WO2024041891A1 - Système de distribution de matériau pour une machine d'épandage, machine d'épandage et procédé de distribution de matériau d'épandage - Google Patents

Système de distribution de matériau pour une machine d'épandage, machine d'épandage et procédé de distribution de matériau d'épandage Download PDF

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Publication number
WO2024041891A1
WO2024041891A1 PCT/EP2023/072047 EP2023072047W WO2024041891A1 WO 2024041891 A1 WO2024041891 A1 WO 2024041891A1 EP 2023072047 W EP2023072047 W EP 2023072047W WO 2024041891 A1 WO2024041891 A1 WO 2024041891A1
Authority
WO
WIPO (PCT)
Prior art keywords
air pressure
distribution system
metering
conveying air
conveying
Prior art date
Application number
PCT/EP2023/072047
Other languages
German (de)
English (en)
Inventor
Daniel Mertens
Felix Warns
Thomas Wien
Original Assignee
Amazonen-Werke H. Dreyer SE & Co. KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Amazonen-Werke H. Dreyer SE & Co. KG filed Critical Amazonen-Werke H. Dreyer SE & Co. KG
Publication of WO2024041891A1 publication Critical patent/WO2024041891A1/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
    • A01C15/00—Fertiliser distributors
    • A01C15/04—Fertiliser distributors using blowers
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C7/00—Sowing
    • A01C7/04—Single-grain seeders with or without suction devices
    • A01C7/042—Single-grain seeders with or without suction devices using pneumatic means
    • A01C7/044—Pneumatic seed wheels
    • A01C7/046—Pneumatic seed wheels with perforated seeding discs
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C15/00—Fertiliser distributors
    • A01C15/005—Undercarriages, tanks, hoppers, stirrers specially adapted for seeders or fertiliser distributors
    • A01C15/006—Hoppers
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C7/00—Sowing
    • A01C7/06—Seeders combined with fertilising apparatus
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C7/00—Sowing
    • A01C7/20—Parts of seeders for conducting and depositing seed
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C7/00—Sowing
    • A01C7/20—Parts of seeders for conducting and depositing seed
    • A01C7/206—Seed pipes

Definitions

  • Material distribution system for a spreading machine, spreading machine and method for distributing spreading material Description The invention relates to a material distribution system according to the preamble of patent claim 1, a spreading machine according to the preamble of patent claim 10 and a method for distributing spreading material according to the preamble of patent claim 11.
  • Material distribution systems of modern Agricultural spreading machines can be designed as so-called nursing systems, in which a main distribution unit is used to generate several conveying air flows loaded with spreading material. The conveying air flows are then fed to several material receiving units of the dispensing machine, whereby the material receiving units can each be assigned to a dosing system or be part of a dosing system.
  • the application material accepted via the material acceptance units is then dosed in dosing systems so that the dosed application material can be placed on the agricultural area via storage devices.
  • the dosing systems can be operated pneumatically with a dosing air flow.
  • Corresponding material distribution systems usually have one or more fans in order to be able to provide the conveying air for the conveying air flows and the metering air for the metering air flows.
  • the conveying air pressure of the conveying air flows and the dosing air pressure of the dosing air flows usually differ from one another during operation of the material distribution system. From the document EP 3 987 904 A1 it is known that the suitable pressure differences between the conveying air pressure and the metering air pressure depend on the type of material to be distributed.
  • the object underlying the invention is therefore to enable needs-based adjustment of the air pressure control in pneumatic material distribution systems.
  • the object is achieved by a material distribution system of the type mentioned at the outset, the material distribution system according to the invention having a control device which is set up to adjust the conveying air pressure during an application process in several different operating modes of the material distribution system in a mode-specific manner depending on the metering air pressure.
  • the control device is preferably set up to adjust the conveying air pressure during the dispensing process in the respective operating modes of the material distribution system in such a way that a predetermined mode-specific pressure difference to the metering air pressure is maintained in the respective operating modes.
