JPS58170985A - Reciprocative valve actuator - Google Patents
Reciprocative valve actuatorInfo
- Publication number
- JPS58170985A JPS58170985A JP5469982A JP5469982A JPS58170985A JP S58170985 A JPS58170985 A JP S58170985A JP 5469982 A JP5469982 A JP 5469982A JP 5469982 A JP5469982 A JP 5469982A JP S58170985 A JPS58170985 A JP S58170985A
- Authority
- JP
- Japan
- Prior art keywords
- drive mechanism
- operating shaft
- shaft
- drive
- output shaft
- 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
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/05—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor specially adapted for operating hand-operated valves or for combined motor and hand operation
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、主としてバルブを開閉させるのに用いられる
往復動バルブアクチュエータに関するものである、
この種のアクチュエータとして、モータ等による自動運
転用駆動機構と手動ハンドル等ｌこよる緊急用駆動機構
とを各別（こ設けておき、これら各機構を選択的１こ使
用して出力軸を往復動させるための作動軸を駆動するこ
とができるようｉこしたものがある。ところが、従来の
ものは、例えば、緊急用駆動機構を使用する場合ｉこは
自動運転用駆動機構を作動軸から切り離さざるを得ない
ものが一般的であるため、格別な切換機構が不可欠とな
り構成の複雑化を招くという不都合がある。また、この
ようなものでは、駆動機構の切換操作が必要になるため
、自動運転から緊急時の手動運転への移行あるいは、そ
の逆の移行を円滑ｌこ行なうのが難しいという問題があ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a reciprocating valve actuator that is mainly used to open and close a valve. This type of actuator includes a drive mechanism for automatic operation using a motor or the like, a manual handle, etc. However, there is a system in which separate emergency drive mechanisms are provided so that one of these mechanisms can be selectively used to drive the operating shaft for reciprocating the output shaft. In conventional systems, for example, when using an emergency drive mechanism, it is common to have to separate the automatic operation drive mechanism from the operating shaft, so a special switching mechanism is essential, and the configuration has to be changed. This has the disadvantage of complicating the system.Also, since such a device requires a switching operation of the drive mechanism, it is difficult to smoothly transition from automatic operation to manual operation in an emergency, or vice versa. The problem is that it is difficult to
そのため、２種類の駆動機構を単一の作動軸に常時係合
させておき、格別な切換操作なしＩこいずれかの駆動機
構を選択的ｌこ使用して前記作動軸を駆動することがで
きろよう１こしたものが望まれているうしかしながら、
２種類の駆動機構を一定の関連を持たせて共通の作動軸
に常時係合させておくようＩこした場合、前記作動軸ｇ
こ軸心方向の緩衝機能を持たせることが難しい。つまり
、従来のもののように簡単な構成により作動軸を軸心方
向３こ弾性変位可能１こ保持することが困難である。そ
のため、前記作動軸と前記出力軸とを通常の連結具を用
いて連結したのでは、弁が閉じた場合等ｉこ前記出力軸
に作用する衝撃荷重や、バルブ内の熱！こより弁軸が膨
張した場合ｒｃ前記出力軸に作用する膨張荷重等が前記
作動軸を介して前記駆動機構奢こ伝達されることＩこな
る。したがって、それらの荷重１こより駆動機構が破壊
されたり、反作用１こよりバルブの弁体が損傷を受ける
というような不都合を招くおそれがある、
本発明は、このような事情に着目してなされたもので、
フレームに対して軸心回りＩこ回転可能蕃こかつ軸心方
向に進退可能Ｉこ配設され外局面所要個所艮送りねじ部
を有した作動軸と、この作動軸の送りねじ部に螺合する
ドライブナツトを有しこのナツトを前記作動軸に対して
回転させること５こよって該作動軸を進退させる第１の
駆動機構と、前記作動軸を前記ドライブナツトＩこ対し
て回転させることによって該作動軸を螺合進退させる第
２の駆動機構と、基端を前記作動軸の軸端ｉこ臨ませた
出力軸と、この出力軸を前記フレーム１こ対して回転不
能に支持しつつ該出力軸と前記作動軸とを軸心回り■こ
回転可能ｆこかつ軸心方向に所要距離だけ弾性変位可能
に連結する連結機構とを具備してなるものにすることに
よって前述した不都合をことごとく解消することができ
る往復動バルブアクチュエータを提供するものである。Therefore, two types of drive mechanisms are always engaged with a single actuating shaft, and either of these drive mechanisms can be selectively used to drive the said actuating shaft without any special switching operation. However, what is desired is something that has been filtered through the filter.
When two types of drive mechanisms are kept in a certain relationship and always engaged with a common operating shaft, the operating shaft g
It is difficult to provide a buffer function in the axial direction. In other words, it is difficult to hold the actuating shaft so that it can be elastically displaced three times in the axial direction with a simple structure like the conventional one. Therefore, if the operating shaft and the output shaft are connected using a normal coupling tool, the shock load that acts on the output shaft when the valve is closed, and the heat inside the valve! Therefore, when the valve shaft expands, the expansion load, etc. acting on the output shaft is transmitted to the drive mechanism via the operating shaft. Therefore, there is a risk that the drive mechanism may be destroyed due to such a load, and the valve body of the valve may be damaged due to the reaction force.The present invention was made with attention to such circumstances. in,
An operating shaft that is rotatable around the axis relative to the frame and can move forward and backward in the axial direction, and has a feed screw portion at the required locations on the outer surface, and is screwed into the feed screw portion of the actuation shaft. a first drive mechanism for moving the actuating shaft forward and backward; a second drive mechanism for screwing the operating shaft back and forth; an output shaft having its base end facing the shaft end of the operating shaft; All of the above-mentioned inconveniences are eliminated by providing a coupling mechanism that connects the shaft and the operating shaft so that they can rotate around the axis and can be elastically displaced by a required distance in the axial direction. The present invention provides a reciprocating valve actuator that can.
以下、本発明の一実施例を図面を参照して説明するう
箱状のフレーム１内１こ、上端部外周面に送りねじ部２
ａを有した作動軸２を軸心回りに回転可能Ｉこかつ軸心
方向に進退可能ｉこ配設している。そして、前記フレー
ム１゛の上段部に第１の駆動機構３を設けている。第１
の駆動機構３は、前記作動軸２の送りねじ部２ａと螺合
するドライブナツト４とこのドライブナツト４の外周ｇ
こ固着したウオームホイール５と、このウオームホイー
ル５に噛合するウオーム６と、このウオーム６を回転さ
せるモータ７とを具備してなる。そして、前記トライブ
ナブト４と前記ウオームホイール５とは、保持部材８１
こ包持されベアリング９．９を介して前記フレーム１に
回転可能ＩＣかつ軸心方向に移動不能に支持されている
。また、前記フレーム１の中段部ｌこ第２の駆動機構１
１を設けている。第２の駆動機構１１は、前記作動軸２
の外周に固着され外周（こスブライノ１２＆を有したス
リーブ１２と、このスリーブ１２の外周ｌこ一体回転可
能にかつ軸心方向Ｅこスライド可能に嵌合させたウオー
ムホイール１８と、このウオームホイール１８−噛合さ
せたウオーム１４と、このウオーム１４を回転させるｔ
コめの手動ハンドル１５とを具備してなる。そして、前
記ウオームホイール１８は、前記フレーム１に回転可能
に保持されている。また、前記フレーム１の底壁１ａの
軸心部に出力軸１６を貫通させこの出力軸１６の基端を
前記作動軸２の下端に臨ませている。そして、この出力
軸１６と前記作動軸２とを連結機構１７を介して連結し
ている。連結機構１７は、底壁中心部が前記出力軸１４
の基端ねじ部１６ａｔこ螺着されビン１８により該出力
軸１６に固定されたカップ状のブロック１９と、このブ
ロック１９のと端開口部層こ固着され軸孔２０＆の両開
口端部にスラストベアリング２１．２２を保持し１こベ
アリングリテーナ２０とを有してＪ、ｓる。Hereinafter, one embodiment of the present invention will be explained with reference to the drawings.
An actuating shaft 2 having a diameter A is arranged so as to be rotatable around the axis and movable forward and backward in the axial direction. A first drive mechanism 3 is provided in the upper part of the frame 1''. 1st
The drive mechanism 3 includes a drive nut 4 screwed into the feed screw portion 2a of the operating shaft 2, and an outer circumference g of the drive nut 4.
The worm wheel 5 is provided with a worm wheel 5 fixed to the worm wheel 5, a worm 6 that meshes with the worm wheel 5, and a motor 7 that rotates the worm 6. The tribe nabut 4 and the worm wheel 5 are connected to a holding member 81
The IC is enclosed and supported by the frame 1 via bearings 9.9 so as to be rotatable and immovable in the axial direction. In addition, the middle part of the frame 1 has a second drive mechanism 1.
1 is provided. The second drive mechanism 11 includes the operating shaft 2
A sleeve 12 fixed to the outer periphery of the sleeve 12 and having an outer periphery, a worm wheel 18 fitted to the outer periphery of the sleeve 12 so as to be integrally rotatable and slidable in the axial direction; - The meshed worm 14 and the t that rotates this worm 14.
It is equipped with a manual handle 15. The worm wheel 18 is rotatably held by the frame 1. Further, an output shaft 16 is passed through the axial center of the bottom wall 1a of the frame 1, and the base end of the output shaft 16 faces the lower end of the operating shaft 2. This output shaft 16 and the operating shaft 2 are connected via a connecting mechanism 17. The connection mechanism 17 has a center portion of the bottom wall connected to the output shaft 14.
A cup-shaped block 19 is screwed into the base end screw portion 16at and fixed to the output shaft 16 by a pin 18, and a cup-shaped block 19 is fixed to the end opening layer of this block 19 and thrust into both opening ends of the shaft hole 20&. It has one bearing retainer 20 that holds the bearings 21 and 22.
そして、前記作動軸２の下端部は、前記両スラストベア
リノグ２１．２２を回転およびスライド可能に貫通して
前記ブロック１７内Ｅこ挿入されており、その挿入端５
こ形成したねじ部２ｂ＋こは、下側のスラストベアリン
グ２１に当接可能な抜止用のナツト２８が螺着してゐる
つまた、上側のスラストベアリング２２と前記スリーブ
１２の下端面との間ｉこは、前記作動軸２に巻装した皿
ばね２４．２４が介在させてゐり、該皿ばね２４．２４
の反発力Ｅこよって前記ナツト２３を前記ベアリンク−
２１＋こ当接させている。また、前記ブロック１９の外
周に、軸心方向の係合溝２５を形成し、この係合溝２５
足前記フレームＩＩζ軸着したローラ２６を係合させる
ことによって、前記ブロック１９並びに前記出力軸１６
がフレーム１＋こ対して回転するのを防止している。The lower end of the operating shaft 2 is inserted into the block 17 by rotatably and slidably passing through both thrust bearing nogs 21 and 22, and its insertion end 5
The threaded portion 2b thus formed is screwed with a retaining nut 28 that can come into contact with the lower thrust bearing 21, and is also threaded between the upper thrust bearing 22 and the lower end surface of the sleeve 12. A disc spring 24.24 wound around the operating shaft 2 is interposed in this case, and the disc spring 24.24
The repulsive force E thus pushes the nut 23 against the bear link.
21+ is in contact. Further, an engagement groove 25 in the axial direction is formed on the outer periphery of the block 19, and this engagement groove 25
By engaging the roller 26 mounted on the frame IIζ, the block 19 and the output shaft 16 are
This prevents the frame from rotating relative to the frame.
次いで、本実施例１こ係る装置の作動を説明する。Next, the operation of the device according to the first embodiment will be explained.
第２の駆動機［１１を停止トさせておき第１の駆動機構
３のモータ７を回転させると、その回転力カラオーム６
→ウオームホイール５−呻ドライブナツト４の順に伝達
され、前記トライブナブト４が回転駆動される。このと
き、作動軸２の回転は、第２の駆動機構１１のウオーム
１４部によって阻止されるので、該作動軸２は回転する
ことなく上、下方向Ｅこ進退動作を行なう。一方、第１
の駆動機構３を停止させて第２の駆動機構１１の手動ハ
ンドル１３を回転させると、その回転力がウオーム１４
−ウオームホイール１８−スリーブ１２→作動軸２の順
に伝達され、前記作動軸２が回転する。このとき、前記
ドライブナツト４の回転は第１の駆動機構３のウオーム
６部によって阻止されるので、前記作動軸２は前記トラ
イブナブト４Ｉこ対して螺合進退することになる。つま
り、前記作動軸２は手動ハンドル１５を回転させると、
回転しながら上、下方向に進退動作を行なう。When the second drive mechanism [11 is stopped and the motor 7 of the first drive mechanism 3 is rotated, the rotational force is generated by the color ohm 6.
-> Worm wheel 5 - drive nut 4 are transmitted in this order, and the tribe nut 4 is rotationally driven. At this time, the rotation of the operating shaft 2 is prevented by the worm 14 of the second drive mechanism 11, so the operating shaft 2 moves upward and downward E without rotating. On the other hand, the first
When the second drive mechanism 3 is stopped and the manual handle 13 of the second drive mechanism 11 is rotated, the rotational force is applied to the worm 14.
- Wormwheel 18 - Sleeve 12 → Operating shaft 2 is transmitted in this order, and said operating shaft 2 rotates. At this time, since the rotation of the drive nut 4 is prevented by the worm 6 of the first drive mechanism 3, the operating shaft 2 is threadedly engaged with and moves back and forth against the tribe nut 4I. That is, when the operating shaft 2 rotates the manual handle 15,
It moves forward and backward in the upward and downward directions while rotating.
このよう１こして、作動軸２が進退動作を行なうと、連
結機構１７を介して該作動軸２に連結された出力軸１６
がそ才１． ｌ乙付勢されて進退動作を行なうことにな
るが、ＥｒＩ紀作ｐ） １Ｉｔｌ ２が回転を伴って進
退動作を行なう場合ｉこは、ローラ２６＋こよって同転
を禁止されているブロック１９＋こ対してＲ記作動＠２
が空回りすること■乙なる。そのため、前記出力軸１６
は常に進退動作のみを行なうものである。ところで、こ
のようｆこして、出力軸２を作動させている際に該出力
軸２Ｉこ支持されて進退するバルブの弁体が弁座ｆこ衝
突して前記出力軸Ｉｎ衝撃荷重が作用したり、弁体閉止
後１こバルブ内の流体の熱によって弁軸が熱膨張し前記
出力軸１６に突上げ方向の荷重が作用しｔコような場合
Ｅこは、皿ばね２４．２４が縮んでその荷Ｎを吸収する
ことｌこなるっそのため、前記作動軸２１こ、前記出力
軸１６＋こ作用する各種の荷重が直接作用して駆動機構
３．１１を破壊したり、その反作用１こよって弁体を損
傷させるような不都合は生じない。In this manner, when the operating shaft 2 moves forward and backward, the output shaft 16 connected to the operating shaft 2 via the coupling mechanism 17
Gaso 1. It is energized and moves forward and backward, but if ErIkisaku p) 1Itl 2 moves forward and backward with rotation, then the roller 26+ will move the block 19+, which is prohibited from rotating at the same time. On the other hand, R operation @2
■ To be idle. Therefore, the output shaft 16
always performs only forward and backward movement. By the way, when the output shaft 2 is operated, the valve body of the valve that is supported by the output shaft 2I and moves back and forth collides with the valve seat f, and an impact load is applied to the output shaft In. When the valve shaft is thermally expanded by the heat of the fluid inside the valve after the valve body is closed, and a load is applied to the output shaft 16 in the upward direction, the disc springs 24 and 24 are compressed. Therefore, various loads acting on the operating shaft 21 and the output shaft 16 may directly act on the drive mechanism 3.11 and destroy the drive mechanism 3.11, or the reaction 1 may cause the valve There will be no inconvenience that may cause bodily injury.
なお、本発明は、前記実施例え限定されないのは勿論で
あり、例えば、第１の駆動機構を手動式にし、第２の駆
動機構を自動式にしたものでもよいし、両機構とも自動
式１こあるいは手０１式にしたものでもよい。両機構を
自動式艮する場合Ｉこは一方の機構を正転用蚤こし他方
の機構を逆転用にしてもよい。まｔコ、連結機構の構成
も図示実施例のもの番こ限らす、例えば、前記実施例１
こおけるスウストベアリノク２１とナツト２３との間ｆ
こも■ｌばねを介在させるよう１こしｔこり、回転止め
のローラ２６足代えて、キーを用いるようｌこしてもＡ
：い。Note that the present invention is of course not limited to the above-mentioned embodiments; for example, the first drive mechanism may be a manual type and the second drive mechanism may be an automatic type, or both mechanisms may be an automatic type. Alternatively, it may be a type 01. If both mechanisms are automatic, one mechanism may be used for forward rotation and the other mechanism may be used for reverse rotation. Also, the structure of the coupling mechanism is limited to that of the illustrated embodiment, for example, the above-mentioned embodiment 1.
Between Soustbearinok 21 and Natsuto 23 f
Even if you use a spring to intervene, replace the rotation stopper roller 26, and use a key.
:stomach.
