WO2008000339A1 - Dispositif permettant d'écarter le surplus de graines - Google Patents

Dispositif permettant d'écarter le surplus de graines Download PDF

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Publication number
WO2008000339A1
WO2008000339A1 PCT/EP2007/005040 EP2007005040W WO2008000339A1 WO 2008000339 A1 WO2008000339 A1 WO 2008000339A1 EP 2007005040 W EP2007005040 W EP 2007005040W WO 2008000339 A1 WO2008000339 A1 WO 2008000339A1
Authority
WO
WIPO (PCT)
Prior art keywords
scraper
seeds
separating
openings
separation
Prior art date
Application number
PCT/EP2007/005040
Other languages
German (de)
English (en)
Inventor
Bernd Scheufler
Original Assignee
Amazonen-Werke H. Dreyer Gmbh & Co. Kg
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 Amazonen-Werke H. Dreyer Gmbh & Co. Kg filed Critical Amazonen-Werke H. Dreyer Gmbh & Co. Kg
Publication of WO2008000339A1 publication Critical patent/WO2008000339A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C7/00—Sowing
    • A01C7/04—Single-grain seeders with or without suction devices
    • A01C7/042—Single-grain seeders with or without suction devices using pneumatic means
    • A01C7/044—Pneumatic seed wheels

Definitions

  • the invention relates to a device for stripping excess seeds according to the preamble of claim 1.
  • Such a device has become known for example from DE 69 312 431 T2.
  • This device has a separating structure which has a separating opening acted upon by a pressure difference. At this separation openings store when performing the
  • Drill seeds with the seed holes through a seed stock Between the attachment area of the seed grains at the separating openings and the transfer point of the seed grains to discharge lines, scraper elements for stripping off the superfluous seed particles adhering to the singling openings are arranged. When falling back of stripped from the wipers excess seeds they fall back on the singulation of the drum in the seed stock. Here, at least some of the stripped seeds meet the adhering to the separation openings seeds when falling back, so that unintentionally seeds are detached from the separation openings. This has defects. On the other hand, it happens that due to the rotation of the singling drum the stripped seeds due to the friction between
  • the invention has for its object to ensure that the stripped seeds when falling back into the reservoir which adheres to the Vereir.zelungsoff ⁇ ungen not affected if possible and falls back in the desired manner n the Saatgu ⁇ vorrat the V ⁇ rracsbehalcers back.
  • This object is achieved by the characterizing features of claim 1.
  • the stripped seeds are pushed by the scrapers on the baffles. Over the guide surfaces, the seeds stripped off by the scrapers slip freely in the direction of the seed stock and fall back into them.
  • the guide surface has an area rising from the direction of the singling openings.
  • a kind of gutter is formed by the rising surface of the guide surface through which the seeds can fall back.
  • the guide surface ensure an undisturbed falling back of the seeds in the seed stock, it is provided that the guide surface is designed such that it removes the stripped seeds from the at the
  • the guide surface can be adapted in an advantageous manner to the contour surface of the separating member, it is provided that the guide surface consists of an elastic material.
  • a simple and advantageous arrangement of the guide surface is achieved in that the guide surfaces is arranged on the holder of the scraper on the side facing away from the stripping scraper side of the holder. Further details of the invention can be taken from the example description and the drawings. Show here
  • FIG. 3 shows the singling drum in the view according to FIG. 2 but in perspective view, FIG.
  • FIG. 7 shows the singling drum in a perspective view as in FIG. 4.
  • the separating device formed as a separating drum 1 is rotatably mounted in the housing 2 and driven in rotation in the direction of the arrow 3.
  • the separating drum 1 is a reservoir 4 and an air pressure generating device, not shown, for example, associated with a blower.
  • the separating openings 5 are arranged in a plurality of circumferential, circularly arranged rows, wherein the separating openings 5 via the pressure generating device be subjected to a pressure difference, so that the seeds located in the seed stock 6 of the reservoir 4 can accumulate due to the pressure difference at the separation openings 5.
  • a negative pressure or on the outside of the drum an overpressure are generated, so that attach the seeds on the outside of the drum 1 to the separation openings 4 due to the pressure difference generated.
  • the scraper elements 8 having several scraper elements 7 is arranged. Each row of separating openings 5 is assigned a scraper element 7.
  • the scraper elements 7 are made of an elastic material at least in the region 8 resting against the drum 1. The at least partially made of an elastic material in the area 8 existing
  • Scraper element 7 is formed on the drum or disc contour of the drum 1 flexibly adapting. Due to the inherent elasticity of the scraper element 7 this spring-loaded against the drum 1 is arranged adjacent. To achieve an exact alignment of the
  • Scraper element 7 to ensure the circularly arranged separating openings 5 a Erasmus9 of separating openings 5, the scraping region forming and consisting of an elastic material segment 10 of the scraper element 7 is arranged on a holder 11 consisting of a stiffer or stronger material. These two areas 10 and 11 may also be formed in one piece or of two sections exist, which are connected to each other for example by gluing or other fasteners.
  • the individual scraper elements 7 are arranged on a common holder 12 and can be adjusted together with respect to the separating openings 5. Here, the adjustment takes place so that too much at each separation opening 5 deposited seeds are stripped so that Nachpassieren the respective scraper element 5 at the respective separation opening 5 a row only one seed is attached.
  • the wiper element 7 in its wiper area 10 consists of an elastic and resilient material.
  • the operation of the scraper element 5 is the following:
  • the drum 1 rotates in the direction of arrow 3. If the separating opening 5, which are subjected to a pressure difference, are guided through the seed stock, 5 seed grains are deposited on the separating openings 5. If the seed grains attached to the singling openings 5 reach the segment 10 scraper element 7, the seed grains are triggered by the segment 10 and influenced so that the excess grains are stripped off or fall off the singling element 1, so that only one seed grain remains attached to each singling opening 5 ,
  • This guide surface 13 has a surface 13 rising from the direction of the separation opening 5. The surface is designed in such a way that the stripped seeds are kept away from the seeds adhering to the singulation openings 5 and the seed supply is returned.
  • the guide surface 13 is made of an elastic material so that it can adapt to the surface of the separating member 1.
  • the guide surfaces 13 are arranged on the holder 11 of the scraper on which the stripping region 10 of the scraper 7 side facing away from the holder 11.
  • the function of the guide surface 13 is as follows:
  • the superfluous seeds stripped off by the scrapers 7 receive a pulse during the stripping process, so that they are pushed or pushed in the direction of the guide surface 13. These stripped seeds are collected by the guide surface 13 and slip back over the guide surface 13 in the seed stock 6. As a result, the stripped seeds are collected by the guide surface 13 and kept away from the adhering to the separation openings 5 seeds and fed back into the seed stock 6.
  • the guide surface 13 is seen in the direction of rotation beyond the stripping region segment 10 of the scraper 7 also extended to ensure that the stripped seeds are kept safe from the seeds of the adjacent circumferential row 9 of the seed openings 5.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Pretreatment Of Seeds And Plants (AREA)