  • the mode-specific pressure differences that are maintained in the respective operating modes differ from one another.
  • the control device can be set up to set a first pressure difference between the conveying air pressure and the metering air pressure in a first operating situation during the dispensing process and to set a second pressure difference between the conveying air pressure and the metering air pressure in a second operating situation during the dispensing process.
  • the metering air pressure serves as a reference variable in the several operating modes.
  • the metering air pressure can change for various reasons P22-047 change during the application process, for example because energy needs to be saved, because temporary changes in the application material are detected or because the dosing systems of the material distribution system should be emptied.
  • the metering air pressure can be specified by operator input.
  • the control device can determine a default value for a metering air pressure to be maintained.
  • different mode-specific pressure differences between the dosing air pressure and the conveying air pressure can be advantageous.
  • several mode-specific pressure differences are assigned to a distribution product and/or a distribution product type.
  • the application material can, for example, be granular or granular application material, for example seeds.
  • the material distribution system can have a line system for the conveying air flows, via which the application material is conveyed from the main distribution unit to the metering systems.
  • the delivery air pressure is set in the respective operating modes of the material distribution system, preferably within the framework of a control system, so that the control device can be designed as a control device.
  • the material distribution system according to the invention can be operated in a continuous operating mode, in which the dosing systems are supplied with application material from the main distribution unit, and in an emptying mode, in which the supply of application material to the dosing systems from the main distribution unit is reduced or interrupted in comparison to the continuous operation mode .
  • the control device is preferably set up to adjust the conveying air pressure in such a way that mode-specific pressure differences that differ from the metering pressure are maintained in the continuous operating mode and in the emptying mode.
  • the control device is preferably set up to adjust the conveying air pressure in such a way that a predetermined continuous operating pressure difference to the dosing air pressure is maintained in the continuous operating mode and a predetermined emptying pressure difference to the dosing air pressure is maintained in the emptying mode.
  • the P22-047 is pumped essentially continuously Dispensing material from the main distribution unit to the dosing systems.
  • the emptying mode the delivery of the application material from the main distribution unit to the dosing systems is reduced or interrupted, for example due to a completely emptied storage container or due to a flow-related interruption in the delivery of the application material from the main distribution unit to the dosing systems.
  • the material distribution system has at least one conveying air pressure sensor, which is set up to determine the conveying air pressure.
  • the conveying air pressure sensor can be arranged in front of the main distribution unit or behind the main distribution unit in the flow direction of the conveying air.
  • the conveying air pressure sensor can also be arranged in the main distribution unit.
  • the material distribution system can include several conveying air pressure sensors, for example two conveying air pressure sensors, whereby the determined conveying air pressure can be an average of the sensor values of the conveying air pressure sensors.
  • the conveying air pressure can be monitored by the control device or taken into account as part of a control routine when setting the conveying air pressure.
  • the material distribution system can also have at least one metering air pressure sensor, which is set up to determine the metering air pressure.
  • the dosing air pressure sensor is preferably arranged in front of the dosing system in the flow direction of the dosing air.
  • the dosing air pressure sensor can also be arranged in a dosing system.
  • the dosing air pressure sensor can also be arranged behind the dosing system in the direction of flow of the dosing air.
  • the material distribution system can include a plurality of dosing air pressure sensors, for example two dosing air pressure sensors, whereby the determined dosing air pressure can be an average of the sensor values of the dosing air pressure sensors.
  • the metering systems each comprise a pneumatic separating device, which is set up to be operated by means of a metering air flow and to separate grains of the application material.
  • the dosing air pressure sensor can be installed in a separating device P22-047 of the dosing system. Furthermore, the dosing air pressure sensor can be arranged in front of or behind a separating device of a dosing system in the flow direction of the dosing air.
  • the dosing systems each have a material acceptance unit, which is set up to accept the discharge material provided via the conveying air flow and to temporarily store it before it is introduced into the separating device.
  • the material acceptance units are preferably set up to cause the conveying air to the respective dosing system to be interrupted when a specific level of temporarily stored application material is reached.
