JPS6156431B2 - - Google Patents
Info
- Publication number
- JPS6156431B2 JPS6156431B2 JP54038402A JP3840279A JPS6156431B2 JP S6156431 B2 JPS6156431 B2 JP S6156431B2 JP 54038402 A JP54038402 A JP 54038402A JP 3840279 A JP3840279 A JP 3840279A JP S6156431 B2 JPS6156431 B2 JP S6156431B2
- Authority
- JP
- Japan
- Prior art keywords
- port
- solenoid valve
- sudden stop
- valve
- solenoid
- 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.)
- Expired
Links
- 230000005284 excitation Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000005856 abnormality Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Description
【発明の詳細な説明】
本発明は水力機械の急停止装置に係り、特に安
全性を考慮して二重化した急停止装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sudden stop device for hydraulic machinery, and more particularly to a sudden stop device that is duplicated in consideration of safety.
一般に水力機械の急停止装置は電磁弁を閉動作
することにより、急停止弁シリンダー内の油圧を
排除して急停止弁を閉じ、機械的に調速機の配圧
弁を閉動作させる様に構成されており、この急停
止装置の二重化を図る場合には、前記電磁弁、急
停止弁、これらを結ぶ油圧配管および急停止弁か
ら調速機の配圧弁間の操作機構を、そつくり２組
備える構成が採られている。 In general, a sudden stop device for hydraulic machinery is configured so that by closing a solenoid valve, the hydraulic pressure in the sudden stop valve cylinder is removed, the sudden stop valve is closed, and the pressure distribution valve of the speed governor is mechanically closed. Therefore, when duplicating this sudden stop device, the solenoid valve, the sudden stop valve, the hydraulic piping that connects them, and the operating mechanism between the sudden stop valve and the pressure distribution valve of the speed governor must be fabricated in two sets. A configuration has been adopted to prepare for this.
しかし、この構成では調速機内に大きなスペー
スを占め、また構成そのものも複雑であり、二重
化にかかる費用は、かなり大きなものとなつてい
る。 However, this configuration occupies a large space within the speed governor, and the configuration itself is complicated, resulting in a considerable cost for duplication.
本発明は従来技術の性能をそこねることなし
に、簡素化、経済化された水力機械の急停止装置
を提供することを目的とする。 SUMMARY OF THE INVENTION An object of the present invention is to provide a quick stop device for hydraulic machinery that is simplified and economical without sacrificing the performance of the prior art.
以下、本発明の一実施例について第１図ないし
第６図を参照して説明する。この実施例において
は、ソレノイドコイルａを励磁すればポートP1又
はP2とポートA1又はA2とが通じると共に、ポー
トB1又はB2とポートT1又はT2とが通じ、励磁を
解けばスプリング力によりポートP1又はP2とポー
トB1又はB2とが通じると共に、ポートT1又はT2
とポートA1又はA2とが通じる様にオフセツトさ
れる同一構造の第１の電磁弁１と第２の電磁弁２
を設置し、第１の電磁弁１のポートP1には圧油
を、ポートT1は図示しない排油管に、ポートA1
は第２の電磁弁２のポートP2に各々接続し、ポー
トB1はプラグする。 Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 1 to 6. In this embodiment, when solenoid coil a is energized, port P 1 or P 2 and port A 1 or A 2 communicate with each other, and port B 1 or B 2 and port T 1 or T 2 communicate with each other. When released, port P 1 or P 2 and port B 1 or B 2 communicate with each other due to spring force, and port T 1 or T 2
A first solenoid valve 1 and a second solenoid valve 2 of the same structure are offset so that the port A1 or A2 communicate with each other.
The port P 1 of the first solenoid valve 1 is connected to pressure oil, the port T 1 is connected to an oil drain pipe (not shown), and the port A 1 is connected to an oil drain pipe (not shown).
are respectively connected to the port P 2 of the second solenoid valve 2, and the port B 1 is plugged.
