JPH08200206A - Spring type actuator - Google Patents
Spring type actuatorInfo
- Publication number
- JPH08200206A JPH08200206A JP1117895A JP1117895A JPH08200206A JP H08200206 A JPH08200206 A JP H08200206A JP 1117895 A JP1117895 A JP 1117895A JP 1117895 A JP1117895 A JP 1117895A JP H08200206 A JPH08200206 A JP H08200206A
- Authority
- JP
- Japan
- Prior art keywords
- spring
- protection cylinder
- holder
- rod
- bearing
- 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
- F15B15/06—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement
- F15B15/066—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement the motor being of the scotch yoke type
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanically-Actuated Valves (AREA)
- Actuator (AREA)
- Springs (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、バルブの開閉等軸回転
を要するばね式アクチュエータに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spring type actuator which requires axial rotation such as opening and closing of a valve.
【0002】[0002]
【従来の技術】従来のばね式アクチュエータについて図
4に基づき説明する。図4はアクチュエータの全体を示
す断面図である。19はシリンダ室、20はピストンで
ある。21はロッドで、一端をピストン20に固定し、
他端をばね受皿22に固定し、ロッド用軸受23によっ
て支持されている。24はピンで、ロッド21に設けら
れている。25は弁開閉操作をする出力軸で、アーム2
6を有し、このアーム26の摺動用溝27はピン24と
係合され、ピストン20の往復運動を出力軸25の回転
運動に変換するようになっている。2. Description of the Related Art A conventional spring type actuator will be described with reference to FIG. FIG. 4 is a sectional view showing the entire actuator. Reference numeral 19 is a cylinder chamber, and 20 is a piston. 21 is a rod, one end of which is fixed to the piston 20,
The other end is fixed to the spring tray 22 and is supported by the rod bearing 23. 24 is a pin, which is provided on the rod 21. Reference numeral 25 is an output shaft for opening and closing the valve, which is an arm 2
6, the sliding groove 27 of the arm 26 is engaged with the pin 24 to convert the reciprocating motion of the piston 20 into the rotary motion of the output shaft 25.
【0003】28はばね保護筒である。29はばねで、
一端をロッド21の端部に設けたばね受皿に装着し、他
端をばね保護筒の端部に装着している。これらの構成を
有する従来のばね式アクチュエータにおいて、ばね29
に長いものを用いた場合には、ばね自体の重さでばねが
たるんでばねの中間部が下り、図中Cで示す点近辺でば
ねとばね保護筒とが接触することがあった。Reference numeral 28 is a spring protection cylinder. 29 is a spring,
One end is attached to a spring tray provided at the end of the rod 21, and the other end is attached to the end of the spring protection cylinder. In the conventional spring type actuator having these configurations, the spring 29
When a long one is used, the spring sags due to the weight of the spring itself and the middle part of the spring goes down, and the spring and the spring protection cylinder may come into contact with each other near the point indicated by C in the figure.
【0004】また、一定以上の長さのばねは、材料寸法
の制限、熱処理設備の制限により製造できなかったの
で、ばねを複数個に分割し、ばね同志を接合していた。
この場合も前記と同様に、ばね自体の重さでばねがたる
んでばねの中間部が下り、ばねとばね保護筒とが接触す
ることがあった。Further, a spring having a certain length or longer could not be manufactured due to the limitation of the material size and the limitation of the heat treatment equipment. Therefore, the spring was divided into a plurality of pieces and the springs were joined together.
Also in this case, similarly to the above, the spring may sag due to the weight of the spring itself, and the intermediate portion of the spring may descend, causing the spring and the spring protection cylinder to come into contact with each other.
【0005】[0005]
【発明が解決しようとする課題】このため、ばねがたる
んで弓形に変形するので、ばねの反撥力がロッドに対し
て垂直にならず、ばねの反撥力を有効に利用することが
できなかった。また、ばねがばね保護筒に接触すること
で、アクチュエータを動作させバルブの開閉等を行なう
たびにばね及びばね保護筒が摩耗し、ひいては破損する
という問題点があった。Therefore, since the spring sags and deforms into an arc, the repulsive force of the spring is not perpendicular to the rod, and the repulsive force of the spring cannot be effectively used. . Further, since the spring comes into contact with the spring protection cylinder, the spring and the spring protection cylinder are worn and damaged each time the actuator is operated to open or close the valve.
