WO2014106288A1 - Agricultural machine, use of said machine and screw conveyor intended for such a machine - Google Patents

Agricultural machine, use of said machine and screw conveyor intended for such a machine Download PDF

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Publication number
WO2014106288A1
WO2014106288A1 PCT/BE2014/000001 BE2014000001W WO2014106288A1 WO 2014106288 A1 WO2014106288 A1 WO 2014106288A1 BE 2014000001 W BE2014000001 W BE 2014000001W WO 2014106288 A1 WO2014106288 A1 WO 2014106288A1
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WO
WIPO (PCT)
Prior art keywords
machine according
machine
frame
conveyor
bucket
Prior art date
Application number
PCT/BE2014/000001
Other languages
French (fr)
Inventor
Alain DEGROOTE
Original Assignee
Degroote Alain
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 Degroote Alain filed Critical Degroote Alain
Publication of WO2014106288A1 publication Critical patent/WO2014106288A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C3/00—Treating manure; Manuring
    • A01C3/04—Manure loaders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60D—VEHICLE CONNECTIONS
    • B60D5/00—Gangways for coupled vehicles, e.g. of concertina type
    • 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
    • A01B59/00—Devices specially adapted for connection between animals or tractors and agricultural machines or implements
    • A01B59/04—Devices specially adapted for connection between animals or tractors and agricultural machines or implements for machines pulled or pushed by a tractor
    • A01B59/042—Devices specially adapted for connection between animals or tractors and agricultural machines or implements for machines pulled or pushed by a tractor having pulling means arranged on the rear part of the tractor

Definitions

  • the invention relates to agricultural machines. It relates in particular to agricultural machinery used for the collection of solid or semi-solid agricultural amendments and their handling.
  • Agricultural machines used for this purpose include, at the front of a car chassis (mounted on tracks or, more generally, on wheels), a bucket with a blade, which is designed to be positioned at ground level and slide on it to pick up solid or semi-solid material to harvest. As the material thus collected accumulates in the bucket, it is transferred to the center of the bucket by means of a
  • the invention aims to remedy the aforementioned disadvantages of known agricultural machines.
  • the invention aims more particularly to provide an agricultural machine for the collection and handling of a solid or semi-solid agricultural amendment, which prevents the formation of jams in the pickup bucket.
  • the invention also aims to provide an agricultural machine for the collection and handling of a solid or semi-solid agricultural amendment on a field of culture, the operation and effectiveness of which are not affected by inequalities of the soil.
  • the invention aims in particular to provide a machine that is well suited for use on rough terrain.
  • the invention therefore aims to provide an agricultural machine for the collection and handling of a solid or semi-solid agricultural amendment on an agricultural field, which combines both high efficiency and high productivity.
  • the invention relates to an agricultural machine for picking up and handling a agricultural solid or semi-solid amendment, comprising a bucket which is fixed to the front of a motor vehicle and which contains a helical conveyor comprising two coaxial screws juxtaposed not reversed, said machine being characterized in that the peripheral zone of the screws coaxial is bent towards the junction area of the two screws.
  • the semi-solid adjective designates a viscous state intermediate between the solid state, manually deformable, and the liquid state.
  • a semi-solid material has, at rest, a volume and a defined shape, which can be modified under the effect of a low pressure, usually by means of the hand.
  • the friable materials belong to the solids. Examples of solid agricultural amendments to which the invention relates include manure and compost
  • Examples of semi-solid amendments include silt and fertile alluvium and foam from sweeteners (non-exhaustive list).
  • the chassis is normally mounted on one or more sets of wheels or on tracks, to enable it to circulate on an agricultural surface, such as the yard of a farm or, more generally, a field or field of culture.
  • the chassis being automobile, it is equipped with a propulsion unit to achieve its displacement on the agricultural surface defined above.
  • This propellant is not critical for the definition of the invention and can be easily selected by those skilled in the art.
  • a bucket is attached to the front of the chassis.
  • 'posterior (e)', 'longitudinal (e)', 'transverse (e)' and 'axial (e)' are defined in relation to the normal direction of progression of the chassis (and, a fortiori, of the machine) on the agricultural area.
  • the bucket conforms to those normally used in agricultural machinery used for the collection of solid or semi-solid agricultural amendments on the soil of an agricultural area. It normally includes a transverse tray provided, at the front, with a blade which is positioned to slide on the agricultural surface, under the material to be collected which passes in the tray.
  • the bucket bin contains a helical conveyor comprising a pair of coaxial pitched screws.
  • the helical conveyor is positioned in the bucket so that the common axis of the two screws is
  • the two screws are secured to each other (mounted on a common shaft). Their respective pitches are reversed and they are coupled to a motor so that the agricultural amendment collected in the bucket is transferred to their junction area to fall on a longitudinal conveyor.
  • the junction zone is preferably located on the normal axis of progression of the frame, the aforesaid longitudinal conveyor then being axial.
  • the chassis of the machine according to the invention being an automobile, it carries a motor.
  • This engine (hereinafter called the 'main motor') is used to actuate all the functional organs of the machine, in particular to move the frame on the agricultural surface and drive the helical conveyor.
  • the actuation of these functional units is usually operated by means of auxiliary hydraulic or electric motors, which are actuated from pumps or electric alternators driven by the main engine.
  • the choice of the main motor is not critical for the definition of the invention. It is usually a motor to
  • the control of the machine according to the invention can be operated by an operator on the agricultural field, by means of a remote control. It is however more convenient to operate from a cockpit arranged on the chassis.
  • the screws of the helical conveyor comprise a spiral metal plate, generally a steel sheet, although another material may also be suitable.
  • the peripheral zone of the spiral plate is folded. It is ideally folded towards the junction area of the two screws.
  • the angle formed by the folded area with the flank (or unfolded area) of the spiral plate of the helical conveyor screws is normally an obtuse angle. It is advantageously greater than 100 degrees and less than 175 degrees, for example between 110 and 170 degrees, the values of 120 and 150 degrees being preferred. The optimum value of the angle will depend on various parameters, among which include the diameter of the screws, their pitch and the agricultural amendment collected. It can be determined in each case by the skilled person, by means of routine work.
  • the height of the folded peripheral zone is a fraction of the height of the unfolded zone of the spiral plate (the height being, by definition, measured on a radius of the spiral plate, from the axis of the screw). In practice, the height of said folded peripheral zone is less than that of the unfolded zone. It is ideally less than 75% (preferably 50%) of the unfolded area and greater than 2% of it, values of 3 to 25% being recommended.
  • bent device of the spiral screw plate improves the movement of the agricultural material in the bucket and avoids the formation of untimely jams.
  • the edge of the folded peripheral zone is tapered. This embodiment has the advantage of debiting the agricultural material, facilitating its
  • the sliding of the agricultural material on the spiral plate causes a permanent and automatic sharpening of its tapered edge, which facilitates the cutting of the agricultural material.
  • the bucket is fixed to the frame by any suitable means.
  • a means for attaching the bucket to the chassis comprises an articulation around an axis parallel to the normal direction of movement of the frame on the agricultural surface.
  • the articulation is advantageously arranged on a cross member of a frame hinged to the frame about an axis parallel to the (x) train (s) of wheels of the frame.
  • the bucket is pivotable both about a longitudinal axis and about an axis parallel to the chassis wheel train (s).
  • a hitch connects the frame to a bucket disposed behind the frame and a conveyor is disposed longitudinally on the frame between the bucket and the bucket.
  • the bucket is normally mounted on one or more sets of wheels and is towed by the automobile chassis.
  • the conveyor has the function of transferring the agricultural material of the bucket into the bucket.
  • it comprises an anterior zone which is located under the junction zone of the two screws of the helical conveyor and a posterior zone which opens into the bucket or above it.
  • the conveyor preferably has an axial position on the frame.
  • the conveyor may for example consist of a flexible conveyor belt. Subsequently, to locate it more easily, this preferred embodiment of the machine according to the invention will be designated 'machine
  • a variant of the tipper-dump machine specifically concerns the case where the chassis carries a motor and a cockpit.
  • the cockpit is located in front of the engine and the longitudinal conveyor rises from front to rear, passes under the cab, overlooking the engine and opens above the bucket.
  • the cab can be moved laterally on the frame from a working position in which it overhangs the conveyor, to a maintenance position in which it is spaced from the conveyor.
  • the working position of the cab is the position it normally occupies on the chassis during normal operation of the tipper-dump machine. In the working position, the cab overlooks part of the conveyor.
  • the maintenance position is a position of the cabin, which makes the conveyor accessible to an operator to carry out the maintenance of said conveyor, to extract it from the chassis or to replace it with another conveyor.
  • the cabin does not overhang the conveyor, although this is not a mandatory requirement in the context of the invention.
  • the working position of the cockpit is an axial position.
  • the tipper-dump machine derives from an agricultural machine of more general design, comprising, according to the invention, a machine
  • this articulated hitch comprises an arm bearing a journal which is rotatably mounted in a sleeve attached to the trailer, the arm being fixed to a plate rotatably mounted on the frame of the self-propelled machine.
  • the plate may for example comprise a ring which is rotatably mounted in a ring integral with the frame, the arm comprising a fork which surrounds the ring and is fixed thereto.
  • it is advantageous to use a pair of jacks linking the frame of the self-propelled machine to the fork of the arm [the body of the jacks being for example articulated to the frame and their piston being hinged to the fork (or vice versa) ] .
  • connection of the articulated hitch to the trailer is normally removable.
  • any adequate means of liaison can be implemented, the most
  • a preferred connecting means combines an inverted U - beam, axially fixed under the trailer, a bar attached to the sleeve and nested in the beam and a coupling member of the bar to the beam.
  • a preferred coupling member comprises, on the one hand, a pivot integral with the beam and fitted into a claw integral with the bar and, on the other hand, a retractable pawl connecting the bar to the beam.
  • connection of the self-propelled machine to the trailer combines an inverted U-shaped beam, fixed axially under the trailer, a bar fixed to the sleeve of the hitch articulated and nested in the beam and a coupling member of the bar to the beam, said coupling member comprising, on the one hand, a pivot integral with the beam and fitted into a claw secured to the bar and on the other hand, a retractable ratchet for connecting the bar to the
  • the respective positions of the wheel train, the retractable wheel, the pivot and the claw are preferably arranged so that, by a maneuver of the cylinder of the retractable wheel, the aforementioned ratchet being retracted, the self-propelled machine tilts on its wheel train and the trailer tilts in opposite direction by rotation of the claw on the pivot.
