JPH08240241A - Liquid enclosing mount - Google Patents
Liquid enclosing mountInfo
- Publication number
- JPH08240241A JPH08240241A JP6889595A JP6889595A JPH08240241A JP H08240241 A JPH08240241 A JP H08240241A JP 6889595 A JP6889595 A JP 6889595A JP 6889595 A JP6889595 A JP 6889595A JP H08240241 A JPH08240241 A JP H08240241A
- Authority
- JP
- Japan
- Prior art keywords
- space
- liquid
- liquid chamber
- idle
- orifice
- 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.)
- Granted
Links
Landscapes
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Combined Devices Of Dampers And Springs (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、自動車エンジン等の振
動体を防振支持するために用いられる液体封入式マウン
トに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid-filled mount used for supporting a vibration body such as an automobile engine in a vibration-proof manner.
【０００２】[0002]
【従来の技術】図５に示すように、液体封入式マウント
には、従来から、低周波大振幅（周波数１０Ｈｚ以下、
振幅約±１ｍｍ）の振動を吸収抑制するショックオリフ
ィスａと、高周波小振幅（振幅約±０．０５ｍｍ）の振
動を吸収抑制するサブダイアフラムｂとが設けられてい
る（特公昭６２−５３７３５号公報参照）。2. Description of the Related Art As shown in FIG. 5, a liquid-filled mount has conventionally been provided with a low frequency large amplitude (frequency of 10 Hz or less,
A shock orifice a that suppresses vibration with an amplitude of about ± 1 mm) and a sub-diaphragm b that suppresses vibration with a high-frequency small amplitude (amplitude of about ± 0.05 mm) are provided (Japanese Patent Publication No. 62-53735). reference).
【０００３】しかしながらこの液体封入式マウントに対
して、アイドル回転域で発生するアイドル振動（周波数
２０〜３０Ｈｚ、振幅約±０．２ｍｍ）が入力すると、
ショックオリフィスａを作動液が流れず、またサブダイ
アフラムｂが共振移動しないために、内圧が上昇して動
バネ定数が高くなってしまう。したがって上記従来技術
には、アイドル回転域においてエンジンの振動（アイド
ル振動）が大きく伝達される問題がある。However, when the idle vibration (frequency 20 to 30 Hz, amplitude approximately ± 0.2 mm) generated in the idle rotation range is input to this liquid-filled mount,
Since the hydraulic fluid does not flow through the shock orifice a and the sub-diaphragm b does not move in resonance, the internal pressure increases and the dynamic spring constant increases. Therefore, the above-mentioned conventional technique has a problem that engine vibration (idle vibration) is largely transmitted in the idle rotation range.
【０００４】[0004]
【発明が解決しようとする課題】本発明は以上の点に鑑
み、アイドル振動に対する動バネ定数が低く、もってア
イドル振動を有効に吸収抑制することができる液体封入
式マウントを提供することを目的とする。SUMMARY OF THE INVENTION In view of the above points, an object of the present invention is to provide a liquid-filled mount that has a low dynamic spring constant against idle vibration and can effectively absorb and suppress idle vibration. To do.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するた
め、本発明の液体封入式マウントは、一方の取付部およ
び他方の取付部をゴム状弾性材製の弾性体を介して接続
するとともに前記他方の取付部にダイアフラムを接続し
て気密空間を設け、前記気密空間に第一および第二仕切
部を設けて前記気密空間を一方の取付部側の第一空間
と、両仕切部間の第二空間と、ダイアフラム側の第三空
間とに仕切り、前記第二空間にゴム状弾性材製の第三仕
切部を設けて前記第二空間を内周側空間と外周側空間と
に仕切り、前記第一空間を第一液室とし、前記外周側空
間を第二液室とし、前記第二仕切部に前記内周側空間と
前記第三空間とを連通する連通部を設けて前記内周側空
間および前記第三空間を第三液室とし、前記第一液室と
前記第二液室とをアイドル振動が入力したときに作動液
が流れるアイドルオリフィスを介して連通し、前記第二
液室と前記第三液室とをショックオリフィスを介して連
通し、前記第一液室と前記第三液室との間にサブダイア
フラムを設けることにした。In order to achieve the above object, in the liquid-filled mount according to the present invention, one mounting portion and the other mounting portion are connected to each other via an elastic body made of a rubber-like elastic material. A diaphragm is connected to the other mounting portion to provide an airtight space, and the airtight space is provided with first and second partition portions to define the airtight space as a first space on one mounting portion side and a first space between both partition portions. Partition into two spaces and a third space on the diaphragm side, a third partition part made of a rubber-like elastic material is provided in the second space to partition the second space into an inner peripheral side space and an outer peripheral side space, and The first space is a first liquid chamber, the outer space is a second liquid chamber, the second partition is provided with a communication portion that communicates the inner space and the third space, the inner side The space and the third space are used as a third liquid chamber, and the first liquid chamber and the second liquid chamber are an eye. Fluid is communicated through an idle orifice when vibration is input, the second fluid chamber and the third fluid chamber are communicated through a shock orifice, and the first fluid chamber and the third fluid chamber are communicated with each other. I decided to install a sub diaphragm between the room and the room.
