JPS6078173A - Direction control valve - Google Patents
Direction control valveInfo
- Publication number
- JPS6078173A JPS6078173A JP59179508A JP17950884A JPS6078173A JP S6078173 A JPS6078173 A JP S6078173A JP 59179508 A JP59179508 A JP 59179508A JP 17950884 A JP17950884 A JP 17950884A JP S6078173 A JPS6078173 A JP S6078173A
- Authority
- JP
- Japan
- Prior art keywords
- valve body
- control valve
- main valve
- chamber
- pressure
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/38—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side
- F16K31/385—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side the fluid acting on a diaphragm
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
- Safety Valves (AREA)
- Fluid-Driven Valves (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は、方向制御弁であって、圧力媒体によって制御
された主弁体が軸方向に摺動可能に支承されかつ少なく
とも１つの圧力導管と主弁体によって遮断可能な作業導
管とが開口している主弁室と、この主弁室の軸方向の延
長に配置されかつこの主弁室から、一方では弁ケーシン
グに固定的に締込まれかつ他方では主弁体と結合された
軸方向に可動なダイヤフラムｌこよって仕切られた制御
弁室と、一方の終端位置では圧力導管と接続された接続
導管と制御弁室とを接続し、他方の終端位置では制御弁
室と制御排気導管とな接続する作動可能な制御弁体とを
有し、制御弁室から負荷されろダイヤプラム並びに主弁
体の面が、主弁体の他端部に於ける反対方向に負荷され
る面よりも大きく、接続導管が主弁体の中央を軸方向に
圧力導管と向き合った端面から延びる貫通孔として構成
されており、制御弁体が制御弁室の中央にかつ貫通孔の
制御弁室における開（コと向き合って配置されている゛
形式のものに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a directional control valve in which a main valve body controlled by a pressure medium is slidably supported in the axial direction and can be shut off by at least one pressure conduit and the main valve body. a main valve chamber into which a working conduit opens; a main valve chamber arranged in an axial extension of this main valve chamber and from which a main valve body is fixedly clamped into the valve casing on the one hand and on the other hand a main valve body; An axially movable diaphragm L connected to the control valve chamber connects the control valve chamber with a connecting conduit connected to the pressure conduit in one end position and the control valve chamber in the other end position. an operable control valve body connected to the control valve chamber and a control exhaust conduit, the diaphragm and the face of the main valve body being loaded from the control valve chamber in opposite directions at the other end of the main valve body; The connecting conduit is configured as a through hole extending axially through the center of the main valve body from the end face facing the pressure conduit, and the control valve body is located in the center of the control valve chamber and in the center of the through hole. This type of control valve is located opposite the opening in the control valve chamber.
前記形式の公知の方向制御弁においては制御弁体は主弁
体と同じように半径方向のアームに弾性的に懸垂されて
いる。このアームは死点を越えた後で制御弁体の運動を
相応した方向に助ける。この場合制御弁体は主弁体にお
ける貫通孔の開口を直接的にシールする。両方の弁体は
その一方の終端位置に達するためには相互に向き合って
運動させられるので、制御弁体の渦動行程が主弁体をそ
の弁座から離さないようにするためには、制御弁体の作
動装置を可撓性に構成する必要がある。圧力導管と接続
された貫通孔は、切換え過程に於て、制御弁室が排気さ
れた後で主弁体が他方の終端位置にあると閉じられるの
で、制御弁室の排気過程の大部分においては圧力導管か
らの圧力媒体の流入が認められる。In known directional control valves of this type, the control valve body, like the main valve body, is suspended elastically from a radial arm. This arm assists the movement of the control valve body in the corresponding direction after passing the dead center. In this case, the control valve body directly seals the opening of the through hole in the main valve body. Since both valve discs are moved towards each other in order to reach their one end position, in order to prevent the swirl stroke of the control valve disc from lifting the main valve disc away from its seat, the control valve There is a need for a flexible configuration of the body actuation device. The through hole connected to the pressure conduit is closed during the switching process when the main valve body is in the other end position after the control valve chamber has been evacuated, so that during the majority of the evacuating process of the control valve chamber. Inflow of pressure medium from the pressure conduit is recognized.
本発明の課題は冒頭に述べた形式の方向制御弁な改良し
て、製作を簡単にし、不緊密性を生せしめろことなしに
作動形式とは無関係に渦動行程を許し、排気過程が略圧
力導管からの圧力媒体の流入なしで行ブ’Ｌわれるよう
にすることである。It is an object of the invention to improve the directional control valve of the type mentioned at the outset so as to simplify its manufacture and to allow a vortex stroke independently of the operating type without creating any tightness, so that the exhaust process can be carried out under almost no pressure. It is to be possible to carry out the operation without the inflow of pressure medium from the conduit.
この課題は本発明によれば、主弁体の貫通孔内に小管が
主弁体に対して相対的に移動可能に配置されており、こ
の小管が一方の端部に制御弁体の弁座面を有し、この小
管が制御弁体に向かつては規定された終端位置を占める
のに対して、反対方向には弾性的に保持されていること
によって解決された。According to the present invention, a small pipe is disposed in a through hole of the main valve body so as to be movable relative to the main valve body, and this small pipe is provided with a valve seat of the control valve body at one end. The solution is that the small tube has a surface and assumes a previously defined end position towards the control valve body, whereas it is held elastically in the opposite direction.
本発明によって改良された方向制御弁に於ては、小管に
おける制御弁体の弁座は可撓性に構成されている。これ
は制御弁体に作用する作動部材によって生ぜしめられる
渦動行程を小管によって吸収し、これを主弁体に伝えな
いことを意味する。更にこれは、任意の作動部材を使用
することを可能にする。本発明の別の利点は制御弁体に
よる圧力導管のシールが制御弁体の作動速度だけに関連
し、制御室の排気速度には関連しないことである。従っ
て圧力導管は作動後即座に遮°断され、この時点から圧
力媒体が流入することはなくなりかつ制御排気導管を介
して流出することが出来るようになる。これは池面に於
ては制御室の迅速な排気、延いては短い切換え時間を賓
らす。In the directional control valve improved by the present invention, the valve seat of the control valve body in the small pipe is constructed to be flexible. This means that the swirling stroke produced by the actuating member acting on the control valve body is absorbed by the small tube and is not transmitted to the main valve body. Furthermore, this makes it possible to use any actuating member. Another advantage of the invention is that the sealing of the pressure conduit by the control valve body is dependent only on the operating speed of the control valve body and not on the pumping speed of the control chamber. The pressure line is therefore immediately shut off after actuation, and from this point on no pressure medium can enter and can flow out via the controlled exhaust line. This allows for quick evacuation of the control room and therefore short changeover times in the pond.
次に図面について本発明を説明する。The invention will now be explained with reference to the drawings.
本発明による方向制御弁１１は一点鎖線で示された、略
円筒形の滑らかな孔として構成された切欠き１３を備え
たケーシング１２と、この切欠き１３内に押込まれかつ
そこに固定的に保持された弁座挿入体１４とを有してい
る。この弁座挿入体１４はスリーブとして構成されてお
りかつ弁ケーシング１２の軸方向の切欠き内に略遊びな
しに嵌合せしめられている。The directional control valve 11 according to the invention has a casing 12 with a cutout 13, shown in dash-dotted lines, which is designed as an approximately cylindrical smooth hole and which is pushed into the cutout 13 and is fixed therein. and a retained valve seat insert 14. The valve seat insert 14 is designed as a sleeve and is fitted into an axial recess in the valve housing 12 with virtually no play.
弁座挿入体１４は内側がら外側に向がって、すなわち作
動端部に対する圧力接続部から見て第１のリング１６と
スポーク輪状の部分１７と第２のリング１８と円板状の
蓋１９とを有している。これらの部材の内部にはこれに
対して同軸的に、主弁室２２に於ける主弁体２１と制御
弁室２４に於ける制御弁体２３と主弁室２２を制御弁室
２４から緊密に仕切るダイヤフラム２６とが配置されて
いる。弁座挿入体１４は更に軸方向の圧力開口２７と、
これに対して同心的な作業間１」２８と、半径方向の主
排気間（コ２９と、軸方向の制御排気開口３０とを有し
ている。これらの開口は弁ケーシング１２の対応する圧
力孔、作業孔、排気孔とこれに接続可能な導管とに接続
されている。これらの導管は圧力媒体源、ニュー７チツ
ク又はハイドロ式作業ユ＝ツｂ若しくは外気と接続され
ている。The valve seat insert 14 includes, from the inside out, i.e. viewed from the pressure connection to the working end, a first ring 16 , a spoked ring 17 , a second ring 18 and a disc-shaped lid 19 . It has Coaxially inside these members, the main valve body 21 in the main valve chamber 22, the control valve body 23 in the control valve chamber 24, and the main valve chamber 22 are tightly sealed from the control valve chamber 24. A diaphragm 26 is arranged to partition the area. The valve seat insert 14 further includes an axial pressure opening 27;
On the other hand, it has a concentric working gap 1'' 28, a radial main exhaust gap 29, and an axial control exhaust opening 30. The openings, working holes, exhaust holes and conduits connectable thereto are connected to a pressure medium source, a pressure medium source, a hydraulic or hydraulic working unit, or to the outside air.
軸方向の圧力開口２７は内側のリング１６の内側の端部
に配置されかつ部分的にリング１６内に位置ずろ主弁室
２２に開口している。このリング１６は弁ケーシング１
２における圧力孔と協働する端部の段部にＯリング３１
を備えており、これと反対側の、主弁室２２に面した端
面に、圧力開口２７を同心的に取囲＜、リング状の、円
錐状に外に向かって延びる第１の弁座面３２を備えてい
る。この弁座面３２には主弁体２１がシール面３３で圧
密に接触する。弁ケーシング１２に向いた、圧力開口２
γを同心的に取聞く、有利には円錐状のリング面には、
複数の均一に分配された孔が設けられている。これらの
孔は作業孔２８を形成しかつ同様に主弁室２２に開口し
ている。An axial pressure opening 27 is located at the inner end of the inner ring 16 and opens partially into the main valve chamber 22 offset within the ring 16 . This ring 16 is attached to the valve casing 1
An O-ring 31 is attached to the step at the end that cooperates with the pressure hole in 2.
and, on the opposite end face facing the main valve chamber 22, a ring-shaped, conically outwardly extending first valve seat surface surrounding the pressure opening 27 concentrically. It is equipped with 32. The main valve body 21 is in pressure-tight contact with this valve seat surface 32 at a sealing surface 33 . Pressure opening 2 facing valve casing 12
The preferably conical ring surface, which intersects γ concentrically,
A plurality of evenly distributed holes are provided. These holes form working holes 28 and likewise open into the main valve chamber 22 .
適当な弾性的なプラスチックから一体に構成されたスポ
ーク輪状の部分１γのタイヤ３６は両方のリング１６と
１８の間に締込まれかつ保持されている。タイヤ３６か
らは半径方向にスポーク３７が延びている。このスポー
ク３７はボス３８と一体であり、このボス３８は主弁体
２．１の前端３９のスリーブを形成しかつシール面３３
を有している。主弁体２１の前端３９とボス３８はボス
３８が主弁体２１の前方の端部を掴みかつ後方の範囲に
於てリング状の付加部で主弁体２１のリング溝に係合す
ることによって略形状接縛的に相互に結合されている。A tire 36 with a spoke ring-shaped portion 1γ, constructed in one piece from a suitable elastic plastic, is clamped and held between the two rings 16 and 18. Spokes 37 extend radially from the tire 36. This spoke 37 is integral with a boss 38 which forms a sleeve of the front end 39 of the main valve body 2.1 and which forms a sealing surface 33.
have. The front end 39 of the main valve body 21 and the boss 38 are such that the boss 38 grips the front end of the main valve body 21 and engages with the ring groove of the main valve body 21 with a ring-shaped additional part in the rear range. are connected to each other in a substantially shape-bound manner.
更にボス３８は、主弁体２１を掴む、円錐形のシール面
３３を備えた端面と反対側の端部に、第２のリング１８
の内側に突出する部分に於ける第２の弁座面４３と協働
する後方のシール面４２を有している。主弁室２２の内
部に配置されたボス３８は同様に軸方向の孔４４を有し
ている。Furthermore, the boss 38 has a second ring 18 at the end opposite to the end surface provided with the conical sealing surface 33 that grips the main valve body 21.
It has a rear sealing surface 42 which cooperates with a second valve seat surface 43 in the inwardly projecting portion of the valve. The boss 38 located inside the main valve chamber 22 likewise has an axial bore 44 .
この孔４４の直径は圧力開口２７の直径よりも小さいが
、しかし弁ケーゾング１２に於ける圧力開口２７若しく
は圧力孔と制御弁室２４との間の接続導管４７０１部分
を形成する主弁体２１における貫通孔４６の直径よりも
大きくなっている。この直径差に基いてボス３８若しく
は主弁体２１には圧力開口２７を通って流れてくる圧力
媒体に曝されるリング状の端面が生ぜしぬられる。The diameter of this bore 44 is smaller than the diameter of the pressure opening 27 but in the main valve body 21 forming a part of the connecting conduit 4701 between the pressure opening 27 in the valve case 12 or the pressure bore and the control valve chamber 24. It is larger than the diameter of the through hole 46. Due to this difference in diameter, the boss 38 or the main valve body 21 is provided with a ring-shaped end face which is exposed to the pressure medium flowing through the pressure opening 27.
