EP3038447A1 - Épandeur pneumatique - Google Patents

Épandeur pneumatique

Info

Publication number
EP3038447A1
EP3038447A1 EP14758782.8A EP14758782A EP3038447A1 EP 3038447 A1 EP3038447 A1 EP 3038447A1 EP 14758782 A EP14758782 A EP 14758782A EP 3038447 A1 EP3038447 A1 EP 3038447A1
Authority
EP
European Patent Office
Prior art keywords
distributor
housing
sensor
distributor according
grit
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.)
Withdrawn
Application number
EP14758782.8A
Other languages
German (de)
English (en)
Inventor
Frédéric Klein
Sylvain CITERNE
Pierre JACQUIER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RAUCH Landmaschinenfabrik GmbH
Kuhn SAS
Original Assignee
RAUCH Landmaschinenfabrik GmbH
Kuhn SAS
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 RAUCH Landmaschinenfabrik GmbH, Kuhn SAS filed Critical RAUCH Landmaschinenfabrik GmbH
Publication of EP3038447A1 publication Critical patent/EP3038447A1/fr
Withdrawn legal-status Critical Current

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
    • A01C7/084—Pneumatic distribution heads for seeders
    • 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
    • A01C7/087—Tramlining
    • 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
    • A01C7/088—Sectional seeding
    • 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
    • A01C7/10—Devices for adjusting the seed-box ; Regulation of machines for depositing quantities at intervals
    • A01C7/102—Regulating or controlling the seed rate
    • A01C7/105—Seed sensors

