JPH046A - Device for supplying contaminant mixed oil - Google Patents
Device for supplying contaminant mixed oilInfo
- Publication number
- JPH046A JPH046A JP10265190A JP10265190A JPH046A JP H046 A JPH046 A JP H046A JP 10265190 A JP10265190 A JP 10265190A JP 10265190 A JP10265190 A JP 10265190A JP H046 A JPH046 A JP H046A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- contaminant
- mixed oil
- switching valve
- circuit
- 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
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、油圧機器の性能試験、耐久試験等を行う際に
用いられる汚染物質混合油供給装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a contaminant-mixed oil supply device used when performing performance tests, durability tests, etc. of hydraulic equipment.
［従来の技術］
建設機械をはじめ各種機械装置、車両等に使用される油
圧機器の性能や耐久性を確認する場合、清浄油を用いた
各種性能試験、耐久試験の他に、油中にあらかじめ金属
摩耗粉や油の劣化成分等を混入させた汚染物質混合油を
用いて、試験対象とする油圧機器がどの程度まで汚染物
質混合油に耐えられるかその限界を確認する試験も行っ
ている。[Conventional technology] When checking the performance and durability of hydraulic equipment used in construction machinery, various mechanical devices, vehicles, etc., in addition to various performance tests and durability tests using clean oil, Tests are also conducted using contaminant-mixed oil mixed with metal wear particles and oil deterioration components to confirm the limits to which hydraulic equipment under test can withstand contaminant-mixed oil.
汚染物質混合油による限界試験を行う場合、従来は第２
図に示すように、油圧ポンプから供試アクチュエータを
経て油タンクに至る回路を設け、油タンク内の油にあら
かじめ金属摩耗粉や油の劣化成分等を所定量混入し、こ
れを上路内に循環させて試験を行っている。When performing limit tests using contaminant-mixed oil, conventionally the second
As shown in the figure, a circuit is established from the hydraulic pump to the oil tank via the test actuator, and a predetermined amount of metal wear particles and oil deterioration components are mixed into the oil in the oil tank, and this is circulated into the upper passage. We are conducting a test.
［発明が解決しようとする課題］
しかしながら上記構造の試験装置においては、汚染物質
混合油が回路全体を循環するため、試験装置として用い
られている油圧ポンプの性能が低下し、供試アクチュエ
ータに所定の油量、油圧を加えることができなくなりた
り、油圧ポンプの故障による試験中断等を起こしやすい
。また油圧ポンプの摩耗が促進されてその摩耗粉が汚染
物質混合油に混入し、供試アクチュエータに対する汚染
物質混入量が変化するため、試験精度が低下するという
問題点がある。[Problems to be Solved by the Invention] However, in the test device having the above structure, the oil mixed with contaminants circulates throughout the circuit, so the performance of the hydraulic pump used as the test device decreases, and It is easy to be unable to apply oil volume or hydraulic pressure, or the test may be interrupted due to failure of the hydraulic pump. Furthermore, there is a problem that the wear of the hydraulic pump is accelerated and the abrasion powder is mixed into the contaminant-mixed oil, changing the amount of contaminants mixed into the test actuator, resulting in a decrease in test accuracy.
本発明は上記従来の問題点に着目し、汚染物質混合油供
給装置自体は汚染物質混合油の影響を受けることなく、
供試アクチュエータにのみ汚染物質混合油を供給するこ
とができるような汚染物質混合油供給装置を提供するこ
とを目的とする。The present invention focuses on the above conventional problems, and the contaminant-mixed oil supply device itself is not affected by the contaminant-mixed oil.
The object of the present invention is to provide a contaminant-mixed oil supply device that can supply contaminant-mixed oil only to a test actuator.
［課題を解決するための手段］
上記目的を達成するために本発明に係る汚染物質混合油
供給装置は、油圧ポンプから切換弁を経て一側の汚染物
質混合油槽に至る清浄油回路と、この汚染物質混合油槽
から切換弁を経て供試アクチュエータに至る汚染物質混
合油回路と、供試アクチュエータから切換弁を経て他側
の汚染物質混合油槽に至る汚染物質混合油回路と、他側
の汚染物質混合油槽から切換弁を経て清浄油タンクに至
る清浄油回路とによって構成され、前記汚染物質混合油
槽は、清浄油と汚染物質混合油とを気密分離するフリー
ピストンによって仕切られ、切換弁は汚染物質混合油槽
と切換弁間の各回路の流れの方向を切り換える機能を備
える構成とした。[Means for Solving the Problems] In order to achieve the above object, the pollutant mixed oil supply device according to the present invention includes a clean oil circuit that runs from a hydraulic pump to a pollutant mixed oil tank on one side via a switching valve; A contaminant mixed oil circuit from the contaminant mixed oil tank to the test actuator via the switching valve, a contaminant mixed oil circuit from the test actuator to the pollutant mixed oil tank on the other side via the switching valve, and a pollutant mixed oil circuit on the other side A clean oil circuit runs from the mixed oil tank to the clean oil tank via a switching valve, and the pollutant mixed oil tank is partitioned off by a free piston that airtightly separates the clean oil and the pollutant mixed oil, and the switching valve The structure has a function to switch the flow direction of each circuit between the mixing oil tank and the switching valve.
［作用コ
上記構成によれは、汚染物質混合油供給装置の油圧ポン
プと供試アクチュエータとを結ぶ油圧回路内に２個の汚
染物質混合油槽を設け、この汚染物質混合油槽をフリー
ピストンで気密分離したので、油圧ポンプから吐出され
る清浄油てピストンを駆動することにより、汚染物質混
合油槽の一方に充填した汚染物質混合油が供試アクチュ
エータに供給される。そして回路中に設けた切換弁の操
作により２個の汚染物質混合油槽から汚染物質混合油が
交互に連続的に供試アクチュエータに供給されるととも
に、油圧ポンプには常に清浄油が流れるので試験装置の
汚染物質混合油による性能劣化を防止することができる
。[Function] According to the above configuration, two pollutant mixed oil tanks are provided in the hydraulic circuit connecting the hydraulic pump of the pollutant mixed oil supply device and the test actuator, and these pollutant mixed oil tanks are airtightly separated by a free piston. Therefore, by driving the piston with clean oil discharged from the hydraulic pump, the pollutant mixed oil filled in one of the pollutant mixed oil tanks was supplied to the test actuator. Then, by operating a switching valve installed in the circuit, contaminant-mixed oil is alternately and continuously supplied to the test actuator from the two contaminant-mixed oil tanks, and clean oil always flows to the hydraulic pump, so the test equipment It is possible to prevent performance deterioration due to contaminant-mixed oil.
［実施例コ
以下に本発明に係る汚染物質混合油供給装置の実施例に
ついて、図面を参照して詳細に説明する。[Example 7] Examples of the contaminant-mixed oil supply device according to the present invention will be described in detail below with reference to the drawings.
第１図において、油圧ポンプ１と切換弁２とは清浄油回
路３で、また切換弁２と一側の汚染物質混合油槽４の左
端とは清浄油回路５てそれぞれ接続され、汚染物質混合
油槽４の右端と切換弁２とは汚染物質混合油回路６で、
また切換弁２と供試アクチュエータ７の大口ボートとは
汚染物質混合油回路８でそれぞれ接続されている。供試
アクチュエータフの出口ボートと切換弁２とは汚染物質
混合油回路９て、また切換弁２と他側の汚染物質混合油
槽１０の右端とは汚染物質混合油回路１１て接続され、
汚染物質混合油槽１０の左端と切換弁２とは清浄油回路
１２て、また切換弁２と清浄油タンク１３とは清浄油回
路１４てそれぞれ接続されている。In FIG. 1, the hydraulic pump 1 and the switching valve 2 are connected to each other by a clean oil circuit 3, and the switching valve 2 and the left end of the pollutant mixing oil tank 4 on one side are connected to each other by a clean oil circuit 5. The right end of 4 and the switching valve 2 are the pollutant mixed oil circuit 6,
Further, the switching valve 2 and the large port boat of the test actuator 7 are connected through a contaminant mixed oil circuit 8, respectively. The outlet boat of the test actuator tough and the switching valve 2 are connected to the pollutant mixing oil circuit 9, and the switching valve 2 and the right end of the pollutant mixing oil tank 10 on the other side are connected to the pollutant mixing oil circuit 11.
The left end of the contaminant mixed oil tank 10 and the switching valve 2 are connected to each other through a clean oil circuit 12, and the switching valve 2 and the clean oil tank 13 are connected to each other through a clean oil circuit 14.