第２の電磁弁２のポートA2は急停止弁シリン
ダ３に、ポートT2は図示しない排油管に各々接
続し、ポートB2は第１の電磁弁１と同様にプラ
グする。急停止弁プランジヤ４はシリンダ３内に
圧油が導入されればスプリング５に抗して上が
り、圧油が排除されれば、スプリング５の力にて
押し下げられ、この動作はレバ６によつて配圧弁
７のスプール８に伝達される。尚９ａ，９ｂは電
磁弁１，２のスプール、１０ａ，１０ｂは電磁弁
１，２のスプリング、１１はガバナスピーダであ
る。このガバナスピーダ１１は水力機械の回転速
度に応じて動作するもので、水力機械の回転が上
がれば下方に、回転が下がれば上方に動いてスプ
ール８を操作して油圧を切換えで配圧弁７を操作
させ、油圧を切換えて、水口操作サーボモータ１
２を動作させてガイドリング１３につながれた複
数枚の水口の案内羽根１４の開度を調節して水力
機械の回転速度を安定に保つものである。 The port A 2 of the second solenoid valve 2 is connected to the sudden stop valve cylinder 3, the port T 2 is connected to an oil drain pipe (not shown), and the port B 2 is plugged in the same way as the first solenoid valve 1. When pressure oil is introduced into the cylinder 3, the sudden stop valve plunger 4 rises against the spring 5, and when the pressure oil is removed, it is pushed down by the force of the spring 5. This operation is controlled by the lever 6. It is transmitted to the spool 8 of the pressure distribution valve 7. Note that 9a and 9b are spools of the solenoid valves 1 and 2, 10a and 10b are springs of the solenoid valves 1 and 2, and 11 is a governor speeder. This governor speeder 11 operates according to the rotational speed of the hydraulic machine, and moves downward when the rotation of the hydraulic machine increases, and upwards when the rotation decreases, and operates the spool 8 to change the hydraulic pressure and control the pressure distribution valve 7. Operate it, change the hydraulic pressure, and turn the water mouth operation servo motor 1.
2 is operated to adjust the opening degree of a plurality of water inlet guide vanes 14 connected to a guide ring 13 to keep the rotational speed of the hydraulic machine stable.
次に、以上のように構成された場合の急停止装
置の動作を説明する。第１図および第５図は水力
機械が正常に運転している状態であり、第２図お
よび第６図は急停止装置が働いた後の状態を示す
ものである。 Next, the operation of the sudden stop device configured as above will be explained. 1 and 5 show the hydraulic machine in normal operation, and FIGS. 2 and 6 show the state after the sudden stop device is activated.
水力機械が安定運転状態にあるときには、ガバ
ナスピーダ１１とこれにつながるスプール８およ
び配圧弁７は中立状態にあり、従つて水口操作サ
ーボモータ１２および案内羽根１４はある開度に
て安定状態にある。 When the hydraulic machine is in a stable operating state, the governor speeder 11, the spool 8 connected thereto, and the pressure distribution valve 7 are in a neutral state, and therefore the water inlet operating servo motor 12 and the guide vane 14 are in a stable state at a certain opening degree. .
今、水力機械に異常が生じ、急停止信号が発せ
られると、第１および第２の電磁弁１，２のソレ
ノイドコイルａの励磁が解かれ、スプール９ａ，
９ｂはそれぞれスプリング１０ａ，１０ｂによつ
て図面の左方に動く。すると第１の電磁弁１のポ
ートP1の圧油は遮断され、急停止弁シリンダ３の
圧油は第２の電磁弁２のポートT2から排出され
る。この結果、急停止弁プランジヤ４はスプリン
グ５によつて押し下げられ、レバ６がスプール８
を押し下げて、油圧を閉状態に切換えるので、配
圧弁７は下方へ動いて水口操作サーボモータ１２
の閉シリンダーへ圧油を送り、また開シリンダー
を排油に導くので、水口操作サーボモータ１２は
閉方向に動き案内羽根１４は全閉して水力機械を
停止する。 Now, when an abnormality occurs in the hydraulic machine and a sudden stop signal is issued, the solenoid coils a of the first and second solenoid valves 1 and 2 are de-energized, and the spools 9a,
9b is moved to the left in the drawing by springs 10a and 10b, respectively. Then, the pressure oil in the port P 1 of the first solenoid valve 1 is cut off, and the pressure oil in the sudden stop valve cylinder 3 is discharged from the port T 2 of the second solenoid valve 2 . As a result, the sudden stop valve plunger 4 is pushed down by the spring 5, and the lever 6 is pushed down by the spool 8.
