JPS60179501A - Pneumatic cylinder - Google Patents

Pneumatic cylinder

Info

Publication number
JPS60179501A
JPS60179501A JP3473484A JP3473484A JPS60179501A JP S60179501 A JPS60179501 A JP S60179501A JP 3473484 A JP3473484 A JP 3473484A JP 3473484 A JP3473484 A JP 3473484A JP S60179501 A JPS60179501 A JP S60179501A
Authority
JP
Japan
Prior art keywords
piston
hydraulic cylinder
pneumatic cylinder
cylinder
speed
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
Application number
JP3473484A
Other languages
Japanese (ja)
Inventor
Mitsuo Miwa
三輪　光男
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
OKUMA HOWA KIKAI KK
Original Assignee
OKUMA HOWA KIKAI KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by OKUMA HOWA KIKAI KK filed Critical OKUMA HOWA KIKAI KK
Priority to JP3473484A priority Critical patent/JPS60179501A/en
Publication of JPS60179501A publication Critical patent/JPS60179501A/en
Pending legal-status Critical Current

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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/06—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam
    • F15B11/072—Combined pneumatic-hydraulic systems
    • F15B11/076—Combined pneumatic-hydraulic systems with pneumatic drive or displacement and speed control or stopping by hydraulic braking
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
    • F15B2211/212—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being accumulators
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/327—Directional control characterised by the type of actuation electrically or electronically
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41527—Flow control characterised by the connections of the flow control means in the circuit being connected to an output member and a directional control valve
    • F15B2211/41536—Flow control characterised by the connections of the flow control means in the circuit being connected to an output member and a directional control valve being connected to multiple ports of an output member
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7055—Linear output members having more than two chambers
    • F15B2211/7056—Tandem cylinders
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/75—Control of speed of the output member
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/885—Control specific to the type of fluid, e.g. specific to magnetorheological fluid
    • F15B2211/8855—Compressible fluids, e.g. specific to pneumatics

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)

Abstract

PURPOSE:To provide possibility of carrying out speed adjustment freely as well as operation at a stable speed by coupling the piston of a pneumatic cylinder solidly with that of an oil hydraulic cylinder, and by putting the chambers on both sides of the hydraulic cylinder in communication with each other via a throttle valve. CONSTITUTION:Piston 6 of a pneumatic cylinder 2 is coupled solidly with that 8 of an oil hydraulic cylinder 3, and the chambers on both sides of the hydraulic cylinder 3 are put in communication with each other via a throttle valve 21. Thereby the air pressure acts solely as a driving motive, and the speed is controlled by the hydraulic cylinder 3, so that speed adjustment can be made freely as well as the operating speed retained stably.

Description

【発明の詳細な説明】 技術分野 この発明は動作速度の調整ができる空気圧シリンダに関
する。TECHNICAL FIELD This invention relates to a pneumatic cylinder with adjustable operating speed.

従来技術 一般の工場では空気圧源が得られやすいため空気圧シリ
ンダはアクチュエータとして気安く使用されている。　
しかし空気圧シリンダは駆動源としてのみ使用する場合
では特に問題はないが動作速度に注文がある場合はその
制御が行い難いという欠点かある。PRIOR ART In general factories, pneumatic cylinders are easily used as actuators because pneumatic sources are easily available.
However, when the pneumatic cylinder is used only as a driving source, there is no particular problem, but when there is an order to the operating speed, it has the disadvantage that it is difficult to control it.

目的 従ってこの発明は上記に鑑みなされたもので、速度調整
が自由に行なえ安定した速度で作動する空気圧シリンダ
を提供しようとするものである。OBJECTS Accordingly, the present invention has been made in view of the above, and an object thereof is to provide a pneumatic cylinder whose speed can be freely adjusted and which operates at a stable speed.

解決手段 空気圧シリンダと油圧シリンダの２個のシリンダに嵌装
されたそれぞれのピストンを１体にＭＩ７ｉしピストン
ロンドに動力伝達部を形成し、前記空気圧シリンダのピ
ストンの両側の室は圧力空気源と大気側にそれぞれ連通
させ前記油圧シリンダのピストンの両側の室は途中に速
度調整用絞り弁２介して連通させたものである。Solution: The pistons fitted in two cylinders, a pneumatic cylinder and a hydraulic cylinder, are integrated into one MI7i to form a power transmission part in the piston rond, and the chambers on both sides of the piston of the pneumatic cylinder are used as a source of pressurized air. The chambers on both sides of the piston of the hydraulic cylinder are communicated with the atmosphere through a speed adjusting throttle valve 2 in the middle.

実施例 以下この考案の実施例を図面にもとづき説明する。　シ
リンダ体１は同一軸心上に空気圧シリンダ２と油圧シリ
ンダ３とが壁４をへだで＼直列に設けられている。　空
気圧シリンダ２には空気漏れのないようＯリング５を外
、４．ｐたピストン６が、また油圧シリンダ３には油漏
れのないようＯリング７を外装したピストン８が嵌装さ
れている。EXAMPLES Below, examples of this invention will be explained based on the drawings. In the cylinder body 1, a pneumatic cylinder 2 and a hydraulic cylinder 3 are provided in series on the same axis with a wall 4 separated. 4. Remove the O-ring 5 from the pneumatic cylinder 2 to prevent air leakage. The hydraulic cylinder 3 is fitted with a piston 8 which is covered with an O-ring 7 to prevent oil leakage.

そしてピストン６とピストン８とは壁４を貫通したロッ
ド９によって一体に連結され、またピストン６のピスト
ンロッド１０はシリンダ体１端の壁１１を貫通して突出
し、ピストン８のピストンロッド１２はシリンダ体１ｇ
ｓの壁１３を貫通して突出している。　そしてこのピス
トンロッド１ｏ。The piston 6 and the piston 8 are integrally connected by a rod 9 passing through the wall 4, and the piston rod 10 of the piston 6 projects through the wall 11 at the end of the cylinder body 1, and the piston rod 12 of the piston 8 1g body
It protrudes through the wall 13 of s. And this piston rod 1o.

１２端に被駆動部材ご連結する。　壁４，１１゜１３の
ロッド貫通部にはそれぞれＯリング１４゜１５．１６か
空気または油の漏れのないように嵌装されている。　そ
して空気圧シリンダ２のピストン６の両側の室にはそれ
ぞれ圧力空気の流出入口１７．１８が設けられていて空
気圧源側と大気側とに切換弁２３を介して接続されてい
る。　また油圧シリンダ乙のピストン８の両側の室には
それぞれ給排口１９．２０が設けられており、速度調整
用の可変絞り弁２１を介して連通されていて給排口１９
はまたシリンダ内の油の漏れによる減少ご補給するため
のタンク２２か接続されている。Connect the driven member to the 12th end. O-rings 14, 15 and 16 are respectively fitted into the rod penetrations of the walls 4 and 11 and 13 to prevent leakage of air or oil. The chambers on both sides of the piston 6 of the pneumatic cylinder 2 are provided with inlets and outlets 17 and 18 for pressurized air, respectively, and are connected to the air pressure source side and the atmosphere side via a switching valve 23. In addition, the chambers on both sides of the piston 8 of the hydraulic cylinder B are provided with supply and discharge ports 19 and 20, respectively, and are communicated with each other via a variable throttle valve 21 for speed adjustment.
It is also connected to a tank 22 for replenishing the oil lost due to leakage in the cylinder.

このように構成された空気圧シリンダの作用を説明する
。　圧力空気が流出入口１７よりシリンダ２の左室に送
られると空気圧によってピストン６か右行させられるよ
うに圧力か加えられる。The operation of the pneumatic cylinder configured in this way will be explained. When pressurized air is sent to the left chamber of the cylinder 2 from the inlet 17, pressure is applied to move the piston 6 to the right.

このためシリンダ２の右室の空気は流出入口１８より排
出される。　また油圧シリンダ３のピストン８もロッド
９によって一体に連結しているため右行させられるよう
に圧力が加えられ、シリンダ３の右室の油は給排口２０
より絞り弁２１で規制されながらシリンダ６の左室へと
環流される。Therefore, the air in the right chamber of the cylinder 2 is discharged from the outflow inlet 18. Furthermore, since the piston 8 of the hydraulic cylinder 3 is also integrally connected by a rod 9, pressure is applied to move it to the right, and the oil in the right chamber of the cylinder 3 flows through the supply/discharge port 20.
It is further regulated by the throttle valve 21 and flows back into the left chamber of the cylinder 6.

油は非圧縮性であるため油の流出量に相当した一定速度
でピストン８及びピストン６が右行させられ、ピストン
ロッド１０．１２に連結された被駆動部材は一定速度で
駆動される。　その移動速度を絞り弁２１を調整するこ
とによって任意に決定される。　従って空気圧シリンダ
２はピストン６を押圧させるために作用するものであり
、油圧シリンダ３は速度−整するために作用するもので
ある。　切換弁２３を切換えて圧力空気を流出入口１８
に送ると油は給排口１９より２・０に向って流れピスト
ン６．８は同じ速度で反対方向に移動させられる。′も
し油圧シリンダ６に油もれが生じたときはタンク２２よ
り補給せられる。　なお両シリンダは直列に配したが並
列に配してピストンを一体に連結することによっても目
的を達成できる。　更に他の実施例を第２図に示す。　
このものはシリンダ２，３を別体にしてピストン６．８
を連結するピストンロッド９′の側面にラック２４を刻
設しピニオン２５を噛合させビニオン軸２６を被駆動部
材と連結するものである。Since oil is incompressible, the pistons 8 and 6 are moved to the right at a constant speed corresponding to the amount of oil flowing out, and the driven member connected to the piston rod 10, 12 is driven at a constant speed. The moving speed is arbitrarily determined by adjusting the throttle valve 21. Therefore, the pneumatic cylinder 2 acts to press the piston 6, and the hydraulic cylinder 3 acts to adjust the speed. Switch the switching valve 23 to direct the pressurized air to the inlet/outlet 18
When the oil is sent to 2.0 from the supply/discharge port 19, the piston 6.8 is moved in the opposite direction at the same speed. 'If oil leaks from the hydraulic cylinder 6, it will be replenished from the tank 22. Although both cylinders are arranged in series, the purpose can also be achieved by arranging them in parallel and connecting the pistons together. Still another embodiment is shown in FIG.
This one has cylinders 2 and 3 separate and piston 6.8
A rack 24 is carved on the side surface of the piston rod 9' that connects the pinion 25 and the pinion shaft 26 is connected to the driven member.

