FR2581286A1 - Improvements to devices for uprooting bulbous plants such as onions and beet in particular - Google Patents
Improvements to devices for uprooting bulbous plants such as onions and beet in particular Download PDFInfo
- Publication number
- FR2581286A1 FR2581286A1 FR8506726A FR8506726A FR2581286A1 FR 2581286 A1 FR2581286 A1 FR 2581286A1 FR 8506726 A FR8506726 A FR 8506726A FR 8506726 A FR8506726 A FR 8506726A FR 2581286 A1 FR2581286 A1 FR 2581286A1
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- FR
- France
- Prior art keywords
- uprooting
- disc
- onions
- devices
- driven
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D25/00—Lifters for beet or like crops
- A01D25/04—Machines with moving or rotating tools
- A01D25/042—Machines with moving or rotating tools with driven tools
- A01D25/044—Machines with moving or rotating tools with driven tools with driven rotating tools
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
Abstract
Description
Perfectionnements aux dispositifs d'trrachage de riantes
bulbeuses. telles notamment aue des oignons et des
betteraves.Improvements to laughing devices
bulbous. such as onions and
beets.
La présente invention concerne un perfectionnement aux dispositifs d'arrachage de plantes bulbeuses, telles notamment que des oignons et des betteraves. The present invention relates to an improvement to harvesting devices for bulbous plants, such as onions and beets in particular.
I1 est connu d'employer des arracheuses comportant à l'avant des moyens arracheurs qui creusent le sol en passant sous les bulbes1 les soulèvent et acheminent sur un convoyeur le flot de terre et de bulbes qui chemine ensuite sur un transporteur à grille qui réalise le tri entre la terre et les bulbes qui sont ensuite ou bien reprise par un autre transporteur ou bien posés à terre en un andain. I1 is known to use harvesters comprising at the front harvesting means which dig the soil by passing under the bulbs1 raise them and convey on a conveyor the flow of soil and bulbs which then travels on a grid conveyor which carries out the sorting between soil and bulbs which are then either taken up by another transporter or placed on the ground in a swath.
Les moyens d'arrachage connus sont ou bien des petits corps de labour, analogue à ces charrues avec soc et versoir ou bien des disques rotatifs qui sont placés obliquement et en travers de la direction d'avancement et qui sont mis en rotation par frottement contre le sol lorsque la machine avance. The known lifting means are either small plowing bodies, similar to these plows with ploughshare and mouldboard or else rotating discs which are placed obliquely and across the direction of advance and which are rotated by friction against the ground as the machine advances.
Ces disques arracheurs présentent un double inconvénient. Lorsque la terre est humide, ils provoquent un compactage de la terre qui, sur le trieur à grille s'émiette mal de sorte qu'elle forme des boulettes et se détache mal des bulbes. Lorsque la terre est sèche, les disques s'enfoncent mal dans le sol et au lieu de passer sous les bulbes viennent souvent les heurter et donc les endommager irrémédiablement. These lifting discs have a double disadvantage. When the soil is wet, they cause compaction of the soil which, on the grid sorter, does not crumble well so that it forms pellets and does not detach from the bulbs. When the soil is dry, the discs sink poorly into the ground and instead of passing under the bulbs often hit them and therefore irreparably damage them.
La présente invention a pour objet de supprimer ces inconvénients en entraînant les disques en rotation assez rapide, par un moyen moteur qui peut être un moteur hydraulique, électrique ou un arbre moteur entraîné par la prise de forcie du tracteur par une transmission à cardans. The object of the present invention is to eliminate these drawbacks by driving the discs in fairly rapid rotation, by a motor means which can be a hydraulic, electric motor or a drive shaft driven by the tractor power take-off by a cardan transmission.
A titre d'exemple non limitatif, on a représenté au dessin annexé une vue schématique d'un mode de réalisation de l'invention. By way of nonlimiting example, there is shown in the accompanying drawing a schematic view of an embodiment of the invention.
Cette figure est une vue partielle d'une machine à arracher des oignons et ne représente qu'un disque d'arrachage. This figure is a partial view of a machine for removing onions and only represents a lifting disc.
Le châssis de la machine (non représenté parole que connu) comporte un support vertical 1 sensiblement vertical, muni à sa partie inférieure d'un palier 2 dont l'axe longitudinal 3 est oblique. Ce palier 2 porte l'arbre d'un disque d'arrachage 4 en lui-même connu. The chassis of the machine (not shown as known) has a substantially vertical vertical support 1, provided at its lower part with a bearing 2 whose longitudinal axis 3 is oblique. This bearing 2 carries the shaft of a lifting disc 4 which is known per se.
Comme cela est representé sur la figure, I'arbre du disque 4 est entraîné, par un moteur hydraulique 5, a une vitesse nettement superieure à celle qu'il aurait s'il était simplement entraîné par friction sur le sol, comme dans les dispositifs connus. As shown in the figure, the disc shaft 4 is driven, by a hydraulic motor 5, at a speed clearly higher than that which it would have if it were simply driven by friction on the ground, as in the devices known.
Le disque 4 passe au-dessous de l'oignon 6 et découpe, stns la tasser une tranche de terre 7. The disc 4 passes below the onion 6 and cuts, then compacts a slice of soil 7.
Si l'on emploie un disque d'arrachage classique, qui n'est pas entraîné en rotation par un moyen moteur agissant sur son arbre placé dans le palier 2, il faut pour que le disque tourne lui donner une double oblicité : il faut qu'il soit oblique par rapport à l'hoeizontale (comme le disque 4); mais il faut en plus qu'il soit oblique par rapport à la direction d'avanoement pour pouvoir être entraîné en rotation. If a conventional lifting disc is used, which is not driven in rotation by a motor means acting on its shaft placed in the bearing 2, it is necessary for the disc to rotate to give it a double obliquity: it is necessary that 'it is oblique to the horizontal (like disc 4); but it must also be oblique to the direction of avanoement to be able to be driven in rotation.
Cette deuxième oblicité est supprimée par l'emploi d'un moyen mécanique d'entraînement tel que le moteur hydraulique 5. This second obliquity is eliminated by the use of a mechanical drive means such as the hydraulic motor 5.
Il en résulte plusieurs avantages. Tout d'abord quand la terre est humide, la position en travers de la direction d'avancement des disques connus provoque un effet de poussée vers l'avant de la terre découpée qui est ainsi tassée ; ce tassement fait que la terre adhère fortement à l'oignon et n'en est pas (ou mal) détachée sur la grille; ce tassement fait aussi que la terre s'émiette mal, qu'elle passe mal à travers les barreaux de la grille et que, plus ou moins rapidement, la machine est complètement bourrée de tette et ne peut plus fonctionner. Ensuite, lorsque la terre est trop sèche, les disques arracheurs classiques s'enfoncent mal dans le sol et l'arrachage est irrégulier ; il arrive même que les disques ne passent pas suffisamment profond sous les oignons et les endommagent.Par contre, le disque tournant selon la présente invention provoque un véritable effet de tranchage de la terre et la bande de tette 7 est toujours nettement découpée quel que soit l'état de la terre. This has several advantages. First of all when the earth is wet, the position across the direction of advancement of the known discs causes a pushing effect on the cut earth which is thus compacted; this compaction causes the soil to adhere strongly to the onion and is not (or badly) detached from it on the grid; this compaction also causes the earth to crumble badly, to pass poorly through the bars of the grid and, more or less quickly, the machine is completely stuffed with tette and can no longer function. Then, when the soil is too dry, the conventional lifting discs do not sink well into the ground and the uprooting is irregular; it even happens that the discs do not pass deep enough under the onions and damage them. On the other hand, the rotating disc according to the present invention causes a real slicing effect of the ground and the tette strip 7 is always clearly cut whatever the state of the earth.
On obtient ainsi grâce à cette disposition une amélioration considérable de la qualité et de la rapidité du travail réalisé. This arrangement thus provides a considerable improvement in the quality and speed of the work carried out.
De préférenoe, les disques tels que le disque 4 sont entraînés à une vitesse de l'ordre de 50 tours par minute. Preferably, the discs such as the disc 4 are driven at a speed of the order of 50 revolutions per minute.
Dans l'exemple représenté, le disque 4 est entraîné par un moteur hydraulique, mais il peut être entraîné par un moteur électrique ou encore au moyen d'une transmission à cardans. In the example shown, the disc 4 is driven by a hydraulic motor, but it can be driven by an electric motor or even by means of a cardan transmission.
De même pour améliorer l'effet de tranchage, on peut disposer des dentures de forme appropriée sur la périphérie du disque 4. Similarly, to improve the slicing effect, it is possible to have teeth of suitable shape on the periphery of the disc 4.
Dans l'exemple représenté, la machine est une arracheuse d'oignons, mais il est bien évident que l'invention n'est pas limitée étroitement i cette application et peut être employée pour l'arrachage de betteraves, navets, pommes de terre ou autres. In the example shown, the machine is an onion harvester, but it is obvious that the invention is not strictly limited to this application and can be used for harvesting beets, turnips, potatoes or other.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8506726A FR2581286A1 (en) | 1985-05-03 | 1985-05-03 | Improvements to devices for uprooting bulbous plants such as onions and beet in particular |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8506726A FR2581286A1 (en) | 1985-05-03 | 1985-05-03 | Improvements to devices for uprooting bulbous plants such as onions and beet in particular |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2581286A1 true FR2581286A1 (en) | 1986-11-07 |
Family
ID=9318919
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8506726A Pending FR2581286A1 (en) | 1985-05-03 | 1985-05-03 | Improvements to devices for uprooting bulbous plants such as onions and beet in particular |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2581286A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0340858A1 (en) * | 1988-05-02 | 1989-11-08 | Marinus Cornelis Wielaard | More rows beet harvester |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2588764A (en) * | 1947-12-11 | 1952-03-11 | Ralph R Richmond | Vegetable harvester |
GB848939A (en) * | 1955-11-07 | 1960-09-21 | Lely Nv C Van Der | Improvements in or relating to an implement for harvesting beets or the like tap-root vegetables |
GB1601478A (en) * | 1978-05-30 | 1981-10-28 | Nat Res Dev | Root harvesters |
-
1985
- 1985-05-03 FR FR8506726A patent/FR2581286A1/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2588764A (en) * | 1947-12-11 | 1952-03-11 | Ralph R Richmond | Vegetable harvester |
GB848939A (en) * | 1955-11-07 | 1960-09-21 | Lely Nv C Van Der | Improvements in or relating to an implement for harvesting beets or the like tap-root vegetables |
GB1601478A (en) * | 1978-05-30 | 1981-10-28 | Nat Res Dev | Root harvesters |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0340858A1 (en) * | 1988-05-02 | 1989-11-08 | Marinus Cornelis Wielaard | More rows beet harvester |
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