JPH04312230A - Liquid seal vibration isolating device - Google Patents
Liquid seal vibration isolating deviceInfo
- Publication number
- JPH04312230A JPH04312230A JP10674491A JP10674491A JPH04312230A JP H04312230 A JPH04312230 A JP H04312230A JP 10674491 A JP10674491 A JP 10674491A JP 10674491 A JP10674491 A JP 10674491A JP H04312230 A JPH04312230 A JP H04312230A
- Authority
- JP
- Japan
- Prior art keywords
- vibration
- movable wall
- chamber
- flow path
- liquid
- 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 abstract description 31
- 230000000295 complement effect Effects 0.000 claims 1
- 239000000696 magnetic material Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract 1
- 238000000638 solvent extraction Methods 0.000 abstract 1
- 238000013016 damping Methods 0.000 description 6
- 238000005192 partition Methods 0.000 description 6
- 239000012528 membrane Substances 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は液封入防振装置に関し、
特に簡易な構造で装置特性を可変とした液封入防振装置
に関する。[Industrial Application Field] The present invention relates to a liquid-filled vibration isolator,
In particular, the present invention relates to a liquid-filled vibration isolator with a simple structure and variable device characteristics.
【０００２】0002
【従来の技術】液封入防振装置のうちには、振動入力に
伴い相補的に変形する一対の室壁により液室を形成して
、両液室を結ぶ流路に弁部材を設け、これを開閉制御し
て流路断面積を変更する等により所望の防振特性を得て
いる。[Prior Art] In a liquid-filled vibration isolator, a liquid chamber is formed by a pair of chamber walls that deform complementarily with vibration input, and a valve member is provided in a flow path connecting both liquid chambers. Desired vibration damping characteristics are obtained by controlling the opening and closing of the valve and changing the cross-sectional area of the flow path.
【０００３】0003
【発明が解決しようとする課題】しかしながら、上記従
来の構造では弁部材の駆動機構が比較的複雑になるとと
もに、流路壁貫通部の液シ−ルも考慮する必要がある。However, in the conventional structure described above, the driving mechanism of the valve member is relatively complicated, and it is also necessary to consider the liquid seal of the passage wall penetrating portion.
【０００４】本発明はかかる課題を解決するもので、液
シ−ルを考慮することなく簡易な構造で防振特性を変更
することが可能な液封入防振装置を提供することを目的
とする。[0004] The present invention solves this problem, and aims to provide a liquid-filled vibration isolator that can change vibration damping characteristics with a simple structure without considering liquid seals. .
【０００５】[0005]
【課題を解決するための手段】本発明の構成を説明する
と、液封入防振装置は、振動体に連結され振動入力に応
じて相補的に変形する一対の室壁１，２により液室Ａ，
Ｂを形成してこれら液室Ａ，Ｂを流路Ｌ１により結び、
該流路Ｌ１内に、これを横断閉鎖するとともに流路方向
へ摺動移動自在とした磁石体よりなる可動壁３を設け、
かつ該可動壁３に磁界を作用せしめて振動入力に応じて
これを移動駆動する駆動手段４を設けたものである。[Means for Solving the Problems] To explain the structure of the present invention, a liquid-filled vibration isolator has a liquid chamber A formed by a pair of chamber walls 1 and 2 connected to a vibrating body and deformed complementarily in response to vibration input. ，
B is formed and these liquid chambers A and B are connected by a flow path L1,
A movable wall 3 made of a magnetic body is provided in the flow path L1 to cross-close it and to be able to slide freely in the direction of the flow path.
Further, a driving means 4 is provided for applying a magnetic field to the movable wall 3 and driving the movable wall 3 to move in response to vibration input.
【０００６】[0006]
【作用】上記構成の防振装置において、例えば振動入力
の位相に対して一定の関係を有するように可動壁３を往
復移動せしめると、装置の動バネ定数および減衰係数が
好適に変更されて入力振動が低減される。[Operation] In the vibration isolating device configured as described above, for example, when the movable wall 3 is moved back and forth so as to have a certain relationship with the phase of the vibration input, the dynamic spring constant and damping coefficient of the device are suitably changed. Vibration is reduced.
【０００７】流路Ｌ１内の可動壁３を磁界により移動せ
しめているから構造は簡単であり、かつ液シ−ルを考慮
する必要もない。Since the movable wall 3 in the flow path L1 is moved by a magnetic field, the structure is simple and there is no need to consider liquid seals.