切換弁２は８ボ一ト２位置切換弁で、手動により切り換
えられる。また、汚染物質混合油槽４゜１０はいずれも
清浄油と汚染物質混合油とを気密分離するフリーピスト
ン４ａ、１０ａを備えたシリンダで、汚染物質混合油槽
４．１０の一側に清浄油、他側に汚染物質混合油が充填
されている。The switching valve 2 is an 8-point, 2-position switching valve that can be switched manually. Further, each of the pollutant mixed oil tanks 4.10 is a cylinder equipped with a free piston 4a, 10a that airtightly separates clean oil and pollutant mixed oil. The side is filled with contaminant mixed oil.
次に上記汚染物質混合油供給装置の作動について説明す
る。供試アクチュエータフに回路８，９を接続した後、
油圧ポンプ１を駆動する。油圧ポンプ１から吐出された
清浄油は回路３、切換弁２、回路５を経て汚染物質混合
油槽４に流入し、フリーピストン４ａを第１図において
右方に押す。これにより汚染物質混合油槽４内の汚染物
質混合油が押し出され、回路６、切換弁２、回路８を経
て供試アクチュエータ７内に流入する。この汚染物質混
合油は供試アクチュエータ７から回路９、切換弁２、回
路１１を経て汚染物質混合油槽１０の右側に流入し、そ
の油圧でフリーピストン１０ａは左方に押され、汚染物
質混合油槽１０内の清浄油は回路１２、切換弁２、回路
１４を経て清浄油タンク１３に戻る。Next, the operation of the pollutant mixed oil supply device will be explained. After connecting circuits 8 and 9 to the test actuator tough,
The hydraulic pump 1 is driven. The clean oil discharged from the hydraulic pump 1 flows into the contaminant mixing oil tank 4 through the circuit 3, the switching valve 2, and the circuit 5, and pushes the free piston 4a to the right in FIG. 1. As a result, the pollutant-mixed oil in the pollutant-mixed oil tank 4 is pushed out and flows into the test actuator 7 via the circuit 6, the switching valve 2, and the circuit 8. This pollutant mixed oil flows from the test actuator 7 through the circuit 9, the switching valve 2, and the circuit 11 to the right side of the pollutant mixed oil tank 10, and the free piston 10a is pushed to the left by the oil pressure, and the pollutant mixed oil tank Clean oil in 10 returns to clean oil tank 13 via circuit 12, switching valve 2, and circuit 14.
汚染物質混合油槽４のフリーピストン４ａがストローク
エンドに達したとき、切換弁２を手動操作して切り換え
ると、油圧ポンプ１から吐出された清浄油は回路３、切
換弁２、回路１２を経て汚染物質混合油槽１０の左側に
流入し、フリーピストン１０ａを右方に押す。これによ
り汚染物質混合油槽１０内の汚染物質混合油が押し出さ
れ、回路１１、切換弁２、回路８を経て供試アクチュエ
ータ７内に流入する。この汚染物質混合油は供試アクチ
ュエータ７から回路９、切換弁２、回路６を経て汚染物
質混合油槽４の右側に流入し、その油圧でフリーピスト
ン４ａは左方に押され、汚染物質混合油槽４内の清浄油
は回路５、切換弁２、回路１４を経て清浄油タンク１３
に戻る。When the free piston 4a of the pollutant mixing oil tank 4 reaches the stroke end, when the switching valve 2 is manually operated and switched, the clean oil discharged from the hydraulic pump 1 passes through the circuit 3, the switching valve 2, and the circuit 12, and is contaminated. It flows into the left side of the substance mixing oil tank 10 and pushes the free piston 10a to the right. As a result, the pollutant-mixed oil in the pollutant-mixed oil tank 10 is pushed out and flows into the test actuator 7 via the circuit 11, the switching valve 2, and the circuit 8. This contaminant-mixed oil flows from the test actuator 7 through the circuit 9, the switching valve 2, and the circuit 6 to the right side of the contaminant-mixed oil tank 4, and the free piston 4a is pushed to the left by the oil pressure, and the contaminant-mixed oil tank The clean oil in 4 passes through circuit 5, switching valve 2, and circuit 14 to clean oil tank 13.
