JPS5824677A - Device for automatically opening and closing valve - Google Patents
Device for automatically opening and closing valveInfo
- Publication number
- JPS5824677A JPS5824677A JP12229781A JP12229781A JPS5824677A JP S5824677 A JPS5824677 A JP S5824677A JP 12229781 A JP12229781 A JP 12229781A JP 12229781 A JP12229781 A JP 12229781A JP S5824677 A JPS5824677 A JP S5824677A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- screw shaft
- gear
- motor
- brake
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/16—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together
- F16K3/18—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the closure members
- F16K3/188—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the closure members by means of hydraulic forces
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はバルブ自動開閉装置に関し、より詳しくは弁体
拡縮型バルブに特に適したパルプ自動開閉装置に関する
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic valve opening/closing device, and more particularly to an automatic pulp opening/closing device particularly suitable for a valve body expanding/contracting type valve.
従来弁体拡縮型バルブは化学工場、パルブ工場、金属製
錬工場等において、酸、アルカリや泥状物質を含む粘稠
性液体の遮断に用いられる事が多いが、操作が複雑な為
としばしば腐食環境で用いられるために自動化が困難と
されて来た。Conventional valve body expansion type valves are often used in chemical factories, pulp factories, metal smelting factories, etc. to shut off viscous liquids containing acids, alkalis, and muddy substances, but they are often used because they are complicated to operate. Automation has been considered difficult because it is used in a corrosive environment.
ここに弁体拡縮型バルブとは、ダブルディスク仕切弁の
一種であって互いに平行な二つの弁体の組合せからなり
、回転ナツトを回転して弁体の昇降を行い、ネジ軸の回
転力によって弁体な押し広げ、入口、及び出口の弁座面
に面圧を与える構造の仕切弁である。The valve body expansion type valve is a type of double-disc gate valve, and consists of two valve bodies that are parallel to each other.The valve body is raised and lowered by rotating a rotating nut, and the valve body is moved up and down by the rotational force of a screw shaft. This is a gate valve with a structure that applies surface pressure to the valve seat surfaces of the inlet and outlet by pushing the valve body apart.
従来前記バルブの開閉操作を行うには人手によって回転
ナツトを回転して弁体を下降し、ついでネジ軸頭とナツ
トの両方を同時に回転出来る特殊なスパナを使用して弁
体な押し広げていた。Conventionally, to open and close the valve, the valve body was lowered by manually rotating a rotary nut, and then a special wrench that could rotate both the screw shaft head and the nut at the same time was used to push the valve body apart. .
このような複雑な手動操作を劣悪な環境下で行なうこと
は作業者にとって非常に苦痛の伴う作業であり、またそ
のために開閉に時間を要ししがも開閉状態が不確実にな
り易いという問題点があった。Performing such complex manual operations under poor conditions is extremely painful for the worker, and the problem is that it takes time to open and close, and the opening/closing status is likely to be uncertain. There was a point.
そこで本発明者は種々実験研究の結果、ネジ軸頭および
回転ナツトのボス部に相対向して突起を付設することに
より下死点においてネジ軸頭とナツトを同期回転せしめ
得ることを見出し本発明を完成した。Therefore, as a result of various experimental studies, the present inventor found that by attaching protrusions facing each other to the screw shaft head and the boss portion of the rotary nut, the screw shaft head and the nut can be rotated synchronously at the bottom dead center, and the present invention is presented. completed.
本発明の目的は弁体拡縮型バルブの自動開閉装置を提供
するにある。An object of the present invention is to provide an automatic opening/closing device for a valve body expansion/contraction type valve.
本発明により、ボス上面に突起Ａを有する歯車付回転ナ
ツトと、前記歯車付回転ナツトを駆動するモータＣと、
前記歯車付回転ナツトに螺合する、頭上面に突起Ｂを有
するネジ軸と、前記ネジ軸にスプラインを介して嵌合す
る長袖ボス型歯車と、前記長軸ボス型歯車を駆動するブ
レーキ付モータＤと、前記歯車付回転ナツトと長袖ボス
型歯車を別箇に枢着し、かつ前記モータＣおよびブレー
キ付モータＤを固着するフレームとでなり、これらが、
ネジ軸が上昇もしくは下降する間はネジ軸は回転せず、
下死点において前記突起Ａおよび突起Ｂが係合したとき
にのみネジ軸が回転する関係で配置されている事を特徴
とするバルブ自動開閉装置が提供される。According to the present invention, a rotating nut with a gear having a protrusion A on the upper surface of the boss, a motor C that drives the rotating nut with a gear,
A screw shaft having a protrusion B on the overhead surface that is screwed into the rotary nut with a gear, a long-sleeve boss type gear that fits onto the screw shaft via a spline, and a motor with a brake that drives the long-shaft boss type gear. D, and a frame to which the rotary nut with gear and the long-sleeved boss type gear are separately pivoted, and to which the motor C and the motor D with brake are fixed, and these are:
While the screw shaft is rising or falling, the screw shaft does not rotate.
