JPS63289347A - Hydraulic damping vibration proofing mount - Google Patents
Hydraulic damping vibration proofing mountInfo
- Publication number
- JPS63289347A JPS63289347A JP12442687A JP12442687A JPS63289347A JP S63289347 A JPS63289347 A JP S63289347A JP 12442687 A JP12442687 A JP 12442687A JP 12442687 A JP12442687 A JP 12442687A JP S63289347 A JPS63289347 A JP S63289347A
- Authority
- JP
- Japan
- Prior art keywords
- partition plate
- partition
- plate
- vibration
- temperature
- 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
- 238000013016 damping Methods 0.000 title claims description 12
- 238000005192 partition Methods 0.000 claims abstract description 65
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims abstract description 15
- 230000007613 environmental effect Effects 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 34
- 238000002955 isolation Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 12
- 239000012530 fluid Substances 0.000 abstract description 3
- 239000000758 substrate Substances 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 13
- 230000006870 function Effects 0.000 description 5
- 230000004323 axial length Effects 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229920001875 Ebonite Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000004073 vulcanization Methods 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
- F16F13/26—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 characterised by adjusting or regulating devices responsive to exterior conditions
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (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）
本発明は高周波振動を防振ゴム、低周波振動をオリフィ
スで絞られ流動する液体により夫々減衰させて振動体を
防振的に支承し得る液体減衰防振マウントに関する。[Detailed Description of the Invention] (Industrial Application Field) The present invention is capable of supporting a vibrating body in a vibration-proof manner by attenuating high-frequency vibrations with vibration-proof rubber and damping low-frequency vibrations with flowing liquid squeezed through an orifice. Relating to liquid damped anti-vibration mounts.
（従来の技術）
この種の液体減衰防振マウントとしては特公昭６Ｏ−１
５８（１６号公報等によって公知とされてなるように、
一方がエンジン側に、他方が車体フレーム側に結合させ
る一組の基板と、この基板間に介挿固定された筒状のマ
ウントラバーと、このマウントラバー内に形成され、か
つ、作業流体が充填され、さらにオリフィスとして作用
する孔を介して相互に通じる２つの室と、この２つの室
を仕切る仕切板とからなると共に、いずれかの基板に固
定した前記仕切板に両室を連通ずる連通孔を開設し、該
連通孔を覆って、仕切板に、剛性薄板よりなる弁作用を
なす可動板を仕切板より浮かせて設けると共に、該連通
７Ｌとは独立して、上記オリフィスとして作用する孔を
仕切板に設けた構造であり、エンジンの微振動時には前
記可動板が開いた状態を維持して前記連通孔が開通して
いるので画室の内圧がはやく均衡して振動はマウントラ
バーの弾性変形により減衰される一方、振幅の大きい振
動は、前記可動板が閉じるために高圧側の室の流体はオ
リフィスとしての孔を経て他方の室に移動することから
、有効な振動減衰機能が果たされて、高・低周波振動に
対して防振特性が発揮されるのである。(Prior art) This type of liquid damping anti-vibration mount is
58 (as publicly known from Publication No. 16 etc.,
A set of boards, one of which is connected to the engine side and the other to the vehicle frame, a cylindrical mount rubber inserted and fixed between these boards, and a cylindrical mount rubber formed inside the mount rubber and filled with working fluid. and a communication hole that connects the two chambers to the partition plate that is fixed to one of the substrates. A movable plate made of a rigid thin plate and functioning as a valve is provided on the partition plate to cover the communication hole, and a movable plate made of a rigid thin plate is provided floating above the partition plate, and a hole that acts as the orifice is provided independently of the communication hole 7L. This structure is installed on the partition plate, and when the engine vibrates, the movable plate remains open and the communication hole opens, so the internal pressure in the compartment is quickly balanced and vibrations are suppressed by elastic deformation of the mount rubber. On the other hand, large-amplitude vibrations are damped because the movable plate closes and the fluid in the high-pressure side chamber moves to the other chamber through the orifice, so an effective vibration damping function is not achieved. , it exhibits anti-vibration properties against high and low frequency vibrations.
（発明が解決しようとする問題点）
かかる従来の防振マウントは、定常的な各振動に対して
は有効に作用するとしても、可動板と仕切板との間隔が
常に一定であることから、例えば０°Ｃ以下の低温雰囲
気で使用するとマウントラバーが硬化してハネ定数が高
くなるのと、仕切板の連通孔を通る液体に対する流動抵
抗が大きく減衰係数が大きいまま変わらないのとの現象
を併存することによって、低温域での振動伝達率が悪化
する問題があった。(Problems to be Solved by the Invention) Although such conventional anti-vibration mounts work effectively against steady vibrations, the distance between the movable plate and the partition plate is always constant. For example, when used in a low-temperature atmosphere below 0°C, the mount rubber hardens and the spring constant increases, and the flow resistance to liquid passing through the communication holes of the partition plate is large, and the damping coefficient remains large and does not change. Due to their coexistence, there was a problem that the vibration transmissibility in the low temperature range deteriorated.
かかる問題点が依然として解決されていない現状に鑑み
て本発明は成されたものであり、前記仕切板と前記可動
板との間の隙間を、低温度雰囲気の状態では自動的に拡
げ得ると共に雰囲気温度が上昇してくると再び元の原形
に復し得る構造となし、もって常温及び低温の広い温度
範囲を通じて最適な防振効果を発揮せしめることを目的
とする。The present invention has been made in view of the current situation where such problems are still unsolved, and it is possible to automatically widen the gap between the partition plate and the movable plate in a low temperature atmosphere, and to The purpose is to create a structure that can return to its original shape as the temperature rises, thereby exhibiting an optimal vibration-proofing effect over a wide temperature range from room temperature to low temperature.
＜１？Ｊ］題点を解決するための手段）そこで本発明は
ゴム防振基体に臨ませて本体内に設けた液室を仕切部材
により２つの室に・仕切り、前記仕切部材を、板厚方向
に貫通ずるオリフィス及び複数個の連通孔が周縁部及び
央部に夫々設けられて前記本体に固定した仕切板と、こ
の仕切板の中央部に遊押通した支持部材により連結させ
て前記仕切板を挟む両側に配設せしめ、複数個の前記連
通孔を交互に開閉可能となした１対の可動板とにより形
成すると共に、前記両室内に液体を封入してなる液体減
衰防振マウントにおいて、前記仕切部材の仕切板、支持
部材または可動板の少なくとも一つを、常温よりも低い
所定温度以下で変形し、前記所定温度よりも高い温度で
原形に復し得る特性を持つ形状記憶合金により形成せし
めて、仕切板と可動板との間隔を環境温度が前記所定温
度以下になった際に拡げさせる如くした構成としたもの
である。<1? J] Means for solving the problem) Therefore, the present invention divides a liquid chamber provided in the main body facing the rubber vibration-isolating base into two chambers by a partition member, and divides the partition member in the plate thickness direction. A partition plate having a penetrating orifice and a plurality of communication holes provided at the peripheral edge and the center, respectively, and fixed to the main body, and a support member loosely pushed through the center of the partition plate to connect the partition plate. In the liquid damping vibration isolation mount formed by a pair of movable plates disposed on both sides of the sandwiching plate, the plurality of communication holes being able to be opened and closed alternately, and liquid being sealed in both chambers, At least one of the partition plate, support member, or movable plate of the partition member is made of a shape memory alloy that has the property of deforming below a predetermined temperature lower than room temperature and returning to its original shape at a temperature higher than the predetermined temperature. The space between the partition plate and the movable plate is widened when the environmental temperature falls below the predetermined temperature.
（作用）
本発明は仕切部材における形状記憶合金により形成して
なる部材が低い環境温度のときには変形することにより
仕切板と可動板との間隔を拡げるために振幅の大きい振
動に対する減衰係数を小さくでき、同時にゴム防振体の
バネ定数も小さくすることができる。(Function) According to the present invention, the member made of a shape memory alloy in the partition member deforms when the environmental temperature is low, thereby increasing the distance between the partition plate and the movable plate, thereby reducing the damping coefficient for vibrations with large amplitude. At the same time, the spring constant of the rubber vibration isolator can also be reduced.
かくして低温域の振動伝達率を下げて防振効果を高め得
る。In this way, the vibration transmission rate in the low temperature range can be lowered and the vibration isolation effect can be enhanced.
（実施例）
以下、本発明の実施例を添付図面にもとづいて詳述する
。(Example) Hereinafter, an example of the present invention will be described in detail based on the accompanying drawings.
第１図は本発明の１例の防振マウントであって、この防
振マウントは、本体（１）、金具（５）、ダイアンラム
（６）及び仕切部材（７）を主要構成部材として有する
。FIG. 1 shows an example of a vibration-proof mount according to the present invention, and this vibration-proof mount has a main component (1), a metal fitting (5), a dian ram (6), and a partition member (7) as main components. .