Definitions

  • the invention relates to a pneumatic distribution machine for distributing material to be spread, with a container for receiving the material to be spread, a downstream of the container metering and downstream of the metering, acted upon by an air flow conveyor line for the metered spreading material, which opens into a distributor head, wherein the distributor head a A plurality of, in particular distributed around its circumference arranged, terminals and at least one of the terminals is connected to a housing which receives a shut-off device for interrupting the need of interrupting the stream and to which a distribution line can be connected.
  • Pneumatic distributing machines are widely used in agriculture for spreading seed or fertilizer.
  • the held in a container stockpiled grit is metered by means of a usually arranged below an outlet opening of the container
  • Do ⁇ sierorgan and the metered mass flow of grit is passed to a downstream of the metering, acted upon by a blower with compressed air delivery line, which in the compressed air stream dispersed, metered grit stream gives up a distributor head.
  • the distributor head comprises a plurality of outlets, which are usually distributed around its circumference and to each of which a distribution line connects, which serves to supply the grit stream in one of the number of Ver ⁇ divider lines corresponding partial streams per a distributor, which with different side spacing are arranged by the distributor.
  • the distribution machine is a fertilizer spreader
  • the distribution devices can be formed, for example, by baffle plates located at the end of the distribution lines.
  • the distributor is a seed drill, then the
  • Distributors e.g. Coulters include to introduce the seed into the soil. Such distribution machines are known inter alia from DE 44 34 963 AI or DE 197 47 029 AI.
  • DE 10 2010 053 883 AI describes a pneumatic distributor of the type mentioned, in which at the terminals of the distributor head housing with pivotable butterfly valves are set to selectively interrupt the (part) Streugutström the adjoining the housing, individual distribution lines and thereby In particular, to ensure various desired working widths or to make it possible to close within the desired working width individual distribution lines, for example, to save the tramlines to be created in the field, so there is not unnecessarily spreading material is applied.
  • the butterfly valves can be operated manually or by motor. In practice, it has been shown that individual butterfly valves can jam during operation or that blockages can occur, in particular in the distributor lines. This is especially true when the distribution organs located at their free ends are added with clods or the like.
  • DE 10 2008 016 107 Al is shown in a further pneumatic distributor, on whose Verteilerköpf a plurality of flexible distribution lines directly attached Schlos ⁇ sen.
  • the distribution lines each carry an externally applied to the same device for changing the line cross-section in the form of a motor actu ⁇ th clamping device, which by means of a clamping pin from the outside on the presses respective flexible distribution line and thereby able to reduce their cross-section, provided that it is traversed by a high grit flow.
  • the grit flow is detected by means of a sensor.
  • the device for Verän- alteration of the line cross-section can not completely close the respective manifold ⁇ pipe so that it is not possible to switch off individual distribution lines.
  • the clamping devices acting on the flexible distributor lines cause them to wear increasingly, the distributor lines representing a risk of clogging in the region of the clamping devices, in particular with progressive wear.
  • the arrangement of the clamping device on the flexible distribution line in terms of handling technology cumbersome and proves in particular the electrical or electronic contacting on the one hand the clamping devices, on the other hand, the sensors as a turn ⁇ dig, as they in the form of more or less exposed Ka ⁇ individually must be connected to a supply device.
  • DE 10 2012 101 531 A1 describes a farmer-trained in particular in the form of a drill. economic distribution machine with a distributor head, at the terminals housing are fixed, to which in turn the distribution lines are connected.
  • motor-driven pivoting flaps are on the one hand housed, which are intended for closing the tramlines associated, adjacent to the respective housing Ver ⁇ divergent pipes.
  • each housed in the housings a reed sensor, which serves to detect the position of the respective pivoting flap to control in this way, whether the respective setting ⁇ ment of the pivoting flaps (open or closed) with the desired setting of the tramlines (into which no grit applied and the flap thus ver ⁇ be joined soll) corresponds. It proves disadvantageous, in particular, that such a reed sensor can react exclusively to ferromagnetic materials and consequently only to the position of the flap (open or closed), so that malfunctions due to blockages of individual or multiple distribution lines can not be detected.
  • this object is achieved in a distribution machine of the type mentioned above in that the housing further receives at least one formed for detecting the spreading material flow sensor, wherein the sensor on Circumference of a housing passing through the grit channel is arranged, which is connected at its one end upstream of the sensor to the distributor head and at its other end downstream of the sensor to the distribution line.
  • the present invention on the Verteilerköpf attachable Ge ⁇ housing has first a from external influences ideal protected and easily accessible and optionally gungs- to cleaning and / or maintenance ticks easily removable or mountable accommodation both of the formed for detecting the grit flow sensor and the closure member in that, for example, only the distributor line is released from the grit channel of the housing, so that the grit channel provided with the sensor and the obturator is open from the outside. Due to the arrangement of the sensor on the grit channel of the housing arranged directly on the distributor head, the sensor is able to provide for an immediate recognition of any obstruction of the associated distributor line.
  • the sensor according to the invention designed for detecting the grit stream into ⁇ special also provides (for example, when the sensor detects despite opened during operation of the closure member kei ⁇ NEN grit current for an immediate detection of any malfunction of the closure member and / or the supplied ⁇ impaired distributor line, which an indication of one Blockage of the distribution line there, or for example if the closure member should be closed and the sensor nevertheless detects a grit stream, which gives an indication of jamming of the closure member).
  • the closure member of a respective housing it is possible for the closure member of a respective housing to be in operation during operation - ie during spreading or sowing work when the metering member is opened and a particle flow is thus supplied to the distributor head Detection of an interrupted grit stream by means of the sensor to close immediately by means of the closure member without the associated distribution line is further supplied grit and the latter accumulates there.
  • connections of the distributor head may each have a housing with a closure member and at least one sensor of the aforementioned type, to which, in turn, in each case one distributor line is connected.
  • this connection it is of course also possible to use only a few, e.g. provided on the occasion of sprinkling only a portion of the maximum working width required connections with such a housing, while the unneeded connections are closed.
  • the housing is detachably, in particular by means of screw and / or latching connections, fixed to the respective connection of the distributor head, so that a simple and quick accessibility of the housing in case of need from the distributor head is ensured and a modular design with a variety - in particular identical - cases results.
  • any other releasable connections such as quick fasteners, for example in the form of buckles or the like, come into consideration instead of screw and / or snap connections.
  • connections of the distributor head can in particular have connecting pieces for the respective housings, or the distributor head has two ring elements arranged approximately parallel to which and between which the housings can each be fixed substantially gas-tight, while the sealing of housings adjacent in the circumferential direction done by direct contact of suitable sealing devices of the housing with each other.
  • DE 10 2010 053 883 AI in particular to DE 10 2010 053 883 AI.
  • the obturator is suitably arranged on the distributor head facing the end of the grit channel to prevent any stagnation of grit from the distributor head forth to the obturator when the latter has been closed.
  • the senor is preferably downstream of the obturator, in particular under a certain - viewed in the axial direction of ⁇ Streugutkanals - distance from the obturator, arranged on the circumference of the housing passing through the grit channel, so that the grit passage of the housing passing Streugutström detected downstream of the obturator And it is in this way easily and very quickly possible, one - it was due to a malfunction, whether due to jamming, it was due to agglomeration of grit particles, etc. - accidentally not (completely) transferred to the closed position To immediately identify the obturator (namely, if in a supposedly closed obturator nevertheless a Streugutström is detected by sensors).
  • the obturator can for example have a - manually or motor-driven - actuatable flap, which can either be moved back and forth between an open position and a closed position or, if desired, in addition also in one or more positions can be converted, in which they the grit channel only partially closes the housing in order to compensate if necessary in the case of a sensory detected uneven spreading material distribution in the grit channels of the housing connected to the distributor head compensation.
  • a - manually or motor-driven - actuatable flap which can either be moved back and forth between an open position and a closed position or, if desired, in addition also in one or more positions can be converted, in which they the grit channel only partially closes the housing in order to compensate if necessary in the case of a sensory detected uneven spreading material distribution in the grit channels of the housing connected to the distributor head compensation.
  • the obturator on an electric motor drive which acts on the actuator, wherein the housing further comprises at least the electrical see and electronic connections of the drive.
  • the electromotive drive itself, for example, as known as such from the above-cited DE 10 2010 053 883 AI, be releasably placed on an electrically and electronically contacted mounting base of the housing, or it may also be accommodated in the housing in particular also.
  • the grit channel has an at least partially rectangular cross section, wherein the sensor is arranged on the rectangular cross section and essentially borrowed along at least one side of the rectangle.
  • the senor is able to detect a possible grit flow over the entire cross section of the grit channel, so that, for example, small leaks of the closure member, which can lead to only local penetration of a few grit particles, can be detected.