  • the motor vehicle is used to tow the trailer. He can be limited to this function. Alternatively, it can be designed for one or more particular agricultural functions, in cooperation with the trailer, such as harvesting agricultural products on a crop field, spreading amendments or collecting agricultural products.
  • the trailer is not critical and depends on the area of use of the machine. As examples, it can be a cart, a bucket
  • the machine according to the invention is specially designed for the collection of solid or semi-solid agricultural amendments on agricultural fields.
  • the apparatus is specially designed for the collection of solid or semi-solid agricultural amendments on agricultural fields.
  • the invention therefore also relates to a
  • an agricultural machine according to the invention for the collection, on an agricultural or crop field, of solid or semi-solid agricultural amendments such as manure, compost, green manures, sugar scums and fertile sludge (illustrative list, not exhaustive).
  • the helical conveyor constitutes a particularly important component of the agricultural machine according to the invention.
  • This carrier associated with the bucket, actively participates in the collection of agricultural material. Consequently, the invention also relates to a helical conveyor for machines used for picking up
  • said helical conveyor comprising a pair of coaxial screws juxtaposed stepwise inverted, whose peripheral zone is folded.
  • the folded peripheral zone is preferably directed towards the junction zone of the two screws.
  • FIG. 1 is an overview of a tipper-bin machine according to the invention
  • Figure 2 is a partial view, from below, of the machine of Figure 1;
  • Figure 3 is a bottom view of the collector of the machine of Figure 1;
  • Figure 4 is a partial side view of the pickup machine 1;
  • Figure 5 shows on a large scale a constructive detail of the machine of Figures 1 to 4;
  • Figure 6 shows on a large scale another constructive detail of the machine of Figures 1 to 4;
  • Figure 7 shows, on a large scale, a detail of Figure 5, -
  • FIGS 8 and 9 show the articulated hitch of the machine of Figures 1 to 7;
  • Figures 10 and 11 are a side view of the tipper-grab machine of Figures 1 to 9;
  • FIG 12 is another view of the machine of Figures 10 and 11.
  • the same reference numerals designate the same elements.
  • 'dump picker' defined above. It consists of a collector designated as a whole by reference number 1 and a bucket designated as a whole by reference number 2.
  • the machine is intended to circulate on an agricultural field or crop and possibly on a road to reach a farm field or a farm.
  • the collector 1 comprises a chassis 3 mounted on a single train of wheels 4 and the bucket 2 is mounted on two sets of wheels 5.
  • the bucket 2 is coupled to the collector 1 by means of a coupling which will be explained more far.
  • a pair of retractable wheels 34 serves to support the pickup 1 to prevent it from tipping over its wheelset 4, when it is separated from the bucket 2.
  • Cylinders (not shown) connect the pair of retractable wheels 34 to the chassis 3 to allow them to retract when the collector 1 is attached to the bucket 2 and apply them on the ground when it is decided to separate the bucket of the collector.
  • the pickup 1 is a motor vehicle. It is designed to tow the bucket 2 on the field of culture. For this purpose, it comprises, on the frame 3, a diesel engine 6 (FIG 2, 3) and a cockpit 7 (FIG 1, 2, 4). The cockpit 7 is intended for an operator to control the machine. The engine 6 and the cabin 7 are arranged in the axis of the normal direction X of progress of the pickup 1. The engine 6 is disposed behind the driving cabin 7.
  • Pickup 1 is designed to pick up a solid or semi-solid agricultural amendment on a crop field. For this purpose, it comprises, at the front of the frame 3, a transverse bucket 8 provided with a transverse blade 9 and containing a helical conveyor generally designated by the reference notation FIG. 1, 3, 4).
  • the bucket 8 is fixed on a crosspiece 17 of a frame 18 which is articulated to the frame 3.
  • the helical conveyor 10 is formed of a pair of coaxial screws 11 and 12, juxtaposed and not inverted.
  • the two screws 11 and 12 are mounted on a common shaft 13 disposed in the bucket 8, transversely to the normal direction X of the advance of the collector 1.
  • the shaft 13 is coupled to a hydraulic motor (not shown) whose operation is ensured from the diesel engine 6.
  • the bucket 8 In its central part, the bucket 8 is pierced with an opening which opens above a conveyor 14 (FIG 4).
  • the conveyor 14 comprises a rubber conveyor belt, arranged axially on the frame 3. It is inclined so as to rise from the front to the rear to pass under the cockpit 7, overhang the engine 6 and open above of the bucket 2.
  • the collector 1 progresses on the field of culture in the direction of the arrow X by pulling the bucket 2.
  • the blade 9 slides on the ground and transfers the agricultural amendment in the bucket 8 where it is removed by the helical conveyor 10. This rotates in a suitable direction so that the screws 11 and 12 move the amendment agricultural to the center of the bucket 8, where it falls on the conveyor 14 which dumps it in the bucket 2.
  • the screws 11 and 12 are formed of a spiral steel sheet whose peripheral zone 15 is folded and directed towards the middle 16 of the helical conveyor (FIG 1, 5, 7).
  • the height of the folded peripheral zone 15 is approximately equal to 20% of the height of the unfolded zone (or flank) 26.
  • the angle Z between the folded zone 15 and the flank 26 of the screw is approximately equal to 135 degrees .
  • the peripheral zone 15 of the spiral sheet is advantageously tapered so that its edge is sharp.
  • the fixing of the bucket 8 to the cross member 17 comprises a hinge 19, whose axis is parallel to the direction of normal progression X of the pickup 1.
  • the blade 9 of the bucket 8 adapts to the unevenness and field accidents of the field of culture, by rotation of the bucket 8 on its articulation 19 and by tilting of the frame 18 on its joints to the frame 3.
  • the connection of the pickup 1 to the bucket 2 is achieved by means of an articulated hitch.
  • This articulated hitch is designated as a whole by the reference numeral 36 in FIGS. 2 and 3. It comprises a ring 21 rotatably mounted in a ring 20 which is fixed to the frame 3 (FIG. 6).
  • the ring 21 is clamped and immobilized in a fork 27 forming an end of an arm 28 ( Figure 8).
  • the other end of the arm 28 carries a pin 29 which is engaged in a sleeve 30 located at the end of a bar 31 ( Figures 8, 9 and 12).
  • a plate 37 ( Figure 9) attached to the pin 29 retains it in the sleeve 30, while allowing it to rotate in the sleeve.
  • the bar 31 is provided with a claw 35 ( Figures 9 and 12) whose function will be explained later.
  • An inverted U-beam 32 is fixed axially under the skip 2.
  • a pivot 33 is fixed to the bottom of the beam 32. The function of the pivot 33 will be explained later.
  • the cylinders of the retractable wheels 34 so that the assembly of the collector 1 and the bucket 2 descends, the claw 35 pivoting on the pivot 33 until the beam 32 overlaps and rests on the bar 31, automatically causing the locking of a pawl (not shown).
  • the locking of the pawl secures the beam 32 to the bar 31 and, consequently, that of the hitch.
  • the ratchet can to be unlocked to separate the bar 31 of the beam 32 and separate the pickup 1 of the bucket 2.
  • the bar 31 and the beam 32 may be provided respectively with coupling elements of hydraulic, pneumatic and / or electrical junction connectors for connecting functional members of the skip 2 to a source of energy present on the collector 1.
  • Examples of functional organs present on the bucket 2 are cited hydraulic cylinders and / or electric or pneumatic motors to tilt the bucket 2 on its chassis, to open or close doors 38 located at the rear of the bucket 2 ( figure 12) or to unlock the ratchet mentioned above (list
  • unlocking of the aforementioned ratchet can be performed by hand by an operator.
  • a first axis is the axis of rotation of the ring 21 in the ring 20. This axis is
  • the second axis is the axis of rotation of the pin 29 in its sleeve 30 and this axis coincides with the longitudinal axis or progression of the bucket 2.
  • a pair of jacks 25 connect the fork 27 to the frame 3 (FIG 2, 3). These cylinders 25 are coupled to a pump (not shown) which, driven by the diesel engine 6 and actuated from the cockpit 7, allows to direct the progress of the pickup 1 on the culture field.
  • the cabin 7 is laterally displaceable between a working position and a position of
  • the cabin 7 occupies an axial position on the chassis 3, as shown in FIG. 1.
  • the cabin is spaced laterally from its axial position to allow access to the conveyor 14, for the clean, repair or replace.
  • this fifth characteristic makes it possible to convert the machine according to the invention into a multi-purpose machine. It makes it possible to replace the bucket 8 and the helical screw 10 by another tool and to mount a conveyor 14 specially adapted to this tool.
  • tools include a device for harvesting rotating roots, potatoes or cereals or a device for spreading solid, semi-solid or liquid fertilizers. According to the tool
  • the conveyor 14 can be selected from conveyor belts, bucket conveyors and Archimedean screw conveyors (illustrative list, not exhaustive).

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  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Machines (AREA)

Abstract

The invention relates to an agricultural machine comprising a bucket (8) which is fixed to the front of a motor vehicle chassis (3) and which contains a screw conveyor (10) comprising two adjacent coaxial screws (11, 12) of opposite hand, the peripheral region (15) of which is bent towards the region (16) of the join between the two screws. The invention also relates to the use of this machine for the collection and handling of an agricultural material.

Description

Machine agricole, utilisation de ladite machine et transporteur hélicoïdal destiné à une telle machine  Agricultural machine, use of said machine and helical conveyor for such a machine
Domaine de 1 ' invention Field of the invention
L'invention se rapporte aux machines agricoles. Elle se rapporte notamment aux machines agricoles utilisées pour le ramassage d'amendements agricoles solides ou semi-solides et leur manutention.  The invention relates to agricultural machines. It relates in particular to agricultural machinery used for the collection of solid or semi-solid agricultural amendments and their handling.
État de la technique  State of the art
Certaines activités agricoles nécessitent de ramasser sur les champs de culture, des amendements agricoles qui y ont été déposés en vrac. Il peut s'agir d'amendements solides tels que du fumier, des écumes résiduaires des sucreries ou du compost, ou d'amendements semi-solides telles que boues. Des machines agricoles utilisées à cet effet comprennent, à l'avant d'un châssis automobile (monté sur chenilles ou, plus généralement, sur roues) , un godet muni d'une lame, qui est conçu pour être positionné au niveau du sol et glisser sur celui-ci de manière à ramasser les matières solides ou semi- solides à récolter. Au fur et à mesure que la matière ainsi ramassée s'accumule dans le godet, elle est transférée vers le centre du godet au moyen d'un  Some agricultural activities require the collection of farm amendments on farm fields that have been deposited in bulk. These may be solid amendments such as manure, residual foam from sweets or compost, or semi-solid amendments such as sludge. Agricultural machines used for this purpose include, at the front of a car chassis (mounted on tracks or, more generally, on wheels), a bucket with a blade, which is designed to be positioned at ground level and slide on it to pick up solid or semi-solid material to harvest. As the material thus collected accumulates in the bucket, it is transferred to the center of the bucket by means of a
transporteur hélicoïdal formé d'une paire de vis helical conveyor formed of a pair of screws
coaxiales juxtaposées, à pas inversés. Parvenue au centre du godet, la matière tombe sur un convoyeur axial qui l'évacué vers l'arrière du châssis. coaxial juxtaposed, with inverted steps. Arrived at the center of the bucket, the material falls on an axial conveyor which evacuated towards the rear of the chassis.
On observe, dans certaines applications, la  In certain applications, the
formation de bourrages intempestifs de la matière dans le godet. Outre qu'ils ralentissent le ramassage, ces bourrages font obstacle au transfert de la matière sur le convoyeur et nécessite des arrêts fréquents de la machine . formation of inadvertent jamming of the material in the cup. In addition to slowing down the collection, these jams impede the transfer of the material to the conveyor and requires frequent stops of the machine.
L'efficacité des machines agricoles connues du type décrit ci-dessus est affectée négativement par la présence d'inégalités sur le sol, telles que des  The efficiency of known agricultural machines of the type described above is negatively affected by the presence of inequalities on the ground, such as
ornières. Ces machines agricoles se prêtent mal a une utilisation sur un sol accidenté. On peut certes remédier en partie à cet inconvénient en réduisant la largeur du godet, mais les machines ainsi obtenues ont une ruts. These agricultural machines are not suitable for use on uneven ground. This disadvantage can be partly remedied by reducing the width of the bucket, but the machines thus obtained have a
productivité moindre, ce qui est un désavantage. productivity, which is a disadvantage.
Résumé de l'invention  Summary of the invention
L'invention vise à remédier aux désavantages précités des machines agricoles connues .  The invention aims to remedy the aforementioned disadvantages of known agricultural machines.
L'invention vise plus particulièrement à fournir une machine agricole pour le ramassage et la manutention d'un amendement agricole solide ou semi-solide, qui évite la formation de bourrages dans le godet de ramassage.  The invention aims more particularly to provide an agricultural machine for the collection and handling of a solid or semi-solid agricultural amendment, which prevents the formation of jams in the pickup bucket.
L'invention vise aussi à fournir une machine agricole pour le ramassage et la manutention d'un amendement agricole solide ou semi-solide sur un champ de culture, dont le fonctionnement et l'efficacité ne sont pas affectés par des inégalités du sol. L'invention vise notamment à fournir une machine qui est bien adaptée à une utilisation sur un terrain accidenté.  The invention also aims to provide an agricultural machine for the collection and handling of a solid or semi-solid agricultural amendment on a field of culture, the operation and effectiveness of which are not affected by inequalities of the soil. The invention aims in particular to provide a machine that is well suited for use on rough terrain.
L'invention vise dès lors à fournir une machine agricole pour le ramassage et la manutention d'un amendement agricole solide ou semi-solide sur un champ agricole, qui combine à la fois une grande efficacité et une grande productivité .  The invention therefore aims to provide an agricultural machine for the collection and handling of a solid or semi-solid agricultural amendment on an agricultural field, which combines both high efficiency and high productivity.
En conséquence, l'invention concerne une machine agricole pour le ramassage et la manutention d'un amendement agricole solide ou semi-solide, comprenant un godet qui est fixé à l'avant d'un châssis automobile et qui contient un transporteur hélicoïdal comprenant deux vis coaxiales juxtaposées a pas inversés, ladite machine étant caractérisée en ce que la zone périphérique des vis coaxiales est pliée vers la zone de jonction des deux vis . Accordingly, the invention relates to an agricultural machine for picking up and handling a agricultural solid or semi-solid amendment, comprising a bucket which is fixed to the front of a motor vehicle and which contains a helical conveyor comprising two coaxial screws juxtaposed not reversed, said machine being characterized in that the peripheral zone of the screws coaxial is bent towards the junction area of the two screws.
Description détaillée de l'invention  Detailed description of the invention
Dans le présent mémoire, l'adjectif semi-solide désigne un état visqueux intermédiaire entre l'état solide, indéformable manuellement, et l'état liquide. Par définition, une matière semi-solide possède, au repos, un volume et une forme définie, qui peut être modifiée sous l'effet d'une faible pression, généralement au moyen de la main. Dans le cadre de l'invention, les matières friables appartiennent aux matières solides. Des exemples d'amendements agricoles solides concernés par l'invention comprennent le fumier et le compost (liste non  In the present specification, the semi-solid adjective designates a viscous state intermediate between the solid state, manually deformable, and the liquid state. By definition, a semi-solid material has, at rest, a volume and a defined shape, which can be modified under the effect of a low pressure, usually by means of the hand. In the context of the invention, the friable materials belong to the solids. Examples of solid agricultural amendments to which the invention relates include manure and compost
exhaustive). Des exemples d'amendements semi-solides comprennent les limons et les alluvions fertiles et les écumes provenant des sucreries (liste non exhaustive) . exhaustive). Examples of semi-solid amendments include silt and fertile alluvium and foam from sweeteners (non-exhaustive list).
Dans la machine selon l'invention, le châssis est normalement monté sur un ou plusieurs trains de roues ou sur des chenilles, pour lui permettre de circuler sur une surface agricole, telle que la cour d'une exploitation agricole ou, plus généralement, un terrain ou champ de culture .  In the machine according to the invention, the chassis is normally mounted on one or more sets of wheels or on tracks, to enable it to circulate on an agricultural surface, such as the yard of a farm or, more generally, a field or field of culture.
Le châssis étant automobile, il est équipé d'un organe propulseur pour réaliser son déplacement sur la surface agricole définie plus haut. Cet organe propulseur n'est pas critique pour la définition de l'invention et peut être sélectionné aisément par l'homme du métier. Un godet est fixé à l'avant du châssis. The chassis being automobile, it is equipped with a propulsion unit to achieve its displacement on the agricultural surface defined above. This propellant is not critical for the definition of the invention and can be easily selected by those skilled in the art. A bucket is attached to the front of the chassis.
Dans le présent mémoire, les vocables 'avant', 'arrière', 'devant', 'derrière', 'antérieur (e) ' ,  In this memo, the terms 'front', 'rear', 'front', 'behind', 'previous (e)',
'postérieur (e) ' , ' longitudinal (e) ' , ' transversal (e) ' et 'axial (e)' sont définis par rapport au sens normal de progression du châssis (et, a fortiori, de la machine) sur la surface agricole.  'posterior (e)', 'longitudinal (e)', 'transverse (e)' and 'axial (e)' are defined in relation to the normal direction of progression of the chassis (and, a fortiori, of the machine) on the agricultural area.
Le godet est conforme à ceux équipant normalement les machines agricoles utilisées pour le ramassage d'amendements agricoles solides ou semi-solides sur le sol d'une surface agricole. Il comprend normalement un bac transversal muni, à l'avant, d'une lame qui est positionnée pour glisser sur la surface agricole, sous la matière à ramasser qui passe ainsi dans le bac.  The bucket conforms to those normally used in agricultural machinery used for the collection of solid or semi-solid agricultural amendments on the soil of an agricultural area. It normally includes a transverse tray provided, at the front, with a blade which is positioned to slide on the agricultural surface, under the material to be collected which passes in the tray.
Le bac du godet contient un transporteur hélicoïdal comprenant une paire de vis coaxiales à pas inversés. Le transporteur hélicoïdal est positionné dans le godet de telle sorte que l'axe commun des deux vis soit  The bucket bin contains a helical conveyor comprising a pair of coaxial pitched screws. The helical conveyor is positioned in the bucket so that the common axis of the two screws is
sensiblement parallèle à la lame et transversal au sens de progression normal du châssis sur la surface agricole. Les deux vis sont solidaires l'une de l'autre (montées sur un arbre commun) . Leurs pas respectifs sont inversés et elles sont couplées à un organe moteur de telle sorte que l'amendement agricole recueilli dans le godet soit transféré vers leur zone de jonction pour tomber alors sur un convoyeur longitudinal. La zone de jonction est de préférence située sur l'axe de progression normal du châssis, le convoyeur longitudinal susdit étant alors axial . substantially parallel to the blade and transverse to the direction of normal progression of the frame on the agricultural surface. The two screws are secured to each other (mounted on a common shaft). Their respective pitches are reversed and they are coupled to a motor so that the agricultural amendment collected in the bucket is transferred to their junction area to fall on a longitudinal conveyor. The junction zone is preferably located on the normal axis of progression of the frame, the aforesaid longitudinal conveyor then being axial.
Les éléments constitutifs de la machine selon The constituent elements of the machine according to
l'invention, qui viennent d'être décrits sont bien connus en technique agricole. Le châssis de la machine selon l'invention étant automobile, il porte un moteur. Ce moteur (ci-après dénommé 'moteur principal') sert à actionner tous les organes fonctionnels de la machine, notamment pour mouvoir le châssis sur la surface agricole et entraîner le transporteur hélicoïdal. L' actionnement de ces organes fonctionnels est habituellement opéré par l'intermédiaire de moteurs auxiliaires hydrauliques ou électriques, qui sont actionnés au départ de pompes ou d'alternateurs électriques entraînés par le moteur principal . Le choix du moteur principal n'est pas critique pour la définition de l'invention. Il est généralement un moteur à The invention, which have just been described are well known in agricultural technology. The chassis of the machine according to the invention being an automobile, it carries a motor. This engine (hereinafter called the 'main motor') is used to actuate all the functional organs of the machine, in particular to move the frame on the agricultural surface and drive the helical conveyor. The actuation of these functional units is usually operated by means of auxiliary hydraulic or electric motors, which are actuated from pumps or electric alternators driven by the main engine. The choice of the main motor is not critical for the definition of the invention. It is usually a motor to
combustion interne, par exemple un moteur Diesel, bien que d'autres types de moteurs puissent également internal combustion, for example a diesel engine, although other types of engines may also
convenir, par exemple des turbines. suitable, for example turbines.
Le pilotage de la machine selon l'invention peut être opéré par un opérateur sur le terrain agricole, au moyen d'une commande à distance. Il s'avère toutefois plus commode d'opérer à partir d'une cabine de pilotage disposée sur le châssis.  The control of the machine according to the invention can be operated by an operator on the agricultural field, by means of a remote control. It is however more convenient to operate from a cockpit arranged on the chassis.
De manière connue en soi, les vis du transporteur hélicoïdal comprennent une plaque spiralée en métal, généralement une tôle en acier, bien qu'une autre matière puisse également convenir. Conformément à l'invention la zone périphérique de la plaque spiralée est pliée. Elle est idéalement pliée vers la zone de jonction des deux vis .  In a manner known per se, the screws of the helical conveyor comprise a spiral metal plate, generally a steel sheet, although another material may also be suitable. According to the invention the peripheral zone of the spiral plate is folded. It is ideally folded towards the junction area of the two screws.
L'angle formé par la zone pliée avec le flanc {ou zone non pliée) de la plaque spiralée des vis du transporteur hélicoïdal est normalement un angle obtus. Il est avantageusement supérieur à 100 degrés et inférieur à 175 degrés, par exemple compris entre 110 et 170 degrés, les valeurs de 120 et 150 degrés étant préférées. La valeur optimum de l'angle va dépendre de divers paramètres, parmi lesquels figurent notamment le diamètre des vis, leur pas et l'amendement agricole ramassé. Elle peut être déterminée dans chaque cas par l'homme de métier, au moyen d'un travail de routine. The angle formed by the folded area with the flank (or unfolded area) of the spiral plate of the helical conveyor screws is normally an obtuse angle. It is advantageously greater than 100 degrees and less than 175 degrees, for example between 110 and 170 degrees, the values of 120 and 150 degrees being preferred. The optimum value of the angle will depend on various parameters, among which include the diameter of the screws, their pitch and the agricultural amendment collected. It can be determined in each case by the skilled person, by means of routine work.
La hauteur de la zone périphérique pliée est une fraction de la hauteur de la zone non pliée de la plaque spiralée (la hauteur étant, par définition, mesurée sur un rayon de la plaque spiralée, à partir de l'axe de la vis) . En pratique, la hauteur de ladite zone périphérique pliée est inférieure à celle de la zone non pliée. Elle est idéalement inférieure à 75 % (de préférence 50 %) de la zone non pliée et supérieure à 2 % de celle-ci, les valeurs de 3 à 25 % étant recommandées.  The height of the folded peripheral zone is a fraction of the height of the unfolded zone of the spiral plate (the height being, by definition, measured on a radius of the spiral plate, from the axis of the screw). In practice, the height of said folded peripheral zone is less than that of the unfolded zone. It is ideally less than 75% (preferably 50%) of the unfolded area and greater than 2% of it, values of 3 to 25% being recommended.
Dans la machine selon l'invention, la zone  In the machine according to the invention, the zone
périphérique pliée de la plaque spiralée des vis améliore le déplacement de la matière agricole dans le godet et évite qu'il se forme des bourrages intempestifs. bent device of the spiral screw plate improves the movement of the agricultural material in the bucket and avoids the formation of untimely jams.
Dans une forme de réalisation avantageuse de l'invention, l'arête de la zone périphérique pliée est effilée. Cette forme de réalisation présente l'avantage de débiter la matière agricole, facilitant son  In an advantageous embodiment of the invention, the edge of the folded peripheral zone is tapered. This embodiment has the advantage of debiting the agricultural material, facilitating its
déplacement dans le godet et réduisant le risque de colmatage. Le glissement de la matière agricole sur la plaque spiralée provoque un affûtage permanent et automatique de son arête effilée, ce qui facilite le débitage de la matière agricole. displacement in the bucket and reducing the risk of clogging. The sliding of the agricultural material on the spiral plate causes a permanent and automatic sharpening of its tapered edge, which facilitates the cutting of the agricultural material.
Dans la machine selon l'invention, le godet est fixé au châssis par tout moyen adéquat.  In the machine according to the invention, the bucket is fixed to the frame by any suitable means.
Dans une forme de réalisation avantageuse, un moyen de fixation du godet au châssis comprend une articulation autour d'un axe parallèle au sens normal de déplacement du châssis sur la surface agricole. L'articulation est avantageusement disposée sur une traverse d'un cadre articulé au châssis autour d'un axe parallèle au (x) train (s) de roues du châssis. Grâce à cet agencement, le godet peut pivoter à la fois autour d'un axe longitudinal et autour d'un axe parallèle au(x) train (s) de roues du châssis. Cette forme de réalisation de l'invention adapte la machine à une utilisation sur des terrains accidentés ou présentant des ornières ou d'autres dénivellations. In an advantageous embodiment, a means for attaching the bucket to the chassis comprises an articulation around an axis parallel to the normal direction of movement of the frame on the agricultural surface. The articulation is advantageously arranged on a cross member of a frame hinged to the frame about an axis parallel to the (x) train (s) of wheels of the frame. With this arrangement, the bucket is pivotable both about a longitudinal axis and about an axis parallel to the chassis wheel train (s). This embodiment of the invention adapts the machine to use on uneven terrain or with ruts or other unevenness.
Dans une forme de réalisation tout spécialement préférée de la machine selon l'invention, un attelage relie le châssis à une benne disposée derrière le châssis et un convoyeur est disposé longitudinalement sur le châssis, entre le godet et la benne. Dans cette forme de réalisation, la benne est normalement montée sur un ou plusieurs trains de roues et elle est tractée par le châssis automobile. Le convoyeur a pour fonction de transférer la matière agricole du godet dans la benne. À cet effet il comprend une zone antérieure qui est située sous la zone de jonction des deux vis du transporteur hélicoïdal et une zone postérieure qui débouche dans la benne ou au-dessus de celle-ci. Le convoyeur a de préférence une position axiale sur le châssis. Le convoyeur peut par exemple consister en une courroie transporteuse souple. Par la suite, pour la repérer plus facilement, cette forme de réalisation préférée de la machine selon l'invention sera désignée 'machine  In a particularly preferred embodiment of the machine according to the invention, a hitch connects the frame to a bucket disposed behind the frame and a conveyor is disposed longitudinally on the frame between the bucket and the bucket. In this embodiment, the bucket is normally mounted on one or more sets of wheels and is towed by the automobile chassis. The conveyor has the function of transferring the agricultural material of the bucket into the bucket. For this purpose it comprises an anterior zone which is located under the junction zone of the two screws of the helical conveyor and a posterior zone which opens into the bucket or above it. The conveyor preferably has an axial position on the frame. The conveyor may for example consist of a flexible conveyor belt. Subsequently, to locate it more easily, this preferred embodiment of the machine according to the invention will be designated 'machine
ramasseur-benne' . collector-dump '.
Une variante de la machine ramasseur-benne concerne spécifiquement le cas où le châssis porte un moteur et une cabine de pilotage. Dans cette variante de l'invention, la cabine de pilotage est située devant le moteur et le convoyeur longitudinal monte de l'avant vers l'arrière, passe sous la cabine, surplombe le moteur et débouche au-dessus de la benne. Dans cette variante de l'invention, il est avantageux que la cabine puisse être déplacée latéralement sur le châssis depuis une position de travail dans laquelle elle surplombe le convoyeur, jusqu'à une position de maintenance dans laquelle elle est écartée du convoyeur. Par définition, la position de travail de la cabine est la position qu'elle occupe normalement sur le châssis pendant une exploitation normale de la machine ramasseur-benne . Dans la position de travail, la cabine surplombe une partie du convoyeur. La position de maintenance est une position de la cabine, qui rend le convoyeur accessible à un opérateur pour réaliser l'entretien dudit convoyeur, pour l'extraire du châssis ou pour le remplacer par un autre convoyeur. A variant of the tipper-dump machine specifically concerns the case where the chassis carries a motor and a cockpit. In this variant of the invention, the cockpit is located in front of the engine and the longitudinal conveyor rises from front to rear, passes under the cab, overlooking the engine and opens above the bucket. In this variant of the invention, it is advantageous that the cab can be moved laterally on the frame from a working position in which it overhangs the conveyor, to a maintenance position in which it is spaced from the conveyor. By definition, the working position of the cab is the position it normally occupies on the chassis during normal operation of the tipper-dump machine. In the working position, the cab overlooks part of the conveyor. The maintenance position is a position of the cabin, which makes the conveyor accessible to an operator to carry out the maintenance of said conveyor, to extract it from the chassis or to replace it with another conveyor.
Idéalement, lorsqu'elle occupe la position de Ideally, when she occupies the position of
maintenance, la cabine ne surplombe pas le convoyeur, bien que ce ne soit pas une condition impérative dans le cadre de l'invention. Dans le cas préféré où le convoyeur occupe une position axiale sur le châssis, la position de travail de la cabine de pilotage est une position axiale. maintenance, the cabin does not overhang the conveyor, although this is not a mandatory requirement in the context of the invention. In the preferred case where the conveyor occupies an axial position on the frame, the working position of the cockpit is an axial position.
La machine ramasseur-benne selon l'invention dérive d'une machine agricole de conception plus générale, comprenant, conformément à l'invention, un engin  The tipper-dump machine according to the invention derives from an agricultural machine of more general design, comprising, according to the invention, a machine
automoteur dont le châssis est monté sur un train unique de roues, une remorque et un attelage liant la remorque à l'engin automoteur, ladite machine agricole se self-propelled vehicle, the chassis of which is mounted on a single train of wheels, a trailer and a coupling coupling the trailer to the self-propelled machinery, said agricultural machine
caractérisant en ce que l'attelage précité est un characterizing in that the aforementioned coupling is a
attelage articulé autour de deux axes perpendiculaires, dont l'un coïncide avec l'axe longitudinal de la remorque, l'autre axe étant perpendiculaire au plan du châssis de l'engin automoteur. hitch articulated around two perpendicular axes, one of which coincides with the longitudinal axis of the trailer, the other axis being perpendicular to the plane of the chassis of the self-propelled machine.
