DE102020117749A1 - Field sprayer system with a mounted field sprayer and a mounted tank - Google Patents

Abstract

The invention relates to a field sprayer system (110), with a first container (22), assigned to a mounted field sprayer (10), for spray liquid to be distributed, and a second container (24), preferably assigned to a mounted container (12), for spray liquid to be distributed, the mounted field sprayer ( 10) has a spray boom (16) with distribution elements (28) for distributing the spray liquid and wherein the first container (22), the second container (24) and the distribution elements (28) are functionally connected by means of a liquid line system (100) and the spray liquid is conveyed and/or relocated through the liquid line system (100) by means of a conveying device (50). In order to create a field sprayer system (110), which has a mounted field sprayer (10) with a first container (22) for spray liquid and a second container (24) for spray liquid and in which a reduced number of of liquid pumps (48) is required, the invention provides that the liquid line system (100) is designed and set up in such a way that the conveying and/or relocation takes place by means of a liquid pump (48) forming the conveying device (50). The invention relates also a method for conveying and/or relocating spray liquid.

Description

The invention relates to a field sprayer system with a first container for spray liquid to be distributed, a second container for spray liquid to be distributed and with a delivery device. The invention also relates to a method for conveying and/or relocating spray liquid.

A field sprayer system was developed by the DE 43 12 313 A1 already known. The field sprayer system consists of a liquid tank assigned to a mounted field sprayer and an additional container assigned to a mounted container, which are connected to one another via a liquid line system and have a conveying device for transferring and/or circulating the liquid. The conveyor device is controlled by means of a level-detecting float switch assigned to the liquid tank and the additional container.

The field sprayer system according to the DE 43 12 313 A1 comprises three liquid pumps, two liquid pumps forming the conveying device and at least one further liquid pump being required in order to convey spray liquid from the liquid tank to distribution elements mounted on a spray boom.

The field sprayer system known from the prior art therefore requires three liquid pumps in order to be able to carry out all the desired functions. However, liquid pumps are expensive and maintenance-intensive and also require a large installation space, which is sometimes only available to a limited extent, particularly in the case of compactly constructed mounted field sprayers.

The object of the invention is therefore to create a field sprayer system which has a mounted field sprayer with a first container for spray liquid and a second container for spray liquid and in which a reduced number of liquid pumps is required for conveying and/or relocating spray liquid.

This object is achieved by a field sprayer system having the features of independent claim 1 and by a method for conveying and/or relocating spray liquid having the features of method claim 24. Advantageous embodiments and developments of the invention are contained in the dependent claims and the following description disclosed with partial reference to the figures.

The invention relates to a field sprayer system, with a first container for spray liquid to be distributed, assigned to a mounted field sprayer, and a second container for spray liquid to be distributed, preferably assigned to a mounted field sprayer, with the mounted field sprayer having a sprayer boom with distribution elements for the distribution of the spray liquid and with the first container , the second container and the distribution elements are functionally (e.g. fluidly) connected by means of a liquid line system and the spray liquid is conveyed and/or rearranged (e.g. circulated between the first container and the second container) by means of a conveying device through the liquid line system.

In order to create a field sprayer system which has a mounted field sprayer with a first tank for spray liquid and a second tank for spray liquid and in which a reduced number of liquid pumps is required for conveying and/or relocating spray liquid, it is provided according to the invention that the liquid line system is designed and set up in such a way that the conveying and/or relocation takes place by means of a liquid pump forming the conveying device.

As a result of the measures according to the invention, a corresponding design of the liquid line system ensures that only one delivery device formed by a liquid pump is required to deliver and/or transfer the spray liquid from the first container and/or the second container and/or to the distribution elements, which means that a is created compared to the prior art much simpler constructed field sprayer system.

In the context of the invention, the field spraying system is expediently in particular a closed field spraying system, so that the first container and the second container act like a single container due to the line system and the conveying device.

It should be noted that in the context of the invention, the direction of travel corresponds in particular to a forward direction of the mounted field sprayer, in particular a direction in which the mounted field sprayer is moved along a field.

According to a preferred development of the invention, it can be provided that the liquid pump is set up to convey spray liquid from the first container and/or the second container by means of the liquid line system to the distribution elements at the same time (ie simultaneously, jointly and/or the like). This can in particular also be done selectively, for example by conveying the first container or the second container or the first container and the second container. old Natively or in addition to this, it can be provided that the liquid pump is set up to transfer spray liquid from the first container to the second container and/or from the second container to the first container by means of the liquid line system.

It is thus possible by means of the field sprayer system according to the invention in particular that spray liquid from the first container and/or the second container can be conveyed to the distribution elements without, for example, influencing the filling level of the respective other container (e.g. first container and/or second container). . However, it is also conceivable that a circulation, i.e. a relocation of the spray liquid between the first container and the second container or vice versa, also takes place.

The mounted field sprayer includes a first container for spray liquid to be distributed, which is mounted on a frame construction. The add-on container comprises a support structure with a second container for spray liquid to be distributed attached thereto. In particular, liquid agricultural plant protection agents, fertilizers and/or the like are expediently used as the spray liquid.

To distribute the spray liquid, the mounted field sprayer includes a spray boom that extends in a large working width (e.g. 12 meters, 21 meters or more) transversely to a direction of travel of the mounted field sprayer and has distribution elements (e.g. spray nozzles or nozzle assemblies) arranged at regular intervals (e.g. 25 cm or 50 cm) from one another Spray nozzles) which are operatively connected to the first container and/or the second container by means of the liquid line system, i.e. in particular are fluidically connected. The spray nozzles serve in particular to atomize the spray liquid.

The spray boom expediently comprises in particular a middle part and side parts mounted on the left and right of the middle part by means of pivot axes which are preferably oriented upright in the working position.

According to the invention, it can expediently be provided in particular that the conveying and/or rearranging takes place exclusively by means of a liquid pump forming the conveying device.

According to a preferred embodiment variant, the liquid pump can be a liquid pump that can be operated (i.e. operated during operation) exclusively with a hydraulic and/or electrical energy supply. Alternatively, the liquid pump can also be a liquid pump that can be operated with a mechanical power source, such as a cardan shaft.

According to a preferred embodiment of the invention, it can be provided that the liquid pump is a piston diaphragm pump or a centrifugal pump.

The liquid pump can have a suction side and a pressure side, which can each be operatively connected to the liquid line system.

In order to only need one liquid pump to convey the spray liquid, according to a further aspect of the invention it can be provided that the liquid pump has a capacity of at least 200 liters per minute or at least 300 liters per minute or at least 400 liters per minute or at least 500 liters per minute having. In particular, it can be provided that the liquid pump has an output of 550 liters per minute.

According to a preferred embodiment, it can be provided that a centrifugal pump with a capacity of 550 liters per minute is preferably used as the liquid pump.

The at least one liquid pump preferably has a motor that can be operated exclusively with a hydraulic and/or electrical energy supply and at least one impeller (e.g. impeller) coupled to the motor.

In addition, the liquid pump can be assigned in particular to the mounted field sprayer, preferably assigned to a frame structure of the mounted field sprayer, or attached to the frame structure of the mounted field sprayer.

The amount of spray liquid conveyed by means of the liquid pump can be measured by means of flow measurement, ie flow control, or by means of pressure control, for which purpose appropriate measuring devices or sensors can be installed in the liquid line system.

According to the invention it can be provided that the first container is assigned to a frame structure of a mounted field sprayer and the second container is assigned to a support structure of a mounted container. In particular, the first container and the second container are spaced apart (e.g., front and rear) mounted on a tractor.

In order to achieve optimal weight distribution for a tractor, according to a preferred embodiment of the invention, it can be provided that the mounted field sprayer has a frame construction with an upper coupling point and two lower coupling points, in particular for the coupling (i.e. connection) with the upper link and the lower links of the in particular rear-side three-point connection (e.g. three-point power lift) of a tractor.

As an alternative or in addition to this, it can be provided that the attachment container is designed in particular as a front attachment and has a support structure which has an upper coupling point and/or one or two lower coupling points, in particular for coupling to a towing device and/or three-point connection, in particular a front-side attachment device, of a tractor.

The upper coupling point and the two lower coupling points are preferably designed and arranged in relation to one another in such a way that they form a commercially available three-point connection or three-point hitch, in particular a three-point hitch for connection to a three-point connection or a three-point power lift in accordance with ISO 730-1, which Three-point linkage is appropriate part of a tractor. Alternatively or additionally, it would also be conceivable in the context of the invention that the upper coupling point and/or the lower coupling points are designed in such a way that they can be coupled to a coupling device (e.g. coupling triangle) and in turn the three-point connection of a tractor can be coupled to the coupling device. According to the present description, such a coupling of the mounted field sprayer to a tractor is also included.

It should be pointed out that the two lower coupling points can also be formed by a common shaft. Provision can also be made for the frame construction to have a plurality of lower coupling points and/or upper coupling points in order to create, for example, three-point connections with different connection categories. According to the present description, the definite lower coupling point and upper coupling point each relate to the rearmost lower coupling point or upper coupling point in relation to the direction of travel.

According to a further aspect of the invention, it can be provided that the liquid line system has at least one valve for optional operative connection, the valve being switchable and/or controllable, in particular electrically and/or pneumatically, in particular being switchable by means of a control device. The switching and/or controlling by means of the control device can take place manually and/or automatically, e.g. based on data from measuring devices and/or sensors and/or sensor devices (e.g. flow sensors, filling level sensors and/or the like).

The valve can expediently be switched between a closed position and an open position, wherein in the context of the invention, an open position according to the invention also includes positions in addition to a complete opening, in which there is no complete opening, but liquid passage is still possible compared to the closed position, this position being expedient can be controlled by a control device.

In order to achieve a defined rearrangement (e.g. circulation) of the spray liquid in the liquid line system, it can also alternatively or additionally be provided that the liquid line system has at least two valves, in particular downstream of the pressure side of the liquid pump, with the at least two valves forming a valve node and the control device being set up for this purpose is to switch and/or control the at least two valves in such a way that they form a flow divider, in particular a flow divider with a definable and/or defined dividing factor (e.g. division 50% into 50% or 20% into 80% or 100 liters into 200 liters or similar). The partial factor can also be defined, for example, by a target amount of spray liquid that is required for distribution to the distribution elements, which means that it can be done in such a way that a required target amount of spray liquid that is to be conveyed to the distribution elements is maintained. Switching and/or controlling by means of the control device can in turn be manual and/or automated, e.g. based on data from measuring devices and/or sensors and/or sensor devices (e.g. flow sensors, filling level sensors and/or the like).

In order to improve the rearrangement even further, provision can also be made for the partial factor to be definable and/or defined as a function of an operating mode and for the partial factor to define in particular which flow rate of spray liquid should pass through the respective valve. For example, the partial factor can vary between field work, in which the spray liquid is distributed by means of the distribution elements, and a transport journey, in which the spray liquid is relocated, i.e. circulated, for example, between the first container and the second container.

The operating mode and/or the partial factor can be specified manually, for example by an operator ben and/or be carried out automatically by means of the control device, for example based on a target quantity of spray liquid that is required for the distribution.

It is also possible that, depending on the operating mode, a quantity of spray liquid conveyed by means of the conveying device and/or a system pressure generated by a conveying device in the liquid line system is changed.

According to an alternative or supplementary embodiment variant, it can be provided that at least the first container and/or the second container is assigned an agitator for mixing the spray liquid contained in the first container and/or the second container, with the mode of operation (e.g. on or switch off, variable speed, and/or the like.) of the agitator can be switched and/or controlled by means of the control device. According to a development of the invention, it can be provided that the control device is set up to vary the partial factor depending on the mode of operation of the agitator and/or to vary the mode of operation of the agitator depending on the partial factor.

The valve, or several valves, can be a directional valve (e.g. switchable) and/or a proportional valve (e.g. controllable) and/or a quantity control valve (e.g. controllable). It is alternatively or additionally possible that at least one valve is designed as a check valve.

In order to be able to selectively convey spray liquid from the first container and/or the second container to the distribution elements, it is possible, according to a development of the invention, for the liquid line system to have a liquid line node with at least two valves, each with a closed position and an open position for selective active fluid connection of the first Container and/or the second container and/or the distribution elements with the conveying device, in particular with the liquid pump.

In order to achieve a high degree of efficiency of the liquid pump, it can be provided according to a development of the invention that the first container and/or the second container are connected to a suction side of the liquid pump by means of the liquid line system and that the distribution elements are connected to a pressure side of the liquid pump by means of the liquid line system are connected.

In order to achieve a simply and flexibly constructed liquid line system, according to a development of the invention it can be provided that the liquid line system has a first liquid line for connecting the first container to a suction side of the liquid pump.

Alternatively or additionally, provision can be made for the liquid line system to have a second liquid line for connecting the first container to a pressure side of the liquid pump.

Alternatively or additionally, it can be provided that the liquid line system has a third liquid line for connecting the second container to a suction side of the liquid pump.

Alternatively or additionally, it can be provided that the liquid line system has a fourth liquid line for connecting the second container to a pressure side of the liquid pump.

Alternatively or additionally, it can be provided that the liquid line system has a fifth liquid line for connecting the distribution elements to a pressure side of the liquid pump.

In addition, it can be provided that at least the first liquid line and/or the second liquid line and/or the third liquid line and/or the fourth liquid line and/or the fifth liquid line has a valve for the selective operative fluid connection of the first container and/or the second Container and / or the distribution elements is associated with the pressure side of the liquid pump and / or the suction side of the liquid pump.

It can also be provided here that the valve can be switched and/or controlled in particular electrically and/or pneumatically, in particular can be switched and/or controlled with a control device. The valve can expediently be switched between a closed position and an open position, in particular as described above.

