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ES8800001A1 - Apero de trabajo, en especial apero para el cultivo del suelo - Google Patents

Apero de trabajo, en especial apero para el cultivo del suelo

Info

Publication number
ES8800001A1
ES8800001A1 ES554714A ES554714A ES8800001A1 ES 8800001 A1 ES8800001 A1 ES 8800001A1 ES 554714 A ES554714 A ES 554714A ES 554714 A ES554714 A ES 554714A ES 8800001 A1 ES8800001 A1 ES 8800001A1
Authority
ES
Spain
Prior art keywords
valve
pressure
rod ends
responsive
cylinders
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
ES554714A
Other languages
English (en)
Other versions
ES554714A0 (es
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
Publication of ES554714A0 publication Critical patent/ES554714A0/es
Publication of ES8800001A1 publication Critical patent/ES8800001A1/es
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B63/00—Lifting or adjusting devices or arrangements for agricultural machines or implements
    • A01B63/14—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements drawn by animals or tractors
    • A01B63/24—Tools or tool-holders adjustable relatively to the frame
    • A01B63/32—Tools or tool-holders adjustable relatively to the frame operated by hydraulic or pneumatic means without automatic control
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B63/00—Lifting or adjusting devices or arrangements for agricultural machines or implements
    • A01B63/14—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements drawn by animals or tractors

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Zoology (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Soil Working Implements (AREA)
  • Agricultural Machines (AREA)
  • Lifting Devices For Agricultural Implements (AREA)

Abstract

MODIFICACIONES EN APERO PARA EL CULTIVO DEL SUELO. CONSISTENTES EN QUE: ENTRE LA PRIMERA ANIMA DE MANDO Y EL EXTREMO DEL LADO DEL EMBOLO DEL CILINDRO HIDRAULICO (20,22) ESTA PREVISTA UNA PRIMERA VALVULA DE CONTROL DE PRESION (40) GOBERNADA POR PRESION, CON LA QUE SE CONTROLA LA PRESION HACIA EL EXTREMO DEL LADO DEL EMBOLO DEL CILINDRO HIDRAULICO; ESTA PREVISTA, ENTRE LA SEGUNDA ANIMA DE MANDO Y EL EXTREMO DEL LADO DEL VASTAGO DEL EMBOLO DEL CILINDRO HIDRAULICO (20,22), UNA SEGUNDA VALVULA DE CONTROL DE PRESION (42) CON LA QUE SE CONTROLA LA PRESION HACIA EL EXTREMO DEL LADO DEL VASTAGO DEL EMBOLO CILINDRO HIDRAULICO.
ES554714A 1985-05-08 1986-05-07 Apero de trabajo, en especial apero para el cultivo del suelo Expired ES8800001A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/731,699 US4630526A (en) 1985-05-08 1985-05-08 Force control system including bypass flow path for implement with relatively movable frame parts

Publications (2)

Publication Number Publication Date
ES554714A0 ES554714A0 (es) 1987-10-16
ES8800001A1 true ES8800001A1 (es) 1987-10-16

Family

ID=24940621

Family Applications (1)

Application Number Title Priority Date Filing Date
ES554714A Expired ES8800001A1 (es) 1985-05-08 1986-05-07 Apero de trabajo, en especial apero para el cultivo del suelo

Country Status (9)

Country Link
US (1) US4630526A (es)
EP (1) EP0201046B1 (es)
AR (1) AR245332A1 (es)
AU (2) AU592336B2 (es)
CA (1) CA1263286A (es)
DE (1) DE3672672D1 (es)
DK (1) DK213186A (es)
ES (1) ES8800001A1 (es)
ZA (1) ZA863419B (es)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4630526A (en) * 1985-05-08 1986-12-23 Deere & Company Force control system including bypass flow path for implement with relatively movable frame parts
US4967851A (en) * 1989-10-03 1990-11-06 Deere & Company Agricultural depth control system including cross plumbed series cylinders
DE4023092C2 (de) * 1990-07-20 1998-07-23 Claas Saulgau Gmbh Landwirtschaftliche Arbeitsmaschine
US5201372A (en) * 1991-09-30 1993-04-13 Deere & Company Wing fold implement with hydraulic mode indicator
CA2164024C (en) * 1995-11-29 2005-08-16 James Wayne Henry Down-pressure system for agricultural implement
US5839516A (en) * 1996-03-12 1998-11-24 Unverferth Manufacturing Co., Inc. Folding frame assembly for a rolling harrow implement having a transport position in which the main frame is upwardly pivoted and the wing frames are forwardly pivoted
CA2289377C (en) * 1998-11-12 2008-11-04 Flexi-Coil Ltd. Unfold finger for a forwardly folding planting implement
US6698523B2 (en) * 2002-07-02 2004-03-02 Husco International, Inc. Electrohydraulic control system for implement lift cylinders
CN1932215B (zh) * 2006-09-30 2010-08-11 三一重工股份有限公司 用于抑制混凝土泵车臂架振动的方法及装置
UA110988C2 (uk) 2011-08-05 2016-03-10 Пресіжн Плентінг Елелсі Пристрій, системи і способи регулювання притискної сили рядного висівного апарата
US8858151B2 (en) * 2011-08-16 2014-10-14 Caterpillar Inc. Machine having hydraulically actuated implement system with down force control, and method
CN102352872A (zh) * 2011-10-20 2012-02-15 安徽山河矿业装备股份有限公司 一种采煤机调高液压系统
US8544557B2 (en) 2012-01-17 2013-10-01 Deere & Company Frame section pivot limiting device
US9609796B2 (en) 2013-10-17 2017-04-04 Abi Attachments, Inc. Grading tools for work machines and operation thereof
US10617059B2 (en) * 2016-06-21 2020-04-14 Macdon Industries Ltd. Crop machine with an electronically controlled hydraulic cylinder flotation system
US12114602B2 (en) 2020-06-17 2024-10-15 Deere & Company Corn head adjustment system with force relief
US11785890B2 (en) 2020-06-17 2023-10-17 Deere & Company Corn head adjustment system with integrated actuation

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3627059A (en) * 1969-12-22 1971-12-14 Deere & Co Gauge wheel assembly for agricultural implements
DE2020290C3 (de) * 1970-04-25 1973-11-22 Rheinmetall Gmbh, 4000 Duesseldorf Vorrichtung zum Steuern des Schließ gestelle einer Hohlkorperblasmaschine
US3824896A (en) * 1971-11-24 1974-07-23 Hoerner Waldorf Corp Hydraulic compression circuits
US3948327A (en) * 1974-06-26 1976-04-06 Deere & Company Wingfold configuration
DE3019290A1 (de) * 1980-05-21 1981-12-03 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Gleichlaufsteuerung fuer die hydraulischen messerzylinder eines messerschildes
US4335894A (en) * 1980-06-05 1982-06-22 International Harvester Co. Implement level lift system with rephasing valves
US4346763A (en) * 1980-11-28 1982-08-31 International Harvester Co. Agricultural implement sectional frame with depth limit
US4379491A (en) * 1981-03-23 1983-04-12 Deere & Company Leveling system for a wheeled implement
DE3237103C3 (de) * 1982-10-07 1997-01-23 Wessel Hydraulik Sicherheitsventil als Lasthalteventil in der Hebezeughydraulik
US4506898A (en) * 1984-02-02 1985-03-26 Hesston Corporation Drift eliminator for series hydraulic lift system on tillage implements and the like
US4630526A (en) * 1985-05-08 1986-12-23 Deere & Company Force control system including bypass flow path for implement with relatively movable frame parts

Also Published As

Publication number Publication date
DE3672672D1 (de) 1990-08-23
DK213186A (da) 1986-11-09
US4630526A (en) 1986-12-23
AU5643886A (en) 1986-11-13
AR245332A1 (es) 1994-01-31
ZA863419B (en) 1988-01-27
AU4135589A (en) 1989-12-21
ES554714A0 (es) 1987-10-16
DK213186D0 (da) 1986-05-07
EP0201046B1 (de) 1990-07-18
EP0201046A3 (en) 1987-09-02
AU608999B2 (en) 1991-04-18
CA1263286A (en) 1989-11-28
EP0201046A2 (de) 1986-11-12
AU592336B2 (en) 1990-01-11

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20040520