CN117881853A - 挖土机 - Google Patents

挖土机 Download PDF

Info

Publication number
CN117881853A
CN117881853A CN202280058374.1A CN202280058374A CN117881853A CN 117881853 A CN117881853 A CN 117881853A CN 202280058374 A CN202280058374 A CN 202280058374A CN 117881853 A CN117881853 A CN 117881853A
Authority
CN
China
Prior art keywords
travel
main pump
end point
hydraulic
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.)
Pending
Application number
CN202280058374.1A
Other languages
English (en)
Chinese (zh)
Inventor
西川原理一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo SHI Construction Machinery Co Ltd
Original Assignee
Sumitomo SHI Construction Machinery Co Ltd
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 Sumitomo SHI Construction Machinery Co Ltd filed Critical Sumitomo SHI Construction Machinery Co Ltd
Publication of CN117881853A publication Critical patent/CN117881853A/zh
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)
CN202280058374.1A 2021-10-29 2022-10-27 挖土机 Pending CN117881853A (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2021-178372 2021-10-29
JP2021178372 2021-10-29
PCT/JP2022/040244 WO2023074822A1 (ja) 2021-10-29 2022-10-27 ショベル

Publications (1)

Publication Number Publication Date
CN117881853A true CN117881853A (zh) 2024-04-12

Family

ID=86159953

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202280058374.1A Pending CN117881853A (zh) 2021-10-29 2022-10-27 挖土机

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

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

Also Published As

Publication number Publication date
WO2023074822A1 (ja) 2023-05-04
US20240263424A1 (en) 2024-08-08
EP4424928A1 (en) 2024-09-04
JPWO2023074822A1 (https=) 2023-05-04
KR20240087640A (ko) 2024-06-19
EP4424928A4 (en) 2025-02-19

Similar Documents

Publication Publication Date Title
CN106795707B (zh) 挖土机
US11788255B2 (en) Working machine
CN111989441B (zh) 油压挖掘机驱动系统
JP7530340B2 (ja) 作業機の油圧システム
WO2018151275A1 (ja) 油圧機械の制御装置
US7788915B2 (en) Hydraulic circuit
US11781288B2 (en) Shovel
CN117881853A (zh) 挖土机
US12312773B2 (en) Excavator
JP3634980B2 (ja) 建設機械の制御装置
JP2022033089A (ja) 作業機
US11946227B2 (en) Working machine
JP3645740B2 (ja) 建設機械の制御装置
JP6936687B2 (ja) 作業車両
US12565758B2 (en) Shovel
JP3612253B2 (ja) 建設機械の制御装置及びその制御方法
JP2884899B2 (ja) 建設機械の走行速度制御方法
CN117897538A (zh) 挖土机
JP2024094161A (ja) ショベル
JP2008168962A (ja) 作業車両のステアリングおよび作業機の制御装置
JP2000309949A (ja) 建設機械の制御装置

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination