JP2016205492A - 流体圧回路および作業機械 - Google Patents
流体圧回路および作業機械 Download PDFInfo
- Publication number
- JP2016205492A JP2016205492A JP2015086577A JP2015086577A JP2016205492A JP 2016205492 A JP2016205492 A JP 2016205492A JP 2015086577 A JP2015086577 A JP 2015086577A JP 2015086577 A JP2015086577 A JP 2015086577A JP 2016205492 A JP2016205492 A JP 2016205492A
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- Prior art keywords
- accumulator
- pressure
- boom
- valve
- fluid pressure
- 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
- 239000012530 fluid Substances 0.000 title claims abstract description 74
- 238000009825 accumulation Methods 0.000 claims description 5
- 230000001172 regenerating effect Effects 0.000 claims description 4
- 239000010720 hydraulic oil Substances 0.000 description 17
- 239000003921 oil Substances 0.000 description 15
- 238000011084 recovery Methods 0.000 description 15
- 230000008929 regeneration Effects 0.000 description 11
- 238000011069 regeneration method Methods 0.000 description 11
- 230000006870 function Effects 0.000 description 9
- 230000007423 decrease Effects 0.000 description 6
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000013642 negative control Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007659 motor function Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
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
- E02F9/2217—Hydraulic or pneumatic drives with energy recovery arrangements, e.g. using accumulators, flywheels
-
- 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
- E02F9/2296—Systems with a variable displacement pump
-
- 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
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/024—Installations or systems with accumulators used as a supplementary power source, e.g. to store energy in idle periods to balance pump load
-
- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/14—Energy-recuperation means
-
- 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
- F15B2211/20507—Type of prime mover
-
- 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
- F15B2211/20507—Type of prime mover
- F15B2211/20523—Internal combustion engine
-
- 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
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
- F15B2211/212—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being accumulators
-
- 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
- F15B2211/3058—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 having additional valves for interconnecting the fluid chambers of a double-acting actuator, e.g. for regeneration mode or for floating mode
-
- 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6306—Electronic controllers using input signals representing a 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6306—Electronic controllers using input signals representing a pressure
- F15B2211/6309—Electronic controllers using input signals representing a pressure the pressure being a pressure source supply 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/665—Methods of control using electronic components
-
- 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
- F15B2211/7051—Linear output members
- F15B2211/7053—Double-acting 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
- F15B2211/705—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
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
- F15B2211/7135—Combinations of output members of different types, e.g. single-acting cylinders with rotary motors
-
- 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
-
- 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
- F15B2211/76—Control of force or torque of the output member
- F15B2211/761—Control of a negative load, i.e. of a load generating hydraulic energy
-
- 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
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/88—Control measures for saving energy
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
- Operation Control Of Excavators (AREA)
Abstract
Description
B 再生回路
HE 作業機械としての油圧ショベル
1 機体
6 作業装置
7c1,7c2 流体圧シリンダとしてのブームシリンダ
12,13 ポンプとしてのメインポンプ
15 アシストモータ
46 アキュムレータである第1のアキュムレータ
61 一のバルブとしての制御弁
62 他のバルブとしてのメイン制御弁
