JPS581670U - excavator hydraulic circuit - Google Patents

excavator hydraulic circuit

Info

Publication number
JPS581670U
JPS581670U JP9500881U JP9500881U JPS581670U JP S581670 U JPS581670 U JP S581670U JP 9500881 U JP9500881 U JP 9500881U JP 9500881 U JP9500881 U JP 9500881U JP S581670 U JPS581670 U JP S581670U
Authority
JP
Japan
Prior art keywords
pump
hydraulic circuit
arm
pressure oil
control 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.)
Granted
Application number
JP9500881U
Other languages
Japanese (ja)
Other versions
JPS632522Y2 (en
Inventor
博 松浦
Original Assignee
石川島播磨重工業株式会社
石川島建機株式会社
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 石川島播磨重工業株式会社, 石川島建機株式会社 filed Critical 石川島播磨重工業株式会社
Priority to JP9500881U priority Critical patent/JPS581670U/en
Publication of JPS581670U publication Critical patent/JPS581670U/en
Application granted granted Critical
Publication of JPS632522Y2 publication Critical patent/JPS632522Y2/ja
Granted 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) [Abstract] 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]

図は本考案に係る掘削機の油圧回路図である。 ３．４はポンプ、６は圧油供給管、８は右走行操作弁、
９は第１アーム操作弁、１０は排土板操作弁、１１は第
２．アーム操作弁、２７はアームシリンダ、３０は供給
管を示す。The figure is a hydraulic circuit diagram of an excavator according to the present invention. 3.4 is the pump, 6 is the pressure oil supply pipe, 8 is the right travel operation valve,
9 is a first arm operation valve, 10 is an earth removal plate operation valve, and 11 is a second arm operation valve. An arm operation valve, 27 is an arm cylinder, and 30 is a supply pipe.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 第１のポンプに接続した第１の圧油供給管に該ポンプ側
より走行操作弁、第１アーム操作弁、排土板操作弁、第
２アーム操作弁をタンデムに設けると共に第２のポンプ
に接続己た第２の圧油供給管を前記排土板操作弁の中立
位置で第１の供給管に連通し、第１アーム操作弁より第
１ポンプからの圧油を、第２アーム操作弁より第１ポン
プ、第２ポンプのうち少なくとも第２ポンプからの圧油
をアームシリンダに供給し得る様構成したことを特徴と
する掘削機の油圧回路。A travel control valve, a first arm control valve, a soil removal plate control valve, and a second arm control valve are provided in tandem from the pump side to a first pressure oil supply pipe connected to the first pump, and The connected second pressure oil supply pipe is communicated with the first supply pipe at the neutral position of the earth removal plate operation valve, and the pressure oil from the first pump is transferred from the first arm operation valve to the second arm operation valve. 1. A hydraulic circuit for an excavator, characterized in that the hydraulic circuit is configured to supply pressure oil from at least the second pump of the first pump and the second pump to the arm cylinder.
JP9500881U 1981-06-26 1981-06-26 excavator hydraulic circuit Granted JPS581670U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9500881U JPS581670U (en) 1981-06-26 1981-06-26 excavator hydraulic circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9500881U JPS581670U (en) 1981-06-26 1981-06-26 excavator hydraulic circuit

Publications (2)

Publication Number Publication Date
JPS581670U true JPS581670U (en) 1983-01-07
JPS632522Y2 JPS632522Y2 (en) 1988-01-22

Family

ID=29889930

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9500881U Granted JPS581670U (en) 1981-06-26 1981-06-26 excavator hydraulic circuit

Country Status (1)

Country Link
JP (1) JPS581670U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5325774A (en) * 1976-08-24 1978-03-09 Caterpillar Tractor Co Multiple pump hydraulic control system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5325774A (en) * 1976-08-24 1978-03-09 Caterpillar Tractor Co Multiple pump hydraulic control system

Also Published As

Publication number Publication date
JPS632522Y2 (en) 1988-01-22

Similar Documents

Publication Publication Date Title
JPS581670U (en) excavator hydraulic circuit
JPS581671U (en) excavator hydraulic circuit
JPS5838862U (en) boom of work equipment
JPS5947772U (en) excavator hydraulic circuit
JPS59178008U (en) Auxiliary control valve device for agricultural tractors
JPS608750U (en) excavator hydraulic circuit
JPS6110366U (en) Front loader hydraulic circuit
JPS5846672U (en) cab power tail device
JPS5987203U (en) Vehicle hydraulic extractor
JPS59116465U (en) Blade work/scraper work switching device for construction vehicles
JPS59192960U (en) hydraulic circuit
JPS60178602U (en) Hydraulic circuit of hydraulic machine
JPS608744U (en) Construction machinery outrigger device
JPS60494U (en) Excavator hydraulic circuit
JPS60120035U (en) Brake device for construction machinery
JPS581668U (en) excavator hydraulic circuit
JPS5973454U (en) Hydraulic circuit of swing excavator
JPS59136004U (en) hydraulic circuit
JPS608751U (en) excavator hydraulic circuit
JPS6054806U (en) work vehicle
JPS58142186U (en) Hydraulic cab tail device
JPS60165557U (en) Hydraulic circuit for construction machinery
JPS616557U (en) Hydraulic circuit of hydraulic wheel shovel
JPS581669U (en) Hydraulic circuit for excavator rotation and boom swing
JPS58136849U (en) Hydraulic external extraction device for agricultural tractors