JPH0719201A - High hydraulic pressure generator - Google Patents
High hydraulic pressure generatorInfo
- Publication number
- JPH0719201A JPH0719201A JP5191945A JP19194593A JPH0719201A JP H0719201 A JPH0719201 A JP H0719201A JP 5191945 A JP5191945 A JP 5191945A JP 19194593 A JP19194593 A JP 19194593A JP H0719201 A JPH0719201 A JP H0719201A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- pressure
- chamber
- liquid
- hydraulic pressure
- 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
Landscapes
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は高液圧発生装置に関し、
例えば、宇宙用無重力実験装置や地上用試験装置におい
て高圧物性の計測や結晶成長に用いられる小型セルの加
圧源として利用できる。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high hydraulic pressure generator,
For example, it can be used as a pressurizing source for a small cell used for measuring high-pressure physical properties and crystal growth in a space-free weightless experimental device and a ground test device.
【０００２】[0002]
【従来の技術】高液圧の発生装置として、ピストンの変
位によってシリンダ内の液体を加圧するブーストポンプ
が一般に用いられている。従来、そのピストンの変位は
手動やインバータを介し駆動されるモータを用いてなさ
れていた。2. Description of the Related Art As a high hydraulic pressure generator, a boost pump that pressurizes liquid in a cylinder by displacement of a piston is generally used. Conventionally, the displacement of the piston has been performed manually or by using a motor driven through an inverter.
【０００３】[0003]
【発明が解決しようとする課題】ブーストポンプのピス
トンを手動により変位させる場合、液圧は脈動するため
正確に制御するのが困難である。そのピストンをモータ
により変位させる場合、モータの回転を減速器と運動変
換機構を介し直線運動に変換する必要があるため、装置
が大型化して小型ロケット等のスペースの制限された場
所に組み込むのに適さず、そのモータは高トルクを発生
する必要があるのでモータやインバータから多くの電気
的ノイズが発生して周囲の他装置に悪影響を与え、さら
に機械的なバックラッシュが存在するため液圧のヒステ
リシスが大きくなって液圧を正確に制御できない。When the piston of the boost pump is manually displaced, the hydraulic pressure is pulsating and it is difficult to control it accurately. When displacing the piston with a motor, it is necessary to convert the rotation of the motor into a linear motion via a speed reducer and a motion conversion mechanism, so the device becomes large and it is necessary to install it in a space-limited place such as a small rocket. Not suitable, because the motor needs to generate a high torque, a lot of electrical noise is generated from the motor and the inverter, which adversely affects other peripheral devices. In addition, mechanical backlash causes the hydraulic pressure to increase. The hysteresis becomes large and the hydraulic pressure cannot be controlled accurately.
【０００４】本発明は、上記従来技術の問題を解決する
ことのできる高液圧発生装置を提供することを目的とす
る。It is an object of the present invention to provide a high hydraulic pressure generator capable of solving the above problems of the prior art.
【０００５】[0005]
【課題を解決するための手段】本発明の高液圧発生装置
は、ガス圧に応じ変位するピストンによってシリンダ内
の液体を加圧するブーストポンプと、そのガス圧を電気
信号に応じ制御する手段とを備える。A high hydraulic pressure generator according to the present invention comprises a boost pump for pressurizing a liquid in a cylinder by a piston which is displaced according to a gas pressure, and a means for controlling the gas pressure according to an electric signal. Equipped with.
【０００６】[0006]
【作用】本発明の構成によれば、ブーストポンプのピス
トンはガス圧に応じ変位するので、モータと減速器と運
動変換機構とにより変位させる場合に比べ小型化でき、
モータやインバータが不要で電気的ノイズを除去でき、
機械的バックラッシュがない。そのガス圧は電気信号に
応じ制御されるので、そのピストンにより加圧される液
体の圧力を電気信号に応じ制御することができる。According to the structure of the present invention, since the piston of the boost pump is displaced according to the gas pressure, it can be downsized as compared with the case where it is displaced by the motor, the speed reducer and the motion converting mechanism.
No need for a motor or inverter, electrical noise can be removed,
There is no mechanical backlash. Since the gas pressure is controlled according to the electric signal, the pressure of the liquid pressurized by the piston can be controlled according to the electric signal.
