JP6663383B2 - 作業機械用油圧制御装置 - Google Patents

作業機械用油圧制御装置 Download PDF

Info

Publication number
JP6663383B2
JP6663383B2 JP2017068216A JP2017068216A JP6663383B2 JP 6663383 B2 JP6663383 B2 JP 6663383B2 JP 2017068216 A JP2017068216 A JP 2017068216A JP 2017068216 A JP2017068216 A JP 2017068216A JP 6663383 B2 JP6663383 B2 JP 6663383B2
Authority
JP
Japan
Prior art keywords
pilot
hydraulic
oil
valve
tank
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
JP2017068216A
Other languages
English (en)
Japanese (ja)
Other versions
JP2018169004A5 (enExample
JP2018169004A (ja
Inventor
雄哉 池戸
雄哉 池戸
寛 兼澤
寛 兼澤
伊東　英明
英明 伊東
淳 西畑
淳 西畑
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
Priority to JP2017068216A priority Critical patent/JP6663383B2/ja
Priority to PCT/JP2017/041316 priority patent/WO2018179574A1/ja
Publication of JP2018169004A publication Critical patent/JP2018169004A/ja
Publication of JP2018169004A5 publication Critical patent/JP2018169004A5/ja
Application granted granted Critical
Publication of JP6663383B2 publication Critical patent/JP6663383B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • 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
    • 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
    • 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
    • F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
    • 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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04—Special measures taken in connection with the properties of the fluid

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)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Operation Control Of Excavators (AREA)
JP2017068216A 2017-03-30 2017-03-30 作業機械用油圧制御装置 Active JP6663383B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2017068216A JP6663383B2 (ja) 2017-03-30 2017-03-30 作業機械用油圧制御装置
PCT/JP2017/041316 WO2018179574A1 (ja) 2017-03-30 2017-11-16 作業機械用油圧制御装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2017068216A JP6663383B2 (ja) 2017-03-30 2017-03-30 作業機械用油圧制御装置

Publications (3)

Publication Number Publication Date
JP2018169004A JP2018169004A (ja) 2018-11-01
JP2018169004A5 JP2018169004A5 (enExample) 2019-01-31
JP6663383B2 true JP6663383B2 (ja) 2020-03-11

Family

ID=63674761

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2017068216A Active JP6663383B2 (ja) 2017-03-30 2017-03-30 作業機械用油圧制御装置

Country Status (2)

Country Link
JP (1) JP6663383B2 (enExample)
WO (1) WO2018179574A1 (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7026657B2 (ja) * 2019-03-26 2022-02-28 日立建機株式会社 建設機械の油圧回路
CN110513361A (zh) * 2019-09-02 2019-11-29 柳州柳工挖掘机有限公司 工程机械液压系统及液压油升温控制方法
JP2021156340A (ja) * 2020-03-26 2021-10-07 日立建機株式会社 作業車両
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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62246606A (ja) * 1986-04-17 1987-10-27 Yutani Heavy Ind Ltd 作業機の油圧パイロツトパルプ装置
JP2000220768A (ja) * 1999-02-01 2000-08-08 Zexel Corp 電磁弁ユニットの昇温回路

Also Published As

Publication number Publication date
JP2018169004A (ja) 2018-11-01
WO2018179574A1 (ja) 2018-10-04

Similar Documents

Publication Publication Date Title
CN101868580B (zh) 载荷感测系统、包括该系统的工程机械及用于控制液压功能件的方法
JP6785203B2 (ja) 建設機械
JP5809544B2 (ja) 暖機システム
US9932993B2 (en) System and method for hydraulic energy recovery
JP6663383B2 (ja) 作業機械用油圧制御装置
EP2123541A1 (en) Steering system for working vehicle
JPH07127607A (ja) 作業機械の油圧装置
JPH0450504A (ja) ロードセンシング油圧駆動回路の制御装置
JP7026657B2 (ja) 建設機械の油圧回路
JP5809545B2 (ja) 暖機システム
JP5373310B2 (ja) 作業機械
JP2021139449A (ja) 作業機械の油圧駆動装置
JP6285854B2 (ja) 作業車両
EP3587674B1 (en) System for controlling construction machine and method for controlling construction machine
JP2017187116A (ja) 作業機の油圧システム
JP2011106513A (ja) 荷役用油圧制御装置
JP7141592B2 (ja) 油圧システム用の低ノイズ制御アルゴリズム
JP2002038536A (ja) 建設機械のカットオフ制御装置
JP7165074B2 (ja) 作業機械
JP4945299B2 (ja) 油圧アクチュエータ駆動制御装置および建設機械
JP6924161B2 (ja) 建設機械の油圧システム
JP2010112075A (ja) 作業機械のアクチュエータ速度制御装置
JP6618445B2 (ja) 作業車両用油圧制御装置
CN110741168A (zh) 油压系统
JP2005344766A (ja) 作業車両の油圧回路

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20181210

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20181210

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20191217

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20200127

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20200212

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20200214

R150 Certificate of patent or registration of utility model

Ref document number: 6663383

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150