JPH01135988A - Foreign matter capture device for hydraulic equipment - Google Patents

Foreign matter capture device for hydraulic equipment

Info

Publication number
JPH01135988A
JPH01135988A JP62291939A JP29193987A JPH01135988A JP H01135988 A JPH01135988 A JP H01135988A JP 62291939 A JP62291939 A JP 62291939A JP 29193987 A JP29193987 A JP 29193987A JP H01135988 A JPH01135988 A JP H01135988A
Authority
JP
Japan
Prior art keywords
foreign matter
hydraulic equipment
caught
poppet
slit groove
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
Application number
JP62291939A
Other languages
Japanese (ja)
Inventor
Toshio Takano
高野　年郎
Masayuki Tanaami
正幸 店網
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Komatsu Ltd
Original Assignee
Komatsu Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP62291939A priority Critical patent/JPH01135988A/en
Publication of JPH01135988A publication Critical patent/JPH01135988A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/12—Water-insoluble compounds
    • C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
    • C11D3/1246—Silicates, e.g. diatomaceous earth
    • C11D3/128—Aluminium silicates, e.g. zeolites
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/06—Powder; Flakes; Free-flowing mixtures; Sheets
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/06—Phosphates, including polyphosphates
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/08—Silicates
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/10—Carbonates ; Bicarbonates
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/12—Water-insoluble compounds
    • C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
    • C11D3/1246—Silicates, e.g. diatomaceous earth
    • C11D3/1253—Layer silicates, e.g. talcum, kaolin, clay, bentonite, smectite, montmorillonite, hectorite or attapulgite
    • C11D3/1273—Crystalline layered silicates of type NaMeSixO2x+1YH2O
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/26—Organic compounds containing nitrogen
    • C11D3/33—Amino carboxylic acids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Details Of Valves (AREA)

Abstract

PURPOSE:To enable foreign matter to be caught with no wire net mounted by forming a clearance, having a space smaller than a grain size of the foreign matter, in a hydraulic equipment in its oil path. CONSTITUTION:A slit groove 12, having a width H1 a little smaller than the grain size of foreign matter to be caught, is formed in a poppet 3 in the peripheral direction of its small contour intermediate part 8. In this way, because the foreign matter in oil circulated in an oil path can be caught by the slit groove 12, the foreign matter can be caught without mounting a wire net.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、油圧バルブ、安全弁、ポペット弁、油圧ポン
プモータなどの油圧機器における油路内に混入した異物
を捕捉する装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for trapping foreign matter mixed into an oil passage in a hydraulic device such as a hydraulic valve, a safety valve, a poppet valve, or a hydraulic pump motor.

〔従来の技術〕[Conventional technology]

油圧機器の油路を流通する油中に異物が混入すると油圧
機器の作動に悪影響を及ぼすので、その異物を捕捉する
必要があり、従来は油路の途中に金網等を設置し、その
金網によって異物を捕捉している。If foreign matter gets mixed into the oil flowing through the oil path of hydraulic equipment, it will have a negative effect on the operation of the hydraulic equipment, so it is necessary to capture the foreign matter. A foreign object is captured.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

しかしながら、油圧機器の油路の途中に金網を取付ける
ことは大変面倒であるばかりか確実に固定し難く外れた
りすることがあって信頼性が低いものであると共に、金
網を取付けるためのスペースを必要とするから油圧機器
がそれだけ大型化したり、複雑となってし、まう。However, installing a wire mesh in the middle of the oil path of hydraulic equipment is not only very troublesome, but also difficult to securely fix and may come off, resulting in low reliability.In addition, it requires space to install the wire mesh. As a result, hydraulic equipment becomes larger and more complex.

そこで、本発明は金網を取付けることなしに異物を捕捉
で−きるようにした油圧機器の異物捕捉装置を提供する
ことを目的とする。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a foreign object trapping device for hydraulic equipment that can trap foreign objects without attaching a wire mesh.

〔問題点を解決するための手段及び作用〕油圧機器の油
路に、捕捉すべき異物の粒径より小さい間隔の隙間を形
成して、油路の途中に金網を取付けることなしに隙間で
異物を捕捉できるようにしたものである。[Means and actions for solving the problem] A gap is formed in the oil path of a hydraulic device with a spacing smaller than the particle size of the foreign object to be captured, so that the foreign object can be trapped in the gap without installing a wire mesh in the middle of the oil path. It is designed so that it can be captured.

〔実　施　例〕〔Example〕

以下本発明の実施例をポペット弁について説明する。 Embodiments of the present invention will be described below regarding a poppet valve.

第１図のように、弁本体１の軸孔２内にはポペット３が
摺動自在に嵌挿され、このポペット３のテーパ一部３ａ
を弁本体１のシート４を圧接して入口ボート５と出口ボ
ート６を遮断してポペット弁を構成している。As shown in FIG. 1, a poppet 3 is slidably inserted into the shaft hole 2 of the valve body 1, and a tapered portion 3a of the poppet 3 is inserted into the shaft hole 2 of the valve body 1.
The seat 4 of the valve body 1 is pressed against the valve body 1 to shut off the inlet boat 5 and the outlet boat 6 to form a poppet valve.