Return to
汚染物質混合油槽１０のフリーピストン１０ａがストロ
ークエンドに達すると、再度切換弁２を手動操作して切
り換え、最初の状態に戻す。以下同じ作動を繰り返すこ
とにより、供試アクチュエータには絶えず所定濃度の汚
染物質混合油が供給され、汚染物質混合油による限界試
験を円滑に行うことができる。When the free piston 10a of the contaminant-mixing oil tank 10 reaches the stroke end, the switching valve 2 is manually operated and switched again to return to the initial state. By repeating the same operation thereafter, contaminant-mixed oil of a predetermined concentration is constantly supplied to the test actuator, and a limit test using contaminant-mixed oil can be carried out smoothly.
供試アクチュエータが、たとえば油圧シリンダのように
油の流れを切り換える必要がある場合は、切換弁２と供
試アクチュエータ７とを結ぶ回路８゜９内に更に切換弁
を追加設置し、一定時間ことにこれを切り換え操作すれ
ばよい。If the test actuator requires switching the flow of oil, such as a hydraulic cylinder, an additional switching valve is installed in the circuit 8゜9 connecting the switching valve 2 and the test actuator 7, and the switching valve is operated for a certain period of time. All you have to do is switch this to .
［発明の効果コ
以上説明したように本発明によれば、フリーピストンで
気密分離した汚染物質混合油槽を２個設置し、供試アク
チュエータと前記２個の汚染物質混合油槽との間に配設
された回路のみに汚染物質混合油を流通させる構成とし
たので、汚染物質混合油供給装置に用いられる油圧ポン
プには常に清浄油が流れることになる。従って、油圧ポ
ンプは汚染物質混合油の影響を受けず、従来から問題と
なっている汚染物質混合油による油圧ポンプの性能、耐
久性の低下あるいは故障による試験の中断を防止するこ
とができる。[Effects of the Invention] As explained above, according to the present invention, two contaminant mixing oil tanks are installed that are airtightly separated by a free piston, and are arranged between the test actuator and the two contaminant mixing oil tanks. Since the contaminant-mixed oil is configured to flow only through the circuit where the contaminant-mixed oil is supplied, clean oil always flows through the hydraulic pump used in the contaminant-mixed oil supply device. Therefore, the hydraulic pump is not affected by the contaminant-mixed oil, and it is possible to prevent the performance and durability of the hydraulic pump from deteriorating due to the contaminant-mixed oil, which has been a problem in the past, or from interrupting the test due to failure.
これに伴って油圧ポンプの摩耗等による汚染物質混合油
の汚染物質成分の変動も防止することができ、試験精度
が向上する。Accordingly, it is possible to prevent fluctuations in the contaminant components of the contaminant-mixed oil due to wear of the hydraulic pump, etc., and the test accuracy is improved.
第１図は実施例に係る汚染物質混合油供給装置の油圧回
路図、第２図は従来の技術による汚染物質混合油供給装
置の油圧回路図である。
１・・・・・・油圧ポンプ・
２・・・・・・切換弁
３、 ５． １２． １４・・・・・・清浄油回路４．
１０・・・・・・汚染物質混合油槽４ａ、１０ａ・・・
・・・フリーピストン６、 ８． ９． １１・・・・
・・汚染物質混合油回路７・・・・・・供試アクチュエ
ータ
１３・・・・・・漬ン争油タンク
第１図
特許出願人 株式会社小松製作所
第２図FIG. 1 is a hydraulic circuit diagram of a contaminant-mixed oil supply device according to an embodiment, and FIG. 2 is a hydraulic circuit diagram of a contaminant-mixed oil supply device according to the prior art. 1...Hydraulic pump 2...Switching valve 3, 5. 12. 14...Clean oil circuit 4.
10... Contaminant mixed oil tank 4a, 10a...
...Free piston 6, 8. 9. 11...
...Contaminant mixed oil circuit 7...Test actuator 13...Immersed oil tank Fig. 1 Patent applicant Komatsu Ltd. Fig. 2
Claims (1)
槽４に至る清浄油回路３、５と、この汚染物質混合油槽
４から切換弁２を経て供試アクチュエータ７に至る汚染
物質混合油回路６、８と、供試アクチュエータ７から切
換弁２を経て他側の汚染物質混合油槽１０に至る汚染物
質混合油回路９、１１と、他側の汚染物質混合油槽１０
から切換弁２を経て清浄油タンク１３に至る清浄油回路
１２、１４とによって構成され、前記汚染物質混合油槽
４、１０は、清浄油と汚染物質混合油とを気密分離する
フリーピストン４ａ、１０ａによって仕切られ、切換弁
２は汚染物質混合油槽４、１０と切換弁２間の各回路５
、６、１１、１２の流れの方向を切り換える機能を備え
ていることを特徴とする汚染物質混合油供給装置。Clean oil circuits 3 and 5 from the hydraulic pump 1 to the pollutant mixing oil tank 4 on one side via the switching valve 2; and a pollutant mixing oil circuit from the pollutant mixing oil tank 4 to the test actuator 7 via the switching valve 2. 6, 8, contaminant mixing oil circuits 9, 11 leading from the test actuator 7 via the switching valve 2 to the contaminant mixing oil tank 10 on the other side, and the contaminant mixing oil tank 10 on the other side.
The contaminant-mixed oil tanks 4, 10 are composed of free pistons 4a, 10a that airtightly separate the clean oil and the contaminant-mixed oil. The switching valve 2 is connected to each circuit 5 between the pollutant mixing oil tank 4, 10 and the switching valve 2.
, 6, 11, and 12. A contaminant-mixed oil supply device characterized by having a function of switching the flow direction of the oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10265190A JPH046A (en) | 1990-04-17 | 1990-04-17 | Device for supplying contaminant mixed oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10265190A JPH046A (en) | 1990-04-17 | 1990-04-17 | Device for supplying contaminant mixed oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH046A true JPH046A (en) | 1992-01-06 |
Family
ID=14333151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10265190A Pending JPH046A (en) | 1990-04-17 | 1990-04-17 | Device for supplying contaminant mixed oil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH046A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6316801B1 (en) * | 1998-03-04 | 2001-11-13 | Nec Corporation | Semiconductor device having capacitive element structure and multilevel interconnection structure and method of fabricating the same |
| US6404024B1 (en) * | 1999-08-30 | 2002-06-11 | Mitsubishi Denki Kabushiki Kaisha | Semiconductor device |
| US6638803B2 (en) | 2000-01-18 | 2003-10-28 | Mitsubishi Denki Kabushiki Kaisha | Semiconductor device and method for manufacturing the same |
| US6653657B2 (en) * | 1999-12-10 | 2003-11-25 | Semoconductor Energy Laboratory Co., Ltd. | Semiconductor device and a method of manufacturing the same |
| US6667453B1 (en) * | 1999-12-20 | 2003-12-23 | Mitsubishi Denki Kabushiki Kaisha | Electric discharge machining method and apparatus with control of rocking function parameters |
| CN109973467A (en) * | 2018-11-16 | 2019-07-05 | 湖北江山重工有限责任公司 | Mobile hydraulic cleaning systems and pressure experimental device |
| RU196141U1 (en) * | 2019-11-18 | 2020-02-18 | Акционерное общество "Научно-производственный центр "Полюс" | Three-phase digital sine wave generator |
-
1990
- 1990-04-17 JP JP10265190A patent/JPH046A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6316801B1 (en) * | 1998-03-04 | 2001-11-13 | Nec Corporation | Semiconductor device having capacitive element structure and multilevel interconnection structure and method of fabricating the same |
| US6404024B1 (en) * | 1999-08-30 | 2002-06-11 | Mitsubishi Denki Kabushiki Kaisha | Semiconductor device |
| US6653657B2 (en) * | 1999-12-10 | 2003-11-25 | Semoconductor Energy Laboratory Co., Ltd. | Semiconductor device and a method of manufacturing the same |
| US6667453B1 (en) * | 1999-12-20 | 2003-12-23 | Mitsubishi Denki Kabushiki Kaisha | Electric discharge machining method and apparatus with control of rocking function parameters |
| US6638803B2 (en) | 2000-01-18 | 2003-10-28 | Mitsubishi Denki Kabushiki Kaisha | Semiconductor device and method for manufacturing the same |
| CN109973467A (en) * | 2018-11-16 | 2019-07-05 | 湖北江山重工有限责任公司 | Mobile hydraulic cleaning systems and pressure experimental device |
| RU196141U1 (en) * | 2019-11-18 | 2020-02-18 | Акционерное общество "Научно-производственный центр "Полюс" | Three-phase digital sine wave generator |
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