JPH0341212U - - Google Patents

Info

Publication number
JPH0341212U
JPH0341212U JP10104689U JP10104689U JPH0341212U JP H0341212 U JPH0341212 U JP H0341212U JP 10104689 U JP10104689 U JP 10104689U JP 10104689 U JP10104689 U JP 10104689U JP H0341212 U JPH0341212 U JP H0341212U
Authority
JP
Japan
Prior art keywords
switch
warm
switching valve
oil
cuts
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
JP10104689U
Other languages
Japanese (ja)
Other versions
JPH0735128Y2 (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 JP1989101046U priority Critical patent/JPH0735128Y2/en
Publication of JPH0341212U publication Critical patent/JPH0341212U/ja
Application granted granted Critical
Publication of JPH0735128Y2 publication Critical patent/JPH0735128Y2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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 drawings]

第１図は本考案の油圧および電気回路図、第２
図はコントローラ１０のフローチヤートである。 １……ネガコン信号発生管路、２……主ポンプ
、２ａ……制御部、３……パイロツトポンプ、４
……リモコン弁、４ａ，４ｂ，４ｃ……コントロ
ールバルブ、５……切換弁（ネガコン信号管路用
）、６……切換弁（パイロツト管路用）、７……
スイツチ、８……水温センサ、９……油温センサ
、１０……コントローラ、１１……絞り弁、Ｔ…
…タンク。 Figure 1 is the hydraulic and electrical circuit diagram of the present invention, Figure 2
The figure is a flowchart of the controller 10. DESCRIPTION OF SYMBOLS 1...Negative control signal generation pipe, 2...Main pump, 2a...Control unit, 3...Pilot pump, 4
...Remote control valve, 4a, 4b, 4c...Control valve, 5...Switching valve (for negative control signal line), 6...Switching valve (for pilot line), 7...
Switch, 8... Water temperature sensor, 9... Oil temperature sensor, 10... Controller, 11... Throttle valve, T...
…tank.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ネガテイブコントロール信号発生管路１と主ポ
ンプ２の制御部２ａとを連通又は遮断する切換弁
５と、パイロツトポンプ３とリモコン弁４とを連
通又は遮断する切換弁６と、暖機を開始又は中断
するためのスイツチ７と、水温センサ８及び油温
センサ９と、データを処理し暖機信号を出力する
コントローラ１０からなり、前記スイツチ７をＯ
Ｎしたとき前記両切換弁５，６が共に遮断側に切
り換えられ、前記両センサ８，９が水温及び油温
が共に設定温度以上であることを検出したとき前
記切換弁５，６が共に連通側に切り換えられるこ
とを特徴とする油温作業機の暖機回路。 A switching valve 5 that communicates or cuts off the negative control signal generation conduit 1 and the control section 2a of the main pump 2, a switching valve 6 that communicates or cuts off the pilot pump 3 and the remote control valve 4, and a switching valve that starts or interrupts warm-up. It consists of a switch 7 for turning the switch 7 on, a water temperature sensor 8, an oil temperature sensor 9, and a controller 10 for processing data and outputting a warm-up signal.
When the switch is N, both the switching valves 5 and 6 are switched to the cutoff side, and when the sensors 8 and 9 detect that both the water temperature and the oil temperature are higher than the set temperature, the switching valves 5 and 6 are both opened. A warm-up circuit for an oil-heated work machine characterized by being able to be switched to the side.
JP1989101046U 1989-08-31 1989-08-31 Warm-up circuit of hydraulic working machine Expired - Fee Related JPH0735128Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989101046U JPH0735128Y2 (en) 1989-08-31 1989-08-31 Warm-up circuit of hydraulic working machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989101046U JPH0735128Y2 (en) 1989-08-31 1989-08-31 Warm-up circuit of hydraulic working machine

Publications (2)

Publication Number Publication Date
JPH0341212U true JPH0341212U (en) 1991-04-19
JPH0735128Y2 JPH0735128Y2 (en) 1995-08-09

Family

ID=31650019

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989101046U Expired - Fee Related JPH0735128Y2 (en) 1989-08-31 1989-08-31 Warm-up circuit of hydraulic working machine

Country Status (1)

Country Link
JP (1) JPH0735128Y2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012047252A (en) * 2010-08-26 2012-03-08 Caterpillar Sarl Warming-up operation control device in hydraulic working machine
JP2016061386A (en) * 2014-09-18 2016-04-25 日立建機株式会社 Work machine
JP2021008838A (en) * 2019-06-28 2021-01-28 コベルコ建機株式会社 Blow-by gas freeze suppression method and control system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5181893U (en) * 1974-12-23 1976-06-30
JPS5954805A (en) * 1982-09-21 1984-03-29 Hitachi Constr Mach Co Ltd Hydraulically driving device with warming-up function
JPS6412112A (en) * 1987-07-07 1989-01-17 Hitachi Construction Machinery Warming-up device for hydraulic machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5181893U (en) * 1974-12-23 1976-06-30
JPS5954805A (en) * 1982-09-21 1984-03-29 Hitachi Constr Mach Co Ltd Hydraulically driving device with warming-up function
JPS6412112A (en) * 1987-07-07 1989-01-17 Hitachi Construction Machinery Warming-up device for hydraulic machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012047252A (en) * 2010-08-26 2012-03-08 Caterpillar Sarl Warming-up operation control device in hydraulic working machine
JP2016061386A (en) * 2014-09-18 2016-04-25 日立建機株式会社 Work machine
JP2021008838A (en) * 2019-06-28 2021-01-28 コベルコ建機株式会社 Blow-by gas freeze suppression method and control system

Also Published As

Publication number Publication date
JPH0735128Y2 (en) 1995-08-09

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees