JPH0826344B2 - Fine Impurity Removal System for Hydraulic Oil of Construction Machinery and Civil Engineering Machinery - Google Patents
Fine Impurity Removal System for Hydraulic Oil of Construction Machinery and Civil Engineering MachineryInfo
- Publication number
- JPH0826344B2 JPH0826344B2 JP2418339A JP41833990A JPH0826344B2 JP H0826344 B2 JPH0826344 B2 JP H0826344B2 JP 2418339 A JP2418339 A JP 2418339A JP 41833990 A JP41833990 A JP 41833990A JP H0826344 B2 JPH0826344 B2 JP H0826344B2
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic oil
- impurities
- oil
- operating
- civil engineering
- 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 - Lifetime
Links
Description
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【産業上の利用分野】本発明は、建設機械、土木機械、
輸送機械等の各種作動機器の作動油の微細不純物除去シ
ステムに関する。The present invention relates to a construction machine, a civil engineering machine,
The present invention relates to a system for removing fine impurities from hydraulic oil of various operating devices such as transportation machines.
【０００２】[0002]
【従来の技術】従来、建設機械、土木機械、輸送機械等
の各種の作動機器は、その作動機構部分を作動するため
に油圧システムが広く用いられている。このような油圧
システムに使用される作動油は、機器の製作段階、使用
段階において不純物が混入して汚染して来ると共に、補
給、交換のために供給される新しい作動油自体にも不純
物が混入している為、ＮＡＳ等級で「８」級以下の作動
油を常に各作動機構部分に供給することは困難であっ
た。2. Description of the Related Art Conventionally, a hydraulic system has been widely used to actuate an actuating mechanism of various actuating machines such as construction machines, civil engineering machines, and transportation machines. The hydraulic fluid used in such hydraulic systems is contaminated with impurities during the production and use stages of the equipment, and the new hydraulic fluid itself supplied for replenishment and replacement also contains impurities. Therefore, it was difficult to constantly supply the operating oil of NAS grade "8" or less to each operating mechanism.
【０００３】作動油に混入して来る不純物は、金属摩耗
粉、微細な土砂や水或は空気中に存在するごみ、ほこり
等であり、一般に１ミクロン以上の粒径を有し、なかに
は１００ミクロン以上の粒径を有するものもある。一
方、作動油を制御する各種開閉弁の弁体と弁座面は通常
０．１ミクロン程度の精度に仕上げられている。このた
め、剛体の不純物が弁体と弁座との間に噛み込まれた場
合、最早開閉弁は正確な開弁状態を得ることは出来ず、
油漏れを招来するために、作動機器は作動不良となった
り、或いは出力低下をもたらしていた。Impurities mixed in the hydraulic oil are metal abrasion powder, fine earth and sand, water, dust present in the air, dust, etc., and generally have a particle size of 1 micron or more, among which 100 micron. Some have the above particle size. On the other hand, the valve bodies and valve seat surfaces of various on-off valves that control hydraulic oil are usually finished to an accuracy of about 0.1 micron. For this reason, when the impurities of the rigid body are caught between the valve body and the valve seat, the opening / closing valve can no longer obtain an accurate open state,
Due to oil leakage, the operating equipment has malfunctioned or output has decreased.
【０００４】従来においても、作動油の循環回路中に濾
過手段は設けられているが、５０〜１００ミクロン程度
の不純物を除去し得るにすぎず、しかも充分な濾過容量
並びに濾過精度を有していなかった為に、作動油は使用
に伴って汚染が進行し、一定期間使用後新しい作動油と
交換する必要があり、交換された作動油は廃棄処分もし
くが再生処理されていた。Conventionally, a filtering means is provided in the hydraulic oil circulation circuit, but it can only remove impurities of about 50 to 100 microns and has sufficient filtering capacity and filtering accuracy. Since it was not used, the operating oil was contaminated with use, and it was necessary to replace it with new operating oil after a certain period of use, and the replaced operating oil was either discarded or regenerated.
【０００５】しかしながら、このように廃棄されなけれ
ばならない程度まで作動油を使用すること自体が作動機
器の保全にとって有害であり、又、作動油の交換並びに
廃棄は貴重な資源の無駄であると共に、廃油による地球
環境の悪化をもたらすおそれもあった。However, the use of hydraulic oil to the extent that it must be discarded is harmful to the maintenance of operating equipment, and the replacement and disposal of hydraulic oil is a waste of valuable resources. There was also a risk that the waste oil would deteriorate the global environment.
