摘要:
A device for automatically adjusting the working width of the first plough body of a plough in accordance with the variable working width of subsequent plough bodies. A first hydraulic cylinder displaces a rear frame section laterally. A second hydraulic cylinder pivots the rear frame section to adjust a transverse spacing of the plough bodies. The first hydraulic cylinder includes a multi-stage cylinder. A first cylinder stage forms a main lateral control, and a second cylinder stage forms an automatic working-width control for the first plough body. The second cylinder stage is in hydraulic-fluid communication with the second hydraulic cylinder in a master-slave configuration. The second cylinder stage is master or the slave depending on a moving direction of the cylinder stage and the second hydraulic cylinder being slave or the master. Piston diameters are matched to provide a correction of a lateral displacement of the front frame section.
摘要:
The present invention relates to an agricultural machine (1) for working the soil or for sowing seeds, comprising a towed frame (2) and working members (3) distributed over a longitudinal bar (4) in a plurality of sections, said longitudinal bar (4) having at least two primary beams (4a, 4b) extending substantially transversely to the direction of forward movement (A) in a working configuration. The agricultural machine is characterised in that a secondary beam (10a, 10b) is connected to each primary beam (4a, 4b) by means of two devices having connecting rods (11), said secondary beams (10a, 10b) supporting said working members (3), and in that each secondary beam (10a, 10b) rests on the floor by means of two bearing wheels (12) and is capable of moving freely during work in order to follow the profile of the terrain.
摘要:
The invention concerns a device for controlling forces passing through the push bar (3) of the three-point hitch of a tractor vehicle (1) whereto is hitched a semi-mounted machine (7) via a double tree (5) and a gimbal-type linking component (6) interposed between the double tree (5) and the semi-mounted machine (7). Said device is characterized in that it consists of a control member (10, 1OA, 1OB) arranged between the linking component (6) and the semi-mounted machine (7) front part, said member (10, 10A, 10B) exerting an adjustable thrust or tensile force on the semi-mounted machine in a direction for pivoting the machine about a horizontal axis (D2) towards the ground and causing, by reaction of the semi-mounted machine (7) transmitted to the push bar (3) the tensile forces passing through the push bar (3) to be cancelled, reversed and/or modulated. The invention is applicable to a plough.
摘要:
Es wird eine Anbauschnittstelle zur Kopplung eines Arbeitsgerätes (22) an ein Arbeitsfahrzeug beschrieben, welches eine fahrzeugseitige Anbauvorrichtung (16), die wenigstens ein längenverstellbares Koppelelement aufweist, und ein mit der Anbauvorrichtung (16) koppelbares geräteseitiges Koppelgetriebe (30) aufweist. Um bei unterschiedlichen Arbeitsgeräten auf einfache Weise den Zugpunkt (P), die Arbeitsbreite und den Neigungswinkel des Arbeitsgerätes (22) automatisch auf vorgebbare Anforderungen einstellen zu können, ohne dass jedes der Arbeitsgeräte über eigene Steuerungssysteme verfügt, wird vorgeschlagen, dass das Koppelgetriebe (30) frei verschwenkbar ist und dass eine Steuereinrichtung vorgesehen ist, die Steuersignale zur Längenverstellung an wenigstens ein Koppelelement abgibt, sodass die Richtung der Wirkungslinie (L) des resultierenden Bodenwiderstandes, die Lage des durch das Koppelgetriebe (30) definierten Zugpunktes (P) und der Neigungswinkel zwischen Arbeitsfahrzeug und Arbeitsgerät (22) automatisch in vorgebbarer Weise eingestellt werden. Die Erfindung bezieht sich des weiteren auf eine Steuereinrichtung, die der Ansteuerung einer derartigen Anbauvorrichtung dient und eine Sensorik (41, 44, 54, 58) enthält, welche die relative Lage des Fahrzeugrumpfs (14) einerseits und des Arbeitsgerätrahmens (24) andererseits zu einem Kopplungsbezugssystem erfasst und/oder welche die Kräfte in den längenverstellbaren Koppelelementen (56) erfasst. Des weiteren sind Steuerungsmittel (52, 60) vorgesehen, welche Steuersignale ausgeben, um die Länge wenigstens eines längenverstellbaren Koppelelementes (56) in Abhängigkeit der Sensorsignale automatisch zu beeinflussen.
摘要:
The plough comprises a frame (4) connected to the transversal beam (3) of the draught-bar head (1), by means of a plough-beam (5) which constitutes one of the sides of the offsetting quadrilateral ABTE. The side AB which is common to the offsetting quadrilateral and the skewing quadrilateral ABCD, is made up of: an arm (22) integral with the frame (4) which extends from the axis B towards the axis A and, a lever (30) articulated between its two ends on an axis (31) arranged at the end of said arm (22), which lever is articulated on one side on axis A and on the other side on the offsetting cylinder (21), which cylinder is directly mounted on the plough-beam (5). The adjusting of the width by the action of the skewing cylinder (25) brings about a variation of the angle at the apex of the triangle formed by the axes A, (19) and (32) which results in the automatic correction of the offset X and gives it a value equal to the distance Z between two consecutive bodies.
摘要:
La charrue comporte une tête support (1) équipée d'un pivot (5) et d'un axe (12) portant respectivement le bâti (3) et un bras support (10) dont l'autre extrémité est solidaire dudit bâti (3). L'extrémité avant (9) du bâti (3) comporte un système de guidage au moyen d'une rainure (6) en arc de cercle dont le centre fictif (14) correspond à l'un des angles d'un parallélogramme dont les autres angles sont constitués par les axes (5, 12 et 13). Le déport du bâti (3) au moyen du vérin (15) interposé entre ce dernier et le bras (10), provoque un déplacement dudit bâti (3) parallèlement à lui-même. Un dispositif de réglage de l'axe (13) par rapport au bâti (3), au moyen d'un vérin à vis ou hydraulique (15), permet d'effectuer soit une correction de dévers, soit une variation de la largeur de travail des corps (4), soit encore un recentrage du bâti (3) pour le retournement.
摘要:
A reversible moldboard plow has a plow carrying beam (40, 41) swingably mounted at the rear crossbar (12) of a frame which carries trunnion mounted cylinders (50, 51) connected to the beam for moving the beam, the front of the frame carrying hitch pins (33, 34) for connection to a tractor hitch, the hitch pins being vertically movable in alternate relation in order to tilt the frame and the beam with the moldboards supported thereon. The hitch pins may be moved by independent cylinders and pistons (27, 28) or, alternately, by the movement of a transverse hitch bar on which they are mounted.