JPS59175602A - Oil tank of tester for hydraulic apparatus - Google Patents
Oil tank of tester for hydraulic apparatusInfo
- Publication number
- JPS59175602A JPS59175602A JP58048708A JP4870883A JPS59175602A JP S59175602 A JPS59175602 A JP S59175602A JP 58048708 A JP58048708 A JP 58048708A JP 4870883 A JP4870883 A JP 4870883A JP S59175602 A JPS59175602 A JP S59175602A
- Authority
- JP
- Japan
- Prior art keywords
- air
- tank body
- pressure
- hydraulic
- oil
- 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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2210/00—Fluid
- F04C2210/26—Refrigerants with particular properties, e.g. HFC-134a
Abstract
Description
【発明の詳細な説明】
本発明は、油圧ポンプ、油圧モータ、油圧シリンダ、油
圧トランスミッション等の各種油圧機器の性能試験を行
う油圧機器試験機の油圧試験に供されるオイルを油圧ポ
ンプに供給するオイルタンクに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention supplies oil to a hydraulic pump for use in a hydraulic test of a hydraulic equipment testing machine that tests the performance of various hydraulic equipment such as a hydraulic pump, a hydraulic motor, a hydraulic cylinder, and a hydraulic transmission. Regarding the oil tank.
近年、建設機械の技術が向上するにつれて、高圧の油圧
機器が開発されている。ところで、油圧機器は、機械に
組込まれた様々な使用状態と同一の条件で性能確認のた
めの試験が行われる。その際、この油圧機器試験機には
、各種油圧機器の様々な使用状態と同一の条件ヲ笑現さ
せるため十分な圧力を有する試験用油圧が確保されなけ
ればならない。In recent years, as construction machinery technology has improved, high-pressure hydraulic equipment has been developed. Incidentally, hydraulic equipment is tested to confirm its performance under the same conditions as the various usage conditions in which it is incorporated into the machine. In this case, the hydraulic equipment testing machine must be equipped with test hydraulic pressure with sufficient pressure to achieve the same conditions as the various usage conditions of various hydraulic equipment.
この試験用油圧は油圧ポンプによって発生されるもので
あるが、従来、例えば建設機械のクレーンのように高圧
試験を必要とするものでは、十分に高圧な試験用油圧が
確保されないことがあり、正しい試験結果が得られない
ことがあった。この原因は、試験用油圧を発生させる油
圧ポンプの種類、構造などによって、次のような場合が
考えられる。This test hydraulic pressure is generated by a hydraulic pump, but in the past, for example, in equipment that requires high-pressure tests such as construction equipment cranes, a sufficiently high test hydraulic pressure may not be secured, and the correct Test results were sometimes not available. This may be caused by the following cases depending on the type and structure of the hydraulic pump that generates the test hydraulic pressure.
（１）元々油圧ポンプの吸込口に於ける真空′圧の発生
が／トさく、オイルの吸引力が小さい場合。(1) When the vacuum pressure at the suction port of the hydraulic pump is weak and the oil suction force is small.
（＋＋）油圧ポンプの吸込口に於ける真空圧の発生は太
きいが、ポンプの構造上、その吸込口が小さく、オイル
の流入が少ない場合。(++) Vacuum pressure is generated at the suction port of a hydraulic pump, but due to the structure of the pump, the suction port is small and there is little oil inflow.
（＊＊ｉ＞油圧ポンプのポンプ作用が高速で行われるた
め、オイルが流入する間がない場合。(**i> When the pumping action of the hydraulic pump is performed at high speed, there is no time for oil to flow in.
（１■）油圧ポンプに問題はないが、オイルタンクと接
続する吸込管か細くてオイルの流れが悪く、油圧ポンプ
に流入するオイル量が必要量確保されない場合。(1■) There is no problem with the hydraulic pump, but the suction pipe that connects to the oil tank is thin and the flow of oil is poor, and the required amount of oil cannot be secured to flow into the hydraulic pump.
