KR20240087638A - 쇼벨 - Google Patents

쇼벨 Download PDF

Info

Publication number
KR20240087638A
KR20240087638A KR1020247006056A KR20247006056A KR20240087638A KR 20240087638 A KR20240087638 A KR 20240087638A KR 1020247006056 A KR1020247006056 A KR 1020247006056A KR 20247006056 A KR20247006056 A KR 20247006056A KR 20240087638 A KR20240087638 A KR 20240087638A
Authority
KR
South Korea
Prior art keywords
valve
hydraulic
hydraulic oil
control valve
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
KR1020247006056A
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 KR20240087638A publication Critical patent/KR20240087638A/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
    • 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
    • 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
    • E02F9/2203—Arrangements for controlling the attitude of actuators, e.g. speed, floating function
    • 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
    • E02F9/2239—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance
    • E02F9/2242—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance 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
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2267—Valves or distributors
    • 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
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • 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
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
    • 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
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
    • E02F3/435—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like
    • 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)
KR1020247006056A 2021-10-29 2022-10-27 쇼벨 Pending KR20240087638A (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2021177017 2021-10-29
JPJP-P-2021-177017 2021-10-29
PCT/JP2022/040197 WO2023074810A1 (ja) 2021-10-29 2022-10-27 ショベル

Publications (1)

Publication Number Publication Date
KR20240087638A true KR20240087638A (ko) 2024-06-19

Family

ID=86160006

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020247006056A Pending KR20240087638A (ko) 2021-10-29 2022-10-27 쇼벨

Country Status (6)

Country Link
US (1) US12467232B2 (https=)
EP (1) EP4424929A4 (https=)
JP (1) JPWO2023074810A1 (https=)
KR (1) KR20240087638A (https=)
CN (1) CN117897538A (https=)
WO (1) WO2023074810A1 (https=)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016056442A1 (ja) 2014-10-06 2016-04-14 住友重機械工業株式会社 ショベル

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003004005A (ja) * 2001-06-22 2003-01-08 Kobelco Contstruction Machinery Ltd 建設機械の油圧制御回路
JP3816893B2 (ja) 2003-04-17 2006-08-30 日立建機株式会社 油圧駆動装置
US7178333B2 (en) * 2004-03-18 2007-02-20 Kobelco Construction Machinery Co., Ltd. Hydraulic control system for hydraulic excavator
JP5107195B2 (ja) * 2008-09-18 2012-12-26 住友建機株式会社 建設機械
JP5390875B2 (ja) * 2009-01-29 2014-01-15 株式会社小松製作所 作業車両、作業車両の制御方法、および、作業車両における油圧ポンプの斜板センサの較正方法
JP2013249849A (ja) * 2012-05-30 2013-12-12 Kobe Steel Ltd 作業機械の油圧制御装置
JP6893894B2 (ja) * 2018-03-27 2021-06-23 ヤンマーパワーテクノロジー株式会社 作業車両の油圧回路
JP2021177017A (ja) 2020-04-30 2021-11-11 株式会社リヒトラブ 顔保護具

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016056442A1 (ja) 2014-10-06 2016-04-14 住友重機械工業株式会社 ショベル

Also Published As

Publication number Publication date
EP4424929A1 (en) 2024-09-04
CN117897538A (zh) 2024-04-16
WO2023074810A1 (ja) 2023-05-04
JPWO2023074810A1 (https=) 2023-05-04
US20240271390A1 (en) 2024-08-15
EP4424929A4 (en) 2025-05-07
US12467232B2 (en) 2025-11-11

Similar Documents

Publication Publication Date Title
JP3992612B2 (ja) バックホウの油圧回路構造
JP6005185B2 (ja) 建設機械の油圧駆動装置
JP6450487B1 (ja) 油圧ショベル駆動システム
JP6812338B2 (ja) 作業機の油圧システム
US12523292B2 (en) Working machine
WO2019054366A1 (ja) 建設機械の油圧駆動システム
CN106460877A (zh) 挖土机及其控制方法
JP6776334B2 (ja) ショベル及びショベル用コントロールバルブ
KR20220044439A (ko) 쇼벨
US12312773B2 (en) Excavator
JP2002206256A (ja) バックホウの油圧装置
KR20240087638A (ko) 쇼벨
KR20240087640A (ko) 쇼벨
JP3666830B2 (ja) 油圧機械の油圧再生回路
CN108884843A (zh) 挖土机及挖土机用控制阀门
WO2021124767A1 (ja) 建設機械の油圧回路
JP6821552B2 (ja) 作業機の油圧システム
JP6896528B2 (ja) ショベル
JP3992611B2 (ja) バックホウの油圧回路構造
JP6882153B2 (ja) 作業機の油圧システム
JP4820129B2 (ja) 油圧装置
JP4820128B2 (ja) 油圧回路
JP2019052766A (ja) ショベル及び建設機械用方向制御弁グループ

Legal Events

Date Code Title Description
PA0105 International application

Patent event date: 20240222

Patent event code: PA01051R01D

Comment text: International Patent Application

PG1501 Laying open of application