  • a material distribution system according to the invention is also advantageous in which the one or more fans have a conveying air blower for generating the conveying air, the control device being set up to control the conveying air blower for adjusting the conveying air pressure as a function of the metering air pressure.
  • the control device is preferably set up to adjust the conveying air pressure via the fan speed of the conveying air blower.
  • the delivery air pressure can also be adjusted via one or more air pressure control valves between the delivery fan and the main distribution unit or in the main distribution unit.
  • the conveying air pressure can also be adjusted by setting the maximum supply air quantity on the conveying air blower, for example by adjusting the opening status of a supply air opening.
  • the opening state of the supply air opening can be adjusted, for example, by means of one or more diaphragm bodies, such as slats.
  • a material distribution system according to the invention is preferred, in which the metering system is used to meter seeds and the material distribution system comprises a pneumatic fertilizer conveying device, the conveying air blower being set up to provide the fertilizer conveying device with conveying air for fertilizer conveying.
  • the conveying air blower is therefore used to provide the conveying air for the conveying air flows and to provide the conveying air for the fertilizer conveying.
  • the one or more fans have a metering air blower for generating the metering air, the control device being set up to control the metering air blower to adjust the metering air pressure.
  • the control device is preferably set up to adjust the conveying air pressure in such a way that a predetermined pressure difference to the metering air pressure is maintained.
  • the pressure difference can be specified by the operator or by the control device.
  • the main distribution unit can be filled with application material from a storage container and the level of application material in the main distribution unit can be changed and monitored by means of a level sensor.
  • the control device can be set up to adjust the conveying air pressure in such a way that above a critical fill level of application material in the main distribution unit and when reaching or below the critical fill level of application material in the main distribution unit, different fill level-dependent pressure differences to the metering air pressure are maintained.
  • the operating modes of the material distribution system can be assigned to a fill level or a fill level range of output material in the main distribution unit.
  • the control device therefore ensures an adjustment of the pressure difference to be maintained between the conveying air pressure and the metering air pressure when the level of application material in the main distribution unit drops below the critical level.
  • the level sensor can be an empty indicator.
  • the critical filling level can also affect the complete emptying of the main distribution unit.
  • the fill level can fall if the main distribution unit is charged with too little of the application material or the loading of application material is interrupted, for example due to the storage container being completely emptied.
  • a small pressure difference is set between the dosing air pressure and the conveying air pressure, so that the conveying air pressure is reduced. In this way, it is avoided that P22-047 is temporarily stored in the material receiving units of the dosing systems Spreading material is pressed into the separating devices, as a result of which the separating would be interrupted or impaired due to a blockage of the separating device.
  • a material distribution system is also preferred, in which the one or more fans comprise a common conveying and metering fan for generating the conveying air and the metering air, the control device being set up to provide an air distribution device connected to the conveying and metering fan for dividing the to divide the air flow generated by the conveying and metering fan into a main conveying air flow and a main metering air flow.
  • the main conveying air flow is fed to the main distribution unit, so that no separate conveying air blower is required.
  • the main dosing air flow is divided and then fed to the dosing systems, so that no separate dosing air blower is required.
  • the air distribution device can have a flap control.
  • the conveying and metering fan can also be set up to generate transport air for conveying another application material, such as fertilizer.
  • the air distribution device is set up, for example, to divide the air flow generated by the conveying and metering fan into the main conveying air flow, the main metering air flow and a main transport air flow.
  • the free flow cross sections for the respective flows can be specified or set via the air distribution device.
  • the air distribution device can be operated by an electric motor, for example via one or more electric motors, in particular electric linear motors.
  • the control device is set up to determine a predetermined pressure difference between the metering air pressure and the conveying air pressure via the fan speed of the conveying and metering fan and/or the free flow cross section for the main conveying air flow in the air distribution device and/or the free flow cross section for to adjust the main metering air flow in the air distribution device.
  • the free P22-047 The flow cross section for the main conveying air flow and the free flow cross section for the main metering air flow can preferably be set independently of one another in the air distribution device.