【０００６】[0006]
【発明が解決しようとする課題】この発明は、機械制作
時より洗浄し切れずに残留していた金属粉、溶接スパッ
タ、切削粉や作動機器の作動に伴って作動油中に混入し
て来て作動に障害となる不純物を除去して、常に一定の
汚染度以下に作動油の清浄度を保持することにより、機
器の故障を未然に防止し、併せて作動油の交換、廃棄を
不要とせんとするものである。DISCLOSURE OF THE INVENTION The present invention has been proposed in which metal powder, welding spatter, cutting powder, and the like which have remained uncleaned from the time of machine fabrication and are mixed in hydraulic oil with the operation of operating equipment. By removing impurities that hinder operation, and keeping the cleanliness of the hydraulic oil below a certain degree of pollution at all times, equipment failures can be prevented, and it is not necessary to replace or discard the hydraulic oil. It is something to do.
【０００７】[0007]
【課題を解決するための手段】上記課題を解決するため
に、この発明が採った手段は、建設機械および土木機械
の各作動機構部分を作動させる作動油中の微細な不純物
を除去する方法であって、各作動機構部分から作動油タ
ンクに戻る低圧の戻り油の一部を機械の運転中常時バイ
パスさせて、多数の紙を円筒状に積層し作動油を紙の積
層間隙の一端から他端に流過させて流過中に不純物を紙
の繊維に付着させて除去するようにした不純物除去エレ
メントを収納した交換自在なカートリッジ容器を備える
除去装置に流入させ、前記不純物除去エレメントに通過
させて、作動油中に含有される１ミクロン以上の微細な
不純物を除去した後、該不純物を除去された清浄油を前
記作動油タンクに戻すようにしたことを特徴とする。Means for Solving the Problems In order to solve the above-mentioned problems, the means adopted by the present invention eliminates fine impurities in hydraulic oil for operating the respective operating mechanism parts of construction machines and civil engineering machines. This is a method of removing the low-pressure return oil that returns from each operating mechanism section to the hydraulic oil tank, and keeps it partly operating during machine operation.
A large number of papers are stacked in a cylindrical shape by passing, and operating oil is passed from one end to the other end of the paper stacking gap to remove impurities by adhering impurities to the paper fibers during the passing. Flow into a removal device with a replaceable cartridge container containing the element and pass through the impurity removal element
The fine particles of 1 micron or more contained in the hydraulic oil
After removing the impurities, clean the oil with the impurities removed.
It is characterized in that it is returned to the hydraulic oil tank .
【０００８】又、建設機械および土木機械の各作動機構
部分を作動させる作動油中の微細な不純物を除去する装
置であって、各作動機構部分から作動油タンクに戻る低
圧の戻り油のラインに接続したバイパス回路と、多数の
紙を円筒状に積層し作動油を紙の積層間隙の一端から他
端に流過させて流過中に不純物を紙の繊維に付着させて
除去するようにした不純物除去エレメントを収納した交
換自在なカートリッジ容器を備える除去装置とを有し、
除去装置の入口に前記バイパス回路を接続し、除去装置
の出口を作動油タンクに接続し、作動機器の運転中常時
戻り油の一部を戻り油ラインから取り出して前記不純物
除去エレメントに通過させて、作動油中に含有される１
ミクロン以上の微細な不純物を除去するようにしたこと
を特徴とする Further , each operating mechanism of construction machines and civil engineering machines
A device that removes minute impurities in the hydraulic oil that operates the parts.
And return to the hydraulic oil tank from each operating mechanism.
With a bypass circuit connected to the pressure return oil line,
Laminate the paper in a cylindrical shape and add hydraulic oil from one end of the paper laminating gap to the other.
Allow the impurities to adhere to the fibers of the paper while flowing through the edges.
A container containing an impurity removal element designed to be removed.
And a removing device having a replaceable cartridge container,
By connecting the bypass circuit to the inlet of the removing device,
The outlet of is connected to the hydraulic oil tank to keep the operating equipment running.
A part of the return oil is taken out from the return oil line to remove the impurities.
1 contained in hydraulic oil after passing through the removal element
Removal of fine impurities of micron or more
Characterized by
【０００９】[0009]
【作用】作動機器の作動機構部分からタンクに戻る作動
油の一部若しくはタンク内の作動油を取り出して不純物
除去装置に入れる。該不純物除去装置において、多数の
紙を積層した不純物除去エレメントにより、積層された
紙の層間隙を通過させて、作動油中の不純物を紙の繊維
に付着除去させる。これにより、作動油中に混入されて
くる不純物を除去し、作動油の清浄度を一定レベル以上
に維持することが出来る結果、作動油は汚染による交
換、廃棄が不要となる。このように作動油の清浄度を一
定レベル以上に維持することにより、作動油中に存在す
る不純物の数量が少なくなるため、弁と弁座の間に１ミ
クロン以上の不純物が噛み込まれて来る確率が著しく低
下し、実質的に不純物の噛み込みによる作動不良や圧力
低下をなくすことが出来る。The part of the hydraulic oil returning to the tank from the operating mechanism of the operating equipment or the hydraulic oil in the tank is taken out and put into the impurity removing device. In the impurity removing device, an impurity removing element in which a large number of papers are stacked is passed through the layer gaps of the stacked papers to remove impurities in the hydraulic oil from the fibers of the paper. As a result, impurities mixed in the hydraulic oil can be removed and the cleanliness of the hydraulic oil can be maintained at a certain level or higher. As a result, the hydraulic oil does not need to be replaced or discarded due to contamination. By maintaining the cleanliness of the hydraulic oil above a certain level in this way, the number of impurities present in the hydraulic oil is reduced, and impurities of 1 micron or more are trapped between the valve and the valve seat. The probability is remarkably reduced, and it is possible to substantially eliminate defective operation and pressure drop due to the inclusion of impurities.
【００１０】[0010]
【発明の効果】この発明によれば、作動油の清浄度を一
定レベル以上に維持することが出来るため、作動油の交
換や廃棄が不要となり、長期にわたって作動油を無交換
のまま使用することが出来ると共に、作動油の清浄度が
一定レベル以上に維持されているので、不純物が開閉弁
に噛み込まれて作動不良や出力低下を招来するおそれが
著しく減少し、実質的にそのような障害を惹起すること
なく作動機器を作動することが可能となる。According to the present invention, since the cleanliness of the hydraulic oil can be maintained at a certain level or higher, it is not necessary to replace or discard the hydraulic oil, and the hydraulic oil can be used without replacement for a long period of time. In addition, since the cleanliness of the hydraulic oil is maintained above a certain level, the risk of impurities being caught in the on-off valve and causing malfunction or reduced output is significantly reduced. It is possible to operate the operating device without causing
【００１１】[0011]
【実施例】以下に図面を参照しつつ、この発明の好まし
い実施例を説明する。図１はこの発明に係る作動油の微
細不純物除去システムの原理を示し、図において、
（１）は作動油タンク、（２）は作動機器の各作動機構
部分であり、作動油はタンク（１）からポンプ（３）で
所定の圧力に加圧されて各作動機構部分（２）に送給さ
れ、各作動機構部分（２）を作動させた後、再びタンク
（１）に環流する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows the principle of a system for removing fine impurities in hydraulic oil according to the present invention.
(1) is a hydraulic oil tank, (2) is each operating mechanism part of the operating equipment, and hydraulic oil is pressurized from the tank (1) to a predetermined pressure by a pump (3) and each operating mechanism part (2) Is supplied to the tank (1), and after activating each operation mechanism part (2), it is recirculated to the tank (1).
【００１２】この発明は、ベンディングローラ、スクレ
ーパ、ブルドーザ等の建設、土木機械や飛行機、船、ロ
ケット等の輸送機器の如き種々の作動機器の回転、摺
動、揺動等の各種作動を行う作動機構部分の作動をもた
らす作動油中の微細な不純物の除去に適応可能であり、
作動機構部分（２）からタンク（１）に環流する作動油
の一部若しくはタンク（１）内の作動油を取り出して不
純物除去装置（４）で除去するようにしたことを特徴と
する。The present invention is intended to perform various operations such as rotation, sliding and rocking of various operating equipment such as construction of bending rollers, scrapers, bulldozers, transportation equipment such as civil engineering machines, airplanes, ships and rockets. It is applicable to the removal of fine impurities in hydraulic fluid that causes the operation of mechanical parts,
It is characterized in that a part of the hydraulic oil circulating to the tank (1) from the operating mechanism portion (2) or the hydraulic oil in the tank (1) is taken out and removed by an impurity removing device (4).
【００１３】不純物除去装置（４）は、図２〜４に示す
ように、多数の紙を層状に積み重ね中心に通路（６）を
貫穿した不純物除去エレメント（５）を、円筒状の本体
ケーシング（７）内に収納してなり、本体ケーシング
（７）の側壁には、作動機構部分（２）からタンク
（１）へ環流する作動油の一部をバイパスさせるバイパ
ス通路（８）が接続され、又下面には不純物除去エレメ
ント（５）の中心の通路（６）に連通する取出パイプ
（９）が接続され、該取出パイプ（９）の他端はタンク
（１）内に連通される。不純物除去エレメント（５）
は、テイッシュペーパーの如き薄葉紙を多数層状に積み
重ねたものであり、作動油は不純物除去エレメントの周
側面から各紙の層間隙に入り込み層間隙を流過して中心
の通路（６）に流出する。層間隙を流渦中に、作動油油
中に含まれる不純物が紙の繊維に付着し、そこに取り残
される状態で除去される。かかるフィルターエレメント
（５）は、作動油中に含まれる１ミクロン以上の不純物
を除去することが可能である。As shown in FIGS. 2 to 4, the impurity removing device (4) has a cylindrical main body casing (5) having an impurity removing element (5) having a large number of papers stacked in layers and having a passage (6) at the center thereof. 7), and a bypass passage (8) for bypassing a part of the hydraulic oil circulating from the operating mechanism portion (2) to the tank (1) is connected to the side wall of the main body casing (7), An extraction pipe (9) communicating with the central passage (6) of the impurity removal element (5) is connected to the lower surface, and the other end of the extraction pipe (9) is communicated with the inside of the tank (1). Impurity removal element (5)
Is a multi-layered stack of thin paper such as tissue paper. The hydraulic oil enters the layer gap of each paper from the peripheral side surface of the impurity removal element, passes through the layer gap, and flows out to the central passage (6). Impurities contained in the hydraulic oil adhere to the fibers of the paper in the vortex flowing through the layer gap, and are removed in a state of being left there. The filter element (5) can remove impurities of 1 micron or more contained in the hydraulic oil.