【0006】また、ばねがばね保護筒に接触することに
よって音が生じるのを防ぐため、ばね保護筒を大きく
し、ばねとばね保護筒との隙間を大きくすることは、コ
ストアップになり非経済的であるという問題点があっ
た。そこで、本発明はアクチュエータのロッド先端に保
持具用ガイド軸を設け、ばね保持具によりばねを連結
し、軸受により摺動抵抗を少なくすることで、ばね及び
ばね保護筒が摩耗しない安全確実なばね式アクチュエー
タを提供しようとするものである。Further, in order to prevent the sound from being generated by the contact of the spring with the spring protection cylinder, increasing the size of the spring protection cylinder and increasing the gap between the spring and the spring protection cylinder increases the cost and is uneconomical. There was a problem that it was a target. Therefore, according to the present invention, a guide shaft for a holder is provided at the tip of the rod of the actuator, the spring is connected by the spring holder, and the sliding resistance is reduced by the bearing, so that the spring and the spring protection cylinder are not worn and are safe and secure. It is intended to provide a pneumatic actuator.
【0007】[0007]
【課題を解決するための手段】上記目的を達成するため
本発明は、アクチュエータのばね保護筒内で、ロッドと
同軸の延長線上に設けた保持具用ガイド軸と、前記ばね
保護筒内に設けた保持具により連結され、一端を前記ロ
ッドの端部に設けたばね受皿に装着し、他端を前記ばね
保護筒の端部に装着した2つのばねと、前記保持具の内
周に設けた軸受とを備え、前記軸受が前記保持具用ガイ
ド軸上で摺動可能に配設支持したばね式アクチュエータ
とした。In order to achieve the above object, the present invention provides a holder guide shaft provided on an extension line coaxial with a rod in a spring protection cylinder of an actuator, and in the spring protection cylinder. Bearings provided on the inner circumference of the holder, the two springs being connected by a holder, one end of which is attached to a spring tray provided at the end of the rod and the other end of which is attached to the end of the spring protection cylinder. A spring-type actuator in which the bearing is slidably disposed and supported on the holder guide shaft.
【0008】[0008]
【作用】ばね保護筒内に設けた保持具によって、ばねを
連結し、ばねの一端をロッドの端部に設けたばね受皿に
装着し、他端をばね保護筒の端部に装着し、前記保持具
の内周に設けた軸受を保持具用ガイド軸上を摺動可能と
したので、ばねの動きをなめらかにし、前記保持具によ
りばねを水平状態に支えることができるので、ばねの反
撥力を十分に生かすことができる。With the holder provided in the spring protection cylinder, the springs are connected, one end of the spring is mounted on the spring tray provided on the end of the rod, and the other end is mounted on the end of the spring protection cylinder, and the holding is performed. Since the bearing provided on the inner circumference of the tool can slide on the holder guide shaft, the movement of the spring can be smoothed and the spring can be supported horizontally by the holder, so that the repulsive force of the spring can be reduced. You can make good use of it.
【0009】[0009]
【実施例】図1は本発明のばね式アクチュエータを示す
側面断面図である。図2は本発明のばね式アクチュエー
タの保持具の部分についての拡大断面図である。図1に
おいて、1はシリンダ室、2はピストンである。3はロ
ッドで、一端をピストン2に固定し、他端をばね受皿4
に固定し、ロッド用軸受5によって支持されている。6
はピンで、ロッド3に設けた。7は弁開閉操作等の軸回
転操作をする出力軸で、アーム8を有し、このアーム8
の摺動用溝9は前記ピン6と係合され、ピストン2の往
復運動を出力軸7の回転運動に変換するようになってい
る。1 is a side sectional view showing a spring type actuator of the present invention. FIG. 2 is an enlarged cross-sectional view of the holder of the spring type actuator of the present invention. In FIG. 1, 1 is a cylinder chamber and 2 is a piston. 3 is a rod, one end of which is fixed to the piston 2 and the other end of which is a spring tray 4
And is supported by a rod bearing 5. 6
Is a pin attached to the rod 3. Reference numeral 7 is an output shaft for rotating the shaft such as opening and closing the valve, and has an arm 8.
