KR840000545U - 유압셔블의 유압회로 - Google Patents
유압셔블의 유압회로Info
- Publication number
- KR840000545U KR840000545U KR2019820005421U KR820005421U KR840000545U KR 840000545 U KR840000545 U KR 840000545U KR 2019820005421 U KR2019820005421 U KR 2019820005421U KR 820005421 U KR820005421 U KR 820005421U KR 840000545 U KR840000545 U KR 840000545U
- Authority
- KR
- South Korea
- Prior art keywords
- hydraulic
- excavator
- circuit
- hydraulic circuit
- hydraulic excavator
- Prior art date
Links
Classifications
-
- 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
- E02F9/2239—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance
-
- 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
- E02F9/2278—Hydraulic circuits
- E02F9/2292—Systems with two or more pumps
-
- 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
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
-
- 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
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20576—Systems with pumps with multiple pumps
-
- 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
- F15B2211/30505—Non-return valves, i.e. check valves
-
- 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
- F15B2211/3056—Assemblies of multiple valves
- F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-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
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/3056—Assemblies of multiple valves
- F15B2211/3059—Assemblies of multiple valves having multiple valves for multiple output members
- F15B2211/30595—Assemblies of multiple valves having multiple valves for multiple output members with additional valves between the groups of valves for 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
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
- F15B2211/7142—Multiple output members, e.g. multiple hydraulic motors or cylinders the output members being arranged in multiple groups
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1981101830U JPS5810960U (ja) | 1981-07-10 | 1981-07-10 | 油圧ショベルの油圧回路 |
JP101830 | 1981-07-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR840000545U true KR840000545U (ko) | 1984-02-24 |
KR870000935Y1 KR870000935Y1 (ko) | 1987-03-14 |
Family
ID=14311009
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019820005421U KR870000935Y1 (ko) | 1981-07-10 | 1982-07-09 | 유압셔블의 유압회로 |
Country Status (5)
Country | Link |
---|---|
US (1) | US4534268A (ko) |
EP (1) | EP0070005B1 (ko) |
JP (1) | JPS5810960U (ko) |
KR (1) | KR870000935Y1 (ko) |
DE (1) | DE3269163D1 (ko) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59186502U (ja) * | 1983-05-31 | 1984-12-11 | 株式会社小松製作所 | 方向切換弁 |
JPS6233950A (ja) * | 1985-08-06 | 1987-02-13 | Hitachi Constr Mach Co Ltd | 油圧機械の油圧回路 |
US4838756A (en) * | 1987-02-19 | 1989-06-13 | Deere & Company | Hydraulic system for an industrial machine |
US4984427A (en) * | 1989-09-01 | 1991-01-15 | Kabushiki Kaisha Kobe Seiko Sho | Control circuit for hydraulic actuator |
JP3019671B2 (ja) * | 1993-05-27 | 2000-03-13 | ダイキン工業株式会社 | 超高圧制御装置 |
JPH07238575A (ja) * | 1994-02-28 | 1995-09-12 | Komatsu Ltd | 走行用油圧装置 |
JPH1113091A (ja) * | 1997-06-23 | 1999-01-19 | Hitachi Constr Mach Co Ltd | 建設機械の油圧駆動装置 |
JP4721353B2 (ja) * | 2006-06-29 | 2011-07-13 | キャタピラー エス エー アール エル | 弁制御装置 |
WO2019022164A1 (ja) * | 2017-07-27 | 2019-01-31 | 住友建機株式会社 | ショベル |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1431905A (fr) * | 1965-02-05 | 1966-03-18 | Auxitra Soc | Perfectionnements à la commande d'engins de travaux publics à plusieurs moteurs ouvérins |
DE2138986C3 (de) * | 1971-08-04 | 1978-09-07 | G.L. Rexroth Gmbh, 8770 Lohr | Steuerventileinrichtung für mehrere hydraulische Antriebe |
BE794481A (fr) * | 1972-01-24 | 1973-05-16 | Kubota Ltd | Pelle mecanique pour travaux de terrassement |
DE2203713A1 (de) * | 1972-01-27 | 1973-08-09 | Weyhausen Kg Maschf H | Schaltung fuer hydrostatisch betriebene arbeitsvorrichtungen |
US3760689A (en) * | 1972-02-24 | 1973-09-25 | Harnischfeger Corp | Control system for automatically sequencing operation of a plurality of hydraulic pumps for supplying a plurality of hydraulic actuators |
US4142445A (en) * | 1977-03-17 | 1979-03-06 | Caterpillar Tractor Co. | Crossover plural circuit fluid system |
US4073141A (en) * | 1977-03-17 | 1978-02-14 | Caterpillar Tractor Co. | Fluid control system with priority flow |
DE2856093A1 (de) * | 1978-12-23 | 1980-06-26 | Massey Ferguson Hanomag Inc & | Hydraulikanlage zur betaetigung von auf fahrzeugen aufgebauten arbeitsgeraeten, wie z.b. hydraulikbaggern, ladevorrichtungen usw. |
JPS55120802U (ko) * | 1979-02-20 | 1980-08-27 | ||
US4207740A (en) * | 1979-06-12 | 1980-06-17 | Akermans Verkstad Ab | Valve blocks, in particular for hydraulic excavators |
-
1981
- 1981-07-10 JP JP1981101830U patent/JPS5810960U/ja active Granted
-
1982
- 1982-07-09 US US06/396,878 patent/US4534268A/en not_active Expired - Lifetime
- 1982-07-09 KR KR2019820005421U patent/KR870000935Y1/ko active
- 1982-07-09 EP EP82106156A patent/EP0070005B1/en not_active Expired
- 1982-07-09 DE DE8282106156T patent/DE3269163D1/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
KR870000935Y1 (ko) | 1987-03-14 |
JPH0245316Y2 (ko) | 1990-11-30 |
JPS5810960U (ja) | 1983-01-24 |
EP0070005B1 (en) | 1986-02-19 |
US4534268A (en) | 1985-08-13 |
DE3269163D1 (en) | 1986-03-27 |
EP0070005A1 (en) | 1983-01-19 |
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