【０００６】[0006]
【作用】上記構成を備えた本発明の液体封入式マウント
に対して、アイドル回転域で発生するアイドル振動が入
力すると、第一液室と第二液室とを連通したアイドルオ
リフィスを作動液が流れるために、アイドル振動に対す
る動バネ定数を従来より低くすることが可能となる。ま
た低周波大振幅の振動、高周波小振幅の振動に対しては
それぞれ、ショックオリフィス、サブダイアフラムが対
応作動する。When the idle vibration generated in the idle rotation range is input to the liquid-filled mount of the present invention having the above-mentioned structure, the working fluid is caused to flow through the idle orifice which connects the first liquid chamber and the second liquid chamber. Since it flows, the dynamic spring constant for idle vibration can be made lower than before. Further, the shock orifice and the sub-diaphragm operate correspondingly to vibrations of low frequency and large amplitude and high frequency and small amplitude respectively.
【０００７】[0007]
【実施例】つぎに本発明の実施例を図面にしたがって説
明する。Embodiments of the present invention will now be described with reference to the drawings.
【０００８】図１に示すように、センターボス２を備え
た一方の取付部１と、ケース４を備えた他方の取付部３
とがゴム状弾性材製の弾性体（ゴム台座とも称する）５
を介して接続されており、他方の取付部３にゴム状弾性
材製のダイアフラム６が外周縁部６ａをもって接続さ
れ、これらに囲まれて当該マウントの内部に気密空間７
が設けられ、この気密空間７が、第一および第二オリフ
ィスプレート９，１０を備えて他方の取付部３に接続さ
れた第一仕切部８と、第三オリフィスプレート１２を備
えて第一仕切部８のダイアフラム６側で他方の取付部３
に接続された第二仕切部１１とによって、一方の取付部
１側の第一空間１３と、両仕切部８，１１間の第二空間
１４と、ダイアフラム６側の第三空間１５とに仕切ら
れ、第一仕切部８と第二仕切部１１とを接続するように
第二空間１４に環状を呈するゴム状弾性材製の第三仕切
部（ゴム仕切壁とも称する）１６が設けられ、この第三
仕切部１６によって第二空間１４が内周側空間１７と外
周側空間１８とに仕切られ、第二仕切部１１に孔状の連
通部１９が設けられ、この連通部１９によって内周側空
間１７と第三空間１５とが連通せしめられ、以上によっ
て第一空間１３が第一液室２０、外周側空間１８が第二
液室２１、内周側空間１７および第三空間１５が第三液
室２２とされて、各室に作動液２３が封入されている。As shown in FIG. 1, one mounting portion 1 having a center boss 2 and the other mounting portion 3 having a case 4 are provided.
Is an elastic body made of rubber-like elastic material (also called a rubber pedestal) 5
A diaphragm 6 made of a rubber-like elastic material is connected to the other mounting portion 3 with an outer peripheral edge portion 6a, and is surrounded by the airtight space 7 inside the mount.
The airtight space 7 is provided with the first and second orifice plates 9 and 10, which are connected to the other mounting portion 3, and the third orifice plate 12, which is the first partition. The other mounting portion 3 on the diaphragm 6 side of the portion 8
A second space 11 on the side of the one mounting part 1, a second space 14 between the two partition parts 8 and 11, and a third space 15 on the diaphragm 6 side. A third partition part (also referred to as a rubber partition wall) 16 made of a rubber-like elastic material having an annular shape is provided in the second space 14 so as to connect the first partition part 8 and the second partition part 11. The second space 14 is partitioned into an inner peripheral side space 17 and an outer peripheral side space 18 by the third partition part 16, and a hole-shaped communication part 19 is provided in the second partition part 11, and the inner peripheral side is formed by this communication part 19. The space 17 and the third space 15 are communicated with each other, and thus the first space 13 is the first liquid chamber 20, the outer space 18 is the second liquid chamber 21, the inner space 17 and the third space 15 are the third space. A liquid chamber 22 is provided, and a hydraulic fluid 23 is enclosed in each chamber.
