JPH09210001A - Displacement sensor for bladder type hydro-pneumatic accumulator - Google Patents
Displacement sensor for bladder type hydro-pneumatic accumulatorInfo
- Publication number
- JPH09210001A JPH09210001A JP8243531A JP24353196A JPH09210001A JP H09210001 A JPH09210001 A JP H09210001A JP 8243531 A JP8243531 A JP 8243531A JP 24353196 A JP24353196 A JP 24353196A JP H09210001 A JPH09210001 A JP H09210001A
- Authority
- JP
- Japan
- Prior art keywords
- bladder
- displacement sensor
- support
- displacement
- accumulator according
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/30—Accumulator separating means
- F15B2201/315—Accumulator separating means having flexible separating means
- F15B2201/3152—Accumulator separating means having flexible separating means the flexible separating means being bladders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/50—Monitoring, detection and testing means for accumulators
- F15B2201/515—Position detection for separating means
Landscapes
- Actuator (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、圧力液体の蓄積、
緩衝などに用いるアキュムレータに関するもので、更に
述べると、ブラダ内に設けた変位センサを用いて容器主
体への規定量の液体の蓄積を検知するブラダ型アキュム
レータの変位センサに関するものである。FIELD OF THE INVENTION The present invention relates to the accumulation of pressurized liquid,
The present invention relates to an accumulator used for buffering, and more specifically to a displacement sensor of a bladder type accumulator that detects the accumulation of a specified amount of liquid in a container body using a displacement sensor provided in a bladder.
【０００２】[0002]
【従来の技術】ブラダ型アキュムレータは、容器主体内
に気密的にブラダを取り付け、このブラダ内に気体を充
填させ、前記容器主体内に充填した気体圧力に対抗して
液体を出入りさせている。2. Description of the Related Art A bladder type accumulator has a bladder mounted airtightly in a container body, gas is filled in the bladder, and liquid is allowed to flow in and out against the gas pressure filled in the container body.
【０００３】この容器主体内の液体の蓄積量は、ブラダ
内の気体充填圧力が一定条件下にあることを前提にし
て、該液体の圧力変化から間接的に計算で求めている。
しかし、この方法では、例えば、気体漏れなどによりこ
の条件に変化が生じると、正確な液体の蓄積量を求める
ことが出来なくなる。そこで、このことを考慮して一般
的には、アキュムレータの容積は、必要容積より多く設
定されている。The accumulated amount of the liquid in the container body is indirectly calculated from the pressure change of the liquid on the assumption that the gas filling pressure in the bladder is constant.
However, in this method, if this condition changes due to gas leakage, for example, it becomes impossible to accurately determine the amount of accumulated liquid. Therefore, in consideration of this, generally, the volume of the accumulator is set to be larger than the required volume.
【０００４】また、気体漏れなどにより容器主体内へ規
定以上の液体が入ると、ブラダは、許容圧縮限界を越え
て圧縮されるとともに、充填された気体が皆無に近づく
と、蓋の給気口等に押し込まれてブラダは破損してしま
う。このようにブラダが破損すると、ガス漏れが生じ、
アキュムレータは圧力液体の蓄積、緩衝作用を行なうこ
とができなくなるので、アキュムレータにとって致命的
欠陥となる。Further, when a liquid more than a specified amount enters the main body of the container due to gas leakage or the like, the bladder is compressed beyond the allowable compression limit, and when the filled gas becomes almost empty, the air supply port of the lid is closed. The bladder will be damaged by being pushed into etc. When the bladder is damaged in this way, gas leakage occurs,
The accumulator becomes a fatal defect for the accumulator since it cannot perform the function of accumulating and buffering the pressure liquid.
【０００５】そこで、この問題を解決するためアキュム
レータのブラダ挙摺動検出装置（特公平６−１７６８１
号）が用いられている。この検出装置は、ブラダの膨張
収縮により球状のエキスパンがガイドバーに案内されな
がら変位すると、該エキスパンの先端に設けられている
可変磁性体が該ガイドバーに沿って摺動し、近接スイッ
チをオンさせ、ブラダの挙動を検出するものである。Therefore, in order to solve this problem, a bladder lift sliding detection device for an accumulator (Japanese Patent Publication No. 6-17681).
No.) is used. In this detection device, when the spherical expander is displaced while being guided by the guide bar due to the expansion and contraction of the bladder, the variable magnetic body provided at the tip of the expander slides along the guide bar, and the proximity switch. Is turned on to detect the behavior of the bladder.