第２のリング１８は中央範囲に周方向に分配された半径
方向の孔を備えている。これらの孔は主排気開口２９を
形成し、主弁体２１の位置に応じて主弁体室２２と接続
されるか又はこれから遮断される。第２のリング１８は
後端部に軸方向の切欠き４８を備えており、この切欠き
４８内にはダイヤフラム２６が配置されている。The second ring 18 is provided with circumferentially distributed radial holes in a central region. These holes form a main exhaust opening 29, which, depending on the position of the main valve body 21, is connected to or disconnected from the main valve body chamber 22. The second ring 18 has an axial notch 48 at its rear end, in which the diaphragm 26 is arranged.
このダイヤフラム２６は外リング４９で第２のリング部
材１８の切欠き４８内に位置し、主弁体２１を取巻き、
そこでリング溝５１Ｖｒｃ嵌合ぜしめられかつ形状接続
的に保持されている。適当な弾性的なプラスチックから
成り、主弁体２１の浮］ｎする懸垂な可能にするダイヤ
フラム２６は、外リング４９に隣接して薄いリング区域
５２を有し、主弁体２１の近くに内側に向いたリング状
の切欠き５３を有している。このリング状の切欠き５３
はダイヤフラム２６に良好な運動の可能性を与えるため
に役立つ。リング状の切欠き５３の範囲でダイヤフラム
２６は内側でス、リープ５４の端面に接している。この
スリーブ５４は主弁体２１と形状接続的に結合されてお
りかつこのスリーブ５４を介して主弁体２１が第２のリ
ング１８の後方の範囲の内部に案内されている。第２の
リング１８の後方の範囲ＶＣは軸方向の孔の形をした制
御排気開口３０を備えた蓋１９が当つけられている。蓋
１９の付加部５６は内側に向かって突出しておりかつ内
側からダイヤフラム２６の外リング４９に係合し、この
ダイヤフラム２６を軸方向に形状接続的に保持している
。更にこの付加部５６は主弁体２１が図示されていない
他方の終端位置にある場合にダイヤフラム２６が著しく
大きな面で付加部５６に接触ずろような形状を端面（Ｉ
ｌｌに有している。This diaphragm 26 is located in the notch 48 of the second ring member 18 with an outer ring 49, and surrounds the main valve body 21.
There, the ring groove 51Vrc is fitted and held in a form-fitting manner. A suspended enabling diaphragm 26 , made of a suitable resilient plastic, has a thin ring section 52 adjacent the outer ring 49 and an inner surface adjacent to the main valve body 21 . It has a ring-shaped notch 53 facing toward. This ring-shaped notch 53
serves to provide the diaphragm 26 with good movement possibilities. In the area of the ring-shaped notch 53, the diaphragm 26 is in contact with the end face of the sleeve 54 on the inside. This sleeve 54 is connected positively to the main valve body 21 and guides the main valve body 21 into the rear region of the second ring 18 via the sleeve 54 . The rear region VC of the second ring 18 is fitted with a lid 19 with a controlled exhaust opening 30 in the form of an axial hole. The extension 56 of the lid 19 projects inwardly and engages the outer ring 49 of the diaphragm 26 from the inside and holds this diaphragm 26 in an axially positive manner. Furthermore, this additional portion 56 has an end surface (I
I have it.
蓋１９とダイヤフラム２６との間には、制御弁室２４が
設けられている。蓋１９は更に制御排気孔３０と接続さ
れた拡大された円錐形の軸方向の切欠き５γを有してい
る。この切欠き５Ｔ内には半径方向のリプ５８が配置さ
れかつ固定されており、このリプ５８間に球の形をした
制御弁体２３が案内されている。この弁体２３は図示さ
れているように一方では制御排気開口３゜に接してこれ
をシールし、他方では制御弁室２４内に突入する小管６
１の端部に設けられた弁座５９に接触する。軸方向の孔
６２が主弁体２１の貫通孔４６と接続されかつ接続導管
４γの１部を形成する小管６１は、主弁体２１の貫通孔
４６内に突入している。小管６１は主弁体２１を貫く、
制御弁室２４内に突入する端部に鍔６３を有しており、
この鍔でリプ５Ｂの切欠きによって形成されたストッパ
６４に当接している。A control valve chamber 24 is provided between the lid 19 and the diaphragm 26. The lid 19 furthermore has an enlarged conical axial recess 5γ connected to the control exhaust hole 30. A radial lip 58 is arranged and fixed in this recess 5T, between which a spherical control valve body 23 is guided. This valve body 23 contacts and seals the control exhaust opening 3° on the one hand, as shown, and on the other hand a small pipe 6 which projects into the control valve chamber 24.
The valve seat 59 provided at the end of the valve 1 contacts the valve seat 59 provided at the end of the valve 1. A small tube 61 whose axial hole 62 is connected to the through hole 46 of the main valve body 21 and forms part of the connecting conduit 4γ projects into the through hole 46 of the main valve body 21 . The small pipe 61 penetrates the main valve body 21,
It has a flange 63 at the end that protrudes into the control valve chamber 24,
This collar abuts against a stopper 64 formed by a notch in the lip 5B.
図示された一方の終端位置に於ける小管６１の鍔６３か
ら主弁体２１の向き合った端面まての間隔は、主弁体２
１が一方の終端位置から他方の終端位置に動くときに主
弁体２１が移動する行程に所定の退勤行程を含めたもの
と少なくとも同じ大きさを有している。小管６１は内側
の端部で０リング６６と中間スリーブ６１とを介して予
め緊縮された押しばね６ＢＶｃ当っけられている。この
押しばね６８は貫通孔４６内のリング面に支えられ、一
方では小管６１が切換過程の前で他方の終端位置でスト
ッパ６４ｃ当ｇし、従って制御弁体２３の弁座５９を制
御弁体２３に対して所定の相対位置に保ち、他方では制
御弁体２３の弁座５９ｖｃ弾性を与え、他方の図示され
ていない終端位Ｗｖｃ切換える際に退勤行程を許容する
ように働く。小管６１の弁座５９と制御弁体２３のシー
ル面との間の軸方向の間隔は極めて小さく、例えば−一
×６０〜１００〕αχンｍｍ
にすることが出来る。従って方向制御弁を切換えるため
には極めて小さな行程しか必要でなく本発明の方向制御
弁は次のように働く二図面に於ては軸方向に往復運動す
る主弁体２１は、主弁体２１が内側のリング１６に当接
し、圧力開口２７と作業開口２Ｂとの接続を断ち、従っ
て作業開口２８が主排気開口２９と接続されている一方
の終端位置に位置している。更に圧力開口２７と接続さ
れている接続導管４７は制御弁室２４と接続されている
。従って一方゛では圧力媒体によって制御弁体２３が制
御排気開口３０に圧着され、これが閉じられ、他方では
制御弁室２４が圧力下におかれるようになる。The distance from the collar 63 of the small tube 61 to the opposite end surface of the main valve body 21 at one end position shown in the figure is
It has at least the same size as the stroke of the movement of the main valve body 21 when the main valve body 21 moves from one end position to the other end position, including a predetermined clock-out stroke. The small tube 61 is abutted at its inner end via an O-ring 66 and an intermediate sleeve 61 against a pre-stressed pressure spring 6BVc. This pressure spring 68 rests on a ring surface in the through-hole 46, and the small tube 61 on the one hand abuts the stop 64c in the other end position before the switching process, thus pushing the valve seat 59 of the control valve body 23 into the control valve body. The valve seat 59vc of the control valve body 23 is maintained at a predetermined relative position with respect to the control valve body 23, and on the other hand, the valve seat 59vc of the control valve body 23 is given elasticity, and the other end position Wvc (not shown) is operated to allow the exit stroke when switching to the other end position Wvc. The axial distance between the valve seat 59 of the small pipe 61 and the sealing surface of the control valve body 23 is extremely small, and can be, for example, -1 x 60 to 100] αχ in mm. Therefore, only a very small stroke is required to switch the directional control valve, and the directional control valve of the present invention works as follows. rests on the inner ring 16 and breaks the connection between the pressure opening 27 and the working opening 2B, so that the working opening 28 is located in one end position in connection with the main exhaust opening 29. Furthermore, a connecting line 47, which is connected to the pressure opening 27, is connected to the control valve chamber 24. Thus, on the one hand, the pressure medium presses the control valve body 23 into the control exhaust opening 30 and closes it, and on the other hand, the control valve chamber 24 is brought under pressure.
圧力媒体によって負荷されるダイヤフラム２６の制御弁
室２４に向いたリング面ば主弁体２１の圧力開口２１に
直ぐ向き合ったリング面よりも大きいので、主弁体２１
はこの一方の終端位置に保持される。制御弁体２３が一
点鎖線で示された作動ピン６９によって接続導管４７に
於ける圧力媒体の作用に抗して軸方向に内側に押される
と、制御弁体２３は一方では制御排気開口３０を開き、
他方ではその直後に、すなわぢ行程が極めて小さいため
に、小管６１の孔６２を閉じ、延いては制御弁室２４を
圧力開口２７から遮断する。これによって制御弁室２４
は制御排気開口３０から排気されるが、その際接続導管
４１を通って圧力媒体が供給されることはなくなる。次
いで作動ピン６９が更に軸方向に移動せしめられると、
すなわち退勤行程で移動すしめられると、小管６１は押
しばね６Ｂの作用に抗して移動せしめられろ。図示の実
施例では最大の退勤行程としては０．５ ｍｍが考慮さ
れている。制御弁室を排気することによってダイヤフラ
ム２６に作用する圧力も弱まり、従って主弁体２１は、
主弁体２１の圧力開口２γに面したリング面（Ｃ作用す
る圧力が制御弁室２４内にあってかつダイヤフラム２６
に作用する圧力よりも大きいと、軸方向に他方の終端位
置に移動せしめられる。制御弁室２４が完全に排気され
ると主弁体２１の移動も終了し、この後で主弁体２１は
後方のシール面４２でリング１８の第２の弁座面４３に
接触する。主弁体２１のこの行程運動は中央位置を越え
ると、他方の終端位置に急激に移動する予め緊縮された
スポーク輪状の部分１７によって付勢される。これと同
じ現象は反対方向の運動に於ても見られる。従つてこの
切換えは、制御弁室の排気が圧力媒体の流入を殆んど伴
うことなしに行なわれるので極めて迅速に実施される。Since the ring surface of the diaphragm 26 facing the control valve chamber 24 loaded by the pressure medium is larger than the ring surface directly facing the pressure opening 21 of the main valve body 21, the main valve body 21
is held at this one end position. When the control valve body 23 is pushed axially inwardly against the action of the pressure medium in the connecting conduit 47 by the actuating pin 69 shown in dash-dotted lines, the control valve body 23 opens the control exhaust opening 30 on the one hand. Open,
Immediately thereafter, on the other hand, because the stroke is extremely small, the bore 62 of the small tube 61 is closed and thus the control valve chamber 24 is isolated from the pressure opening 27 . As a result, the control valve chamber 24
is exhausted through the controlled exhaust opening 30, but no pressure medium is supplied through the connecting line 41. Then, when the actuation pin 69 is further moved in the axial direction,
That is, when the small tube 61 is moved during the leaving stroke, the small tube 61 is moved against the action of the push spring 6B. In the exemplary embodiment shown, a maximum withdrawal distance of 0.5 mm is considered. By evacuating the control valve chamber, the pressure acting on the diaphragm 26 also weakens, so that the main valve body 21
The ring surface (C) facing the pressure opening 2γ of the main valve body 21 is located within the control valve chamber 24 and the diaphragm 26
If the pressure is greater than the pressure acting on it, it will be moved axially to the other end position. When the control valve chamber 24 is completely evacuated, the movement of the main valve body 21 also ends, after which the main valve body 21 comes into contact with the second valve seat surface 43 of the ring 18 with its rear sealing surface 42 . This stroke movement of the main valve body 21 is acted upon by the prestressed spoke ring-shaped part 17, which, beyond the central position, moves abruptly into the other end position. The same phenomenon can be seen when moving in the opposite direction. This changeover therefore takes place very quickly, since the control valve chamber is evacuated with almost no pressure medium flowing in.
図示されていない他方の終端位置に於ては圧力開口２７
は主弁室２２を介して作業開口２８と接続されているの
に対して、主排気開口２９は主弁室２２から圧密に遮断
されている。これによって単数又は複数の図示されてい
ないハイドロ又はニュー７チツク式作業ユニットが運転
される。作動ピン６９が離されるか又はこの作動ピンが
出発位置に戻ると、制御弁体２３が小管６１に於ける孔
６１若しくは制御弁室２４における接続導管４７の開口
を開き、他方では制御排気間０３０を制御弁体２３に生
じる圧力媒体の作用下で閉鎖する。従って制御弁体２３
は自動的に制御排気開口３０を閉鎖する終端位置に押さ
れる。接続導管４７が開くことによって圧力媒体は再び
制御弁室２４内に流入し、ダイヤフラム２６に作用する
圧力が主弁体２１の圧力開口２７に向きあったリング面
に作用する圧力よりも大きいと、主弁体２１が一方の終
端位置に戻ることになる。この過程中小管６１は退勤行
程によって予め移動せしめられている場合ｆは、蓋１９
におけるストッパに当接する。一方の終端位置への戻し
切換えは小管６１における弁座と制御弁体２３との間に
所定の絞り個所が生じるばあいにも同様に迅速に行なわ
れる。In the other end position, not shown, the pressure opening 27
is connected to the working opening 28 via the main valve chamber 22, whereas the main exhaust opening 29 is sealed off from the main valve chamber 22 in a pressure-tight manner. As a result, one or more hydraulic or new seven-tick working units (not shown) are activated. When the actuating pin 69 is released or returns to its starting position, the control valve body 23 opens the opening of the bore 61 in the small pipe 61 or the connecting conduit 47 in the control valve chamber 24 and, on the other hand, opens the control vent 030. is closed under the action of a pressure medium occurring in the control valve body 23. Therefore, the control valve body 23
is automatically pushed to the end position which closes the control exhaust opening 30. Due to the opening of the connecting conduit 47, the pressure medium flows into the control valve chamber 24 again, and the pressure acting on the diaphragm 26 is greater than the pressure acting on the ring surface facing the pressure opening 27 of the main valve body 21. The main valve body 21 will return to one end position. In this process, if the small and medium pipes 61 have been moved in advance during the leaving process, the lid 19
abuts against the stopper at. Switching back to the one end position also occurs quickly if a predetermined throttling point occurs between the valve seat in the small tube 61 and the control valve body 23.
