JP7710096B2 - 建設機械 - Google Patents

建設機械

Info

Publication number
JP7710096B2
JP7710096B2 JP2024511917A JP2024511917A JP7710096B2 JP 7710096 B2 JP7710096 B2 JP 7710096B2 JP 2024511917 A JP2024511917 A JP 2024511917A JP 2024511917 A JP2024511917 A JP 2024511917A JP 7710096 B2 JP7710096 B2 JP 7710096B2
Authority
JP
Japan
Prior art keywords
hydraulic
control valve
closed circuit
open circuit
manifold
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.)
Active
Application number
JP2024511917A
Other languages
English (en)
Japanese (ja)
Other versions
JPWO2023189867A1 (https=
JPWO2023189867A5 (https=
Inventor
一 岡野
雄二 村山
祥隆 簗瀬
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.)
Hitachi Construction Machinery Co Ltd
Original Assignee
Hitachi 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 Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Publication of JPWO2023189867A1 publication Critical patent/JPWO2023189867A1/ja
Publication of JPWO2023189867A5 publication Critical patent/JPWO2023189867A5/ja
Application granted granted Critical
Publication of JP7710096B2 publication Critical patent/JP7710096B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • E02F3/30—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/32—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom working downwardly and towards the machine, e.g. with backhoes
    • 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
    • E02F3/425—Drive systems for dipper-arms, backhoes or the like
    • 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
    • E02F9/02—Travelling-gear, e.g. associated with slewing gears
    • 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
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
    • E02F9/0875—Arrangement of valve arrangements on superstructures
    • 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
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
    • E02F9/0883—Tanks, e.g. oil tank, urea tank, fuel tank
    • 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
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/10—Supports for movable superstructures mounted on travelling or walking gears or on other superstructures
    • E02F9/12—Slewing or traversing gears
    • E02F9/121—Turntables, i.e. structure rotatable about 360°
    • E02F9/123—Drives or control devices specially adapted 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
    • E02F9/2221—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
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2275—Hoses and supports therefor and protection 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
    • E02F9/2289—Closed circuit
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Operation Control Of Excavators (AREA)
JP2024511917A 2022-03-30 2023-03-21 建設機械 Active JP7710096B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2022055014 2022-03-30
JP2022055014 2022-03-30
PCT/JP2023/011037 WO2023189867A1 (ja) 2022-03-30 2023-03-21 建設機械

Publications (3)

Publication Number Publication Date
JPWO2023189867A1 JPWO2023189867A1 (https=) 2023-10-05
JPWO2023189867A5 JPWO2023189867A5 (https=) 2024-08-16
JP7710096B2 true JP7710096B2 (ja) 2025-07-17

Family

ID=88201268

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2024511917A Active JP7710096B2 (ja) 2022-03-30 2023-03-21 建設機械

Country Status (5)

Country Link
US (1) US20250019922A1 (https=)
EP (1) EP4424923A4 (https=)
JP (1) JP7710096B2 (https=)
CN (1) CN118251530A (https=)
WO (1) WO2023189867A1 (https=)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020129856A1 (en) 2001-03-15 2002-09-19 Werner Reinelt Electrohydraulic control device
JP2003097743A (ja) 2001-09-27 2003-04-03 Nabco Ltd 建設機械の多連方向切換弁
JP2008082161A (ja) 2007-10-05 2008-04-10 Nabtesco Corp 油圧ショベルのパイロット圧パターン切換弁
JP2011112123A (ja) 2009-11-25 2011-06-09 Kawasaki Precision Machinery Ltd マルチコントロール弁装置、及びそのケーシング
JP2011112077A (ja) 2009-11-24 2011-06-09 Keihin Corp 電磁弁装置
JP2013249896A (ja) 2012-05-31 2013-12-12 Hitachi Constr Mach Co Ltd 多連弁装置
JP2015227544A (ja) 2014-05-30 2015-12-17 日立建機株式会社 作業機械
JP2018151036A (ja) 2017-03-14 2018-09-27 日立建機株式会社 建設機械
JP2020034022A (ja) 2018-08-27 2020-03-05 ナブテスコ株式会社 油圧制御弁ブロック、油圧制御弁装置および建設機械

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0663521B2 (ja) * 1988-02-29 1994-08-22 株式会社小松製作所 操作弁装置
JP2003176547A (ja) * 2001-12-10 2003-06-24 Hitachi Constr Mach Co Ltd 旋回式建設機械
JP6134614B2 (ja) * 2013-09-02 2017-05-24 日立建機株式会社 作業機械の駆動装置

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020129856A1 (en) 2001-03-15 2002-09-19 Werner Reinelt Electrohydraulic control device
JP2003097743A (ja) 2001-09-27 2003-04-03 Nabco Ltd 建設機械の多連方向切換弁
JP2008082161A (ja) 2007-10-05 2008-04-10 Nabtesco Corp 油圧ショベルのパイロット圧パターン切換弁
JP2011112077A (ja) 2009-11-24 2011-06-09 Keihin Corp 電磁弁装置
JP2011112123A (ja) 2009-11-25 2011-06-09 Kawasaki Precision Machinery Ltd マルチコントロール弁装置、及びそのケーシング
JP2013249896A (ja) 2012-05-31 2013-12-12 Hitachi Constr Mach Co Ltd 多連弁装置
JP2015227544A (ja) 2014-05-30 2015-12-17 日立建機株式会社 作業機械
JP2018151036A (ja) 2017-03-14 2018-09-27 日立建機株式会社 建設機械
JP2020034022A (ja) 2018-08-27 2020-03-05 ナブテスコ株式会社 油圧制御弁ブロック、油圧制御弁装置および建設機械

Also Published As

Publication number Publication date
CN118251530A (zh) 2024-06-25
WO2023189867A1 (ja) 2023-10-05
JPWO2023189867A1 (https=) 2023-10-05
EP4424923A1 (en) 2024-09-04
US20250019922A1 (en) 2025-01-16
EP4424923A4 (en) 2025-10-08

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