JPH0326801U - - Google Patents

Info

Publication number
JPH0326801U
JPH0326801U JP8828389U JP8828389U JPH0326801U JP H0326801 U JPH0326801 U JP H0326801U JP 8828389 U JP8828389 U JP 8828389U JP 8828389 U JP8828389 U JP 8828389U JP H0326801 U JPH0326801 U JP H0326801U
Authority
JP
Japan
Prior art keywords
actuator
hydraulic pump
valve
control device
drive source
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
JP8828389U
Other languages
Japanese (ja)
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 JP8828389U priority Critical patent/JPH0326801U/ja
Publication of JPH0326801U publication Critical patent/JPH0326801U/ja
Pending 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、本考案の建設機械における油圧ポン
プ吐出量制御装置を油圧掘削機に適用した実施例
を示す図、第２図は従来の技術を示す図である。 １……油圧ポンプ、２……作業機アクチユエー
タ、３……ローリングシリンダ、４，５，８……
操作弁、６……エンジン、７……コントローラ、
９……切り換え弁、１０……デセルシリンダ、１
１……燃料コントロールレバー、１２……ガバナ
レバー、１３……制御ポンプ、１４……ルースス
プリング、１５……バイパス管路。 FIG. 1 is a diagram showing an embodiment in which a hydraulic pump discharge amount control device for construction machinery according to the present invention is applied to a hydraulic excavator, and FIG. 2 is a diagram showing a conventional technique. 1... Hydraulic pump, 2... Work equipment actuator, 3... Rolling cylinder, 4, 5, 8...
Operation valve, 6...engine, 7...controller,
9...Switching valve, 10...Decel cylinder, 1
1... Fuel control lever, 12... Governor lever, 13... Control pump, 14... Loose spring, 15... Bypass pipe line.

Claims (1)

【実用新案登録請求の範囲】 (1) 共用油圧ポンプ１の吐出管路を、切換弁９
を介して第１アクチユエータ２および所定値以下
の作動速度を必要とする第２アクチユエータ３へ
、それぞれ第１アクチユエータ２用操作弁４およ
び第２アクチユエータ３用操作弁５を介して接続
し、前記第２アクチユエータ３の作動時には、前
記共用油圧ポンプ１用駆動源６の回転数を、前記
第２アクチユエータ３の所定作動速度に対応する
値に制御するようにしたことを特徴とする建設機
械における油圧ポンプ吐出量制御装置。 (2) 前記第(1)の請求項において、コントローラ
７から第２アクチユエータ３用操作弁５への操作
信号を検出して、前記共用油圧ポンプ１用駆動源
６の回転数を、前記第２アクチユエータ３の所定
作動速度に対応する値に制御するようにしたこと
を特徴とする建設機械における油圧ポンプ吐出量
制御装置。 (3) 前記第(1)の請求項において、コントローラ
７から第１アクチユエータ２用操作弁４への操作
信号が停止されたことを検出して、前記共用油圧
ポンプ１用駆動源６の回転数を、前記第２アクチ
ユエータ３の所定作動速度に対応する値に制御す
るようにしたことを特徴とする建設機械における
油圧ポンプ吐出量制御装置。[Scope of claim for utility model registration] (1) The discharge pipe of the shared hydraulic pump 1 is connected to the switching valve 9.
The first actuator 2 is connected to the first actuator 2 and the second actuator 3 which requires an operating speed below a predetermined value via an operating valve 4 for the first actuator 2 and an operating valve 5 for the second actuator 3, respectively. A hydraulic pump for construction machinery, characterized in that when the second actuator 3 is operated, the rotation speed of the drive source 6 for the shared hydraulic pump 1 is controlled to a value corresponding to a predetermined operating speed of the second actuator 3. Discharge rate control device. (2) In claim (1), an operation signal from the controller 7 to the operation valve 5 for the second actuator 3 is detected, and the rotation speed of the drive source 6 for the shared hydraulic pump 1 is controlled by the second actuator 3. A hydraulic pump discharge amount control device for a construction machine, characterized in that the control is performed to a value corresponding to a predetermined operating speed of an actuator 3. (3) In claim (1), when it is detected that the operation signal from the controller 7 to the operation valve 4 for the first actuator 2 is stopped, the rotational speed of the drive source 6 for the common hydraulic pump 1 is adjusted. A hydraulic pump discharge amount control device for a construction machine, characterized in that: is controlled to a value corresponding to a predetermined operating speed of the second actuator 3.
JP8828389U 1989-07-27 1989-07-27 Pending JPH0326801U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8828389U JPH0326801U (en) 1989-07-27 1989-07-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8828389U JPH0326801U (en) 1989-07-27 1989-07-27

Publications (1)

Publication Number Publication Date
JPH0326801U true JPH0326801U (en) 1991-03-19

Family

ID=31637906

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8828389U Pending JPH0326801U (en) 1989-07-27 1989-07-27

Country Status (1)

Country Link
JP (1) JPH0326801U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59217598A (en) * 1983-04-18 1984-12-07 クラ−ク・エクイプメント・コンパニ− Hydraulic device
JPS60252805A (en) * 1984-05-29 1985-12-13 Mitsuwa Seiki Co Ltd Control of fluid actuator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59217598A (en) * 1983-04-18 1984-12-07 クラ−ク・エクイプメント・コンパニ− Hydraulic device
JPS60252805A (en) * 1984-05-29 1985-12-13 Mitsuwa Seiki Co Ltd Control of fluid actuator

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