WO2005117564A1 - Unite de dispersion de semences - Google Patents

Unite de dispersion de semences Download PDF

Info

Publication number
WO2005117564A1
WO2005117564A1 PCT/AU2005/000792 AU2005000792W WO2005117564A1 WO 2005117564 A1 WO2005117564 A1 WO 2005117564A1 AU 2005000792 W AU2005000792 W AU 2005000792W WO 2005117564 A1 WO2005117564 A1 WO 2005117564A1
Authority
WO
WIPO (PCT)
Prior art keywords
body portion
dispersal unit
seed dispersal
discharge opening
lid
Prior art date
Application number
PCT/AU2005/000792
Other languages
English (en)
Inventor
Dave Scott
Original Assignee
D Scott Nominees Pty Ltd
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
Priority claimed from AU2004903021A external-priority patent/AU2004903021A0/en
Application filed by D Scott Nominees Pty Ltd filed Critical D Scott Nominees Pty Ltd
Priority to AU2005249146A priority Critical patent/AU2005249146A1/en
Publication of WO2005117564A1 publication Critical patent/WO2005117564A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C7/00—Sowing
    • A01C7/08—Broadcast seeders; Seeders depositing seeds in rows
    • A01C7/081—Seeders depositing seeds in rows using pneumatic means
    • A01C7/082—Ducts, distribution pipes or details thereof for pneumatic seeders