【００１４】不純物除去エレメント（５）の上面には、
受圧板（１０）が配設され、作動油の圧力に応じて不純
物除去エレメント（５）を加圧、圧縮しフィルターエレ
メントが局部的に圧潰されるのを防止する。受圧板（１
０）には好ましくはその中心に側壁に形成された汚染油
導入孔（１１）より小径のエア抜き孔（１２）が穿孔さ
れ、不純物除去エレメント（５）に負荷される圧力を調
整すると共に、作動油中に存在するアワ抜きを行い、不
純物除去エレメント（５）内をアワが流過しないように
する。On the upper surface of the impurity removing element (5),
A pressure receiving plate (10) is provided to pressurize and compress the impurity removing element (5) according to the pressure of the hydraulic oil to prevent the filter element from being locally crushed. Pressure plate (1
0) is preferably provided with an air vent hole (12) having a diameter smaller than that of the contaminated oil introduction hole (11) formed in the side wall at the center thereof to adjust the pressure applied to the impurity removing element (5) and The bubbles that are present in the hydraulic oil are removed to prevent bubbles from flowing through the impurity removing element (5).
【００１５】不純物除去エレメント（５）は好ましくは
その上面に配置される受圧板（１０）と共に、カートリ
ッジ容器（１３）内に収納され、本体ケーシング（７）
から取り出し自在である。カートリッジ容器（１３）は
使用前においては、上下面を密封された缶形状をなし、
上面には引き裂くことによって開口（１４）を形成する
開口手段（１５）が設けられ、下面には取出パイプ
（９）に連通する下面開口（１６）を使用時に針等で刺
通して形成する。（１７）は不純物除去エレメント
（５）の下面を支持する支持板であり、該支持板（１
７）の中心に前記通路（６）に連通する中央孔（１８）
が形成されると共に、連結杆（１９）が植立され、受圧
板（１０）の上面に止着する抜止栓（２０）により、不
純物除去エレメント（５）は受圧板（１０）と支持板
（１７）との間に保持される。カートリッジ容器（１
３）の下面には、濾紙（２１）が定着され、本体ケーシ
ング（１）の内底面との間に介在して、初期における濾
過作用と目詰り状態となったときのパッキン作用とをは
たす。カートリッジ容器（１３）内には、予め所要量の
新しい作動油や添加剤が収納されており、不純物除去エ
レメント交換時に、減少した作動油や添加剤の補給を行
うことが出来る。The impurity removing element (5) is housed in a cartridge container (13), preferably with a pressure receiving plate (10) arranged on the upper surface thereof, and a main body casing (7).
It is possible to take it out from. Before use, the cartridge container (13) has a can shape in which the upper and lower surfaces are sealed,
Opening means (15) for forming an opening (14) by tearing is provided on the upper surface, and a lower surface opening (16) communicating with the extraction pipe (9) is formed on the lower surface by piercing with a needle or the like during use. Reference numeral (17) is a support plate for supporting the lower surface of the impurity removal element (5).
Central hole (18) communicating with the passage (6) at the center of 7)
Is formed, the connecting rod (19) is planted, and the removal stopper (20) fixed to the upper surface of the pressure receiving plate (10) causes the impurity removal element (5) to move to the pressure receiving plate (10) and the support plate (10). 17) and held. Cartridge container (1
A filter paper (21) is fixed on the lower surface of 3) and is interposed between the filter paper (21) and the inner bottom surface of the main body casing (1) to provide an initial filtering action and a packing action when a clogging state occurs. The cartridge container (13) stores a required amount of new hydraulic oil and additives in advance, so that the reduced amount of hydraulic oil and additives can be replenished when the impurity removal element is replaced.
【００１６】不純物除去エレメント（５）は、回転する
切断手段により原料紙からドーナッツ状のエレメントを
作出することを特徴とした、特公昭６３−７８１０号公
報に開示の方法によって最も簡単且適切に製造すること
が出来る。The impurity removing element (5) is most simply and appropriately manufactured by the method disclosed in Japanese Patent Publication No. 63-7810, which is characterized in that a donut-shaped element is produced from a raw paper by a rotating cutting means. You can do it.
