KR20240087640A - 쇼벨 - Google Patents

쇼벨 Download PDF

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Publication number
KR20240087640A
KR20240087640A KR1020247006058A KR20247006058A KR20240087640A KR 20240087640 A KR20240087640 A KR 20240087640A KR 1020247006058 A KR1020247006058 A KR 1020247006058A KR 20247006058 A KR20247006058 A KR 20247006058A KR 20240087640 A KR20240087640 A KR 20240087640A
Authority
KR
South Korea
Prior art keywords
main pump
travel
pressure
hydraulic oil
control
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.)
Pending
Application number
KR1020247006058A
Other languages
English (en)
Korean (ko)
Inventor
리이치 니시카와라
Original Assignee
스미토모 겐키 가부시키가이샤
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 by 스미토모 겐키 가부시키가이샤 filed Critical 스미토모 겐키 가부시키가이샤
Publication of KR20240087640A publication Critical patent/KR20240087640A/ko
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)
KR1020247006058A 2021-10-29 2022-10-27 쇼벨 Pending KR20240087640A (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2021178372 2021-10-29
JPJP-P-2021-178372 2021-10-29
PCT/JP2022/040244 WO2023074822A1 (ja) 2021-10-29 2022-10-27 ショベル

Publications (1)

Publication Number Publication Date
KR20240087640A true KR20240087640A (ko) 2024-06-19

Family

ID=86159953

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020247006058A Pending KR20240087640A (ko) 2021-10-29 2022-10-27 쇼벨

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=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118110234B (zh) * 2024-01-25 2025-08-22 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

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4843105B1 (https=) 1969-02-11 1973-12-17

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4843105B1 (https=) 1969-02-11 1973-12-17

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
JPWO2023074822A1 (https=) 2023-05-04
EP4424928A4 (en) 2025-02-19

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St.27 status event code: A-0-1-A10-A15-nap-PA0105

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St.27 status event code: A-1-1-Q10-Q12-nap-PG1501

P11 Amendment of application requested

Free format text: ST27 STATUS EVENT CODE: A-2-2-P10-P11-NAP-X000 (AS PROVIDED BY THE NATIONAL OFFICE)

P11-X000 Amendment of application requested

St.27 status event code: A-2-2-P10-P11-nap-X000

P13 Application amended

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P13-X000 Application amended

St.27 status event code: A-2-2-P10-P13-nap-X000