WO2021083536A1 - Machine d'épandage pneumatique - Google Patents

Machine d'épandage pneumatique Download PDF

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Publication number
WO2021083536A1
WO2021083536A1 PCT/EP2020/000176 EP2020000176W WO2021083536A1 WO 2021083536 A1 WO2021083536 A1 WO 2021083536A1 EP 2020000176 W EP2020000176 W EP 2020000176W WO 2021083536 A1 WO2021083536 A1 WO 2021083536A1
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WO
WIPO (PCT)
Prior art keywords
decentralized
metering
distribution
container
central
Prior art date
Application number
PCT/EP2020/000176
Other languages
German (de)
English (en)
Inventor
Norbert Rauch
Original Assignee
Rauch Landmaschinenfabrik Gmbh
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 filed Critical Rauch Landmaschinenfabrik Gmbh
Publication of WO2021083536A1 publication Critical patent/WO2021083536A1/fr

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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
    • 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
    • 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
    • A01C7/12—Seeders with feeding wheels
    • A01C7/127—Cell rollers, wheels, discs or belts
    • 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

Definitions

  • the invention relates to a pneumatic distribution machine for spreading material to be distributed, in particular seed and / or fertilizer, comprising
  • a central storage container carried by a frame and having at least one outlet opening;
  • At least one fan for applying the conveying line with an air stream
  • a plurality of decentralized containers arranged downstream of one end section of the conveying line, into which a respective end section of the conveying line opens;
  • a plurality of decentralized metering devices each arranged downstream of the outlet opening of a decentralized container, each with a decentralized metering roller driven independently of one another in rotation;
  • the invention also relates to a method for spreading material to be distributed, in particular in the form of drill seeds and / or fertilizer, in particular by means of a pneumatic distributing machine of the aforementioned type, comprising the following steps:
  • Pneumatic distribution machines of the aforementioned type are known in a variety of configurations, in particular in the form of seed drills, but also as pneumatic fertilizer spreaders, and serve as agricultural machines for the precise application of powder or particulate Ver parts, such as seed, e.g. wheat, barley, rape and the same and / or granulated fertilizers, eg nitrogen fertilizers in general or urea fertilizers in particular, phosphate fertilizers etc. over large working widths.
  • Pneumatic distributing machines of the generic type usually comprise a storage container mounted on a frame for receiving the goods to be distributed, which has one or more outlet opening (s) on its underside.
  • the at least one outlet opening can also open directly into at least one transfer chamber acted upon by an air stream, in order to convey it to a plurality of distribution organs via one or more conveying lines (see e.g. EP 2 966 965 B1), the at least one outlet is connected to it - Opening of the central storage container often downwards (each) to a central metering device.
  • the central dosing organ comprises a rotatable or rotationally driven central dosing roller, which can usually be designed in the form of a cell wheel or cam wheel roller, but also in the form of special seed wheel or push wheel rollers (see e.g. EP 2786 649 A2, DE 10155 395 B4 or DE 4411 000 CI).
  • the central metering roller is mounted, for example, in a metering housing of the central metering element, which usually has a metering inlet arranged on its upper side and connected to the outlet opening of the central storage container and a metering outlet arranged on its lower side.
  • Generic pneumatic distributing machines which, on the one hand, are designed as attachments in a relatively lightweight design that can be coupled to the three-point of a tractor, such as a tractor, and, on the other hand, can be placed on an axle-supported trailer or a self-propelled vehicle in a heavy-duty design,
  • a blower is used to convey the material to be distributed, which generates an air flow and whose pressure line connects to the outlet of the dosing housing of the central Dosieror and opens into a pressure distributor, to which an initial section of the delivery line (s) connects.
  • the distribution organs can have storage openings from which the material to be distributed is spread more or less linearly on the surface of the soil, as is the case, for example, for row sowing or fertilization may be desirable.
  • baffle plates or baffle plates can be provided as distribution elements on which the material to be distributed pneumatically transported in a respective end section of the conveying line (s) impinges and from there is deposited essentially in a fan shape on the floor.
  • distributing agents such as those used in particular for distributing seeds, but also for deep fertilization, include injection devices for introducing the distributing material into the soil, as known, for example, from WO 2015/120982 A1, in order to place the distributing material in a furrow to be introduced and the furrow in the ground to be closed again, preferably by means of downstream sliding locking devices, such as so-called harrows or the like.
  • sowing coulters or sowing tines are known as distribution organs, which likewise create a slot in the bottom in which the material to be distributed can be deposited.
  • pneumatic distribution machines are equipped with a central metering device, there are for transferring the goods to be distributed from the central metering device to the Distribution organs in the prior art primarily two alternatives:
  • pneumatic Ver submachines in which the material to be distributed from the central metering device via a transfer chamber of the type mentioned above will give up to the beginning section of a single conveyor line, which opens into a distributor head with a plurality of connections, which individually , for example with means of manually or motor-operated shut-off valves, can be closed.
  • a respective end section of the conveying line connects to a respective connection of the distributor head and connects the respective connection of the distributor head to a respective distributor element.
  • a part-width section control is ensured in that the shut-off valves of the distributor head assigned to the distributing elements that are not required are closed.
  • Such a pneumatic distribution machine in the form of a seed drill is known, for example, from WO 2015/028127 A1.
  • pneumatic distributing machines are known, in particular in the form of pneumatic fertilizer spreaders, which have a plurality of central metering devices, each of which comprises a rotationally driven central metering roller of the above-mentioned type, the metering housing of which is connected on the outlet side by a plurality of transfer chambers that are pressurized by means of a fan, From which several conveying lines branch off in groups, each of which opens into a distribution element.
  • each central dosing element is assigned its own, independently speed-controlled drive of its respective dosing roller, so that distribution elements arranged next to one another, which are supplied by the respective groups of conveying lines with are partially well supplied, which emanate from a respective central metering device, can be switched on or off in groups.
  • a pneumatic distribution machine can be found in DE 102004 030 240 A1, for example.
  • WO 2018/219489 A1 describes a pneumatic distributing machine with a central metering element which has been further developed by comparison and which has a plurality of central metering wheel segments driven independently of one another in rotation, each of which is followed by a transfer chamber to which a respective distributing element is attached leading delivery line connects.
  • a pneumatic distributing machine with a central metering element which has been further developed by comparison and which has a plurality of central metering wheel segments driven independently of one another in rotation, each of which is followed by a transfer chamber to which a respective distributing element is attached leading delivery line connects.
  • box spreaders or box seeders are known for distributing seed and / or fertilizer over very small working widths, in which the stored in a storage container and with means of the metering roller of a similar one Dosing organ dosed distribution material is applied purely by gravity either via one or more storage openings, e.g. provided at the end of hoses extending above the floor, onto the surface of the floor or, e.g. using suitable injection devices, seed prongs, seed coulters and the like, is introduced into the ground.
  • box spreaders or box seeders which can also be designed as followers or as attachments for tractors, such as tractors, are primarily used to bring the material to be distributed along relatively narrow areas, such as in vegetable growing for distributing fertilizer on relatively narrow beds.
  • Their working width which largely corresponds to the spreading width, is often in the order of magnitude of about 80 cm to about 3 m, for example single drive shaft is not possible.
  • the spreading of material to be distributed in the area of the tramlines can be interrupted by means of coupling elements or covers.
  • Such a precision seeder is known, for example, from US 2016/0095274 A1, in which case it is used for the simultaneous spreading of different types of distribution material.
  • the latter are dosed from several storage containers with means of an independently operated, central metering wheel and fed by means of a blower via a distribution line to a distribution unit, from where they are passed through seed lines to the individual distribution organs.
  • Each distributor is assigned a decentralized container with several chambers, to which the various types of seed are supplied from the central metering devices.
  • the chambers of the decentralized containers each include a decentralized metering element which is supplied with an air flow generated by an additional fan in order to ensure that individual grains are metered to the respective distributing element.
  • a similar precision seeder can be found in US Pat. No. 9,603,298 B2.
  • the conveying path from the central metering element (s) to the one that is usually perpendicular to the direction of travel is in a row
  • Distributing organs arranged on a casual arm is very long, so that it is always difficult for the operator to switch the dosing organs on and off, as they are required at the beginning and at the end of the Ver part work and on the occasion of every turn in the headland to estimate the dead time, how long the dispensing material dosed by means of the central dispensing element needs to be conveyed to the distributing elements.
  • the length of this conveying path which differs with increasing distance from the distributing elements to the outside, means that the distributing elements are successively supplied or no longer supplied with distribution material from the inside to the outside when the central Dosieror is switched on or off.
  • cornering with increasing working widths leads to sometimes considerable distribution inaccuracies, because the curve Inside and outside distribution organs are supplied with the same mass flow of material to be distributed and compensation of such distribution errors due to the aforementioned dead times is difficult for the operator even if the pneumatic distributor has several central metering elements, by means of which groups of distributing elements with different target values -Distributed quantities can be supplied (see e.g. DE 102004 030 240 Al).
  • the pneumatic conveying of the material to be distributed can generally lead to temporary accumulations of particles to be distributed up to a type of plug formation, which results in a faulty longitudinal distribution of the material to be distributed, i.e. in the direction of travel of the pneumatic distributor.
  • EP 2966 965 Bl mentioned briefly at the outset describes a pneumatic distribution machine in which the distribution material held in reserve in a central storage container is pneumatically fed to a plurality of decentralized metering devices by means of a fan via transport lines, in which the supplied mass flows of distribution material are metered and by means of a further blower each, in turn, pneumatically fed to a group of several distribution organs - here in the form of seed coulters become.
  • the invention is based on the object of developing a pneumatic cal distributor of the type mentioned, which is suitable for spreading seed drill and / or fertilizer, in a simple and inexpensive manner while at least largely avoiding the aforementioned disadvantages to the effect that a spontaneous start and a Spontaneous interruption of the supply of individual or groups of distribution organs with distribution material as well as a loading the same is possible with individually different mass flows of goods to be distributed. It is also directed to a method for spreading material to be distributed, in particular in the form of seed and / or fertilizer, which can be carried out by means of such a pneumatic distributing machine.
  • the first part of this object is achieved according to the invention in a pneumatic distribution machine of the type mentioned in that
  • a group of distributing organs is assigned to a respective decentralized metering device with a respective decentralized container, and
  • a respective decentralized metering element is arranged above the respective group of distributing elements, wherein the dispensing material dosed by means of a respective decentralized dosing organ can be fed to the respective group of distributing elements due to gravity.
  • the invention for solving this problem in a method for Ausbrin conditions of distribution material of the type mentioned further provides that the dosed distribution material is transferred from a respective decentralized metering member to a group of distributing members arranged below it as a result of gravity.
  • the embodiment according to the invention therefore provides a plurality of decentralized containers, which are supplied with distribution material from the central storage container by means of pneumatic conveying through a respective conveying line and which each have their own decentralized metering organ, whose metering rollers are independent of one another and - if available - of course, they are also driven in rotation independently of a central metering device.
  • the decentralized metering devices are used for the individual supply of the groups of distribution devices assigned to them with the respective Because the desired mass flow of material to be distributed, which does not necessarily have to be constant, but in particular can also take into account different application rates in different field sections.
  • the mass flow of material to be distributed metered by means of a respective decentralized metering element can be fed to the associated distribution elements purely due to gravity to the group, be it directly from a dosing outlet of the decentralized dosing element or be it via guiding devices such as chutes, pipes, shafts or the like.
  • the pneumatic distributor according to the invention is structurally simple, since the dispensing material dosed by means of the decentralized metering elements does not require any further (pneumatic) conveyance, but reaches the respective group of distributing elements purely due to gravity.
  • a pneumatic scalema machine or seed drill which has, for example, distribution elements in the form of disc or drag coulters, the precise seed placement is not impaired by "blowing out" the seed from the generated sowing furrow.
  • the design effort especially compared to single-grain seeders, proves to be significantly lower, since the decentralized containers provided with the decentralized metering devices supply groups of distributing devices and a decentralized container with a decentralized metering device is not assigned to each individual distribution device. which in particular also enables a very small lateral distance between the Ver part organs corresponding to the intended row spacing of, for example, about 12.5 cm or about 15 cm, as is required for many seeded seeds, such as wheat.
  • the pneumatic distributing machine has at least one central metering element downstream of the outlet opening of the central storage container with a rotationally driven central metering roller, such as a cam roller, cellular wheel roller or the like, with the transfer chamber having a metering outlet downstream of the central dosing element.
  • a rotationally driven central metering roller such as a cam roller, cellular wheel roller or the like
  • the transfer chamber having a metering outlet downstream of the central dosing element.
  • the central metering element only serves to fill the decentralized container by means of pneumatic conveyance through the conveying line (s) according to the need for distribution material of a respective decentralized container.
  • the distribution material is transferred from the outlet opening of the central storage container to at least one downstream, central metering element with a rotary-driven central metering roller, where the distribution material is then transferred by controlled and / or regulated rotation of the central metering roller of the central dosing element and is transferred into the transfer chamber downstream of the central dosing element.
  • the design according to the invention in this case on the one hand makes it possible for the initial section of the delivery line to open into a distributor head, which has a plurality of individually, preferably remotely controllable, closable connections, with a respective connection of the distributor head Connected end section of the delivery line which opens into a decentralized container each of a decentralized metering device, in order to fill this as required (if the associated connection on the distributor head is open) or not to fill (if the associated connection on the distributor head, e.g.
  • the presence of a distributor head can also be dispensed with if, for example, the central metering wheel of the central metering element has a plurality of central metering wheel segments that are driven in rotation independently of one another, each of which is followed by a transfer chamber which opens into a respective starting section of a conveyor line, the end section of which opens into a decentralized container each of a decentralized metering device.
  • Each decentralized container is consequently assigned one or a group of central metering wheel segments of the central metering wheel of the central metering element, so that each decentralized container can be filled as required and independently of one another.
  • a metering member with a plurality of independently driven rotationally driven metering wheel segments is known, inter alia, from WO 2018/219489 A1, which is hereby explicitly made the subject of the present disclosure.
  • a respective decentralized Be container of a respective decentralized metering element is equipped with at least one level sensor, which is equipped with a control and / or regulating device of the distributor.
  • Machine is connected to control and / or regulate the central metering element and / or closing elements of the individually closable connections of the distributor head in such a way that the filling level of a respective decentralized container is always between a predetermined minimum and maximum filling level during operation.
  • the decentralized metering organs are connected to a control and / or regulating device of the Ver submachine, which their decentralized metering rollers, in particular depending on at least one parameter from the group
  • Target distribution amount in particular according to an electronic application map (such as, in particular, depending on the target distribution amount of a respective group of distribution organs, which is supplied with distribution material from a respective decentralized dosing element of a respective decentralized container and which, depending on the nature of the soil and nutrient requirements of the Plants can be different),
  • Position of the distribution machine in the field which can be determined by means of a position detection system connected to the control and / or regulating device, e.g. GPS (such as, in particular, depending on the geographical position of a respective group of distribution organs, which are controlled by a respective decentralized Dosing organ of a respective decentralized container is supplied with Ver Lesgut, for example the center of a respective decentralized container can serve as a reference position, which can be determined from a central GPS signal and the geometric arrangement of the decentralized container), and
  • a position detection system connected to the control and / or regulating device, e.g. GPS (such as, in particular, depending on the geographical position of a respective group of distribution organs, which are controlled by a respective decentralized Dosing organ of a respective decentralized container is supplied with Ver Operagut, for example the center of a respective decentralized container can serve as a reference position, which can be determined from a central GPS signal and the geometric arrangement of the decentralized container), and
  • the decentralized dosing organs with the decentralized containers are preferably each arranged essentially with the same vertical spacing above a respective group of distributing organs, the decentralized dosing organs with the decentralized containers being in particular mounted in such a way that their vertical distance from the respective group of distributing organs during of the operation remains essentially constant.
  • the invention also provides the possibility of assigning a single distribution element to one or several decentralized container (s) with a decentralized metering element, so that the mass flow of distribution material for such a distribution element can be controlled and / or regulated independently of one another or such Distribution elements can be deactivated individually in order for the smallest possible part width with negligible dead times between a change in the mass flow of material to be distributed due to a change in the speed of the decentralized metering roller of the respective decentralized metering element and the arrival of the changed mass flow of material to be distributed at the associated distribution element to worry due to gravity.
  • the invention also provides the possibility of assigning a group of distribution elements to all decentralized containers with a decentralized metering element, so that the mass flow of distribution material for each group of distribution elements can be controlled and / or regulated independently of one another or individual groups can be individually deactivated by distribution devices - or more precisely: no more distribution material received - in order to allow for a somewhat coarser subdivision of the individual sections with again negligible dead times between a change in the mass flow of distribution material as a result of a change in the speed of the decentralized metering roller of a respective decentralized metering unit and to ensure the arrival of the changed mass flow of goods to be distributed at the associated group of distributors as a result of gravity.
  • At least one decentralized metering device can be provided, which belongs to a group, in particular of two, three, four, five, six, seven and / or eight adjacent distribution organs is assigned, the distance between the distribution organs provided in groups - as mentioned above - can be very small.
  • a pneumatic distributing machine in which different groups of distributing elements and possibly also individual distributing elements can be supplied with independently controllable and / or regulatable mass flows of distributing material from a unit formed from a decentralized dosing element and a decentralized container
  • the assignment of the decentralized containers with the decentralized dosing units to the respective distribution units can be configured individually and can be adapted to the specific needs of a very fine or somewhat coarser sub-division of the sections as well as, for example, depending on a tramline switching the center distance and the wheel or tire width of a self-propelled pneumatic distribution machine or a tractor, such as a tractor, which a pneumatic distribution machine designed as a self-propelled or as an attachment device by means of ih res three-point linkage to drive, pull or carry.
  • At least one central decentralized container with a decentralized metering device is assigned at least one group of distribution devices arranged between the wheels or tires of the distributor or a tractor that pulls or carries it, such as a tractor.
  • a single decentralized container with a decentralized metering device can be provided, which is assigned to all distribution organs arranged between such wheels or tires (the central section extends consequently from wheel to wheel), or, for example, two decentralized containers, each with a decentralized metering device, can be provided, which are each assigned to a group of distribution devices, which are located on the one hand between the center of the distribution machine and the left wheel or tire, on the other hand, extend between the center of the distribution machine and the right wheel or tire (two central sections consequently each extend from the center of the distribution machine to a respective wheel), with a finer subdivision between the wheels or tires, of course, if necessary of fewer, combined into a respective group and supplied by means of a respective decentralized metering
  • each decentralized container with a decentralized metering device that extends across the width of a wheel or a tire of the Ver sub machine or a pulling or supporting Ceia machine, such as a tractor, extending group of Distributing lorganen is assigned, which enables, for example, a need-wise release of the lanes when the respective decentralized metering devices are switched off.
  • each at least one outer, outside of the wheels or tires of the distribution machine or a decentralized container with a decentralized metering device is assigned to a group of distribution devices, their number corresponds to the number of distributing organs or an integer divisor thereof, which extend over the width of a wheel or tire of the distributing machine or a tractor pulling or carrying it (the outer one formed by a decentralized Bereheatl ter and a decentralized metering element Units can consequently be designed according to those of the lanes or, for example, be half or quarter as large and supply eight, four or two adjacent distributing elements in groups with distribution material).
  • the decentralized metering roller of a respective decentralized metering element which is assigned to a group of distribution elements, is driven to rotate at identical rotational speeds for all of the distribution elements assigned to it in order to be able to supply the same mass flow of material to be distributed to all distribution elements of this group of distribution elements, which can be done, for example, by means of a single, for example electric, rotary drive.
  • the partial widths of the distributing machine that can be achieved in this way consequently correspond to the sum of the individual partial widths of the individual distributing organs combined into a respective group, with several groups of distributing organs again not necessarily having to comprise the same number of distributing organs.
  • the decentralized metering roller of a respective decentralized metering element which is assigned to a group of distributing elements, is rotationally driven independently of one another at different rotational speeds for each distributing element or subgroups of distributing elements, in order to be able to supply all distribution organs or subgroups of distributing organs of this group of distributing organs with different mass flows of material to be distributed, so that partial width switching is possible within the group of distributing organs which are supplied with material to be distributed by one and the same decentralized dosing element.
  • the decentralized metering roller of a respective decentralized metering element which is assigned to a group of distributing elements, has a plurality of independently rotationally driven decentralized metering wheel segments, whose respective metering outlets each to a distributing element or to a subgroup of distribution organs of this group of Ver distribution organs opens.
  • Such a decentralized metering roller can, for example, again essentially be designed in accordance with WO 2018/219489 A1 cited above and, for example, have a decentralized metering wheel segment assigned to each distribution element of the group of distributing elements, or it can also comprise, for example, only two decentralized metering wheel segments each of which is able to supply a distribution element or a subgroup of distribution elements within the group of distribution organs assigned to this de central dosing element with different mass flows of material to be distributed, whereby, for example, two independent drives of the decentralized dosing wheel segments, which are seated on coaxial drive shafts, can be provided.
  • the decentralized metering organs include decentralized metering rollers with different types of metering wheels, so that they can be used for different distribution goods, e.g. for fine seeds on the one hand (e.g. rapeseed or the like), on the other hand for normal seed ( eg wheat or the like) can be used by covering the type of metering wheel that is not required by means of manually or motorized actuated slides or the like or by interrupting the flow to the metering wheel type that is not required in each case.
  • Such metering rollers are known, for example, from DE 37 23 495 A1 or DE 102018 006 660 A1.
  • the IERwei se each of a decentralized container each with a decentralized metering element supplied with distribution elements can be arranged at a small transverse distance from one another, in particular of at most about 15 cm.
  • the decentralized containers of the decentralized metering elements are preferably essentially tightly closed, in particular by means of a removable cover, in order to protect the distribution material received therein not only from external influences such as moisture, dirt, soil and dust particles, etc., but also usually on booms, such as coulter bars or the like, fixed decentralized Be container from a loss of distribution, if the boom is folded up or to the side after the distribution work is done in order to transport the pneumatic distribution machine over public roads from the processed field.
  • the end section of a respective conveying line expediently opens into a corresponding filler neck of a respective decentralized Bebirl age or possibly also its cover.
  • the decentralized containers of the decentralized metering elements should advantageously have a device for pressure equalization with respect to the environment so as not to impair the pneumatic supply of distribution material by means of the at least one central metering element.
  • Such pressure compensation devices can in principle have any configurations known as such from the prior art, for example in the form of a sieve, filter, sintered metal insert or the like.
  • the decentralized metering devices seal the decentralized container assigned to them when the decentralized metering roller is at a standstill.
  • the decentralized metering organs can be self-sealing, for example, in that they have a metering roller formed by a cellular wheel or a plurality of cellular wheel segments.
  • the decentralized metering devices can for this purpose have at least one slide, by means of which the decentralized metering device can be closed compared to the decentralized container, so that the passage opening from a respective decentralized container into a respective decentralized metering device is closed by means of the slide can.
  • a metering element reference is again made to DE 102018 006 660 A1, which has already been cited and which is hereby expressly made the subject of the present disclosure.
  • the rotary drives of the decentralized metering devices can in principle be any, expediently speed-controllable and / or regulatable drives, such as hydraulic drives
  • the drives can preferably be electrical drives which, for example, can be connected to the power supply of a tractor, such as a tractor, via appropriate interfaces.
  • the pneumatic distributing machine it can also be provided that it comprises a central first and second storage container on the one hand to allow two different distribution goods, such as a seed and a fertilizer or two different seed (e.g.
  • the pairs of decentralized containers are each provided with a decentralized metering device, the decentralized metering rollers of which are rotationally driven independently of each other in order to be able to feed the respective distribution material from the respective decentralized container at the desired application rate to the respective group of distribution devices.
  • the structure of the decentralized dosing elements of the pairs of decentralized containers can correspond to that of the decentralized dosing elements of the individual decentralized containers, whereby it is of course possible in a corresponding manner to use al len decentralized containers of the pairs of decentralized containers, groups of distribution elements or, if necessary, also individual ones Assign distribution organs. Accordingly, in a further development of the pneumatic distribution machine, it can be provided that it comprises the following components:
  • At least one fan for subjecting the first and second conveyor lines with an air stream
  • a plurality of decentralized first metering devices which are arranged downstream of a respective outlet opening of the decentralized first container and each have a decentralized first metering roller driven independently of one another in rotation
  • a plurality of decentralized second metering devices which are arranged downstream of a respective outlet opening of the decentralized second container and each Weil have a decentralized second metering roller driven in rotation both independently of one another and independently of the decentralized first metering rollers of the decentralized first metering members, wherein
  • a respective decentralized first metering element and a respective decentralized second metering element of a respective pair of a first decentralized container and one second decentralized container is assigned to a group of distributing organs
  • a respective decentralized first metering organ and a respective decentralized second metering organ of a respective pair of a decentralized first container and a decentralized second container is arranged above the respective group of distributing organs, both by means of a respective decentralized first metering organ and by means of a respective one decentralized second metering device can be supplied to the respective group of distributing devices due to gravity.
  • the pneumatic distributing machine has a central first metering element downstream of the first outlet opening of the central first storage container with a rotationally driven central first metering roller and at least one of the second outlet opening of the central one Having a second storage container downstream, central second metering element with a rotationally driven central second metering roller, the first transfer chamber being arranged downstream of a first metering outlet of the central first metering element and the second transfer chamber being arranged downstream of a second metering outlet of the central second metering element.
  • decentralized container pairs of the type described above which can be filled by fluidized distribution material flows from two separate storage containers (or from a storage container having several chambers)
  • a respective one or at least some the decentralized container or the pairs of decentralized first and second containers are each assigned an additional Befflel ter, which is referred to below as "additional container”.
  • the additional container is also equipped with an additional metering element, such as one of the type described above, which is able to feed the distribution material of the respective group located in the additional container to distribution elements or, if necessary, also to individual elements by means of gravity.
  • the additional containers are not connected to a central storage container, but are used to hold relatively small amounts of so-called microgranulates, such as micronutrients and trace elements, soil improvers, pesticides, etc., which are manually or automatically added to the additional containers before the distribution work can without the need for an additional storage container with appropriate pneumatic refill means. According to such a development, it can accordingly be provided in a pneumatic distribution machine according to the invention that
  • a respective decentralized container or a respective pair of a decentralized first container and a decentralized second container is assigned a decentralized additional container that is not connected to the at least one central storage container with a decentralized additional dosing element which is downstream of its outlet opening, the additional dosing elements each having one both independently of one another and independently of the decentralized metering rollers of the decentralized metering elements have rotary-driven decentralized additional metering roller,
  • a respective decentralized additional dosing element and a respective decentralized dosing element or a respective decentralized first dosing element and a decentralized one second metering member of a respective pair of a decentralized first container and a decentralized second container is assigned a group of distributing members
  • a respective decentralized additional dosing element and a respective decentralized dosing element or a respective decentralized first dosing element and a respective decentralized second dosing element of a respective pair of a decentralized first container and a decentralized second container is arranged above the respective group of distributing organs, with both the means of a respective decentralized additional metering organ as well as the distribution material dosed by means of a respective decentralized metering organ or a respective decentralized first and second metering organ can be fed to the respective group of Ver sub-organs due to gravity.
  • Fig. 1 is a schematic side view of a Ausuge approximate form of a pneumatic distributor according to the invention in the form of a seed drill for spreading seed and / or fertilizer;
  • FIG. 2 is a schematic perspective view of the pneumatic distribution machine according to FIG. 1,
  • FIGS. 1 and 2 are schematic views from above of the pneumatic distributor according to FIGS. 1 and 2;
  • FIG. 4 is a schematic perspective view of a
  • FIG. 5 shows a schematic perspective detailed view of the distributor head according to FIG. 4 with a plurality of connections and housings attached to them, each with a shut-off device for closing individual connections as required;
  • FIG. 6 shows a schematic perspective view of one of the housings according to FIG. 5;
  • FIG. 7 is a schematic sectional view of the housing according to FIG. 6;
  • FIG. 8 shows a schematic perspective view of an embodiment of a central metering element of the pneumatic distributing machine with a central metering roller which comprises a plurality of central metering wheel segments and which can make a distributor head dispensable;
  • FIG. 9 is a schematic perspective sectional view of the segmented central metering roller of the central metering element according to FIG. 8, as it can in principle also be provided for decentralized metering elements to which a group of sub-organs is assigned;
  • FIGS. 8 and 9 shows a schematic longitudinal section through the segmented central metering roller of the central metering element according to FIGS. 8 and 9;
  • FIG. 11 shows a schematic cross-sectional view of the segmented central metering roller of the central metering element according to FIGS. 8 to 10;
  • Fig. 12 is a schematic perspective view of embodiments of each from a decentralized container with a decentralized metering GE formed units, some of which are individual Distribution organs and other groups of distributing organs of the pneumatic distributor according to FIGS. 1 to 3 are assigned;
  • FIG. 13 shows a schematic perspective detail view of part of the units formed from the decentralized metering devices and the decentralized containers according to FIG. 12;
  • FIGS. 12 and 13 shows a schematic side view of part of the units formed from the decentralized metering elements and the decentralized containers according to FIGS. 12 and 13, viewed from the front, i.e. parallel to the direction of travel;
  • FIGS. 12 to 14 shows a schematic side view of the units formed from the decentralized metering elements and the decentralized containers according to FIGS. 12 to 14, viewed from the side, i.e. perpendicular to the direction of travel;
  • 16 is a schematic side view of another
  • FIG. 17 is a schematic perspective detailed view of an embodiment of a unit formed by a decentralized container and a decentralized metering element according to FIGS. 12 to 15, to which a group of - here five - is assigned to distributing elements; 18 shows a schematic perspective view of the unit comprising a decentralized container and a decentralized metering element according to FIG. 17 with a cut-open metering housing of the decentralized metering element to illustrate its decentralized metering roller;
  • FIG. 19 shows a schematic perspective detailed view of an embodiment of a decentralized dosing element which is an alternative to the decentralized metering element according to FIG. 18, which has a sealing function with respect to the decentralized container assigned to it;
  • FIG. 20 is a schematic sectional view through the dosing organ according to FIG. 19;
  • FIGS Flock of carriers is a schematic perspective detailed view of an embodiment of a unit formed by a decentralized container and a decentralized dosing unit according to FIGS Flock of carriers;
  • FIG. 22 shows a schematic side view of the unit formed from the decentralized metering element and the decentralized container according to FIG. 21 from the side, i.e. viewed perpendicular to the direction of travel;
  • FIG. 23 is a schematic side view of the unit formed from the decentralized metering element and the decentralized Befflel ter according to FIGS. 21 and 22 from the rear, ie parallel to the direction of travel. seeks.
  • a pneumatic distributor is shown schematically, which is designed in the present case like a sowing or drilling machine and, for example, on a übli chen three-point linkage of a tractor, such as a tractor, can be releasably set. It comprises a central storage container 1 for receiving material to be distributed, such as seed and / or fertilizer, with a cover 2 which is carried by a frame 3. On the latter, a fan 4 for generating an air flow is also Festge sets.
  • a central metering element with a central metering roller that is driven and / or regulated in rotation such as a cam wheel, cellular wheel roller or the like (see below), is arranged, of which the 4, only the metering outlet 13 can be seen, to which the transfer chamber 14 adjoins at the bottom.
  • the transfer chamber 14 is acted upon by the blower 4 with an air stream in order to convey the material to be distributed upwards into a distributor head 7. As can be seen in particular in FIGS.
  • the distributor head 7 comprises a plurality of connections arranged around its circumference, in the present case extending approximately radially outward, to each of which an end section 6b of the delivery line 6 is connected as it is out of Illustrative reasons only in Fig. 4 for three end sections 6b is indicated by dashed lines.
  • the connection of the end sections 6b of the delivery line 6 can be done for example by means of a housing 18, as described in more detail below with reference to FIGS. 5 to 7.
  • the outgoing from the distributor head 7 Endab sections 6b of the delivery line 6, which can be designed, for example, in the manner of hoses and are not shown in FIGS , ends facing away from the distributor head 7 are provided with distributing members 8.
  • these distribution members 8 are coulters which are fixed on its boom 9 extending transversely to the direction of travel F, such as a coulter carrier.
  • the boom 9 provided with the distributing organs 8 is in the present case connectable to the frame 3 of the seed drill via a coupling and expediently foldable in order to be able to transport it over the public road network.
  • soil cultivation devices 10 such as smooth and / or rough rollers, rotary harrows or the like, on which the frame 3 is able to be supported on the ground.
  • Fig. 4 shows the pneumatic conveying components of the distributor according to FIGS. 1 to 3, which are used for transferring the distribution material from the inside of the housing 5 be sensitive transfer chamber 14 into the distributor head by means of the initial section 6a of the conveyor line 6.
  • the latter has at its end facing away from the distributor head 7 a connection piece 12 for fluid contact with the fan 4 (see FIGS. 1 and 2), with the metering outlet 13 of the central do- sierorgans in the transfer chamber 14, which is traversed by the starting section 6a of the conveyor line 6, a opens.
  • the dispersed material dispersed into the air flow first passes through an approximately horizontal section of the initial section 6a of the feed line 6 in a riser section of the same, which opens from below into the center of the distributor head 7, around which the radial connections for the housing begin 18 are arranged, each of which is followed by an end section 6b of the delivery line 6.
  • a nozzle on the one hand, and a diffuser configured in the manner of an expansion nozzle on the other hand can be accommodated (not shown), so that the material to be distributed, after it has been dosed in a desired mass flow by means of the central metering element, in which the transfer chamber 14 arranged between the nozzle and the diffuser of the injector is transferred into the diffuser by means of the gas stream flowing in via the nozzle and from there into the starting section 6a of the delivery line 6 arrives.
  • FIG. 5 is a detailed view of the distributor head 7 with the detachably attached housing 18 is give again.
  • the distributor head 7 comprises, on its - upper - side opposite the start section 6a of the conveying line 6 (see FIG. 4), a removable cover 16, which is fastened to the distributor head 7, for example by means of screws 15, which the in makes accessible nere of the distributor head 7 including the delivery line 6 and in particular the housing 18 attached to its connections.
  • An embodiment of the housing 18 including shut-off organs housed therein is shown in FIGS. How does this Obviously, the housing 18 has a grit channel 20 which, at its end facing the distributor head 7, can be releasably fastened to the connections of the distributor head 7 by means of suitable locking connections 21.
  • the closure member 22 which is formed in the present case by a flap 23, which is arranged around an axis 24, for example perpendicular to the direction of extent of the grit channel 20 between a closed position (not shown) and an open position (see. Fig. 7) is pivotable back and forth.
  • a terminal lever 25 of the flap 23 to cross, linearly movable back and forth actuator 26, wel cher via a gear 27 of an electric drive motor 28 is actuated.
  • the actuator 26, the gear 27 and the drive motor 28 are received in a separate section of the housing 18 from the grit channel 20, the actuator 26 being connected to a control and / or regulating device, not shown in the drawing, of the pneumatic Ver submachine in connection with the To be able to open and close closure members 22 individually and independently of one another.
  • a rotary drive for example an electrical one, which is in turn connected to the control and / or regulating device of the pneumatic distributor Rotary drive
  • FIG. 8 shows another embodiment of a central dosing element 30 with a central dosing roller 31, which in the present case is configured, for example, in the manner of a cam roller, but, depending on the type of material to be distributed, can of course also be configured in the manner of a cellular wheel roller or in any other known manner.
  • the central metering element 30 supplies a plurality of initial sections 6a of delivery lines 6 via a plurality of transfer chambers 14, in the present case six delivery lines 6 are shown in the drawing as an example, the number of delivery lines 6 but the number of lines below in relation to the Fig. 12 ff more detailed units of decentralized Be containers and decentralized metering devices, which can be supplied by one or more central metering devices 30, respectively.
  • the central metering element 30 is located below an outlet opening 29 of the central storage container 1 (see FIGS. 1 to 3) and comprises a central metering housing 32 in which the central metering roller 31 is rotatably mounted.
  • the central metering roller 31 of the central Dosieror gans 30 includes one of the number of conveyor lines 6, which are supplied by the central metering member 30, corresponding number of central Dosierradsegmenten 33, which inde pendent of each other are rotationally driven.
  • this is done by means of one, independently of one another, speed-controllable and / or regulatable, here electric, electric motor 34 assigned to a respective central metering wheel segment 33, in order to stop both individual central metering wheel segments 33 of the central metering roller 31 and the central metering wheel segments 33 to be able to drive with different rotation speeds.
  • the central metering wheel segments 33 of the central metering roller 31 are here, for example, on one another Supported essentially tubular hollow body 35 extending coaxially to its axis of rotation, which is rigidly, but preferably releasably, fixed in the central metering housing 32.