【００１７】図５は、この発明に係る微細不純物除去シ
ステムをベンディングローラに適用した具体的な回路を
示し、作動油タンク（１）には所定量の作動油が貯めら
れ、ポンプ（３）で加圧され、調圧弁（２１）で約３０
０Ｋｇ／ｃｍ２の圧力に調圧されつつ、ベンディングロ
ーラの各作動機構部分（２）に送られる。各作動機構部
分（２）において所要の作動を行った後、作動油はタン
ク（１）に区画形成された濾過スペース（２２）に戻さ
れる。該濾過スペース（２２）には、５０〜１００ミク
ロン程度の不純物を濾過し得る２００メッシュ程度の濾
過器（２３）が配設され、濾過スペース（２２）に戻さ
れた作動油は該濾過器（２３）で濾過された後タンク
（１）内に環流する。FIG. 5 shows a concrete circuit in which the fine impurity removing system according to the present invention is applied to a bending roller. A predetermined amount of hydraulic oil is stored in the hydraulic oil tank (1) and the pump (3) is used. Pressurized, about 30 with pressure regulator (21)
The pressure is adjusted to 0 Kg / cm 2 and is sent to each actuating mechanism portion (2) of the bending roller. After performing the required operation in each operation mechanism part (2), the hydraulic oil is returned to the filtration space (22) defined in the tank (1). The filtration space (22) is provided with a filter (23) of about 200 mesh capable of filtering impurities of about 50 to 100 microns, and the operating oil returned to the filtration space (22) is the filter ( After being filtered in 23), it is refluxed in the tank (1).
【００１８】濾過器（２３）には、安全弁を兼ねる調圧
弁（２４）が取り付けられており、濾過スペース（２
２）内を所定の圧力に調圧していると共に、これ以上の
圧力となった場合、開弁して濾過器（２３）による濾過
を行うことなく、作動油がタンク（１）内に環流するよ
うに構成される。[0018] filter (23) is a pressure regulating valve also serves as a safety valve (24) is Ri attached taken, filtration space (2
2) The inside of the tank is regulated to a predetermined pressure, and when the pressure becomes higher than this, the working oil circulates into the tank (1) without opening the valve and performing filtration by the filter (23). Is configured as follows.
【００１９】濾過スペース（２２）には、不純物除去装
置（４）のバイパス通路（８）が接続され、濾過スペー
ス（２２）内に戻されて来た汚染油の一部が、不純物除
去装置（４）に送られ、不純物除去エレメント（５）で
除去された後、取出パイプ（９）でタンク（１）内に直
接戻されている。A bypass passage (8) of the impurity removing device (4) is connected to the filtering space (22), and a part of the contaminated oil returned into the filtering space (22) is removed by the impurity removing device ( 4), after being removed by the impurity removing element (5), it is directly returned to the tank (1) by the take-out pipe (9).
【００２０】本発明の微細不純物除去システムにより、
ベンディングローラの作動油について不純物の除去性能
を従来のものと対比すると表１、２に示すとおりであっ
た。By the fine impurity removing system of the present invention,
The impurities removal performance of the hydraulic oil of the bending roller was as shown in Tables 1 and 2 in comparison with the conventional one.
【００２１】[0021]
【表１】 [Table 1]
【００２２】[0022]
【表２】 [Table 2]
【００２３】表１は従来のものによる作動油の汚染度を
示し、表２は本発明によるものを示している。表１、２
においてＮＡＳクラスは１００ミリリットル中の５ミク
ロン以上の全粒子数を、サイズ範囲に分けて表示し、最
も悪いクラスで判定した。又、ＩＳＯ清浄度コードは、
１ミリリットル中の５ミクロン以上の全粒子数（Ａ）と
１ミリリットル中の１５ミクロン以上の全粒子数（Ｂ）
とを比較してＡ／Ｂで表示し清浄度を判定する。Table 1 shows the contamination degree of the hydraulic oil by the conventional one, and Table 2 shows the one according to the present invention. Tables 1 and 2
In the NAS class, the total number of particles of 5 micron or more in 100 ml was divided into size ranges and displayed, and the worst class was judged. The ISO cleanliness code is
Total number of particles of 5 microns or more in 1 ml (A) and total number of particles of 15 microns or more in 1 ml (B)
And is displayed in A / B to determine the cleanliness.
【００２４】従来のものにあっては、第１回測定時にＮ
ＡＳクラスの判定が「６」であり、ＩＳＯ清浄度コード
が「１４／１１」であったのに対し、約１ケ月後の第２
回測定時にはＮＡＳクラスの判定は「１１」となり、Ｉ
ＳＯ清浄度コードも「１９／１６」と汚染度が上昇して
いた。これからして、１ケ月後の作動油は当然交換を必
要としている。しかしながら、この測定は１ケ月後に行
われたにすぎないものであり、第１回から第２回の測定
までの間の汚染度の進行程度は不明である。第１回測定
時から１週間後に既にこの汚染レベルに達していた可能
性もある。もしそうならば、１ケ月後ではなく１週間後
に作動油交換を要したものであり、交換しないまま作動
油が使用されていたことを意味している。In the case of the conventional one, N is set at the first measurement.