【０００８】[0008]
【実施例】図１において、防振装置は、振動体を支持す
る防振ゴム体１を有し、これは下方へ開放する厚肉容器
体である。防振ゴム体１の開口周面には筒状側板５の上
半部が接合してあり、筒内にはこれを横切って中心に開
口６１を形成した仕切板６が嵌着され、その上方の密閉
空間を、上記防振ゴム体１を室壁とする主液室Ａとして
ある。側板５の下方には深い容器状の底板７が配設され
て、その屈曲する開口部が側板５の下半部にかしめ固定
されている。底板７内には筒部材８が設けてあり、該筒
部材８は基部８２を大径の円形となすとともに、本体部
８１は基部８２の中心より筒状に立ち上がって先端開口
が仕切板６の中心下面凹所に嵌入し、上記開口６１に連
通している。DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, a vibration isolating device has a vibration isolating rubber body 1 that supports a vibrating body, and this is a thick container body that opens downward. The upper half of the cylindrical side plate 5 is joined to the opening circumferential surface of the anti-vibration rubber body 1, and a partition plate 6 with an opening 61 formed in the center is fitted across the inside of the cylinder. The sealed space is defined as a main liquid chamber A having the vibration isolating rubber body 1 as a chamber wall. A deep container-shaped bottom plate 7 is disposed below the side plate 5, and its bent opening is caulked and fixed to the lower half of the side plate 5. A cylindrical member 8 is provided inside the bottom plate 7 , and the cylindrical member 8 has a base 82 having a large diameter circular shape, and a main body 81 that rises in a cylindrical shape from the center of the base 82 and has a distal end opening that meets the partition plate 6 . It fits into the central lower surface recess and communicates with the opening 61.
【０００９】上記筒部材８の本体部８１外周には仕切板
６の下面に接して電磁コイル４が設けてあり、該電磁コ
イル４の外周と底板７開口内周に沿う内側の筒状スペ−
サ２１との間には薄肉のゴム膜２が張設してあって、ゴ
ム膜２下方にこれを室壁とする副液室Ｂが形成されてい
る。底板７の底面全面に接して位置する筒部材８の基部
８２には、図２に示すように内部のほぼ全周に絞り流路
Ｌ２が設けてあり、絞り流路Ｌ２の一端は本体部８１の
筒内に開口するとともに、他端は上記副液室Ｂに開口し
ている。An electromagnetic coil 4 is provided on the outer periphery of the main body 81 of the cylindrical member 8 in contact with the lower surface of the partition plate 6.
A thin rubber membrane 2 is stretched between the chamber 21 and the rubber membrane 2, and an auxiliary liquid chamber B is formed below the rubber membrane 2 with this as a chamber wall. As shown in FIG. 2, the base 82 of the cylindrical member 8, which is located in contact with the entire bottom surface of the bottom plate 7, is provided with a throttle channel L2 around the entire inside thereof, and one end of the throttle channel L2 is connected to the main body part 81. It opens into the cylinder, and the other end opens into the sub-liquid chamber B.
【００１０】上記電磁コイル４内側の、本体部８１上半
は内径が段付きにやや大きくしてあって、ここに可動壁
３が設けてある。可動壁３は平板状の内周部３１と、外
周縁より軸方向へ延伸して筒状となったガイド部３２と
より構成され、板中心の上下面には磁極が形成されると
ともにガイド部３２外周は筒部材本体部８１の内周に近
接して、本体部８１内周の段部と仕切板６間で上下に摺
動自在である。かかる可動壁３は、底板７との間に設け
たコイルバネ３３により支持されている。The inner diameter of the upper half of the main body 81 inside the electromagnetic coil 4 is stepped and slightly larger, and the movable wall 3 is provided here. The movable wall 3 is composed of a flat inner peripheral part 31 and a cylindrical guide part 32 extending in the axial direction from the outer peripheral edge, and magnetic poles are formed on the upper and lower surfaces of the center of the plate, and the guide part The outer periphery of 32 is close to the inner periphery of the cylindrical member main body part 81 and is vertically slidable between the stepped part of the inner periphery of the main body part 81 and the partition plate 6 . The movable wall 3 is supported by a coil spring 33 provided between the movable wall 3 and the bottom plate 7.
