JPWO2023074822A1 - - Google Patents

Info

Publication number
JPWO2023074822A1
JPWO2023074822A1 JP2023556653A JP2023556653A JPWO2023074822A1 JP WO2023074822 A1 JPWO2023074822 A1 JP WO2023074822A1 JP 2023556653 A JP2023556653 A JP 2023556653A JP 2023556653 A JP2023556653 A JP 2023556653A JP WO2023074822 A1 JPWO2023074822 A1 JP WO2023074822A1
Authority
JP
Japan
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.)
Pending
Application number
JP2023556653A
Other languages
Japanese (ja)
Other versions
JPWO2023074822A5 (https=
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of JPWO2023074822A1 publication Critical patent/JPWO2023074822A1/ja
Publication of JPWO2023074822A5 publication Critical patent/JPWO2023074822A5/ja
Pending legal-status Critical Current

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
    • 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
    • E02F9/2253—Controlling the travelling speed of vehicles, e.g. adjusting travelling speed according to implement loads, control of hydrostatic transmission
    • 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
    • E02F9/2232—Control of flow rate; Load sensing arrangements using one or more variable displacement pumps
    • E02F9/2235—Control of flow rate; Load sensing arrangements using one or more variable displacement pumps 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
    • E02F9/225—Control of steering, e.g. for hydraulic motors driving the vehicle tracks
    • 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
    • E02F9/2282—Systems using center bypass type changeover 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
    • 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
    • E02F9/2292—Systems with two or more pumps
    • 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
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/40—Special vehicles
    • B60Y2200/41—Construction vehicles, e.g. graders, excavators
    • B60Y2200/412—Excavators
    • 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
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control 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
    • F15B2211/45—Control of bleed-off flow, e.g. control of bypass flow to the return line

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)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
JP2023556653A 2021-10-29 2022-10-27 Pending JPWO2023074822A1 (https=)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021178372 2021-10-29
PCT/JP2022/040244 WO2023074822A1 (ja) 2021-10-29 2022-10-27 ショベル

Publications (2)

Publication Number Publication Date
JPWO2023074822A1 true JPWO2023074822A1 (https=) 2023-05-04
JPWO2023074822A5 JPWO2023074822A5 (https=) 2024-07-18

Family

ID=86159953

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2023556653A Pending JPWO2023074822A1 (https=) 2021-10-29 2022-10-27

Country Status (6)

Country Link
US (1) US20240263424A1 (https=)
EP (1) EP4424928A4 (https=)
JP (1) JPWO2023074822A1 (https=)
KR (1) KR20240087640A (https=)
CN (1) CN117881853A (https=)
WO (1) WO2023074822A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118110234A (zh) * 2024-01-25 2024-05-31 徐州徐工挖掘机械有限公司 一种液压油低温自动加热的挖掘机液压系统及挖掘机

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3708545A (en) 1969-02-11 1973-01-02 Du Pont Process for the preparation of p-nitrophenol and metal salts thereof using ammonia to control the isomer distribution
US5295795A (en) * 1991-04-12 1994-03-22 Hitachi Construction Machinery Co., Ltd. Hydraulic drive system for construction machine
JP2933806B2 (ja) * 1993-09-09 1999-08-16 日立建機株式会社 建設機械の油圧駆動装置
JP4212225B2 (ja) * 2000-07-28 2009-01-21 株式会社小松製作所 建設機械における走行油圧回路
JP5107200B2 (ja) * 2008-09-25 2012-12-26 住友建機株式会社 油圧ポンプ制御装置
JP5631882B2 (ja) * 2008-09-30 2014-11-26 ボルボ コンストラクション イクイップメント アーベー 第１および第２操舵部材を含む油圧操舵システム、ならびに油圧操舵システムを含む車両
JP4843105B2 (ja) 2008-11-28 2011-12-21 住友重機械工業株式会社 ハイブリッド式作業機械の制御方法、及びハイブリッド式作業機械のポンプ出力制限方法
JP5985268B2 (ja) * 2012-06-22 2016-09-06 住友重機械工業株式会社 建設機械用油圧システム
JP6071821B2 (ja) * 2013-09-18 2017-02-01 川崎重工業株式会社 液圧駆動装置
JP6082690B2 (ja) * 2013-12-06 2017-02-15 日立建機株式会社 建設機械の油圧駆動装置
KR102426644B1 (ko) * 2016-12-06 2022-07-27 스미토모 겐키 가부시키가이샤 건설기계
KR102456265B1 (ko) * 2017-07-05 2022-10-18 스미토모 겐키 가부시키가이샤 쇼벨 및 쇼벨의 제어방법
JP7130474B2 (ja) * 2018-07-11 2022-09-05 住友建機株式会社 ショベル
WO2020184606A1 (ja) * 2019-03-11 2020-09-17 住友建機株式会社 ショベル及びショベルの制御方法
WO2021029399A1 (ja) * 2019-08-09 2021-02-18 住友建機株式会社 ショベル
JP7493381B2 (ja) 2020-05-12 2024-05-31 Ｄｇｓｈａｐｅ株式会社 切削加工機
CN117500986A (zh) * 2021-06-28 2024-02-02 斗山山猫北美公司 用于控制挖掘机和其他动力机器的系统和方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118110234A (zh) * 2024-01-25 2024-05-31 徐州徐工挖掘机械有限公司 一种液压油低温自动加热的挖掘机液压系统及挖掘机

Also Published As

Publication number Publication date
CN117881853A (zh) 2024-04-12
WO2023074822A1 (ja) 2023-05-04
US20240263424A1 (en) 2024-08-08
EP4424928A1 (en) 2024-09-04
KR20240087640A (ko) 2024-06-19
EP4424928A4 (en) 2025-02-19

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