is pressed down to switch the hydraulic pressure to the closed state, so the pressure distribution valve 7 moves downward and the water inlet operation servo motor 12
Pressure oil is sent to the closed cylinder of the hydraulic machine and the open cylinder is led to drain oil, so the water mouth operating servo motor 12 moves in the closing direction and the guide vane 14 is fully closed to stop the hydraulic machine.
次に、二重化の目的であるところの、第１の電
磁弁１あるいは第２の電磁弁２のどちらか一方
が、スプール９ａ或は９ｂの固着、又は電気回路
の故障による解磁不能等で動作しなかつた場合で
も急停止弁が急停止動作をすることを説明する。 Next, either the first solenoid valve 1 or the second solenoid valve 2, which is the purpose of duplication, becomes inoperable due to sticking of the spool 9a or 9b or inability to demagnetize due to a failure in the electric circuit. It will be explained that the sudden stop valve performs a sudden stop operation even if the machine does not do so.
第３図は第１の電磁弁１が停止動作をしなかつ
た場合を示す。第１の電磁弁１のポートP1からの
圧油は遮断されず、ポートA1から第２の電磁弁
２のポートP2へ通じているが、スプール９ｂによ
り遮断され、また急停止弁シリンダ３内の圧油は
第２の電磁弁２のポートA2からT2へ排出される
ので、急停止動作は何ら支障なく行なわれる。 FIG. 3 shows a case where the first solenoid valve 1 does not perform a stopping operation. The pressure oil from port P 1 of the first solenoid valve 1 is not shut off and is connected from port A 1 to port P 2 of the second solenoid valve 2, but it is shut off by the spool 9b, and the sudden stop valve cylinder Since the pressure oil in the second electromagnetic valve 2 is discharged from the port A 2 to T 2 of the second electromagnetic valve 2, the sudden stop operation can be performed without any problem.
第４図は第２の電磁弁２が停止動作をしなかつ
た場合を示す。この場合は急停止弁シリンダ３内
の圧油は、第１の電磁弁１のポートA1からポー
トT1へ排出され、これまた急停止動作は支障な
く行なわれる。 FIG. 4 shows a case where the second solenoid valve 2 does not perform a stopping operation. In this case, the pressure oil in the sudden stop valve cylinder 3 is discharged from the port A1 of the first solenoid valve 1 to the port T1 , and the sudden stop operation is also performed without any problem.
尚、本発明は上記し、かつ図面に示した実施例
のみに限定されるものではなく、その要旨を変更
しない範囲で、種々変形して実施できることは勿
論である。 It should be noted that the present invention is not limited to the embodiments described above and shown in the drawings, but can of course be implemented with various modifications without changing the gist thereof.
以上述べた如く、本発明によれば、電磁弁を２
個用いただけで、その給油回路と排油回路を適当
にすることによつて、装置の二重化による安全性
を保つことができるので、安価で信頼性の高い水
力機械の急停止装置が得られる。 As described above, according to the present invention, the solenoid valve is
Even if the device is used alone, safety can be maintained by duplicating the device by properly arranging the oil supply circuit and the oil drain circuit, so that an inexpensive and highly reliable sudden stop device for hydraulic machinery can be obtained.
第１図は本発明の水力機械の急停止装置の一実
施例の正常運転状態を示す系統断面図、第２図な
いし第４図はそのそれぞれ異なる急停止状態を示
す系統断面図、第５図および第６図は第１図およ
び第２図の場合のスプール８以降の具体的な構成
を示す説明図である。
１，２……電磁弁、３……急停止シリンダ、４
……急停止弁プランジヤ、５……スプリング、６
……レバ、７……配圧弁、８……スプール、９
ａ，９ｂ……スプール、１０ａ，１０ｂ……スプ
リング、１１……ガバーナスピーダ。
FIG. 1 is a system cross-sectional view showing a normal operating state of an embodiment of the sudden stop device for hydraulic machinery of the present invention, FIGS. 2 to 4 are system cross-sectional views showing different sudden stop states, and FIG. 6 is an explanatory diagram showing a specific configuration of the spool 8 and subsequent parts in the case of FIGS. 1 and 2. 1, 2...Solenoid valve, 3...Sudden stop cylinder, 4
...Sudden stop valve plunger, 5...Spring, 6
... Lever, 7 ... Pressure distribution valve, 8 ... Spool, 9
a, 9b... Spool, 10a, 10b... Spring, 11... Governor speeder.
Claims (1)
力機械の急停止装置において、ソレノイドコイル
ａを励磁すればポートP1又はP2とポートA1又は
A2とが通じると共に、ポートB1又はB2とポート
T1又はT2とが通じ、励磁を解けばスプリング力
によりポートP1又はP2とポートB1又はB2とが通
じると共に、ポートT1又はT2とポートA1又はA2
とが通じる様にオフセツトされる同一構造の第１
の電磁弁１と第２の電磁弁２を設置し、第１の電
磁弁１のポートP1には圧油を、ポートT1は排油
管に、ポートA1は第２の電磁弁２のポートP2に
各々接続し、ポートB1はプラグし、第２の電磁
弁２のポートA2は急停止弁シリンダ３に、ポー
トT2は排油管に各々接続し、ポートB2はプラグ
したことを特徴とする水力機械の急停止装置。1. In a sudden stop device for hydraulic machinery that switches the control circuit of a solenoid valve to close it, if solenoid coil a is energized, port P 1 or P 2 and port A 1 or
A 2 and port B 1 or B 2 and port
T 1 or T 2 is connected, and when the excitation is released, port P 1 or P 2 and port B 1 or B 2 are connected by spring force, and port T 1 or T 2 and port A 1 or A 2 are connected.
The first part of the same structure is offset so that the
A solenoid valve 1 and a second solenoid valve 2 are installed, and port P 1 of the first solenoid valve 1 is connected to pressure oil, port T 1 is connected to the oil drain pipe, and port A 1 is connected to the second solenoid valve 2. Port P 2 is connected to port P 2, port B 1 is plugged, port A 2 of the second solenoid valve 2 is connected to quick stop valve cylinder 3, port T 2 is connected to oil drain pipe, port B 2 is plugged. A sudden stop device for hydraulic machinery characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3840279A JPS55131579A (en) | 1979-04-02 | 1979-04-02 | Device for stopping hydraulic machine in emergency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3840279A JPS55131579A (en) | 1979-04-02 | 1979-04-02 | Device for stopping hydraulic machine in emergency |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55131579A JPS55131579A (en) | 1980-10-13 |
| JPS6156431B2 true JPS6156431B2 (en) | 1986-12-02 |
Family
ID=12524292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3840279A Granted JPS55131579A (en) | 1979-04-02 | 1979-04-02 | Device for stopping hydraulic machine in emergency |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55131579A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0519461Y2 (en) * | 1988-09-14 | 1993-05-21 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019026228A (en) * | 2017-08-04 | 2019-02-21 | 株式会社アドヴィックス | Brake control device of vehicle |
| CN107664130B (en) * | 2017-08-23 | 2020-04-21 | 武汉船用机械有限责任公司 | Hydraulic control valve group and hydraulic control valve system |
-
1979
- 1979-04-02 JP JP3840279A patent/JPS55131579A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0519461Y2 (en) * | 1988-09-14 | 1993-05-21 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55131579A (en) | 1980-10-13 |
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