【０００９】第一仕切部８に、アイドル振動が入力した
ときに作動液２３が流れるアイドルオリフィス２４が設
けられ、このアイドルオリフィス２４によって第一液室
２０と第二液室２１とが連通せしめられている。第二仕
切部１１に、低周波大振幅の振動が入力したときに作動
液２３が流れるショックオリフィス２５が設けられ、こ
のショックオリフィス２５によって第二液室２１と第三
液室２２とが連通せしめられている。第一仕切部８の内
周部に、弁室２６が設けられるとともに、この弁室２６
と第一液室２０または第三液室２２とを連通する多数の
連通孔２７，２８がそれぞれ設けられ、弁室２６に、高
周波小振幅の振動が入力したときに図上上下方向に共振
移動（微振動）する円盤状を呈するゴム状弾性材製のサ
ブダイアフラム２９が挿入されている。また他方の取付
部３に、ダイアフラム６を覆ってこれを保護するように
蓋３０が取り付けられている。The first partition 8 is provided with an idle orifice 24 through which the hydraulic fluid 23 flows when an idle vibration is input. The idle orifice 24 allows the first fluid chamber 20 and the second fluid chamber 21 to communicate with each other. ing. The second partition portion 11 is provided with a shock orifice 25 through which the hydraulic fluid 23 flows when a low-frequency, large-amplitude vibration is input. The shock orifice 25 allows the second liquid chamber 21 and the third liquid chamber 22 to communicate with each other. Has been. A valve chamber 26 is provided on the inner peripheral portion of the first partition 8 and the valve chamber 26
And a large number of communication holes 27 and 28 for communicating the first liquid chamber 20 and the third liquid chamber 22 with each other, and when a high-frequency small-amplitude vibration is input to the valve chamber 26, it resonates vertically in the drawing. A sub-diaphragm 29 made of a rubber-like elastic material and having a disk shape (small vibration) is inserted. A lid 30 is attached to the other attachment portion 3 so as to cover the diaphragm 6 and protect it.
【００１０】上記構成を備えた液体封入式マウントは一
方および他方の取付部１，３の一方をもって自動車の車
体側に取り付けられるとともに他方をもってエンジン側
に取り付けられ、以下のように、アイドル振動、低周波
大振幅の振動および高周波小振幅の振動を吸収抑制す
る。The liquid-filled mount having the above construction is attached to the vehicle body side of one of the mounting portions 1 and 3 on the one side and the other side to the engine side of the other mounting portion. Absorbs and suppresses high-frequency and high-frequency small-amplitude vibrations.
【００１１】すなわち先ず、当該マウントに対してアイ
ドル振動が入力すると、第一液室２０と第二液室２１と
を連通したアイドルオリフィス２４を作動液２３が流れ
る。また作動液２３はショックオリフィス２５を流れな
い。したがってゴム状弾性材製の第三仕切部１６によっ
て仕切られた第二液室２１の拡張弾性と、アイドルオリ
フィス２４による共振とによって動バネ定数を低く設定
することができ、これによりアイドル振動を有効に吸収
することができる。また当該マウントに対して低周波大
振幅の振動が入力すると、第二液室２１と第三液室２２
とを連通したショックオリフィス２５を作動液２３が流
れるために、液柱共振によって高ダンピングを得ること
ができ、これにより低周波大振幅の振動を有効に吸収抑
制することができる。また当該マウントに対して高周波
小振幅の振動が入力すると、サブダイアフラム２９が共
振移動するために、これにより高周波小振幅の振動を有
効に吸収抑制することができる。That is, first, when an idle vibration is input to the mount, the hydraulic fluid 23 flows through an idle orifice 24 which connects the first liquid chamber 20 and the second liquid chamber 21. Further, the hydraulic fluid 23 does not flow through the shock orifice 25. Therefore, the dynamic spring constant can be set low by the expansion elasticity of the second liquid chamber 21 partitioned by the third partition 16 made of a rubber-like elastic material and the resonance by the idle orifice 24, whereby idle vibration is effective. Can be absorbed into. When a low-frequency, large-amplitude vibration is input to the mount, the second liquid chamber 21 and the third liquid chamber 22
Since the hydraulic fluid 23 flows through the shock orifice 25 communicating with and, high damping can be obtained by the liquid column resonance, and thus vibration of low frequency and large amplitude can be effectively absorbed and suppressed. Further, when high-frequency small-amplitude vibration is input to the mount, the sub-diaphragm 29 resonates and moves, whereby the high-frequency small-amplitude vibration can be effectively absorbed and suppressed.
