JP6792380B2 - 建設機械の油圧駆動システム - Google Patents
建設機械の油圧駆動システム Download PDFInfo
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- JP6792380B2 JP6792380B2 JP2016171402A JP2016171402A JP6792380B2 JP 6792380 B2 JP6792380 B2 JP 6792380B2 JP 2016171402 A JP2016171402 A JP 2016171402A JP 2016171402 A JP2016171402 A JP 2016171402A JP 6792380 B2 JP6792380 B2 JP 6792380B2
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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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
-
- 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
-
- 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
-
- 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
- E02F9/2004—Control mechanisms, e.g. control levers
-
- 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
-
- 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
- E02F9/2228—Control of flow rate; Load sensing arrangements using pressure-compensating valves including an electronic controller
-
- 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
- E02F9/2285—Pilot-operated systems
-
- 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
- E02F9/2289—Closed circuit
-
- 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
- F15B11/0406—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed during starting or stopping
-
- 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
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- 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
- F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
- F15B13/043—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves
- F15B13/0433—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves the pilot valves being pressure control 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
- F15B21/087—Control strategy, e.g. with block diagram
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/54—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with pneumatic or hydraulic motors, e.g. for actuating jib-cranes on tractors
-
- 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
- F15B2211/355—Pilot pressure 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
- F15B2211/30—Directional control
- F15B2211/36—Pilot pressure sensing
-
- 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
- F15B2211/50554—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure downstream of the pressure control means, e.g. pressure reducing 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
- F15B2211/60—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
- F15B2211/6316—Electronic controllers using input signals representing a pressure the pressure being a pilot 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
- F15B2211/635—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements
- F15B2211/6355—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements having valve 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/67—Methods for controlling pilot 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
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/85—Control during special operating conditions
- F15B2211/853—Control during special operating conditions during stopping
-
- 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
- F15B2211/86—Control during or prevention of abnormal conditions
- F15B2211/8606—Control during or prevention of abnormal conditions the abnormal condition being a shock
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- 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)
Description
本発明は上述した実施形態に限定されるものではなく、本発明の要旨を逸脱しない範囲で種々の変形が可能である。
3 油圧アクチュエータ
4 制御弁
41,42 パイロットポート
51,52 パイロットライン
6 パイロット操作弁
7 電磁比例減圧弁
P 一次圧ポート
A 二次圧ポート
T タンクポート
8 制御装置
81 圧力センサ(操作検出器)
Claims (4)
- 油圧アクチュエータと、
前記油圧アクチュエータに対する作動油の供給および排出を制御する、一対のパイロットポートを有する制御弁と、
一対のパイロットラインにより前記一対のパイロットポートと接続された、操作レバーを含むパイロット操作弁と、
前記一対のパイロットラインの少なくとも一方に設けられた、一次圧ポート、二次圧ポートおよびタンクポートを有する電磁比例減圧弁と、
前記操作レバーの傾倒角に応じた操作量信号を出力する操作検出器と、
前記操作検出器から出力される操作量信号の単位時間当たりの変化量が閾値以上に低下した直後から、前記二次圧ポートと前記タンクポートとの連通によって前記制御弁のパイロットポートの圧力が徐々にゼロまで低下するように、前記電磁比例減圧弁を制御する制御装置と、を備え、
前記制御装置は、前記操作検出器から出力される操作量信号の単位時間当たりの変化量が前記閾値以上に低下した直後に前記電磁比例減圧弁へ送給する指令電流を所定値まで変更して前記二次圧ポートを前記タンクポートと連通させ、その後に前記電磁比例減圧弁へ送給する指令電流を徐々に増加または減少させる、建設機械の油圧駆動システム。 - 作動油の温度を検出する温度センサをさらに備え、
前記制御装置は、前記温度センサで検出される作動油の温度が低いほど、指令電流を前記所定値から徐々に増加または減少させる速度を大きくする、請求項1に記載の建設機械の油圧駆動システム。 - 前記パイロット操作弁と前記電磁比例減圧弁との間で前記パイロットラインにチェック弁が設けられていない、請求項1または2に記載の建設機械の油圧駆動システム。
- 油圧アクチュエータと、
前記油圧アクチュエータに対する作動油の供給および排出を制御する、一対のパイロットポートを有する制御弁と、
一対のパイロットラインにより前記一対のパイロットポートと接続された、操作レバーを含むパイロット操作弁と、
前記一対のパイロットラインの少なくとも一方に設けられた、一次圧ポート、二次圧ポートおよびタンクポートを有する電磁比例減圧弁と、
前記操作レバーの傾倒角に応じた操作量信号を出力する操作検出器と、
前記操作検出器から出力される操作量信号の単位時間当たりの変化量が閾値以上に低下した直後から、前記二次圧ポートと前記タンクポートとの連通によって前記制御弁のパイロットポートの圧力が徐々にゼロまで低下するように、前記電磁比例減圧弁を制御する制御装置と、を備え、
前記電磁比例減圧弁は、二次圧と指令電流とが負の相関を示す逆比例型であり、
前記制御装置は、前記操作検出器から出力される操作量信号の単位時間当たりの変化量が前記閾値以上に低下した直後から所定時間経過するまでの期間以外は、前記電磁比例減圧弁へ送給する指令電流をゼロとする、建設機械の油圧駆動システム。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016171402A JP6792380B2 (ja) | 2016-09-02 | 2016-09-02 | 建設機械の油圧駆動システム |
CN201780053425.0A CN109642590B (zh) | 2016-09-02 | 2017-08-28 | 建设机械的油压驱动*** |
PCT/JP2017/030742 WO2018043401A1 (ja) | 2016-09-02 | 2017-08-28 | 建設機械の油圧駆動システム |
GB1904598.8A GB2569071B (en) | 2016-09-02 | 2017-08-28 | Hydraulic drive system of construction machine |
US16/330,186 US10844577B2 (en) | 2016-09-02 | 2017-08-28 | Hydraulic drive system of construction machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2016171402A JP6792380B2 (ja) | 2016-09-02 | 2016-09-02 | 建設機械の油圧駆動システム |
Publications (2)
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JP2018035909A JP2018035909A (ja) | 2018-03-08 |
JP6792380B2 true JP6792380B2 (ja) | 2020-11-25 |
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JP2016171402A Active JP6792380B2 (ja) | 2016-09-02 | 2016-09-02 | 建設機械の油圧駆動システム |
Country Status (5)
Country | Link |
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US (1) | US10844577B2 (ja) |
JP (1) | JP6792380B2 (ja) |
CN (1) | CN109642590B (ja) |
GB (1) | GB2569071B (ja) |
WO (1) | WO2018043401A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113738726A (zh) * | 2021-09-09 | 2021-12-03 | 浙江苏强格液压股份有限公司 | 一种反比例减压阀 |
CN114396400B (zh) * | 2022-01-07 | 2023-07-28 | 中国商用飞机有限责任公司 | 作动器和作动*** |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
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JP3363608B2 (ja) | 1994-09-19 | 2003-01-08 | 日立建機株式会社 | 建設機械の操作システム |
JP3380074B2 (ja) * | 1994-12-26 | 2003-02-24 | 日立建機株式会社 | 建設機械の操作システム |
JPH09235756A (ja) * | 1996-02-28 | 1997-09-09 | Yutani Heavy Ind Ltd | 油圧リモコン回路 |
JP2013100883A (ja) * | 2011-11-09 | 2013-05-23 | Hitachi Constr Mach Co Ltd | 建設機械の油圧駆動装置 |
JP5863561B2 (ja) * | 2012-05-15 | 2016-02-16 | 日立住友重機械建機クレーン株式会社 | 油圧ウインチの制御装置 |
CN202969446U (zh) * | 2012-11-30 | 2013-06-05 | 中联重科股份有限公司渭南分公司 | 液压控制装置和工程机械 |
JP5873456B2 (ja) * | 2013-04-05 | 2016-03-01 | 川崎重工業株式会社 | 作業機械の駆動制御システム、それを備える作業機械、及びその駆動制御方法 |
JP6190763B2 (ja) * | 2014-06-05 | 2017-08-30 | 日立建機株式会社 | ハイブリッド式建設機械 |
-
2016
- 2016-09-02 JP JP2016171402A patent/JP6792380B2/ja active Active
-
2017
- 2017-08-28 WO PCT/JP2017/030742 patent/WO2018043401A1/ja active Application Filing
- 2017-08-28 US US16/330,186 patent/US10844577B2/en active Active
- 2017-08-28 CN CN201780053425.0A patent/CN109642590B/zh active Active
- 2017-08-28 GB GB1904598.8A patent/GB2569071B/en active Active
Also Published As
Publication number | Publication date |
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GB201904598D0 (en) | 2019-05-15 |
CN109642590B (zh) | 2020-07-31 |
GB2569071A (en) | 2019-06-05 |
US10844577B2 (en) | 2020-11-24 |
GB2569071B (en) | 2021-10-13 |
WO2018043401A1 (ja) | 2018-03-08 |
CN109642590A (zh) | 2019-04-16 |
JP2018035909A (ja) | 2018-03-08 |
US20190211531A1 (en) | 2019-07-11 |
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