JPH0262953U - - Google Patents

Info

Publication number
JPH0262953U
JPH0262953U JP14234288U JP14234288U JPH0262953U JP H0262953 U JPH0262953 U JP H0262953U JP 14234288 U JP14234288 U JP 14234288U JP 14234288 U JP14234288 U JP 14234288U JP H0262953 U JPH0262953 U JP H0262953U
Authority
JP
Japan
Prior art keywords
circuit
valve
regeneration
oil pressure
pilot
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
JP14234288U
Other languages
Japanese (ja)
Other versions
JPH0738404Y2 (en
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 filed Critical
Priority to JP1988142342U priority Critical patent/JPH0738404Y2/en
Publication of JPH0262953U publication Critical patent/JPH0262953U/ja
Application granted granted Critical
Publication of JPH0738404Y2 publication Critical patent/JPH0738404Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図、第２図は本考案の実施例に係る作業機
アタツチメントの作動油流量再生回路図、第３図
は従来の技術による２ポンプ合流回路を用いた場
合の回路説明図である。 １……主弁、２……アクチユエータ、３，４…
…主回路、５……再生弁、７……パイロツト弁、
８，８ａ，８ｂ，９，９ａ，９ｂ……パイロツト
回路、１０，１３……切換弁、１１……作動検出
弁。 1 and 2 are hydraulic oil flow rate regeneration circuit diagrams for a working machine attachment according to an embodiment of the present invention, and FIG. 3 is a circuit explanatory diagram when a two-pump merging circuit according to the prior art is used. 1... Main valve, 2... Actuator, 3, 4...
...Main circuit, 5...Regeneration valve, 7...Pilot valve,
8, 8a, 8b, 9, 9a, 9b... Pilot circuit, 10, 13... Switching valve, 11... Operation detection valve.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 主回路とパイロツト回路とを有する作業機アタ
ツチメントの油圧回路において、パイロツト弁７
によつて作動する主弁１とアクチユエータ２間の
主回路に再生弁５を、パイロツト弁７から再生弁
５の両端に通ずるパイロツト回路の分岐回路に作
動検出弁１１を設け、主回路油圧がパイロツト油
圧より低い場合は、アクチユエータ２から排出さ
れた油をパイロツト油圧によつて切換えられた再
生弁５からアクチユエータ２に流入する回路に戻
し、主回路油圧がパイロツト油圧により高くなる
と、作動検出弁１１を通つた主回路の圧油が再生
弁５を中立位置に押し戻し、再生機能を停止する
ようにしたことを特徴とする作業機アタツチメン
トの作動油流量再生回路。 In the hydraulic circuit of a work machine attachment having a main circuit and a pilot circuit, the pilot valve 7
A regeneration valve 5 is provided in the main circuit between the main valve 1 and the actuator 2, which are operated by If the main circuit oil pressure is lower than the oil pressure, the oil discharged from the actuator 2 is returned to the circuit that flows into the actuator 2 from the regeneration valve 5 switched by the pilot oil pressure, and when the main circuit oil pressure becomes higher due to the pilot oil pressure, the operation detection valve 11 is turned on. A hydraulic oil flow rate regeneration circuit for a work machine attachment, characterized in that the pressure oil in the main circuit that has passed through it pushes the regeneration valve 5 back to a neutral position and stops the regeneration function.
JP1988142342U 1988-10-31 1988-10-31 Working machine attachment hydraulic oil flow rate regeneration circuit Expired - Lifetime JPH0738404Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988142342U JPH0738404Y2 (en) 1988-10-31 1988-10-31 Working machine attachment hydraulic oil flow rate regeneration circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988142342U JPH0738404Y2 (en) 1988-10-31 1988-10-31 Working machine attachment hydraulic oil flow rate regeneration circuit

Publications (2)

Publication Number Publication Date
JPH0262953U true JPH0262953U (en) 1990-05-10
JPH0738404Y2 JPH0738404Y2 (en) 1995-09-06

Family

ID=31408204

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988142342U Expired - Lifetime JPH0738404Y2 (en) 1988-10-31 1988-10-31 Working machine attachment hydraulic oil flow rate regeneration circuit

Country Status (1)

Country Link
JP (1) JPH0738404Y2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003521652A (en) * 2000-02-04 2003-07-15 オー ウント カー オーレンスタイン ウント コツペル アクチエンゲゼルシヤフト In particular, a method and apparatus for controlling a lifting cylinder of a work machine.
JP2010210072A (en) * 2009-03-12 2010-09-24 Sumitomo (Shi) Construction Machinery Co Ltd Hydraulic control system for working machine
JP2014163426A (en) * 2013-02-22 2014-09-08 Hitachi Constr Mach Co Ltd Hydraulic pressure driving device for hydraulic shovel
JP2023111311A (en) * 2022-01-31 2023-08-10 三陽機器株式会社 Switching valve used in the hydraulic circuit of lifting equipment

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0285503A (en) * 1988-09-20 1990-03-27 Yutani Heavy Ind Ltd Hydraulic circuit for hydraulic shovel

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0285503A (en) * 1988-09-20 1990-03-27 Yutani Heavy Ind Ltd Hydraulic circuit for hydraulic shovel

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003521652A (en) * 2000-02-04 2003-07-15 オー ウント カー オーレンスタイン ウント コツペル アクチエンゲゼルシヤフト In particular, a method and apparatus for controlling a lifting cylinder of a work machine.
JP2010210072A (en) * 2009-03-12 2010-09-24 Sumitomo (Shi) Construction Machinery Co Ltd Hydraulic control system for working machine
JP2014163426A (en) * 2013-02-22 2014-09-08 Hitachi Constr Mach Co Ltd Hydraulic pressure driving device for hydraulic shovel
JP2023111311A (en) * 2022-01-31 2023-08-10 三陽機器株式会社 Switching valve used in the hydraulic circuit of lifting equipment

Also Published As

Publication number Publication date
JPH0738404Y2 (en) 1995-09-06

Similar Documents

Publication Publication Date Title
JPH01133503U (en)
JPH0441559U (en)
JPS639359U (en)
JPH02136153U (en)
JPS6331164U (en)
JPS641878U (en)
JPH0312005U (en)
JPS6368528U (en)
JPH01128466U (en)
JPH0175604U (en)
JPS5863268U (en) Hydraulic circuit of a swing cylinder in a construction machine equipped with a swing type work machine
JPS612568U (en) Hydraulic pump merging device for earthmoving vehicles
JPH0192501U (en)
JPH01120562U (en)
JPS61162587U (en)
JPS61112062U (en)
JPH0312659U (en)
JPH03127691U (en)
JPS59116465U (en) Blade work/scraper work switching device for construction vehicles
JPH01124859U (en)
JPH0399068U (en)
JPS631901U (en)
JPH0226665U (en)
JPS6268995U (en)
JPS61102656U (en)