The AS class judgment was "6" and the ISO cleanliness code was "14/11", while the second after about 1 month
At the time of measurement, the NAS class judgment is “11” and I
The SO cleanliness code was also "19/16", indicating that the pollution level had increased. From now on, of course, the hydraulic oil after one month needs to be replaced. However, this measurement was performed only one month later, and the degree of progress of the contamination degree between the first measurement and the second measurement is unknown. It is possible that this contamination level had already been reached one week after the first measurement. If so, 1 are those that took the hydraulic oil exchange after one week rather than after months, which means that while the hydraulic oil does not exchange has been used.
【００２５】これに対し、本発明により不純物を除去さ
れた作動油は、第１回測定時（これは新油の規格であ
る）に、ＮＡＳクラスが「８」であり、ＩＳＯ清浄度コ
ードが「１６／１２」であったのに対し、約１週間後の
第２回測定時ではＮＡＳクラスが「５」、ＩＳＯ清浄度
コードが「１３／１１」と清浄度が向上していることが
判明した。又、更に約１０日後の第３回測定ではＮＡＳ
クラスが「５」、ＩＳＯ清浄度コードが「１３／１０」
を示し、使用にもかかわらず、第２回測定時の清浄度が
維持されていた。又、この本件発明に係る作動油の通常
分析結果は表３に示すとおりであり、性状中、不純物の
大小を代表する残留炭素や灰分以外はほとんど変化が見
られず、残留炭素及び灰分は減少していることが認めら
れた。On the other hand, the hydraulic oil from which impurities have been removed according to the present invention has a NAS class of "8" and an ISO cleanliness code at the time of the first measurement (this is the standard of new oil). While it was "16/12", the NAS class was "5" and the ISO cleanliness code was "13/11" at the time of the second measurement about one week later, indicating that the cleanliness has improved. found. In addition, in the third measurement about 10 days later, NAS
Class is "5", ISO cleanliness code is "13/10"
, The cleanliness at the time of the second measurement was maintained despite the use. Further, the normal analysis result of the hydraulic oil according to the present invention is as shown in Table 3, and in the properties, almost no change was observed except for the residual carbon and ash which represent the size of impurities, and the residual carbon and ash decreased. It was recognized that
【００２６】[0026]
【表３】 [Table 3]
【００２７】このベンディングローラの作動油中の微細
不純物除去システムを構成する不純物除去エレメント
（５）は直径１６０ｍｍ、高さ２３０ｍｍの円筒形状を
有し、積層された紙は約３３００枚であった。作動油タ
ンク（１）の基準面油量は１２３リットルであり、機械
全体で２３３リットルの油量が流動している。ポンプ
（３）の吐出圧力は３００ｋｇ／ｃｍ２、戻り油の油圧
は１．５Ｋｇ／ｃｍ２、不純物除去装置の本体ケーシン
グ（７）内の入側圧力は０．８ｋｇ／ｃｍ２であり、１
時間当たり６０℃の作動油を７０リットル処理すること
が出来る。したがって、１日８時間ベンディングローラ
を稼働すると、約５６０リットルの作動油が不純物除去
エレメント（５）を通過し、機械全体を流れる作動油は
２回転以上処理されることとなる。The impurity removing element (5) constituting the system for removing fine impurities in hydraulic oil of the bending roller had a cylindrical shape with a diameter of 160 mm and a height of 230 mm, and the number of laminated paper sheets was about 3,300. The reference surface oil amount of the hydraulic oil tank (1) is 123 liters, and the oil amount of 233 liters flows in the entire machine. The discharge pressure of the pump (3) is 300 kg / cm 2 , the oil pressure of the return oil is 1.5 Kg / cm 2 , the inlet pressure in the main body casing (7) of the impurity removing device is 0.8 kg / cm 2 , and 1
70 liters of hydraulic oil at 60 ° C. can be processed per hour. Therefore, when the bending roller is operated for 8 hours a day, about 560 liters of hydraulic oil passes through the impurity removal element (5), and the hydraulic oil flowing through the entire machine is processed twice or more.
【００２８】更に、本発明の微細不純物除去システムに
より、パワーショベルの作動油を処理したところ、表４
にみられる如き結果を得ることが出来た。Further, when the hydraulic oil of the power shovel was treated by the fine impurity removing system of the present invention, Table 4
We were able to obtain the results as seen in.
【００２９】[0029]
【表４】 [Table 4]
【００３０】表４より明らかなように、作動油は処理時
間の経過と共に清浄度が向上していることが理解出来
る。As is clear from Table 4, it can be understood that the cleanliness of the hydraulic oil improves with the lapse of processing time.
【図１】 原理説明図[Figure 1] Principle explanation diagram
【図２】 不純物除去装置の中央縦断斜視図FIG. 2 is a central vertical perspective view of the impurity removing device.
【図３】 不純物除去エレメントを含むカートリッジ容
器の縦断面図FIG. 3 is a vertical cross-sectional view of a cartridge container including an impurity removal element.
【図４】 分解斜視図FIG. 4 is an exploded perspective view
【図５】 具体的な回路図[Fig. 5] Specific circuit diagram
（１） 作動油タンク （２） 作動機構部分 （３） ポンプ （４） 不純物除去装置 （５） 不純物除去エレメント （６） 通 路 （７） 本体ケーシング （８） バイパス通路 （９） 取出パイプ （１０） 受圧板 （１１） 汚染油導入孔 （１２） エア抜き孔 （１３） カートリッジ容器 （１４） 開 口 （１５） 開口手段 （１６） 下面開口 （１７） 支持板 （１８） 中央孔 （１９） 連結杆 （２０） 抜止栓 （２１） 調圧弁 （２２） 濾過スペース （２３） 濾過器 （２４） 調圧弁 (1) Hydraulic oil tank (2) Operating mechanism part (3) Pump (4) Impurity removing device (5) Impurity removing element (6) Passage (7) Main body casing (8) Bypass passage (9) Extraction pipe (10) ) Pressure receiving plate (11) Contaminated oil introduction hole (12) Air vent hole (13) Cartridge container (14) Opening hole (15) Opening means (16) Lower surface opening (17) Support plate (18) Center hole (19) Connection Rod (20) Stopper plug (21) Pressure regulating valve (22) Filtration space (23) Filter (24) Pressure regulating valve
フロントページの続き (56)参考文献 特開 昭54−47969（ＪＰ，Ａ) 特開 昭59−22996（ＪＰ，Ａ) 特開 昭57−204211（ＪＰ，Ａ) 特開 昭56−143298（ＪＰ，Ａ) 特開 昭62−243694（ＪＰ，Ａ)Continuation of the front page (56) Reference JP-A-54-47969 (JP, A) JP-A-59-22996 (JP, A) JP-A-57-204211 (JP, A) JP-A-56-143298 (JP , A) JP 62-243694 (JP, A)
Claims (2)
分を作動させる作動油中の微細な不純物を除去する方法
であって、各作動機構部分から作動油タンクに戻る低圧
の戻り油の一部を機械の運転中常時バイパスさせて、多
数の紙を円筒状に積層し作動油を紙の積層間隙の一端か
ら他端に流過させて流過中に不純物を紙の繊維に付着さ
せて除去するようにした不純物除去エレメントを収納し
た交換自在なカートリッジ容器を備える除去装置に流入
させ、前記不純物除去エレメントに通過させて、作動油
中に含有される１ミクロン以上の微細な不純物を除去し
た後、該不純物を除去された清浄油を前記作動油タンク
に戻すようにしたことを特徴とする建設機械および土木
機械の作動油の微細不純物除去方法。1. A method for removing fine impurities in hydraulic oil for operating respective operating mechanism parts of a construction machine and a civil engineering machine , wherein low pressure return from each operating mechanism part to a hydraulic oil tank is performed. By bypassing a part of the oil all the time during the operation of the machine , a large number of papers are laminated in a cylindrical shape, and the working oil is passed from one end of the paper stacking gap to the other end, causing impurities to flow into the paper fibers. flows into the removal device comprises a replaceable cartridge container containing the impurity removal elements so as to remove deposited allowed
And pass it through the impurity removal element,
Removes fine impurities of 1 micron or more contained in
After removing the impurities, clean oil is removed from the hydraulic oil tank.
Construction machinery and civil engineering characterized by being returned to
Method for removing fine impurities in machine hydraulic fluid.
分を作動させる作動油中の微細な不純物を除去する装置
であって、各作動機構部分から作動油タンクに戻る低圧
の戻り油のラインに接続したバイパス回路と、多数の紙
を円筒状に積層し作動油を紙の積層間隙の一端から他端
に流過させて流過中に不純物を紙の繊維に付着させて除
去するようにした不純物除去エレメントを収納した交換
自在なカートリッジ容器を備える除去装置とを有し、除
去装置の入口に前記バイパス回路を接続し、除去装置の
出口を作動油タンクに接続し、作動機器の運転中常時戻
り油の一部を戻り油ラインから取り出して前記不純物除
去エレメントに通過させて、作動油中に含有される１ミ
クロン以上の微細な不純物を除去するようにしたことを
特徴とする各種作動機器の作動油の微細不純物除去装
置。2. Each operating mechanism section of construction machinery and civil engineering machinery
A device for removing minute impurities in hydraulic oil
And low pressure returning from each operating mechanism to the hydraulic oil tank
A bypass circuit connected to the return oil line of the
Is laminated in a cylindrical shape and hydraulic oil is applied from one end to the other end of the paper lamination gap.
To remove impurities by adhering to the fibers of the paper during the flow.
Replacement that contains the impurity removal element that was designed to be removed
And a removing device equipped with a free cartridge container.