  • the - here electrical - rotary drives 34 of the central Dosierradsegmente 34 are protected from external influences in the interior of the tubular hollow body 35 and are screwed, for example, to mounting flanges in the interior of the hollow body 35.
  • the latter is provided with a plurality of through openings 36 which are arranged at a distance from one another in the axial direction and which are overlapped by a respective central metering wheel segment 33.
  • the through openings 36 of the hollow body 35 serve to connect a respective rotary drive 34 to a respective central metering wheel segment 33, which for this purpose has internal teeth 37 which extend around an inner circumferential section and which are left free through a respective through opening 36 of the hollow body 35.
  • the internal toothing 37 of a respective central dosing wheel segment 33 is in engagement with a respective gear 38, which is mounted on an output shaft 39 (cf. FIG. 11) of a respective rotary drive 34, expediently arranged eccentrically with respect to the axis of rotation of the central dosing wheel segments 33 sits.
  • WO 2018/219489 A1 cited above with regard to the design of such a central metering element 30.
  • FIG. 12 While in Fig. 12 a detailed view of one of the casual 9 of the pneumatic distributor shown in FIGS. 1 to 3 is shown schematically, Figs. 13 to 15 each show a portion of this boom 9 over half of its transverse extent for purposes of illustration.
  • the distribution members 8 - here in the form of seed coulters - at a distance of, for example, 12.5 cm, are on the boom 9 in a conventional manner. 15 cm or the like attached, as desired for the application of the respective seed.
  • a plurality of decentralized containers 40 are fastened to the boom 9 above the distributing elements 8, which can have different capacities, depending on whether they are attached to a distributing element 8 (see, for example, in FIGS.
  • the decentralized container 40 like the distributing members 8, are preferably detachable, that is to say at a variable distance, on the boom 9 installed in order to be able to set them according to the desired row spacing of the seed on the boom 9.
  • the decentralized containers 40 are in the present case also essentially tightly closable by means of a cover 42 each, whereby they are expediently equipped with a device (not shown in the drawing) for pressure equalization with respect to the environment, such as in the form of a sieve, filter, sintered metal insert or the like, may be provided.
  • Each decentralized container 40 is connected by means of one or more filling nozzles 43 to an end section 6b of the distribution line 6, which - as mentioned above - for example with a respective connection of the distribution head 7 (see in particular FIG. 4) or directly with egg ner respective, the central metering 30 downstream individual transfer chamber 14 is in connection (see FIG. 8) in order to be able to ben the decentralized containers 40 in an automated manner to be distributed from the central storage container 1.
  • Each decentralized container is located on its underside
  • each decentralized metering device 41 connects, each decentralized metering device 41 one rotary-driven decentralized metering roller 44, which can best be seen in FIG. 18, in which the metering housing of the decentralized metering element 41 is shown broken away.
  • the decentralized metering roller 44 of each decentralized metering element 41 is independently controllable and / or adjustable by means of its own, e.g. electric, rotary drive 45, which is connected to the control and / or regulating device, according to the individually desired mass flow of material to be distributed - ben.
  • each decentralized container 40 is each arranged directly above the distribution element 8 assigned to them or the group of distribution elements 8 assigned to them, so that the goods received by means of a respective decentralized dosing element 41 from a respective decentralized container 40 are distributed according to their Dosing is fed purely as a result of gravity to the distribution element 8 below or the group of distribution elements 8 below. This is done, for example, by means of a collecting funnel 46 arranged below the metering outlet of a respective metering element 41 in or directly below its metering housing, to which a hose line 47 can connect, which ends directly at the distribution element 8 - as here, for example, at a respective seed coulter ( see in particular FIG. 15).
  • All decentralized containers 40 with their decentralized metering devices 41 - be they a single distribution device 8 (FIGS. 21 to 23) or be assigned to a group of distribution devices 8 (FIGS. 17 and 18) - are at the same vertical distance above the respective Distributing members 8 mounted on the boom 9 so that this vertical distance, possibly apart from slight vibrations while driving over uneven terrain, remains approximately constant during operation.
  • An alternative embodiment of a decentralized dosing organ 41 compared to the decentralized metering element 41 according to FIG. 18, which has a sealing function with respect to the decentralized container 40 assigned to it, can be seen in FIGS. 19 and 20.
  • the decentralized metering roller 44 comprises in this case at least one - in the present case two or more - cell wheel segments which are self-sealing against the inner cross-section of the decentralized metering housing and, in the embodiment shown, also have different geometries intended for different distribution goods.
  • Each cell wheel segment of the metering roller 44 is also assigned a slide 49 that can be displaced between an open and a closed position, for example approximately in the circumferential direction of the decentralized metering roller 44 according to the arrow P in FIG required cellular wheel segment, on the other hand, all cellular wheel segments of the decentralized metering roller 44 is able to close ver, in order to also ensure the best possible seal of the metering element 44 with respect to the decentralized container 40, which is not shown again in FIGS. 19 and 20.
  • a drive 50 of the metering slide 49 arranged on the outside of the metering housing of the decentralized metering element 41 can be actuated manually or remotely controllable by a motor, with respect to the specific design of such an embodiment of a decentralized metering element 44 referring to DE 102018 006 660 cited above Al should be referred.
  • all units formed from a decentralized container 40 and a decentralized dosing element 41 can each be assigned to a group of distributing elements 8, or, if necessary, some decentralized containers 40 with a decentralized dosing element 41 can be a single Zigen distribution member 8 be assigned. While the last-mentioned embodiment is shown again in a schematic detailed view in FIGS. 21 to 23 (cf. also on the far left in FIGS. 12 to 14), one embodiment is one formed from a decentralized container 40 and a decentralized metering element 41 Unit which is assigned to a group of - here five - distribution members 8, in particular to be seen in FIGS. 17 and 18 (cf. also on the far right in FIGS. 12 to 14).
  • the decentralized metering roller 44 - here for example in the form of a cam roller - of the decentralized metering element 41 can in this case be rotationally driven by means of a single rotary drive 45, so that the rotational speed of the decentralized metering roller 44 is identical for all - here five - of the distributing elements 8 assigned to it and the latter are consequently each supplied with an identical mass flow of goods to be distributed.
