HK1065837A1 - A hydraulic circuit for a crane - Google Patents
A hydraulic circuit for a craneInfo
- Publication number
- HK1065837A1 HK1065837A1 HK04108646A HK04108646A HK1065837A1 HK 1065837 A1 HK1065837 A1 HK 1065837A1 HK 04108646 A HK04108646 A HK 04108646A HK 04108646 A HK04108646 A HK 04108646A HK 1065837 A1 HK1065837 A1 HK 1065837A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- motor circuits
- crane
- hydraulic circuit
- switching valve
- simultaneous operation
- Prior art date
Links
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
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
-
- 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
- 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
- F15B2211/3056—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
- F15B2211/30—Directional control
- F15B2211/31—Directional control characterised by the positions of the valve element
- F15B2211/3105—Neutral or centre positions
- F15B2211/3116—Neutral or centre positions the pump port being open in the centre position, e.g. so-called open centre
-
- 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
- F15B2211/32—Directional control characterised by the type of actuation
- F15B2211/329—Directional 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
- F15B2211/30—Directional control
- F15B2211/35—Directional control combined with flow control
- F15B2211/351—Flow control by regulating means in feed line, i.e. meter-in 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
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
- F15B2211/50518—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using pressure relief 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
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50563—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential 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
- F15B2211/50—Pressure control
- F15B2211/55—Pressure control for limiting a pressure up to a maximum pressure, e.g. by using a pressure relief 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
- F15B2211/50—Pressure control
- F15B2211/57—Control of a differential 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
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7058—Rotary 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
- F15B2211/78—Control of multiple output members
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fluid-Pressure Circuits (AREA)
- Jib Cranes (AREA)
- Control And Safety Of Cranes (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Forklifts And Lifting Vehicles (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000229793A JP4290861B2 (ja) | 2000-07-28 | 2000-07-28 | クレーンの油圧回路 |
Publications (1)
Publication Number | Publication Date |
---|---|
HK1065837A1 true HK1065837A1 (en) | 2005-03-04 |
Family
ID=18722850
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK04108646A HK1065837A1 (en) | 2000-07-28 | 2004-11-03 | A hydraulic circuit for a crane |
Country Status (7)
Country | Link |
---|---|
US (1) | US6868671B2 (xx) |
EP (1) | EP1176115B1 (xx) |
JP (1) | JP4290861B2 (xx) |
CN (2) | CN1201092C (xx) |
AT (1) | ATE258144T1 (xx) |
DE (1) | DE60101824T2 (xx) |
HK (1) | HK1065837A1 (xx) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4262213B2 (ja) * | 2005-03-14 | 2009-05-13 | ヤンマー株式会社 | バックホーローダの油圧回路 |
JP4714489B2 (ja) * | 2005-03-16 | 2011-06-29 | 日立住友重機械建機クレーン株式会社 | クレーンの油圧回路 |
CN102190247B (zh) * | 2011-05-11 | 2013-03-27 | 三一汽车起重机械有限公司 | 液压先导控制系统及设有该系统的液压先导起重机 |
CN102297170A (zh) * | 2011-06-10 | 2011-12-28 | 中国一拖集团有限公司 | 多功能除雪车的液压系统 |
JP6015157B2 (ja) | 2011-07-01 | 2016-10-26 | コベルコ建機株式会社 | 建設機械 |
DE102011108851A1 (de) * | 2011-07-28 | 2013-01-31 | Liebherr-Werk Ehingen Gmbh | Kransteuerungssystem |
CN102556872B (zh) * | 2012-02-13 | 2014-06-25 | 中联重科股份有限公司 | 一种放绳液压控制系统、收绳液压控制系统和起重机 |
CN103807237B (zh) * | 2014-02-28 | 2016-02-10 | 贵州詹阳动力重工有限公司 | 双液压马达切换控制系统 |
US10029897B2 (en) * | 2014-04-30 | 2018-07-24 | Parker-Hannifin Corporation | Control valve and system with primary and auxiliary function control |
JP6246702B2 (ja) * | 2014-11-28 | 2017-12-13 | 日立住友重機械建機クレーン株式会社 | クレーンの油圧回路 |
JP7124610B2 (ja) * | 2018-09-28 | 2022-08-24 | コベルコ建機株式会社 | 建設機械の油圧装置 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3686862A (en) | 1971-04-14 | 1972-08-29 | Bucyrus Erie Co | Hydraulic system for single engine truck crane or the like |
US3922855A (en) * | 1971-12-13 | 1975-12-02 | Caterpillar Tractor Co | Hydraulic circuitry for an excavator |
JPS58146630A (ja) * | 1982-02-25 | 1983-09-01 | Hitachi Constr Mach Co Ltd | 油圧作業機械の油圧回路 |
JPH07116721B2 (ja) * | 1989-01-31 | 1995-12-13 | 油谷重工株式会社 | 油圧ショベルの油圧回路 |
JPH07122276B2 (ja) * | 1989-07-07 | 1995-12-25 | 油谷重工株式会社 | 建設機械の油圧ポンプ制御回路 |
EP0572678B1 (en) * | 1991-12-24 | 1997-03-12 | Hitachi Construction Machinery Co., Ltd. | Hydraulic driving apparatus for construction machines |
US5940997A (en) * | 1997-09-05 | 1999-08-24 | Hitachi Construction Machinery Co., Ltd. | Hydraulic circuit system for hydraulic working machine |
JPH11218102A (ja) * | 1997-11-11 | 1999-08-10 | Komatsu Ltd | 圧油供給装置 |
JP4111286B2 (ja) | 1998-06-30 | 2008-07-02 | コベルコ建機株式会社 | 建設機械の走行制御方法及び同装置 |
-
2000
- 2000-07-28 JP JP2000229793A patent/JP4290861B2/ja not_active Expired - Lifetime
-
2001
- 2001-07-16 US US09/904,512 patent/US6868671B2/en not_active Expired - Fee Related
- 2001-07-23 DE DE60101824T patent/DE60101824T2/de not_active Expired - Lifetime
- 2001-07-23 AT AT01117849T patent/ATE258144T1/de not_active IP Right Cessation
- 2001-07-23 EP EP20010117849 patent/EP1176115B1/en not_active Expired - Lifetime
- 2001-07-24 CN CNB011206659A patent/CN1201092C/zh not_active Expired - Fee Related
- 2001-07-24 CN CNB031566847A patent/CN1296626C/zh not_active Expired - Fee Related
-
2004
- 2004-11-03 HK HK04108646A patent/HK1065837A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP1176115A1 (en) | 2002-01-30 |
EP1176115B1 (en) | 2004-01-21 |
JP2002046978A (ja) | 2002-02-12 |
DE60101824T2 (de) | 2004-12-02 |
JP4290861B2 (ja) | 2009-07-08 |
CN1515801A (zh) | 2004-07-28 |
CN1336492A (zh) | 2002-02-20 |
US20020014074A1 (en) | 2002-02-07 |
ATE258144T1 (de) | 2004-02-15 |
DE60101824D1 (de) | 2004-02-26 |
CN1296626C (zh) | 2007-01-24 |
US6868671B2 (en) | 2005-03-22 |
CN1201092C (zh) | 2005-05-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |
Effective date: 20110724 |