In order to be able to maintain a desired filling level in the first container and/or in the second container, it is conceivable according to a development of the invention that the first container and the second container each have a sensor device that detects a filling level (e.g. capacitive measuring device, float switch and/or etc.) and that the conveying device, in particular the liquid pump and/or the valves assigned to the liquid line system can be switched and/or controlled by means of a control device on the basis of a respective fill level. The The valve can therefore be switched between a closed position and an open position or controlled to an intermediate position that changes the flow rate, and the liquid pump can also be switched between an activated and a deactivated state or controlled to a position that changes the delivered quantity.

The control device is set up so that the liquid pump and/or the valves can be actuated using various strategies, in particular in such a way that a defined differential fill level is generated between the first container and the second container and/or in such a way that a maximum rearrangement of the Spray liquid of the first container takes place in the second container or vice versa. Alternatively or additionally, this takes place in particular in such a way that a target quantity of spray liquid is maintained at the distribution elements.

The respective strategy can be selected and/or entered, in particular by means of an operating device (e.g. mobile end device, terminal and/or the like) that is operatively connected to the control device, by an operator and/or automatically. In addition, a strategy can in turn be changed depending on an operating mode and/or be defined by an operating mode. For example, an operating mode can also be and/or define a strategy.

In order to prevent the first container and/or the second container from overflowing, it can be provided according to a development of the invention that the liquid line system has an overflow line for connecting the first container to the second container, with the overflow line preferably being located in an upper area in each case the first container and the second container opens. In particular, no valves and/or switching elements or the like are assigned to the overflow line in order to prevent clogging or the like.

In order to create a field sprayer system that can be used flexibly, with which a wide variety of spray liquids can be applied, it is possible, according to a development of the invention, for the field sprayer system to include a third container for spray liquid to be distributed, which can be connected by means of the liquid line system to the first container and the second container and which is operatively (ie fluidly) connected to the liquid pump forming the delivery device.

The third container can expediently be assigned in particular to the mounted field sprayer, that is to say to a frame construction of the mounted field sprayer.

In order to only need one liquid pump even with three containers, according to a development of the invention it can be provided that the liquid pump is set up to spray liquid from the first container and/or the second container and/or at the same time (e.g. simultaneously together and/or the like). of the third container to the distribution elements by means of the liquid line system and/or to transfer spray liquid from the first container to the second container by means of the liquid line system and/or to transfer the spray liquid by means of the liquid line system from the second container to the first container and /or to relocate the third container and/or to relocate spray liquid from the third container into the first container and/or the second container by means of the liquid line system. Alternatively or additionally, this takes place in particular in such a way that a target quantity of spray liquid is maintained at the distribution elements.

According to a preferred embodiment variant, it can be provided that the field sprayer system has a first container, a second container and a third container, with an identical first spray liquid being carried in the first container and in the second container and a second spray liquid different from the first spray liquid being carried in the third container will.

The first container and the third container are preferably spatially assigned to the mounted field sprayer and are operatively connected to the liquid line system with the second container and/or the distribution elements and/or the feed pump.

For external filling of the first container and/or the second container, according to a development of the invention, a suction connection can be assigned to the liquid line system, the suction connection being operatively connected by means of the liquid line system in particular to a suction side of the liquid pump.

In order to achieve a flexible liquid line system, provision can also be made for liquid lines to be designed both as pressure lines and as suction lines.

According to a further development of the invention, it is possible for a separation point to be provided in the liquid line system between the first container and the second container, expediently for selectively coupling the first container to the second container by means of the liquid line system. According to the invention, by using only one liquid pump, all functionalities are also available when only the first tank is used, ie operation of the mounted field sprayer is possible at any time even without a mounted tank and in particular without major conversion measures.

It should be noted that all features relating to the first container and/or the second container can also be applied to a third container and/or further containers.

The control device can have a computer unit, an on-board computer and/or the like and also have a control circuit and/or regulating circuit, in particular a hydraulic and/or pneumatic and/or electrical control circuit and/or regulating circuit, with the control circuit and/or regulating circuit expediently being used for hydraulic and / or pneumatic and / or electrical signal and / or command transmission is formed. Which signal and/or command transmission can also take place wirelessly (e.g. via WLAN). A BUS system can also be used here.

In the context of the invention, the term control device includes, in particular, all of the components for signal and/or command transmission. Accordingly, computer units, CPUs and/or the like are also included. Correspondingly, data processing devices integrated in the respective sensors, or sensor units, or sensor arrangements are also included. It should also be pointed out that the sensors/measuring devices/detection devices etc. can each be used as feedback for a control and/or regulation variable.

It should also be pointed out that the terms "control" and "regulate" or "control device" and "regulation device" can refer to electronic and/or pneumatic and/or hydraulic controls or regulations that, depending on the training, control tasks and/or can take on regulatory tasks. Even if the term “control” is used here, it can also appropriately include “rules”. Likewise, when using the term “rules” a “control” can also be included.

To avoid repetition, features disclosed in connection with the field sprayer system should also apply and be claimable according to the method disclosed. The aforementioned aspects and features and embodiment variants according to the invention, in particular with regard to the field sprayer system, therefore also apply to the method and can be freely combined with one another in any way. The same applies in reverse, so that all aspects, features and design variants according to the invention that are disclosed in connection with the method are also disclosed for the field sprayer system and can be claimed accordingly.

In order to achieve the objects, the invention also includes a method for conveying and/or relocating spray liquid.

The method according to the invention comprises providing a field sprayer system with a first container, assigned to a mounted field sprayer, for spray liquid to be distributed and a second container, preferably assigned to a mounted container, for spray liquid to be distributed, the mounted field sprayer having a sprayer boom with distribution elements for the distribution of the spray liquid and wherein the first container, the second container and the distribution elements are functionally connected by means of a liquid line system and the spray liquid is conveyed and/or relocated through the liquid line system by means of a conveying device, the liquid line system being designed and set up in such a way that the conveying and/or relocation by means of a liquid pump forming the conveying device.

The method also includes conveying spray liquid from the first container and/or the second container at the same time (e.g. at the same time, jointly and/or the like) by means of the liquid line system to the distribution elements. This can in particular also be done selectively, for example by conveying the first container or the second container or the first container and the second container.

According to a development of the method, this can also include a simultaneous transfer of spray liquid by means of the liquid line system from the first container to the second container and/or from the second container to the first container.

According to a further development of the method, it is also conceivable for the field sprayer system to have a third container, it also being possible for the liquid pump to be set up to spray liquid from the first container and/or the second at the same time (e.g. simultaneously and/or the like). To promote container and / or the third container by means of the liquid line system to the distribution elements and / or spray liquid by means of the liquid line system to transfer from the first container to the second container and/or to transfer the third container and/or to transfer spray liquid from the second container to the first container and/or the third container by means of the liquid line system and/or to transfer spray liquid by means of the liquid line system from the third container to to rearrange the first container and/or the second container.

• 1A eine Perspektivansicht eines Traktors mit einer daran angebauten Anbaufeldspritze und einem daran angebauten Anbaubehälter, wobei die Anbaufeldspritze ein Spritzgestänge in einer zusammengeklappten Transportposition aufweist,
• 1B eine Perspektivansicht gemäß der 1A, wobei die Anbaufeldspritze ein Spritzgestänge in einer ausgeklappten Arbeitsposition aufweist,
• 1C eine Seitenansicht gemäß der 1A,
• 2A eine Perspektivansicht einer Anbaufeldspritze sowie eine schematisch dargestellte Dreipunktverbindung eines Traktors, mit einer mit dieser verbundenen Koppeleinrichtung, wobei die Dreipunktverbindung in einem ersten Abstand zur Anbaufeldspritze angeordnet ist,
• 2B eine Perspektivansicht gemäß der 2A wobei die Dreipunktverbindung in einem zweiten Abstand zur Anbaufeldspritze angeordnet ist,
• 3A eine Perspektivansicht einer Anbaufeldspritze mit einer Rahmenkonstruktion, einem Behälter, einem Spritzgestänge und einer Flüssigkeitspumpe,
• 3B eine Seitenansicht einer Anbaufeldspritze gemäß der 3A,
• 4A eine Vorderansicht einer Ausführungsvariante einer Flüssigkeitspumpe,
• 4B eine Schnittansicht einer Flüssigkeitspumpe gemäß der 4A
• 5A - 5C Schematische Draufsichten einer Anbaufeldspritze mit verschiedenen Einbaupositionen einer Flüssigkeitspumpe,
• 5D eine Schematische Vorderansicht einer Feldspritze mit einer Flüssigkeitspumpe
• 6 ein Flüssigkeitsschema eines Feldspritzensystem mit einem Flüssigkeitsleitungssystem und zwei Mehrwegehähnen,
• 7 ein Flüssigkeitsschema eines Feldspritzensystem mit einer Flüssigkeitspumpe und mit durch Ventile gebildeten Ventilknoten.