前記ポペット３は大径基部７と小径中間部８とテーパ一
部３ａを有する先部９とより成り、かつ軸心には盲穴１
０が穿孔され、大径基部７の外周に形成した小径部７ａ
が第１ボート１１で盲穴１０に開口し、その盲穴１０は
小径中間部８に形成したスリット溝１２と第２ボート１
３で入口ボート５に開口している。The poppet 3 consists of a large-diameter base 7, a small-diameter intermediate portion 8, and a tip 9 having a tapered portion 3a, and has a blind hole 1 at its axis.
0 is perforated and formed on the outer periphery of the large diameter base 7.
opens into a blind hole 10 at the first boat 11, and the blind hole 10 connects the slit groove 12 formed in the small diameter intermediate portion 8 and the second boat 1.
3 opens into the entrance boat 5.

前記スリット溝１２は第２図に示すように、ポペット３
の小径中間部８の周方向に間隔を置いて複数形成され、
そのスリット溝１２の幅Ｈ１は捕捉する異物の粒径より
若干小さくなり、入口ポート５より後述する盲穴１０内
に流れる油中の異物をスリット溝１２で捕捉するように
しである。The slit groove 12 is connected to the poppet 3 as shown in FIG.
A plurality of small diameter intermediate portions 8 are formed at intervals in the circumferential direction,
The width H1 of the slit groove 12 is slightly smaller than the particle size of the foreign matter to be captured, so that the slit groove 12 captures foreign matter in the oil flowing from the inlet port 5 into the blind hole 10, which will be described later.

つまり、入口ボート５と盲穴１０とに亘る油路を遮断す
る部材（ポペット３の小径中間部８）に、スリット溝１
２を形成し、そのスリット溝１２で油路を流通する油中
の異物を捕捉するようにしである。In other words, a slit groove 1 is provided in the member (small diameter intermediate portion 8 of the poppet 3) that blocks the oil passage between the inlet boat 5 and the blind hole 10.
2 is formed, and the slit groove 12 is designed to trap foreign matter in the oil flowing through the oil passage.

そして、ポペット３の大径基部７の外周が弁本体１の軸
孔２内に嵌挿していると共に、その外周に形成した環状
溝１４にＯリング１５とスリッパシール１６を嵌め込み
し、スリップシール１６をＯリング１５の弾性力で軸孔
２に押しつけている。Then, the outer periphery of the large diameter base 7 of the poppet 3 is fitted into the shaft hole 2 of the valve body 1, and the O-ring 15 and slipper seal 16 are fitted into the annular groove 14 formed on the outer periphery. is pressed against the shaft hole 2 by the elastic force of the O-ring 15.

前記弁本体−１の軸孔２にはスリーブ１７が嵌挿固定さ
れ、このスリーブ１７の先端に設けたスプール１８がポ
ペット３の盲穴１０内に嵌挿し、かつバネ１９が設けら
れてポペット３を図中左方に押し動してテーパ一部３ａ
をシート４に圧接していると共に、スプール１８のラン
ド部１８ａによってスリット溝１２と盲穴１ｏの開口面
積を調整している。A sleeve 17 is fitted and fixed into the shaft hole 2 of the valve body 1, and a spool 18 provided at the tip of the sleeve 17 is fitted into the blind hole 10 of the poppet 3, and a spring 19 is provided to secure the poppet 3. Taper part 3a by pushing it to the left in the figure.
is pressed against the sheet 4, and the opening areas of the slit groove 12 and the blind hole 1o are adjusted by the land portion 18a of the spool 18.

前記スリーブ１７の段付孔１７ａ内にスプール１９が嵌
挿され、このスプール１９はバネ２゜で左方に押されて
テーパ一部１９ａがシート２１に圧接して第３ポート２
２と第４ボート２３を遮断し、第３ボート２２は弁本体
１のタンクポート２４に開口し、第４ポート２２は油孔
２５でポペット３の受圧室２６に開口し、その受圧室２
６は第５ポート２７、弁本体１の外周溝２８、第６ボー
ト２９で前記ポペット３の小径部７ａに連通している。A spool 19 is fitted into the stepped hole 17a of the sleeve 17, and the spool 19 is pushed to the left by a spring 2° so that the tapered portion 19a comes into pressure contact with the seat 21, so that the third port 2
The third boat 22 opens to the tank port 24 of the valve body 1, and the fourth port 22 opens to the pressure receiving chamber 26 of the poppet 3 through the oil hole 25.
6 communicates with the small diameter portion 7a of the poppet 3 through a fifth port 27, an outer peripheral groove 28 of the valve body 1, and a sixth boat 29.

前記スリーブ１７の外周には環状溝３０が形成されて弁
本体１の軸孔２との間に環状となった微小空間３１を形
成し、この微小空間３１が、前記スリーブ１７の段付孔
１７ａとスプール１９との間に形成した室３２に第６ボ
ート３３で連通していると共に、この微小空間３１は弁
本体１の軸孔２に形成した環状溝３４に開口し、その環
状溝３４は弁本体１に穿孔したキリ穴′３５に開口して
いる。An annular groove 30 is formed on the outer periphery of the sleeve 17 to form an annular minute space 31 between it and the shaft hole 2 of the valve body 1, and this minute space 31 is connected to the stepped hole 17a of the sleeve 17. A sixth boat 33 communicates with a chamber 32 formed between the valve body 1 and the spool 19, and this minute space 31 opens into an annular groove 34 formed in the shaft hole 2 of the valve body 1. It opens into a drill hole '35 drilled in the valve body 1.