There is provided an automatic valve opening/closing device characterized in that the screw shaft is arranged in such a relationship that the screw shaft rotates only when the projection A and the projection B are engaged at the bottom dead center.
以下に実施例を用いて本発明の詳細な説明する。The present invention will be described in detail below using examples.
第１図は本発明実施例を示す断面正面図、第２図は第１
図のト」′に沿った断面図、第３図は突起の係合状態を
示すネジ軸頭と回転ナツトの要部側面図である。Figure 1 is a cross-sectional front view showing an embodiment of the present invention, and Figure 2 is a cross-sectional front view showing an embodiment of the present invention.
FIG. 3 is a cross-sectional view taken along line G' in the figure, and FIG. 3 is a side view of the main parts of the screw shaft head and the rotating nut, showing the engaged state of the projections.
１１図ニオイテ、 ７ Ｌ／−Ａ １１ Ａ、 １１
Ｂバ一体フレームの各部分であり、先づフレームＩＩ
Ｂの竪穴にスリーブ１２が回動可能に嵌合されている。Figure 11 Nioite, 7 L/-A 11 A, 11
B is each part of the integrated frame, first is frame II.
A sleeve 12 is rotatably fitted into the vertical hole B.
スリーブ１２の内壁には雌ネジが切ってｉす、ネジ軸４
の雄ネジと螺合している。A female thread is cut on the inner wall of the sleeve 12, and the threaded shaft 4
It is screwed together with the male screw.
またスリーブ１２の上端は外径に別途ネジ切りがしてあ
ってダブルナラ）１４．１４によってフランジを構成し
ており、スリーブ１２に回転ナツト８をキー１３を介し
て固着している。従ってスリーブ１２に失するスラスト
はスリーブ１２のフランジ上面１２Ａ及び回転ナツト８
の下面８Ａで以てフレームＩＩＢにより支承される。な
お回転ナツト８はその上面に突起１６を有している。第
２図に示すように回転ナツト８は遊隙を有する遊動スプ
ラインでなる慣性衝撃起動装置を介して歯車７と嵌合し
ている。そして歯車７はフレーム１１Ａに固着されたギ
ヤゲージング１０に更に固着されたエアモータ５の駆動
軸のビニオン６によって正逆回転駆動される。Further, the upper end of the sleeve 12 is separately threaded on the outside diameter and constitutes a flange with a double neck (14, 14), and the rotating nut 8 is fixed to the sleeve 12 via a key 13. Therefore, the thrust lost to the sleeve 12 is due to the flange upper surface 12A of the sleeve 12 and the rotating nut 8.
The lower surface 8A of the frame IIB is supported by the frame IIB. Note that the rotating nut 8 has a protrusion 16 on its upper surface. As shown in FIG. 2, the rotary nut 8 is engaged with the gear 7 via an inertial shock starter consisting of a floating spline with play. The gear 7 is driven to rotate in forward and reverse directions by a pinion 6 of a drive shaft of an air motor 5, which is further fixed to a gear gauge 10 fixed to the frame 11A.
またネジ軸４の頭４Ａ下面には突起１５が付設されてい
る。そして第３図に示すようにネジ軸頭４Ａは、回転ナ
ツト８と同様に遊動スプラインでなる慣性衝撃起動装置
を介して長軸ボス型歯車３と嵌合している。長軸ボス型
歯車３は、フレーム１°Ｉ人は固着されたギヤゲージン
グ９に更に固着されたブレーキ付エアモータ１の駆動軸
のビニオン２によって正逆回転駆動または制動されるよ
うになっている。Further, a projection 15 is attached to the lower surface of the head 4A of the screw shaft 4. As shown in FIG. 3, the screw shaft head 4A is fitted with the long-axis boss-type gear 3 via an inertial shock starter made of a floating spline, similar to the rotary nut 8. The long axis boss type gear 3 is driven to rotate in forward and reverse directions or is braked by a pinion 2 of a drive shaft of an air motor 1 with a brake, which is further fixed to a gear gauging 9 fixed to the frame.
そこでネジ軸頭４人を第１図の開始位置から、ブレーキ
付エアモータ１は停止したままで、エアモータ５のみを
駆動し、従って回転ナツト８のみを回転させる事により
、下降させると突起１５゜１６の相対関係は一般にＩＪ
３図（＆）の如くなり、突起１５は突起１６に接近する
。そこでなおも回転ナツト８が回転すると突起１６は突
起１５に係合し、第３図山）の如くなる。Therefore, when the four screw shaft heads are lowered from the starting position shown in Fig. 1 by driving only the air motor 5 while the air motor 1 with brake is stopped, and therefore rotating only the rotating nut 8, the protrusion 15° 16 The relative relationship between is generally IJ
As shown in FIG. 3 (&), the protrusion 15 approaches the protrusion 16. When the rotating nut 8 is still rotated, the protrusion 16 engages with the protrusion 15, as shown in FIG.
ここに第４図、第６図、第７図は本発明実施例が閉弁す
る際の作動図であり、第８図、第９図は本発明実施例が
開弁する場合の作動図である。Here, Figures 4, 6, and 7 are operational diagrams when the embodiment of the present invention closes the valve, and Figures 8 and 9 are operational diagrams when the embodiment of the present invention opens the valve. be.
なお１３５図は！Ｊ４図のｖ−ｖ’断面図である。In addition, figure 135 is! It is a v-v' sectional view of figure J4.
すなわち第４図が作動開始時の状態であって、エアモー
タ５のみが回転して回転ナツト８を駆動する事によ６）
、ネジ軸４は回転しないまま降下し始める。この開始時
点において、第２図に示すように歯車７の内径には軸対
称に１対の凹部７Ｗ。In other words, Fig. 4 shows the state at the start of operation, and only the air motor 5 rotates to drive the rotating nut 8 (6).
, the screw shaft 4 begins to descend without rotating. At this starting point, as shown in FIG. 2, a pair of recesses 7W are formed axially symmetrically on the inner diameter of the gear 7.
７Ｗがあり、回転ナツト８の１対の凸部８Ｔ、８Ｔとの
間に遊隙が設けられているので、歯車７はその分だけ何
分の１回転かを空転した上で回転ナツトに衝撃的に係合
する。しかも一般に停止する時は慣性によって必らず遊
隙が生じるのである。7W, and a play gap is provided between the pair of protrusions 8T and 8T of the rotating nut 8, so the gear 7 idles a fraction of a rotation by that amount and then impacts the rotating nut. to engage. Furthermore, when the vehicle stops, there is always some play due to inertia.
従ってこの遊動スプラインは慣性衡撃起動装置として作
用し、比較的小型のエアモータで、粘脩性液体によって
固着されやすいバルブを容易に起動することが出来る。The floating spline therefore acts as an inertia-balance actuator, allowing a relatively small air motor to easily actuate valves that are prone to becoming stuck in viscous liquids.
そして第５図の如くネジ軸４が下死点に達すると前述の
とおり突起１６と突起１５は係合する。この時、リミッ
トバルブもしくはリミットスイッチ（図示せず）が働ら
いてブレーキ付エアモータ１のクラッチＩＣへの圧縮空
気の供給が停止されて長袖ボス型歯車３は制動を解かれ
、ネジ軸頭４Ａは回転ナツト８及び歯車７と共に回転し
始める。When the screw shaft 4 reaches the bottom dead center as shown in FIG. 5, the projections 16 and 15 engage as described above. At this time, the limit valve or limit switch (not shown) operates to stop the supply of compressed air to the clutch IC of the air motor with brake 1, and the long-sleeved boss type gear 3 is released from braking, and the screw shaft head 4A is It begins to rotate together with the rotating nut 8 and gear 7.