Further details and advantages of the invention are described below with reference to the accompanying drawings. The proportions of the individual elements to one another in the figures do not always correspond to the real proportions, since some forms are shown in simplified form and other forms are shown enlarged in relation to other elements for better illustration. Show it:

• 1A a perspective view of a tractor with a mounted field sprayer and a mounted container mounted thereon, the mounted field sprayer having a spray boom in a folded transport position,
• 1B a perspective view according to FIG 1A , wherein the mounted field sprayer has a spray boom in an unfolded working position,
• 1C a side view according to FIG 1A ,
• 2A a perspective view of a mounted field sprayer and a schematically illustrated three-point connection of a tractor with a coupling device connected thereto, the three-point connection being arranged at a first distance from the mounted field sprayer,
• 2 B a perspective view according to FIG 2A wherein the three-point connection is arranged at a second distance from the mounted field sprayer,
• 3A a perspective view of a mounted field sprayer with a frame structure, a container, a spray boom and a liquid pump,
• 3B a side view of a mounted field sprayer according to 3A ,
• 4A a front view of a variant of a liquid pump,
• 4B a sectional view of a liquid pump according to FIG 4A
• 5A - 5C Schematic top views of a mounted field sprayer with different installation positions of a liquid pump,
• 5D a schematic front view of a field sprayer with a liquid pump
• 6 a fluid diagram of a field sprayer system with a fluid line system and two multi-way valves,
• 7 a liquid diagram of a field sprayer system with a liquid pump and with valve nodes formed by valves.

The in the 1 until 7 The embodiments shown correspond at least in part, so that similar or identical parts are provided with the same reference numbers and, for their explanation, reference is also made to the description of the other embodiments or figures in order to avoid repetition. The illustrated embodiments only represent examples of how the field sprayer system according to the invention and the method according to the invention can be designed and implemented and do not represent any final limitation.

the 1A and 1B show each in a perspective view, as well as the 1C in a side view, a mounted field sprayer 10 and a mounted container 12 mounted on a tractor 14. Wherein the mounted field sprayer 10 each has a spray boom 16, which according to the 1A and 1C is shown in a folded transport position and which according to the 1B is shown in an unfolded working position extending in a large working width transversely to the direction of travel FR.

The mounted field sprayer 10 comprises a container attached to a frame structure 18, or first container 22 for spray liquid to be distributed. The add-on container 12 comprises a support structure 20 with a second container 24 for spray liquid to be distributed attached thereto. The first container 22 and the second container 24 are thus mounted on a tractor 14 at a distance from one another.

In particular, liquid agricultural plant protection agents, fertilizers and/or the like are expediently used as the spray liquid.

To distribute the spray liquid, distribution elements 28, in particular in the form of spray nozzles, are attached to the spray boom 16 at regular intervals from one another, which are expediently functionally connected to the first container 22 and/or the second container 24, in particular by means of a liquid line system (not shown here), in particular are fluidly operatively connected.

In a working position, the spray boom 16 has a large working width of, for example, 12 meters; 21 meters or more. The spray boom 16 also includes a middle part 30 and side parts 34 mounted on the left and right of the middle part 30 by means of pivot axes 32 that are oriented upright in the working position.

In order to achieve an optimized weight distribution on a tractor 14, it is provided according to the exemplary embodiments that the mounted field sprayer 10 has a frame construction 18 with an upper coupling point 36 and two lower coupling points 38, in particular for the coupling to the upper link 40 and the lower links 42 of the rear three-point connection 44 (eg three-point linkage) of a tractor 14 has.

In addition to this, it is also provided that the attachment container 12 is designed as a front attachment and a support structure 20 which has an upper coupling point 36 and/or one or two lower coupling points 38, in particular for coupling to a front towing device (e.g. bolt connection, two-point connection) and/or Has three-point linkage 44 of a tractor 14 .

Additional features of a mounted sprayer 10 and a three-point linkage 44 are apparent from the perspective views of FIGS 2A and 2 B out. The upper coupling point 36 and the two lower coupling points 38 are designed and arranged in relation to one another such that they form a commercially available three-point connection 44 or three-point hitch, in particular a three-point connection for connection to a three-point power lift in accordance with ISO 730-1. According to the 2 it is provided that the upper coupling point 36 and/or the lower coupling points 38 are designed in such a way that they can be coupled to a coupling device 46 (e.g. coupling triangle) and, in turn, the three-point connection 44 of a tractor 14, which is shown in a greatly simplified embodiment variant, with which Coupling device 46 can be coupled. According to the present description, such a coupling of the mounted field sprayer 10 or the mounted container 12 with a tractor 14 is also included.

The upper coupling point 36 and the two lower coupling points 38 are formed on the frame construction 18 by receptacles for a bolt of a coupling device 46, for example. Other design variants of an upper coupling point 36 and/or the two lower coupling points 38 would also be conceivable or imaginable.

From the 2A and 2 B a method for attaching a mounted field sprayer 10 to a tractor 14 is also illustrated. What is expediently achieved in particular is that dangerous situations for an operator due to restricted space when attaching the mounted field sprayer 10 to a tractor can be avoided. This is according to the 2A and 2 B achieved by no cardan shaft, that is, no mechanical power source between mounted field sprayer 10 and tractor 14 must be installed. Thus, it is provided in particular that a mounted on the field sprayer 10, according to the 2A and 2 B greatly simplified liquid pump 48, by a liquid pump 48 that can be operated exclusively with a hydraulic and/or electrical energy supply, in particular a power source (e.g. articulated shaft) of a tractor 14 that can be operated without mechanical movements (e.g. rotary movements).

How from the 2A and 2 B It is thus clear that the liquid pump 48 requires in particular only one or more line connections 52 (e.g. electrical lines, hydraulic lines and/or the like) to an energy supply 54 (e.g. energy supply unit such as a motor, pump or the like) which is shown here in greatly simplified form. a tractor 14.

In order to avoid dangerous situations when attaching the mounted field sprayer 10 to a tractor 14 for an operator, according to 2A First, a first distance D1 is created between the tractor 14 and the mounted field sprayer 10, with the three-point connection 44 of the tractor being connected to the coupling device 46 and the hydraulic and/or electrical energy supply 54 being connected to the liquid pump 48, in particular by means of a line connection 52, he follows. This takes place with the first distance D1 being maintained at least to a large extent. In addition, the lines of the line connection 52 are designed to be correspondingly long.

After connecting the three-point connection 44 with the coupling device 46 and the power supply 54, according to the 2 B the generation of a second distance D2 of the tractor 14 to the mounted field sprayer 10, in particular by bringing the tractor 14 up to the mounted field sprayer 10, with the coupling device 46 connected to the tractor 14 also being coupled to the upper coupling point 36 and the two lower coupling points 38 of the mounted field sprayer 10 done.

The first distance D1 and the second distance D2 are increased by a distance in the direction of travel FR of the lower link 42 of the tractor 14 the lower coupling points 38 of the mounted field sprayer 10, this being done in such a way that a first distance D1 is greater than a second distance D2, and in particular in such a way that a first distance D1 is at least 10 cm or at least 20 cm or at least 50 cm. Where according to the 2 B the second distance D2 is in particular 0 cm.

Further details of a mounted field sprayer 10 can be seen from the perspective view 3A and the side view 3B. The mounted field sprayer 10 each includes a frame structure 18 with a container 22 (e.g. first container 22) for spray liquid to be distributed, a spray boom 16 and a liquid pump 48. The liquid pump 48 is used to convey spray liquid by means of a liquid line system from the container 22 to the spray boom 16 distribution elements 28.

In order to achieve a mounted field sprayer with an optimized position of the center of gravity, it is provided that the liquid pump 48 is a liquid pump 48 that can be operated exclusively with a hydraulic and/or electrical energy supply 54 (i.e. operated during operation of the mounted field sprayer 10), in particular one without mechanical movements (e.g Rotational movement) executive power source (eg cardan shaft) of a tractor (not shown here) operated liquid pump 48 is. It would also be conceivable for the liquid pump 48 to be a liquid pump 48 operated by means of a cardan shaft.

The liquid pump 48 is attached to the frame structure 18 of the mounted field sprayer 10, in particular in this way, ie according to the exemplary embodiments far below, in order to create an optimized center of gravity for the container 22, with the liquid pump 48 here being able to have a wide variety of orientations, and according to the 3A and 3B is oriented transversely to the direction of travel FR.

In order to achieve an optimized, that is to say in particular a low-lying focus of the mounted field sprayer 10, it is 3B possible or provided that a lower edge 64 of the container 22 is arranged below the two lower coupling points 38 . Alternatively, however, it would also be possible for a lower edge 64 of the container 22 to be arranged above the two lower coupling points 38 in relation to the direction of travel FR and for the resulting vertical container distance BA to be a maximum of 50 cm or a maximum of 20 cm or a maximum of 10 cm or a maximum of 5 cm and/or that a lower edge 64 of the container 22 is arranged at least largely at the same level as the lower coupling points 38 relative to the direction of travel FR. The lower edge 64 can be formed, for example, by an outlet opening of the container 22 .

A variant of a liquid pump 48 is from the front view of 4A as well as from the sectional view of the 4B out.

The liquid pump 48 is set up in particular to ensure that any delivery and/or rearrangement (e.g. circulation) of spray liquid in the liquid line system is carried out by means of it and no further liquid pump 48 is absolutely required on the mounted field sprayer 10 .

