EP2251550A3 - Hydraulic system and mobile construction machine - Google Patents
Hydraulic system and mobile construction machine Download PDFInfo
- Publication number
- EP2251550A3 EP2251550A3 EP10004221.7A EP10004221A EP2251550A3 EP 2251550 A3 EP2251550 A3 EP 2251550A3 EP 10004221 A EP10004221 A EP 10004221A EP 2251550 A3 EP2251550 A3 EP 2251550A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- hydraulic system
- construction machine
- mobile construction
- cylinder units
- 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.)
- Granted
Links
- 238000010276 construction Methods 0.000 title 1
Classifications
-
- 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
- F15B11/22—Synchronisation of the movement of two or more servomotors
-
- 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
-
- 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
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
- F15B20/005—Leakage; Spillage; Hose burst
-
- 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
- F15B2211/40553—Flow control characterised by the type of flow control means or valve with pressure compensating 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
- F15B2211/40—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
- F15B2211/465—Flow control with pressure compensation
-
- 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
- F15B2211/7114—Multiple output members, e.g. multiple hydraulic motors or cylinders with direct connection between the chambers of different actuators
- F15B2211/7128—Multiple output members, e.g. multiple hydraulic motors or cylinders with direct connection between the chambers of different actuators the chambers being connected in parallel
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
- Operation Control Of Excavators (AREA)
Abstract
Die vorliegende Erfindung betrifft ein Hydrauliksystem mit wenigstens zwei Kolbenzylindereinheiten, wenigstens einer Ausgleichsleitung zum Druckausgleich zwischen den Kolbenzylindereinheiten und Steuerkolben, wobei je ein Steuerkolben einem Anschluss einer Kolbenzylindereinheit zugeordnet ist, und wobei wenigstens ein 2-Wege-Stromregelventil mit Rückschlagventilfunktion mit der wenigstens einen Ausgleichsleitung in Verbindung steht. The present invention relates to a hydraulic system having at least two piston-cylinder units, at least one equalization line for pressure equalization between the piston-cylinder units and control piston, wherein each one control piston associated with a port of a piston-cylinder unit, and wherein at least one 2-way flow control valve with check valve function with the at least one compensation line in Connection stands.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202009006299U DE202009006299U1 (en) | 2009-04-29 | 2009-04-29 | Hydraulic system as well as mobile construction machine |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2251550A2 EP2251550A2 (en) | 2010-11-17 |
EP2251550A3 true EP2251550A3 (en) | 2013-11-06 |
EP2251550B1 EP2251550B1 (en) | 2018-09-12 |
Family
ID=42635269
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10004221.7A Active EP2251550B1 (en) | 2009-04-29 | 2010-04-21 | mobile construction machine with a hydraulic system |
Country Status (6)
Country | Link |
---|---|
US (1) | US20100275771A1 (en) |
EP (1) | EP2251550B1 (en) |
CA (1) | CA2701473A1 (en) |
DE (1) | DE202009006299U1 (en) |
ES (1) | ES2701181T3 (en) |
TR (1) | TR201819106T4 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104481953B (en) * | 2014-12-12 | 2016-06-15 | 燕山大学 | The pile-up valve that independently controls of throttling limit that assignment of traffic is unrelated with load pressure |
US9863120B2 (en) * | 2015-04-29 | 2018-01-09 | Caterpillar Inc. | System and method for controlling a machine implement |
IT201800007167A1 (en) * | 2018-07-13 | 2020-01-13 | BALANCING DEVICE |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1948293A1 (en) * | 1969-09-24 | 1971-03-25 | Rexroth Gmbh G L | Hydraulic system consisting of at least two consumers |
GB2055977A (en) * | 1979-07-26 | 1981-03-11 | Fiat Allis Construct Machine | Hydraulic control systems |
US6357549B1 (en) * | 1999-06-03 | 2002-03-19 | D. H. Blattner & Sons, Inc. | Guide rail climbing lifting platform and method |