【００１１】上記電磁コイル４は装置外の制御回路９に
接続されて振動入力に応じて後述の如く通電される。振
動体は上記防振ゴム体１の頂面に接合した上板１１に載
置固定され、底板７は車体フレ−ム上に設置固定される
。The electromagnetic coil 4 is connected to a control circuit 9 outside the device, and is energized as described below in response to vibration input. The vibrating body is placed and fixed on an upper plate 11 joined to the top surface of the vibration-proof rubber body 1, and the bottom plate 7 is placed and fixed on the vehicle body frame.
【００１２】上記構造の液封入防振装置において、小振
動入力時には上記制御回路９は、防振ゴム体１に入力す
る振動と同位相で可動壁３を往復上下動せしめるべく上
記電磁コイル４に正逆通電する。これにより主液室Ａの
変形に伴う液室内圧の変化は吸収され、装置の動バネ定
数が低下して入力振動は効果的に吸収低減される。In the liquid-filled vibration isolator having the above structure, when a small vibration is input, the control circuit 9 causes the electromagnetic coil 4 to move the movable wall 3 up and down in a reciprocating manner in the same phase as the vibration input to the vibration isolating rubber body 1. Electrify in forward and reverse directions. As a result, changes in the liquid chamber pressure due to deformation of the main liquid chamber A are absorbed, the dynamic spring constant of the device is reduced, and input vibrations are effectively absorbed and reduced.
【００１３】大振動の入力時には上記制御回路９は、防
振ゴム体１に入力する振動と逆位相で可動壁３を往復上
下動せしめるべく上記電磁コイル４に正逆通電する。こ
れにより、主液室Ａの変形に伴い大きな内圧が発生し、
装置の動バネ定数が増大して入力振動は抑制低減される
。When large vibrations are input, the control circuit 9 energizes the electromagnetic coil 4 in forward and reverse directions to move the movable wall 3 up and down in a reciprocating manner in a phase opposite to the vibration input to the vibration isolating rubber body 1 . As a result, a large internal pressure is generated due to the deformation of the main liquid chamber A.
The dynamic spring constant of the device increases and input vibrations are suppressed and reduced.
【００１４】また、大きな減衰力の発生が望ましい場合
には上記電磁コイル４への通電を停止する。振動入力に
応じて主液室Ａより本体部８１の筒内に密封液が出入し
、これに伴って可動壁３が上下動して上記本体部筒内よ
り絞り流路Ｌ２を経て副液室Ｂへ密封液が出入する。
この時の流通抵抗により装置の減衰係数が増大し大きな
振動減衰力を生じる。Further, when it is desired to generate a large damping force, the power supply to the electromagnetic coil 4 is stopped. In response to vibration input, sealing liquid enters and exits the cylinder of the main body part 81 from the main liquid chamber A, and the movable wall 3 moves up and down accordingly, and flows from the main body cylinder through the throttle channel L2 to the sub liquid chamber. Sealing fluid enters and exits B. The flow resistance at this time increases the damping coefficient of the device, producing a large vibration damping force.
【００１５】図３に示す如く、上記可動壁３のガイド部
３２端面にストッパゴム層３３を形成すれば、過大な振
動が入力して仕切板６や段部に当接した時の異音発生を
防止することができる。また、図４に示す如く、可動壁
３をブロック状として下面にバネ受け凹所３４を形成す
る構造としても良い。As shown in FIG. 3, if a stopper rubber layer 33 is formed on the end surface of the guide portion 32 of the movable wall 3, abnormal noise will be generated when excessive vibration is input and comes into contact with the partition plate 6 or the stepped portion. can be prevented. Alternatively, as shown in FIG. 4, the movable wall 3 may be shaped like a block and have a spring receiving recess 34 formed on its lower surface.
【００１６】[0016]
【発明の効果】以上の如く、本発明の液封入防振装置に
よれば、液シ−ルを要することなく簡易な構造により装
置特性を変更して入力振動を効果的に低減することがで
きる。[Effects of the Invention] As described above, according to the liquid-filled vibration isolator of the present invention, input vibration can be effectively reduced by changing the device characteristics with a simple structure without requiring a liquid seal. .
【図１】液封入防振装置の全体断面図である。FIG. 1 is an overall sectional view of a liquid-filled vibration isolator.
【図２】筒部材の基部横断面図である。FIG. 2 is a cross-sectional view of the base of the cylindrical member.
【図３】可動壁の他の例を示す断面図である。FIG. 3 is a sectional view showing another example of a movable wall.
【図４】可動壁のさらに他の例を示す断面図である。FIG. 4 is a sectional view showing still another example of a movable wall.
１ 防振ゴム体（室壁） ２ ゴム膜（室壁） ３ 可動壁 ４ 電磁コイル（駆動手段） ６ 仕切板 ８ 筒部材 ９ 制御回路 Ａ，Ｂ 室壁 Ｌ１ 流路 1 Anti-vibration rubber body (chamber wall) 2 Rubber membrane (chamber wall) 3 Movable wall 4 Electromagnetic coil (driving means) 6 Partition plate 8 Cylinder member 9 Control circuit A, B Room wall L1 flow path
Claims (1)
補的に変形する一対の室壁により液室を形成してこれら
液室を流路により結び、該流路内に、これを横断閉鎖す
るとともに流路方向へ摺動移動自在とした磁性体よりな
る可動壁を設け、かつ該可動壁に磁界を作用せしめて振
動入力に応じてこれを移動駆動する駆動手段を設けたこ
とを特徴とする液封入防振装置。Claim 1: A liquid chamber is formed by a pair of chamber walls connected to a vibrating body and deformed in a complementary manner in response to vibration input, and these liquid chambers are connected by a flow path, and this is transversely closed within the flow path. At the same time, a movable wall made of a magnetic material that can freely slide in the direction of the flow path is provided, and a driving means is provided for applying a magnetic field to the movable wall and driving the movable wall to move in response to vibration input. Liquid-filled vibration isolator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10674491A JPH04312230A (en) | 1991-04-11 | 1991-04-11 | Liquid seal vibration isolating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10674491A JPH04312230A (en) | 1991-04-11 | 1991-04-11 | Liquid seal vibration isolating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04312230A true JPH04312230A (en) | 1992-11-04 |
Family
ID=14441433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10674491A Pending JPH04312230A (en) | 1991-04-11 | 1991-04-11 | Liquid seal vibration isolating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04312230A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5439204A (en) * | 1993-05-17 | 1995-08-08 | Nippondenso Co., Ltd. | Vibration isolator |
-
1991
- 1991-04-11 JP JP10674491A patent/JPH04312230A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5439204A (en) * | 1993-05-17 | 1995-08-08 | Nippondenso Co., Ltd. | Vibration isolator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4793599A (en) | Electronically controlled mounting structure for mounting power unit on vehicle | |
| JP2001082531A (en) | Liquid-sealed type active mount | |
| JPH04302728A (en) | Liquid sealed vibration isolation device | |
| JPH0771515A (en) | Electronic control engine mount | |
| JPH10184774A (en) | Vibration control device | |
| JP3503288B2 (en) | Fluid-filled vibration isolator | |
| JPS60113832A (en) | Mounting device of power unit | |
| JPH04312230A (en) | Liquid seal vibration isolating device | |
| JP3778013B2 (en) | Fluid filled vibration isolator | |
| JP3595774B2 (en) | Liquid filled type vibration damping device | |
| JPH026934B2 (en) | ||
| JPH05306727A (en) | Liquid-sealed vibration control device | |
| WO2004067992A1 (en) | Liquid-seal vibration isolating device | |
| JPH02240430A (en) | Fluid sealed type tubular mount device | |
| JPS5997334A (en) | Anti-vibration device with liquid sealed in | |
| JP2588575Y2 (en) | Liquid-filled mount | |
| JPH05306728A (en) | Liquid-sealed vibration control device | |
| JPH10267072A (en) | Fluid sealed vibration isolating device | |
| JPH04312234A (en) | Liquid seal vibration isolating device | |
| WO2004067994A1 (en) | Liquid-seal vibration isolating device | |
| JPH04272532A (en) | Liquid-sealed vibrationproof device | |
| JP2861464B2 (en) | Liquid filled vibration isolator | |
| JP2917571B2 (en) | Liquid filled vibration isolator | |
| JPH0611393Y2 (en) | Vehicle anti-vibration device | |
| JPH06137360A (en) | Liquid sealed vibration control device |