Definitions

  • the invention relates to the planting of seeds. More particularly, the invention relates to a seed dispersal unit.
  • a seed dispersal unit which includes: a body defining at least one inlet opening through which a mixture of air and seeds is received in the body, the body further defining an outlet opening through which seeds are ejected from the body and at least one discharge opening through which a portion of the air in the mixture is able to be discharged from the body; and a variable tuning mechanism in communication with the inlet opening for controlling the portion of the air discharged through the at least one discharge opening.
  • the tuning mechanism may comprise a lid releasably attached to the body, the lid defining the at least one discharge opening.
  • a size of the at least one discharge opening may be variable for varying the open area.
  • the lid may include a vortex finder arranged about the at least one discharge opening.
  • the vortex finder may be defined by a hollow tube extending into the body from the at least one discharge opening. At least one of a length and a bore of the tube may be variable for additional variability of the tuning mechanism.
  • the variability of the tube may be provided by means of a plurality of interchangeable lids, each lid having a tube having one of a length and a bore differing from any of the other lids.
  • the vortex finder may be eccentrically arranged relative to a central axis of its associated lid. Instead, the variability of the tuning mechanism may be provided by a plurality of interchangeable lids, each lid defining at least one discharge opening having an open area differing from any of the other lids.
  • Each lid of the plurality of interchangeable lids may include a vortex finder arranged about the at least one discharge opening.
  • Each vortex finder may be defined by a hollow tube extending into the body from the at least one discharge opening. At least one of a length and a bore of the vortex finder may be variable for additional variability of the tuning mechanism.
  • Each lid of the plurality of interchangeable lids may have a vortex finder of one of a different length and bore.
  • Each vortex finder may be eccentrically arranged relative to a central axis of its associated lid.
  • the body may include a first body portion and a second body portion attached to the first body portion. Instead, the first body portion and the second body portion may be releasably attached to each other.
  • the inlet opening may be defined by at least one opening in the first body portion.
  • the outlet opening may be defined by the second body portion.
  • the second body portion may include a helix formed on an inner wall of the second body portion, the helix defining a path the seeds follow as they move towards the outlet opening.
  • a seed dispersal unit which includes: at least one first body portion defining at least one inlet opening for receiving a mixture of air and seeds and at least one discharge opening through which a portion of the air in the mixture is able to be discharged from the first body portion; and a second body portion defining an outlet opening through which seeds are ejected, the second body portion being releasably attached to the first body portion.
  • the seed dispersal unit may include a set of first body portions. Each first body portion may define the at least one discharge opening. The at least one discharge opening of each first body portion may have a different open area than the at least one discharge opening of any of the other first body portions. A height dimension of each first body portion in the set of first body portions may differ from the height dimension of any other first body portion of the set of first body portions.
  • Figure 1 shows a three dimensional view, from a first side, of a seed dispersal unit, in accordance with an embodiment of the invention
  • Figure 2 shows a three dimensional view, from a second side, of the seed dispersal unit of Figure 1
  • Figure 3 shows a top view of the seed dispersal unit of Figure 1
  • Figure 4 shows a side view of the seed dispersal unit of Figure 1
  • Figure 5 shows a sectional side view of the seed dispersal unit of Figure 1 taken along line A- A in Figure 4
  • Figure 6 shows a sectional side view of the seed dispersal unit of Figure 1 taken along line B-B in Figure 4
  • Figure 7 shows a schematic representation of a planting system including a plurality of seed dispersal units
  • Figure 8 shows a three-dimensional view, from a first side, of a seed dispersal unit, in accordance with another embodiment of the invention
  • Figure 9 shows a side
  • reference numeral 10 generally designates a first exemplary embodiment of a seed dispersal unit.
  • the seed dispersal unit 10 includes a body 12 defining an inlet opening 14 through which a mixture of air and seeds is received in the body 12.
  • the body 12 further defines an outlet opening 16 through which seeds are ejected from the body 12 and at least one discharge opening 18 through which a portion of the air in the mixture is able to be discharged from the body 12.
  • the seed dispersal unit 10 also includes a variable tuning mechanism 20 in communication with the inlet opening 14 for controlling the portion of the air discharged through the at least one discharge opening 18.
  • the body 12 includes a first body portion 22 and a second body portion 24 attached to the first body portion 22.
  • the first body portion 22 is in the form of a hollow cylinder and has a height 'h' as shown in Figure 5 of the drawings.
  • the first body portion 22 includes an inlet tube 26 which defines the inlet opening 14.
  • the inlet tube 26 of the first body portion 22 is arranged such that a side 28 of the inlet tube 26 is tangential to a wall 30 of the first body portion 22 as shown most clearly in Figure 3 of the drawings.
  • the second body portion 24 is frusto-conical in shape and includes a helix 32 ( Figures 5 and 6) formed on an inner wall 34 of the second body portion 24.
  • the helix 32 defines a path the seeds follow as they move towards the outlet opening 16.
