ES256183A1 - Una instalaciën de mando hidraulico para tractor agricola - Google Patents

Una instalaciën de mando hidraulico para tractor agricola

Info

Publication number
ES256183A1
ES256183A1 ES0256183A ES256183A ES256183A1 ES 256183 A1 ES256183 A1 ES 256183A1 ES 0256183 A ES0256183 A ES 0256183A ES 256183 A ES256183 A ES 256183A ES 256183 A1 ES256183 A1 ES 256183A1
Authority
ES
Spain
Prior art keywords
discharge valve
valve
pump
commands
tractor
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
ES0256183A
Other languages
English (en)
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.)
Sigma
Original Assignee
Sigma
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 Sigma filed Critical Sigma
Publication of ES256183A1 publication Critical patent/ES256183A1/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
    • A01B63/02—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors
    • A01B63/10—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means
    • 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
    • A01B63/02—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors
    • A01B63/10—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means
    • A01B63/1006—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means the hydraulic or pneumatic means structurally belonging to the tractor
    • A01B63/1013—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means the hydraulic or pneumatic means structurally belonging to the tractor and being located inside the tractor body
    • 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
    • A01B63/02—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors
    • A01B63/10—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means
    • A01B63/111—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means regulating working depth of implements
    • A01B63/114—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means regulating working depth of implements to achieve a constant working depth
    • A01B63/1145—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means regulating working depth of implements to achieve a constant working depth for controlling weight transfer between implements and tractor wheels

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

Una instalación de mando hidráulico para tractor agrícola, esencialmente constituida por un gato de simple efecto, por una bomba de alimentación de marcha permanente, por un distribuidor susceptible de ocupar tres posiciones correspondientes respectivamente a la subida, a la bajada y al mantenimiento en posición del arado enganchado al tractor, por una válvula de descarga para la bomba y la cámara del gato y por una válvula de rentención del líquido contenido en esta cámara, siendo dichas válvulas de descarga y retención mandadas hidraulicamente por el distribuidor caracterizada por el hecho de que la válvula de retención está dispuesta bajo la forma de una válvula de tres direcciones sensible a la presión de impulsión de la bomba y susceptible, según que esta presión sea inferior o superior a un valor dado, de aislar separadamente o de comunicar juntos la cámara del gato, por intermedio de un conducto, la bomba y un conducto de evacuación sobre el que está dispuesta la válvula dedescarga, porque un paso en paralelo está dispuesto entre la impulsión de la bomba, aguas arriba de la válvula de retención y el conducto de evacuación, aguas arriba de la válvula de descarga y porque el distribuidor está dispuesto de tal manera que, en una primera posición (alzado) manda el cierre de la válvula de descarga y por consiguiente la obturación del conducto de evacuación, en una segunda posición (mantenimiento), manda la apertura de la válvula de descarga y la apertura del paso paralelo y en una tercera posición (descenso) manda la apertura de la válvula de descarga y el cierre del paso paralelo.
ES0256183A 1959-03-20 1960-03-01 Una instalaciën de mando hidraulico para tractor agricola Expired ES256183A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR789974A FR1229046A (fr) 1959-03-20 1959-03-20 Perfectionnements apportés aux installations de commande hydrauliques pour tracteurs agricoles

Publications (1)

Publication Number Publication Date
ES256183A1 true ES256183A1 (es) 1960-06-16

Family

ID=8712753

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0256183A Expired ES256183A1 (es) 1959-03-20 1960-03-01 Una instalaciën de mando hidraulico para tractor agricola

Country Status (5)

Country Link
CH (1) CH368961A (es)
DE (1) DE1184540B (es)
ES (1) ES256183A1 (es)
FR (1) FR1229046A (es)
OA (1) OA01399A (es)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE856240C (de) * 1951-08-08 1952-11-20 Int Harvester Co Hydraulischer Kraftheber mit einem Servomotor
DE929952C (de) * 1953-02-14 1955-07-07 Toussaint & Hess Gmbh Steuervorrichtung fuer einen einseitig beaufschlagbaren hydraulischen Arbeitskolben
AT192657B (de) * 1953-05-26 1957-10-25 David Brown Tractors Eng Ltd Hydraulische Hubvorrichtung für an Traktoren anbaubare Arbeitsgeräte
DE951319C (de) * 1953-11-06 1956-10-25 Bosch Gmbh Robert Regelorgan fuer hydraulische Kraftheber, insbesondere fuer Ackerschlepper
DE1049138B (de) * 1957-04-09 1959-01-22 Bosch Gmbh Robert Steuergeraet fuer Hydraulikanlagen

Also Published As

Publication number Publication date
FR1229046A (fr) 1960-09-02
DE1184540B (de) 1964-12-31
OA01399A (fr) 1969-07-04
CH368961A (fr) 1963-04-30

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