Dans un mode de réalisation particulier, cet attelage articulé comprend un bras portant un tourillon qui est monté à rotation dans un manchon fixé à la remorque, le bras étant fixé à un plateau monté à rotation sur le châssis de l'engin automoteur. Le plateau peut par exemple comprendre une bague qui est montée à rotation dans une couronne solidaire du châssis, le bras comprenant une fourche qui entoure la bague et est fixée à celle-ci. Pour diriger la machine agricole, on fait avantageusement usage d'une paire de vérins liant le châssis de l'engin automoteur à la fourche du bras [le corps des vérins étant par exemple articulés au châssis et leurs piston étant articulé à la fourche (ou vice- versa) ] .  In a particular embodiment, this articulated hitch comprises an arm bearing a journal which is rotatably mounted in a sleeve attached to the trailer, the arm being fixed to a plate rotatably mounted on the frame of the self-propelled machine. The plate may for example comprise a ring which is rotatably mounted in a ring integral with the frame, the arm comprising a fork which surrounds the ring and is fixed thereto. To steer the agricultural machine, it is advantageous to use a pair of jacks linking the frame of the self-propelled machine to the fork of the arm [the body of the jacks being for example articulated to the frame and their piston being hinged to the fork (or vice versa) ] .
Dans le mode de réalisation qui vient d'être décrit, la liaison de l'attelage articulé à la remorque est normalement amovible. À cet effet, tout moyen de liaison adéquat peut être mis en œuvre, le moyen le plus  In the embodiment which has just been described, the connection of the articulated hitch to the trailer is normally removable. For this purpose, any adequate means of liaison can be implemented, the most
judicieux étant aisément accessible à l'homme du métier. Un moyen de liaison recommandé combine une poutrelle en U inversé, fixée axialement sous la remorque, une barre fixée au manchon et emboîtée dans la poutrelle et un organe d' accouplement de la barre a la poutrelle . Un organe d'accouplement préféré comprend, d'une part, un pivot solidaire de la poutrelle et emboîté dans une griffe solidaire de la barre et, d'autre part, un cliquet escamotable de jonction de la barre à la poutrelle. judicious being easily accessible to those skilled in the art. A preferred connecting means combines an inverted U - beam, axially fixed under the trailer, a bar attached to the sleeve and nested in the beam and a coupling member of the bar to the beam. A preferred coupling member comprises, on the one hand, a pivot integral with the beam and fitted into a claw integral with the bar and, on the other hand, a retractable pawl connecting the bar to the beam.
Dans la machine agricole qui vient d'être décrite, dans laquelle l'engin automoteur est monté sur un train unique de roues, il peut être avantageux de prévoir une roue escamotable, qui est conçue pour supporter ledit engin automoteur, en coopération avec son train de roues, lorsque ledit engin est désolidarisé de la remorque. Dans cette forme de réalisation de l'invention, la mise en place ou l'escamotage de la roue escamotable est In the agricultural machine which has just been described, in which the self-propelled machine is mounted on a single train of wheels, it may be advantageous to provide a retractable wheel, which is designed to support said self-propelled machine, in cooperation with its wheel train, when said machine is disengaged from the trailer. In this embodiment of the invention, the placing or retracting of the retractable wheel is
généralement opéré au moyen d'un vérin mécanique ou hydraulique reliant la roue escamotable au châssis de l'engin automoteur. Cette forme de réalisation de l'invention est avantageusement combinée au mode de réalisation décrit plus haut, dans lequel la liaison de l'engin automoteur à la remorque combine une poutrelle en U inversé, fixée axialement sous la remorque, une barre fixée au manchon de l'attelage articulé et emboîtée dans la poutrelle et un organe d'accouplement de la barre à la poutrelle, ledit organe d'accouplement comprenant, d'une part, un pivot solidaire de la poutrelle et emboîté dans une griffe solidaire de la barre et, d'autre part, un cliquet escamotable de jonction de la barre à la generally operated by means of a mechanical or hydraulic jack connecting the retractable wheel to the chassis of the self-propelled machine. This embodiment of the invention is advantageously combined with the embodiment described above, in which the connection of the self-propelled machine to the trailer combines an inverted U-shaped beam, fixed axially under the trailer, a bar fixed to the sleeve of the hitch articulated and nested in the beam and a coupling member of the bar to the beam, said coupling member comprising, on the one hand, a pivot integral with the beam and fitted into a claw secured to the bar and on the other hand, a retractable ratchet for connecting the bar to the
poutrelle. À cet effet, selon l'invention, les positions respectives du train de roues, de la roue escamotable, du pivot et de la griffe sont de préférence agencées de telle sorte que, par une manœuvre du vérin de la roue escamotable, le cliquet précité étant escamoté, l'engin automoteur bascule sur son train de roues et la remorque bascule en sens inverse par rotation de la griffe sur le pivot . beam. For this purpose, according to the invention, the respective positions of the wheel train, the retractable wheel, the pivot and the claw are preferably arranged so that, by a maneuver of the cylinder of the retractable wheel, the aforementioned ratchet being retracted, the self-propelled machine tilts on its wheel train and the trailer tilts in opposite direction by rotation of the claw on the pivot.
Dans la machine agricole qui vient d'être décrite, on obtient des résultats équivalents en inversant les positions respectives du plateau, du bras, de la  In the agricultural machine which has just been described, equivalent results are obtained by reversing the respective positions of the plateau, the arm, the
poutrelle, du pivot et de la griffe. beam, pivot and claw.
Dans la machine agricole selon l'invention, l'engin automobile sert à tracter la remorque. Il peut être limité à cette fonction. En variante, il peut être conçu pour une ou plusieurs fonctions agricoles particulières, en coopération avec la remorque, telles que la récolte de produits agricoles sur un champ de culture, l'épandage d'amendements ou le ramassage de produits agricolesIn the agricultural machine according to the invention, the motor vehicle is used to tow the trailer. He can be limited to this function. Alternatively, it can be designed for one or more particular agricultural functions, in cooperation with the trailer, such as harvesting agricultural products on a crop field, spreading amendments or collecting agricultural products.
(liste non limitative) . La remorque n'est pas critique et dépend du domaine d'utilisation de la machine. À titre d'exemples, elle peut être un chariot, une benne (non-exhaustive list). The trailer is not critical and depends on the area of use of the machine. As examples, it can be a cart, a bucket
(basculante ou non) ou un chariot portant une citerne (liste non exhaustive) .  (tilting or not) or a carriage carrying a tank (non-exhaustive list).
La machine selon l'invention est spécialement conçue pour le ramassage d'amendements agricoles solides ou semi-solides sur des champs agricoles. Dans cette forme de réalisation préférée de l'invention, l'engin  The machine according to the invention is specially designed for the collection of solid or semi-solid agricultural amendments on agricultural fields. In this preferred embodiment of the invention, the apparatus
automoteur et la remorque sont respectivement le self propelled and the trailer are respectively the
ramasseur et la benne définis plus haut. picker and the bucket defined above.
L'invention concerne dès lors également une  The invention therefore also relates to a
utilisation d'une machine agricole conforme à l'invention pour le ramassage, sur un champ agricole ou de culture, d'amendements agricoles solides ou semi-solides tels que du fumier, du compost, des engrais verts, des écumes de sucreries et des boues fertiles (liste exemplative, non exhaustive) . use of an agricultural machine according to the invention for the collection, on an agricultural or crop field, of solid or semi-solid agricultural amendments such as manure, compost, green manures, sugar scums and fertile sludge (illustrative list, not exhaustive).
Le transporteur hélicoïdal constitue un composant particulièrement important de la machine agricole selon l'invention. Ce transporteur, associé au godet, participe activement au ramassage de la matière agricole. En conséquence, l'invention concerne aussi un transporteur hélicoïdal pour machines servant au ramassage  The helical conveyor constitutes a particularly important component of the agricultural machine according to the invention. This carrier, associated with the bucket, actively participates in the collection of agricultural material. Consequently, the invention also relates to a helical conveyor for machines used for picking up
d'amendements agricoles solides ou semi-solides sur des surfaces agricoles, ledit transporteur hélicoïdal comprenant une paire de vis coaxiales juxtaposées à pas inversés, dont la zone périphérique est pliée. La zone périphérique pliée est de préférence dirigée vers la zone de jonction des deux vis. of solid or semi-solid agricultural amendments on agricultural surfaces, said helical conveyor comprising a pair of coaxial screws juxtaposed stepwise inverted, whose peripheral zone is folded. The folded peripheral zone is preferably directed towards the junction zone of the two screws.
Brève description des figures  Brief description of the figures
Des particularités et détails de l'invention vont apparaître au cours de la description suivante des figures annexées, qui représentent quelques formes de réalisation particulières de l'invention.  Features and details of the invention will become apparent from the following description of the accompanying figures, which show some particular embodiments of the invention.
La figure 1 est une vue d'ensemble d'une machine ramasseur-benne conforme à l'invention ;  Figure 1 is an overview of a tipper-bin machine according to the invention;
La figure 2 est une vue partielle, par le dessous, de la machine de la figure 1 ;  Figure 2 is a partial view, from below, of the machine of Figure 1;
La figure 3 est une vue par le dessous, du ramasseur de la machine de la figure 1 ;  Figure 3 is a bottom view of the collector of the machine of Figure 1;
La figure 4 est une vue latérale partielle du ramasseur de la machine 1 ;  Figure 4 is a partial side view of the pickup machine 1;
La figure 5 montre à grande échelle un détail constructif de la machine des figures 1 à 4 ;  Figure 5 shows on a large scale a constructive detail of the machine of Figures 1 to 4;
La figure 6 montre à grande échelle un autre détail constructif de la machine des figures 1 à 4 ;  Figure 6 shows on a large scale another constructive detail of the machine of Figures 1 to 4;
La figure 7 montre, à grande échelle, un détail de la figure 5 ,- Figure 7 shows, on a large scale, a detail of Figure 5, -
Les figures 8 et 9 montrent l'attelage articulé de la machine des figures 1 à 7 ; Figures 8 and 9 show the articulated hitch of the machine of Figures 1 to 7;
Les figures 10 et 11 sont une vue latérale de la machine ramasseur-benne des figures 1 à 9 ;  Figures 10 and 11 are a side view of the tipper-grab machine of Figures 1 to 9;
La figure 12 est une autre vue de la machine des figures 10 et 11. Dans ces figures, les mêmes numéros de référence désignent les mêmes éléments . Figure 12 is another view of the machine of Figures 10 and 11. In these figures, the same reference numerals designate the same elements.
Description détaillée de modes de réalisation particuliers Detailed description of particular embodiments
La machine représentée aux figures est du type The machine shown in the figures is of the type
'ramasseur-benne' défini plus haut. Elle comprend un ramasseur désigné dans son ensemble par la notation de référence 1 et une benne désignée dans son ensemble par la notation de référence 2.  'dump picker' defined above. It consists of a collector designated as a whole by reference number 1 and a bucket designated as a whole by reference number 2.
La machine est destinée à circuler sur un champ agricole ou de culture et, éventuellement, sur une route pour atteindre un champ agricole ou une exploitation agricole. À cet effet, le ramasseur 1 comprend un châssis 3 monté sur un train unique de roues 4 et la benne 2 est montée sur deux trains de roues 5. La benne 2 est attelée au ramasseur 1 au moyen d'un attelage qui sera explicité plus loin. Une paire de roues escamotables 34 sert à supporter le ramasseur 1 pour éviter qu'il bascule sur son train de roues 4, lorsqu'il est dissocié de la benne 2. Des vérins {non représentés) relient la paire de roues escamotables 34 au châssis 3 pour permettre de les escamoter lorsque le ramasseur 1 est fixé à la benne 2 et de les appliquer sur le sol lorsque l'on décide de dissocier la benne du ramasseur.  The machine is intended to circulate on an agricultural field or crop and possibly on a road to reach a farm field or a farm. For this purpose, the collector 1 comprises a chassis 3 mounted on a single train of wheels 4 and the bucket 2 is mounted on two sets of wheels 5. The bucket 2 is coupled to the collector 1 by means of a coupling which will be explained more far. A pair of retractable wheels 34 serves to support the pickup 1 to prevent it from tipping over its wheelset 4, when it is separated from the bucket 2. Cylinders (not shown) connect the pair of retractable wheels 34 to the chassis 3 to allow them to retract when the collector 1 is attached to the bucket 2 and apply them on the ground when it is decided to separate the bucket of the collector.
Le ramasseur 1 est un engin automobile . Il est conçu pour tracter la benne 2 sur le champ de culture . À cet effet, il comprend, sur le châssis 3, un moteur Diesel 6 (FIG. 2, 3) et une cabine de pilotage 7 (FIG. 1, 2, 4) . La cabine de pilotage 7 est destinée à un opérateur pour piloter la machine. Le moteur 6 et la cabine 7 sont disposés dans l'axe du sens normal X de progression du ramasseur 1. Le moteur 6 est disposé derrière la cabine de pilotage 7. Le ramasseur 1 est conçu pour ramasser un amendement agricole solide ou semi-solide sur un champ de culture. À cet effet, il comprend, à l'avant du châssis 3, un godet transversal 8 pourvu d'une lame transversale 9 et contenant un transporteur hélicoïdal désigné dans son ensemble par la notation de référence 10 FIG. 1, 3, 4) . Le godet 8 est fixé sur une traverse 17 d'un cadre 18 qui est articulé au châssis 3. Lorsque le ramasseur 1 est positionné sur une surface horizontale, la traverse 17 est horizontale et l'axe d'articulation du cadre 18 au châssis 3 est également horizontal. Le transporteur hélicoïdal 10 est formé d'une paire de vis coaxiales 11 et 12, juxtaposées et à pas inversés. Les deux vis 11 et 12 sont montées sur un arbre commun 13 disposé dans le godet 8, transversalement au sens normal X d'avancement du ramasseur 1. L'arbre 13 est couplé à un moteur hydraulique {non représenté) dont le fonctionnement est assuré à partir du moteur Diesel 6. Dans sa partie centrale, le godet 8 est percé d'une ouverture qui débouche au-dessus d'un convoyeur 14 (FIG. 4) . Le convoyeur 14 comprend une courroie transporteuse en caoutchouc, disposée axialement sur le châssis 3. Il est incliné de manière à monter de l'avant vers l'arrière pour passer sous la cabine de pilotage 7, surplomber le moteur 6 et déboucher au-dessus de la benne 2. The pickup 1 is a motor vehicle. It is designed to tow the bucket 2 on the field of culture. For this purpose, it comprises, on the frame 3, a diesel engine 6 (FIG 2, 3) and a cockpit 7 (FIG 1, 2, 4). The cockpit 7 is intended for an operator to control the machine. The engine 6 and the cabin 7 are arranged in the axis of the normal direction X of progress of the pickup 1. The engine 6 is disposed behind the driving cabin 7. Pickup 1 is designed to pick up a solid or semi-solid agricultural amendment on a crop field. For this purpose, it comprises, at the front of the frame 3, a transverse bucket 8 provided with a transverse blade 9 and containing a helical conveyor generally designated by the reference notation FIG. 1, 3, 4). The bucket 8 is fixed on a crosspiece 17 of a frame 18 which is articulated to the frame 3. When the pickup 1 is positioned on a horizontal surface, the crossbar 17 is horizontal and the axis of articulation of the frame 18 to the frame 3 is also horizontal. The helical conveyor 10 is formed of a pair of coaxial screws 11 and 12, juxtaposed and not inverted. The two screws 11 and 12 are mounted on a common shaft 13 disposed in the bucket 8, transversely to the normal direction X of the advance of the collector 1. The shaft 13 is coupled to a hydraulic motor (not shown) whose operation is ensured from the diesel engine 6. In its central part, the bucket 8 is pierced with an opening which opens above a conveyor 14 (FIG 4). The conveyor 14 comprises a rubber conveyor belt, arranged axially on the frame 3. It is inclined so as to rise from the front to the rear to pass under the cockpit 7, overhang the engine 6 and open above of the bucket 2.
Pendant le fonctionnement de la machine représentée aux figures, le ramasseur 1 progresse sur le champ de culture dans le sens de la flèche X en tractant la benne 2. La lame 9 glisse sur le sol et transfère l'amendement agricole dans le godet 8 où il est prélevé par le transporteur hélicoïdal 10. Celui-ci tourne dans un sens adéquat pour que les vis 11 et 12 déplacent l'amendement agricole vers le centre du godet 8, où il tombe sur le convoyeur 14 qui le déverse dans la benne 2. During the operation of the machine shown in the figures, the collector 1 progresses on the field of culture in the direction of the arrow X by pulling the bucket 2. The blade 9 slides on the ground and transfers the agricultural amendment in the bucket 8 where it is removed by the helical conveyor 10. This rotates in a suitable direction so that the screws 11 and 12 move the amendment agricultural to the center of the bucket 8, where it falls on the conveyor 14 which dumps it in the bucket 2.
Selon une première caractéristique conforme à l'invention, les vis 11 et 12 sont formées d'une tôle spiralée en acier dont la zone périphérique 15 est pliée et dirigée vers le milieu 16 du transporteur hélicoïdal (FIG. 1, 5, 7) . La hauteur de la zone périphérique pliée 15 est approximativement égale à 20 % de la hauteur de la zone non pliée (ou flanc) 26. L'angle Z entre la zone pliée 15 et le flanc 26 de la vis est approximativement égal à 135 degrés. La zone périphérique 15 de la tôle spiralée est avantageusement effilée de manière que son bord soit tranchant .  According to a first characteristic according to the invention, the screws 11 and 12 are formed of a spiral steel sheet whose peripheral zone 15 is folded and directed towards the middle 16 of the helical conveyor (FIG 1, 5, 7). The height of the folded peripheral zone 15 is approximately equal to 20% of the height of the unfolded zone (or flank) 26. The angle Z between the folded zone 15 and the flank 26 of the screw is approximately equal to 135 degrees . The peripheral zone 15 of the spiral sheet is advantageously tapered so that its edge is sharp.
Selon une seconde caractéristique conforme à l'invention, la fixation du godet 8 à la traverse 17 comprend une articulation 19, dont l'axe est parallèle au sens de progression normal X du ramasseur 1. Grâce à cette conception constructive originale, la lame 9 du godet 8 s'adapte aux dénivellations et accidents de terrain du champ de culture, par rotation du godet 8 sur son articulation 19 et par basculement du cadre 18 sur ses articulations au cadre 3.  According to a second characteristic according to the invention, the fixing of the bucket 8 to the cross member 17 comprises a hinge 19, whose axis is parallel to the direction of normal progression X of the pickup 1. With this original constructive design, the blade 9 of the bucket 8 adapts to the unevenness and field accidents of the field of culture, by rotation of the bucket 8 on its articulation 19 and by tilting of the frame 18 on its joints to the frame 3.
Selon une troisième caractéristique conforme à l'invention, la liaison du ramasseur 1 à la benne 2 est réalisée au moyen d'un attelage articulé. Cet attelage articulé est désigné dans son ensemble par la notation de référence 36 aux figures 2 et 3. Il comprend une bague 21 montée à rotation dans une couronne 20 qui est fixée au châssis 3 (figure 6) . La bague 21 est enserrée et immobilisée dans une fourche 27 formant une extrémité d'un bras 28 (figure 8) . L'autre extrémité du bras 28 porte un tourillon 29 qui est engagé dans un manchon 30 situé à l'extrémité d'une barre 31 (figures 8, 9 et 12) . Une plaque 37 (figure 9) fixée au tourillon 29 retient celui-ci dans le manchon 30, tout en lui permettant de tourner dans le manchon. À son autre extrémité, la barre 31 est munie d'une griffe 35 (figures 9 et 12} dont la fonction sera explicitée plus loin. According to a third characteristic according to the invention, the connection of the pickup 1 to the bucket 2 is achieved by means of an articulated hitch. This articulated hitch is designated as a whole by the reference numeral 36 in FIGS. 2 and 3. It comprises a ring 21 rotatably mounted in a ring 20 which is fixed to the frame 3 (FIG. 6). The ring 21 is clamped and immobilized in a fork 27 forming an end of an arm 28 (Figure 8). The other end of the arm 28 carries a pin 29 which is engaged in a sleeve 30 located at the end of a bar 31 (Figures 8, 9 and 12). A plate 37 (Figure 9) attached to the pin 29 retains it in the sleeve 30, while allowing it to rotate in the sleeve. At its other end, the bar 31 is provided with a claw 35 (Figures 9 and 12) whose function will be explained later.
Une poutrelle 32 en U inversé est fixée axialement sous la benne 2. Un pivot 33 est fixé au fond de la poutrelle 32. La fonction du pivot 33 sera explicitée plus loin.  An inverted U-beam 32 is fixed axially under the skip 2. A pivot 33 is fixed to the bottom of the beam 32. The function of the pivot 33 will be explained later.
Lorsque la benne 2 est détachée du ramasseur 1, celui-ci repose en équilibre sur son train de roues 2 et la paire de roues escamotables 34. Pour atteler le ramasseur 1 à benne 2 , on les rapproche 1 ' un de 1 ' autre pour positionner la partie arrière de la barre 31 sous la partie avant de la poutrelle 32. On manœuvre ensuite les vérins des roues escamotables 34 de sorte que la partie arrière de la barre 31 se soulève, pénètre dans la poutrelle 32 et soulève celle-ci et la benne. On déplace ensuite le ramasseur 1 pour le rapprocher de la benne 2 de sorte que la barre 31 glisse dans la poutrelle 32, jusqu'à ce que le pivot 33 s'emboîte dans la griffe 35, comme schématisé à la figure 10. On relâche ensuite les vérins des roues escamotables 34, de sorte que l'ensemble du ramasseur 1 et de la benne 2 redescend, la griffe 35 pivotant sur le pivot 33 jusqu'à ce que la poutrelle 32 chevauche et s'appuie sur la barre 31, provoquant automatiquement le verrouillage d'un cliquet (non représenté) . Le verrouillage du cliquet réalise la solidarisation de la poutrelle 32 à la barre 31 et, par voie de conséquence, celle de l'attelage. Le cliquet peut être déverrouillé pour désolidariser la barre 31 de la poutrelle 32 et séparer le ramasseur 1 de la benne 2. When the bucket 2 is detached from the collector 1, the latter rests in equilibrium on its wheelset 2 and the pair of retractable wheels 34. To couple the collector 1 with bucket 2, they are brought together 1 to the other for position the rear part of the bar 31 under the front part of the beam 32. The cylinders of the retractable wheels 34 are then maneuvered so that the rear part of the bar 31 rises, enters the beam 32 and raises it and the bucket. The collector 1 is then moved to bring it closer to the bucket 2 so that the bar 31 slides in the beam 32, until the pivot 33 fits into the claw 35, as shown in FIG. then the cylinders of the retractable wheels 34, so that the assembly of the collector 1 and the bucket 2 descends, the claw 35 pivoting on the pivot 33 until the beam 32 overlaps and rests on the bar 31, automatically causing the locking of a pawl (not shown). The locking of the pawl secures the beam 32 to the bar 31 and, consequently, that of the hitch. The ratchet can to be unlocked to separate the bar 31 of the beam 32 and separate the pickup 1 of the bucket 2.
La barre 31 et la poutrelle 32 peuvent être munies respectivement des éléments d'accouplement de raccords de jonction hydraulique, pneumatique et/ou électrique, pour relier des organes fonctionnels de la benne 2 à une source d'énergie présente sur le ramasseur 1. Comme exemples d'organes fonctionnels présents sur la benne 2, on cite des vérins hydrauliques et/ou des moteurs électriques ou pneumatiques pour basculer la benne 2 sur son châssis, pour ouvrir ou fermer des portes 38 situées à l'arrière de la benne 2 (figure 12) ou encore pour déverrouiller le cliquet cité plus haut (liste  The bar 31 and the beam 32 may be provided respectively with coupling elements of hydraulic, pneumatic and / or electrical junction connectors for connecting functional members of the skip 2 to a source of energy present on the collector 1. examples of functional organs present on the bucket 2 are cited hydraulic cylinders and / or electric or pneumatic motors to tilt the bucket 2 on its chassis, to open or close doors 38 located at the rear of the bucket 2 ( figure 12) or to unlock the ratchet mentioned above (list
exemplative, non exhaustive. En variante, le illustrative, not exhaustive. Alternatively, the
déverrouillage du cliquet précité peut être effectué à la main par un opérateur. unlocking of the aforementioned ratchet can be performed by hand by an operator.
L'attelage qui vient d'être décrit, liant le ramasseur 1 à la benne 2, associe deux axes de rotation perpendiculaires. Un premier axe est l'axe de rotation de la bague 21 dans la couronne 20. Cet axe est  The coupling that has just been described, linking the pickup 1 to the bucket 2, combines two perpendicular axes of rotation. A first axis is the axis of rotation of the ring 21 in the ring 20. This axis is
perpendiculaire au plan du châssis 3 du ramasseur 1. Le second axe est l'axe de rotation du tourillon 29 dans son manchon 30 et cet axe coïncide avec l'axe longitudinal ou de progression de la benne 2. perpendicular to the plane of the frame 3 of the pickup 1. The second axis is the axis of rotation of the pin 29 in its sleeve 30 and this axis coincides with the longitudinal axis or progression of the bucket 2.
Selon une quatrième caractéristique conforme à l'invention, une paire de vérins 25 relient la fourche 27 au châssis 3 (FIG. 2, 3) . Ces vérins 25 sont couplés à une pompe (non représentée) qui, entraînée par le moteur Diesel 6 et actionnée au départ de la cabine de pilotage 7, permet de diriger la progression du ramasseur 1 sur le champ de culture. Selon une cinquième caractéristique conforme à l'invention, la cabine 7 est déplaçable latéralement entre une position de travail et une position de According to a fourth characteristic according to the invention, a pair of jacks 25 connect the fork 27 to the frame 3 (FIG 2, 3). These cylinders 25 are coupled to a pump (not shown) which, driven by the diesel engine 6 and actuated from the cockpit 7, allows to direct the progress of the pickup 1 on the culture field. According to a fifth characteristic according to the invention, the cabin 7 is laterally displaceable between a working position and a position of
maintenance. En position de travail, la cabine 7 occupe une position axiale sur le châssis 3, comme représenté à la figure 1. En position de maintenance, la cabine est écartée latéralement de sa position axiale pour permettre d'avoir accès au convoyeur 14, pour le nettoyer, le réparer ou le remplacer. En donnant facilement accès au convoyeur 14, cette cinquième caractéristique permet de convertir la machine selon l'invention en une machine polyvalente. Elle permet en effet de remplacer le godet 8 et la vis hélicoïdale 10 par un autre outil et de monter un convoyeur 14 spécialement adapté à cet outil . Des exemples d'outils comprennent un dispositif pour la récolte de racines pivotantes, de pommes de terre ou de céréales ou un dispositif pour l'épandage d'engrais solides, semi-solides ou liquides. Selon l'outil maintenance. In the working position, the cabin 7 occupies an axial position on the chassis 3, as shown in FIG. 1. In the maintenance position, the cabin is spaced laterally from its axial position to allow access to the conveyor 14, for the clean, repair or replace. By giving easy access to the conveyor 14, this fifth characteristic makes it possible to convert the machine according to the invention into a multi-purpose machine. It makes it possible to replace the bucket 8 and the helical screw 10 by another tool and to mount a conveyor 14 specially adapted to this tool. Examples of tools include a device for harvesting rotating roots, potatoes or cereals or a device for spreading solid, semi-solid or liquid fertilizers. According to the tool
sélectionné, le convoyeur 14 peut être sélectionné parmi les courroies transporteuses, les convoyeurs à augets et les convoyeurs à vis d'Archimède (liste exemplative, non exhaustive) . selected, the conveyor 14 can be selected from conveyor belts, bucket conveyors and Archimedean screw conveyors (illustrative list, not exhaustive).

Claims

REVENDICATIONS 1. Machine agricole pour le ramassage et la manutention d'un amendement agricole solide ou semi-solide, comprenant un godet qui est fixé à l'avant d'un châssis automobile et qui contient un transporteur hélicoïdal comprenant deux vis coaxiales juxtaposées à pas inversés, caractérisée en ce que la zone périphérique (15) des vis coaxiales (11, 12) est pliée vers la zone de jonction (16) des deux vis (11, 12) . 1. Agricultural machine for the collection and handling of a solid or semi-solid agricultural amendment, comprising a bucket which is attached to the front of a car chassis and which contains a helical conveyor comprising two coaxial screws juxtaposed step inverted, characterized in that the peripheral zone (15) of the coaxial screws (11, 12) is folded towards the junction zone (16) of the two screws (11, 12).
2. Machine selon la revendication 1, caractérisée en ce que la zone périphérique pliée (15) des vis coaxiales (11, 12) forme un angle (Z) obtus avec le flanc (26) des hélicoïdes desdites vis. 2. Machine according to claim 1, characterized in that the folded peripheral zone (15) of the coaxial screws (11, 12) forms an angle (Z) obtuse with the side (26) of the helicoids of said screws.
3. Machine selon la revendication 2, caractérisée en ce que l'angle (Z) est compris entre 120 et 150 degrés. 3. Machine according to claim 2, characterized in that the angle (Z) is between 120 and 150 degrees.
4. Machine selon l'une quelconque des revendications 1 a4. Machine according to any one of claims 1 to
3, caractérisée en ce que la hauteur de la zone périphérique (15) est de 3 à 25 % de la hauteur du flanc (26) des vis coaxiales {11, 12) . 3, characterized in that the height of the peripheral zone (15) is from 3 to 25% of the height of the sidewall (26) of the coaxial screws (11, 12).
5. Machine selon l'une quelconque des revendications 1 à5. Machine according to any one of claims 1 to
4, caractérisée en ce que la zone périphérique (15) est effilée . 4, characterized in that the peripheral zone (15) is tapered.
6. Machine selon l'une quelconque des revendications 1 à6. Machine according to any one of claims 1 to
5, caractérisée en ce qu'un moyen de fixation du godet (8) au châssis (3) comprend une articulation (19) autour d'un axe parallèle au sens de déplacement (X) du châssis (3) . 5, characterized in that a means for fixing the bucket (8) to the frame (3) comprises a hinge (19) about an axis parallel to the direction of movement (X) of the frame (3).
7. Machine selon la revendication 6 , caractérisée en ce que l'articulation (19) susdite est disposée sur une traverse (17) d'un cadre (18) articulé au châssis (3) . 7. Machine according to claim 6, characterized in that the articulation (19) aforesaid is disposed on a cross member (17) of a frame (18) hinged to the frame (3).
8. Machine selon l'une quelconque des revendications 1 à 7, caractérisée en ce qu'un attelage (36) relie le châssis (3) à une benne (2) disposée derrière le châssis et en ce qu'un convoyeur (14) est disposé longitudinalement sur le châssis, entre le godet (8) et la benne . 8. Machine according to any one of claims 1 to 7, characterized in that a hitch (36) connects the frame (3) to a bucket (2) disposed behind the frame and that a conveyor (14) is arranged longitudinally on the frame, between the bucket (8) and the bucket.
9. Machine selon la revendication 8, caractérisée en ce que le châssis (3) porte un moteur (6) et une cabine de pilotage (7) de la machine, située devant le moteur et en ce que le convoyeur (14) monte de l'avant vers l'arrière, passe sous la cabine, surplombe le moteur et débouche au-dessus de la benne (2) .  9. Machine according to claim 8, characterized in that the frame (3) carries a motor (6) and a cockpit (7) of the machine, located in front of the engine and in that the conveyor (14) rises from the front to the back, passes under the cabin, overhangs the engine and opens above the bucket (2).
10. Machine selon la revendication 9, caractérisée en ce que la cabine (7) est déplaçable latéralement sur le châssis (3) depuis une position de travail dans laquelle elle surplombe le convoyeur (14), jusqu'à une position de maintenance dans laquelle elle est écartée du convoyeur.  10. Machine according to claim 9, characterized in that the cab (7) is laterally movable on the frame (3) from a working position in which it overhangs the conveyor (14) to a maintenance position in which it is removed from the conveyor.
11. Machine selon la revendication 10, caractérisée en ce que le convoyeur (14) est amovible.  11. Machine according to claim 10, characterized in that the conveyor (14) is removable.
12. Machine selon l'une quelconque des revendications 8 à 11, caractérisée en ce que le convoyeur (14) comprend une courroie transporteuse .  12. Machine according to any one of claims 8 to 11, characterized in that the conveyor (14) comprises a conveyor belt.
13. Machine selon l'une quelconque des revendications 1 à 12, caractérisée en ce que le châssis (3) est monté sur un train unique de roues (4) et est relié à une remorque (2) au moyen d'un attelage (36) qui est articulé autour de deux axes perpendiculaires, dont l'un coïncide avec l'axe longitudinal de la remorque (2), l'autre axe étant perpendiculaire au plan du châssis (3) . 13. Machine according to any one of claims 1 to 12, characterized in that the frame (3) is mounted on a single set of wheels (4) and is connected to a trailer (2) by means of a hitch ( 36) which is articulated about two perpendicular axes, one of which coincides with the longitudinal axis of the trailer (2), the other axis being perpendicular to the plane of the frame (3).
14. Machine selon la revendication 13 , caractérisée en ce que l'attelage (36) comprend un bras (28) portant un tourillon (29) qui est monté à rotation dans un manchon (30) fixé à la remorque (2) , le bras (28) étant fixé à un plateau (21) monté à rotation sur le châssis (3) de l'engin automoteur (1). 14. Machine according to claim 13, characterized in that the hitch (36) comprises an arm (28) carrying a pin (29) which is rotatably mounted in a sleeve (30) fixed to the trailer (2), the arm (28) being fixed to a plate (21) rotatably mounted on the frame (3) of the self-propelled machine (1).
15. Machine selon la revendication 14, caractérisée en ce que le plateau comprend une bague (21) qui est montée à rotation dans une couronne (20) solidaire du châssis (3) et en ce que le bras (28) comprend une fourche (27) qui entoure la bague (21) et est fixée à celle-ci.  15. Machine according to claim 14, characterized in that the plate comprises a ring (21) which is rotatably mounted in a ring (20) integral with the frame (3) and in that the arm (28) comprises a fork ( 27) which surrounds the ring (21) and is attached thereto.
16. Machine selon la revendication 15, caractérisée en ce qu'une paire de vérins (25) relient le châssis (3) à la fourche (27) .  16. Machine according to claim 15, characterized in that a pair of jacks (25) connect the frame (3) to the fork (27).
17. Machine selon l'une quelconque des revendications 14 à 16, caractérisée en ce qu'un moyen de fixation du manchon (30) à la remorque (2) comprend une poutrelle en U inversé (32) , fixée axialement sous la remorque, une barre (31) , fixée au manchon (30) et emboîtée dans la poutrelle (32) et un organe d'accouplement de la barre (31) à la poutrelle (32) . 17. Machine according to any one of claims 14 to 16, characterized in that a means for fixing the sleeve (30) to the trailer (2) comprises an inverted U-shaped beam (32) fixed axially under the trailer, a bar (31), fixed to the sleeve (30) and nested in the beam (32) and a coupling member of the bar (31) to the beam (32).
18. Machine selon la revendication 17, caractérisée en ce que l'organe d'accouplement comprend, d'une part, un pivot (33) solidaire de la poutrelle (32) et emboîté dans une griffe (35) solidaire de la barre (31) et, d'autre part, un cliquet escamotable de jonction de la barre (31) à la poutrelle (32) .  18. Machine according to claim 17, characterized in that the coupling member comprises, on the one hand, a pivot (33) integral with the beam (32) and fitted into a claw (35) integral with the bar ( 31) and, on the other hand, a retractable pawl connecting the bar (31) to the beam (32).
19. Machine selon la revendication 18, caractérisée en ce qu'elle comprend une roue escamotable (34) conçue pour supporter l'engin automoteur (1), en coopération avec son train de roues (4) , lorsque ledit engin est désolidarisé de la remorque (2) . 19. Machine according to claim 18, characterized in that it comprises a retractable wheel (34) designed to support the self-propelled machine (1), in cooperation with its wheel train (4), when said machine is detached from the trailer (2).
20. Machine selon la revendication 19, caractérisée en ce qu'un vérin relie la roue escamotable (34) au châssis 3) de l'engin automoteur (1) et en ce que les positions respectives du train de roues (4) , de la roue 20. Machine according to claim 19, characterized in that a jack connects the retractable wheel (34) to the frame 3) of the self-propelled machine (1) and in that the respective positions of the wheel train (4), wheel
escamotable (34) , du pivot (33) et de la griffe (35) sont agencées de telle sorte que, par une manœuvre du vérin de la roue escamotable (34) , le cliquet précité étant escamoté, l'engin automoteur (1) bascule sur son train de roues (4) et la remorque (2) bascule en sens inverse par rotation de la griffe (35) sur le pivot retractable (34), the pivot (33) and the claw (35) are arranged such that, by a maneuver of the cylinder of the retractable wheel (34), the aforementioned pawl being retracted, the self-propelled machine (1) tilts on its wheel train (4) and the trailer (2) reverses by rotating the claw (35) on the pivot
(33) . (33).
21. Utilisation de la machine selon l'une quelconque des revendications 1 à 20, pour le ramassage, sur un champ agricole, d'amendements agricoles sélectionnés parmi le fumier, le compost, les engrais verts, les boues fertiles et les écumes résiduaires de sucreries.  21. Use of the machine according to any one of claims 1 to 20, for the collection, on a farm field, of agricultural amendments selected from manure, compost, green manure, fertile sludge and scum residuals. sweets.
22. Transporteur hélicoïdal pour machines servant au  22. Helical conveyor for machines used in
ramassage de matières agricoles sur des surfaces agricoles, ledit transporteur hélicoïdal (10)  collection of agricultural materials on agricultural surfaces, said helical conveyor (10)
comprenant une paire de vis coaxiales juxtaposées à pas inversés, caractérisé en ce que la zone périphérique (15) des vis coaxiales (11, 12) est pliée vers la zone de jonction (16) des deux vis (11, 12) .  comprising a pair of coaxial screws juxtaposed with reverse pitch, characterized in that the peripheral zone (15) of the coaxial screws (11, 12) is folded towards the junction zone (16) of the two screws (11, 12).
23. Transporteur selon la revendication 22, caractérisé en ce que la zone périphérique (15) des vis coaxiales Conveyor according to claim 22, characterized in that the peripheral zone (15) of the coaxial screws
(11, 12) forme un angle obtus (Z) avec le flanc (26) des hélicoïdes desdites vis. (11, 12) forms an obtuse angle (Z) with the flank (26) of the helicoids of said screws.
24. Transporteur selon la revendication 23, caractérisé en ce que l'angle (Z) est compris entre 120 et 150 degrés et en ce que la hauteur de la zone périphérique Conveyor according to Claim 23, characterized in that the angle (Z) is between 120 and 150 degrees and that the height of the peripheral zone
(15) est de 3 et 25 % de la hauteur du flanc (26) des vis coaxiales (11, 12) . (15) is 3 and 25% of the height of the sidewall (26) of the coaxial screws (11, 12).
25. Transporteur selon l'une quelconque des 25. Carrier according to any one of
revendications 22 à 24, caractérisé en que la zone périphérique (15) des vis coaxiales (11, 12) est effilée .  Claims 22 to 24, characterized in that the peripheral zone (15) of the coaxial screws (11, 12) is tapered.
PCT/BE2014/000001 2013-01-04 2014-01-03 Agricultural machine, use of said machine and screw conveyor intended for such a machine WO2014106288A1 (en)

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BE2013/0002 2013-01-04
BE201300002 2013-01-04

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB735141A (en) * 1952-05-23 1955-08-17 Athey Products Corp Improvements in or relating to a power operated conveyor-type loading machine
US5090187A (en) * 1990-02-27 1992-02-25 Mews Kenneth F Pick-up assembly
US5293730A (en) * 1993-04-12 1994-03-15 Ford New Holland, Inc. Auger finger control mechanism
EP2119341A2 (en) * 2008-05-14 2009-11-18 Maschinenfabrik Kemper GmbH & Co. KG Harvesting attachment with a crop pick-up and a screw conveyor
DE102011013243A1 (en) * 2011-03-07 2012-09-13 Alois Pöttinger Maschinenfabrik Gmbh Loading wagon harvester has retaining device comprising cross conveyors that are arranged at front end and back end of the retainer rotor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB735141A (en) * 1952-05-23 1955-08-17 Athey Products Corp Improvements in or relating to a power operated conveyor-type loading machine
US5090187A (en) * 1990-02-27 1992-02-25 Mews Kenneth F Pick-up assembly
US5293730A (en) * 1993-04-12 1994-03-15 Ford New Holland, Inc. Auger finger control mechanism
EP2119341A2 (en) * 2008-05-14 2009-11-18 Maschinenfabrik Kemper GmbH & Co. KG Harvesting attachment with a crop pick-up and a screw conveyor
DE102011013243A1 (en) * 2011-03-07 2012-09-13 Alois Pöttinger Maschinenfabrik Gmbh Loading wagon harvester has retaining device comprising cross conveyors that are arranged at front end and back end of the retainer rotor

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