効果 以上詳述したようにこの発明は空気圧シリンダと油圧シ
リンダとを配してそれぞれのピストンを一体に連結する
とともに油圧シリンダはピストンの両側め室を絞り弁を
介して連通させるようになしたので、空気圧は単に駆動
動力として作用し油圧シリンダによって速度が制御され
安定した速度調整か今までの空気圧シリンダと同じ気楽
さで得られるものである。　そして油圧シリンダのよう
に発熱の恐れはなく油圧シリンダと同じ程度に滑らかな
速度調整が可能である。　更にピストンロッドへの負荷
の変動に対しての速度の変化量が空気圧シリンダより一
層良好となるものである。Effects As detailed above, this invention has a pneumatic cylinder and a hydraulic cylinder, each piston is integrally connected, and the hydraulic cylinder communicates the chambers on both sides of the piston through the throttle valve. The air pressure simply acts as the driving force, and the speed is controlled by the hydraulic cylinder, allowing stable speed adjustment with the same ease as with the conventional pneumatic cylinder. Unlike hydraulic cylinders, there is no risk of heat generation, and speed adjustment is as smooth as with hydraulic cylinders. Furthermore, the amount of change in speed with respect to changes in the load on the piston rod is better than that of a pneumatic cylinder.

【図面の簡単な説明】[Brief explanation of the drawing]

、第１図この発明の空気圧シリンダの縦断面図。 第２図は同地の実施例を示す図である。 ２．２′・・・空気圧シリンダ ６．３′・・・油”圧シリンダ ６、　８．　６’、８’・・・　ピスト２ン９、１０．
　１２．９’・・・ピストンロッド２１・・・絞り弁２
２・−タンク, FIG. 1 is a longitudinal sectional view of the pneumatic cylinder of the present invention. FIG. 2 is a diagram showing an example of the same location. 2.2'...Pneumatic cylinder 6.3'...Hydraulic cylinder 6, 8. 6', 8'... Piston 2 9, 10.
12.9'... Piston rod 21... Throttle valve 2
2.-tank

Claims (1)

【特許請求の範囲】[Claims] （１）空気圧シリンダと油圧シリンダの２個のシリンダ
に嵌装されたそれぞれのピストンを１体に連結しピスト
ン四ツドに動力伝達部を形成し、前記空気圧シリンダの
ピストンの両側の窯は圧力空気源と大気側にそれぞれ連
通させ前記油圧シリンダのピストンの両側の室は途中に
速度調整用絞り弁を介して連通させたことを特徴とする
空気圧シリンダ。(1) The pistons fitted in two cylinders, a pneumatic cylinder and a hydraulic cylinder, are connected into one body to form a power transmission part in the four pistons, and the kiln on both sides of the piston of the pneumatic cylinder is connected to the pressurized air. 1. A pneumatic cylinder, characterized in that the chambers on both sides of the piston of the hydraulic cylinder are communicated with a source and the atmosphere through a speed adjusting throttle valve in the middle.
JP3473484A 1984-02-24 1984-02-24 Pneumatic cylinder Pending JPS60179501A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3473484A JPS60179501A (en) 1984-02-24 1984-02-24 Pneumatic cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3473484A JPS60179501A (en) 1984-02-24 1984-02-24 Pneumatic cylinder

Publications (1)

Publication Number Publication Date
JPS60179501A true JPS60179501A (en) 1985-09-13

Family

ID=12422542

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3473484A Pending JPS60179501A (en) 1984-02-24 1984-02-24 Pneumatic cylinder

Country Status (1)

Country Link
JP (1) JPS60179501A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008012704A2 (en) * 2006-07-28 2008-01-31 Ercio Miguel Nema Hydropneumatic regenerative actuator
WO2016091358A1 (en) * 2014-12-13 2016-06-16 Wabco Gmbh & Linear drive, in particular for moving a gearshift lever in a transmission
CN107387482A (en) * 2017-07-14 2017-11-24 太仓优捷特机械有限公司 A kind of mold injection oil hydraulic cylinder

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4516005Y1 (en) * 1965-12-20 1970-07-03

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4516005Y1 (en) * 1965-12-20 1970-07-03

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008012704A2 (en) * 2006-07-28 2008-01-31 Ercio Miguel Nema Hydropneumatic regenerative actuator
WO2008012704A3 (en) * 2006-07-28 2008-04-24 Ercio Miguel Nema Hydropneumatic regenerative actuator
WO2016091358A1 (en) * 2014-12-13 2016-06-16 Wabco Gmbh & Linear drive, in particular for moving a gearshift lever in a transmission
CN107387482A (en) * 2017-07-14 2017-11-24 太仓优捷特机械有限公司 A kind of mold injection oil hydraulic cylinder

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