そこでネジ軸４は最早や下降する事なく回転し、従って
弁箱２４内に下達した弁体支持部内において、前記ネジ
軸下端に固着されたウオーム２３Ａが回転して一対のウ
オームホイール２３Ｂ、２３Ｂを回転せしめ、更に前記
ウオームホイール２３Ｂ、２３Ｂに螺着された弁体ネジ
軸２３Ｃ，２３Ｃを水平方向に押し出し、弁体２３，２
３を弁座２４８．２４８に夫々押圧し、バルブを閉じる
（第５図、！Ｊ６図及び第７図参照）。Thereupon, the screw shaft 4 rotates without descending any longer, and the worm 23A fixed to the lower end of the screw shaft rotates within the valve body support that has descended into the valve body 24, causing the pair of worm wheels 23B, 23B to rotate. The valve body screw shafts 23C, 23C screwed onto the worm wheels 23B, 23B are pushed out in the horizontal direction, and the valve bodies 23, 2 are rotated.
3 onto the valve seats 248 and 248, respectively, to close the valves (see Figures 5, !J6 and 7).
次にバルブを開く場合の本発明装置の作動状況を説明す
る。Next, the operating situation of the device of the present invention when opening the valve will be explained.
この場合、先づブレーキ付エアモータ１に対して圧縮空
気が供給され、同時にブレーキが解放され、クラッチＩ
Ｃが繋がれるので長軸ボス型歯車軸頭４人との間に設け
られてあり、従って数分の一回転の空転の後、長軸ボス
型歯車３はネジ軸頭４Ａと衝撃的に係合し、駆動力（ト
ルク）を伝える。In this case, compressed air is first supplied to the air motor 1 with a brake, and at the same time the brake is released and the clutch I
Since C is connected, it is provided between the four long shaft boss type gear shaft heads, and therefore, after idling for a fraction of a revolution, the long shaft boss type gear 3 is impulsively engaged with the screw shaft head 4A. together to transmit driving force (torque).
そしてなおこの時点でネジ軸頭の突起１５と回転ナツト
の突起１６とは係合した状態にあるので長軸ボス型歯車
３に加えられた回転力はネジ軸頭よ幡）回転ナツト８に
伝えられ、回転ナツト８はバルブを閉じる時と反対方向
に回転する。なおこの時エアモータ５への圧縮空気の供
給は断たれており、またエアモータ５にｈ属するクラッ
チも切れて歯車７はブレーキ付エアモータ１により従動
する。At this point, the projection 15 on the screw shaft head and the projection 16 on the rotating nut are in an engaged state, so the rotational force applied to the long shaft boss type gear 3 is transmitted to the screw shaft head and the rotating nut 8. The rotating nut 8 rotates in the opposite direction to when closing the valve. At this time, the supply of compressed air to the air motor 5 is cut off, and the clutch belonging to the air motor 5 is also disengaged, so that the gear 7 is driven by the air motor 1 with a brake.
従って弁体２３，２３は第９図の如く収縮し、バルブは
開かれる。この間においてネジ軸４は上昇しない。Therefore, the valve bodies 23, 23 are contracted as shown in FIG. 9, and the valve is opened. During this time, the screw shaft 4 does not rise.
ついで弁体収縮が終了すると９ミツトバルブもしくはリ
ミットスイッチ（図示せず）が作動してブレーキ付エア
モータ１への圧縮空気の供給が停止され、そのクラップ
は接続されたままでブレーキ付エアモータ１は停止しか
つ制動される。Then, when the valve body has finished contracting, a 9-mit valve or limit switch (not shown) is activated to stop the supply of compressed air to the air motor 1 with a brake, and the air motor 1 with a brake stops while the clamp remains connected. Braked.
従って長袖ボス型歯車３は停止状態となる。つぎに僅か
の遅れをもってエアモータ５に圧縮空気が供給され、か
つそのクラッチは接続して歯車７はエアモータ５によっ
て逆転され始める。そして回転ナツト８が、約１回転す
ると前記突起１５゜１６は分離され、回転ナツト８のみ
が継続して逆転する。従ってネジ軸４は回転することな
く上昇し、同時にネジ軸下端に固着された弁体支持部も
上昇し、バルブの入口２１．出口２２間の抵抗を減する
。この状態すなわちネジ軸頭が上死点に達した時リミッ
トバルブないしリミットスイッチ（図示せず）が作用し
てエアモータ５は停止する。Therefore, the long-sleeved boss type gear 3 comes to a stopped state. Compressed air is then supplied to the air motor 5 with a slight delay, and its clutch is engaged and the gear 7 begins to be reversed by the air motor 5. When the rotating nut 8 rotates about one revolution, the protrusions 15 and 16 are separated, and only the rotating nut 8 continues to rotate in reverse. Therefore, the screw shaft 4 rises without rotating, and at the same time, the valve body support fixed to the lower end of the screw shaft also rises, and the valve inlet 21. Reduces resistance between outlets 22. In this state, that is, when the screw shaft head reaches the top dead center, a limit valve or a limit switch (not shown) is activated to stop the air motor 5.