【００１２】尚、当該マウントの低周波特性（図２）、
アイドル回転域動バネ定数（図３）、高周波動バネ定数
（図４）はそれぞれ各グラフに示すとおりであって、上
記したようにアイドル回転域動バネ定数の低下に顕著な
特徴を有している。尚、各グラフにおいては、実線が当
該マウント、点線が上記従来技術に係る液体封入式マウ
ント、破線がゴムマウントを示している。The low frequency characteristics of the mount (FIG. 2),
The idle spring dynamic spring constant (Fig. 3) and the high frequency dynamic spring constant (Fig. 4) are as shown in the respective graphs, and as described above, the idle spring dynamic spring constant has a remarkable characteristic. There is. In each graph, the solid line shows the mount, the dotted line shows the liquid-filled mount according to the above-mentioned conventional technique, and the broken line shows the rubber mount.
【００１３】[0013]
【発明の効果】本発明は、以下の効果を奏する。The present invention has the following effects.
【００１４】すなわち、上記構成を備えた本発明の液体
封入式マウントにおいては、当該マウントにアイドル振
動が入力すると、第一液室と第二液室とを連通したアイ
ドルオリフィスを作動液が流れるために、アイドル振動
に対する動バネ定数を従来より低くすることが可能とな
る。したがってアイドル振動に対する動バネ定数が低
く、もってアイドル振動を有効に吸収抑制することがで
きるマウント製品を提供することができる。また低周波
大振幅の振動、高周波小振幅の振動に対してはそれぞ
れ、ショックオリフィス、サブダイアフラムが対応作動
して、これらを有効に吸収抑制することができる。That is, in the liquid-filled mount of the present invention having the above structure, when idle vibration is input to the mount, the working fluid flows through the idle orifice that connects the first liquid chamber and the second liquid chamber. In addition, the dynamic spring constant for idle vibration can be made lower than before. Therefore, it is possible to provide a mount product that has a low dynamic spring constant for idle vibration and can effectively suppress and suppress idle vibration. Further, the shock orifice and the sub-diaphragm operate correspondingly to the vibration of the low frequency large amplitude and the vibration of the high frequency small amplitude, respectively, and these can be effectively absorbed and suppressed.
【図１】本発明の実施例に係る液体封入式マウントの断
面図FIG. 1 is a sectional view of a liquid-filled mount according to an embodiment of the present invention.
【図２】同液体封入式マウントの低周波特性を示すグラ
フ図FIG. 2 is a graph showing low frequency characteristics of the liquid-filled mount.
【図３】同液体封入式マウントのアイドル回転域動バネ
定数を示すグラフ図FIG. 3 is a graph showing a dynamic spring constant of an idle rotation range of the liquid-filled mount.
【図４】同液体封入式マウントの高周波動バネ定数を示
すグラフ図FIG. 4 is a graph showing a high frequency dynamic spring constant of the liquid-filled mount.
【図５】従来例に係る液体封入式マウントの断面図FIG. 5 is a sectional view of a liquid-filled mount according to a conventional example.