  • the decentralized metering roller 44 of a respective decentralized metering element 41 which is assigned to a group of distributing elements 8, with different rotational speeds for each distributing element 8 or sub-groups of distributing elements 8 independently of one another is driven in rotation in order to be able to supply different mass flows of material to be distributed to all distribution elements 8 or subgroups of distribution elements 8 of this group.
  • the decentralized dosing element 41 can be configured, for example, essentially in accordance with the embodiment of a central dosing element 30 shown in FIGS. 9 to 11, so that each of the independently rotating dosing wheel segments can be provided with a respective dosing outlet, if necessary via a respective collecting funnel 46 and a ne this downstream hose line 47, each one of the distribution members 8 is supplied with distribution material.
  • the decentralized containers 40 of a respective decentralized metering element 41 can also be equipped with level sensors 48 be equipped, wel cher with the control and / or regulating device of the pneumatic tables distributing machine in connection to the zent ral metering element 30 (Fig. 9 to 11) and / or the one each of the connection of the distributor head 7 associated closure organs 22 of the To control and / or regulate the flap housing 18 of the distributor head 7 (FIGS.
  • a level sensor 48 arranged at a maximum fill level with those loading containers 40 which are assigned to a group of, for example, four or more Ver sub-organs 8 and consequently have a relatively large width , for example, each have two filling level sensors 48 arranged at a minimum and maximum filling level in order to take care of the fact that the powdery or particulate material to be distributed does not necessarily form a flat surface.
  • FIG. 16 shows a further embodiment of a unit formed from a first decentralized container 40a with a first decentralized dosing element 41a, a second decentralized container 40b with a second decentralized dosing element 41b and an additional container 40c with an additional dosing element 41c depicted as them for a known as such from the prior art and therefore not shown again in the drawing
  • Auscul approximately form of a pneumatic distributor application, which has two storage containers 1 or a storage container 1 having two separate chambers, which the NEN and the first for the storage of different distribution goods or second outlet opening is followed by a first or second transfer chamber, respectively, in order to pneumatically transfer the goods stored in a respective first or second storage container 1 via a conveyor line to one of the first 40a and second decentralized containers 40b.
  • the decentralized first container 40a and the decentralized second container 40b are each arranged in pairs, here for example one behind the other in the direction of travel, where both the first 40a and the second decentralized container 40b each have one Filling nozzle 43a, 43b, which is connected to one end section of a respective conveying line (not shown).
  • the decentralized first 41a and decentralized second metering elements 41b which are arranged downstream of a respective decentralized first 40a and decentralized second container 40b, can have a structure as described above, each with a decentralized first and second metering roller, which in turn are controlled and / or regulated independently of one another drives 45a, 45b, for example in the form of electric motors, are operated.
  • the groups of distributing members 8 arranged below the same or, if necessary, also individual distributing members 8 to which the both from, on the other hand from the decentralized second containers 40b and decentralized second dosing members 41b on the one hand from the decentralized first containers 40a and decentralized first metering devices 41b can in turn be assigned a respective first de- central container 40a as well as from a respective second decentralized container 40b metered mass flows of Ver part goods are transferred due to gravity, for example by being fed to the respective distributor 8 via a common collecting funnel 46.
  • a decentralized additional container 40c with a decentralized additional metering element 41c is provided, which is not connected to the central storage container 1 of the pneumatic distribution machine and, for example, manually or automatically with additional distribution goods, for example in the form of so-called Micro-granules, which are to be applied in only small quantities, can be filled.
  • the decentralized additional metering roller of the decentralized additional metering element 41c is again by means of its own for this purpose
  • Rotary drive 45c independently of the rotary drives 45a, 45b of the decentralized first 41a and second metering elements 41b controls and / or regulated rotationally driven and opens, for example, also into the collecting funnel 46, to the distribution material stored in the decentralized additional container 40c also to the respective distribution element 8 or the To be able to supply group of distribution organs 8 purely as a result of gravity.

Abstract

L'invention concerne une machine d'épandage pneumatique, telle qu'un semoir, pour la sortie d'un matériau d'épandage comprenant un contenant de stockage central (1) présentant une ouverture de sortie (29), une chambre de transfert (14) en aval de celui-ci pour transférer un matériau d'épandage stocké dans le contenant de stockage central (1) vers une section de départ (6A) d'une ligne de transport (6), un ventilateur (4) pour appliquer un flux d'air à la ligne de transport (6), une pluralité de contenants décentralisés (40) qui sont chacun en aval d'une section d'extrémité (6B) de la ligne de transport (6), une pluralité d'éléments de dosage décentralisés (41) qui sont chacun disposés en aval de l'ouverture de sortie (29) d'un contenant décentralisé (40), lesdits éléments de dosage ayant chacun un rouleau de dosage décentralisé (44) qui est entraîné en rotation, indépendamment les uns des autres, et une pluralité d'éléments d'épandage (8) en aval des éléments de dosage décentralisés (41). Selon l'invention, un élément de dosage décentralisé (41) comportant un contenant décentralisé (40) est associé à un groupe d'éléments d'épandage (8), et un élément de dosage décentralisé (41) est disposé au-dessus du groupe d'éléments d'épandage (8), le matériau d'épandage dosé au moyen d'un élément de dosage décentralisé (41, 44) pouvant être acheminé vers l'élément d'épandage (8) ou le groupe d'éléments d'épandage (8) par gravité.
PCT/EP2020/000176 2019-10-31 2020-10-15 Machine d'épandage pneumatique WO2021083536A1 (fr)

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DE102018006660A1 (de) 2018-08-23 2020-02-27 Rauch Landmaschinenfabrik Gmbh Dosiereinheit für pulver- oder partikelförmiges Verteilgut und Verteilmaschine mit einer solchen Dosiereinheit

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EP4349148A1 (fr) 2022-10-06 2024-04-10 RAUCH Landmaschinenfabrik GmbH Machine de distribution pneumatique et procédé de régulation du débit massique de son organe de dosage
DE102022125776A1 (de) 2022-10-06 2024-04-11 Rauch Landmaschinenfabrik Gesellschaft mit beschränkter Haftung Pneumatische Verteilmaschine und Verfahren zur Regelung des Massenstroms ihres Dosierorgans

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