JPH0247252U - - Google Patents

Info

Publication number
JPH0247252U
JPH0247252U JP12470088U JP12470088U JPH0247252U JP H0247252 U JPH0247252 U JP H0247252U JP 12470088 U JP12470088 U JP 12470088U JP 12470088 U JP12470088 U JP 12470088U JP H0247252 U JPH0247252 U JP H0247252U
Authority
JP
Japan
Prior art keywords
arm
valve
meter
circuit
bottom side
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
JP12470088U
Other languages
Japanese (ja)
Other versions
JPH082189Y2 (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 JP1988124700U priority Critical patent/JPH082189Y2/en
Publication of JPH0247252U publication Critical patent/JPH0247252U/ja
Application granted granted Critical
Publication of JPH082189Y2 publication Critical patent/JPH082189Y2/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図は本考案一実施例の構成説明図、第２図
はポンプ流量線図、第３図はアームメータインバ
ルブの開度線図、第４図はアームメータアウトバ
ルブの開度線図、第５図は再生バルブの開度線図
、第６図はアームスピード線図、第７図はポンプ
流量線図、第８図は従来のアーム操作回路装置の
構成説明図、第９図はアーム単独操作時のアーム
スピード線図、第１０図はブームとアーム同時操
作時のアームスピード線図である。 １はポンプ、４はアームメータインバルブ、６
はアームシリンダ、９はアームメータアウトバル
ブ、７，１３はチエツク弁、１２は再生バルブ、
２５はコントローラ。 Fig. 1 is an explanatory diagram of the configuration of an embodiment of the present invention, Fig. 2 is a pump flow rate diagram, Fig. 3 is an opening diagram of the arm meter-in valve, and Fig. 4 is an opening diagram of the arm meter-out valve. , Fig. 5 is an opening diagram of the regeneration valve, Fig. 6 is an arm speed diagram, Fig. 7 is a pump flow diagram, Fig. 8 is an explanatory diagram of the configuration of a conventional arm operation circuit device, and Fig. 9 is a diagram. An arm speed diagram when the arm is operated alone; FIG. 10 is an arm speed diagram when the boom and arm are operated simultaneously. 1 is the pump, 4 is the arm meter-in valve, 6
is an arm cylinder, 9 is an arm meter out valve, 7 and 13 are check valves, 12 is a regeneration valve,
25 is a controller.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] アームシリンダのボトム側回路に設けられたア
ームメータインバルブと、アームシリンダのボト
ム側管路に設けられてアームメータインバルブを
出た油をアームシリンダ側へのみ流すチエツク弁
と、アームシリンダのロツド側回路に設けられた
アームメータアウトバルブと、アームシリンダの
ボトム側とロツド側とをつなぐ回路に設けられた
再生バルブと、この回路に設けられてロツド側の
油をボトム側にのみ流すチエツク弁と、アームレ
バーの電気信号発生部ブームレバーの電気信号発
生部、ポンプ吐出側の圧力センサからの入力信号
を受けて前記アームメータインバルブ、アームメ
ータアウトバルブ、再生バルブのそれぞれの開度
及びポンプ吐出量を制御するコントローラとを備
えたことを特徴とするアーム操作回路装置。 An arm meter-in valve installed in the bottom side circuit of the arm cylinder, a check valve installed in the bottom side conduit of the arm cylinder that allows the oil exiting the arm meter-in valve to flow only to the arm cylinder side, and the arm cylinder rod. An arm meter out valve provided in the side circuit, a regeneration valve provided in the circuit connecting the bottom side of the arm cylinder and the rod side, and a check valve provided in this circuit to flow oil from the rod side only to the bottom side. In response to input signals from the boom lever's electric signal generating section and the pressure sensor on the pump discharge side, the arm lever's electric signal generating section receives the input signals from the pump discharge side pressure sensor and determines the respective opening degrees of the arm meter-in valve, arm meter-out valve, and regeneration valve and the pump. An arm operation circuit device comprising: a controller for controlling a discharge amount.
JP1988124700U 1988-09-26 1988-09-26 Arm operation circuit device Expired - Lifetime JPH082189Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988124700U JPH082189Y2 (en) 1988-09-26 1988-09-26 Arm operation circuit device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988124700U JPH082189Y2 (en) 1988-09-26 1988-09-26 Arm operation circuit device

Publications (2)

Publication Number Publication Date
JPH0247252U true JPH0247252U (en) 1990-03-30
JPH082189Y2 JPH082189Y2 (en) 1996-01-24

Family

ID=31374663

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988124700U Expired - Lifetime JPH082189Y2 (en) 1988-09-26 1988-09-26 Arm operation circuit device

Country Status (1)

Country Link
JP (1) JPH082189Y2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994013959A1 (en) * 1992-12-04 1994-06-23 Hitachi Construction Machinery Co., Ltd. Hydraulic regenerator
JP2008045732A (en) * 2006-07-21 2008-02-28 Shin Caterpillar Mitsubishi Ltd Pump control method for working machine
JP2012047307A (en) * 2010-08-30 2012-03-08 Kyb Co Ltd Selector valve
JP2015086958A (en) * 2013-10-31 2015-05-07 川崎重工業株式会社 Hydraulic excavator drive system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58204234A (en) * 1982-05-21 1983-11-28 Hitachi Constr Mach Co Ltd Oil-pressure circuit for oil-pressure type excavator
JPS59194103A (en) * 1983-04-18 1984-11-02 Hitachi Constr Mach Co Ltd Driving device for hydraulic cylinder
JPS60179504A (en) * 1984-02-28 1985-09-13 Mitsubishi Heavy Ind Ltd Energy recycle circuit
JPS622805U (en) * 1985-06-20 1987-01-09
JPS63195402A (en) * 1987-02-06 1988-08-12 Komatsu Ltd hydraulic control device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58204234A (en) * 1982-05-21 1983-11-28 Hitachi Constr Mach Co Ltd Oil-pressure circuit for oil-pressure type excavator
JPS59194103A (en) * 1983-04-18 1984-11-02 Hitachi Constr Mach Co Ltd Driving device for hydraulic cylinder
JPS60179504A (en) * 1984-02-28 1985-09-13 Mitsubishi Heavy Ind Ltd Energy recycle circuit
JPS622805U (en) * 1985-06-20 1987-01-09
JPS63195402A (en) * 1987-02-06 1988-08-12 Komatsu Ltd hydraulic control device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994013959A1 (en) * 1992-12-04 1994-06-23 Hitachi Construction Machinery Co., Ltd. Hydraulic regenerator
JP3139769B2 (en) * 1992-12-04 2001-03-05 日立建機株式会社 Hydraulic regeneration device
JP2008045732A (en) * 2006-07-21 2008-02-28 Shin Caterpillar Mitsubishi Ltd Pump control method for working machine
US8191364B2 (en) 2006-07-21 2012-06-05 Caterpillar S.A.R.L. Method for controlling pump of working machine
JP2012047307A (en) * 2010-08-30 2012-03-08 Kyb Co Ltd Selector valve
JP2015086958A (en) * 2013-10-31 2015-05-07 川崎重工業株式会社 Hydraulic excavator drive system
WO2015064026A1 (en) * 2013-10-31 2015-05-07 川崎重工業株式会社 Hydraulic shovel drive system

Also Published As

Publication number Publication date
JPH082189Y2 (en) 1996-01-24

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