JP6484021B2 - 作業機械 - Google Patents

作業機械 Download PDF

Info

Publication number
JP6484021B2
JP6484021B2 JP2014252171A JP2014252171A JP6484021B2 JP 6484021 B2 JP6484021 B2 JP 6484021B2 JP 2014252171 A JP2014252171 A JP 2014252171A JP 2014252171 A JP2014252171 A JP 2014252171A JP 6484021 B2 JP6484021 B2 JP 6484021B2
Authority
JP
Japan
Prior art keywords
valve
pressure
pilot
electromagnetic
proportional valve
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
JP2014252171A
Other languages
English (en)
Japanese (ja)
Other versions
JP2016114129A (ja
JP2016114129A5 (enrdf_load_stackoverflow
Inventor
秀一 森木
秀一 森木
司 京増
司 京増
坂本　博史
博史 坂本
慶幸 土江
慶幸 土江
釣賀　靖貴
靖貴 釣賀
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 JP2014252171A priority Critical patent/JP6484021B2/ja
Publication of JP2016114129A publication Critical patent/JP2016114129A/ja
Publication of JP2016114129A5 publication Critical patent/JP2016114129A5/ja
Application granted granted Critical
Publication of JP6484021B2 publication Critical patent/JP6484021B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Operation Control Of Excavators (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Fluid-Pressure Circuits (AREA)
JP2014252171A 2014-12-12 2014-12-12 作業機械 Active JP6484021B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2014252171A JP6484021B2 (ja) 2014-12-12 2014-12-12 作業機械

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014252171A JP6484021B2 (ja) 2014-12-12 2014-12-12 作業機械

Publications (3)

Publication Number Publication Date
JP2016114129A JP2016114129A (ja) 2016-06-23
JP2016114129A5 JP2016114129A5 (enrdf_load_stackoverflow) 2017-11-16
JP6484021B2 true JP6484021B2 (ja) 2019-03-13

Family

ID=56141348

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2014252171A Active JP6484021B2 (ja) 2014-12-12 2014-12-12 作業機械

Country Status (1)

Country Link
JP (1) JP6484021B2 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021195813A (ja) * 2020-06-16 2021-12-27 住友建機株式会社 ショベル

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10233951B2 (en) * 2016-10-05 2019-03-19 Caterpillar Inc. Method to detect uncommanded spool valve positioning and stop fluid flow to hydraulic actuators
JP2018168977A (ja) * 2017-03-30 2018-11-01 川崎重工業株式会社 油圧システム
JP6731373B2 (ja) 2017-03-30 2020-07-29 日立建機株式会社 建設機械
JP6726127B2 (ja) * 2017-03-30 2020-07-22 川崎重工業株式会社 油圧システム
JP7042161B2 (ja) * 2018-05-30 2022-03-25 日立建機株式会社 作業機械
JP7123821B2 (ja) 2019-01-31 2022-08-23 日立建機株式会社 作業機械
JP7385477B2 (ja) * 2020-01-09 2023-11-22 日立建機株式会社 作業機械
CN111501871B (zh) * 2020-05-29 2025-05-23 三一重机有限公司 挖掘机液压系统及挖掘机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60179502A (ja) * 1984-02-25 1985-09-13 Hitachi Constr Mach Co Ltd 油圧アクチユエ−タの操作回路
JPS60189602U (ja) * 1984-05-25 1985-12-16 カヤバ工業株式会社 油圧制御回路
JPS63186005A (ja) * 1987-01-27 1988-08-01 Hitachi Constr Mach Co Ltd 油圧回路
JPH0719207A (ja) * 1993-07-02 1995-01-20 Hitachi Constr Mach Co Ltd 油圧機械の駆動制御装置
JP3375092B2 (ja) * 1993-12-17 2003-02-10 日立建機株式会社 建設機械の無線操縦装置
JP5631762B2 (ja) * 2011-01-25 2014-11-26 日立建機株式会社 作業機のフロント仕様判別装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021195813A (ja) * 2020-06-16 2021-12-27 住友建機株式会社 ショベル
JP7500297B2 (ja) 2020-06-16 2024-06-17 住友建機株式会社 ショベル

Also Published As

Publication number Publication date
JP2016114129A (ja) 2016-06-23

Similar Documents

Publication Publication Date Title
JP6484021B2 (ja) 作業機械
KR101887318B1 (ko) 작업 기계의 유압 구동 시스템
US9926950B2 (en) Hydraulic system for construction machinery
KR101973872B1 (ko) 작업 기계의 유압 구동 시스템
US10626575B2 (en) Control system for construction machine
KR102062193B1 (ko) 작업 기계의 압유 에너지 회생 장치
EP2910795B1 (en) Work machine
US10041228B2 (en) Construction machine
CN107208673A (zh) 作业机械的液压驱动系统
JP2016223563A (ja) 建設機械の油圧制御装置
US9903393B2 (en) Construction machine
WO2019220954A1 (ja) 油圧ショベル駆動システム
US10633828B2 (en) Hydraulic control device and hydraulic control method for construction machine
US10167611B2 (en) Hydraulic excavator drive system
KR101747519B1 (ko) 하이브리드식 건설 기계
JP6013503B2 (ja) 建設機械
CN107407299A (zh) 建筑机械的油压驱动系统
US10330128B2 (en) Hydraulic control system for work machine
JP6591370B2 (ja) 建設機械の油圧制御装置
JP7171475B2 (ja) 作業機械
JP6381228B2 (ja) 油圧駆動装置
JP6763326B2 (ja) 油圧回路

Legal Events

Date Code Title Description
A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20171005

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20171005

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20180816

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20180828

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20181029

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: 20190205

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20190215

R150 Certificate of patent or registration of utility model

Ref document number: 6484021

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150