DE3464646D1 - Hydraulic circuit for a load-driving motor - Google Patents

Hydraulic circuit for a load-driving motor

Info

Publication number
DE3464646D1
DE3464646D1 DE8484112058T DE3464646T DE3464646D1 DE 3464646 D1 DE3464646 D1 DE 3464646D1 DE 8484112058 T DE8484112058 T DE 8484112058T DE 3464646 T DE3464646 T DE 3464646T DE 3464646 D1 DE3464646 D1 DE 3464646D1
Authority
DE
Germany
Prior art keywords
load
hydraulic cylinder
valve
piston
control valve
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.)
Expired
Application number
DE8484112058T
Other languages
English (en)
Inventor
Gary Thompson Barker
James Anton Miller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deere and Co
Original Assignee
Deere and Co
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 by Deere and Co filed Critical Deere and Co
Application granted granted Critical
Publication of DE3464646D1 publication Critical patent/DE3464646D1/de
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/003—Systems with load-holding valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20546—Type of pump variable capacity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30505—Non-return valves, i.e. check valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30505—Non-return valves, i.e. check valves
    • F15B2211/30515—Load holding valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3111—Neutral or centre positions the pump port being closed in the centre position, e.g. so-called closed centre
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3144—Directional control characterised by the positions of the valve element the positions being continuously variable, e.g. as realised by proportional valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
    • F15B2211/3157—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line
    • F15B2211/31576—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line having a single pressure source and a single output member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/321—Directional control characterised by the type of actuation mechanically
    • F15B2211/324—Directional control characterised by the type of actuation mechanically manually, e.g. by using a lever or pedal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40507—Flow control characterised by the type of flow control means or valve with constant throttles or orifices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40576—Assemblies of multiple valves
    • F15B2211/40584—Assemblies of multiple valves the flow control means arranged in parallel with a check valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41572—Flow control characterised by the connections of the flow control means in the circuit being connected to a pressure source and an output member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/42—Flow control characterised by the type of actuation
    • F15B2211/428—Flow control characterised by the type of actuation actuated by fluid pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50545—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using braking valves to maintain a back pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/86—Control during or prevention of abnormal conditions
    • F15B2211/863—Control during or prevention of abnormal conditions the abnormal condition being a hydraulic or pneumatic failure
    • F15B2211/8636—Circuit failure, e.g. valve or hose failure
DE8484112058T 1983-10-26 1984-10-09 Hydraulic circuit for a load-driving motor Expired DE3464646D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/545,567 US4610193A (en) 1983-10-26 1983-10-26 Load control system

Publications (1)

Publication Number Publication Date
DE3464646D1 true DE3464646D1 (en) 1987-08-13

Family

ID=24176741

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484112058T Expired DE3464646D1 (en) 1983-10-26 1984-10-09 Hydraulic circuit for a load-driving motor

Country Status (12)

Country Link
US (1) US4610193A (de)
EP (1) EP0141301B1 (de)
JP (1) JPS6098203A (de)
AT (1) ATE28233T1 (de)
AU (1) AU565152B2 (de)
BR (1) BR8405420A (de)
CA (1) CA1227725A (de)
DE (1) DE3464646D1 (de)
DK (1) DK512884A (de)
ES (1) ES537050A0 (de)
IE (1) IE55694B1 (de)
ZA (1) ZA848299B (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3508277A1 (de) * 1985-03-08 1986-09-11 Hans E. Winkelmann GmbH, 6074 Rödermark Geraet zur steuerung der bewegung eines kolbens in einem doppeltwirkenden pneumatikzylinder, insbesondere fuer pneumatisch betaetigbare schweisszangen
JPS622805U (de) * 1985-06-20 1987-01-09
US5046309A (en) * 1990-01-22 1991-09-10 Shin Caterpillar Mitsubishi Ltd. Energy regenerative circuit in a hydraulic apparatus
DE4107776A1 (de) * 1991-03-11 1992-09-17 Heilmeier & Weinlein Hydraulische steuervorrichtung
US5220862A (en) * 1992-05-15 1993-06-22 Caterpillar Inc. Fluid regeneration circuit
EP0681672B2 (de) * 1993-02-02 2000-09-20 PUTZMEISTER Aktiengesellschaft Verfahren zum fördern von vorzerkleinerten metallschrott oder dergleichen festkörper enthaltenden dickstoffen
JP2992434B2 (ja) * 1993-12-02 1999-12-20 日立建機株式会社 建設機械の油圧制御装置
US5579676A (en) * 1995-07-13 1996-12-03 Husco International, Inc. Hydraulic valve to maintain control in fluid-loss condition
DE10006908A1 (de) * 2000-02-16 2001-08-23 Caterpillar Sarl Genf Geneva Hydraulische Kolbenzylindereinheit für landwirtschaftliche Arbeitsmaschinen
KR100430398B1 (ko) * 2000-12-26 2004-05-04 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 건설기계용 낙하방지장치
US6701822B2 (en) 2001-10-12 2004-03-09 Caterpillar Inc Independent and regenerative mode fluid control system
US6715403B2 (en) 2001-10-12 2004-04-06 Caterpillar Inc Independent and regenerative mode fluid control system
AT412810B (de) * 2003-05-28 2005-07-25 Hoerbiger Automatisierungstech Bremsventil, insbesonders für hydraulische betätigungsanordnungen für bewegbare teile an fahrzeugen
DE102005043367B4 (de) * 2005-09-12 2016-09-08 Laeis Gmbh Steuervorrichtung und Steuerverfahren für eine Kolben-Zylinder-Anordnung
SE531754C2 (sv) * 2007-05-11 2009-07-28 Nordhydraulic Ab Hydraulisk lastkontrollventilanordning
SE544628C2 (en) * 2018-07-23 2022-09-27 Joab Foersaeljnings Ab Hydraulic system and method for controlling the speed and pressure of a hydraulic cylinder
JP6960585B2 (ja) * 2018-12-03 2021-11-05 Smc株式会社 流量コントローラ及びそれを備えた駆動装置