本体ｆｌ）は中心部に取付用ボルト００）を固着し突設
させて有する第１板体（４）と、この外側に同軸配置し
た金属筒体（３）と、この金属筒体（３）の一端部と第
１板体（４）の片側面との間に亘らせ加硫接着により一
体に固着させたゴム防振基体（２）とからなっていて、
ゴム防振基体（２）は厚肉のゴム弾性体により形成して
、エンジンなど支承体が振動したときは、ゴム防振基体
（２）が動的な圧縮撓みを受は防振作用をなすようにな
っている。The main body fl) includes a first plate (4) having a mounting bolt 00) fixed and protruding in the center, a metal cylinder (3) coaxially arranged on the outside of the first plate (4), and the metal cylinder (3). It consists of a rubber vibration-proofing base (2) that extends between one end and one side of the first plate (4) and is fixed together by vulcanization adhesive,
The rubber vibration isolating base (2) is formed of a thick rubber elastic body, and when a supporting body such as an engine vibrates, the rubber vibration isolating base (2) receives dynamic compressive deflection and acts as a vibration damper. It looks like this.
一方、前記金具（５）は、ハント形状をなしていて、取
付用ボルト０１１を中央部に突出させて固着せしめて前
記取付用ボルトα０）に対称させていると共に、適当個
所に空気孔（２）を穿設せしめていて、金具（５）の周
縁部を前記本体（１）における金属筒体（３）の他側端
部に被冠した後、加締めることによって本体（１）に固
着一体させている。On the other hand, the metal fitting (5) has a hunt shape, and has a mounting bolt 011 protruding from the center and fixed therein to make it symmetrical to the mounting bolt α0), and air holes (2) at appropriate locations. ), and after capping the peripheral edge of the metal fitting (5) on the other end of the metal cylinder (3) of the main body (1), it is fixed and integrally attached to the main body (1) by crimping. I'm letting you do it.
次いで前記ダイアフラム（６）はゴム膜とその周囲に一
体固着した金属短筒とからなり、前記金属筒体（３）の
開口端を掩塞するように、前記金属短筒を金属筒体（３
）に圧嵌入し溶着することによって、金属筒体（３）の
前記開口端はダイアフラム（６）によって気密下に閉塞
される。Next, the diaphragm (6) consists of a rubber membrane and a short metal tube that is integrally fixed around the rubber membrane, and the short metal tube is attached to the metal tube (3) so as to cover the open end of the metal tube (3).
), the open end of the metal cylinder (3) is hermetically closed by the diaphragm (6).
かく構成した防振マウントは、ゴム防振基体（２）の内
面、金属筒体（３）のゴム膜が密着された内壁面及びダ
イアフラム（６）の片側面を周壁面とした密閉構造の液
室が形成されるが、この液室には仕切部材（７）を横断
的に介設させていて、この仕切部材（７）により、液室
は隣り合う第１液室（８）と第２液室（９）とに仕切ら
れ、第１液室（８）はゴム防振基体（２）に臨み、第２
液室（９）はダイアフラム（６）に臨むように設けられ
る。The vibration isolating mount constructed in this way has a liquid-tight structure in which the inner surface of the rubber vibration isolating base (2), the inner wall surface of the metal cylinder (3) to which the rubber membrane is tightly adhered, and one side of the diaphragm (6) are the surrounding walls. A partition member (7) is interposed transversely in this liquid chamber, and this partition member (7) separates the liquid chamber from the adjacent first liquid chamber (8) and second liquid chamber. The first liquid chamber (8) faces the rubber anti-vibration base (2), and the second liquid chamber (9) faces the rubber vibration isolation base (2).
The liquid chamber (9) is provided so as to face the diaphragm (6).
上記仕切部材（７）は金属筒体（３）に圧嵌大してその
中間部に固定した仕切板Ｏｊと、この仕切板０１を挟む
両側に適当な間隔を存し平行に配設した一対の可動板Ｑ
４１，０４１と、それ等両回動板Ｑ４）、 Ｑ４）を仕
切板０′５に関連して弁作動が可能な如く支持する支持
部材０ωとから形成される。The partition member (7) includes a partition plate Oj which is press-fitted into the metal cylinder body (3) and fixed in the middle thereof, and a pair of movable parts which are arranged in parallel with an appropriate distance on both sides of the partition plate 01. Board Q
41,041, and a support member 0ω that supports both rotating plates Q4), Q4) in relation to the partition plate 0'5 so as to enable valve operation.
