JPS59102666U - Hydraulic circuit for work equipment - Google Patents

Hydraulic circuit for work equipment

Info

Publication number
JPS59102666U
JPS59102666U JP19644282U JP19644282U JPS59102666U JP S59102666 U JPS59102666 U JP S59102666U JP 19644282 U JP19644282 U JP 19644282U JP 19644282 U JP19644282 U JP 19644282U JP S59102666 U JPS59102666 U JP S59102666U
Authority
JP
Japan
Prior art keywords
hydraulic
circuit
hydraulic circuit
work equipment
switching 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.)
Pending
Application number
JP19644282U
Other languages
Japanese (ja)
Inventor
伝田　林太
Original Assignee
株式会社竹内製作所
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 株式会社竹内製作所 filed Critical 株式会社竹内製作所
Priority to JP19644282U priority Critical patent/JPS59102666U/en
Publication of JPS59102666U publication Critical patent/JPS59102666U/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図はこの考案の実施例を示す油圧回路図、第２図は
公知の実施例を示す油圧回路図、１・・・絞り弁、２・
・・パイロット切換弁、３川チエツク弁、４・・・切換
弁、５・・・切換弁、６・・・切換弁、ａ・・・油圧ポ
ンプＰ２側供給回路、ｂ・・・パイロット回路、Ｐｌ・
・・第１油圧ポンプ、Ｐ２・・・第２油圧ポンプ。　　
　　”Fig. 1 is a hydraulic circuit diagram showing an embodiment of this invention, Fig. 2 is a hydraulic circuit diagram showing a known embodiment, 1... Throttle valve, 2...
...Pilot switching valve, 3 river check valve, 4...Switching valve, 5...Switching valve, 6...Switching valve, a...Hydraulic pump P2 side supply circuit, b...Pilot circuit, Pl・
...First hydraulic pump, P2...Second hydraulic pump.
”

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ２個の油圧ポンプｐ１．ｐ２にて各々油圧アクチェータ
ーを駆動する油圧回路に於て、油圧ポンプＰ１のタンク
回路に絞り弁１を設けてその間にパイロット切換弁２を
併設して、油圧ポンプＰ２の供給回路ａにチェック弁３
を介して接続するとともに油圧ポンプＰ２の切換弁４の
アンロード回路よりパイロット回路すをパイロット切換
弁１へ接続したことを特徴とする作業機用油圧回路。Two hydraulic pumps p1. In the hydraulic circuits that drive the respective hydraulic actuators at p2, a throttle valve 1 is provided in the tank circuit of the hydraulic pump P1, a pilot switching valve 2 is provided between them, and a check valve 3 is provided in the supply circuit a of the hydraulic pump P2.
A hydraulic circuit for a work machine, characterized in that a pilot circuit is connected to a pilot switching valve 1 from an unload circuit of a switching valve 4 of a hydraulic pump P2.
JP19644282U 1982-12-28 1982-12-28 Hydraulic circuit for work equipment Pending JPS59102666U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19644282U JPS59102666U (en) 1982-12-28 1982-12-28 Hydraulic circuit for work equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19644282U JPS59102666U (en) 1982-12-28 1982-12-28 Hydraulic circuit for work equipment

Publications (1)

Publication Number Publication Date
JPS59102666U true JPS59102666U (en) 1984-07-10

Family

ID=30421452

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19644282U Pending JPS59102666U (en) 1982-12-28 1982-12-28 Hydraulic circuit for work equipment

Country Status (1)

Country Link
JP (1) JPS59102666U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002276608A (en) * 2001-03-19 2002-09-25 Kayaba Ind Co Ltd Hydraulic control device
JP2002276607A (en) * 2001-03-19 2002-09-25 Kayaba Ind Co Ltd Hydraulic control device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002276608A (en) * 2001-03-19 2002-09-25 Kayaba Ind Co Ltd Hydraulic control device
JP2002276607A (en) * 2001-03-19 2002-09-25 Kayaba Ind Co Ltd Hydraulic control device
JP4548959B2 (en) * 2001-03-19 2010-09-22 カヤバ工業株式会社 Hydraulic control device

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