JPH0165758U - - Google Patents

Info

Publication number
JPH0165758U
JPH0165758U JP1987161635U JP16163587U JPH0165758U JP H0165758 U JPH0165758 U JP H0165758U JP 1987161635 U JP1987161635 U JP 1987161635U JP 16163587 U JP16163587 U JP 16163587U JP H0165758 U JPH0165758 U JP H0165758U
Authority
JP
Japan
Prior art keywords
steering
pump
engine
throttle
flow rate
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
JP1987161635U
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 JP1987161635U priority Critical patent/JPH0165758U/ja
Publication of JPH0165758U publication Critical patent/JPH0165758U/ja
Pending legal-status Critical Current

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Landscapes

  • Control And Safety Of Cranes (AREA)
  • Jib Cranes (AREA)
  • Fluid-Pressure Circuits (AREA)

Description

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

第１図は本考案の実施例を示す油圧回路図、第
２図は別の実施例を示す油圧回路図、第３図は本
考案によるエンジン回転数とステアリング側への
流入流量との関係を示す制御特性図、第４図は従
来の装置の場合の第３図相当図である。 １…エンジン、２…ステアリング用可変容量形
油圧ポンプ（可変ポンプ）、４…ステアリング制
御弁、５…ステアリングシリンダ（ステアリング
装置）、６…絞り、７…ポンプ傾転制御用アクチ
ユエータ。 Fig. 1 is a hydraulic circuit diagram showing an embodiment of the present invention, Fig. 2 is a hydraulic circuit diagram showing another embodiment, and Fig. 3 is a diagram showing the relationship between engine speed and inflow flow rate to the steering side according to the present invention. The control characteristic diagram shown in FIG. 4 is a diagram corresponding to FIG. 3 in the case of a conventional device. DESCRIPTION OF SYMBOLS 1... Engine, 2... Steering variable displacement hydraulic pump (variable pump), 4... Steering control valve, 5... Steering cylinder (steering device), 6... Throttle, 7... Actuator for pump tilt control.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] エンジンと、エンジンによつて駆動されるステ
アリング用可変容量形油圧ポンプと、上記ポンプ
の吐出油をステアリング装置に導くステアリング
制御弁とを備え、上記ポンプと制御弁との間に絞
りが設けられ、上記ポンプの吐出流量がステアリ
ングの必要最低流量以上で一定となるように上記
絞りの上流側と下流側との差圧に応じてポンプの
傾転を制御する制御手段が設けられていることを
特徴とする車両系建設機械のステアリング制御装
置。 comprising an engine, a variable displacement hydraulic pump for steering driven by the engine, and a steering control valve that guides oil discharged from the pump to the steering device, and a throttle is provided between the pump and the control valve, A control means is provided for controlling the tilting of the pump according to the differential pressure between the upstream side and the downstream side of the throttle so that the discharge flow rate of the pump is constant above the minimum flow rate required for steering. Steering control device for vehicle-based construction machinery.
JP1987161635U 1987-10-21 1987-10-21 Pending JPH0165758U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987161635U JPH0165758U (en) 1987-10-21 1987-10-21

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987161635U JPH0165758U (en) 1987-10-21 1987-10-21

Publications (1)

Publication Number Publication Date
JPH0165758U true JPH0165758U (en) 1989-04-27

Family

ID=31444750

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987161635U Pending JPH0165758U (en) 1987-10-21 1987-10-21

Country Status (1)

Country Link
JP (1) JPH0165758U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53140605A (en) * 1977-05-14 1978-12-07 Jidosha Kiki Co Ltd Variable capacity pump

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53140605A (en) * 1977-05-14 1978-12-07 Jidosha Kiki Co Ltd Variable capacity pump

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