以上が本発明実施例の作動であるが、前述のブレーキ付
エアモータ１の構造は、本実施例では第１０図にその一
部断面正面図として示すとおりである。The above is the operation of the embodiment of the present invention. The structure of the above-mentioned air motor 1 with a brake is as shown in FIG. 10 as a partially sectional front view in this embodiment.
すなわち公知のベーン型エアモータ３１の回転軸上部に
コーン型ブレーキ３０を備え、かつ下部には圧縮空気駆
動部３３で軸方向に駆動されてそ一夕回転軸と断続する
クラッチ３２を備える。しかもクラッチの出力側はビニ
オンを兼ね、それは前記長軸ボス型歯車３と係合してい
る。That is, a known vane-type air motor 31 is provided with a cone-type brake 30 at the upper part of the rotating shaft, and a clutch 32 at the lower part thereof, which is driven in the axial direction by a compressed air drive section 33 and is connected to and connected to the rotating shaft throughout the day. Furthermore, the output side of the clutch also serves as a pinion, which engages with the long shaft boss type gear 3.
またエアモータ５の方は第１０図のブレーキ付エアモー
タよりコーン型ブレーキを省略しただけのものである。The air motor 5 is different from the air motor with brake shown in FIG. 10, except that the cone brake is omitted.
なお上記エアモータを電気モータや油圧モータ等によっ
て置換出来ることは云うまでもない。It goes without saying that the air motor can be replaced by an electric motor, a hydraulic motor, or the like.
以上詳述した本発明装置を実施する事により前記すべて
の目的が達成され、次の効果が得られる。By implementing the apparatus of the present invention as detailed above, all of the above objects can be achieved and the following effects can be obtained.
すなわち （１） 弁体拡縮型バルブを自動化出来る。i.e. (1) Valve body expansion and contraction type valves can be automated.
（２安全性が向上する。(2. Safety is improved.
（３） 作動が確実となる。(3) Operation becomes reliable.
第１図は本発明実施例を示す断面正面図、第２図は第１
図の夏−冒′に沿った断面図、第３図は突起の保合状態
を示すネジ軸頭と回転ナツトの要部断面図、第４図、第
６図、第７図は本発明実施例が閉弁する際の各工程の作
動図、第５因は第４図のｖ−ｖ’断面図、＄８図、第９
図は本発明実施例が開弁する場合の各工程の作動図、Ｉ
Ｊｔｏ図はブレーキ付エアモータの一部断面正面図であ
る。
１・・・・・ブレーキ付エアモータ、 ２・・・・・・
ピニオン、３・・・・・・長軸ボス型歯車、 ４
・・・・・・ネジ軸、５・・・・・・エアモータ、
６・・・・・・ピニオン、７・・・・・・歯
車、 ８・・・・・・回転ナツト、
９・・・・・・ギヤケーシング、 １０・・・・
・・ケーシング、１１・・・・・・フレーム、
１２・・・・・・スリーブ、１３・・・・・・
キー、 １４・・・・・・ダブルナツ
ト、１５・・・・・・突起、 １６・
・・・・・突起、２１・・・・・・バルブの入口、２２
・・・・・・バルブの出口、２３・・・・・・弁Ｌ
３０・・・・・・コーン型ブレーキ、
３１・・・・・・ベーン型エアモータ、３２・・・用ク
ラッチ、３３・・・・・・クラッチ駆動部。
特許出願人 鋼鈑工業株式会社
才２図
第３図
（（１）
（ｂ）Figure 1 is a cross-sectional front view showing an embodiment of the present invention, and Figure 2 is a cross-sectional front view showing an embodiment of the present invention.
3 is a cross-sectional view of the main parts of the screw shaft head and rotating nut showing the state in which the protrusions are engaged, and FIGS. 4, 6, and 7 are cross-sectional views taken according to the invention The example is the operation diagram of each process when the valve closes, and the fifth factor is the v-v' sectional view of Figure 4, Figure $8, and Figure 9.