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2756724A (en) * 1955-06-23 1956-07-31 Henderson Y Stewart Safety valve lock arrangement
DE2025235A1 (de) * 1970-05-23 1971-12-09 Siemens Ag Fehlerortmeßeinrichtung fur Gleichstrom Ubertragungsleitungen
DE2118936A1 (de) * 1971-04-19 1973-02-22 Kockum Landsverk Ab Bremsvorrichtung an umsteuerbaren hydraulischen motoren
DE2406718A1 (de) * 1974-02-13 1975-08-21 Broehl Gmbh Maschf Dampfverhol- oder schleppwinde mit einer vorrichtung zur automatischen zugkraftregelung
NO138346C (no) * 1974-10-28 1978-08-16 Nordtool Ab Ventilanordning for beskyttelse av ledningssystem mot utilsiktede trykksenkninger
US4085855A (en) * 1976-02-02 1978-04-25 Massey-Ferguson Inc. Mechanism control
US4102250A (en) * 1976-08-16 1978-07-25 Caterpillar Tractor Co. Load check and bypass valve
US4147093A (en) * 1977-03-04 1979-04-03 J. I. Case Company Self-actuating fluid holding system
US4165675A (en) * 1977-04-07 1979-08-28 Caterpillar Tractor Co. Load check valve cylinder mounted
US4167892A (en) * 1977-04-07 1979-09-18 Caterpillar Tractor Co. Load check with mechanical venting means
DE2833971C2 (de) * 1978-08-03 1984-07-19 Wessel-Hydraulik Günther Wessel, 2940 Wilhelmshaven Leitungsbruchsicherungs-Vorrichtung zur Anordnung zwischen einem hydraulischen Steuergerät und wenigstens einem Arbeitszylinder
SE424664B (sv) * 1979-01-02 1982-08-02 Akermans Verkstad Ab Anordning vid grevmaskin for att begrensa rorelsehastigheten hos arbetshydraulens kolv vid endlege
JPS57205639A (en) * 1981-06-12 1982-12-16 Hitachi Constr Mach Co Ltd Closing device for oil-pressure circuit for inertia-mass driving
DE3225132C2 (de) * 1981-07-11 1995-08-17 Beringer Hydraulik Ag Neuheim Hydraulisches Sicherheitsbremsventil
DE3140266A1 (de) * 1981-10-10 1983-04-28 Mannesmann Rexroth GmbH, 8770 Lohr "vorrichtung zum steuern eines hydromotors"
US4466336A (en) * 1982-02-08 1984-08-21 Lakeland Hydraulics, Inc. Control valve for hydraulic motor apparatus

Also Published As

Publication number Publication date
CA1227725A (en) 1987-10-06
ES8601411A1 (es) 1985-10-16
JPS6098203A (ja) 1985-06-01
IE842750L (en) 1985-04-26
EP0141301B1 (de) 1987-07-08
ATE28233T1 (de) 1987-07-15
DK512884D0 (da) 1984-10-26
EP0141301A1 (de) 1985-05-15
AU565152B2 (en) 1987-09-03
BR8405420A (pt) 1985-09-03
US4610193A (en) 1986-09-09
ZA848299B (en) 1986-06-25
ES537050A0 (es) 1985-10-16
IE55694B1 (en) 1990-12-19
DK512884A (da) 1985-04-27
AU3191184A (en) 1985-05-02

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee