JP6514522B2 - アンロード弁および油圧ショベルの油圧駆動システム - Google Patents

アンロード弁および油圧ショベルの油圧駆動システム Download PDF

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Publication number
JP6514522B2
JP6514522B2 JP2015033784A JP2015033784A JP6514522B2 JP 6514522 B2 JP6514522 B2 JP 6514522B2 JP 2015033784 A JP2015033784 A JP 2015033784A JP 2015033784 A JP2015033784 A JP 2015033784A JP 6514522 B2 JP6514522 B2 JP 6514522B2
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Japan
Prior art keywords
pump
circulation line
unloading
valve
port
Prior art date
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Active
Application number
JP2015033784A
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English (en)
Japanese (ja)
Other versions
JP2016156426A (ja
Inventor
哲弘 近藤
哲弘 近藤
誠司 青木
誠司 青木
藤山　和人
和人 藤山
伊藤　誠
伊藤　　誠
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.)
Kawasaki Motors Ltd
Original Assignee
Kawasaki Jukogyo KK
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 Kawasaki Jukogyo KK filed Critical Kawasaki Jukogyo KK
Priority to JP2015033784A priority Critical patent/JP6514522B2/ja
Priority to CN201610090570.3A priority patent/CN105909588B/zh
Publication of JP2016156426A publication Critical patent/JP2016156426A/ja
Application granted granted Critical
Publication of JP6514522B2 publication Critical patent/JP6514522B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/023—Excess flow valves, e.g. for locking cylinders in case of hose burst
    • 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
    • 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
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/20576—Systems with pumps with multiple pumps
    • 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
    • F15B2211/3056—Assemblies of multiple valves

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)
JP2015033784A 2015-02-24 2015-02-24 アンロード弁および油圧ショベルの油圧駆動システム Active JP6514522B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2015033784A JP6514522B2 (ja) 2015-02-24 2015-02-24 アンロード弁および油圧ショベルの油圧駆動システム
CN201610090570.3A CN105909588B (zh) 2015-02-24 2016-02-18 卸荷阀以及油压挖掘机的油压驱动系统

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2015033784A JP6514522B2 (ja) 2015-02-24 2015-02-24 アンロード弁および油圧ショベルの油圧駆動システム

Publications (2)

Publication Number Publication Date
JP2016156426A JP2016156426A (ja) 2016-09-01
JP6514522B2 true JP6514522B2 (ja) 2019-05-15

Family

ID=56744435

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2015033784A Active JP6514522B2 (ja) 2015-02-24 2015-02-24 アンロード弁および油圧ショベルの油圧駆動システム

Country Status (2)

Country Link
JP (1) JP6514522B2 (zh)
CN (1) CN105909588B (zh)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107421178A (zh) * 2017-08-14 2017-12-01 珠海格力电器股份有限公司 节流阀及热泵系统
CN110296115B (zh) * 2019-07-31 2024-04-19 中国铁建重工集团股份有限公司 凿岩台车及其钻臂控制液压系统
CN110454457B (zh) * 2019-08-22 2020-07-07 徐州阿马凯液压技术有限公司 一种流量卸荷阀及液压挖掘机的液压驱动系统
JP2021167614A (ja) * 2020-04-09 2021-10-21 川崎重工業株式会社 建設機械の油圧システム
JP7550671B2 (ja) * 2021-02-12 2024-09-13 川崎重工業株式会社 液圧駆動システム
CN113669496B (zh) * 2021-08-09 2024-04-19 华能太原东山燃机热电有限责任公司 一种用于控制燃机电厂esd阀的高可靠性集成式电磁阀
CN114087249B (zh) * 2021-11-18 2023-05-26 国能神东煤炭集团有限责任公司 一种电液压力控制系统及控制方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1162348A (zh) * 1994-08-05 1997-10-15 株式会社小松制作所 方向控制阀装置
KR101597174B1 (ko) * 2008-03-31 2016-02-24 나부테스코 가부시키가이샤 건설기계의 유압회로
CN103415709B (zh) * 2011-03-07 2016-01-20 沃尔沃建造设备有限公司 用于管道铺设机的液压回路
JP5791360B2 (ja) * 2011-05-09 2015-10-07 ナブテスコ株式会社 建設機械の油圧回路
JP5778086B2 (ja) * 2012-06-15 2015-09-16 住友建機株式会社 建設機械の油圧回路及びその制御装置
JP6018442B2 (ja) * 2012-07-10 2016-11-02 川崎重工業株式会社 傾転角制御装置
JP5978056B2 (ja) * 2012-08-07 2016-08-24 住友建機株式会社 建設機械の油圧回路及びその制御装置
JP5964188B2 (ja) * 2012-09-18 2016-08-03 ナブテスコ株式会社 建設機械の油圧回路
CN103062148B (zh) * 2013-01-30 2015-09-16 浙江海克力液压有限公司 一种节能型优先卸荷阀
CN103206423B (zh) * 2013-04-17 2015-09-02 三一重机有限公司 一种液压系统及工程机械

Also Published As

Publication number Publication date
CN105909588A (zh) 2016-08-31
JP2016156426A (ja) 2016-09-01
CN105909588B (zh) 2017-08-11

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