このようであるから、弁本体１の軸孔２と、その軸孔２
に嵌挿したスリーブ１７とで形成された微小空間３１を
油が流通する際に、その油中の異物を微小空間３１で捕
捉することができる。Since it is like this, the shaft hole 2 of the valve body 1 and its shaft hole 2
When oil flows through the microspace 31 formed by the sleeve 17 fitted into the sleeve 17, foreign matter in the oil can be captured in the microspace 31.

つまり、弁本体１などの外周器と、それに嵌まり込むス
リーブ１７などの内周器との間に微小空間を形成し、そ
の微小空間を捕捉する異物の粒径より若干小さくするこ
とで、微小空間を流通する油中の異物を捕捉するように
しである。In other words, a minute space is formed between an outer circumference such as the valve body 1 and an inner circumference such as the sleeve 17 that fits into it, and by making the minute space slightly smaller than the particle size of the foreign object to be captured, It is designed to capture foreign matter in the oil flowing through the space.

〔発明の効果〕〔Effect of the invention〕

油路の途中に金網を取付けずに油圧機器の油路自体で異
物を捕捉でき、金網の面倒な取付けをしなくとも良いと
共に、外れたすせずに信頼性が優れたものとなるばかり
か、余分なスペースを必要としないから油圧機器が大型
化したり、複雑化したりすることがない。Foreign objects can be captured in the hydraulic equipment's oil path itself without installing a wire mesh in the middle of the oil path, eliminating the need for the troublesome installation of a wire mesh, and not only improving reliability as it does not come loose. Since no extra space is required, hydraulic equipment does not become larger or more complex.

【図面の簡単な説明】 図面は本発明の実施例を示し、第１図は全体断面図、第
２図はスリット溝部分の断面図である。 １２はスリット溝、３１は微小空間。 出願人　　株式会社　小　松　製　作　所代理人　　弁
理士　　米　原　正　章BRIEF DESCRIPTION OF THE DRAWINGS The drawings show an embodiment of the present invention, with FIG. 1 being an overall sectional view and FIG. 2 being a sectional view of a slit groove portion. 12 is a slit groove, and 31 is a minute space. Applicant Komatsu Manufacturing Co., Ltd. Representative Patent Attorney Masaaki Yonehara

Claims (1)

【特許請求の範囲】 １，油圧機器の油路に、捕捉すべき異物の粒径より小さ
い間隔を持った隙間を形成したことを特徴とする油圧機
器の異物捕捉装置。 ２，油路を遮断する部材にスリット溝１２を形成して前
記隙間としたことを特徴とする特許請求の範囲第１項記
載の油圧機器の異物捕捉装置。 ３，外周器と、その外周器に嵌め込まれた内周器との間
に微小空間３１に形成して前記隙間としたことを特徴と
する特許請求の範囲第１項記載の油圧機器の異物捕捉装
置。[Scope of Claims] 1. A foreign object trapping device for hydraulic equipment, characterized in that a gap is formed in an oil path of the hydraulic equipment with a gap smaller than the particle size of the foreign object to be caught. 2. A foreign object trapping device for hydraulic equipment as set forth in claim 1, wherein the gap is formed by forming a slit groove 12 in a member that blocks an oil passage. 3. Foreign matter capture in hydraulic equipment as set forth in claim 1, characterized in that the gap is formed by forming a minute space 31 between an outer circumferential device and an inner circumferential device fitted into the outer circumferential device. Device.
JP62291939A 1987-11-20 1987-11-20 Foreign matter capture device for hydraulic equipment Pending JPH01135988A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62291939A JPH01135988A (en) 1987-11-20 1987-11-20 Foreign matter capture device for hydraulic equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62291939A JPH01135988A (en) 1987-11-20 1987-11-20 Foreign matter capture device for hydraulic equipment

Publications (1)

Publication Number Publication Date
JPH01135988A true JPH01135988A (en) 1989-05-29

Family

ID=17775412

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62291939A Pending JPH01135988A (en) 1987-11-20 1987-11-20 Foreign matter capture device for hydraulic equipment

Country Status (1)

Country Link
JP (1) JPH01135988A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012077879A (en) * 2010-10-05 2012-04-19 Saginomiya Seisakusho Inc Electrically-driven valve
WO2014054118A1 (en) * 2012-10-02 2014-04-10 三菱電機株式会社 Valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012077879A (en) * 2010-10-05 2012-04-19 Saginomiya Seisakusho Inc Electrically-driven valve
WO2014054118A1 (en) * 2012-10-02 2014-04-10 三菱電機株式会社 Valve
JP5875694B2 (en) * 2012-10-02 2016-03-02 三菱電機株式会社 valve

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