JPS6170207A - Servo valve - Google Patents
Servo valveInfo
- Publication number
- JPS6170207A JPS6170207A JP20328485A JP20328485A JPS6170207A JP S6170207 A JPS6170207 A JP S6170207A JP 20328485 A JP20328485 A JP 20328485A JP 20328485 A JP20328485 A JP 20328485A JP S6170207 A JPS6170207 A JP S6170207A
- Authority
- JP
- Japan
- Prior art keywords
- spool
- coil bobbin
- valve
- coil
- force motor
- 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
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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/044—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
- F15B13/0446—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors with moving coil, e.g. voice coil
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0401—Valve members; Fluid interconnections therefor
- F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Servomotors (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明はサーボ弁に係り、特に保守性に優れ、かつ高精
度な油圧制御をするのに好適な構造のサーボ弁に関する
。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a servo valve, and particularly to a servo valve that is excellent in maintainability and has a structure suitable for highly accurate hydraulic control.
従来のサーボ弁では、例えば特開＋１１５５−１０１９
８号公報に示すようにスプールとスリーブからなる弁部
とコイル及びコイルボビンとマグネットからなるフォー
スモータ部とが直接的に結合されているため、サーボ弁
の分解、組立時のフォースモータの着脱の際にはコイル
ボビンやコイルを傷つける恐れがあり、保守性に問題が
あった。For conventional servo valves, for example, Japanese Patent Application Publication No. +1155-1019
As shown in Publication No. 8, the valve part consisting of a spool and sleeve and the force motor part consisting of a coil, coil bobbin and magnet are directly connected, so when disassembling the servo valve or attaching and detaching the force motor during assembly. There was a problem with maintainability because there was a risk of damaging the coil bobbin and coil.
またコイルボビンとスプールが直接的に結合されている
ため、スプール端にコイルボビンの重量が付加されるこ
とになり、スプール、スリーブ間にミスアライメントが
生じやすいというような欠点があった。Furthermore, since the coil bobbin and the spool are directly connected, the weight of the coil bobbin is added to the end of the spool, which has the drawback of easily causing misalignment between the spool and the sleeve.
本発明の目的は、保守性に優れ、ミスアライメントを防
止するようにしたサーボ弁を提供することにある。An object of the present invention is to provide a servo valve that has excellent maintainability and prevents misalignment.
本発明は上記の目的を達成するために、流体の流量もし
くは圧力を制御するスプール及びスリーブからなる弁部
と、スプールの駆動源となるコイル、コイルボビン、マ
グネットからなるフォースモータ部を備え、前記スプー
ルとコイルボビンを間接的に支持するようにしたサーボ
弁において。In order to achieve the above object, the present invention includes a valve section consisting of a spool and a sleeve that controls the flow rate or pressure of fluid, and a force motor section consisting of a coil, coil bobbin, and magnet that serves as a driving source for the spool. and in a servo valve that indirectly supports the coil bobbin.
前記弁部とフォースモータ部の間に中間保持部材を取外
し可能に設け、前記中間保持枠にコイルボビンをプレー
ト体により保持するものである。An intermediate holding member is removably provided between the valve portion and the force motor portion, and a coil bobbin is held on the intermediate holding frame by a plate body.
以下５本発明の一実施例を図面により説明する。 An embodiment of the present invention will be described below with reference to the drawings.
図において、サーボ弁１はスプール２、スリーブ３及び
弁栓４からなる弁部５と、コイル６、コイルボビン７及
びマグネット８、ポール９．ヨーク１０からなるフォー
スモータ部１１とを主情成要素として持ち、これらにス
プール２を支持し定位性を与えるためのばね１２，１２
’ とスプール２の中立点を機械的に調整する中立点調
整用のボルト１３を備えている。またスプール２はその
両端部にスラスト玉軸受１４．１４’ を備えており、
スプール２は、スプール２のフォースモータ部側の端部
に設けたスラスト玉軸受１４を介してコイルボビン７に
ばね１２，１２’の押付力によって対接しているので、
半径方向へも変位可能であり、スリーブとスプール間に
ミスアライメントが発生しない、このフォースモータ１
１において、コイルボビン７は中間保持枠ＩＳに取外し
可能に支持された板ばね状のプレート体１６でフォース
モータ空隙部１７に適切に位置されるよう保持されてい
る。このプレート体１６はコイルボビン７のフォースモ
ータ空隙部１７への位置決めも行う。In the figure, a servo valve 1 includes a valve portion 5 consisting of a spool 2, a sleeve 3, and a valve stopper 4, a coil 6, a coil bobbin 7, a magnet 8, a pole 9. It has a force motor section 11 consisting of a yoke 10 as its main information component, and springs 12, 12 for supporting the spool 2 and providing localization thereto.
' and a neutral point adjustment bolt 13 for mechanically adjusting the neutral point of the spool 2. The spool 2 is also equipped with thrust ball bearings 14, 14' at both ends.
The spool 2 is in contact with the coil bobbin 7 through the thrust ball bearing 14 provided at the end of the spool 2 on the force motor side, and is in contact with the coil bobbin 7 by the pressing force of the springs 12 and 12'.
This force motor 1 can also be displaced in the radial direction and does not cause misalignment between the sleeve and spool.
1, the coil bobbin 7 is held so as to be appropriately positioned in the force motor cavity 17 by a leaf spring-like plate body 16 that is removably supported by the intermediate holding frame IS. This plate body 16 also positions the coil bobbin 7 in the force motor cavity 17.
このように構成したことにより、フォースモータ部１１
と弁部５との着脱は中間保持枠１５を境に行えるためコ
イルボビン７及びコイル６を傷付けることなく保守性が
良好となる。With this configuration, the force motor section 11
Since the valve portion 5 can be attached and detached using the intermediate holding frame 15 as a boundary, maintainability is improved without damaging the coil bobbin 7 and the coil 6.
すなわち、フォースモータ部１１と弁部５との着脱は、
まず、中間保持枠１５を弁体とヨーク１０から取り外す
、このとき、コイルボビン７とスプール２はスラスト玉
軸受１４を介して対接しているため、簡単に弁部５とフ
ォースモータ部１１は分離される１次にコイルボビン７
を一体的に保持したプレート体１６を中間保持枠１５か
ら取り外す、このとき、コイル６およびコイルボビン７
は、マグネット８、ヨーク１０などに傷付けることなく
フォースモータ空隙部１７内から容易に取り外すことが
できる。ちなみに、従来のサーボ弁においては、弁部と
フォースモータ部が直接結合されており、しかもコイル
ボビンとスプールがねじなどにより直接結合されていた
ため、組立時や分解時にコイルボビンをスプールから取
り外す際、コイルやコイルボビンに傷がついていた。That is, the attachment and detachment of the force motor section 11 and the valve section 5 are as follows.
First, the intermediate holding frame 15 is removed from the valve body and the yoke 10. At this time, since the coil bobbin 7 and the spool 2 are in contact with each other via the thrust ball bearing 14, the valve part 5 and the force motor part 11 can be easily separated. 1st coil bobbin 7
The plate body 16 that integrally holds the coil 6 and the coil bobbin 7 is removed from the intermediate holding frame 15.
can be easily removed from the force motor cavity 17 without damaging the magnet 8, yoke 10, etc. By the way, in conventional servo valves, the valve part and force motor part were directly connected, and the coil bobbin and spool were directly connected with screws, etc., so when removing the coil bobbin from the spool during assembly or disassembly, the coil and The coil bobbin was damaged.
また前記プレート体１６の内側には可どう性に優れたシ
ール材１８が設けられており、フォースモータ１１を作
動し流体から保護することができる。Further, a highly flexible sealing material 18 is provided inside the plate body 16, and can operate the force motor 11 and protect it from fluid.
以上述べたように１本発明によれば、コイルボビンの位
置決めを中間保持枠に固定されたプレート体で行うため
に、フォースモータの着脱が容易になると共にコイルボ
ビンとスプールを間接的に支持するようにしたので、ス
リーブとスプール間のミスアライメントを防止できる。As described above, according to the present invention, since the positioning of the coil bobbin is performed by the plate body fixed to the intermediate holding frame, the force motor can be easily attached and detached, and the coil bobbin and the spool can be indirectly supported. This prevents misalignment between the sleeve and spool.
図面は本発明のサーボ弁の一実施例を示す縦断面図であ
る。
１・・・サーボ弁、２・・・スプール、３・・・スリー
ブ、４・・・弁栓、５・・・弁部、６・・・コイル、７
・・・コイルボビン、８・・・マグネット、１１・・・
フォースモータ部、１５・・・中間保持枠、１６・・・
プレート体。The drawing is a longitudinal sectional view showing one embodiment of the servo valve of the present invention. DESCRIPTION OF SYMBOLS 1... Servo valve, 2... Spool, 3... Sleeve, 4... Valve stopper, 5... Valve part, 6... Coil, 7
...Coil bobbin, 8...Magnet, 11...
Force motor section, 15... Intermediate holding frame, 16...
plate body.
Claims (1)
ーブからなる弁部と、スプールの駆動源となるコイル、
コイルボビン、マグネツトからなるフオースモータ部を
備え、前記スプールとコイルボビンを間接的に支持する
ようにしたサーボ弁において、前記弁部とフオースモー
タ部の間に中間保持枠を取外し可能に設け、前記中間保
持枠に、コイルボビンをプレート体により保持するよう
にしたことを特徴とするサーボ弁。A valve part consisting of a spool and a sleeve that controls the flow rate or pressure of fluid, and a coil that serves as a driving source for the spool.
In a servo valve that is equipped with a force motor section consisting of a coil bobbin and a magnet and that indirectly supports the spool and coil bobbin, an intermediate holding frame is removably provided between the valve section and the force motor section, and the intermediate holding frame is A servo valve characterized in that a coil bobbin is held by a plate body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20328485A JPS6170207A (en) | 1985-09-17 | 1985-09-17 | Servo valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20328485A JPS6170207A (en) | 1985-09-17 | 1985-09-17 | Servo valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6170207A true JPS6170207A (en) | 1986-04-11 |
Family
ID=16471498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20328485A Pending JPS6170207A (en) | 1985-09-17 | 1985-09-17 | Servo valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6170207A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5094375A (en) * | 1973-12-24 | 1975-07-28 | ||
| JPS5642707A (en) * | 1979-09-14 | 1981-04-21 | Hitachi Ltd | Oil pressure servo valve |
| JPS5683606A (en) * | 1979-12-12 | 1981-07-08 | Hitachi Ltd | Servo valve |
| JPS56160407A (en) * | 1980-05-09 | 1981-12-10 | Hitachi Ltd | Hydraulic servo valve |
-
1985
- 1985-09-17 JP JP20328485A patent/JPS6170207A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5094375A (en) * | 1973-12-24 | 1975-07-28 | ||
| JPS5642707A (en) * | 1979-09-14 | 1981-04-21 | Hitachi Ltd | Oil pressure servo valve |
| JPS5683606A (en) * | 1979-12-12 | 1981-07-08 | Hitachi Ltd | Servo valve |
| JPS56160407A (en) * | 1980-05-09 | 1981-12-10 | Hitachi Ltd | Hydraulic servo valve |
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