Claims (4)
- 操作体の操作に応じてポンプから加圧供給された作動流体により同一動作を同時作動する複数の流体圧シリンダと、
作動流体により蓄圧されるアキュムレータと、
一の流体圧シリンダのヘッド側とアキュムレータとの連通量を変化させる一のバルブを備え、この一のバルブを介して一の流体圧シリンダのヘッド側から押し出された作動流体をアキュムレータに蓄圧させる蓄圧回路と、
蓄圧回路によりアキュムレータに蓄圧させるときに複数の流体圧シリンダのヘッド側間の連通を遮断するとともに複数の流体圧シリンダのうち他の流体圧シリンダのヘッド側と一および他の流体圧シリンダのそれぞれのロッド側とを連通する他のバルブを備え、この他のバルブを介して、他の流体圧シリンダのヘッド側から押し出された作動流体を一および他の流体圧シリンダに再生する再生回路とを具備し、
一のバルブは、操作体の操作量、一のバルブの前後差圧およびアキュムレータ圧に応じて一の流体圧シリンダのヘッド側とアキュムレータとの連通量を変化させる
ことを特徴とする流体圧回路。 - 一のバルブは、一のバルブの前後差圧が大きいときと、アキュムレータ圧が所定圧よりも低いときとの少なくともいずれかのときに一の流体圧シリンダのヘッド側とアキュムレータとの連通量を相対的に低減させる
ことを特徴とする請求項1記載の流体圧回路。 - ポンプに接続され、アキュムレータから吐出される蓄圧流体により動作してポンプ動作をアシストするアシストモータ
を具備したことを特徴とする請求項1または2記載の流体圧回路。 - 機体と、
機体に搭載された作業装置と、
作業装置を上下動する複数の流体圧シリンダに対して設けられた請求項1乃至3いずれか記載の流体圧回路と
を具備したことを特徴とする作業機械。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015086577A JP6532081B2 (ja) | 2015-04-21 | 2015-04-21 | 流体圧回路および作業機械 |
PCT/EP2016/058685 WO2016169943A1 (en) | 2015-04-21 | 2016-04-20 | Hydraulic circuit and working machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015086577A JP6532081B2 (ja) | 2015-04-21 | 2015-04-21 | 流体圧回路および作業機械 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2016205492A true JP2016205492A (ja) | 2016-12-08 |
JP6532081B2 JP6532081B2 (ja) | 2019-06-19 |
Family
ID=55862748
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2015086577A Active JP6532081B2 (ja) | 2015-04-21 | 2015-04-21 | 流体圧回路および作業機械 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP6532081B2 (ja) |
WO (1) | WO2016169943A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016205497A (ja) * | 2015-04-21 | 2016-12-08 | キャタピラー エス エー アール エル | 流体圧回路および作業機械 |
WO2020204237A1 (ko) * | 2019-04-05 | 2020-10-08 | 볼보 컨스트럭션 이큅먼트 에이비 | 유압기계 |
WO2020204235A1 (ko) * | 2019-04-05 | 2020-10-08 | 볼보 컨스트럭션 이큅먼트 에이비 | 유압기계 |
WO2022201792A1 (ja) | 2021-03-24 | 2022-09-29 | 日立建機株式会社 | 作業機械 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6636977B2 (ja) * | 2017-03-14 | 2020-01-29 | 日立建機株式会社 | 作業機械の油圧駆動装置 |
CN108915009B (zh) * | 2018-07-09 | 2021-04-16 | 德润液压科技(常州)有限公司 | 一种挖掘机回转液压系统 |
CN108894274B (zh) * | 2018-07-27 | 2020-10-16 | 徐州工业职业技术学院 | 一种挖掘机回转能量回收和再利用系统 |
CN117043472A (zh) * | 2021-03-31 | 2023-11-10 | 伊格尔工业股份有限公司 | 流体回路 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007205570A (ja) * | 2006-01-30 | 2007-08-16 | Caterpillar Inc | 油圧再生システム |
US20090025379A1 (en) * | 2007-07-24 | 2009-01-29 | Parker-Hannifin Corporation | System for recovering energy from a hydraulic lift |
JP2010060056A (ja) * | 2008-09-04 | 2010-03-18 | Caterpillar Japan Ltd | 作業機械における油圧制御システム |
US20140150415A1 (en) * | 2012-12-04 | 2014-06-05 | Caterpillar Inc. | Energy Recovery Hydraulic System |
-
2015
- 2015-04-21 JP JP2015086577A patent/JP6532081B2/ja active Active
-
2016
- 2016-04-20 WO PCT/EP2016/058685 patent/WO2016169943A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2007205570A (ja) * | 2006-01-30 | 2007-08-16 | Caterpillar Inc | 油圧再生システム |
US20090025379A1 (en) * | 2007-07-24 | 2009-01-29 | Parker-Hannifin Corporation | System for recovering energy from a hydraulic lift |
JP2010060056A (ja) * | 2008-09-04 | 2010-03-18 | Caterpillar Japan Ltd | 作業機械における油圧制御システム |
US20140150415A1 (en) * | 2012-12-04 | 2014-06-05 | Caterpillar Inc. | Energy Recovery Hydraulic System |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016205497A (ja) * | 2015-04-21 | 2016-12-08 | キャタピラー エス エー アール エル | 流体圧回路および作業機械 |
WO2020204237A1 (ko) * | 2019-04-05 | 2020-10-08 | 볼보 컨스트럭션 이큅먼트 에이비 | 유압기계 |
WO2020204235A1 (ko) * | 2019-04-05 | 2020-10-08 | 볼보 컨스트럭션 이큅먼트 에이비 | 유압기계 |
CN113950555A (zh) * | 2019-04-05 | 2022-01-18 | 沃尔沃建筑设备公司 | 液压机械 |
US11802390B2 (en) | 2019-04-05 | 2023-10-31 | Volvo Construction Equipment Ab | Hydraulic machinery |
US11892014B2 (en) | 2019-04-05 | 2024-02-06 | Volvo Construction Equipment Ab | Hydraulic machine |
WO2022201792A1 (ja) | 2021-03-24 | 2022-09-29 | 日立建機株式会社 | 作業機械 |
KR20230117219A (ko) | 2021-03-24 | 2023-08-07 | 히다치 겡키 가부시키 가이샤 | 작업 기계 |
US12049744B2 (en) | 2021-03-24 | 2024-07-30 | Hitachi Construction Machinery Co., Ltd. | Work machine |
Also Published As
Publication number | Publication date |
---|---|
JP6532081B2 (ja) | 2019-06-19 |
WO2016169943A1 (en) | 2016-10-27 |
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