  • the material distribution system according to the invention has a plurality of storage devices which are set up to deposit the application material dosed by the dosing systems on the agricultural area.
  • the storage devices each have at least one curved storage line, which is designed to guide the metered application material along a curved material guide path in the direction of the agricultural area.
  • the curved deposit line is preferably a curved shot tube, the curvature of the deposit line causing the application material guided through the deposit line to come into contact with the inner wall of the deposit line, so that compliance with the material guide path is ensured.
  • a material distribution system according to the invention is also preferred, in which an intercepting element is arranged behind the storage devices in the direction of travel for intercepting the application material delivered in the direction of the agricultural area.
  • the interception elements can be, for example, catch rollers.
  • the deposit lines and the interception elements are preferably aligned with one another in such a way that the application material emerging from the deposit line is intercepted and immobilized between the soil of the agricultural area and the interception element.
  • interception elements precise placement of the application material on the agricultural land can also be ensured in overpressure dosing systems, for example dosing systems with overpressure separation, in which high material speeds develop within the deposit line.
  • a material distribution system according to the invention is also advantageous in which the placement depth of the application material is adjustable and the control device is set up to adjust the metering air pressure depending on the set placement depth.
  • the placement depth of the spreading material can be adjusted, for example, using a depth guide device for shares on the P22-047 Material distribution system can be set.
  • the object on which the invention is based is further achieved by an application machine of the type mentioned at the outset, the material distribution system of the application machine according to the invention being designed according to one of the embodiments described above.
  • the spreading machine can be a seed drill, a fertilizer spreading machine or a machine for the combined spreading of seeds and fertilizer.
  • the spreading machine can be, for example, an attached machine or a self-propelled machine.
  • the spreading machine can be designed as a trailed or carried machine.
  • the object on which the invention is based is further achieved by a method of the type mentioned at the outset, wherein the delivery pressure in the context of the method according to the invention is adjusted mode-specifically depending on the metering air pressure during an application process in several different operating modes of the material distribution system by means of a control device of the material distribution system.
  • the control device adjusts the conveying air pressure during the application process in the respective operating modes in such a way that a mode-specific predetermined pressure difference to the metering air pressure is maintained in the respective operating modes.
  • the mode-specific pressure differences differ from each other.
  • the material distribution system is operated in a continuous operating mode in which output material from the main distribution unit is supplied to the dosing systems.
  • the material distribution system is operated in an emptying mode in which the supply of application material to the dosing systems from the main distribution unit is reduced or interrupted compared to the continuous operating mode.
  • the control device sets the conveying air pressure in such a way that mode-specific pressure differences to the metering air pressure that differ from one another are maintained in the continuous operating mode and in the emptying mode.
  • Figure 1 shows an application machine according to the invention in a schematic representation
  • 2 shows a material distribution system according to the invention in a schematic representation
  • 3 shows a further material distribution system according to the invention in a schematic representation
  • 4 shows a dosing system of a material distribution system according to the invention in a schematic sectional view
  • 5 shows an area of a main distribution unit of a material distribution system according to the invention in a perspective view from below
  • Fig. 6 changes in the conveying air pressure and the metering air pressure while carrying out the method according to the invention.
  • Fig. 1 shows a spreading machine 10 designed as a large-area seed drill, by means of which seeds and fertilizer can be applied to an agricultural area at the same time.
  • the application machine 10 includes a material distribution system 12 for distributing the application material internally in the machine.
  • the spreading machine 10 comprises a machine frame 14 on which two storage containers 16, 18 are arranged.
  • the storage container 16 is used to store seeds.
  • the storage container 18 is used to store fertilizer, the storage container 18 comprising two container units in which different types of fertilizer can be carried.
  • Below the storage container 16 there is a main distribution unit 20 of the material distribution system 12.
  • the main distribution unit 20 is used to generate several conveying air flows loaded with seeds. The conveying air flows are fed to the dispensing machine 10 via dispensing lines 22 dispensing units 24.
