JP2005248474A - Actuator operating circuit - Google Patents

Actuator operating circuit Download PDF

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JP2005248474A
JP2005248474A JP2004057635A JP2004057635A JP2005248474A JP 2005248474 A JP2005248474 A JP 2005248474A JP 2004057635 A JP2004057635 A JP 2004057635A JP 2004057635 A JP2004057635 A JP 2004057635A JP 2005248474 A JP2005248474 A JP 2005248474A
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actuator
valve
gate
piping
hydraulic
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Koji Shitami
広司 下見
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Hokoku Kogyo Co Ltd
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Hokoku Kogyo Co Ltd
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Priority to JP2004057635A priority Critical patent/JP2005248474A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an actuator operating circuit capable of surely operating an actuator even when a piping path connecting the actuator and a power source such as a pump is damaged. <P>SOLUTION: The actuator operating circuit is constituted by connecting main piping 14 and auxiliary piping 15 disposed in parallel with the main piping 14 to a hydraulic cylinder 10 (the actuator) operating a gate 1 in a derricking manner through a shuttle valve 16. Even when the main-piping 14 path making the hydraulic cylinder 10 and a hydraulic pump 26 communicate is damaged at a point BP, a reliability on the actuator operating circuit is improved because the cylinder 10 is supplied with pressure oil through the shuttle valve 16 from the auxiliary piping 15 and the cylinder 10 can be operated surely. The actuator operating circuit can be restored in a short time by utilizing the auxiliary piping 15. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、アクチュエータ作動回路に関し、特に、水門設備のゲートを開閉させるアクチュエータに適用されるアクチュエータ作動回路に関する。   The present invention relates to an actuator operation circuit, and more particularly to an actuator operation circuit applied to an actuator that opens and closes a gate of a sluice facility.

水門設備のゲートを開閉させる油圧シリンダー等のアクチュエータは、液圧を発生させるポンプ等の動力源と配管で連絡されている。そして、アクチュエータに接続する配管は、地形や構造物に合わせて自在に延長敷設してポンプ等の動力源に接続することができるため、遠隔地点や水中等の人手の及び難い場所でもアクチュエータ作動用の動力を得ることが可能である。
しかしながら、アクチュエータとポンプ等の動力源とを連絡する配管経路が損傷して、ポンプ等の動力源からアクチュエータへ液圧を供給することができなくなった場合には、アクチュエータを作動させることが困難となる問題があった。特に、配管の損傷部分が人手の及び難い場所（水中等）で発生した場合には、復旧作業に時間がかかるという問題があった。 An actuator such as a hydraulic cylinder that opens and closes the gate of the sluice gate is connected to a power source such as a pump that generates hydraulic pressure by piping. The piping connected to the actuator can be freely extended and connected to the power source such as a pump according to the terrain and structure, so it can be used for actuator operation even in remote places or underwater or other difficult places. It is possible to obtain the power of
However, if the piping path connecting the actuator and a power source such as a pump is damaged and it becomes impossible to supply hydraulic pressure from the power source such as a pump to the actuator, it is difficult to operate the actuator. There was a problem. In particular, when a damaged part of the piping occurs in a place where it is difficult to reach manually (such as underwater), there is a problem that it takes time for the recovery work.

本発明は、アクチュエータとポンプ等の動力源とを連絡する配管経路が損傷した場合でも、アクチュエータを確実に作動させることができるアクチュエータ作動回路を提供することを目的とする。   An object of the present invention is to provide an actuator operating circuit that can reliably operate an actuator even when a piping path that connects the actuator and a power source such as a pump is damaged.

