constant becomes high in the high frequency range. Furthermore, since there is only one type of orifice, if the peak point of the damping force is brought to a low frequency range, there is a drawback that the damping performance in the middle frequency range will inevitably be insufficient.
く問題点を解決するための手段〉
そこで、本発明は上記のような事情に基づいてなされた
もので、その目的とする点は、低周波数域での大変位振
動に対しては大きな減衰力を有し、中周波数域での中変
位振動に対してもそれに見合った減衰力を有し、高周波
数域での小変位振動に対しては動ばね定数が高くならな
い液体入りマウントを提供することにある。Therefore, the present invention was made based on the above-mentioned circumstances, and its purpose is to provide a large damping force for large displacement vibrations in a low frequency range. To provide a liquid-filled mount which has a damping force commensurate with medium displacement vibration in a medium frequency range, and whose dynamic spring constant does not become high against small displacement vibration in a high frequency range. It is in.
その構造は、防振ゴムによって形成された液室（１）と
ダイヤフラム等による体積変化の可能な副次室（２）
とを仕切部材（３）により画成し、その仕切部材（３）
に設けられた貫通孔（４）に所定量移動可能に可動体（
５）を設けてなる液体入りマウントにおいて、前記仕切
部材（３）に制限流路の異なる複数のオリフィスを設け
たことを特徴とするものである。Its structure consists of a liquid chamber (1) formed by anti-vibration rubber and a secondary chamber (2) whose volume can be changed by a diaphragm, etc.
and defined by a partition member (3), and the partition member (3)
A movable body (
5) is characterized in that the partition member (3) is provided with a plurality of orifices having different restricted flow paths.
ここで制限流路が異なるとは、オリフィスの径と長さの
いずれか又は開方が異なることにより。Here, the restriction flow paths are different because either the diameter or length of the orifice or the opening direction is different.
流路内抵抗を異にすることを意味している。本発明の目
的に応え得る効果的な配設の仕方としては、複数設ける
オリフィスのうち、仕切部材（３）の内周側へ径が大き
く長さの短いオリフィスを設けると目的に合致する。This means that the resistance within the flow path is different. As an effective arrangement method that can meet the purpose of the present invention, it is possible to provide an orifice with a large diameter and a short length on the inner peripheral side of the partition member (3) among the plurality of orifices provided.
〈作用〉
このような構造であると、入力された振動の変位の大き
さにより前記可動体（５）が前記オリフィスを選択的に
閉鎖して、周波数域に見合った減衰力を生じる作用があ
る。また、振動の変位が小さいときは、径と長さの異な
るオリフィスが同時に開放状態になり、径が大きく長さ
の短いオリフィスが作用して減衰作用を発揮し、他のオ
リフィスによる減衰作用が現れないので、全体的に振動
の変位に応じて好ましい減衰作用を発揮する。<Function> With such a structure, the movable body (5) selectively closes the orifice depending on the magnitude of the displacement of the input vibration, and has the effect of generating a damping force commensurate with the frequency range. . Also, when the displacement of vibration is small, orifices with different diameters and lengths open simultaneously, and the orifice with the larger diameter and shorter length acts to exert a damping effect, and the damping effect of other orifices appears. Therefore, a preferable damping effect is exerted in response to the displacement of the vibration as a whole.
〈実施例〉 以下図面によって本発明の実施例を詳細に説明する。<Example> Embodiments of the present invention will be described in detail below with reference to the drawings.
第１図は本発明の実施例を示す縦断面図であり、第２図
は仕切部材の平面図である。第３図（ａ）〜（ｃ）は仕
切部材と可動体の接する様子を示す要部縦断面である。FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention, and FIG. 2 is a plan view of a partition member. FIGS. 3(a) to 3(c) are longitudinal cross-sections of essential parts showing how the partition member and the movable body are in contact with each other.
本発明に係る液体入りマウントの全体構造は。The overall structure of the liquid-filled mount according to the present invention is as follows.
第１図にみられるように、支持体側基板（６）と被支持
体側基板（７）の双方に取付ボルト（８）（０）が設け
られており、その間に中空室を備えた防振ゴムによって
形成された液室（１）とダイヤプラム（１０）による体
積変化の可能な副次室（２）とを仕切部材（３）により
画成し、その仕切部材（３）に設けられた貫通孔（４）
に所定量移動可能に可動体（５）が設けられている。As seen in Figure 1, mounting bolts (8) and (0) are provided on both the support side substrate (6) and the supported object side substrate (7), and vibration isolating rubber with a hollow chamber between them. The liquid chamber (1) formed by Hole (4)
A movable body (5) is provided so as to be movable by a predetermined amount.
ここで最も特徴とする点は、仕切部材（３）に制限流路
の異なる複数のオリフィスを設けた点にある。ここでは
内側オリフィス（１１）と、中間部オリフィス（１２）
、更に、外側オリフィス（１３）の３個のオリフィスが
設けられている。中間部オリフィス（１２）は外側オリ
フィス（１３）よりもその径が大きく。The most distinctive feature here is that the partition member (3) is provided with a plurality of orifices with different restricted flow paths. Here, the inner orifice (11) and the middle orifice (12)
In addition, three orifices are provided: an outer orifice (13). The middle orifice (12) has a larger diameter than the outer orifice (13).
長さが短い、これらのオリフィスを設けた位置は内側オ
リフィス（１１）と中間部オリフィス（１２）は可動体
（５）のフランジ（１４）内であって、小変位振動に対
しては、第３図（ａ）にみられるように可動体（５）が
小変位の状態にあって、各オリフィス（１１）（１２）
（１３）はともに開放状態にあり、その時は他よりも
径が大きく、長さの短い内側オリフィス（１１）のみが
作用して減衰作用を発揮し、他のオリフィスによる減衰
作用は現れない、ここで内側オリフィス（１１）は低周
波数域〜高周波数域に至る広い周波数域でロスファクタ
ーのピークが出ないように径と長さとオリフィス数を設
計している。The inner orifice (11) and the intermediate orifice (12) are located within the flange (14) of the movable body (5) and are short in length. As shown in Figure 3(a), the movable body (5) is in a small displacement state, and each orifice (11) (12)
(13) are both in the open state, and at that time, only the inner orifice (11), which has a larger diameter and shorter length than the others, acts and exerts a damping effect, and the damping effect from other orifices does not appear. The diameter, length, and number of orifices of the inner orifice (11) are designed so that the peak of the loss factor does not appear in a wide frequency range from low frequency range to high frequency range.
中変位振動に対しては第３図（ｂ）にみられるように内
側オリフィス（１１）が閉じられ、中間部オリフィス（
，１２”）が有効である。大変位振動に対しては、可動
体（５）によって内側オリフィス（１１）はもちろんの
こと中間部オリフィス（１２）まで閉じられ、外側オリ
フィス（１３）のみが有効となって大きな減衰力を有し
たものとなるのである。このように、入力された振動の
変位の大きさにより可動体（５）が複数のオリフィスを
選択的に閉鎖することができる。For medium displacement vibrations, the inner orifice (11) is closed and the intermediate orifice (11) is closed, as shown in Figure 3(b).
, 12") is effective. For large displacement vibrations, the movable body (5) closes not only the inner orifice (11) but also the intermediate orifice (12), and only the outer orifice (13) is effective. Therefore, it has a large damping force.In this way, the movable body (5) can selectively close the plurality of orifices depending on the magnitude of the displacement of the input vibration.
第４図（ａ） （ｂ）は前記実施例に示した液体入りマ
ラントの作用効果を示すグラフであって、周波数ニ対ス
る（ａ）はロスファクター、（ｂ）は動ばね定数の測定
結果である。FIGS. 4(a) and 4(b) are graphs showing the effects of the liquid-filled marant shown in the above embodiment, in which (a) is the loss factor compared to the frequency, and (b) is the measurement of the dynamic spring constant. This is the result.
低周波数で大変位の振動入力時（第３図（ｃ）相当）に
は、実線Ａで示されるようにロスファクターが低周波数
域でピークとなり、大きな減衰効果が得られている。そ
の時の動ばね定数は実線りで示されるようになるが、低
周波数振動時には問題が無い。When vibration is input with a large displacement at a low frequency (corresponding to FIG. 3(c)), the loss factor peaks in the low frequency range as shown by the solid line A, and a large damping effect is obtained. The dynamic spring constant at that time is shown as a solid line, but there is no problem during low frequency vibration.
中周波数で中変位の振動入力時（第３図（ｂ）相当）に
は、一点鎖線Ｂで示されるようにロスファクターが中周
波数域でピークとなり適度な減衰効果が得られる。その
時の動ばね定数は一点鎖線Ｅで示されるようになるが、
ロスファクターのピークが低いだけ動ばね定数の上昇も
少なく、悪影響をもたらすものではない。When a vibration is input at a medium frequency and a medium displacement (corresponding to FIG. 3(b)), the loss factor peaks in the medium frequency range, as shown by the dashed line B, and an appropriate damping effect is obtained. The dynamic spring constant at that time is shown by the dashed line E.
The lower the peak of the loss factor is, the less the increase in the dynamic spring constant is, and there is no negative effect.
高周波数で小変位の振動入力時（第３図（ａ）相当）に
は、ロスファクターは点線Ｃ１動ばね定数は点ａＦで示
されるように、ロスファクターのピークは発生せず、従
って、動ばね定数の急激な上昇もないため、良好な状態
が保たれる。When a vibration is input with a high frequency and a small displacement (corresponding to Fig. 3 (a)), the loss factor is the dotted line C1. Since there is no sudden increase in the spring constant, a good condition is maintained.
〈発明の効果〉
本発明の液体入りマウントは以上のような構造であるか
ら、低周波数域での大変位振動に対しては大きな減衰力
を有し、中周波数域での中変位振動に対してもそれに見
合った減衰力を有し、高周波数域での小変位振動に対し
ては動ばね定数が高くならない特徴がある。そこで、エ
ンジン始動時の振動防止はもちろんのこと、高低速いず
れの走行時においても、低周波数から高周波数に至るま
での車体への振動伝達を防止して、快適な乗心地を可能
とするものである。<Effects of the Invention> Since the liquid-filled mount of the present invention has the structure described above, it has a large damping force against large displacement vibrations in the low frequency range, and has a large damping force against medium displacement vibrations in the medium frequency range. However, it has a damping force commensurate with that, and has the characteristic that the dynamic spring constant does not become high for small displacement vibrations in the high frequency range. Therefore, in addition to preventing vibrations when the engine starts, it also prevents vibrations from being transmitted from low to high frequencies to the vehicle body when driving at both high and low speeds, making it possible to provide a comfortable ride. It is.
第１図は本発明の実施例を示す縦断面図であり、第２図
は仕切部材の平面図である。第３図（、）〜（Ｃ）は仕
切部材と可動体の接する様子を示す要部縦断面である。
第４図（ａ） （ｂ）は前記実施例に示した液体入りマ
ウントの作用効果を示すグラフであって１周波数に対す
る（ａ）はロスファクター、（ｂ）は動ばね定数の測定
結果である。
（１）液室 （２）副次室（３）仕切部材
（４）貫通孔（５）可動体 （１
０）ダイヤフラム（１１）内側オリフィス （１２）中
間部オリフィス（１３）外側オリフィス （１４）フラ
ンジ以上FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention, and FIG. 2 is a plan view of a partition member. FIGS. 3(a) to 3(c) are longitudinal cross-sections of essential parts showing the contact between the partition member and the movable body. FIGS. 4(a) and 4(b) are graphs showing the effects of the liquid-filled mount shown in the above example, in which (a) is the loss factor and (b) is the measurement result of the dynamic spring constant for one frequency. . (1) Liquid chamber (2) Sub-chamber (3) Partition member (4) Through hole (5) Movable body (1
0) Diaphragm (11) Inner orifice (12) Middle orifice (13) Outer orifice (14) Above flange
Claims (1)
ラム等による体積変化の可能な副次室（２）とを仕切部
材（３）により画成し、該仕切部材（３）に設けられた
貫通孔（４）に所定量移動可能に可動体（５）を設けて
なる液体入りマウントにおいて、前記仕切部材（３）に
制限流路の異なる複数のオリフィスを設けて、入力され
た振動の変位の大きさにより前記可動体（５）が前記オ
リフィスを選択的に閉鎖することを特徴とする液体入り
マウント。1 A liquid chamber (1) formed by anti-vibration rubber and a sub-chamber (2) whose volume can be changed by a diaphragm etc. are defined by a partition member (3), and a In a liquid-filled mount in which a movable body (5) is provided in a through hole (4) so as to be movable by a predetermined amount, a plurality of orifices with different restricted flow paths are provided in the partition member (3) to adjust the displacement of input vibrations. A liquid-filled mount characterized in that the movable body (5) selectively closes the orifice depending on the size of the orifice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8305086A JPS62242148A (en) | 1986-04-09 | 1986-04-09 | Liquid sealed mount |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8305086A JPS62242148A (en) | 1986-04-09 | 1986-04-09 | Liquid sealed mount |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62242148A true JPS62242148A (en) | 1987-10-22 |
Family
ID=13791362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8305086A Pending JPS62242148A (en) | 1986-04-09 | 1986-04-09 | Liquid sealed mount |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62242148A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0346060A2 (en) * | 1988-06-06 | 1989-12-13 | Honda Giken Kogyo Kabushiki Kaisha | Fluid-filled vibration damper |
| EP0516304A2 (en) * | 1991-05-29 | 1992-12-02 | Lord Corporation | Adaptive fluid mount |
| US20210155090A1 (en) * | 2019-11-27 | 2021-05-27 | Vibracoustic Nantes Sas | Separating element for an anti-vibration hydraulic module and anti-vibration hydraulic module equipped with such a separating element |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6145130A (en) * | 1984-08-07 | 1986-03-05 | Toyo Tire & Rubber Co Ltd | Liquid damping type vibration insulating supporting device |
-
1986
- 1986-04-09 JP JP8305086A patent/JPS62242148A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6145130A (en) * | 1984-08-07 | 1986-03-05 | Toyo Tire & Rubber Co Ltd | Liquid damping type vibration insulating supporting device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0346060A2 (en) * | 1988-06-06 | 1989-12-13 | Honda Giken Kogyo Kabushiki Kaisha | Fluid-filled vibration damper |
| EP0516304A2 (en) * | 1991-05-29 | 1992-12-02 | Lord Corporation | Adaptive fluid mount |
| US20210155090A1 (en) * | 2019-11-27 | 2021-05-27 | Vibracoustic Nantes Sas | Separating element for an anti-vibration hydraulic module and anti-vibration hydraulic module equipped with such a separating element |
| CN112855838A (en) * | 2019-11-27 | 2021-05-28 | 威巴克南特公司 | Separating element for hydraulic vibration-proof module and hydraulic vibration-proof module equipped with same |
| US11801745B2 (en) * | 2019-11-27 | 2023-10-31 | Vibracoustic Nantes Sas | Separating element for an anti-vibration hydraulic module and anti-vibration hydraulic module equipped with such a separating element |
| CN112855838B (en) * | 2019-11-27 | 2023-12-01 | 威巴克南特公司 | Separating element of hydraulic vibration-proof module and hydraulic vibration-proof module equipped with separating element |
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