WO2007019712A1 (en) * | 2005-08-19 | 2007-02-22 | Bucher Hydraulics Ag | Circuit for controlling a double-action hydraulic drive cylinder |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3213886A (en) * | 1962-10-22 | 1965-10-26 | Pearne And Lacy Machine Compan | Flow control valve with stop means movable at a controlled rate |
US3404650A (en) * | 1965-04-14 | 1968-10-08 | Manitowoc Shipbuilding Inc | System and apparatus for translating and discharging a load |
US3497894A (en) * | 1968-02-20 | 1970-03-03 | Earl Dallas Smith | Vehicle cleaning brush drive system |
US3535876A (en) * | 1969-02-27 | 1970-10-27 | Oilgear Co | Flow transducer |
US3831492A (en) * | 1972-12-04 | 1974-08-27 | Eaton Corp | Overload protection device for counterbalance vehicles |
US3891158A (en) * | 1973-07-13 | 1975-06-24 | Du Pont | Method and apparatus for splicing a standby web to a running web |
US4192346A (en) * | 1976-08-25 | 1980-03-11 | Shoketsu Kinzoku Kogyo Kabushiki Kaisha | Control valve |
DE2707630A1 (en) * | 1977-02-23 | 1978-08-24 | Orenstein & Koppel Ag | ELECTRONICALLY CONTROLLED PIPE BREAKAGE PROTECTION |
NL8001892A (en) * | 1980-03-31 | 1981-11-02 | Ihc Holland Nv | SPLITTER OR SIMILAR VESSEL. |
JPS56150601A (en) * | 1980-04-22 | 1981-11-21 | Toyooki Kogyo Co Ltd | Driving system for hydraulic actuator |
US4418609A (en) * | 1981-03-16 | 1983-12-06 | Wickline | Well pumping system |
US4516473A (en) * | 1981-05-07 | 1985-05-14 | Shokestu Kinzoku Kogyo Kabushiki Kaisha | Cylinder driving system |
US4522109A (en) * | 1983-11-21 | 1985-06-11 | J. I. Case Company | Leak-detecting hydraulic system |
DE3806916A1 (en) * | 1988-03-03 | 1989-09-14 | Daimler Benz Ag | VACUUM SUPPLY SYSTEM IN A MOTOR VEHICLE |
DE3901475C2 (en) * | 1989-01-19 | 1994-07-14 | Danfoss As | Fluid controlled servo assembly |
US5290048A (en) * | 1990-11-09 | 1994-03-01 | Nissan Motor Co., Ltd. | Working fluid circuit for active suspension control system of vehicle |
EP1160107B1 (en) * | 1999-02-09 | 2008-06-11 | Hitachi Construction Machinery Co., Ltd. | Wheel type working vehicle |
JP3598235B2 (en) * | 1999-03-10 | 2004-12-08 | Smc株式会社 | Pressure flow control valve |
US6425820B1 (en) * | 2000-03-30 | 2002-07-30 | Jack Kennedy Metal Products And Buildings, Inc. | Mine door power drive system |
US6505786B2 (en) * | 2000-06-23 | 2003-01-14 | Trioliet Mullos B.V. | Silage cutter |
US20060163859A1 (en) * | 2001-11-21 | 2006-07-27 | Gary Lehman | Stabilizing jack |
US6594954B1 (en) * | 2002-01-04 | 2003-07-22 | Jack Kennedy Metal Products & Buildings, Inc. | Mine door installation |
ITTO20020186A1 (en) * | 2002-03-06 | 2003-09-08 | Fiat Hitachi Excavators S P A | EARTH-MOVING VEHICLE, AND METHOD TO ADJUST THE DESCENT OF AN OPERATING ARM OF SUCH VEHICLE. |
US6640986B2 (en) * | 2002-03-07 | 2003-11-04 | Mi-Jack Products, Inc. | Anti-sway hydraulic system for grappler |
-
2009
- 2009-04-29 DE DE202009006299U patent/DE202009006299U1/en not_active Expired - Lifetime
-
2010
- 2010-04-21 EP EP10004221.7A patent/EP2251550B1/en active Active
- 2010-04-21 TR TR2018/19106T patent/TR201819106T4/en unknown
- 2010-04-21 ES ES10004221T patent/ES2701181T3/en active Active
- 2010-04-27 CA CA2701473A patent/CA2701473A1/en not_active Abandoned
- 2010-04-28 US US12/769,147 patent/US20100275771A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1948293A1 (en) * | 1969-09-24 | 1971-03-25 | Rexroth Gmbh G L | Hydraulic system consisting of at least two consumers |
GB2055977A (en) * | 1979-07-26 | 1981-03-11 | Fiat Allis Construct Machine | Hydraulic control systems |
US6357549B1 (en) * | 1999-06-03 | 2002-03-19 | D. H. Blattner & Sons, Inc. | Guide rail climbing lifting platform and method |
WO2007019712A1 (en) * | 2005-08-19 | 2007-02-22 | Bucher Hydraulics Ag | Circuit for controlling a double-action hydraulic drive cylinder |
Also Published As
Publication number | Publication date |
---|---|
US20100275771A1 (en) | 2010-11-04 |
EP2251550B1 (en) | 2018-09-12 |
ES2701181T3 (en) | 2019-02-21 |
DE202009006299U1 (en) | 2010-09-09 |
EP2251550A2 (en) | 2010-11-17 |
CA2701473A1 (en) | 2010-10-29 |
TR201819106T4 (en) | 2019-01-21 |
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