【０００６】[0006]
【発明が解決しようとする課題】従来例では、アキュム
レータを横置、即ち、ブラダの軸心を水平方向になる様
に配設すると、気体の封入されているブラダが浮力を受
けるため、容器主体とブラダの軸心がずれてしまい、エ
キスパンの軸方向に沿った摺動に支障をきたす。又、エ
キスパンとガイドバーとの間に大きな摩擦が生じたり、
又はブラダがエキスパン、可変磁性体及びガイドバーに
密着すると、エキスパンダは摺動不能となる。又、プリ
ーツブラダ型でないアキュムレータにおいてブラダの変
形はブラダ毎に異なり、時にはソーセージ型ブラダがひ
ょうたん型に一部が窪みセンサを包み込むことがある。
このようにブラダが包み込まれるとセンサは摺動不能と
なる。In the conventional example, when the accumulator is placed laterally, that is, the bladder has its axis centered in the horizontal direction, the bladder filled with gas receives buoyancy, so that the container main body And the axis of the bladder is displaced, which hinders the sliding of the expander along the axial direction. Also, there is a large friction between the expander and the guide bar,
Alternatively, when the bladder comes into close contact with the expander, the variable magnetic body and the guide bar, the expander cannot slide. Further, in the accumulator that is not a pleat bladder, the deformation of the bladder is different for each bladder, and sometimes the sausage-type bladder partially encases the hollow sensor in the gourd type.
When the bladder is wrapped in this way, the sensor cannot slide.
【０００７】この発明は、上記事情に鑑み、縦置は勿論
横置にしても正確にブラダ挙動変位を検出できるように
することを目的とする。In view of the above circumstances, it is an object of the present invention to accurately detect the displacement of the bladder behavior not only in the vertical position but also in the horizontal position.
【０００８】[0008]
【課題を解決するための手段】この発明は、アキュムレ
ータ内に出入りする液体により膨張収縮を繰り返すブラ
ダが容器主体に内蔵されているブラダ型アキュムレータ
において；該ブラダ内に同心状に設けられ、かつ、軸心
方向に伸びる支持体と、該支持体内に配設された近接ス
イッチと、該支持体に設けられ、かつ、ブラダ半径方向
に摺動する可動磁性体と、該支持体に設けられ、かつ、
ブラダの変位により押圧されてブラダ半径方向に摺動し
可動磁性体を近接スイッチに接近せしめるブラダ変位伝
達手段と、を備えることにより、前記目的を達成しよう
とするものである。The present invention relates to a bladder type accumulator in which a bladder that repeats expansion and contraction by a liquid flowing into and out of an accumulator is built in a container body; the bladder is concentrically provided in the bladder, and A support body extending in the axial direction, a proximity switch arranged in the support body, a movable magnetic body provided on the support body and sliding in the bladder radial direction, and provided on the support body, and ,
The bladder displacement transmitting means, which is pressed by the displacement of the bladder and slides in the radial direction of the bladder to bring the movable magnetic body closer to the proximity switch, is intended to achieve the above object.
【０００９】[0009]
【発明の実施の形態】流体出入口を有する容器主体内を
ブラダにより気体室と液体室とに仕切り、該ブラダ内に
その軸方向に伸びる同軸状の支持体を設け、該支持体内
に近接スイッチを設けるとともに、該支持体にブラダの
収縮により押圧されてブラダ半径方向、即ち、該支持体
の軸心と直交方向、に変位するブラダ変形伝達手段を設
ける。この伝達手段は可動磁性体をブラダ半径方向、即
ち、支持体の軸心と直交方向、に摺動せしめる。BEST MODE FOR CARRYING OUT THE INVENTION A container main body having a fluid inlet / outlet is partitioned into a gas chamber and a liquid chamber by a bladder, a coaxial support extending in the axial direction is provided in the bladder, and a proximity switch is provided in the support. At the same time, the support is provided with bladder deformation transmission means which is pressed by the contraction of the bladder and is displaced in the radial direction of the bladder, that is, in the direction orthogonal to the axis of the support. This transmission means slides the movable magnetic body in the radial direction of the bladder, that is, in the direction orthogonal to the axis of the support.
【００１０】このブラダ変形伝達手段は、摺動部材と受
圧部とから構成され、ブラダが変位してその内面が受圧
部を押圧すると、該摺動部材がブラダ半径方向に摺動す
る。この摺動部材の摺動により可動磁性体は該近接スイ
ッチに接近し該スイッチをオンさせる。The bladder deformation transmitting means is composed of a sliding member and a pressure receiving portion. When the bladder is displaced and its inner surface presses the pressure receiving portion, the sliding member slides in the radial direction of the bladder. By the sliding of the sliding member, the movable magnetic body approaches the proximity switch and turns on the switch.
【００１１】[0011]
【実施例１】この発明の第１実施例を図１〜図３により
説明する。容器主体１の一端に流体出入口２が螺着さ
れ、その他端に蓋体３が螺着されている。該容器主体１
には、ブラダ５が同心状に配設されている。このブラダ
５は、開口部５ａと筒状の胴部５ｂと肉厚の底部６とか
ら構成れている。この底部６は流体出入口２と対向し、
該開口部５ａのフランジ７は蓋体３により容器主体１に
圧着されている。ブラダ５はゴムや合成樹脂などの弾性
体で形成した所謂プリーツ型ブラダであり、該ブラダの
胴部５ｂには、軸心方向に伸びる肉厚部が周方向に間隔
をおいて複数配設されている。このブラダ５は変形時に
は肉薄部から規則正しく折り込まれ断面が星形となる。Embodiment 1 A first embodiment of the present invention will be described with reference to FIGS. A fluid inlet / outlet 2 is screwed to one end of the container main body 1, and a lid 3 is screwed to the other end. The container main body 1
Bladder 5 is concentrically arranged in the. The bladder 5 includes an opening 5a, a tubular body 5b, and a thick bottom portion 6. This bottom portion 6 faces the fluid inlet / outlet port 2,
The flange 7 of the opening 5a is pressure-bonded to the container body 1 by the lid 3. The bladder 5 is a so-called pleated bladder formed of an elastic body such as rubber or synthetic resin, and a plurality of thick portions extending in the axial direction are arranged at intervals in the circumferential direction on the body portion 5b of the bladder. ing. When the bladder 5 is deformed, the bladder 5 is regularly folded from the thin portion and has a star-shaped cross section.
【００１２】該ブラダ５内には、蓋体３に螺着された筒
状支持体１０が容器主体１の軸心Ｃ方向に設けられ、か
つ、同心状に配設されている。この筒状支持体１０には
複数のブラダ変位伝達手段１５が上下円周方向に設けら
れている。In the bladder 5, a cylindrical support 10 screwed to the lid 3 is provided in the axial C direction of the container main body 1 and concentrically arranged. The tubular support 10 is provided with a plurality of bladder displacement transmission means 15 in the vertical direction.
【００１３】この伝達手段１５は、摺動部材１７と、該
摺動部材１７の外側端部に設けた受圧部１８と、該受圧
部１８と該筒状支持体１０とを離間せしめるコイルばね
１９と、該摺動部材１７の内側端部に設けたストッパ２
０と、を備えている。摺動部材１７は、筒状支持体１０
にブラダ半径方向Ｄ、即ち、軸心Ｃと直交方向、に穿設
された貫通孔２１に摺動自在に挿入されている。この摺
動部材１７は、軸心Ｃ方向に間隔をおいて複数配設され
ている。The transmission means 15 includes a sliding member 17, a pressure receiving portion 18 provided at an outer end portion of the sliding member 17, and a coil spring 19 for separating the pressure receiving portion 18 from the tubular support 10. And a stopper 2 provided at the inner end of the sliding member 17.
0. The sliding member 17 is a tubular support body 10.
In the bladder radial direction D, that is, in the direction orthogonal to the axis C, is slidably inserted into the through hole 21. A plurality of the sliding members 17 are arranged at intervals in the axis C direction.
【００１４】この摺動部材１７の各内側端部には、可動
磁性体２５が設けられている。A movable magnetic body 25 is provided at each inner end of the sliding member 17.
【００１５】該筒状支持体１０内には、非磁性のパイプ
などで形成されたスイッチ支持体２８が同心状に配設さ
れ、その一端は筒状支持体１０の底部１０ａに固定さ
れ、他端は蓋体３に固定されている。この支持体２８内
には可動磁性体２５に対応する複数の近接スイッチ３０
が配設されている。この可動磁性体２５、近接スイッチ
３０の位置や設置個数は必要に応じて適宜選択される。A switch support 28 made of a non-magnetic pipe or the like is concentrically arranged in the tubular support 10, one end of which is fixed to the bottom 10a of the tubular support 10 and the other. The end is fixed to the lid 3. In the support body 28, a plurality of proximity switches 30 corresponding to the movable magnetic body 25 are provided.