Abstract

Dispositif permettant d'écarter le surplus de graines des orifices de sélection (5) d'un semoir monograine, lesdits orifices étant situés dans une unité de sélection circulaire (1), telle qu'un tambour ou une courroie, et faisant l'objet d'une différence de pression. Les orifices de sélection (5) sont situés dans au moins une rangée circulaire. Un élément écarteur (7, 10), se trouvant au moins partiellement sur l'unité de sélection (1) dans la région des orifices de sélection (5), est associé à chaque rangée d'orifices de sélection (5). L'invention vise à s'assurer que la semence écartée en retombant dans le réservoir (4) n'entre pas en contact si possible avec les graines collant aux orifices de sélection (5) et retombe de préférence dans la réserve de semences du réservoir (4). À cet effet, une surface conductrice (13), s'étendant au moins approximativement sur la longueur de l'élément écarteur (7) et étant approximativement adjacente à l'unité de sélection (1), est placée sur le côté opposé à l'élément écarteur (7, 10) de l'orifice de sélection (5) disposé dans une rangée circulaire pour recueillir et évacuer les graines écartées par l'élément écarteur (7, 10).
PCT/EP2007/005040 2006-06-29 2007-06-06 Dispositif permettant d'écarter le surplus de graines WO2008000339A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610030045 DE102006030045A1 (de) 2006-06-29 2006-06-29 Vorrichtung zum Abstreifen von überschüssigen Samenkörnern
DE102006030045.9 2006-06-29

Publications (1)

Publication Number Publication Date
WO2008000339A1 true WO2008000339A1 (fr) 2008-01-03

Family

ID=38508903

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/005040 WO2008000339A1 (fr) 2006-06-29 2007-06-06 Dispositif permettant d'écarter le surplus de graines

Country Status (2)

Country Link
DE (1) DE102006030045A1 (fr)
WO (1) WO2008000339A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106879283A (zh) * 2017-02-17 2017-06-23 山东省农业机械科学研究院 气吸滚筒式排种器多级清种装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2826658A1 (de) * 1978-06-19 1980-01-03 Bernd Holdt Saemaschine fuer getreide und andere saatgutarten
FR2641441A1 (fr) * 1989-01-09 1990-07-13 Techno Vert Sarl Distributeur pneumatique pour semoirs multirangs
EP1704763A1 (fr) * 2005-03-23 2006-09-27 Amazonen-Werke H. Dreyer GmbH & Co. KG Dispositif pour écarter des graines exédentaires

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2826658A1 (de) * 1978-06-19 1980-01-03 Bernd Holdt Saemaschine fuer getreide und andere saatgutarten
FR2641441A1 (fr) * 1989-01-09 1990-07-13 Techno Vert Sarl Distributeur pneumatique pour semoirs multirangs
EP1704763A1 (fr) * 2005-03-23 2006-09-27 Amazonen-Werke H. Dreyer GmbH & Co. KG Dispositif pour écarter des graines exédentaires

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106879283A (zh) * 2017-02-17 2017-06-23 山东省农业机械科学研究院 气吸滚筒式排种器多级清种装置

Also Published As

Publication number Publication date
DE102006030045A1 (de) 2008-01-03

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