図面は本発明の方向制御弁の１実施例を示す縦断面図で
ある。The drawing is a longitudinal sectional view showing one embodiment of the directional control valve of the present invention.
Claims (1)
体が軸方向に摺動可能に支承されかつ少なくとも１つの
圧力導管と主弁体によって遮断可能な作業導管とが開口
している主弁室と、この主弁室の軸方向の延長に配置さ
れかつこの主弁室から、一方では弁ケーシングに固定的
に締込まれかつ他方では主弁体と結合された軸方向に可
動なダイヤフラムによって仕切られた制御弁室と、一方
の終端位置では圧力導管と接続された接続導管と制御弁
室とを接続し、他方の終端位置では制御弁室と制御排気
導管とを接続する作動可能な制御弁体とを有し、制御弁
室がも負荷されるダイヤフラム並びに主弁体の面が、主
弁体の他端部に於ける反対方向に負荷される面よりも大
きく、接続導管が主弁体の中央を軸方向に圧力導管と向
き合った端面かも延びる貫通孔として構成されており、
制御弁体が制御弁室の中央にかつ貫通孔の制御弁室にお
ける開口と向き合って配置されている形式のものに於て
、主弁体（２１）の貫通孔（４６）内に小管（６１）が
主弁体（２１）に対して相対的に移動可能に配置されて
おり、この小管（６１）が一方の端部に制御弁体（２３
）の弁座面（５９）を有し、この小管（６１）が制御弁
体（２３）に向かっては規定された終端位置を占めるの
に対して、反対方向には弾性的に保持されていることを
特徴とする方向制御弁Directional control valve, in which a main valve body controlled by a pressure medium is supported slidably in the axial direction, and at least one pressure conduit and a working conduit which can be shut off by the main valve body are open. chamber and an axially movable diaphragm arranged in the axial extension of this main valve chamber and from this main valve chamber, which is fixedly clamped on the valve casing on the one hand and connected to the main valve body on the other hand. a partitioned control valve chamber and an operable control connecting the control valve chamber with a connecting conduit connected to a pressure conduit in one end position and with a control exhaust conduit in the other end position; The surface of the diaphragm and the main valve body on which the control valve chamber is also loaded is larger than the surface of the other end of the main valve body that is loaded in the opposite direction, and the connecting conduit is connected to the main valve body. It is configured as a through hole extending through the center of the body in the axial direction and also through the end face facing the pressure conduit.
In the type in which the control valve body is disposed in the center of the control valve chamber and facing the opening in the control valve chamber of the through hole, a small pipe (61) is installed in the through hole (46) of the main valve body (21). ) is arranged to be movable relative to the main valve body (21), and this small pipe (61) has a control valve body (23) at one end.
) with a valve seat surface (59) of which the small tube (61) assumes a defined end position towards the control valve body (23), while being held elastically in the opposite direction. A directional control valve characterized by
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2658515A DE2658515C2 (en) | 1976-12-23 | 1976-12-23 | Multi-way valve |
| DE2658515.9 | 1976-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6078173A true JPS6078173A (en) | 1985-05-02 |
Family
ID=5996467
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15549677A Pending JPS5380022A (en) | 1976-12-23 | 1977-12-23 | Ways controllig valve |
| JP59179508A Pending JPS6078173A (en) | 1976-12-23 | 1984-08-30 | Direction control valve |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15549677A Pending JPS5380022A (en) | 1976-12-23 | 1977-12-23 | Ways controllig valve |
Country Status (10)
| Country | Link |
|---|---|
| JP (2) | JPS5380022A (en) |
| BR (1) | BR7708586A (en) |
| CH (1) | CH606879A5 (en) |
| DE (1) | DE2658515C2 (en) |
| ES (1) | ES465329A1 (en) |
| FR (1) | FR2375519A2 (en) |
| GB (1) | GB1591953A (en) |
| IN (1) | IN149926B (en) |
| IT (1) | IT1089209B (en) |
| SE (1) | SE432655B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2743829C2 (en) * | 1977-09-29 | 1984-03-29 | Festo-Maschinenfabrik Gottlieb Stoll, 7300 Esslingen | Multi-way valve |
| JPH01299372A (en) * | 1988-05-24 | 1989-12-04 | Smc Corp | Poppet type direction change-over valve |
| CN109296816B (en) * | 2018-11-28 | 2023-12-01 | 陕西航天泵阀科技集团有限公司 | Mechanical switching dispensing device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4978234A (en) * | 1972-12-04 | 1974-07-27 | ||
| JPS5073029A (en) * | 1973-11-01 | 1975-06-17 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1154703A (en) * | 1965-07-12 | 1969-06-11 | Maxam Power Ltd | Improvements relating to Pneumatic Relay Valves. |
| DE1675550C3 (en) * | 1968-03-09 | 1974-02-21 | Westinghouse Bremsen- U. Apparatebau Gmbh, 3000 Hannover | Pressure regulator |
| FR2051989A5 (en) * | 1969-07-03 | 1971-04-09 | Gen Gas Light Cy | |
| US3768515A (en) * | 1972-02-09 | 1973-10-30 | Pneumatic Scale Corp | Pneumatic relay valve for filling apparatus |
| DE2431135C3 (en) * | 1974-06-28 | 1981-06-25 | Festo-Maschinenfabrik Gottlieb Stoll, 7300 Esslingen | Multi-way valve |
-
1976
- 1976-12-23 DE DE2658515A patent/DE2658515C2/en not_active Expired
-
1977
- 1977-12-02 CH CH1474277A patent/CH606879A5/xx not_active IP Right Cessation
- 1977-12-20 FR FR7739378A patent/FR2375519A2/en active Granted
- 1977-12-22 BR BR7708586A patent/BR7708586A/en unknown
- 1977-12-22 ES ES465329A patent/ES465329A1/en not_active Expired
- 1977-12-22 GB GB53418/77A patent/GB1591953A/en not_active Expired
- 1977-12-22 IT IT31134/77A patent/IT1089209B/en active
- 1977-12-22 SE SE7714638A patent/SE432655B/en unknown
- 1977-12-23 JP JP15549677A patent/JPS5380022A/en active Pending
-
1978
- 1978-05-12 IN IN516/CAL/78A patent/IN149926B/en unknown
-
1984
- 1984-08-30 JP JP59179508A patent/JPS6078173A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4978234A (en) * | 1972-12-04 | 1974-07-27 | ||
| JPS5073029A (en) * | 1973-11-01 | 1975-06-17 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2658515C2 (en) | 1983-12-08 |
| ES465329A1 (en) | 1978-09-16 |
| FR2375519A2 (en) | 1978-07-21 |
| BR7708586A (en) | 1978-08-22 |
| FR2375519B2 (en) | 1982-05-14 |
| IN149926B (en) | 1982-06-05 |
| JPS5380022A (en) | 1978-07-15 |
| DE2658515A1 (en) | 1978-06-29 |
| GB1591953A (en) | 1981-07-01 |
| SE432655B (en) | 1984-04-09 |
| IT1089209B (en) | 1985-06-18 |
| CH606879A5 (en) | 1978-11-15 |
| SE7714638L (en) | 1978-06-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4579145A (en) | Pressure control device | |
| GB1369181A (en) | Tandem spring and serivce brace actuator | |
| US4022112A (en) | Flow through cap for attenuating any noise caused by air flow in a pneumatic servomotor | |
| EP0487571B1 (en) | Key member for retaining a control valve in a hub | |
| GB2398112A (en) | Annular valve | |
| US4572055A (en) | Vacuum power brake booster | |
| JPH0893955A (en) | Opening and closing solenoid valve | |
| JPH02190687A (en) | Pilot-controlled direction change valve | |
| US4456218A (en) | Fluid control valve | |
| JPH05204463A (en) | Improved flow controller | |
| JPS6078173A (en) | Direction control valve | |
| KR970001506B1 (en) | Booster | |
| US5033267A (en) | Pivotably-mounted master cylinder and pedal lever arrangement | |
| KR910012556A (en) | valve | |
| TW345552B (en) | Pneumatic brake booster | |
| US4682756A (en) | Hydraulically operated self-closing two-way seat-type valve | |
| US3606494A (en) | Multi-cycle control valve assembly | |
| JPS5931496Y2 (en) | filter assembly | |
| JPH03139464A (en) | Power booster | |
| CA2020108A1 (en) | Plunger for a control valve of a servomotor | |
| US2805647A (en) | Booster brake mechanism | |
| US4535679A (en) | Control valve for a brake booster | |
| US3788592A (en) | Wheel slip control apparatus having quick closing valves | |
| JP3526138B2 (en) | Brake equipment | |
| JP3408637B2 (en) | Poppet type directional valve |