The figure is an operational diagram of each process when the embodiment of the present invention opens the valve, I
The Jto diagram is a partially sectional front view of an air motor with a brake. 1... Air motor with brake, 2...
Pinion, 3... Long shaft boss type gear, 4
...Screw shaft, 5...Air motor,
6...pinion, 7...gear, 8...rotating nut,
9... Gear casing, 10...
...Casing, 11...Frame,
12...Sleeve, 13...
Key, 14...Double nut, 15...Protrusion, 16.
...Protrusion, 21 ...Valve inlet, 22
...Valve outlet, 23...Valve L
30... Cone type brake,
31... Vane type air motor, 32... Clutch, 33... Clutch drive unit. Patent applicant: Kohan Kogyo Co., Ltd. Figure 2 Figure 3 ((1) (b)
Claims (1)
前記歯車付回転ナツトを駆動するモータＣと、前記歯車
付回転ナツトに螺合する、願下面に突起Ｂを有するネジ
軸と、前記ネジ軸にスプラインを介して嵌合する長軸ボ
ス型歯車と、前記長軸ボス型歯車を駆動するブレーキ付
モータＤと、前記細車付回転ナツトと長軸ボス型歯車を
別箇に枢着しかつ前記モータＣおよびブレーキ付モータ
Ｄを固着するフレームとでなり、これらが、ネジ軸が上
昇もしくは下降する間は該ネジ軸は回転せず、下死点に
おいて前記突起Ａおよび突起Ｂが係合したときにのみネ
ジ軸が回転す◆関係で配置されている事を特徴とするバ
ルブ自動開閉装置。 （２１前記モータＣおよびブレーキ付モータＤがいづれ
も減速機付ヱアモータである特許請求の範囲第１項記載
のパルプ自動開閉゛装置。[Claims] 0) A rotating nut with a gear having a projection A on the upper surface of the boss;
A motor C that drives the rotary nut with a gear; a screw shaft having a protrusion B on the lower surface thereof that is screwed into the rotary nut with a gear; and a long-axis boss-type gear that is fitted with the screw shaft via a spline. , a motor D with a brake that drives the long shaft boss type gear, and a frame that separately pivots the rotary nut with a thin wheel and the long shaft boss type gear and fixes the motor C and the motor D with a brake. These are arranged in such a way that the screw shaft does not rotate while the screw shaft is ascending or descending, and the screw shaft rotates only when the projections A and B engage at the bottom dead center. An automatic valve opening/closing device characterized by: (21) The automatic pulp opening/closing device according to claim 1, wherein both the motor C and the motor D with a brake are motors with reduction gears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12229781A JPS5824677A (en) | 1981-08-03 | 1981-08-03 | Device for automatically opening and closing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12229781A JPS5824677A (en) | 1981-08-03 | 1981-08-03 | Device for automatically opening and closing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5824677A true JPS5824677A (en) | 1983-02-14 |
Family
ID=14832464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12229781A Pending JPS5824677A (en) | 1981-08-03 | 1981-08-03 | Device for automatically opening and closing valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5824677A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61109989A (en) * | 1984-10-31 | 1986-05-28 | 臼井国際産業株式会社 | Concentrated piping and concentrating arranging fixing methdo thereof |
| WO2012017476A1 (en) * | 2010-08-03 | 2012-02-09 | 三菱電機株式会社 | Electrically-controlled actuator, and turbo wastegate actuator |
| EP3374677A4 (en) * | 2015-11-12 | 2019-07-03 | Life Assistant Ltd. | Leading thread valve |
-
1981
- 1981-08-03 JP JP12229781A patent/JPS5824677A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61109989A (en) * | 1984-10-31 | 1986-05-28 | 臼井国際産業株式会社 | Concentrated piping and concentrating arranging fixing methdo thereof |
| JPH0256555B2 (en) * | 1984-10-31 | 1990-11-30 | Usui Kokusai Sangyo Kk | |
| WO2012017476A1 (en) * | 2010-08-03 | 2012-02-09 | 三菱電機株式会社 | Electrically-controlled actuator, and turbo wastegate actuator |
| JP5449559B2 (en) * | 2010-08-03 | 2014-03-19 | 三菱電機株式会社 | Electric control actuator and turbo wastegate actuator |
| EP3374677A4 (en) * | 2015-11-12 | 2019-07-03 | Life Assistant Ltd. | Leading thread valve |
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