  • the senor can be of any known construction, which makes it possible to detect particles passing through it, preferably by an optical sensor, in particular in the form of a light barrier, but of course also by any other, suitable for detecting the spreading material flow and in particular touch - Freely measuring sensors may be formed, with only exemplary ultrasonic, infrared, ultraviolet, radar, microwave sensors and the like may be mentioned.
  • said rectangular cross-section section of the grit channel preferably transitions at its end remote from the distributor head into an outlet section with a substantially round cross-section, at which the usually tubular distributor line in FIG simple manner can be connected.
  • the outlet section may either be made integral with the housing or may also be secured to its grit channel at its end remote from the distributor head, such as e.g. flanged, his.
  • accommodating both the closure element and the sensor in the common housing which can be connected to the distributor head offers the advantage of ner simple electrical and electronic contacting of all, housed in the housing components, wherein the housing also can in particular also record at least one control board, which can serve to control the closing organ and for passing on the sensory data recorded to an electronic control unit.
  • the housings can be contacted preferably electrically and electronically in the manner of a series connection, whereby e.g. a single wire harness is guided from the distributor head forth in a first housing and from there in turn is guided in the following housing.
  • Corresponding field buses such as e.g. CAN bus or ISOBUS systems are known as such from the prior art.
  • connections of the distributor head are expediently distributed around the circumference of the distributor head, the distributor head in particular having a removable cover, which is preferably arranged at the side of the distributor head opposite the discharge point of the delivery line into the distributor head.
  • a removable cover which is preferably arranged at the side of the distributor head opposite the discharge point of the delivery line into the distributor head.
  • the terminals of the distributor head may be assigned a cleaning device in order to clean the grit channel of the housing fixed to the connections.
  • a cleaning device may be formed, for example, in the manner of a cylindrical, insertable into the grit channel of the housing brush and assigned to each housing, or the distributor head has only one or more such brushes, which along its circumference, such as by means of a guide, if necessary to can be moved to the housing to be cleaned / can.
  • the sensors and the motor drives of the shut-off devices of all housings preferably communicate with a common electronic control device in order to be able to operate the shutters individually, jointly or in groups, in response to an input command and / or automatically.
  • the electronic control device preferably comprises a display device which displays the position of the shut-off elements and / or the sensory grit flow.
  • the electronic control device preferably comprises an input device for actuating the shut-off elements individually, jointly or in groups.
  • the display device and the input device are expediently implemented in an operator terminal, which can be connected, for example, via cable or wirelessly to the distributor and, in particular, can be located in the driver's cab of a tractor such as a tractor.
  • control device moves a respective shut-off device into its closed position, provided that the sensor is open during operation - ie when the metering device is open during spreading or sowing, and for each distributor line, of which upstream obturator is open, a partial flow should be supplied to the grit - with open shut-off no or a reduced or only small Streugutström detected to the stray good current in the associated housing in view of a suspected clogging of the grit channel or this downstream distribution line immediately to close.
  • Fig. 1 is a schematic view of an embodiment of a pneumatic distributor of the latter
  • Fig. 2 is a schematic perspective view of the
  • Distributor head of the distributor of Figure 1 including the pneumatic conveying components.
  • Fig. 3 is a perspective detail view of the manifold ⁇ head of Figure 1 with a plurality of devices connected to the outlets housings.
  • FIG. 4 shows a perspective detailed view of an embodiment of one of the housings according to FIG. 3;
  • Fig. 5 is a sectional view of the housing of FIG. 4; and
  • FIG. 6 shows a plan view of the housing cut open corresponding to FIG. 5.
  • a pneumatic distributor which can be releasably fixed, for example, on a conventional Dreipunkgestnature a tractor. It comprises a container for receiving spreading material, such as e.g. Seed or fertilizer, with a cover 2, which are supported on supports 3 of a frame. At the latter, a blower 4 is further set for generating an air flow. Below an outlet of the approximately funnel-shaped downwardly tapering container 1 is a in Fig. 2 closer to the transfer device 5, which serves to transfer the material to be spread to a delivery line 6, which is acted upon by the fan 4 with an air flow to the
  • spreading material such as e.g. Seed or fertilizer
  • the distributor head 7 comprises a plurality of terminals distributed around its circumference, in the present case approximately radially outwardly extending terminals, to each of which a housing 18 (cf., Fig. 2 ff) is connected, each of which is explained in more detail below Shut-off device for on-demand interruption of the fluidized grit stream and each equipped with a sensor for detecting the partial flow of grit.
  • a respective distribution line 8 designed in the manner of a hose, for example, terminates at the respective housing 18 at its side facing away from the distributor head 7 (broken off in FIG. 1 for reasons of clarity).
  • these distributing members are seed drums not recognizable in detail, with feeders 9 arranged downstream thereof, so-called harrows.
  • the frame of the distributor can be supported by support wheels 10 on the floor 11, in particular by being lifted by them.
  • Fig. 2 shows the pneumatic conveying components of the distributor of FIG. 1, which for the transfer of the
  • Scrap material from the transfer device 5 in the distributor head 7 by means of the delivery line 6 serve.
  • the latter has at its end facing away from the distributor head 7, a connecting piece 12 for fluidic contacting of the blower 4 (Fig. 1), downstream of the connecting piece 12 of the outlet of a metering 13 opens via a provided with an injector transfer chamber 14 into the delivery line 6.
  • the eindisper- alloyed into the air stream spreading material first passes through a substantially horizontal portion of the conveying line 6 in a riser portion thereof which opens from below into the center of the distributor ⁇ head 7, around its circumference, the radial connections for the housing 18 are arranged.
  • FIG. 3 shows a detailed view of the distributor head 7 with the housings 18 detachably secured thereto.
  • the distributor head 7 comprises, at its top side opposite the riser section of the conveyor line (see FIG. 2), a detachable lid 16 which is detachably attached to the distributor head 7 and is fastened to the distributor head 7, for example. makes divider head 7 including the delivery line 6 and in particular the housing 18 fixed to the terminals accessible.
  • An exemplary embodiment of the housing 18, including the shut-off devices and sensors housed together herein, can be seen in FIGS. 4 to 6.
  • the housing 18 has a grit channel 20, which at its end facing the distributor head 7 can be detachably fastened to the connections of the distributor head 7 by means of suitable snap-in connections 21, such as tabs.
  • the distributor head 7 facing the end of the grit channel 20 is the closure member 22, which is formed in the present case of a flap 23, which is about a perpendicular to the extension direction of the grit channel 20 arranged axis 24 at least between a closed position (not shown ) and an opening position (FIGS. 5 and 6) can be pivoted back and forth.
  • the actuator 26, the gear 27 and the drive motor 28 are likewise accommodated in a section 29 of the housing 18 which is separate from the grit channel 20.
  • the grit channel 20 has at its end facing the distributor head 7 an approximately rectangular inner cross-section within which the flap 23 is pivotally mounted and the periphery of the same - downstream of the flap 23 - a sensor 30 is arranged, which for detecting the grit channel 20 passing Scattering stream serves and, for example, as an optical sensor, such as in the form of a Photocell, can be formed.
  • the sensor 30 extends substantially along at least one entire rectangular side of the inner cross section of the grit channel 20, so that the entire cross section of the grit channel 20 can be detected by sensors.
  • the light receivers are arranged on opposite sides of the cross section over their entire length.
  • the sensor 30 is in this case received in a circumferential extension 31 of the grit channel 20 of the housing 18.
  • the rectangular cross-section of the grit channel 20 merges into an outlet section 32 having an approximately circular cross-section to form a connecting piece for the distribution lines 8 usually formed by a flexible round tube.
  • the round outlet section 32 may be made integral with the housing 18 or, as is the case with the illustrated embodiment, may be fixed as a separate part to the grit channel 20, e.g. latched to it, his.
  • a control board (not shown) be accommodated, which for controlling the flap 23 and for passing the sensory data recorded to a central electronic control unit (not shown), in order to automatically actuate the flaps 23 individually, jointly or in groups as needed for a corresponding input command and / or as a function of the sensed grit flow.
  • the electronic control device can in this case also, on the one hand, on the one hand, Pointing device (also not shown), which indicates the position of the shut-off devices and / or the sensory grit flow detected, on the other hand, an input device (also not shown) include in order to enter the corresponding control commands for opening and closing the flaps 23 can ,
  • the control device can in particular be so program-technically set that it automatically puts the flap 23 of a respective housing 18 in its closed position, when the sensor 30 during the scattering or she Suites with open flap 23 no or too low a grit stream detected, so that the Streugutström in the associated housing 18 in view of a suspected clogging of the grit channel 20 or the downstream of this distribution line 8 (see. Fig. 1) to close.
  • the electrical and electronic contacting of the components accommodated in the housings 18 can be carried out in particular in the manner of a series connection, e.g. a wiring harness (not shown) from the distributor head 7 forth in a first housing 18 and guided from there in turn into the following housing 18.
  • the portion 29 of the housing 18 is provided for this purpose with holes 33 which serve for passing electrical power and electronic cables, such as CAN bus lines.
  • a cleaning device (not shown) may be assigned to the connections of the distributor head 7 in order to clean the grit channel 20 of a respective housing 18 fastened to its connections, provided that the grit channel 20 and / or the distributor line 8 adjoining thereto block the flap 23 jammed or the sensor 30 should be functionally impaired due to contamination or damage.

Landscapes

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

Abstract

L'invention concerne un épandeur servant à épandre un produit d'épandage, tel que des engrais ou des graines, comprenant un réservoir (1) destiné à recevoir le produit d'épandage, un organe de dosage (13) disposé en aval du réservoir et un conduit de transport (6) qui est disposé en aval de l'organe de dosage et auquel un flux d'air peut être appliqué, qui est destiné au produit d'épandage dosé et qui débouche dans une tête d'épandage (7). La tête d'épandage comporte une pluralité de raccords. Un boîtier (18), dans lequel est logé un organe de blocage (22) servant à interrompre si nécessaire le flux de produit d'épandage et auquel un conduit d'épandage (8) peut être raccordé, est raccordé à au moins un raccord ou en particulier à une pluralité de raccords. En outre, selon l'invention, un capteur (30) servant à détecter le flux de produit d'épandage est logé dans le boîtier. Le capteur est disposé à la périphérie d'un conduit de produit d'épandage (20) qui traverse le boîtier et qui est raccordé, à sa première extrémité en amont du capteur, à la tête d'épandage et, à son autre extrémité en aval du capteur, au conduit d'épandage.
EP14758782.8A 2013-08-30 2014-08-16 Épandeur pneumatique Withdrawn EP3038447A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013014386.1A DE102013014386A1 (de) 2013-08-30 2013-08-30 Pneumatische Verteilmaschine
PCT/EP2014/002256 WO2015028127A1 (fr) 2013-08-30 2014-08-16 Épandeur pneumatique

Publications (1)

Publication Number Publication Date
EP3038447A1 true EP3038447A1 (fr) 2016-07-06

Family

ID=51485546

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14758782.8A Withdrawn EP3038447A1 (fr) 2013-08-30 2014-08-16 Épandeur pneumatique

Country Status (3)

Country Link
EP (1) EP3038447A1 (fr)
DE (1) DE102013014386A1 (fr)
WO (1) WO2015028127A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE102015011496A1 (de) * 2015-09-09 2017-03-09 Rauch Landmaschinenfabrik Gmbh Verteilmaschine mit einer Einrichtung zur Ermittlung des Streuringsektors
DE102015116378A1 (de) * 2015-09-28 2017-03-30 Horsch Maschinen Gmbh Verteilturm einer landwirtschaftlichen Verteilmaschine
DE202016001953U1 (de) 2016-03-30 2017-03-31 Rauch Landmaschinenfabrik Gmbh Pneumatische Verteilmaschine und Absperrorgan für dieselbe
DE102017203855A1 (de) 2017-03-08 2018-09-13 Horsch Maschinen Gmbh Verteilerturm einer landwirtschaftlichen Maschine, landwirtschaftliche Maschine und Verfahren zum Betreiben einer solchen landwirtschaftlichen Maschine
DE102019007588A1 (de) 2019-10-31 2021-05-06 Rauch Landmaschinenfabrik Gmbh Pneumatische Verteilmaschine
FR3119508B1 (fr) 2021-02-05 2023-12-29 Kuhn S A S Procédé de semis contrôlé d’une parcelle agricole et système pour sa mise en œuvre

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US4913344A (en) * 1989-05-30 1990-04-03 Ag-Chem Equipment Co., Inc. Water rinse system for pneumatic spreaders
DE4434963C2 (de) 1993-10-22 1999-11-04 Rauch Landmaschfab Gmbh Sämaschine
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FR2888465B1 (fr) * 2005-07-13 2009-02-13 Sulky Burel Soc Par Actions Si Tete de distribution de semoir a double mode de fonctionnement, comprenant un couvercle de repartition homogene en densite d'un volume de semence a l'interieur d'une pluralite de diviseurs de semence
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DE102010053883A1 (de) 2010-12-09 2012-06-14 Rauch Landmaschinenfabrik Gmbh Pneumatische Verteilmaschine
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WO2012170690A2 (fr) * 2011-06-10 2012-12-13 Great Plains Manufacturing, Incorporated Tour de distribution de graines pour un semoir pneumatique
DE102012101531A1 (de) * 2012-02-27 2013-08-29 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Kontrollsystem zur Überwachung einer Fahrgasseneinrichtung

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Also Published As

Publication number Publication date
DE102013014386A1 (de) 2015-03-05
WO2015028127A1 (fr) 2015-03-05

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