（Ｖ）オイルの粘度が高く、オイルが流れにくい場合。(V) When the viscosity of the oil is high and it is difficult for the oil to flow.
本発明は、上述のような種々の条件下ＶＣする油圧ポン
プによっても、高圧の試験用油圧を発生させるべく改良
されたオイルタンク全提供するものである。The present invention provides an entire oil tank that has been improved so that high pressure test hydraulic pressure can be generated even by a hydraulic pump that performs VC under various conditions as described above.
上記目的を達成するために、本発明のオイルタンクは、
油圧ポンプの吸込管が接続されると共に、油圧機器試験
機の油圧試験に供されるオイルを内部に貯留するタンク
本体を密閉構造とし、このタンク本体内に圧力空気供給
源からの圧力空気全速り込む空気管路を設け、この空気
管路に、タンク本体に送られる圧力空気の圧力を調整す
る空気圧調整器と、タンク本体内を大気に開放し又はタ
ンク本体Ｐｌ圧力空気供給源に連通させるべく切換操作
される切換バルブと金設け、必要に応じて切換バルブを
切換えることによシ、タンク本体内に調圧された圧力空
気を供給できるように構成したものである。In order to achieve the above object, the oil tank of the present invention includes:
The tank body, to which the suction pipe of the hydraulic pump is connected and which stores the oil used for hydraulic pressure testing by the hydraulic equipment testing machine, has a sealed structure, and the tank body has a sealed structure. An air pressure regulator for adjusting the pressure of the pressurized air sent to the tank body is provided in the air pipeline, and an air pressure regulator for adjusting the pressure of the pressurized air sent to the tank body is provided, and an air pressure regulator for adjusting the pressure of the pressurized air sent to the tank body is provided, and the tank body Pl is connected to the pressure air supply source for opening the inside of the tank body to the atmosphere or communicating with the tank body Pl pressure air supply source. The tank is equipped with a switching valve and metal fittings, and is configured so that regulated pressure air can be supplied into the tank body by switching the switching valve as necessary.
以下、本発明を図面に示す一実施例にもとづいて説明す
る。The present invention will be described below based on an embodiment shown in the drawings.
図中（１）はタンク本体でアシ、このタンク本体（１）
は、密閉構造に構成され、その内部には油圧機器試験機
の油圧試験に供されるオイル（２）がその上部に空気室
（３）を形成して貯留される。このタンク本体（１）の
下部には、油圧ポンプ（４）の吸込管（５）が接続され
るようになっておシ、タンク本体（１）に接続された油
圧ポンプ（４）が駆動されると、そのポンプ作用により
吸込管（５）ヲ介してオイル（２）が吸引され、この吸
引されたオイルが油圧機器（図示しない〕／ｆ−泊
の試駿用番壬として供給される。また１図中（６）Ｆｉ
、。In the figure, (1) is the tank body, and this tank body (1)
has a sealed structure, and inside thereof, oil (2) to be subjected to hydraulic pressure testing by a hydraulic equipment testing machine is stored with an air chamber (3) formed above. A suction pipe (5) of a hydraulic pump (4) is connected to the lower part of the tank body (1), and the hydraulic pump (4) connected to the tank body (1) is driven. Then, oil (2) is sucked through the suction pipe (5) by the pumping action, and this sucked oil is supplied as a test flight bag for hydraulic equipment (not shown)/f-night. In addition, (6) Fi in Figure 1
,.
圧力空気供給源として例えばコンプレッサー（７）から
の圧力空気を前記タンク本体（１）内に送シ込む空気管
路である。この空気管路（６）の途中には、前記タンク
本体（１）に送られる圧力空気の圧力を調整する空気圧
調整器（８）が介装されて９る。また、前記空気管路（
６）の、空気圧調整器（８）とタンク本体（１）との間
には、タンク本体（１）円を大気に開放し又はタンク本
体（１）円を前記コンプレッサー（７）の吐出口に連通
させるべく切換操作される切換バルブ（９）が介装され
ている。すなわち、この切換バルブ（９）は、例えばブ
リーザθ■を備えた空圧用ンレノイドパルブ輪によって
構成されており、通常時に於ては、管路（６）はソレノ
イドバルブ（イ）によって遮断されて。This is an air conduit through which pressurized air from, for example, a compressor (7) as a pressurized air supply source is sent into the tank body (1). An air pressure regulator (8) is interposed in the middle of the air pipe (6) to adjust the pressure of the pressurized air sent to the tank body (1). In addition, the air pipe line (
6), between the air pressure regulator (8) and the tank body (1), the tank body (1) circle is opened to the atmosphere, or the tank body (1) circle is connected to the discharge port of the compressor (7). A switching valve (9) is interposed which is operated to switch to establish communication. That is, this switching valve (9) is constituted by, for example, a pneumatic solenoid valve ring equipped with a breather .theta., and under normal conditions, the pipe line (6) is shut off by the solenoid valve (a).
タンク本体（１） Ｉ’５の空気室（３）がブリーザ（
ロ）を介して大気に開放されていると共に、必要に応じ
てタンク本体（１）円に圧力空気を供給しようとすると
きには、ンレノイドノ々ルブ（７）のソレノイドに切換
操作信号を送ってソレノイドを動作させ、ブリーザ（ロ
）を閉塞させ、管路（６）ヲンレノイドノ々ルブ（転）
で連通させるようになっている。また、前記タンク本体
（１）には、夕／り本体（１） １７３の圧力が異常に
高くなつたとき、安全のために開放動作されて空気室（
３）の圧力空気を大気に逃がす安全弁（６）が設けられ
ている。なお、図中（至）は、油圧試験に供された戻り
オイル（ロ）を貯留する戻ジオイルタンクであシ、この
戻ジオイルα→は、ポンプｌ１ｌｌｆ９をモータ（ト）
で駆動することによって、フィルタσηでろ過されなが
ら戻り管路（至）を介してタンク本体（１）内に還流さ
れる。Tank body (1) The air chamber (3) of I'5 is the breather (
When supplying pressurized air to the tank body (1) as required, a switching operation signal is sent to the solenoid of the solenoid knob (7) to turn the solenoid on. Operate to close the breather (B) and close the pipe (6).
It is designed to communicate with The tank body (1) also has an air chamber (173) that is opened for safety when the pressure in the tank body (1) 173 becomes abnormally high.
A safety valve (6) is provided to release the pressurized air of 3) to the atmosphere. In addition, (to) in the figure is a return geo-oil tank that stores the return oil (b) that was used for the hydraulic test, and this return geo-oil α→ is used to connect the pump l1llf9 to the motor (g).
As a result, the water is returned to the tank body (1) through the return pipe (to) while being filtered by the filter ση.
上記のように構成されたオイルタンクを用いて各種油圧
機器の性能試験を行う操作を説明する。The operation of performing performance tests on various hydraulic equipment using the oil tank configured as described above will be explained.
まず、試験に供される油圧機器の試験油圧が、油圧ポン
プ（４）の発生する通常圧力で十分対応できる場合は、
管路（６） ′ｆｔソレノイドバルブ（ト）によって遮
断し、タンク本体（１）内の空気室（３）をブリーザ（
ロ）を介して大気に開放させた通常状態で、油圧ポンプ
（４）を駆動し、試験用油圧全発生させればよい。また
、試験に供される油圧機器が建設機械のクレーンのよう
な高圧試験を必要とし、その試験油圧が油圧ポンプ（４
）の発生する通常圧力で対応できない場合は、ソレノイ
ドパルプ（ト）に切換操作信号を送ってソレノイドを動
作させ、−ブリーザ（ロ）を閉塞させ、管路（６）全ソ
レノイドノ々ルブ（転）で連通させ、コンプレッサー（
７）からの圧力空気を空気正調、整容（８）を介してタ
ンク本体（１）内に送シ込み、タンク本体（１）内の圧
力を大気圧より所定だけ高くした状態で、油圧ポンプ（
４）を駆動し、試験用油圧を発生させればよい。なお、
こうして発生される試験用油圧の圧力調整は、空気圧調
整器（８）を操作してタンク本体（１）に送られる圧力
空気の圧力を調整し、タンク本体（１）内の圧力の大き
さを調整することによって行われる。すなわち、タンク
本体（１） ｌＦ３に加えられた加圧力は、油圧ポンプ
（４）の吸込管（５）に於けるオイル（２）の吸込み金
助けるので、タンク本体（１）円に於ける加圧力が大き
くなれば、それに応じて油圧ポンプ（４）によって発生
される試験用油圧を高圧にすることができるのである。First, if the test hydraulic pressure of the hydraulic equipment to be tested can be adequately supported by the normal pressure generated by the hydraulic pump (4),
Pipe line (6) 'ft is shut off by the solenoid valve (g) and the air chamber (3) inside the tank body (1) is connected to the breather (
The hydraulic pump (4) may be driven in the normal state where it is opened to the atmosphere via the pump (b) to generate the full amount of hydraulic pressure for the test. In addition, the hydraulic equipment to be tested requires high-pressure tests such as construction machinery cranes, and the test hydraulic pressure is a hydraulic pump (4
), if the normal pressure generated by ) and connect the compressor (
The pressurized air from 7) is sent into the tank body (1) through the air adjustment and conditioning (8), and the pressure inside the tank body (1) is raised to a predetermined amount higher than atmospheric pressure, and then the hydraulic pump (
4) to generate test hydraulic pressure. In addition,
To adjust the pressure of the test hydraulic pressure generated in this way, operate the air pressure regulator (8) to adjust the pressure of the pressurized air sent to the tank body (1), and adjust the magnitude of the pressure inside the tank body (1). This is done by adjusting. In other words, the pressurizing force applied to the tank body (1) 1F3 helps the suction of oil (2) into the suction pipe (5) of the hydraulic pump (4), so the pressure applied to the tank body (1) increases. If the pressure increases, the test hydraulic pressure generated by the hydraulic pump (4) can be increased accordingly.
以上説明したように、本発明オイルタンクは、油圧ポン
プの吸込管が接続されると共に、油圧機器試験機の油圧
試験に供されるオイルｔＰ３部に貯留するタンク本体を
密閉構造とし、このタンク本体内に圧力空気供給源から
の圧力空気を送ｐ込む空気管路を設け、この空気管路に
、タンク本体に送られる圧力空気の圧力全調整する空気
圧調整器と、タンク本体１’３に大気に開放し又はタン
ク本体内を圧力空気供給源に連通させるべく切換操ｒ「
される切換ノ々ルブとを設けたから、タンク本体内全大
気に開放させた通常状態で、油圧ポンプにオイルを供給
できると共に、切換バルブを切換えて、タンク本体内に
空気圧調整器で調圧された圧力空気を送９込み、油圧ポ
ンプによって発生させるべき高圧の試験用油圧の圧力に
応じて、タンク本体内を加圧することによって、種々な
条件下にある油圧ポンプに確実に高圧の試験用油圧全発
生させることができるのである。As explained above, the oil tank of the present invention has a sealed structure in which the tank body is connected to the suction pipe of the hydraulic pump and stores the oil in the tP3 section which is subjected to the hydraulic test of the hydraulic equipment testing machine. An air pipe line is provided inside the tank body 1'3 to send pressurized air from a pressure air supply source, and an air pressure regulator is installed in this air line to adjust the total pressure of the pressurized air sent to the tank body. A switching operation is carried out to open the tank body to a pressurized air supply source or to connect the tank body to a pressurized air supply source.