The bypass circuit is connected to the inlet of the removal device
Connect the outlet to the hydraulic oil tank and always return it while the operating equipment is operating.
Remove some of the oil from the return oil line to remove the impurities.
1 ml contained in hydraulic oil after passing through the exhaust element.
It was designed to remove fine impurities more than Cron
Characteristic equipment for removing fine impurities from hydraulic oil of various operating equipment
Place .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2418339A JPH0826344B2 (en) | 1990-12-26 | 1990-12-26 | Fine Impurity Removal System for Hydraulic Oil of Construction Machinery and Civil Engineering Machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2418339A JPH0826344B2 (en) | 1990-12-26 | 1990-12-26 | Fine Impurity Removal System for Hydraulic Oil of Construction Machinery and Civil Engineering Machinery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04356598A JPH04356598A (en) | 1992-12-10 |
| JPH0826344B2 true JPH0826344B2 (en) | 1996-03-13 |
Family
ID=18526197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2418339A Expired - Lifetime JPH0826344B2 (en) | 1990-12-26 | 1990-12-26 | Fine Impurity Removal System for Hydraulic Oil of Construction Machinery and Civil Engineering Machinery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0826344B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3492429B2 (en) * | 1994-10-11 | 2004-02-03 | 山信工業株式会社 | Filter element |
| JP5675570B2 (en) * | 2011-12-02 | 2015-02-25 | 三菱重工業株式会社 | Lubricating oil deterioration evaluation device and lubricating oil deterioration evaluation system |
| JP5382967B1 (en) * | 2013-04-22 | 2014-01-08 | 木部建設株式会社 | Environmentally friendly system for work machines |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5447969A (en) * | 1977-09-22 | 1979-04-16 | Matsumura Sekiyu Kenkyusho | Method of controlling deterioration in waterrglycol type hydraulic actuating liquid |
| JPS56143298A (en) * | 1980-04-10 | 1981-11-07 | Agency Of Ind Science & Technol | Control of water-soluble lubricant and apparatus therefore |
| JPS57204211A (en) * | 1981-06-09 | 1982-12-14 | Kureha Chem Ind Co Ltd | Membrane for purifying mineral oil |
| JPS5922996A (en) * | 1982-07-30 | 1984-02-06 | Sumimoto Kagaku Kenkyusho:Kk | Apparatus for filtering lubricating oil |
| IT1191733B (en) * | 1986-04-15 | 1988-03-23 | Ausimont Spa | VACUUM PUMP EQUIPPED WITH A LUBRICANT OIL FILTER |
-
1990
- 1990-12-26 JP JP2418339A patent/JPH0826344B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04356598A (en) | 1992-12-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5772900A (en) | Method and apparatus for reclaiming used working fluid | |
| CN107278165A (en) | It is used in particular for the filtration system of such as lubricating oil of marine engine shipborne equipment for filtering | |
| DE69909520T2 (en) | FUEL FILTER WITH CONDENSATE DRAINER AND WATER SEPARATOR | |
| DE4209588C2 (en) | Oil separator with integrated microfiltration device and method for cleaning it | |
| US6015487A (en) | Coolant purification system | |
| EP1993698B1 (en) | Filter device and filtering method | |
| US6274037B1 (en) | Coolant purification system | |
| US20010030159A1 (en) | Filtration system for industrial coolants, and the like | |
| CN108862747A (en) | Wastewater treatment and solids recovery system | |
| EP1993694A1 (en) | Device and method for processing backwashed fluid | |
| JPH0826344B2 (en) | Fine Impurity Removal System for Hydraulic Oil of Construction Machinery and Civil Engineering Machinery | |
| US20030015482A1 (en) | Double filtration for purifying coolant-lubricant liquids | |
| US4966693A (en) | Apparatus for processing coolant | |
| US4895649A (en) | Apparatus for processing coolant | |
| CN209493417U (en) | The device of processing cutting liquid | |
| JPH03196811A (en) | Filter device | |
| DE236434C (en) | ||
| JP4750344B2 (en) | Oil-water separator for treated water containing emulsified oil | |
| JPH08965A (en) | Regeneration of waste process liquid and device therefor | |
| JP3383453B2 (en) | Oil-water separator | |
| JPH08197536A (en) | Method and device for regenerating waste working fluid | |
| JPH0673304U (en) | Engine oil impurity removal circuit | |
| JP2002129925A (en) | Oil filter | |
| JP3539147B2 (en) | Filtration device | |
| KR102590945B1 (en) | Check valve with strainer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080313 Year of fee payment: 12 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090313 Year of fee payment: 13 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100313 Year of fee payment: 14 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100313 Year of fee payment: 14 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100313 Year of fee payment: 14 |
|
| R371 | Transfer withdrawn |
Free format text: JAPANESE INTERMEDIATE CODE: R371 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100313 Year of fee payment: 14 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313115 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100313 Year of fee payment: 14 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100313 Year of fee payment: 14 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110313 Year of fee payment: 15 |