上記課題を達成するために、請求項１に記載のアクチュエータ作動回路に係る発明は、液圧を利用して作動させるアクチュエータに、主配管と、該主配管と並列に配設した補助配管を、シャトル弁を介して接続したことを特徴とする。
また、上記課題を達成するために、請求項２に記載のアクチュエータ作動回路に係る発明は、請求項１に記載の発明において、アクチュエータの近傍にシャトル弁を配設したことを特徴とする。
さらに、上記課題を達成するために、請求項３に記載のアクチュエータ作動回路に係る発明は、請求項１または２に記載の発明において、シャトル弁は、弁室内の弁体の移動方向が鉛直方向となるように配設され、弁室の上部に主配管を、また、弁室の下部に補助配管を、それぞれ接続したことを特徴とする。
さらにまた、上記課題を達成するために、請求項４に記載のアクチュエータ作動回路に係る発明は、請求項１〜３のいずれかに記載の発明において、アクチュエータは、水門設備のゲートを開閉させる油圧シリンダであり、遠隔配置された油圧装置により作動させることを特徴とする。 In order to achieve the above-mentioned object, the invention according to the actuator operation circuit according to claim 1 is directed to an actuator that operates using hydraulic pressure, and a main pipe and an auxiliary pipe arranged in parallel with the main pipe, It is connected through a shuttle valve.
In order to achieve the above object, an invention relating to an actuator operating circuit according to claim 2 is characterized in that, in the invention according to claim 1, a shuttle valve is disposed in the vicinity of the actuator.
Further, in order to achieve the above object, the invention according to the actuator operating circuit according to claim 3 is the invention according to claim 1 or 2, wherein the shuttle valve has a vertical movement direction of the valve element in the valve chamber. The main piping is connected to the upper part of the valve chamber, and the auxiliary piping is connected to the lower part of the valve chamber.
Still further, in order to achieve the above object, an invention according to an actuator operation circuit according to claim 4 is the invention according to any one of claims 1 to 3, wherein the actuator is a hydraulic pressure that opens and closes a gate of a sluice facility. It is a cylinder and is operated by a remotely located hydraulic device.

以上説明したように、請求項１に記載のアクチュエータ作動回路に係る発明によれば、アクチュエータとポンプ等の動力源とを連絡する主配管経路が損傷した場合でも、シャトル弁を介して補助配管からアクチュエータに液圧を供給してアクチュエータを確実に作動させることができるため、アクチュエータ作動回路の信頼性を向上させることができる。また、アクチュエータとポンプ等の動力源とを連絡する主配管経路が損傷した場合でも、補助配管経路を利用してアクチュエータ作動回路を短時間で復旧させることができる。
また、請求項２に記載のアクチュエータ作動回路に係る発明によれば、アクチュエータの近傍にシャトル弁を配設したので、主配管のほぼ全経路を補助配管で代替することが可能となる。
さらに、請求項３に記載のアクチュエータ作動回路に係る発明によれば、弁室内の弁体の移動方向が鉛直方向となるようにシャトル弁を配設すると共に、弁室の上部に主配管を、また、弁室の下部に補助配管を、それぞれ接続したので、常時は、シャトル弁の弁体は重力により弁室の下方に位置して補助配管経路を閉鎖するため、シャトル弁の作動が安定して主配管経路とアクチュエータとを確実に連絡することができる。
さらにまた、請求項４に記載のアクチュエータ作動回路に係る発明によれば、水門設備のゲートを開閉させる油圧シリンダを確実に作動させることができるため、ゲートが操作不良に陥ることがなく、水門設備の保安性を向上させることが可能となる。 As described above, according to the actuator operating circuit of the first aspect, even if the main piping path connecting the actuator and a power source such as a pump is damaged, the auxiliary piping is connected via the shuttle valve. Since the actuator can be reliably operated by supplying hydraulic pressure to the actuator, the reliability of the actuator operating circuit can be improved. Further, even when the main piping path that connects the actuator and a power source such as a pump is damaged, the actuator operating circuit can be restored in a short time using the auxiliary piping path.
Further, according to the invention relating to the actuator operation circuit according to the second aspect, since the shuttle valve is disposed in the vicinity of the actuator, it is possible to substitute almost all the paths of the main pipe with the auxiliary pipe.
Further, according to the invention relating to the actuator operation circuit according to claim 3, the shuttle valve is disposed so that the moving direction of the valve body in the valve chamber is a vertical direction, and the main pipe is provided at the upper portion of the valve chamber, In addition, since the auxiliary piping is connected to the lower part of the valve chamber, the shuttle valve's valve element is always located below the valve chamber due to gravity and closes the auxiliary piping path, so the operation of the shuttle valve is stable. Thus, the main piping path and the actuator can be reliably communicated.
Furthermore, according to the invention relating to the actuator operation circuit according to claim 4, since the hydraulic cylinder for opening and closing the gate of the sluice facility can be reliably operated, the gate does not cause a malfunction, and the sluice facility It is possible to improve the security of the machine.

