JPH0369752U - - Google Patents

Info

Publication number
JPH0369752U
JPH0369752U JP1989132838U JP13283889U JPH0369752U JP H0369752 U JPH0369752 U JP H0369752U JP 1989132838 U JP1989132838 U JP 1989132838U JP 13283889 U JP13283889 U JP 13283889U JP H0369752 U JPH0369752 U JP H0369752U
Authority
JP
Japan
Prior art keywords
hydraulic
valve
electromagnetic proportional
proportional valve
tilt angle
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
JP1989132838U
Other languages
Japanese (ja)
Other versions
JPH0735161Y2 (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 JP1989132838U priority Critical patent/JPH0735161Y2/en
Publication of JPH0369752U publication Critical patent/JPH0369752U/ja
Application granted granted Critical
Publication of JPH0735161Y2 publication Critical patent/JPH0735161Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

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

第１図は本考案の実施例にかかる油圧走行車両
の油圧回路図、第２図は他の実施例の油圧回路図
、第３図は従来の油圧走行車両の油圧回路図であ
る。 １……油圧ポンプ、３……走行モータ、５……
アクチユエータ、６……電磁比例弁（電磁減圧弁
）、７，７ａ，９……油圧ライン、１０，１０Ａ
……緊急用操作弁、１１……非常用油圧ライン、
１５……電磁切換弁、Ｐａ，Ｐｂ……パイロツト
ライン又はパイロツト圧。 FIG. 1 is a hydraulic circuit diagram of a hydraulic vehicle according to an embodiment of the present invention, FIG. 2 is a hydraulic circuit diagram of another embodiment, and FIG. 3 is a hydraulic circuit diagram of a conventional hydraulic vehicle. 1...Hydraulic pump, 3...Travel motor, 5...
Actuator, 6... Solenoid proportional valve (electromagnetic pressure reducing valve), 7, 7a, 9... Hydraulic line, 10, 10A
...Emergency operation valve, 11...Emergency hydraulic line,
15... Solenoid switching valve, Pa, Pb... Pilot line or pilot pressure.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 電磁減圧弁等電磁比例弁でポンプ傾転角を制御
するものにおいて、該傾転角制御用のアクチユエ
ータと前記電磁比例弁とを結ぶ油圧ラインに該電
磁比例弁と並列的に緊急用操作弁を設けた非常用
油圧ラインを接続したことを特徴とする油圧走行
車両等の液圧ポンプ制御装置。 In a device that controls the pump tilt angle using an electromagnetic proportional valve such as an electromagnetic pressure reducing valve, an emergency operation valve is installed in parallel with the electromagnetic proportional valve in a hydraulic line connecting the actuator for controlling the tilt angle and the electromagnetic proportional valve. A hydraulic pump control device for a hydraulic vehicle, etc., characterized in that it is connected to an emergency hydraulic line provided therein.
JP1989132838U 1989-11-14 1989-11-14 Hydraulic pump controller for hydraulically driven vehicles Expired - Lifetime JPH0735161Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989132838U JPH0735161Y2 (en) 1989-11-14 1989-11-14 Hydraulic pump controller for hydraulically driven vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989132838U JPH0735161Y2 (en) 1989-11-14 1989-11-14 Hydraulic pump controller for hydraulically driven vehicles

Publications (2)

Publication Number Publication Date
JPH0369752U true JPH0369752U (en) 1991-07-11
JPH0735161Y2 JPH0735161Y2 (en) 1995-08-09

Family

ID=31680271

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989132838U Expired - Lifetime JPH0735161Y2 (en) 1989-11-14 1989-11-14 Hydraulic pump controller for hydraulically driven vehicles

Country Status (1)

Country Link
JP (1) JPH0735161Y2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011001985A (en) * 2009-06-17 2011-01-06 Tcm Corp Travel control device for working vehicle and working vehicle
JP2021134516A (en) * 2020-02-26 2021-09-13 日立建機株式会社 Construction machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61197853A (en) * 1985-02-26 1986-09-02 Hitachi Constr Mach Co Ltd Drive controller for hydraulic motor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61197853A (en) * 1985-02-26 1986-09-02 Hitachi Constr Mach Co Ltd Drive controller for hydraulic motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011001985A (en) * 2009-06-17 2011-01-06 Tcm Corp Travel control device for working vehicle and working vehicle
JP2021134516A (en) * 2020-02-26 2021-09-13 日立建機株式会社 Construction machine

Also Published As

Publication number Publication date
JPH0735161Y2 (en) 1995-08-09

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