  • the first body portion 22 and the second body portion 24 are manufactured as separate units and are joined together in a concentric arrangement by complementary connection formations 36.
  • the connection formations 36 are an internal thread on the first body portion 22 and an external thread on the second body portion 24.
  • the connection formations 36 provide for efficient and rapid disengagement of the first body portion 22 from the second body portion 24.
  • the first body portion 22 can be rapidly replaced by a different first body portion 22 of a different height 'h' as requirements demand to facilitate partial tuning of the unit 10 to control the amount of air discharged through the, or each, discharge opening 18.
  • the tuning mechanism 20 comprises a lid 38 releasably attached to the first body portion 22.
  • the lid 38 defines a plurality of apertures to form the discharge opening 18.
  • the variability of the tuning mechanism 20 is further facilitated by a plurality of interchangeable lids 38, each lid 38 defining at least one discharge opening 18 having an open area differing from any of the other lids 38.
  • Each lid 38 is releasably attachable to the first body portion 22.
  • the lid 38 includes tabs 40 to facilitate attachment of the lid 38 to the first body portion 22.
  • the tabs 40 extend below a bottom edge of the lid 38 and have a recessed region 42 defining a catch 44.
  • An end of the first body portion 22 includes a radially outwardly projecting lip 46 protruding outwardly from the first body portion 22 and shaped to allow clipping engagement of the catch 44 to retain the lid 38.
  • the lid 38 defines the discharge opening 18 in the form of a single aperture.
  • the discharge opening 18 is bounded by a vortex finder 48.
  • the vortex finder 48 includes a hollow tube 50 extending a length TX from the discharge opening 18, as shown in Figure 10 of the drawings, to a free end 52.
  • an operator can choose from a plurality of interchangeable lids 38 each with vortex finders 48 having length 'L' and/or bore differing from any of the other lids 38.
  • the vortex finder 48 could be arranged concentrically or eccentrically with its associated lid 38 as shown in Figures 12 and 13, respectively.
  • the vortex finder 48 in Figures 12 and 13 is arranged such that rotation of the vortex finder 48 positions the vortex finder 48 concentrically or eccentrically relative to the first body portion 22. Increasing the eccentricity reduces the portion of air discharged through the discharge opening 18 and increases the amount of air exiting through the outlet opening 16 with the seeds.
  • the seed dispersal unit 10 can be tuned to effect a required planting velocity of seeds being ejected through the outlet opening 16.
  • the resultant effect of tuning the lid dynamics may therefore be to vary the percentage of the inlet air diffused to the atmosphere through the discharge opening 18 from the main body 12 as compared to air exiting through the outlet opening 16 with the seed.
  • the tuning range may be adjustable from 0% of available air exiting via the outlet opening 16, up to 80% of the available air exiting through the outlet opening 16.
  • the need to tune the air stream may arise as a result of very heavy application rates or the seeding of very light weight seeds.
  • the seed dispersal unit 10 forms part of a planting system 54 ( Figure 7).
  • the planting system 54 is connected to a power take off of a tractor (not shown) and includes a hopper 56 containing a batch of seeds and a plurality of seed dispersal units 10 arranged to plant a plurality of rows during a single pass across a field. Each seed dispersal unit 10 is responsible for the sowing of seeds for a single row.
  • the hopper 56 is connected via a feed line 58 to the inlet opening 14 of each seed dispersal unit 10.
  • Each seed dispersal unit 10 is mounted to a frame (not shown) of the planting system 54 by a mount 60.
  • the mount 60 includes a U-bolt 62 threaded at both ends and nuts 64 to be received on the ends of the TJ-bolt 62.
  • the seeds are fed from the hopper 56 to the inlet opening 14 of each seed dispersal unit 10.
  • the seeds are gravity fed from the hopper 56 through the feed line 58 in the direction indicated by arrow 66 to the inlet opening 14 of each seed dispersal unit
  • a blower (not shown) is used to blow the seeds at a desired feed velocity through the feed line 58 to the inlet opening 14.
  • the shape of the second body portion 24 and of the helix 32 increases the velocity of the seeds travelling through the second body portion 24. Once the seeds reach the end of the helix 32, the seeds are discharged through the outlet opening 16. The velocity at which the seeds are discharged is determined by the portion of the air discharged through the discharge opening 18.
  • soil or debris often results in blockages of a seed boot (not shown) in communication with the outlet opening 16 of an associated seed dispersal unit 10 of the planting system 54. Such blockages result in uneven field coverage of a crop as the blockages prevent certain of the seeds from passing through the outlet opening 16.
  • the seed dispersal unit 10 directs the mixture to be discharged through the discharge opening 18 such that the seeds are sprayed to a height above the lid 38 to provide a visual indication of the blockage to an operator. It is, accordingly, an advantage of the invention that a seed dispersal unit 10 is provided with a tuning mechanism 20 which can be varied to control the velocity at which seeds are discharged through the outlet opening 16. In addition, the seed dispersal unit 10 comprises interchangeable components to facilitate the adjustment of the tuning mechanism 20.
  • the seed dispersal unit 10 reduces the degree of inaccuracy caused by seed bounce in a planting trench for a wide variety of seed types, application rates, and air volumes and velocities. It will be appreciated by persons skilled in the art that numerous variations and/or modifications may be made to the invention as shown in the specific embodiments without departing from the spirit or scope of the invention as broadly described. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Sowing (AREA)