【０００７】[0007]
【実施例】以下、図面を参照して本発明の実施例を説明
する。Embodiments of the present invention will be described below with reference to the drawings.
【０００８】図１に示す高液圧発生装置１のブーストポ
ンプ２は、シリンダ６と、このシリンダ６の内部をガス
室６ａと液室６ｂとに区画するピストン７とを有し、そ
のピストン７のガス室６ａ内での受圧面積は液室６ｂ内
での受圧面積よりも大きくされている。そのガス室６ａ
は、気蓄器５に第１手動開閉バルブ１０、第２手動開閉
バルブ１１、調圧弁１２および第１ソレノイドバルブ１
３を介し接続されている。その第１手動開閉バルブ１０
と第２手動開閉バルブ１１との間に、キャップ１４によ
り開閉可能なガス充填ポート１５が設けられ、そのガス
充填ポート１５に窒素等の高圧ガスの供給源が配管を介
し着脱可能に接続される。これにより、第１手動開閉バ
ルブ１０を開き、第２手動開閉バルブ１１を閉鎖し、ガ
ス充填ポート１５から気蓄器５に高圧ガスを供給し、こ
の供給後にキャップ１４を閉じることで、気蓄器５に高
圧ガスが蓄積される。この気蓄器５に蓄積された高圧ガ
スは、第２手動開閉バルブ１１が開かれることで調圧弁
１２に至って一定圧力に調圧され、第１ソレノイドバル
ブ１３が開かれることでガス室６ａに至る。このガス室
６ａ内のガス圧に応じピストン７が変位することで、液
室６ｂに充填口１９から充填される液体が加圧され、そ
の液室６ｂは配管１６を介し供試体１７に接続され、供
試体１７の加圧がなされる。The boost pump 2 of the high hydraulic pressure generator 1 shown in FIG. 1 has a cylinder 6 and a piston 7 which divides the inside of the cylinder 6 into a gas chamber 6a and a liquid chamber 6b. The pressure receiving area in the gas chamber 6a is larger than the pressure receiving area in the liquid chamber 6b. The gas chamber 6a
Includes a first manual open / close valve 10, a second manual open / close valve 11, a pressure regulating valve 12 and a first solenoid valve 1 in the gas accumulator 5.
3 are connected. The first manual open / close valve 10
And a second manual opening / closing valve 11 are provided with a gas filling port 15 that can be opened and closed by a cap 14, and a supply source of high-pressure gas such as nitrogen is detachably connected to the gas filling port 15 via a pipe. . As a result, the first manual opening / closing valve 10 is opened, the second manual opening / closing valve 11 is closed, high-pressure gas is supplied from the gas filling port 15 to the gas accumulator 5, and after this supply, the cap 14 is closed. High-pressure gas is accumulated in the container 5. The high-pressure gas accumulated in the gas accumulator 5 reaches the pressure regulating valve 12 when the second manual opening / closing valve 11 is opened and is regulated to a constant pressure, and is opened in the gas chamber 6a when the first solenoid valve 13 is opened. Reach By displacing the piston 7 according to the gas pressure in the gas chamber 6a, the liquid filled in the liquid chamber 6b from the filling port 19 is pressurized, and the liquid chamber 6b is connected to the sample 17 via the pipe 16. The specimen 17 is pressurized.
【０００９】そのガス室６ａに第２ソレノイドバルブ２
０が接続され、前記第１ソレノイドバルブ１３と第２ソ
レノイドバルブ２０の各ソレノイドはコネクタ２１を介
しユニットコントローラ２２に接続され、このユニット
コントローラ２２に、ガス室６ａのガス圧測定用センサ
ー２３と液室６ｂの液圧測定用センサー２４とがコネク
タ２５を介し接続されている。その第２ソレノイドバル
ブ２０が開かれることでガス室６ａからガスが放出さ
れ、ガス室６ａのガス圧は低下する。そのユニットコン
トローラ２２は、外部から入力される指令信号と各セン
サー２３、２４からの入力信号とに基づき、予め記憶さ
れたプログラムに従い電気信号を出力するコンピュータ
により構成でき、その電気信号により各ソレノイドバル
ブ１３、２０を開閉してガス室６ａのガス圧を変化させ
て液室６ｂの液圧値や液圧変化速度を制御する。なお、
ガス室６ａは安全弁３０に接続され、この安全弁３０は
ガス室６ａの内圧が過大になると開くものとされてい
る。The second solenoid valve 2 is provided in the gas chamber 6a.
0 is connected, and each solenoid of the first solenoid valve 13 and the second solenoid valve 20 is connected to a unit controller 22 via a connector 21, and the unit controller 22 is connected to a gas pressure measuring sensor 23 of the gas chamber 6a and a liquid. A fluid pressure measuring sensor 24 in the chamber 6b is connected via a connector 25. When the second solenoid valve 20 is opened, gas is released from the gas chamber 6a, and the gas pressure in the gas chamber 6a drops. The unit controller 22 can be configured by a computer that outputs an electric signal according to a program stored in advance based on a command signal input from the outside and an input signal from each of the sensors 23 and 24, and each solenoid valve is generated by the electric signal. 13 and 20 are opened and closed to change the gas pressure in the gas chamber 6a to control the liquid pressure value and the liquid pressure change speed in the liquid chamber 6b. In addition,
The gas chamber 6a is connected to a safety valve 30, and the safety valve 30 is supposed to open when the internal pressure of the gas chamber 6a becomes excessive.
【００１０】上記構成によれば、ブーストポンプ２のピ
ストン７はガス圧に応じ変位するので、モータと減速器
と運動変換機構とにより変位させる場合に比べ小型化で
き、モータやインバータが不要で電気的ノイズを除去で
き、機械的バックラッシュがない。そのガス圧は電気信
号に応じ制御されるので、そのピストン７により加圧さ
れる液体の圧力を電気信号に応じ正確に全自動で制御す
ることができる。また、上記高液圧発生装置１を小型ロ
ケットに搭載して無重力実験用の加圧源として用いる場
合、気蓄器５にガスを地上で充填することで大型の高圧
ガス供給源を小型ロケットに搭載する必要がない。ま
た、高液圧発生装置１が正常に作動するか否かのチェッ
クは、第１手動開閉バルブ１０を閉じると共に第２手動
開閉バルブ１１を開いてガス充填ポート１５から高圧ガ
スを供給することで行える。According to the above construction, the piston 7 of the boost pump 2 is displaced according to the gas pressure, so that the piston 7 can be downsized as compared with the case where it is displaced by the motor, the speed reducer, and the motion converting mechanism, and a motor and an inverter are not required and the electric power is reduced. Noise can be removed and there is no mechanical backlash. Since the gas pressure is controlled according to the electric signal, the pressure of the liquid pressurized by the piston 7 can be accurately and fully automatically controlled according to the electric signal. When the high hydraulic pressure generator 1 is mounted on a small rocket and used as a pressurizing source for weightlessness experiments, by filling the gas accumulator 5 with gas on the ground, a large high-pressure gas supply source can be converted into a small rocket. No need to install. In addition, to check whether the high hydraulic pressure generator 1 operates normally, the first manual opening / closing valve 10 is closed and the second manual opening / closing valve 11 is opened to supply high-pressure gas from the gas filling port 15. You can do it.
【００１１】図２は第２実施例を示し、上記実施例との
相違は、調圧弁１２と第１ソレノイドバルブ１３と第２
ソレノイドバルブ２０とに換えて電空変換器４０を用
い、この電空変換器４０によりユニットコントローラ２
２から出力される電気信号に応じガス室６ａのガス圧を
変化させて液室６ｂの液圧値や液圧変化速度を制御する
点にあり、他は上記実施例と同様で同一部分は同一符号
で示す。この第２実施例によれば液圧を滑らかに制御で
きるので、高液圧発生装置１の液圧出力を任意の関数形
とすることができる。FIG. 2 shows a second embodiment. The difference from the above embodiment is that the pressure regulating valve 12, the first solenoid valve 13 and the second embodiment are different.
An electropneumatic converter 40 is used instead of the solenoid valve 20, and the unit controller 2 is operated by the electropneumatic converter 40.
2 is that the gas pressure in the gas chamber 6a is changed according to the electric signal output from the control unit 2 to control the hydraulic pressure value and the hydraulic pressure change speed in the liquid chamber 6b. It shows with a code. According to the second embodiment, since the hydraulic pressure can be smoothly controlled, the hydraulic pressure output of the high hydraulic pressure generator 1 can be made into an arbitrary functional form.
【００１２】なお、本発明は上記実施例に限定されるも
のではない。The present invention is not limited to the above embodiment.
【００１３】[0013]
【発明の効果】本発明によれば、高液圧発生装置を小型
化し、電気ノイズを除去し、液圧を正確に制御すること
ができる。According to the present invention, the high hydraulic pressure generator can be downsized, the electric noise can be removed, and the hydraulic pressure can be accurately controlled.
【図１】本発明の第１実施例の高液圧発生装置の構成説
明図FIG. 1 is a structural explanatory view of a high hydraulic pressure generator according to a first embodiment of the present invention.
【図２】本発明の第２実施例の高液圧発生装置の構成説
明図FIG. 2 is a structural explanatory view of a high hydraulic pressure generator according to a second embodiment of the present invention.
２ ブーストポンプ ６ シリンダ ７ ピストン １３ 第１ソレノイドバルブ ２０ 第２ソレノイドバルブ ４０ 電空変換器 2 Boost pump 6 Cylinder 7 Piston 13 First solenoid valve 20 Second solenoid valve 40 Electro-pneumatic converter
───────────────────────────────────────────────────── フロントページの続き (72)発明者 井上 清毅 京都府京都市中京区西ノ京桑原町１番地株 式会社島津製作所三条工場内 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Kiyotake Inoue, Nishinokyo Kuwabara-cho, Nakagyo-ku, Kyoto, Kyoto Prefecture Shimazu Seisakujo Sanjo Factory
Claims (1)
シリンダ内の液体を加圧するブーストポンプと、そのガ
ス圧を電気信号に応じ制御する手段とを備える高液圧発
生装置。1. A high hydraulic pressure generator comprising: a boost pump for pressurizing a liquid in a cylinder by a piston that is displaced according to a gas pressure; and a means for controlling the gas pressure according to an electric signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5191945A JPH0719201A (en) | 1993-07-05 | 1993-07-05 | High hydraulic pressure generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5191945A JPH0719201A (en) | 1993-07-05 | 1993-07-05 | High hydraulic pressure generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0719201A true JPH0719201A (en) | 1995-01-20 |
Family
ID=16283079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5191945A Pending JPH0719201A (en) | 1993-07-05 | 1993-07-05 | High hydraulic pressure generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0719201A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6223434B1 (en) | 1997-04-02 | 2001-05-01 | Sango Co., Ltd. | Muffler and its manufacturing method |
| JP2008262306A (en) * | 2007-04-10 | 2008-10-30 | Sharp Corp | Layout adjustment device, layout adjustment method, layout adjustment program and recording medium |
| JP4854197B2 (en) * | 2002-09-17 | 2012-01-18 | エービー サイエックス エルエルシー | Flow control method and flow control device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55115603A (en) * | 1979-02-28 | 1980-09-05 | Saginomiya Seisakusho Inc | Pressure-compensation controlling system for electro- hydraulic servo pressurizing apparatus |
| JPS60122001U (en) * | 1984-01-25 | 1985-08-17 | 日産自動車株式会社 | Pressure booster |
-
1993
- 1993-07-05 JP JP5191945A patent/JPH0719201A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55115603A (en) * | 1979-02-28 | 1980-09-05 | Saginomiya Seisakusho Inc | Pressure-compensation controlling system for electro- hydraulic servo pressurizing apparatus |
| JPS60122001U (en) * | 1984-01-25 | 1985-08-17 | 日産自動車株式会社 | Pressure booster |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6223434B1 (en) | 1997-04-02 | 2001-05-01 | Sango Co., Ltd. | Muffler and its manufacturing method |
| JP4854197B2 (en) * | 2002-09-17 | 2012-01-18 | エービー サイエックス エルエルシー | Flow control method and flow control device |
| JP2008262306A (en) * | 2007-04-10 | 2008-10-30 | Sharp Corp | Layout adjustment device, layout adjustment method, layout adjustment program and recording medium |
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