Since the switch valve is provided, oil can be supplied to the hydraulic pump in the normal state where the tank body is opened to the entire atmosphere, and the pressure inside the tank body can be regulated by the air pressure regulator by switching the switch valve. By supplying pressurized air 9 and pressurizing the tank body according to the pressure of the high-pressure test hydraulic pressure to be generated by the hydraulic pump, the high-pressure test hydraulic pressure is reliably supplied to the hydraulic pump under various conditions. It is possible to generate all of them.
図面は本発明の一実施例を示す系統図である。
（１）はタンク本体、（２）はオイル、（４）は油圧ポ
ンプ、（５）は吸込管、（６）は空気管路、（７）はコ
ンプレッサー（圧力空気供給源） 、（８）は空気圧調
整器、（９）は切換バルブ。The drawing is a system diagram showing one embodiment of the present invention. (1) is the tank body, (2) is the oil, (4) is the hydraulic pump, (5) is the suction pipe, (6) is the air pipe, (7) is the compressor (pressure air supply source), (8) is an air pressure regulator, and (9) is a switching valve.
Claims (1)
機の油圧試験に供されるオイルを内部に貯留する密閉構
造のタンク本体と、圧力空気供給源からの圧力空気を前
記タンク本体１’ｌＫ送シ込む空気管路と、この空気管
路に介装され前記タンク本体に送られる圧力空気の圧３
ｙｔ−調整する空気圧調整器と、前記空気管路に介装さ
れ前記タンク本体内を大気に開放し又はタンク本体内を
前記圧力空気供給源に連通させるべく切換操作される切
換バルブとを具備してなる油圧機器試験機用のオイルタ
ンク。A tank body is connected to a suction pipe of a hydraulic pump and has a sealed structure to store oil therein to be subjected to a hydraulic test of a hydraulic equipment testing machine, and the tank body 1'lK is connected to a tank body that has a sealed structure and stores oil therein to be used for a hydraulic pressure test using a hydraulic equipment testing machine. An air conduit to be injected, and the pressure 3 of the pressurized air interposed in this air conduit and sent to the tank body.
yt-adjusting air pressure regulator, and a switching valve that is interposed in the air pipe line and is operated to open the inside of the tank body to the atmosphere or to connect the inside of the tank body to the pressurized air supply source. Oil tank for hydraulic equipment testing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58048708A JPS59175602A (en) | 1983-03-25 | 1983-03-25 | Oil tank of tester for hydraulic apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58048708A JPS59175602A (en) | 1983-03-25 | 1983-03-25 | Oil tank of tester for hydraulic apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59175602A true JPS59175602A (en) | 1984-10-04 |
Family
ID=12810814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58048708A Pending JPS59175602A (en) | 1983-03-25 | 1983-03-25 | Oil tank of tester for hydraulic apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59175602A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192215A (en) * | 2010-03-18 | 2011-09-21 | 上海航新航宇机械技术有限公司 | Test system of airplane hydraulic power conversion device |
| CN105822627A (en) * | 2016-06-03 | 2016-08-03 | 南通纺都置业有限公司 | Torque testing device for hydraulic motor under different pressures |
| CN110805577A (en) * | 2019-11-26 | 2020-02-18 | 燕山大学 | Gas-liquid separation type constant-pressure oil tank and control method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57192601A (en) * | 1981-05-22 | 1982-11-26 | Hitachi Constr Mach Co Ltd | Pressure device of hydraulic oil tank |
-
1983
- 1983-03-25 JP JP58048708A patent/JPS59175602A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57192601A (en) * | 1981-05-22 | 1982-11-26 | Hitachi Constr Mach Co Ltd | Pressure device of hydraulic oil tank |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192215A (en) * | 2010-03-18 | 2011-09-21 | 上海航新航宇机械技术有限公司 | Test system of airplane hydraulic power conversion device |
| CN105822627A (en) * | 2016-06-03 | 2016-08-03 | 南通纺都置业有限公司 | Torque testing device for hydraulic motor under different pressures |
| CN110805577A (en) * | 2019-11-26 | 2020-02-18 | 燕山大学 | Gas-liquid separation type constant-pressure oil tank and control method |
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