仕切板０１は、周縁部を厚肉に、この周縁部に囲まれる
央部を薄肉に形成した例えば合成樹脂からなる円板であ
って、厚肉の周縁部には、円周の一部を残して周面に開
口する円弧状の溝０７１を凹設せしめて、この溝０ηの
一端から延ばして第１液室（８）に臨む面に開口させた
連通路Ｑ８）を設け、また、溝Ｑ７１の他端から延ばし
て第２液室（９）に臨む面に開口かさせた連通路α９）
を設けており、この溝０７）と両速通路αψ、０９）と
によって、前記両液室（８１，（９）を連通ずるために
仕切板０１の板厚方向に貫通させたオリフィス０６１が
形成される。The partition plate 01 is a circular plate made of synthetic resin, for example, with a thick peripheral edge and a thin central area surrounded by the peripheral edge, and a part of the circumference is formed in the thick peripheral edge. An arc-shaped groove 071 that opens on the circumferential surface of the groove 071 is recessed, and a communication passage Q8) that extends from one end of the groove 0η and opens on the surface facing the first liquid chamber (8) is provided. A communication path α9) extending from the other end of Q71 and opening on the surface facing the second liquid chamber (9)
The groove 07) and the double-speed passage αψ, 09) form an orifice 061 that passes through the partition plate 01 in the thickness direction to communicate the two liquid chambers (81, (9)). be done.
仕切板α■はさらに薄肉の央部に対して板厚方向に貫通
する小径の連通孔１２０）を複数個分散させて穿設せし
めている。The partition plate α■ is further provided with a plurality of small-diameter communicating holes 120) distributed in the thin center portion thereof and penetrating in the thickness direction of the plate.
一方、一対の可動板Ｑ４１，０４）は、硬質ゴムを素材
として円板に形成していて、連通孔（２０１，（２１１
１が設けられている仕切板Ｑ３１の央部に対向し得る所
定の大きさを有すると共に、連通孔（２１１１，１２０
＋を閉塞可能なように、対向側の面を平坦に仕上げてお
り、中心部に支持用座金（２１）を一体に有している。On the other hand, the pair of movable plates Q41, 04) are formed into discs made of hard rubber, and have communicating holes (201, (211)).
It has a predetermined size that can face the center part of the partition plate Q31 where the communication holes (2111, 120
The opposing surface is finished flat so that the + can be closed, and a supporting washer (21) is integrally provided in the center.
そして一対の可動板Ｑ４１．Ｑ４１は、相互間の間隔が
一定となり、かつ仕切板α■の対向面との間隔が所定値
となる如き平行状態に保持するために、支持部材０５１
によって両板Ｑ４１．Ｑ４１を連結せしめている。And a pair of movable plates Q41. Q41 is a support member 051 in order to maintain a parallel state in which the distance between them is constant and the distance between them and the opposing surface of the partition plate α■ is a predetermined value.
By both boards Q41. Q41 is connected.
上記支持部材ａつは、前記支持用座金（２１）、 （２
１）と、仕切板α３）の中心部に設けた孔に遊押通させ
て両支持用座金（２１）、 （２１）に亘らせ係合した
ピン（２２）と、両座金（２１）、 （２１）及びピン
（２２）に関連させてピン（２２）に嵌装した３個のコ
イルバネ（２３） 、 （２４） 、 （２５）とを要
素部材として有する。The support member a includes the support washer (21), (2
1), a pin (22) loosely pushed through a hole provided in the center of the partition plate α3) and engaged with both support washers (21), (21), and both washers (21). , (21) and three coil springs (23), (24), (25) fitted to the pin (22) in association with the pin (22) as element members.
３個のコイルハネ（２３） 、 （２４） 、 （２５
）のうちコイルバネ（２３）は一対の支持用座金（２１
）、 （２１）間に介在させ、また残りの両コイルバネ
（２４） 、 （２５）はピン（２２）の端の頭部と支
持用座金（２１）との間に介在させていて、コイルバネ
（２３）の弾力と２個のコイルバネ（２４） 、 （２
５）の弾力とが均衡する状態で前記両回動板α４）、０
４１の間隔が一定に保持されるようになっている。3 coil wings (23), (24), (25
), the coil spring (23) is attached to a pair of supporting washers (21
) and (21), and the remaining coil springs (24) and (25) are interposed between the head of the end of the pin (22) and the support washer (21), and the coil springs ( 23) elasticity and two coil springs (24), (2
5) in a state where the elasticity is balanced, both rotating plates α4), 0
41 is kept constant.