Are arranged. The positions and the numbers of the movable magnetic bodies 25 and the proximity switches 30 to be installed are appropriately selected as needed.
【００１６】なお、図において、３１は流体出入口２に
摺動自在に設けられたポペット弁、３２はブラダ５を保
護するためのカップ、３３はブラダ５の外側の液体室、
３４はブラダ５の内側の気体室、３５は該気体室３４に
ガスを注入するためのガス注入口、をそれぞれ示す。In the figure, 31 is a poppet valve slidably provided in the fluid inlet / outlet 2, 32 is a cup for protecting the bladder 5, 33 is a liquid chamber outside the bladder 5,
Reference numeral 34 denotes a gas chamber inside the bladder 5, and reference numeral 35 denotes a gas inlet for injecting gas into the gas chamber 34.
【００１７】次に、本実施例の作動について説明する。
図示しない液圧回路の圧力液体Ａの圧力が上昇すると、
弁体３１が開き、該液体Ａは流体出入口２から液体室３
３内に流入する。そのため、ブラダ５は該圧力が液体Ａ
により押圧されて上方に移動し、５Ａの状態となる。こ
の時、該ブラダ５はブラダ変位伝達手段１５と接触しな
いため、該伝達手段１５の摺動部材１７は変位しない。
そのため、可動磁性体２５は移動しないので、近接スイ
ッチ３０はオンしない。Next, the operation of this embodiment will be described.
When the pressure of the pressure liquid A in the hydraulic circuit (not shown) rises,
The valve body 31 opens, and the liquid A flows from the fluid inlet / outlet 2 to the liquid chamber 3
3 flows into. Therefore, the pressure of the bladder 5 is the liquid A.
It is pressed by and moves upward, and becomes a state of 5A. At this time, since the bladder 5 does not come into contact with the bladder displacement transmitting means 15, the sliding member 17 of the transmitting means 15 does not displace.
Therefore, since the movable magnetic body 25 does not move, the proximity switch 30 does not turn on.
【００１８】更に、圧力液体Ａの圧力が上昇すると、ブ
ラダ５は該液体Ａに押圧されて軸心Ｃと直交する方向、
即ち、ブラダ半径方向Ｄに変形し、鎖線５Ｂの状態とな
る。この時、該ブラダ５はプリーツ型ブラダなので肉薄
部から折り畳まれて半径方向の断面が星形となる。Further, when the pressure of the pressure liquid A rises, the bladder 5 is pressed by the liquid A and in a direction orthogonal to the axis C,
That is, it is deformed in the bladder radial direction D, and becomes the state of the chain line 5B. At this time, since the bladder 5 is a pleat type bladder, the bladder 5 is folded from the thin portion and the radial cross section becomes a star shape.
【００１９】このブラダ５の変形によりブラダ変位伝達
手段１５の受圧部１８は、ブラダ内面と接触し、ブラダ
半径方向Ｄに押圧されるので、摺動部体１７も同方向に
摺動する。そのため、可動磁性体２５が近接スイッチ３
０に近接して２５Ａの位置になるので、該近接スイッチ
３０は可動磁性体２５の磁力に感応して作動しオン信号
を発する。この信号によりブラダの変位が検出されると
ともに警報などが発せられる。Due to the deformation of the bladder 5, the pressure receiving portion 18 of the bladder displacement transmitting means 15 comes into contact with the inner surface of the bladder and is pressed in the radial direction D of the bladder, so that the sliding portion body 17 also slides in the same direction. Therefore, the movable magnetic body 25 is used as the proximity switch 3
Since the position of 25A comes close to 0, the proximity switch 30 operates in response to the magnetic force of the movable magnetic body 25 to generate an ON signal. This signal detects the displacement of the bladder and issues an alarm.
【００２０】[0020]
【実施例２】この発明の第２実施例を図４により説明す
るが、この実施例と第１実施例との相違点は、筒状支持
体１０の軸心Ｃを介して対向するブラダ変位伝達手段１
５が、互いにずれており、非軸対象となっていることで
ある。[Embodiment 2] A second embodiment of the present invention will be described with reference to FIG. 4. The difference between this embodiment and the first embodiment is that the bladder displacement facing each other via the axis C of the tubular support 10 is different. Transmission means 1
5 is offset from each other and is non-axial.
【００２１】即ち、軸心Ｃの右側Ｒの該伝達手段１５は
軸心Ｃ方向に等間隔Ｐoをおいて複数個配設され、又、
左側Ｌの該伝達手段１５は、前記等間隔Ｐoの中間Ｐ1を
通り、かつ、軸心Ｃと直交する中間直線ＦＣ上に位置す
る。[0021] That is, said transfer means 15 on the right side R of the axis C are plural arranged at regular intervals P o in the axis C direction, and,
The transmission means 15 on the left side L is located on an intermediate straight line FC that passes through the intermediate P 1 at the equal intervals P o and is orthogonal to the axis C.
【００２２】左右両側の各伝達手段１５間の間隔は必ず
しも等間隔Ｐoにする必要はなく、例えば、筒状支持体
１０の下方になるに従い該伝達手段１５間の間隔を次第
に大きくしたり、又、右側Ｒの各伝達手段１５間の間隔
を等間隔Ｐoにし、左側Ｌの各伝達手段１５間の間隔を
筒状支持体１０の下方になるに従い次第に小さくしても
よい。The intervals between the left and right transmission means 15 do not necessarily have to be equal intervals P o . For example, the distance between the transmission means 15 may be gradually increased as the position goes below the cylindrical support 10. Further, the distance between the transmission means 15 on the right side R and at regular intervals P o, may be gradually reduced in accordance becomes the distance between the transmission means 15 on the left side L below the cylindrical support member 10.
【００２３】左側Ｌの各伝達手段１５に対する右側Ｒの
該伝達手段１５の位置は、必ずしも右側Ｒの伝達手段１
５間の間隔の中間を通り、かつ、軸心Ｃと直交する中間
直線ＦＣ上に位置する必要はなく、その中間直線ＦＣよ
り上方、又は、下方に位置する様にしてもよい。The position of the transmission means 15 on the right side R with respect to each transmission means 15 on the left side L is not necessarily the transmission means 1 on the right side R.
It does not need to be located on the intermediate straight line FC that passes through the middle of the interval between the five and is orthogonal to the axis C, and may be located above or below the intermediate straight line FC.
【００２４】この様に、左右両側Ｌ、Ｒのブラダ変位伝
達手段１５をずらし、互いに軸心Ｃと直交する同一直線
上に位置しないようにしたのは、一側、例えば、左側Ｌ
のブラダ変位伝達手段１５の磁界と、他側、例えば、右
側Ｒのブラダ変位手段１５の磁界とが互いに影響し合わ
ないようにするものである。In this way, the bladder displacement transmitting means 15 on the left and right sides L and R are displaced so that they are not located on the same straight line orthogonal to the axis C. One side, for example, the left side L
The magnetic field of the bladder displacement transmitting means 15 and the magnetic field of the bladder displacement means 15 on the other side, for example, the right side R do not affect each other.
【実施例３】この発明の第３実施例を図５、図６により
説明するが、この実施例と第１実施例との相違点は、ブ
ラダ変位伝達手段のばねがコイルばねの代わりに、断面
円弧状の弾性弁体４９が用いられいることである。この
該弁体４９は１本又は複数本の摺動部材１７により保持
され、その円周方向の両側縁は筒状支持体の外周面１０
ｓに当接している。この実施例では、ブラダ５の変位に
よりブラダ内面が弁体４９及び摺動部材１７に接触し、
該摺動部材１７をブラダ半径方向Ｄに摺動させるととも
に、可動磁性体２５が鎖線２５Ａの位置に到達した時ス
イッチ支持体２８内の近接スイッチ３０が作動しオン信
号を発する。Third Embodiment A third embodiment of the present invention will be described with reference to FIGS. 5 and 6. The difference between this embodiment and the first embodiment is that the spring of the bladder displacement transmitting means is a coil spring instead of the coil spring. That is, the elastic valve element 49 having an arcuate cross section is used. The valve body 49 is held by one or a plurality of sliding members 17, and both side edges in the circumferential direction thereof are the outer peripheral surface 10 of the cylindrical support body.
It is in contact with s. In this embodiment, the displacement of the bladder 5 causes the inner surface of the bladder to contact the valve body 49 and the sliding member 17,
The sliding member 17 is slid in the bladder radial direction D, and when the movable magnetic body 25 reaches the position of the chain line 25A, the proximity switch 30 in the switch support body 28 is activated to generate an ON signal.