一般に、水門設備等の水中で使用する設備は、ゲート等を作動させるアクチュエータ（油圧シリンダ）に容易に近づくことができないことが多い。また、水門設備等の作動性が、治水や利水等の国民の生命財産に大きく影響するため、水門設備等の作動の確実性が求められている。さらに、ゲート等を作動させる場合には比較的大きな作動力を必要とするため、油圧装置等の液圧装置を水門設備等に用いることが多い。
本実施の形態では、水門設備のゲートを開閉させる油圧駆動システムに本発明の実施の形態に係るアクチュエータ作動回路を適用した例を図１及び図２に基づいて説明する。
図１及び図２は、水門設備のゲート１を開閉操作（起伏操作）させる油圧シリンダ（アクチュエータ）１０の作動回路として、本発明の実施の形態に係るアクチュエータ作動回路を適用した例を示すものである。
なお、本実施の形態では、水門設備のゲートを開閉させる油圧駆動システムに、本発明の実施の形態に係るアクチュエータ作動回路を適用する場合について説明するが、本発明の実施の形態に係るアクチュエータ作動回路は、液圧等を利用して作動される流体作動回路の技術分野であれば、他の適宜の技術分野に適用することができることはもちろんである。 In general, facilities used underwater such as a sluice facility often cannot easily approach an actuator (hydraulic cylinder) that operates a gate or the like. In addition, since the operability of sluice facilities and the like greatly affects the lives of people such as flood control and water use, certainty of operation of sluice facilities and the like is required. Further, when a gate or the like is operated, a relatively large operating force is required, so that a hydraulic device such as a hydraulic device is often used for a sluice facility or the like.
In the present embodiment, an example in which the actuator operation circuit according to the embodiment of the present invention is applied to a hydraulic drive system that opens and closes a gate of a sluice facility will be described with reference to FIGS. 1 and 2.
1 and 2 show an example in which the actuator operating circuit according to the embodiment of the present invention is applied as an operating circuit of a hydraulic cylinder (actuator) 10 for opening / closing (raising / lowering) the gate 1 of a sluice facility. is there.
In the present embodiment, a case where the actuator operation circuit according to the embodiment of the present invention is applied to a hydraulic drive system that opens and closes the gate of the sluice facility will be described. However, the actuator operation according to the embodiment of the present invention Of course, the circuit can be applied to other appropriate technical fields as long as it is a technical field of a fluid operation circuit operated by using hydraulic pressure or the like.

図１及び図２に示すように、水門装置のゲート１は、その下端が、河床７に固定された軸受５に軸４を介して回動自在（起伏自在）に支承されている。ゲート１の上端にスポイラー２が、また、ゲート１の下端にシールゴム６が、それぞれ取り付けられている。
また、ゲート１の背面には凹曲面３が形成されており、この凹曲面３に、後述する油圧シリンダ１０のシリンダロッド１２の先端部に取り付けたローラ１３が当接される。そして、ゲート１を起伏操作する場合には、油圧装置２０からの圧油を油圧シリンダ１０に供給することにより、シリンダロッド１２を伸縮させて、シリンダロッド１２の先端部に取り付けたローラ１３を凹曲面３で案内させながら、ゲート１の背面を支承してゲート１を起伏操作する。なお、ゲート１は、倒伏時には、河床７に形成したピット部に収容されるような形状に形成されている。 As shown in FIGS. 1 and 2, the gate 1 of the sluice device is supported at its lower end by a bearing 5 fixed to the river bed 7 so as to be rotatable (can be raised and lowered) via a shaft 4. A spoiler 2 is attached to the upper end of the gate 1, and a seal rubber 6 is attached to the lower end of the gate 1.
Further, a concave curved surface 3 is formed on the back surface of the gate 1, and a roller 13 attached to a distal end portion of a cylinder rod 12 of a hydraulic cylinder 10 described later is brought into contact with the concave curved surface 3. When raising and lowering the gate 1, the cylinder rod 12 is expanded and contracted by supplying the hydraulic oil from the hydraulic device 20 to the hydraulic cylinder 10, and the roller 13 attached to the tip of the cylinder rod 12 is recessed. While guiding the curved surface 3, the back surface of the gate 1 is supported and the gate 1 is raised and lowered. In addition, the gate 1 is formed in the shape accommodated in the pit part formed in the riverbed 7 at the time of lodging.