しかして、一対の支持用座金（２１）、 （２１）間に
介在してなるコイルバネ（２３）は、他のコイルバネ（
２４） 、 （２５）とは異なる材料の形状記憶合金に
よって形成させていて、この点が本発明に関し特徴とな
るところであるが、この形状記憶合金、例えばＮｉ−Ｔ
ｉ合金を素材としてコイルハネに巻回してなり、マルテ
ンサイト状態にあるものを低温でコイルバネの軸方向長
が大となる如く変形処理した後、加熱して所定の軸方向
長になるようにしたバネを用いている。Therefore, the coil spring (23) interposed between the pair of supporting washers (21), (21) is different from the other coil spring (21).
24) and (25), and this point is a feature of the present invention.
A spring made of i-alloy wound into a coil spring, which is in a martensitic state, is deformed at low temperature to increase the axial length of the coil spring, and then heated to a predetermined axial length. is used.
上述する形状記憶合金よりあるコイルバネ（２３）を有
する支持部材０ωにより支持された一対の可動板Ｑ４１
．Ｑ４１は、常温例えば２０℃乃至３５℃の雰囲気の下
では、第２図に示す如く、コイルハネ（２３）が原型を
保持して両回動板Ｑ４１，０４１の間隔はｔ＋２６、（
但しｔは仕切板α■薄肉部の厚み、δ１は仕切板ＯＪと
可動板（１４１との間隔）となる。A pair of movable plates Q41 supported by a support member 0ω having a coil spring (23) made of the above-mentioned shape memory alloy.
．． In Q41, in an atmosphere at room temperature, for example, 20°C to 35°C, the coil spring (23) maintains its original shape and the distance between the two rotating plates Q41, 041 becomes t+26, (
However, t is the thickness of the thin part of the partition plate α■, and δ1 is the distance between the partition plate OJ and the movable plate (141).
一方、雰囲気温度が低くて例えば０℃以下の温度状態に
存するときは、第３図に示すように、コイルバネ（２３
）が軸方向長を大きくする方向に変形するので、該バネ
（２３）の弾力と他のハネ（２４） 、 （２５）の弾
力とが均衡する状態になるように可動板Ｑ４１．αａ相
互間の間隔は拡がってｔ＋２δ２となり、仕切板０３）
と可動板０４）との間隔は当然大きくなってくる。On the other hand, when the ambient temperature is low, for example below 0°C, the coil spring (23
) is deformed in the direction of increasing the axial length, the movable plate Q41. The distance between αa increases to t+2δ2, and the partition plate 03)
Naturally, the distance between the movable plate 04) and the movable plate 04) becomes larger.
一方、コイルハネ（２３）に替えて、成る温度以上で収
縮するような形状記憶合金で形成した部材を使用してハ
ネ特性を維持させるようにしたものでも良く、この例で
は低温になるとコイルハネ（２４）。On the other hand, instead of the coil springs (23), a member made of a shape memory alloy that contracts at a temperature higher than that of the coil springs (23) may be used to maintain the spring characteristics. ).
（２５）との均衡がくずれて、その収縮によりハネ（２
３）は伸長して、その結果、可動板０４）は間隔が拡が
る方向に動いて低温での防振効果を高めることが可能で
ある。The balance with (25) is disrupted, and its contraction causes the spring (2
3) is expanded, and as a result, the movable plate 04) moves in the direction of widening the gap, making it possible to enhance the vibration isolation effect at low temperatures.
また、コイルハネ（２４） 、 （２５）に替えて、形
状記憶合金を使用し、ハネ（２３）にコイルバネを使用
しても同様の効果を奏することができる。Furthermore, the same effect can be obtained by using a shape memory alloy instead of the coil springs (24) and (25) and using a coil spring for the spring (23).
