JP6581444B2 - 作業機械 - Google Patents

作業機械 Download PDF

Info

Publication number
JP6581444B2
JP6581444B2 JP2015176331A JP2015176331A JP6581444B2 JP 6581444 B2 JP6581444 B2 JP 6581444B2 JP 2015176331 A JP2015176331 A JP 2015176331A JP 2015176331 A JP2015176331 A JP 2015176331A JP 6581444 B2 JP6581444 B2 JP 6581444B2
Authority
JP
Japan
Prior art keywords
flow path
hydraulic
control device
pump
switching
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
JP2015176331A
Other languages
English (en)
Japanese (ja)
Other versions
JP2017053386A (ja
JP2017053386A5 (enrdf_load_stackoverflow
Inventor
哲平 齋藤
哲平 齋藤
自由理 清水
自由理 清水
平工　賢二
賢二 平工
悠基 秋山
悠基 秋山
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 JP2015176331A priority Critical patent/JP6581444B2/ja
Publication of JP2017053386A publication Critical patent/JP2017053386A/ja
Publication of JP2017053386A5 publication Critical patent/JP2017053386A5/ja
Application granted granted Critical
Publication of JP6581444B2 publication Critical patent/JP6581444B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)
JP2015176331A 2015-09-08 2015-09-08 作業機械 Active JP6581444B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2015176331A JP6581444B2 (ja) 2015-09-08 2015-09-08 作業機械

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2015176331A JP6581444B2 (ja) 2015-09-08 2015-09-08 作業機械

Publications (3)

Publication Number Publication Date
JP2017053386A JP2017053386A (ja) 2017-03-16
JP2017053386A5 JP2017053386A5 (enrdf_load_stackoverflow) 2018-05-10
JP6581444B2 true JP6581444B2 (ja) 2019-09-25

Family

ID=58320567

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2015176331A Active JP6581444B2 (ja) 2015-09-08 2015-09-08 作業機械

Country Status (1)

Country Link
JP (1) JP6581444B2 (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6731373B2 (ja) * 2017-03-30 2020-07-29 日立建機株式会社 建設機械
JP7096178B2 (ja) * 2019-02-08 2022-07-05 日立建機株式会社 建設機械

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5524456Y2 (enrdf_load_stackoverflow) * 1975-12-16 1980-06-11
JP5778058B2 (ja) * 2012-03-09 2015-09-16 住友建機株式会社 建設機械の制御装置及びその制御方法
JP5961580B2 (ja) * 2013-04-11 2016-08-02 日立建機株式会社 作業機械の駆動装置
JP6163112B2 (ja) * 2014-01-22 2017-07-12 アズビル株式会社 ポジショナ

Also Published As

Publication number Publication date
JP2017053386A (ja) 2017-03-16

Similar Documents

Publication Publication Date Title
EP2042661B1 (en) Backhoe hydraulic system
US9890801B2 (en) Hydraulic drive system for construction machine
US10829908B2 (en) Construction machine
US10253479B2 (en) Hydraulic system for work machine
KR101190553B1 (ko) 건설기계의 유압구동장치
WO2019220872A1 (ja) 作業機械の油圧駆動装置
WO2014091684A1 (ja) 建設機械
US11078646B2 (en) Shovel and control valve for shovel
JP6636795B2 (ja) 作業機械
JP6581444B2 (ja) 作業機械
KR20110072587A (ko) 건설장비용 유압시스템
US10273983B2 (en) Working machine control system and lower pressure selection circuit
KR102543030B1 (ko) 작업 기계
US10072396B2 (en) Working machine control system
JP2019060450A (ja) 建設機械
AU2019246449A1 (en) Hydraulic circuit for work vehicle
US10208457B2 (en) Working machine control system
JP5481853B2 (ja) 建設機械の油圧回路
JP7083326B2 (ja) 建設機械
JP2015059591A (ja) 液圧駆動装置
WO2019069612A1 (ja) 作業車両
JPH10299027A (ja) 建設機械の油圧駆動装置
KR20100073496A (ko) 건설기계의 유압펌프 유량제어장치
JP5934669B2 (ja) 建設機械の油圧駆動装置
KR20130087167A (ko) 건설기계 상체의 독립적인 선회를 위한 유압장치

Legal Events

Date Code Title Description
A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20180319

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20180319

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20190123

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20190205

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20190405

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: 20190827

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20190830

R150 Certificate of patent or registration of utility model

Ref document number: 6581444

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150