【００２５】この発明の第４実施例を図７により説明す
るが、この実施例と第３実施例との相違点は、筒状支持
体１０の軸心Ｃを介して対向するブラダ変位伝達手段１
５が、互いにずれており非軸対称となっていることであ
る。A fourth embodiment of the present invention will be described with reference to FIG. 7. The difference between this embodiment and the third embodiment is that the bladder displacement transmitting means opposed to each other via the axis C of the cylindrical support body 10. 1
5 is offset from each other and is non-axisymmetric.
【００２６】即ち、軸心Ｃの右側Ｒの該伝達手段１５は
軸心Ｃ方向に等間隔Ｐ4をおいて複数個配設され、又、
左側Ｌの該伝達手段１５は、前記等間隔Ｐ4の中間Ｐ5を
通り、かつ、軸心Ｃと直交する中間直線ＦＣ上に位置す
る。That is, a plurality of the transmission means 15 on the right side R of the axis C are arranged at equal intervals P 4 in the direction of the axis C, and
The transmission means 15 on the left side L is located on an intermediate straight line FC that passes through the intermediate P 5 at the equal intervals P 4 and is orthogonal to the axis C.
【００２７】左右両側の各伝達手段１５間の間隔は、必
ずしも等間隔Ｐ4にする必要はなく、例えば、筒状支持
体１０の下方になるに従い該伝達手段１５間の間隔を次
第に大きくしたり、又、右側Ｒの各伝達手段１５間の間
隔を等間隔Ｐ4にし、左側Ｌの各伝達手段１５間の間隔
を筒状支持体１０の下方になるに従い次第に小さくして
もよい。The intervals between the transmission means 15 on both the left and right sides do not necessarily have to be equal intervals P 4, and, for example, the intervals between the transmission means 15 may be gradually increased as the cylindrical support 10 is moved downward. Alternatively, the spacing between the transmission means 15 on the right side R may be an equal spacing P 4 , and the spacing between the transmission means 15 on the left side L may be gradually reduced as it goes below the tubular support 10.
【００２８】左側Ｌの各伝達手段１５に対する右側Ｒの
伝達手段１５の位置は、必ずしも右側の伝達手段１５間
の間隔の中間を通り、かつ、軸心と直交する中間直線Ｆ
Ｃ上に位置する必要はなく、その中間直線ＦＣより上
方、又は、下方に位置する様にしてもよい。The position of the transmission means 15 on the right side R with respect to each transmission means 15 on the left side L necessarily passes through the middle of the interval between the transmission means 15 on the right side, and is an intermediate straight line F orthogonal to the axis.
It does not have to be located on C, and may be located above or below the intermediate straight line FC.
【００２９】この様に左右両側Ｌ、Ｒのブラダ変位伝達
手段１５をずらし、互いに軸心Ｃと直交する同一直線上
に位置しないようにしたのは、例えば、左側Ｌのブラダ
変位伝達手段１５の磁界と、例えば、右側Ｒのブラダ変
位手段１５の磁界とが互いに影響し合わないようにする
ためである。In this way, the bladder displacement transmission means 15 on the left and right sides L and R are displaced so that they are not located on the same straight line orthogonal to the axis C, for example, the bladder displacement transmission means 15 on the left side L. This is for preventing the magnetic field and the magnetic field of the bladder displacement means 15 on the right side R from affecting each other.
【００３０】[0030]
【実施例５】この発明の第５実施例を図８、図９により
説明するが、この実施例と第１実施例との相違点は、互
いに隣り合うブラダ変位伝達手段１５が、円周方向に角
度θずれており、螺旋状に配設されていることである。
即ち、互いに隣合うブラダ変位伝達手段１５は間隔Ｐ9
をあけ互いに角度θ＝９０゜づつずれながら順次軸心Ｃ
方向に配設されている。Fifth Embodiment A fifth embodiment of the present invention will be described with reference to FIGS. 8 and 9. The difference between this embodiment and the first embodiment is that the bladder displacement transmitting means 15 adjacent to each other are arranged in the circumferential direction. The angle θ is deviated from each other and they are arranged in a spiral shape.
That is, the bladder displacement transmitting means 15 adjacent to each other have a space P 9 between them.
Open the axis and shift the angle θ = 90 ° from each other, and the axial center C
It is arranged in the direction.
【００３１】[0031]
【発明の効果】この発明は、以上の様に構成したので、
ブラダ変位伝達手段はブラダの変形によりブラダ半径方
向に摺動して可動磁性体を同方向に変位させ、近接スイ
ッチに接近させる。そのため、従来例と異なり、ブラダ
の変位に対応してブラダ変位伝達手段が確実に摺動し可
動磁性体を変位させるので、正確にブラダの変位検出を
行なうことができる。また、ブラダ変位伝達手段はブラ
ダ変位方向に変位するので、従来例と異り、縦置は勿論
横置で使用しても正確にブラダ変位を検出することがで
きる。また、ブラダ毎に定形変形しないものでも各ブラ
ダの変位は常に一定変形なので、正確にブラダ変位を検
出できる。The present invention has been configured as described above.
The bladder displacement transmission means slides in the radial direction of the bladder due to the deformation of the bladder, displaces the movable magnetic body in the same direction, and brings it closer to the proximity switch. Therefore, unlike the conventional example, since the bladder displacement transmitting means surely slides and displaces the movable magnetic body according to the displacement of the bladder, the displacement of the bladder can be accurately detected. Further, since the bladder displacement transmitting means is displaced in the bladder displacement direction, unlike the conventional example, the bladder displacement can be accurately detected even when it is used vertically as well as vertically. Further, even if the bladder is not deformed in a fixed manner, the displacement of each bladder is always constant, so that the bladder displacement can be accurately detected.
【図１】本発明の第１実施例を示す縦断面図である。FIG. 1 is a longitudinal sectional view showing a first embodiment of the present invention.
【図２】図１の要部拡大図である。FIG. 2 is an enlarged view of a main part of FIG.
【図３】図２のIII−III線断面図である。3 is a sectional view taken along line III-III in FIG.
【図４】本発明の第２実施例を示す断面図で、図２に相
当する図である。FIG. 4 is a sectional view showing a second embodiment of the present invention and is a view corresponding to FIG.
【図５】本発明の第３実施例を示す縦断面図で、図２に
相当する図である。5 is a vertical cross-sectional view showing a third embodiment of the present invention and is a view corresponding to FIG.
【図６】図５のVI−VI線断面図で、図３に相当する図で
ある。6 is a cross-sectional view taken along the line VI-VI of FIG. 5 and corresponds to FIG.
【図７】本発明の第４実施例を示す縦断面図で、図５に
相当する図である。FIG. 7 is a vertical sectional view showing a fourth embodiment of the present invention and is a view corresponding to FIG.
【図８】本発明の第５実施例を示す斜視図である。FIG. 8 is a perspective view showing a fifth embodiment of the present invention.
【図９】図８の平面図である。FIG. 9 is a plan view of FIG.
１ 容器主体 ５ ブラダ １０ 筒状支持体 １５ ブラダ変位伝達手段 １７ 摺動部材 １８ 受圧部 １９ コイルばね ２５ 可動磁性体 ２８ スイッチ支持体 ３０ 近接スイッチ Ｃ 軸心 Ｄ ブラダ半径方向 1 Container Main 5 Bladder 10 Cylindrical Support 15 Bladder Displacement Transmission Means 17 Sliding Member 18 Pressure-Receiving Part 19 Coil Spring 25 Movable Magnetic Material 28 Switch Support 30 Proximity Switch C Shaft Center D Bladder Radial Direction
Claims (10)
り膨張収縮を繰り返すブラダが容器主体に内蔵されてい
るブラダ型アキュムレータにおいて；該ブラダ内に同心
状に設けられ、かつ、軸心方向に伸びる支持体と；該支
持体内に配設された近接スイッチと；該支持体に設けら
れ、かつ、ブラダ半径方向に摺動する可動磁性体と；該
支持体に設けられ、かつ、ブラダの変位により押圧され
てブラダ半径方向に摺動し可動磁性体を近接スイッチに
接近せしめるブラダ変位伝達手段と；を備えたことを特
徴とするブラダ型アキュムレータの変位センサ。1. A bladder-type accumulator in which a bladder that repeats expansion and contraction by a liquid flowing into and out of the accumulator is built in a container body; a support provided concentrically in the bladder and extending in the axial direction. A proximity switch disposed in the support; a movable magnetic body provided on the support and sliding in a radial direction of the bladder; provided on the support and pressed by displacement of the bladder A displacement sensor for a bladder type accumulator, comprising: a bladder displacement transmission means that slides in the radial direction of the bladder to bring the movable magnetic body closer to the proximity switch.
体とスイッチ支持体とからなる二重空間軸であることを
特徴とする請求項１記載のブラダ型アキュムレータの変
位センサ。2. The displacement sensor for a bladder accumulator according to claim 1, wherein the support body is a double space axis composed of a cylindrical support body and a switch support body which are concentrically formed.
向に間隔をおいて複数配設されていることを特徴とする
請求項１記載のブラダ型アキュムレータの変位センサ。3. A displacement sensor for a bladder accumulator according to claim 1, wherein a plurality of bladder displacement transmitting means are arranged at intervals in the axial direction of the support.
に可動な摺動部材と、該摺動部材の外側端部に設けられ
た受圧部と、該受圧部と支持体との間に介在するばね
と、からなることを特徴とする請求項１記載のブラダ型
アキュムレータの変位センサ。4. A bladder deformation transmission means is interposed between a sliding member movable in a radial direction of the bladder, a pressure receiving portion provided at an outer end portion of the sliding member, and the pressure receiving portion and a support body. The displacement sensor for a bladder accumulator according to claim 1, comprising a spring.
り、該弁体の両端部が、一対の摺動部材により支持さ
れ、両側縁部が支持体の外周面に当接していることを特
徴とする請求項４記載のブラダ型アキュムレータの変位
センサ。5. The spring is an elastic valve body having an arc-shaped cross section, both ends of the valve body are supported by a pair of sliding members, and both side edges are in contact with the outer peripheral surface of the support body. The displacement sensor for a bladder type accumulator according to claim 4, wherein.
介して対向していることを特徴とする請求項３、４又は
５記載のブラダ型アキュムレータの変位センサ。6. The displacement sensor for a bladder type accumulator according to claim 3, 4 or 5, wherein the bladder deformation transmission means are opposed to each other via the axis of the support.
軸対称であることを特徴とする請求項６記載のブラダ型
アキュムレータの変位センサ。7. Bladder deformation transmitting means facing each other,
The displacement sensor of the bladder type accumulator according to claim 6, which is axisymmetric.
おり非軸対象であることを特徴とする請求項６記載のブ
ラダ型アキュムレータの変位センサ。8. A displacement sensor for a bladder type accumulator according to claim 6, wherein the bladder deformation transmission means is arranged so as to be off-axis and is non-axial.
ていることを特徴とする請求項３記載のブラダ型アキュ
ムレータの変位センサ。9. The displacement sensor for a bladder type accumulator according to claim 3, wherein the bladder deformation transmitting means is arranged in a spiral.
とを特徴とする請求項１記載のブラダ型アキュムレータ
の変位センサ。10. The displacement sensor for a bladder type accumulator according to claim 1, wherein the bladder is a pleated type bladder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24353196A JP3507935B2 (en) | 1995-11-28 | 1996-09-13 | Bladder type accumulator |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30900895 | 1995-11-28 | ||
| JP7-309008 | 1995-11-28 | ||
| JP24353196A JP3507935B2 (en) | 1995-11-28 | 1996-09-13 | Bladder type accumulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09210001A true JPH09210001A (en) | 1997-08-12 |
| JP3507935B2 JP3507935B2 (en) | 2004-03-15 |
Family
ID=26536301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24353196A Expired - Lifetime JP3507935B2 (en) | 1995-11-28 | 1996-09-13 | Bladder type accumulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3507935B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1411280A1 (en) * | 2001-07-24 | 2004-04-21 | Nobuyuki Sugimura | Pressurized container |
| CN111536086A (en) * | 2020-05-18 | 2020-08-14 | 太原科技大学 | Electromagnetic auxiliary leather bag type constant-pressure energy accumulator |
| CN112032454A (en) * | 2020-09-21 | 2020-12-04 | 北京航空航天大学 | Gas-liquid coupling type fluid pulsation vibration damper |
-
1996
- 1996-09-13 JP JP24353196A patent/JP3507935B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1411280A1 (en) * | 2001-07-24 | 2004-04-21 | Nobuyuki Sugimura | Pressurized container |
| EP1411280A4 (en) * | 2001-07-24 | 2008-07-09 | Nobuyuki Sugimura | Pressurized container |
| CN111536086A (en) * | 2020-05-18 | 2020-08-14 | 太原科技大学 | Electromagnetic auxiliary leather bag type constant-pressure energy accumulator |
| CN111536086B (en) * | 2020-05-18 | 2021-10-29 | 太原科技大学 | Electromagnetic auxiliary leather bag type constant-pressure energy accumulator |
| CN112032454A (en) * | 2020-09-21 | 2020-12-04 | 北京航空航天大学 | Gas-liquid coupling type fluid pulsation vibration damper |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3507935B2 (en) | 2004-03-15 |
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