JPS61162603U - - Google Patents

Info

Publication number
JPS61162603U
JPS61162603U JP1985046488U JP4648885U JPS61162603U JP S61162603 U JPS61162603 U JP S61162603U JP 1985046488 U JP1985046488 U JP 1985046488U JP 4648885 U JP4648885 U JP 4648885U JP S61162603 U JPS61162603 U JP S61162603U
Authority
JP
Japan
Prior art keywords
hydraulic pressure
hydraulic
circuit
piston
pressure supply
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
JP1985046488U
Other languages
English (en)
Other versions
JPH0333745Y2 (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 JP1985046488U priority Critical patent/JPH0333745Y2/ja
Priority to US06/827,952 priority patent/US4637482A/en
Publication of JPS61162603U publication Critical patent/JPS61162603U/ja
Application granted granted Critical
Publication of JPH0333745Y2 publication Critical patent/JPH0333745Y2/ja
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/07—Supply of pressurised fluid for steering also supplying other consumers ; control thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86622—Motor-operated
    • Y10T137/8663—Fluid motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Jib Cranes (AREA)
  • Servomotors (AREA)

Description

【図面の簡単な説明】
第１図はこの考案の一実施例を装備した自走式
作業車における油圧回路を示す回路図、第２図は
同実施例要部の具体構造を示す縦断面図、第３図
は第２図同様の縦断面図で第２図とは異なつた状
態を示すもの、第４図は作用を説明するための模
式的なグラフ、第５図は上記した自走式作業車の
概略側面図、第６図は他の実施例の要部の具体構
造を示す縦断面図、第７図ａ，ｂはそれぞれ、本
考案が解決しようとした問題点の一つを説明する
ための模式的断面図である。 １……パワーステアリング機構、２……油圧リ
フト装置、３……油圧ポンプ、４……吐出回路、
５……流量一定形流量調整弁、５ａ……弁体、５
ｂ……絞り、５ｃ……弁ばね、６……調整流回路
、７……パワーシリンダ、８……余剰流回路、９
……リフトシリンダ、１０……ピストン、１１…
…絞り。

Claims (1)

    【実用新案登録請求の範囲】
  1. パワーステアリング機構１と油圧リフト装置２
    とを備えた自走式作業車において、単一の油圧ポ
    ンプ３の吐出回路４に接続して流量一定形流量調
    整弁５を設け、この流量調整弁５の調整流回路６
    をパワーステアリング機構１のパワーシリンダ７
    に対する油圧供給回路に、また該流量調整弁５の
    余剰流回路８を油圧リフト装置２のリフトシリン
    ダ９に対する油圧供給回路に、それぞれ構成して
    ある油圧供給装置であつて、前記流量調整弁５の
    背後に該調整弁５の弁ばね５ｃの基端を受けるピ
    ストン１０を、その摺動範囲を規制して設け、こ
    のピストン１０の背面と前面とにそれぞれ、前記
    吐出回路４に挿入設置した絞り１１の一次側の油
    圧と二次側の油圧とを作用させると共に、上記絞
    り１１の絞り度を、前記油圧ポンプ３の回転数の
    増加時に該回転数が比較的低い範囲で上記ピスト
    ン１０が最後退位置から最前進位置まで前進せし
    められるような油圧差が該絞り１１の一次側と二
    次側との間に生ぜしめられるように設定したこと
    を特徴とする、自走式作業車における油圧供給装
    置。
JP1985046488U 1985-03-29 1985-03-29 Expired JPH0333745Y2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1985046488U JPH0333745Y2 (ja) 1985-03-29 1985-03-29
US06/827,952 US4637482A (en) 1985-03-29 1986-02-10 Hydraulic system in working vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985046488U JPH0333745Y2 (ja) 1985-03-29 1985-03-29

Publications (2)

Publication Number Publication Date
JPS61162603U true JPS61162603U (ja) 1986-10-08
JPH0333745Y2 JPH0333745Y2 (ja) 1991-07-17

Family

ID=12748595

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985046488U Expired JPH0333745Y2 (ja) 1985-03-29 1985-03-29

Country Status (2)

Country Link
US (1) US4637482A (ja)
JP (1) JPH0333745Y2 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002181004A (ja) * 2000-12-11 2002-06-26 Yanmar Diesel Engine Co Ltd 掘削旋回作業車のブームシリンダ用切換弁
JP2010190389A (ja) * 2009-02-20 2010-09-02 Kayaba Ind Co Ltd 油圧制御システム
JP2010196781A (ja) * 2009-02-25 2010-09-09 Kayaba Ind Co Ltd 油圧制御システム

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993002905A1 (en) * 1991-07-30 1993-02-18 Aura Systems, Inc. Variable gain servo assist
DE4224650A1 (de) * 1992-07-25 1994-01-27 Zahnradfabrik Friedrichshafen Hilfskraftlenkung, insbesondere für Kraftfahrzeuge
EP0683753A1 (de) * 1993-12-14 1995-11-29 Palfinger Aktiengesellschaft Hydraulische steuereinrichtung für einen ladekran
US7165397B2 (en) 2003-11-10 2007-01-23 Timberjack, Inc. Anti-stall pilot pressure control system for open center systems
CN1965169B (zh) * 2004-10-08 2012-02-08 施塔比鲁斯有限责任公司 流体线性驱动装置
US20110073192A1 (en) * 2009-07-24 2011-03-31 Hart David V System and method for managing load flow requirements for a tractor single pump hydraulic system
WO2012014006A1 (en) * 2010-07-26 2012-02-02 Hart, David, V. System and method for managing load flow requirements for a tractor single pump hydraulic system
CN103171620B (zh) * 2011-12-21 2017-02-15 北京市三一重机有限公司 一种多桥转向系统和多桥转向车辆
CN105179341B (zh) * 2015-10-22 2018-02-23 长沙福田汽车科技有限公司 垃圾转运车液压系统及垃圾转运车

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4213511A (en) * 1979-01-22 1980-07-22 International Harvester Company Constant flow hydraulic system
JPS5847377B2 (ja) * 1979-01-30 1983-10-21 日産自動車株式会社 自動車の液圧装置
US4385674A (en) * 1980-12-17 1983-05-31 Presley Glen T Load sensing power steering system
JPS57198404A (en) * 1981-05-31 1982-12-06 Fujikura Ltd Structure of heat resisting optical fiber core

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002181004A (ja) * 2000-12-11 2002-06-26 Yanmar Diesel Engine Co Ltd 掘削旋回作業車のブームシリンダ用切換弁
JP4532725B2 (ja) * 2000-12-11 2010-08-25 ヤンマー株式会社 掘削旋回作業車のブーム用方向切換弁
JP2010190389A (ja) * 2009-02-20 2010-09-02 Kayaba Ind Co Ltd 油圧制御システム
JP2010196781A (ja) * 2009-02-25 2010-09-09 Kayaba Ind Co Ltd 油圧制御システム

Also Published As

Publication number Publication date
US4637482A (en) 1987-01-20
JPH0333745Y2 (ja) 1991-07-17

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