１ 一方の取付部 ２ センターボス ３ 他方の取付部 ４ ケース ５ 弾性体 ６ ダイアフラム ６ａ 外周縁部 ７ 気密空間 ８ 第一仕切部 ９ 第一オリフィスプレート １０ 第二オリフィスプレート １１ 第二仕切部 １２ 第三オリフィスプレート １３ 第一空間 １４ 第二空間 １５ 第三空間 １６ 第三仕切部 １７ 内周側空間 １８ 外周側空間 １９ 連通部 ２０ 第一液室 ２１ 第二液室 ２２ 第三液室 ２３ 作動液 ２４ アイドルオリフィス ２５ ショックオリフィス ２６ 弁室 ２７，２８ 連通孔 ２９ サブダイアフラム ３０ 蓋 1 One mounting portion 2 Center boss 3 Other mounting portion 4 Case 5 Elastic body 6 Diaphragm 6a Outer peripheral edge portion 7 Airtight space 8 First partition portion 9 First orifice plate 10 Second orifice plate 11 Second partition portion 12 Third Orifice plate 13 First space 14 Second space 15 Third space 16 Third partition 17 Inner peripheral side space 18 Outer peripheral side space 19 Communication part 20 First liquid chamber 21 Second liquid chamber 22 Third liquid chamber 23 Working liquid 24 Idle orifice 25 Shock orifice 26 Valve chamber 27, 28 Communication hole 29 Sub diaphragm 30 Lid
Claims (1)
（３）をゴム状弾性材製の弾性体（５）を介して接続す
るとともに前記他方の取付部（３）にダイアフラム
（６）を接続して気密空間（７）を設け、前記気密空間
（７）に第一および第二仕切部（８）（１１）を設けて
前記気密空間（７）を一方の取付部（１）側の第一空間
（１３）と、両仕切部（８）（１１）間の第二空間（１
４）と、ダイアフラム（６）側の第三空間（１５）とに
仕切り、前記第二空間（１４）にゴム状弾性材製の第三
仕切部（１６）を設けて前記第二空間（１４）を内周側
空間（１７）と外周側空間（１８）とに仕切り、前記第
一空間（１３）を第一液室（２０）とし、前記外周側空
間（１８）を第二液室（２１）とし、前記第二仕切部
（１１）に前記内周側空間（１７）と前記第三空間（１
５）とを連通する連通部（１９）を設けて前記内周側空
間（１７）および前記第三空間（１５）を第三液室（２
２）とし、前記第一液室（２０）と前記第二液室（２
１）とをアイドル振動が入力したときに作動液（２３）
が流れるアイドルオリフィス（２４）を介して連通し、
前記第二液室（２１）と前記第三液室（２２）とをショ
ックオリフィス（２５）を介して連通し、前記第一液室
（２０）と前記第三液室（２２）との間にサブダイアフ
ラム（２９）を設けたことを特徴とする液体封入式マウ
ント。1. One mounting portion (1) and the other mounting portion (3) are connected via an elastic body (5) made of a rubber-like elastic material, and a diaphragm (6) is attached to the other mounting portion (3). ) Are connected to each other to provide an airtight space (7), and the airtight space (7) is provided with first and second partition parts (8) and (11) to attach the airtight space (7) to one mounting part (1). Side first space (13) and the second space (1) between both partition parts (8) and (11)
4) and the third space (15) on the diaphragm (6) side, and a third partition (16) made of a rubber-like elastic material is provided in the second space (14) to provide the second space (14). ) Is divided into an inner peripheral side space (17) and an outer peripheral side space (18), the first space (13) is defined as a first liquid chamber (20), and the outer peripheral side space (18) is defined as a second liquid chamber (18). 21), and the inner space (17) and the third space (1) in the second partition (11).
5), a communication part (19) is provided to connect the inner space (17) and the third space (15) to the third liquid chamber (2).
2), the first liquid chamber (20) and the second liquid chamber (2
When the idle vibration is input to 1) and hydraulic fluid (23)
Through an idle orifice (24) where
The second liquid chamber (21) and the third liquid chamber (22) are communicated with each other via a shock orifice (25), and between the first liquid chamber (20) and the third liquid chamber (22). A liquid-filled mount characterized in that a sub-diaphragm (29) is provided in the.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6889595A JP3716869B2 (en) | 1995-03-03 | 1995-03-03 | Liquid filled mount |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6889595A JP3716869B2 (en) | 1995-03-03 | 1995-03-03 | Liquid filled mount |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08240241A true JPH08240241A (en) | 1996-09-17 |
| JP3716869B2 JP3716869B2 (en) | 2005-11-16 |
Family
ID=13386855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6889595A Expired - Fee Related JP3716869B2 (en) | 1995-03-03 | 1995-03-03 | Liquid filled mount |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3716869B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671686A (en) * | 2013-12-19 | 2014-03-26 | 华南理工大学 | Passive fluidic resistor suspension with equivalent mechanical structure |
-
1995
- 1995-03-03 JP JP6889595A patent/JP3716869B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671686A (en) * | 2013-12-19 | 2014-03-26 | 华南理工大学 | Passive fluidic resistor suspension with equivalent mechanical structure |
| CN103671686B (en) * | 2013-12-19 | 2015-07-01 | 华南理工大学 | Passive fluidic resistor suspension with equivalent mechanical structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3716869B2 (en) | 2005-11-16 |
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