ゲート１を開閉する推力を発生する油圧シリンダ１０は、シリンダ１１部分が河床７のピット部に埋設され、シリンダロッド１２の伸縮方向がゲート１の背面に形成した凹曲部３を指向するように設定されている。本実施の形態では、油圧シリンダ１０は単動式油圧シリンダであり、シリンダ１１の底部に形成したポート（図示省略）に、シャトル弁１６からの配管が接続されており、油圧装置２０の油圧力とゲート１に作用する水流方向の水圧力とをバランスさせてゲート１を自動的に起伏動作させるようにしている。なお、シリンダ１１内に、シリンダロッド１２を伸長方向に付勢するスプリングを内蔵させてゲート１を起立方向に付勢するようにしてもよい。   The hydraulic cylinder 10 that generates thrust to open and close the gate 1 is such that the cylinder 11 portion is embedded in the pit portion of the river bed 7 and the expansion / contraction direction of the cylinder rod 12 is directed to the concave curved portion 3 formed on the back surface of the gate 1. It is set. In the present embodiment, the hydraulic cylinder 10 is a single-acting hydraulic cylinder, and a pipe from the shuttle valve 16 is connected to a port (not shown) formed at the bottom of the cylinder 11 so that the hydraulic pressure of the hydraulic device 20 is increased. The gate 1 is automatically raised and lowered by balancing the water pressure in the direction of water flow acting on the gate 1. A spring that urges the cylinder rod 12 in the extending direction may be incorporated in the cylinder 11 to urge the gate 1 in the standing direction.

シャトル弁１６は、油圧シリンダ１０のシリンダ１１に近接させて河床７のピット部内に埋設されている。ここで、シャトル弁１６は、シャトル弁１６の弁室１７内での弁体１８の移動方向が鉛直方向と一致するように配置されている。そして、弁室１８の上部に主配管１１が、また、弁室１８の下部に補助配管１５が、それぞれ接続されている。また、シャトル弁１６は、弁室１７内での弁体１８の移動方向が鉛直方向と一致するように配置されているため、常時はシャトル弁１６の弁体１８は重力により常に弁室１７の下方に位置し、補助配管１５の経路を閉止している。   The shuttle valve 16 is embedded in the pit portion of the river bed 7 in the vicinity of the cylinder 11 of the hydraulic cylinder 10. Here, the shuttle valve 16 is arranged so that the moving direction of the valve body 18 in the valve chamber 17 of the shuttle valve 16 coincides with the vertical direction. The main pipe 11 is connected to the upper part of the valve chamber 18, and the auxiliary pipe 15 is connected to the lower part of the valve chamber 18. Further, since the shuttle valve 16 is arranged so that the moving direction of the valve body 18 in the valve chamber 17 coincides with the vertical direction, the valve body 18 of the shuttle valve 16 is always in the valve chamber 17 due to gravity. Located below, the path of the auxiliary pipe 15 is closed.

