JP4088606B2 - 建設重装備用流量制御装置 - Google Patents
建設重装備用流量制御装置 Download PDFInfo
- Publication number
- JP4088606B2 JP4088606B2 JP2004167999A JP2004167999A JP4088606B2 JP 4088606 B2 JP4088606 B2 JP 4088606B2 JP 2004167999 A JP2004167999 A JP 2004167999A JP 2004167999 A JP2004167999 A JP 2004167999A JP 4088606 B2 JP4088606 B2 JP 4088606B2
- Authority
- JP
- Japan
- Prior art keywords
- passage
- load
- pressure
- control valve
- logic
- 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 - Fee Related
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K1/00—Wash-stands; Appurtenances therefor
- A47K1/08—Accessories for toilet tables, e.g. glass plates, supports therefor
- A47K1/09—Holders for drinking glasses, tooth brushes, hair brushes, or the like
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0401—Valve members; Fluid interconnections therefor
- F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2203—Arrangements for controlling the attitude of actuators, e.g. speed, floating function
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2221—Control of flow rate; Load sensing arrangements
- E02F9/2225—Control of flow rate; Load sensing arrangements using pressure-compensating valves
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/226—Safety arrangements, e.g. hydraulic driven fans, preventing cavitation, leakage, overheating
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
- E02F9/2267—Valves or distributors
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
- E02F9/2271—Actuators and supports therefor and protection therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
- F15B11/05—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed specially adapted to maintain constant speed, e.g. pressure-compensated, load-responsive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
- F15B2211/3157—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line
- F15B2211/31588—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line having a single pressure source and multiple output members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/35—Directional control combined with flow control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/40—Flow control
- F15B2211/405—Flow control characterised by the type of flow control means or valve
- F15B2211/40576—Assemblies of multiple valves
- F15B2211/40584—Assemblies of multiple valves the flow control means arranged in parallel with a check valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/40—Flow control
- F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
- F15B2211/41527—Flow control characterised by the connections of the flow control means in the circuit being connected to an output member and a directional control valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/40—Flow control
- F15B2211/42—Flow control characterised by the type of actuation
- F15B2211/428—Flow control characterised by the type of actuation actuated by fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Fluid-Pressure Circuits (AREA)
- Check Valves (AREA)
Description
第1負荷通路と前記パラレル通路との間に開閉可能に設けられ、第1負荷通路側から前記パラレル通路側への逆流を制限する逆流防止機能を有するロジックチェック弁と、パラレル通路と前記ロジックチェック弁との間に設けられかつロジックチェック弁の背圧室へ入力される流量を制御するロジック制御弁とを、含む流量制御弁;及び
第2負荷通路とパラレル通路との間に設けられ第2油圧シリンダからの逆流を制限するロッドチェック弁とを、含んでなされることを特徴としている。
Pa× Da= Pb× Db+ Fs
11 制御弁
12 ハウジング
14 制御スプール
20 流量制御弁
21 ロジックチェック弁
21a 背圧室
22 ロジック制御弁
23 ピストン
23a オリフィス
24 ばね
25 ロジックチェックポペット
25a ロジックチェック流路
30 ロッドチェック弁
31 バルブキャップ
33 ポぺット
40 パラレル通路
41 第1負荷通路
42 第2負荷通路
43 第1連結通路
44 第2連結通路
45 ロジック制御入口ライン
46 ロジック制御出口ライン
47 ポンプ圧信号ライン
48 負荷信号ライン
49 センタバイパス
201 第1油圧シリンダ
202 第2油圧シリンダ
Claims (2)
- 油圧ポンプの作動油が入力されるパラレル通路と、前記パラレル通路の作動油を第1油圧シリンダへ出力する第1負荷通路及び第2油圧シリンダへ出力する第2負荷通路が形成されるハウジングと、前記ハウジング内で移動可能に設けられ、前記第1負荷通路と前記第2負荷通路との何れかの一つを前記パラレル通路と選択的に連通させる制御スプールとを含む制御弁;
前記第1負荷通路と前記パラレル通路との間に開閉可能に設けられ、前記第1負荷通路側から前記パラレル通路側への逆流を制限する逆流防止機能を有するロジックチェック弁と、
前記パラレル通路と前記ロジックチェック弁との間に設けられかつ前記ロジックチェック弁の背圧室へ入力される流量を制御するロジック制御弁とを、含む流量制御弁;及び
前記第2負荷通路と前記パラレル通路との間に設けられ前記第2油圧シリンダからの逆流を制限するロッドチェック弁とを、含んでなされることを特徴とする建設重装備用流量制御装置。 - 前記ロジック制御弁は、前記パラレル通路側の圧力と前記第1負荷通路側の圧力との差に応じて前記ロジックチェック弁 の背圧室へ入力される流量を制限することによって、前記第1負荷通路へ出力される流量を一定するように保持することを、特徴とする請求項1に記載の建設重装備用流量制御装置。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040012334A KR100652871B1 (ko) | 2004-02-24 | 2004-02-24 | 건설중장비용 유량제어장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005240994A JP2005240994A (ja) | 2005-09-08 |
JP4088606B2 true JP4088606B2 (ja) | 2008-05-21 |
Family
ID=34747937
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004167999A Expired - Fee Related JP4088606B2 (ja) | 2004-02-24 | 2004-06-07 | 建設重装備用流量制御装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7017470B2 (ja) |
EP (1) | EP1568892B1 (ja) |
JP (1) | JP4088606B2 (ja) |
KR (1) | KR100652871B1 (ja) |
CN (1) | CN1328516C (ja) |
DE (1) | DE602004027115D1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100780897B1 (ko) * | 2006-09-28 | 2007-11-30 | 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 | 중장비용 압력 제어장치 |
US8291934B2 (en) * | 2010-01-20 | 2012-10-23 | Eaton Corporation | Proportional valve assembly |
US9085875B2 (en) * | 2010-05-17 | 2015-07-21 | Volvo Construction Equipment Ab | Hydraulic control valve for construction machinery |
CN102705305B (zh) * | 2012-06-07 | 2014-09-03 | 卢宇 | 双泵流量自动控制系统 |
DE112013006593T5 (de) * | 2013-02-05 | 2015-12-31 | Volvo Construction Equipment Ab | Drucksteuerventil für eine Baumaschine |
JP2014173616A (ja) * | 2013-03-06 | 2014-09-22 | Caterpillar Sarl | 作業機械の圧損低減回路 |
WO2017131189A1 (ja) * | 2016-01-28 | 2017-08-03 | 住友建機株式会社 | ショベル |
CN112413148A (zh) * | 2020-12-05 | 2021-02-26 | 左成林 | 一种液控单向阀 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2954011A (en) * | 1959-06-25 | 1960-09-27 | Cessna Aircraft Co | Pressure fluid control system and valve |
US3313316A (en) * | 1964-06-01 | 1967-04-11 | Clark Equipment Co | Relief and anti-cavitation valve assembly |
US5006033A (en) | 1989-07-07 | 1991-04-09 | Century Wrecker Corporation | Carrier vehicle with tilt lock-out arrangement |
FR2689575B1 (fr) * | 1992-04-06 | 1994-07-08 | Rexroth Sigma | Distributeur hydraulique a compensation de pression et une selection de pression maximale pour piloter une pompe et commande hydraulique multiple incluant de tels distributeurs. |
DE69312472T3 (de) * | 1992-10-29 | 2001-05-23 | Hitachi Construction Machinery Co., Ltd. | Hydraulische Steuerventilvorrichtung und hydraulisches Antriebssystem |
JP3289852B2 (ja) * | 1993-08-12 | 2002-06-10 | 株式会社小松製作所 | 流量応援用方向制御弁 |
JPH08135602A (ja) * | 1994-11-04 | 1996-05-31 | Hitachi Constr Mach Co Ltd | 方向制御弁 |
US6675904B2 (en) | 2001-12-20 | 2004-01-13 | Volvo Construction Equipment Holding Sweden Ab | Apparatus for controlling an amount of fluid for heavy construction equipment |
US6745564B2 (en) * | 2001-12-21 | 2004-06-08 | Volvo Construction Equipment Holding Sweden Ab | Hydraulic variable control apparatus for heavy construction equipment |
-
2004
- 2004-02-24 KR KR1020040012334A patent/KR100652871B1/ko active IP Right Grant
- 2004-06-07 JP JP2004167999A patent/JP4088606B2/ja not_active Expired - Fee Related
- 2004-06-16 US US10/869,403 patent/US7017470B2/en not_active Expired - Lifetime
- 2004-07-13 DE DE602004027115T patent/DE602004027115D1/de not_active Expired - Lifetime
- 2004-07-13 EP EP04016422A patent/EP1568892B1/en not_active Expired - Lifetime
- 2004-07-23 CN CNB2004100545777A patent/CN1328516C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR100652871B1 (ko) | 2006-12-06 |
EP1568892B1 (en) | 2010-05-12 |
KR20050086019A (ko) | 2005-08-30 |
CN1661242A (zh) | 2005-08-31 |
EP1568892A2 (en) | 2005-08-31 |
DE602004027115D1 (de) | 2010-06-24 |
US20050183571A1 (en) | 2005-08-25 |
JP2005240994A (ja) | 2005-09-08 |
CN1328516C (zh) | 2007-07-25 |
EP1568892A3 (en) | 2005-10-19 |
US7017470B2 (en) | 2006-03-28 |
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