  • the spreading units 24 each include a seed coulter 26, by means of which a placement furrow for the seeds is created in the soil of the agricultural area. Furthermore, the dispensing units 24 each include a dosing system 28, the dosing systems 28 each being operated pneumatically with a dosing air flow. The metering systems 28 are used to meter the seeds conveyed into the metering system 28 via the conveying air flows.
  • the spreading units 24 also include storage devices 30, via which the metered seeds are placed in the storage furrows created by the seed coulters 26.
  • the spreading units 24 also include fertilizer coulters 32, which serve to create a fertilizer placement furrow.
  • the fertilizer carried in the storage container 18 is conveyed via a fertilizer conveyor 34 to the spreading units 24 in order to be deposited from there into the depositing furrows created by the fertilizer coulters 32.
  • the material distribution system 12 includes a fan 36, which is used to generate the conveying air for the conveying air flows.
  • the blower 36 is connected to the main distribution unit 20 of the material distribution system 12 via a main conveying air line 38.
  • the blower 36 is also used for the P22-047 Generating a transport air for conveying the fertilizer to the application units 24.
  • the material distribution system 12 of the application machine 10 also includes a fan 40, which is used to generate the metering air for the metering air flows. By means of the metering air flows, the metering systems 28 of the dispensing units 24 can be operated pneumatically.
  • the material distribution system 12 also includes a control device 84, which is set up to adjust the conveying air pressure of the conveying air during the dispensing process in several different operating modes of the material distribution system 12 in a mode-specific manner depending on the metering air pressure of the metering air.
  • the control device 84 adjusts the conveying air pressure in the respective operating modes of the material distribution system 12 in such a way that a predetermined mode-specific pressure difference to the dosing air pressure is maintained in the respective operating modes, with the dosing air pressure serving as a reference variable in the respective operating modes.
  • 2 shows a material distribution system 12 for an agricultural spreading machine 10.
  • the material distribution system 12 includes a fan 36, which generates a main conveying air flow 46.
  • the main conveying air flow 46 is fed to the main distribution unit 20 via a main conveying air line.
  • the conveyor air main line is connected to the air inlet 66 of the main distribution unit 20. Excess air can be discharged into the environment via the adjustable air outlet 72.
  • Above the main distribution unit 20 there is a storage container 16 for the spreading material 48.
  • the spreading material 48 can be, for example, seeds.
  • the main distribution unit 20 has a material inlet opening 68, via which the application material 48 falls into the main distribution unit 20 under the influence of gravity. Within the main distribution unit 20, several conveying air flows 50 loaded with the application material 48 are generated, which are discharged from the main distribution unit 20 via the outlets 70. The conveying air flows 50 loaded with dispensing material 48 are fed to several dosing systems 28 via dispensing lines, with P22-047 in FIG a dosing system 28 is shown as an example.
  • the metering system 28 is operated pneumatically by means of a metering air flow 52 generated by the blower 40 and is used to meter the application material 48 conveyed into the metering system 28 via the conveying air flow 50 before depositing it on the agricultural land.
  • the dosing system 28 includes a material acceptance unit 42 and a separating device 44.
  • the material receiving unit 42 is set up to accept output material 48 provided via the conveying air flow 50 and to temporarily store it before it is introduced into the separating device 44. Furthermore, the material acceptance unit 42 is set up to cause the interruption of the conveying air flow 50 to the metering system 28 when a specific fill level of temporarily stored application material 48 is reached.
  • the separating device 44 is a pneumatically operated separating device which works according to the principle of overpressure separating.
  • the separating device 44 is set up to be operated by means of the metering air flow 52 and to separate grains of the application material 48.
  • the material distribution system 12 further comprises a control device 84, which is set up to adjust the conveying air pressure of the conveying air for the conveying air flows 50 during a dispensing process in several different operating modes of the material distribution system 12 in a mode-specific manner depending on the metering air pressure of the metering air for the metering air flows 52.
  • the material distribution system 12 can be operated in a continuous operation mode and in an emptying mode. In the continuous operating mode, the dosing systems 28 are supplied with application material 48 from the main distribution unit 20.
  • the supply of application material 48 to the metering systems 28 from the main distribution unit 20 is reduced or interrupted compared to the continuous operating mode.
  • the control device 84 adjusts the conveying air pressure in such a way that mode-specific pressure differences that differ from the metering air pressure are maintained in the continuous operating mode and in the emptying mode.
  • the P22-047 The control device sets the conveying air pressure in such a way that a predetermined continuous operating pressure difference to the dosing air pressure is maintained in the continuous operating mode and a predetermined emptying pressure difference to the dosing air pressure is maintained in the emptying mode.
  • FIG. 3 shows an alternative embodiment of the material distribution system 12, in which the outlets 70 of the main distribution unit 20 are initially connected to a flow divider 54, the flow divider 54 dividing the conveying air flow 50 loaded with application material 48, so that two metering systems 28 are connected via an outlet 70 the main distribution unit 20 can be fed.
  • the blower 40 provides the metering air flows 52 for the metering systems 28.
  • the blower 36 also generates a further main conveying air flow 64, via which fertilizer can be transported to the spreading units 24 of the spreading machine 10.
  • 4 shows a metering system 28 of a material distribution system 12.
  • the metering system 28 comprises a material acceptance unit 42 and a separating device 44.
  • the conveying air flow 50 loaded with application material 48 is introduced into the material acceptance unit 42 via the inlet connection 56.
  • the material acceptance unit 42 is used to accept and temporarily store the application material 48 conveyed via the conveying air flow 50.
  • the separating device 44 is a pneumatic separating device which works according to the principle of overpressure separating.
  • the separating device 44 comprises a separating disk 60, the separating disk 60 having a plurality of grain receiving pockets for receiving and dispensing isolated grains.
  • the separating device 44 can, for example, also have a separating drum instead of a separating disk.
  • the metering air flow 52 for operating the separating device 44 reaches the metering system 28 via the inlet connection 58.
  • the metered application material 48 in the form of isolated seeds is then discharged from the metering system 28 via the outlet connection 62 and fed to a storage device 30.
  • the storage device 30 has a curved storage line and is set up to deposit the application material 28 dosed by the dosing system 28 onto the agricultural area.
  • the dosing system 28 includes a dosing air pressure sensor 78, which is set up to determine the dosing air pressure of the dosing air of the dosing air flow 52.
  • the dosing air pressure sensor 78 can also be arranged in front of the dosing system 28 in the direction of flow of the dosing air. 5 shows the housing 82 of a main distribution unit 20.
  • the main distribution unit 20 includes a delivery air pressure sensor 76, which is set up to determine the delivery air pressure.
  • the conveying air pressure sensor 76 can also be arranged in front of the main distribution unit 20 or behind the main distribution unit 20 in the direction of flow of the conveying air.
  • the main distribution unit 20 can be filled with application material 48 from a storage container 16, the level of application material 48 in the main distribution unit 20 being monitorable by means of a level sensor 74.
  • the control device 84 is set up to adjust the conveying air pressure of the conveying air in such a way that above a critical fill level of application material 48 in the main distribution unit 20 and when reaching or below the critical fill level of application material 48 in the main distribution unit 20, different fill level-dependent pressure differences to the metering air pressure are maintained.
  • the housing 82 of the main distribution unit 20 includes emptying flaps 80a 80d, via which the main distribution unit 20 can be emptied, for example after completion of an application process.
  • 6 shows an example of the pressure curves of the conveying air pressure pF and the metering air pressure pD during an application process using a material distribution system 12.
  • the material distribution system 12 is operated in a first operating mode in which the control device P22-047 84 sets the conveying air pressure pF such that a mode-specific pD serves as a reference variable.
  • the metering air pressure pD changes slightly up to time t1, for example because the application machine temporarily detects changes in the application material 48 and these require the metering air pressure pD to be adjusted.