実際には、コイルハネ（２４） 、 （２５）に低温時
収縮して可動板０４１を拡げる如き形状記憶合金を使用
して防振効果を上げることができ、温度上昇によりコイ
ルバネ（２３）との均衡がくずれることによってコイル
ハネ（２３）の収縮で原形に復帰し得る構造のもの、ま
た、コイルバネ（２４） 、 （２５）にある温度以上
で伸長するような形状記憶合金で形成したもの＝ １１
−
を配しバネ特性を維持させ、低温になるとコイルハネ（
２３）との均衡がくずれてコイルハネ（２３）の伸長力
が優り、その結果、コイルハネ（２４） 、 （２５）
のばねが収縮して防振効果を高め得る構造のものが好例
として挙げられる。In reality, it is possible to improve the vibration damping effect by using a shape memory alloy in the coil springs (24) and (25) that contracts at low temperatures and expands the movable plate 041, and as the temperature rises, the balance with the coil spring (23) is improved. Those with a structure that can return to the original shape by contraction of the coil spring (23) when the coil springs (24) and (25) collapse, and those made of a shape memory alloy that expands at a temperature above a certain temperature of the coil springs (24) and (25) = 11
- The coil springs (
23) is disrupted, the extension force of the coil springs (23) becomes superior, and as a result, the coil springs (24) and (25)
A good example is a structure in which the spring contracts to enhance the vibration-proofing effect.
以上述べた構成及び作用を有する仕切部材（７）を用い
てなる防振マウントは、第１，２両液室（８）。The vibration-proof mount that uses the partition member (7) having the configuration and function described above has both the first and second liquid chambers (8).
（９）内に不凍液などの液体を所要量封入せしめて防振
体が完成され、これを両数付用ポル）００１． （＋＋
）により例えば自動車の車体フレームとエンジンとの結
合個所にエンジン支承用として配設せしめる。The vibration isolator is completed by filling the required amount of liquid such as antifreeze in (9). (++
), it is disposed, for example, at the connection point between the body frame of an automobile and the engine as an engine support.
この場合、走行中の高周波振動は基本的にゴム防振基体
（２）により吸収され、一方、アイドリング振動などの
低・中周波振動は前記両液室（８１，（９１内の液体を
オリフィス０６）を介し可逆的に流動させることによっ
て吸収される。In this case, high frequency vibrations during running are basically absorbed by the rubber vibration isolating base (2), while low and medium frequency vibrations such as idling vibrations are absorbed by the liquid in the two liquid chambers (81, (91). ).
しかして低・中周波振動に関しては振幅が大きいので可
動板０４）は一方が仕切板０３）の薄肉平板部に接当し
た状態となって貫通孔ｅωを塞いでいるので液体の流通
はオリフィス０６）の個所だけで行われ、一方、高周波
振動の場合は、振動の振幅が小さくて普通では両液室（
８１，＋９１の液圧が上昇するものであるが、可動板（
１４）が振動しやすくてこの振動により第２図に示され
る如く、貫通孔＋２０＋が開通し可動板Ｑ４）、 ０４
１が離れた状態が長くなって、各貫通孔ＱＯ）・・・を
介しても液の流通が行われるので液室（８）、 （（１
１の液圧は低域が保持される。However, since the amplitude of low- and medium-frequency vibrations is large, one side of the movable plate 04) is in contact with the thin flat plate part of the partition plate 03), blocking the through hole eω, so that the liquid flows through the orifice 06. On the other hand, in the case of high-frequency vibration, the vibration amplitude is small and normally both liquid chambers (
81, +91 hydraulic pressure increases, but the movable plate (
14) tends to vibrate, and this vibration causes the through hole +20+ to open, as shown in FIG. 2, and the movable plate Q4), 04
1 is separated from each other for a long time, and the liquid also flows through the through holes (QO)..., so the liquid chambers (8),
The hydraulic pressure of 1 is maintained in the low range.
かかる防振作用をなす防振マウントが厳寒時など低温度
の環境下に置かれた場合を考えると、ゴム防振基体（２
）は温度低下により硬化しバネ定数が上昇するが、一方
、可動板０４）、 （１４１は支持部材（７）の変形に
よって第３図より明らかなように仕切板（１３１との間
隔（δ２）が広くなるので、各貫通孔ＱＯ）、 ＱＯ＋
を流通する液体に対する流動抵抗は常温時に比し小さく
なる結果、液分による減衰係数を丁げることとなり、か
くして総合的に低温域での防振効果を高く維持すること
が可能となる。Considering the case where a vibration isolating mount that performs such a vibration isolating effect is placed in a low temperature environment such as during severe cold, it is necessary to use a rubber vibration isolating base (2
) hardens and the spring constant increases as the temperature decreases, but on the other hand, the distance (δ2) between movable plates 04) and (141) and the partition plate (131) increases due to deformation of the support member (7), as is clear from Fig. 3. becomes wider, so each through hole QO), QO+
As a result, the flow resistance to the flowing liquid becomes smaller than that at room temperature, reducing the damping coefficient due to the liquid content, thus making it possible to maintain a high overall vibration damping effect in the low temperature range.
以上説明した例は、仕切部材（７）に関して支持部材０
５）に形状記憶合金からなるコイルハネを使用すること
により、仕切板０３）と可動板０４）との間隔を低温時
に拡げさせる機能を有せしめているが、かかる機能を発
揮させるための変型は種々考えられ、例えば第４図に示
す如く可動板０４）の心材（２６）として形状記憶合金
からなる板体を用い、環境温度が低下した際に相手方の
可動板間から遠去かる方向に反りが生じる構造となして
、仕切板（１３１との間隔を実質的に拡げさせることも
可能であり、また、第５図に示す如く、仕切板０３）の
貫通孔（２０）が設けられてなる薄肉平板部と前記心材
と同じく反りが生じ得る形状記憶合金の板体により形成
することによって仕切板０３）との間隔を実質的に拡げ
させることも可能であって、かかる変型も本発明に包含
されるものであり、従って仕切部材（７）の仕切板θ３
）、支持部材０５）又は可動板０４）の少なくとも一つ
を形状記憶合金により形成せしめることが本発明の要件
である。In the example explained above, the support member 0 with respect to the partition member (7)
By using a coil spring made of a shape memory alloy in 5), it has the function of widening the distance between the partition plate 03) and the movable plate 04) at low temperatures, but there are various modifications to achieve this function. For example, as shown in Fig. 4, a plate made of a shape memory alloy is used as the core material (26) of the movable plate 04), and when the environmental temperature decreases, the warpage occurs in the direction away from the other movable plate. As for the resulting structure, it is also possible to substantially widen the distance from the partition plate (131), and as shown in FIG. It is also possible to substantially increase the distance between the flat plate part and the partition plate 03) by forming the flat plate part from a shape memory alloy plate body which can warp like the core material, and such a modification is also included in the present invention. Therefore, the partition plate θ3 of the partition member (7)
), the support member 05), or the movable plate 04) is a requirement of the present invention that at least one of the support member 05) or the movable plate 04) is formed of a shape memory alloy.
（発明の効果）
本発明は仕切部材（７）の仕切板０３）、可動板Ｑ４１
又は支持部材０５）の少なくとも一部を形状記憶合金に
より形成せしめて、仕切板０３１と可動板０４）との間
隔を環境温度が常温よりも低い所定温度以下になった際
、拡げさせる如く成すことにより、仕切板０３）に設け
た貫通孔（２８）を流通する液体の流動抵抗を低減でき
、その結果、ゴム防振基体（２）が低温下で硬化してバ
ネ定数の上昇を招くのに対してこれを補完することがで
き、かくして低温域での振動伝達率を下げて防振効果を
高め得る利点を有する。(Effect of the invention) The present invention provides partition plate 03) of partition member (7), movable plate Q41
Alternatively, at least a part of the support member 05) is made of a shape memory alloy so that the distance between the partition plate 031 and the movable plate 04) is expanded when the environmental temperature falls below a predetermined temperature lower than room temperature. As a result, the flow resistance of the liquid flowing through the through holes (28) provided in the partition plate 03) can be reduced, and as a result, the rubber vibration isolating base (2) can harden at low temperatures, causing an increase in the spring constant. On the other hand, it has the advantage of being able to supplement this, thus lowering the vibration transmission rate in the low temperature range and increasing the vibration damping effect.
第１図は本発明の１実施例に係る断面木構造図、第２図
及び第３図は第１図に示す例における仕切部材の常温使
用時及び低温使用時の動態説明図、第４図及び第５図は
本発明の各実施例に係る仕切部材の略示断面図である。
（１１・・・本体、 （２）・・・ゴム防振基体、（７
）・・・仕切部材、 （８）・・・第１液室、（９）・
・・第２液室、 α■・・・仕切板、０船・・・可動板
、 ａつ・・・支持部材、α６）・・・オリフィス、
ｔ２ｍ・・・貫通孔。
第１図
第２図
第３図
第４図
第５図Fig. 1 is a cross-sectional tree structure diagram according to an embodiment of the present invention, Figs. 2 and 3 are explanatory diagrams of the dynamics of the partition member in the example shown in Fig. 1 when used at normal temperature and when used at low temperature, and Fig. 4 and FIG. 5 are schematic cross-sectional views of partition members according to each embodiment of the present invention. (11...Main body, (2)...Rubber vibration isolation base, (7
)...Partition member, (8)...First liquid chamber, (9)...
...2nd liquid chamber, α■...partition plate, 0 ship...movable plate, atsu...support member, α6)...orifice,
t2m...through hole. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5
Claims (1)
部材により２つの室に仕切り、前記仕切部材を、板厚方
向に貫通するオリフィス及び複数個の連通孔が周縁部及
び央部に夫々設けられて前記本体に固定した仕切板と、
この仕切板の中央部に遊挿通した支持部材により連結さ
せて前記仕切板を挟む両側に配設せしめ、複数個の前記
連通孔を交互に開閉可能となした一対の可動板とにより
形成すると共に、前記両室内に液体を封入してなる液体
減衰防振マウントにおいて、前記仕切部材の仕切板、支
持部材または可動板の少なくとも一つを、常温よりも低
い所定温度以下で変形し、前記所定温度よりも高い温度
で原形に復し得る特性を持つ形状記憶合金により形成せ
しめて、仕切板と可動板との間隔を環境温度が前記所定
温度以下になった際に拡げさせる如くしたことを特徴と
する液体減衰防振マウント。1. A liquid chamber provided in the main body facing the rubber vibration isolating base is partitioned into two chambers by a partition member, and an orifice and a plurality of communication holes passing through the partition member in the thickness direction are arranged at the peripheral edge and in the center. partition plates provided in each section and fixed to the main body;
A pair of movable plates are connected to each other by a supporting member loosely inserted through the center of the partition plate, and are disposed on both sides of the partition plate so that the plurality of communicating holes can be opened and closed alternately. , in the liquid damping vibration isolation mount in which liquid is sealed in both chambers, at least one of the partition plate, the support member, or the movable plate of the partition member is deformed at a predetermined temperature lower than normal temperature, and the predetermined temperature The space between the partition plate and the movable plate is widened when the environmental temperature falls below the predetermined temperature by forming the partition plate from a shape memory alloy that has the property of being able to return to its original shape at a temperature higher than that of the partition plate. Liquid damped anti-vibration mount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12442687A JPS63289347A (en) | 1987-05-20 | 1987-05-20 | Hydraulic damping vibration proofing mount |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12442687A JPS63289347A (en) | 1987-05-20 | 1987-05-20 | Hydraulic damping vibration proofing mount |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63289347A true JPS63289347A (en) | 1988-11-25 |
Family
ID=14885192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12442687A Pending JPS63289347A (en) | 1987-05-20 | 1987-05-20 | Hydraulic damping vibration proofing mount |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63289347A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011109889A1 (en) * | 2011-08-10 | 2013-02-14 | Carl Freudenberg Kg | Hydraulic damping bearing, has actuator formed by metallic spring made of shape memory alloy, and positioning device comprising electrical connector for spring that is electrically heated by connector |
| CN105065560A (en) * | 2015-06-10 | 2015-11-18 | 浙江大学 | Ultralow-frequency hydraulic-pressure vibration isolation device based on shape memory alloy spring |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5965635A (en) * | 1982-10-06 | 1984-04-13 | Toyota Motor Corp | Vibrationproof rubber device |
| JPS6145130A (en) * | 1984-08-07 | 1986-03-05 | Toyo Tire & Rubber Co Ltd | Liquid damping type vibration insulating supporting device |
-
1987
- 1987-05-20 JP JP12442687A patent/JPS63289347A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5965635A (en) * | 1982-10-06 | 1984-04-13 | Toyota Motor Corp | Vibrationproof rubber device |
| JPS6145130A (en) * | 1984-08-07 | 1986-03-05 | Toyo Tire & Rubber Co Ltd | Liquid damping type vibration insulating supporting device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011109889A1 (en) * | 2011-08-10 | 2013-02-14 | Carl Freudenberg Kg | Hydraulic damping bearing, has actuator formed by metallic spring made of shape memory alloy, and positioning device comprising electrical connector for spring that is electrically heated by connector |
| CN105065560A (en) * | 2015-06-10 | 2015-11-18 | 浙江大学 | Ultralow-frequency hydraulic-pressure vibration isolation device based on shape memory alloy spring |
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