本発明は、以上のような構成であるから、第１の駆動機
構と第２の駆動機構とを切り換える場合裔こは、使用し
ない方の１、動機構を停止させるｔごけで〆よい。ま１
こ、誤まって、Ｊ）るいは、故ハに面駆動機構を同Ｒ：
ｊ ｔこｉ′￥動させても各駆動機構には何らの無理な
力も作用しない。そのため、いずれかの駆動機構を作動
軸から切り離すための格別な切換機構を設ける必要が全
くなく、構成の大幅な簡略化を図る゛ことができるとと
もＩこ、切換操作も一切不用となり、面駆動機構の切り
換えを円滑ｌこ行なうことができるものであるつしかも
、作動軸と出力軸とを連結する連結機構Ｊこ軸心方向の
緩衝機能を持たせているので、出力軸に作用する各種の
突上げ荷重をこの連結機構部分で吸収することができる
。そのため、出力軸に作用する衝撃荷重や弁軸の熱膨張
によるａ Ｍ ｔこよって駆動機構が破壊されたり、弁
体が損傷するという不都合を簡単な構成により有効Ｅこ
防止することができるものである。Since the present invention has the above-described configuration, when switching between the first drive mechanism and the second drive mechanism, all that is required is to stop the first drive mechanism that is not in use. M1
By mistake, I put the surface drive mechanism in J) or C:
No unreasonable force is applied to each drive mechanism even if the drive mechanism is moved by this distance. Therefore, there is no need to provide a special switching mechanism to separate one of the drive mechanisms from the operating shaft, and the configuration can be greatly simplified. In addition, the coupling mechanism that connects the actuating shaft and output shaft has a buffering function in the axial direction, so that the switching of the drive mechanism can be performed smoothly. The upthrust load can be absorbed by this connection mechanism part. Therefore, with a simple configuration, it is possible to effectively prevent problems such as destruction of the drive mechanism or damage to the valve body due to shock loads acting on the output shaft or thermal expansion of the valve stem. be.
図面は本発明の一実施例を示す断面図である。 １・・・フレーム ２・・・作動軸 The drawing is a sectional view showing an embodiment of the present invention. 1... Frame 2... Operating axis
Claims (1)
向に進退可能ｆこ配設され外周面所要個ｆｔこ送りねじ
部を有した作動軸と、この作動軸の送りねじ部に螺合す
るドライブナツトを有しこのナツトを前記作動軸ｌこ対
して回転させることＩこよって該作動軸を進退させる第
１の駆動機構と、ｌＩＩ記作動作動軸記ドライブナツト
に対して回転させることによって該作動軸を螺合進退さ
せる第２の駆動機構と、基端を前記作動軸の一端ｄこ臨
ませた出力軸と、この出力軸を前記フレームに対して回
転不能ｉこ支持しつつ該出力軸と前記作動軸とを軸心回
りに回転可能にかつ軸心方向１こ所要距離だけ伸性変位
可能に連結する連結機構とを具備してなることを特徴と
する往復動バルブアクチュエータ５An operating shaft is provided that is rotatable around the axis of the frame 1 and can move forward and backward in the axial direction, and has a feed screw portion of the required number of feet on the outer circumferential surface. a first drive mechanism for advancing and retracting the operating shaft; a second drive mechanism that screws the operating shaft forward and backward; an output shaft whose base end faces one end of the operating shaft; and a second drive mechanism that supports the output shaft non-rotatably relative to the frame. A reciprocating valve actuator 5 comprising a coupling mechanism that connects the output shaft and the operating shaft rotatably around the axis and elastically displaceable by a required distance in the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5469982A JPS58170985A (en) | 1982-03-31 | 1982-03-31 | Reciprocative valve actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5469982A JPS58170985A (en) | 1982-03-31 | 1982-03-31 | Reciprocative valve actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58170985A true JPS58170985A (en) | 1983-10-07 |
Family
ID=12978047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5469982A Pending JPS58170985A (en) | 1982-03-31 | 1982-03-31 | Reciprocative valve actuator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58170985A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0657237U (en) * | 1993-01-27 | 1994-08-09 | みのり商事株式会社 | Japanese chest of drawers |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4323476Y1 (en) * | 1964-03-07 | 1968-10-03 | ||
| JPS445826Y1 (en) * | 1965-05-20 | 1969-03-03 | ||
| JPS5128655U (en) * | 1974-08-23 | 1976-03-02 |
-
1982
- 1982-03-31 JP JP5469982A patent/JPS58170985A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4323476Y1 (en) * | 1964-03-07 | 1968-10-03 | ||
| JPS445826Y1 (en) * | 1965-05-20 | 1969-03-03 | ||
| JPS5128655U (en) * | 1974-08-23 | 1976-03-02 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0657237U (en) * | 1993-01-27 | 1994-08-09 | みのり商事株式会社 | Japanese chest of drawers |
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