主配管１４及び補助配管１５は、油圧シリンダ１０に近接して設けられたシャトル弁１６の弁室１７の上下部にそれぞれ接続された後、ゲート１の設置箇所から離して配置されたゲート操作室（図示省略）の油圧装置２０まで延長して敷設されている。
油圧装置２０内では、主配管１４は主操作弁２１を介して、また、補助配管１５は補助操作弁２２を介して、それぞれチェック弁２３及び油圧ポンプ２６に接続されている。また、主配管１４は主操作弁２１を介して、補助配管１５は補助操作弁２２を介して、それぞれ流量調整弁２４、操作弁２５及びそれに続くオイルタンク２８に接続されている。なお、符号２７は、油圧ポンプ２６を駆動するモータを示す。 The main piping 14 and the auxiliary piping 15 are connected to the upper and lower portions of the valve chamber 17 of the shuttle valve 16 provided in the vicinity of the hydraulic cylinder 10, respectively, and are then separated from the installation location of the gate 1. It extends to the hydraulic device 20 (not shown).
In the hydraulic apparatus 20, the main pipe 14 is connected to the check valve 23 and the hydraulic pump 26 via the main operation valve 21, and the auxiliary pipe 15 is connected to the check valve 23 and the hydraulic pump 26, respectively. The main pipe 14 is connected to the flow control valve 24, the operation valve 25, and the subsequent oil tank 28 via the main operation valve 21 and the auxiliary pipe 15 via the auxiliary operation valve 22, respectively. Reference numeral 27 denotes a motor that drives the hydraulic pump 26.

次に、本実施の形態に係るアクチュエータ作動回路の作用を、通常の作動状態と主配管が損傷した場合の作動状態にわけて説明する。
（１）通常の作動状態（図１）
図１は通常時にゲート１を起立させた状態を示している。すなわち、油圧ポンプ２６から開状態の主操作弁２１及びシャトル弁１６を介して油圧シリンダ１０に圧油を供給して、ゲート１を起立操作する。この状態では、油圧ポンプ２６から、チェック弁２３及び開状態の主操作弁２１を介して、シャトル弁１６の弁室１７の上部に圧油が供給され、その後油圧シリンダ１０のシリンダ１１内の油圧力が上昇することによりシリンダロッド１２が伸長し、シリンダロッド１２の上端に装着したローラ１３がゲート１の背面に形成した凹曲部３に沿って移動してゲート１を起立操作する。
また、図１の状態からゲート１を倒伏させる場合は、操作弁２５を開き、流量調整弁２４を介して油圧シリンダ１０のシリンダ１１内の油をオイルタンク２８に戻すことによりゲート１は倒伏操作される。この時、流量調節弁２４を流通する油量を調整することにより、ゲート１の倒伏速度を調節することができる。
なお、主配管１４を介してゲート１の起伏操作をしている場合は、補助配管１５は、シャトル弁１６と補助操作弁２２により油圧装置２０の油圧ポンプ２６の圧力供給ラインから切り離されている。
また、万一シャトル弁１６が誤動作して、弁体１８が弁室１７の上部に移動して、主配管１４からのポートが塞がれた場合には、補助操作弁２２を開いて補助配管１５、補助操作弁２２、流量調整弁２４、操作弁２５を介して、油圧シリンダ１０内の圧油をオイルタンク２８に戻流させてゲート１を倒伏させることができる。 Next, the operation of the actuator operation circuit according to the present embodiment will be described by dividing it into a normal operation state and an operation state when the main pipe is damaged.
(1) Normal operating state (Fig. 1)
FIG. 1 shows a state in which the gate 1 is erected at the normal time. That is, the hydraulic oil is supplied from the hydraulic pump 26 to the hydraulic cylinder 10 through the main operation valve 21 and the shuttle valve 16 that are opened, and the gate 1 is operated upright. In this state, the hydraulic oil is supplied from the hydraulic pump 26 to the upper portion of the valve chamber 17 of the shuttle valve 16 via the check valve 23 and the opened main operation valve 21, and then the oil in the cylinder 11 of the hydraulic cylinder 10. As the pressure rises, the cylinder rod 12 extends, and the roller 13 attached to the upper end of the cylinder rod 12 moves along the concave curved portion 3 formed on the back surface of the gate 1 to erect the gate 1.
When the gate 1 is to be laid down from the state shown in FIG. 1, the gate 1 is laid down by opening the operation valve 25 and returning the oil in the cylinder 11 of the hydraulic cylinder 10 to the oil tank 28 via the flow rate adjusting valve 24. Is done. At this time, the lodging speed of the gate 1 can be adjusted by adjusting the amount of oil flowing through the flow rate control valve 24.
In addition, when the raising / lowering operation of the gate 1 is performed through the main pipe 14, the auxiliary pipe 15 is disconnected from the pressure supply line of the hydraulic pump 26 of the hydraulic device 20 by the shuttle valve 16 and the auxiliary operation valve 22. .
If the shuttle valve 16 malfunctions and the valve element 18 moves to the upper part of the valve chamber 17 and the port from the main pipe 14 is blocked, the auxiliary operation valve 22 is opened and the auxiliary pipe is opened. 15, the pressure oil in the hydraulic cylinder 10 can be returned to the oil tank 28 via the auxiliary operation valve 22, the flow rate adjustment valve 24, and the operation valve 25, and the gate 1 can be laid down.

（２）主配管が損傷した場合の作動状態（図２）
図２は主配管１４が河床７内で損傷して早急な復旧が困難な状態を示す。このような事態が発生した場合には、主操作弁２１を閉じて補助操作弁２２を開くことにより、補助配管１５を介してゲート１を起立操作することができる。
すなわち、図２に示すように、シャトル弁１６の近傍で主配管１４経路がＢＰの箇所で損傷した場合には、まず、主操作弁２１を閉じて主配管１４を油圧装置２０の圧力供給ラインから切り離す。その後、補助操作弁２２を開いて補助配管１５を油圧装置２０の圧力供給ラインに接続した後、油圧ポンプ２６から補助配管１５を介してシャトル弁１６に圧油を供給すると、弁室１７内の弁体１８が弁室１７の上方に移動して、油圧シリンダ１０に油圧ポンプ２６からの油圧力が供給されシリンダロッド１２の伸張動作によりゲート１が起立操作される。また、図１で説明したように、操作弁２５を開操作することによりゲート１を倒伏させることができる。
このように、本実施の形態によれば、河川内の配管の損傷事故によりゲートが操作不能状態に陥ることを確実に防止することができ、国民の生命財産の安全確保に寄与する効果は大きい。 (2) Operating condition when main piping is damaged (Fig. 2)
FIG. 2 shows a state where the main pipe 14 is damaged in the river bed 7 and it is difficult to quickly restore it. When such a situation occurs, the gate 1 can be operated upright via the auxiliary pipe 15 by closing the main operation valve 21 and opening the auxiliary operation valve 22.
That is, as shown in FIG. 2, when the main pipe 14 path is damaged near the shuttle valve 16 at the BP location, first, the main operation valve 21 is closed and the main pipe 14 is connected to the pressure supply line of the hydraulic device 20. Disconnect from. After that, after opening the auxiliary operation valve 22 and connecting the auxiliary pipe 15 to the pressure supply line of the hydraulic apparatus 20, when pressure oil is supplied from the hydraulic pump 26 to the shuttle valve 16 via the auxiliary pipe 15, The valve body 18 moves above the valve chamber 17, the hydraulic pressure from the hydraulic pump 26 is supplied to the hydraulic cylinder 10, and the gate 1 is operated upright by the extension operation of the cylinder rod 12. As described with reference to FIG. 1, the gate 1 can be laid down by opening the operation valve 25.
As described above, according to the present embodiment, it is possible to reliably prevent the gate from being inoperable due to an accident of damage to the piping in the river, and the effect of contributing to ensuring the safety of people's life property is great. .

本発明の実施の形態に係るアクチュエータ作動回路を適用した水門装置を示す図であり、主配管及びシャトル弁を介して油圧シリンダ（アクチュエータ）を作動させてゲートを起立操作している図である。It is a figure which shows the sluice device to which the actuator operation circuit which concerns on embodiment of this invention is applied, and is the figure which operates the hydraulic cylinder (actuator) via main piping and a shuttle valve, and raises the gate. 主配管経路が損傷した場合に、補助配管及びシャトル弁を介して油圧シリンダ（アクチュエータ）を作動させてゲートを起立操作している図である。When the main piping path is damaged, the hydraulic cylinder (actuator) is operated via the auxiliary piping and the shuttle valve to raise the gate.

符号の説明Explanation of symbols

１；ゲート、２；スポイラー、３；凹曲面、４；軸、５；軸受、６；シールゴム、７；河床、１０；油圧シリンダ（アクチュエータ）、１１；シリンダ、１２；シリンダロッド、１３；ローラ、１４；主配管、１５；補助配管、１６；シャトル弁、１７；弁室、１８；弁体、２０；油圧装置、２１；主操作弁、２２；補助操作弁、２３；チェック弁、２４；流量調整弁、２５；操作弁、２６；油圧ポンプ、２７；モータ、２８；オイルタンク、ＢＰ；主配管損傷部。
DESCRIPTION OF SYMBOLS 1; Gate, 2; Spoiler, 3; Concave curved surface, 4; Shaft, 5; Bearing, 6; Seal rubber, 7; River bed, 10; Hydraulic cylinder (actuator), 11: Cylinder, 12: Cylinder rod, 13; 14; Main piping, 15; Auxiliary piping, 16; Shuttle valve, 17; Valve chamber, 18; Valve body, 20; Hydraulic device, 21; Main operation valve, 22; Auxiliary operation valve, 23: Check valve, 24; Control valve, 25; operation valve, 26; hydraulic pump, 27; motor, 28; oil tank, BP;

Claims (4)

液圧を利用して作動させるアクチュエータに、主配管と、該主配管と並列に配設した補助配管を、シャトル弁を介して接続したことを特徴とするアクチュエータ作動回路。   An actuator operating circuit characterized in that a main pipe and an auxiliary pipe arranged in parallel with the main pipe are connected via a shuttle valve to an actuator that is operated using hydraulic pressure. 前記アクチュエータの近傍に前記シャトル弁を配設したことを特徴とする請求項１に記載のアクチュエータ作動回路。   The actuator operating circuit according to claim 1, wherein the shuttle valve is disposed in the vicinity of the actuator. 前記シャトル弁は、弁室内の弁体の移動方向が鉛直方向となるように配設され、前記弁室の上部に前記主配管を、また、前記弁室の下部に前記補助配管を、それぞれ接続したことを特徴とする請求項１または２に記載のアクチュエータ作動回路。   The shuttle valve is arranged so that the moving direction of the valve body in the valve chamber is a vertical direction, and the main pipe is connected to the upper part of the valve chamber, and the auxiliary pipe is connected to the lower part of the valve chamber. The actuator operation circuit according to claim 1, wherein the actuator operation circuit is provided. 前記アクチュエータは、水門設備のゲートを開閉させる油圧シリンダであり、遠隔配置された油圧装置により作動させることを特徴とする請求項１〜３のいずれかに記載のアクチュエータ作動回路。
The actuator operating circuit according to any one of claims 1 to 3, wherein the actuator is a hydraulic cylinder that opens and closes a gate of a sluice facility, and is operated by a remotely disposed hydraulic device.
JP2004057635A 2004-03-02 2004-03-02 Actuator operating circuit Pending JP2005248474A (en)

Priority Applications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108277782A (en) * 2018-01-24 2018-07-13 乔为民 A kind of turnover panel door gear

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH074321Y2 (en) * 1988-02-05 1995-02-01 日立建機株式会社 Actuator drive circuit
JPH08109939A (en) * 1994-10-13 1996-04-30 Mitsubishi Heavy Ind Ltd Hydraulic damper
JPH102986A (en) * 1996-06-14 1998-01-06 Toshiba Corp Inspection and repair device of reactor
JP2003049453A (en) * 2001-08-07 2003-02-21 Shin Caterpillar Mitsubishi Ltd Hydraulic circuit of construction machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH074321Y2 (en) * 1988-02-05 1995-02-01 日立建機株式会社 Actuator drive circuit
JPH08109939A (en) * 1994-10-13 1996-04-30 Mitsubishi Heavy Ind Ltd Hydraulic damper
JPH102986A (en) * 1996-06-14 1998-01-06 Toshiba Corp Inspection and repair device of reactor
JP2003049453A (en) * 2001-08-07 2003-02-21 Shin Caterpillar Mitsubishi Ltd Hydraulic circuit of construction machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108277782A (en) * 2018-01-24 2018-07-13 乔为民 A kind of turnover panel door gear

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