JPS5943567U - Construction machinery hydraulic circuit - Google Patents

Construction machinery hydraulic circuit

Info

Publication number
JPS5943567U
JPS5943567U JP13528282U JP13528282U JPS5943567U JP S5943567 U JPS5943567 U JP S5943567U JP 13528282 U JP13528282 U JP 13528282U JP 13528282 U JP13528282 U JP 13528282U JP S5943567 U JPS5943567 U JP S5943567U
Authority
JP
Japan
Prior art keywords
construction machinery
hydraulic circuit
operation valve
dump
machinery 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
JP13528282U
Other languages
Japanese (ja)
Other versions
JPH0320373Y2 (en
Inventor
織本　尚之
Original Assignee
株式会社小松製作所
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 株式会社小松製作所 filed Critical 株式会社小松製作所
Priority to JP13528282U priority Critical patent/JPS5943567U/en
Publication of JPS5943567U publication Critical patent/JPS5943567U/en
Application granted granted Critical
Publication of JPH0320373Y2 publication Critical patent/JPH0320373Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Operation Control Of Excavators (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 drawings]

第１図は従来の油圧回路を示す回路図、第２図はこの考
案の一実施例になる建設機械の側面図、第３図は同油圧
回路図、第４図はりミツトス゛イッチ部分の拡大図であ
る。 ３は作業機、４はリフトシリンダ、６はパケット、８は
ダンプシリンダ、１０は油圧ポンプ、１１はダンプ操作
弁、１２はリフト操作弁１．１５はヘッド側回路、１６
は切換え弁、１７及び１８はリリーフ弁。Figure 1 is a circuit diagram showing a conventional hydraulic circuit, Figure 2 is a side view of a construction machine that is an embodiment of this invention, Figure 3 is a diagram of the hydraulic circuit, and Figure 4 is an enlarged view of the beam switch. be. 3 is a working machine, 4 is a lift cylinder, 6 is a packet, 8 is a dump cylinder, 10 is a hydraulic pump, 11 is a dump operation valve, 12 is a lift operation valve 1.15 is a head side circuit, 16
is a switching valve, and 17 and 18 are relief valves.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 油圧ポンプ１０より吐出される油圧をダンプ操作弁１１
を介してダンプシリンダ８へ、また一部をリフト操作弁
１２を介してリフトシリンダ４へ供給することにより、
作業機３のパケット６をダンプし、また上下動するもの
において上記ダンプシリンダ８のヘッド側回路１５に、
セット圧の異なる複数個のリリーフ弁１７．１８と、こ
れらリリーフ弁１７．１８を選択する切換弁１６を接続
してなる建設機械の作業機油圧回路。Dump operation valve 11 dumps hydraulic pressure discharged from hydraulic pump 10
By supplying a portion to the dump cylinder 8 via the lift operation valve 12 and a portion to the lift cylinder 4 via the lift operation valve 12,
In the head side circuit 15 of the dump cylinder 8 in the machine that dumps the packet 6 of the work machine 3 and moves up and down,
A working machine hydraulic circuit for construction machinery, which is formed by connecting a plurality of relief valves 17, 18 with different set pressures and a switching valve 16 for selecting these relief valves 17, 18.
JP13528282U 1982-09-08 1982-09-08 Construction machinery hydraulic circuit Granted JPS5943567U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13528282U JPS5943567U (en) 1982-09-08 1982-09-08 Construction machinery hydraulic circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13528282U JPS5943567U (en) 1982-09-08 1982-09-08 Construction machinery hydraulic circuit

Publications (2)

Publication Number Publication Date
JPS5943567U true JPS5943567U (en) 1984-03-22
JPH0320373Y2 JPH0320373Y2 (en) 1991-05-01

Family

ID=30304543

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13528282U Granted JPS5943567U (en) 1982-09-08 1982-09-08 Construction machinery hydraulic circuit

Country Status (1)

Country Link
JP (1) JPS5943567U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61294031A (en) * 1985-06-19 1986-12-24 Hitachi Constr Mach Co Ltd Oil-pressure circuit for excavator
WO2010110386A1 (en) * 2009-03-26 2010-09-30 株式会社小松製作所 Method for construction vehicle control and control device
WO2014132732A1 (en) * 2013-02-26 2014-09-04 カヤバ工業株式会社 Actuator unit

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61294031A (en) * 1985-06-19 1986-12-24 Hitachi Constr Mach Co Ltd Oil-pressure circuit for excavator
WO2010110386A1 (en) * 2009-03-26 2010-09-30 株式会社小松製作所 Method for construction vehicle control and control device
CN102362035A (en) * 2009-03-26 2012-02-22 株式会社小松制作所 Method for construction vehicle control and control device
JP5277449B2 (en) * 2009-03-26 2013-08-28 株式会社小松製作所 Work vehicle, work vehicle control method and control device
EP2412875A4 (en) * 2009-03-26 2017-02-01 Komatsu Ltd. Method for construction vehicle control and control device
EP3239408A3 (en) * 2009-03-26 2017-12-06 Komatsu Ltd. Control method and control apparatus for work vehicle
WO2014132732A1 (en) * 2013-02-26 2014-09-04 カヤバ工業株式会社 Actuator unit
JP2014163452A (en) * 2013-02-26 2014-09-08 Kayaba Ind Co Ltd Actuator
US10150488B2 (en) 2013-02-26 2018-12-11 Kyb Corporation Actuator unit

Also Published As

Publication number Publication date
JPH0320373Y2 (en) 1991-05-01

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