JPS59217839A - クレ−ン兼用の油圧シヨベルの油圧回路 - Google Patents

クレ−ン兼用の油圧シヨベルの油圧回路

Info

Publication number
JPS59217839A
JPS59217839A JP8918483A JP8918483A JPS59217839A JP S59217839 A JPS59217839 A JP S59217839A JP 8918483 A JP8918483 A JP 8918483A JP 8918483 A JP8918483 A JP 8918483A JP S59217839 A JPS59217839 A JP S59217839A
Authority
JP
Japan
Prior art keywords
pressure
valve
boom
oil
hydraulic
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.)
Granted
Application number
JP8918483A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0329930B2 (enrdf_load_html_response
Inventor
Tadashi Nakamura
正 中村
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 JP8918483A priority Critical patent/JPS59217839A/ja
Publication of JPS59217839A publication Critical patent/JPS59217839A/ja
Publication of JPH0329930B2 publication Critical patent/JPH0329930B2/ja
Granted legal-status Critical Current

Links

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
    • 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)
  • Fluid-Pressure Circuits (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Jib Cranes (AREA)
  • Operation Control Of Excavators (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Control And Safety Of Cranes (AREA)
JP8918483A 1983-05-23 1983-05-23 クレ−ン兼用の油圧シヨベルの油圧回路 Granted JPS59217839A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8918483A JPS59217839A (ja) 1983-05-23 1983-05-23 クレ−ン兼用の油圧シヨベルの油圧回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8918483A JPS59217839A (ja) 1983-05-23 1983-05-23 クレ−ン兼用の油圧シヨベルの油圧回路

Publications (2)

Publication Number Publication Date
JPS59217839A true JPS59217839A (ja) 1984-12-08
JPH0329930B2 JPH0329930B2 (enrdf_load_html_response) 1991-04-25

Family

ID=13963654

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8918483A Granted JPS59217839A (ja) 1983-05-23 1983-05-23 クレ−ン兼用の油圧シヨベルの油圧回路

Country Status (1)

Country Link
JP (1) JPS59217839A (enrdf_load_html_response)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007084331A (ja) * 2005-09-26 2007-04-05 Kato Works Co Ltd ブーム起伏用油圧回路
CN108773784A (zh) * 2018-07-17 2018-11-09 北京市第三建筑工程有限公司 提升器
JP2019148301A (ja) * 2018-02-27 2019-09-05 Ｋｙｂ−Ｙｓ株式会社 流体圧制御装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007084331A (ja) * 2005-09-26 2007-04-05 Kato Works Co Ltd ブーム起伏用油圧回路
JP2019148301A (ja) * 2018-02-27 2019-09-05 Ｋｙｂ−Ｙｓ株式会社 流体圧制御装置
CN108773784A (zh) * 2018-07-17 2018-11-09 北京市第三建筑工程有限公司 提升器

Also Published As

Publication number Publication date
JPH0329930B2 (enrdf_load_html_response) 1991-04-25

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