  • a second operating mode of the material distribution system 12 is set, with the control device 84 setting a lower metering air pressure than the conveying air pressure pF in the second operating mode of the material distribution system 12.
  • the setting of the new mode-specific time t2 is completed.
  • the control device 84 has a comparison with the remaining area of the agricultural land that is still to be processed, which means that the material receiving units 42 of the dosing systems 28 are completely emptied when the application process is completed.
  • P22-047 Reference number 10 Spreading machine 12 Material distribution system 14 Machine frame 16 Storage container 18 Storage container 20 Main distribution unit 22 Spreading lines 24 Spreading units 26 Seed coulters 28 Dosing systems 30 Storage devices 32 Fertilizer coulter 34 Fertilizer conveying device 36 Blower 38 Main conveying air line 40 Blower 42 Material receiving unit 44 Separating device 46 Main conveying air flow 48 Spreading material 50 Conveying air flow 52 Dosing air flow 54 Flow divider 56 Inlet connection 58 Inlet port 60 Separation disc 62 Outlet port 64 Main conveying air flow 66 Air inlet 68 Material inlet opening 70 Outlets P22-047 72 Air outlet 74 Fill level sensor 76 Conveying air pressure sensor 78 Dosing air pressure sensor 80a-80d Drain flaps 82 Housing 84 Control device pF Conveying air pressure pD Dosing air pressure t1, t2 Times p1, p2 Pressure differences P22-047

Abstract

Un système de distribution de matériau (12) pour une machine d'épandage agricole (10) est divulgué, une unité de distribution principale (20) étant destinée à générer une pluralité de flux d'air de transport (50) chargés avec un matériau d'épandage (48), une pluralité de systèmes de dosage (28) qui sont chacun conçus pour être actionnés pneumatiquement au moyen d'un flux d'air de dosage (52) et pour doser le matériau d'épandage (48) transporté dans le système de dosage (28) par l'intermédiaire de l'un des flux d'air de transport (50), et avec un ou plusieurs ventilateurs (36, 40) qui sont conçus pour générer l'air de transport ayant une pression d'air de transport (pF) pour les flux d'air de transport (50) et pour générer l'air de dosage ayant une pression d'air de dosage (pD) pour les flux d'air de dosage (52).
PCT/EP2023/072047 2022-08-23 2023-08-09 Système de distribution de matériau pour une machine d'épandage, machine d'épandage et procédé de distribution de matériau d'épandage WO2024041891A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022121240.8 2022-08-23
DE102022121240.8A DE102022121240A1 (de) 2022-08-23 2022-08-23 Materialverteilsystem für eine Ausbringmaschine, Ausbringmaschine und Verfahren zum Verteilen von Ausbringmaterial

Publications (1)

Publication Number Publication Date
WO2024041891A1 true WO2024041891A1 (fr) 2024-02-29

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PCT/EP2023/072047 WO2024041891A1 (fr) 2022-08-23 2023-08-09 Système de distribution de matériau pour une machine d'épandage, machine d'épandage et procédé de distribution de matériau d'épandage

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EP3987904A1 (fr) 2020-10-21 2022-04-27 Horsch Maschinen GmbH Machine à épandre agricole destiné à l'épandage d'un produit à épandre granulaire et procédé de fonctionnement d'une machine à épandre agricole

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US20100313801A1 (en) * 2009-06-12 2010-12-16 Great Plains Manufacturing, Incoporated Air-assisted planting system having a single fan with pressure-responsive splitting of air streams for conveying and metering functions
US20170086355A1 (en) * 2015-09-30 2017-03-30 Deere & Company Seeding system
US20200053955A1 (en) * 2016-10-11 2020-02-20 Deere & Company Seeding system
US20190021221A1 (en) * 2017-07-18 2019-01-24 Cnh Industrial Canada, Ltd. Air-Assisted Agitation For Tanks Of Application Equipment
DE102017122103A1 (de) * 2017-09-25 2019-03-28 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Sämaschine
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