The sliding groove 9 is engaged with the pin 6 and converts the reciprocating movement of the piston 2 into the rotational movement of the output shaft 7.
【0010】10はばね保護筒である。11は保持具用
ガイド軸で、ロッド3の先端に取付けている。12は保
持具で、ばねを保持連結している。13はばね保護筒の
端部である。14はばねで、保持具12により連結さ
れ、一端をロッドの端部に設けたばね受皿4に装着さ
れ、他端をばね保護筒の端部13に装着されている。こ
のばね14は、ピストン2を押し戻す働きをする。Reference numeral 10 is a spring protection cylinder. A guide shaft 11 for a holder is attached to the tip of the rod 3. A holding tool 12 holds and connects a spring. 13 is the end of the spring protection tube. Reference numeral 14 is a spring, which is connected by a holder 12 and has one end attached to a spring tray 4 provided at the end of the rod and the other end attached to an end 13 of a spring protection cylinder. This spring 14 serves to push the piston 2 back.
【0011】図2に示すように、ばね14はA点及びB
点で保持具12を介して連結されている。15は軸受
で、保持具12の内周に設けられ、保持具用ガイド軸1
1上を抵抗が少なくなめらかに摺動可能である。したが
って、保持具12は保持具12によって連結されている
2つのばね14の長さによって、均衡が保たれる状態で
保持される。As shown in FIG. 2, the spring 14 has points A and B.
The points are connected via a holder 12. Reference numeral 15 denotes a bearing, which is provided on the inner circumference of the holder 12 and is provided with the holder guide shaft 1.
It has a low resistance and can slide smoothly. Therefore, the holder 12 is held in a balanced state by the lengths of the two springs 14 connected by the holder 12.
【0012】また、軸受15が保持具用ガイド軸11上
を抵抗が少なく摺動可能であるので、ばね14がたるん
でばね保護筒に接触することがなく、しかも、ばね14
の反撥力を有効にロッド3に伝えることができるので、
ピストン2を押し戻すのに有効である。図3に示したも
のは、本発明の他実施例を示すものである。16は保持
具用ガイド軸、17は保持具、18は軸受である。Further, since the bearing 15 can slide on the holder guide shaft 11 with a small resistance, the spring 14 does not sag and come into contact with the spring protection cylinder.
Since the repulsive force of can be effectively transmitted to the rod 3,
It is effective for pushing back the piston 2. FIG. 3 shows another embodiment of the present invention. Reference numeral 16 is a holder guide shaft, 17 is a holder, and 18 is a bearing.
【0013】この他実施例で示したアクチュエータにお
いては、本発明の一実施例で示したものに比べ、保持具
用ガイド軸を細くしたものである。動作、作用について
は、本発明の一実施例で示したアクチュエータと同様で
ある。In the actuator shown in the other embodiment, the holder guide shaft is thinner than that shown in the embodiment of the present invention. The operation and action are similar to those of the actuator shown in the embodiment of the present invention.
【0014】[0014]
【発明の効果】ばね式アクチュエータにおいて、ばね保
持具の内周に軸受を設けたので、保持具を保持具用ガイ
ド軸になめらかに摺動させることができ、ばねの自重に
よるたわみをなくし、ばねの反撥力を有効に利用するこ
とができるようになった。また、保持具用ガイド軸がロ
ッドに固定されているので、正確かつ確実なアクチュエ
ータとすることができるようになった。In the spring type actuator, since the bearing is provided on the inner circumference of the spring holder, the holder can be smoothly slid on the holder guide shaft and the flexure due to the weight of the spring can be eliminated. You can now effectively use the repulsive force of. Moreover, since the holder guide shaft is fixed to the rod, an accurate and reliable actuator can be provided.
【図1】本発明の一実施例を示すアクチュエータの側面
断面図FIG. 1 is a side sectional view of an actuator showing an embodiment of the present invention.
【図2】本発明の一実施例のばね保持部の部分拡大側面
断面図FIG. 2 is a partially enlarged side sectional view of a spring holding portion according to an embodiment of the present invention.
【図3】本発明の他実施例を示すアクチュエータの側面
断面図FIG. 3 is a side sectional view of an actuator showing another embodiment of the present invention.
【図4】従来の発明におけるアクチュエータの側面断面
図FIG. 4 is a side sectional view of an actuator according to a conventional invention.
3 ロッド 4 ばね受皿 10 ばね保護筒 11、16 保持具用ガイド軸 12、17 保持具 13 ばね保護筒の端部 14 ばね 15、18 軸受 3 Rod 4 Spring Dish 10 Spring Protective Cylinder 11, 16 Holder Guide Shaft 12, 17 Clamp 13 End of Spring Protective Cylinder 14 Spring 15, 18 Bearing
Claims (1)
ドと同軸の延長線上に設けた保持具用ガイド軸と、前記
ばね保護筒内に設けた保持具により連結され、一端を前
記ロッドの端部に設けたばね受皿に装着し、他端を前記
ばね保護筒の端部に装着した2つのばねと、前記保持具
の内周に設けた軸受とを備え、前記軸受が前記保持具用
ガイド軸上で摺動可能に配設支持したことを特徴とする
ばね式アクチュエータ。1. A holder protection shaft provided on an extension line coaxial with a rod in a spring protection cylinder of an actuator is connected to a holder provided in the spring protection cylinder, and one end thereof is connected to an end portion of the rod. And a bearing provided on the inner circumference of the holder, the bearing being on the holder guide shaft. A spring-type actuator characterized in that it is slidably disposed and supported by.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1117895A JPH08200206A (en) | 1995-01-27 | 1995-01-27 | Spring type actuator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1117895A JPH08200206A (en) | 1995-01-27 | 1995-01-27 | Spring type actuator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH08200206A true JPH08200206A (en) | 1996-08-06 |
Family
ID=11770813
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1117895A Pending JPH08200206A (en) | 1995-01-27 | 1995-01-27 | Spring type actuator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH08200206A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007285404A (en) * | 2006-04-17 | 2007-11-01 | Kitz Corp | Spring type actuator |
EP2075812A1 (en) * | 2007-12-28 | 2009-07-01 | ABB Technology Ltd | Spring protection device and spring drive unit including spring protection device |
JP2009184595A (en) * | 2008-02-08 | 2009-08-20 | Kayaba Ind Co Ltd | Suspension device |
WO2011135864A1 (en) * | 2010-04-28 | 2011-11-03 | 日本発條株式会社 | Valve actuator |
CN105570229A (en) * | 2016-01-26 | 2016-05-11 | 浙江申仪自动阀门有限公司 | Actuator having buffering effect |
WO2017149672A1 (en) * | 2016-03-01 | 2017-09-08 | 株式会社島津製作所 | Moving-type radiation device |
-
1995
- 1995-01-27 JP JP1117895A patent/JPH08200206A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007285404A (en) * | 2006-04-17 | 2007-11-01 | Kitz Corp | Spring type actuator |
EP2075812A1 (en) * | 2007-12-28 | 2009-07-01 | ABB Technology Ltd | Spring protection device and spring drive unit including spring protection device |
JP2009184595A (en) * | 2008-02-08 | 2009-08-20 | Kayaba Ind Co Ltd | Suspension device |
WO2011135864A1 (en) * | 2010-04-28 | 2011-11-03 | 日本発條株式会社 | Valve actuator |
CN105570229A (en) * | 2016-01-26 | 2016-05-11 | 浙江申仪自动阀门有限公司 | Actuator having buffering effect |
WO2017149672A1 (en) * | 2016-03-01 | 2017-09-08 | 株式会社島津製作所 | Moving-type radiation device |
JPWO2017149672A1 (en) * | 2016-03-01 | 2018-12-27 | 株式会社島津製作所 | Mobile radiation equipment |
US10674978B2 (en) | 2016-03-01 | 2020-06-09 | Shimadzu Corporation | Moving type radiation device |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060706 |
|
A02 | Decision of refusal |
Effective date: 20070118 Free format text: JAPANESE INTERMEDIATE CODE: A02 |