Abstract

L'invention concerne une unité de dispersion de semences (10) qui comporte un corps (12) définissant une ouverture d'admission (14) à travers laquelle ledit corps (12) reçoit un mélange d'air et de semences. Ledit corps (12) définit également une ouverture de sortie (16) par laquelle les semences sont éjectées du corps (12) et au moins une ouverture d'évacuation (18) par laquelle une partie de l'air du mélange peut être évacuée dudit corps (12). L'unité de dispersion de semences (10) comporte en outre un dispositif de réglage variable (20) communiquant avec l'ouverture d'admission (14) en vue de réguler l'air évacué par les ouvertures d'évacuation (18).
PCT/AU2005/000792 2004-06-04 2005-06-02 Unite de dispersion de semences WO2005117564A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2005249146A AU2005249146A1 (en) 2004-06-04 2005-06-02 A seed dispersal unit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2004903021 2004-06-04
AU2004903021A AU2004903021A0 (en) 2004-06-04 A seed dispersal unit

Publications (1)

Publication Number Publication Date
WO2005117564A1 true WO2005117564A1 (fr) 2005-12-15

Family

ID=35463663

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2005/000792 WO2005117564A1 (fr) 2004-06-04 2005-06-02 Unite de dispersion de semences

Country Status (1)

Country Link
WO (1) WO2005117564A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012167372A1 (fr) 2011-06-09 2012-12-13 Dutch Blacksmith Shop Ltd. Amortisseur de chute destiné à un matériau acheminé de façon pneumatique
US9699956B2 (en) 2012-03-22 2017-07-11 Bayer Intellectual Property Gmbh Dust particles separator for seeding machine
DE102019130238A1 (de) * 2019-11-08 2021-05-12 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Abscheidevorrichtung zur pneumatischen Nachführung körnigen Materials und Filterkartusche zur Verwendung in der Abscheidevorrichtung
US11751501B2 (en) 2019-05-08 2023-09-12 Precision Planting Llc Seed orientation system for agricultural planters

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2107616A (en) * 1981-10-16 1983-05-05 Nat Res Dev Cyclone separator
US5917065A (en) * 1995-05-30 1999-06-29 Abb Flakt Ab Cyclone
US6267067B1 (en) * 1998-11-05 2001-07-31 Flexi-Coil Ltd. Nurse receiver and header for air seeders
US20020144637A1 (en) * 2001-03-22 2002-10-10 Ignatz Wendling Material decelerator for an air delivery system
JP2003001144A (ja) * 2001-06-25 2003-01-07 Masaaki Mukai サイクロン装置
US6505569B1 (en) * 2001-07-09 2003-01-14 Leroy J. Richard Seeder airflow control system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2107616A (en) * 1981-10-16 1983-05-05 Nat Res Dev Cyclone separator
US5917065A (en) * 1995-05-30 1999-06-29 Abb Flakt Ab Cyclone
US6267067B1 (en) * 1998-11-05 2001-07-31 Flexi-Coil Ltd. Nurse receiver and header for air seeders
US20020144637A1 (en) * 2001-03-22 2002-10-10 Ignatz Wendling Material decelerator for an air delivery system
JP2003001144A (ja) * 2001-06-25 2003-01-07 Masaaki Mukai サイクロン装置
US6505569B1 (en) * 2001-07-09 2003-01-14 Leroy J. Richard Seeder airflow control system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012167372A1 (fr) 2011-06-09 2012-12-13 Dutch Blacksmith Shop Ltd. Amortisseur de chute destiné à un matériau acheminé de façon pneumatique
CN103813706A (zh) * 2011-06-09 2014-05-21 踏板企业有限公司 用于空气输送材料的减速装置
EP2717669A4 (fr) * 2011-06-09 2015-08-12 Tread Entpr Ltd Amortisseur de chute destiné à un matériau acheminé de façon pneumatique
AU2012267180B2 (en) * 2011-06-09 2015-10-22 Tread Enterprises Ltd. Decelerating device for air conveyed material
US9699956B2 (en) 2012-03-22 2017-07-11 Bayer Intellectual Property Gmbh Dust particles separator for seeding machine
US11751501B2 (en) 2019-05-08 2023-09-12 Precision Planting Llc Seed orientation system for agricultural planters
DE102019130238A1 (de) * 2019-11-08 2021-05-12 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Abscheidevorrichtung zur pneumatischen Nachführung körnigen Materials und Filterkartusche zur Verwendung in der Abscheidevorrichtung

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