The liquid pump 48 according to the 4A and 4B is designed as a centrifugal pump. However, it would also be conceivable, for example, to use piston membrane pumps or the like. So that only one liquid pump 48 is required, for example to convey and transfer the spray liquid in the liquid line system, it is provided in particular that the at least one liquid pump 48 has an output of at least 200 liters per minute, or at least 300 liters per minute, or at least 400 liters per minute, or at least 500 liters per minute. According to the exemplary embodiments, provision can be made in particular for the at least one liquid pump 48 to have an output of 550 liters per minute.

As seen from the front view of the 4A and the sectional view of the 4B shows that liquid pump 48 has a motor 56 that can be operated exclusively with a hydraulic and/or electrical power supply and at least one drive shaft 58 coupled to motor 56, drive shaft 58 preferably having a pump wheel 60 (e.g. impeller) and/or having a pump wheel 60 (e.g. impeller) is coupled (see 4B) .

In order to achieve the best possible installation position of the liquid pump 48 on the mounted field sprayer 10, in particular in order to achieve a good center of gravity of the mounted field sprayer 10, it can have a wide variety of installation positions or orientations. Where options for installation positions from the schematic plan views of 5A until 5C and from the schematic front view of 5D emerge. A highly simplified view of a container 22, an upper coupling point 36, two lower coupling points 38 and a liquid pump 48 are shown in each case.

It should be noted that in the 5A until 5D center line 62 outlined in each case, in particular an orientation of the drive shaft 58 (cf. 4B) corresponds and being an Orientie tion of the drive shaft 58 each defines a longitudinal extension of the liquid pump 48 .

How from the 5A and 5B shows that the liquid pump 48 has a longitudinal extension, which longitudinal extension is defined by an orientation of a drive shaft 58 rotating in the liquid pump 48, the liquid pump 48 relative to a direction of travel FR of the mounted field sprayer 10 with its entire longitudinal extension between the two lower coupling points 38 and at least largely (cf. 5A and 5B) is arranged with its longitudinal extent laterally (for example on the left) next to the upper coupling point 36 .

An alternative arrangement to this is shown in FIG 5C wherein the liquid pump 48 is arranged relative to the direction of travel FR of the mounted field sprayer 10 over its longitudinal extension at least in sections next to (ie outside of) one of the two lower coupling points 38 . It would also be conceivable for the liquid pump 48 to be arranged with its entire length outside of one of the two lower coupling points 38 .

It is also conceivable that the liquid pump 48 is oriented at a first angle α to a direction of travel FR, with the first angle α being at least 5° or at least 25° or at least 45° (cf. 5A) and wherein the first angle α is a maximum of 175° or a maximum of 155° or a maximum of 135°, in particular essentially 90° (cf. 5B) amounts to.

An alternative or supplementary orientation comes from the 5D wherein the at least one liquid pump 48 is oriented from top to bottom relative to a plane (e.g. formed by a front side of container 22) perpendicular to the direction of travel FR of mounted field sprayer 10 from an upper coupling point 36 of mounted field sprayer 10 to an outer end of mounted field sprayer 10 is (cf. 5D ), but an at least largely horizontal orientation would also be conceivable and/or an orientation from bottom to top.

Variants of liquid line systems 100, or field spraying systems 110 go from the liquid diagrams 6 and 7 out. where the 6 two liquid line nodes 130 which are formed by multi-way valves 66 and wherein in the 7 the multi-way cocks 66 have been replaced by liquid line nodes 130 each having at least two valves 120 .

The field sprayer system 110 comprises a first container 22 for spray liquid to be distributed, which is assigned in particular to a mounted field sprayer 10, and a second container 24 for spray liquid to be distributed, which is assigned in particular to a mounted container 12 (cf. 1A - 1C ). The field sprayer system 110 or the mounted field sprayer 10 includes a spray boom 16 with distribution elements 28 (eg spray nozzles) for the distribution of the spray liquid. For this purpose, the distribution elements 28 preferably produce a downwardly directed spray cone and, for example, atomize the spray liquid.

The first container 22, the second container 24 and the distribution elements 28 are functionally (e.g. fluidly) connected by means of a liquid line system 100. The spray liquid is also conveyed and/or relocated (e.g. circulated between the first container 22 and the second container 24) by means of a conveying device 50 through the liquid line system 100 . The liquid line system 100 is designed and set up in such a way that the conveying and/or relocation takes place by means of a liquid pump 48 forming the conveying device 50 .

The field sprayer system 110 according to the exemplary embodiments is in particular a closed field sprayer system 110, so that the liquid line system 100 and the liquid pump 48 mean that the first container 22 and the second container 24 act like a single container.

The liquid pump 48 is set up in particular to convey spray liquid from the first container 22 and/or the second container 24 to the distribution elements 28 at the same time (i.e. simultaneously, jointly and/or the like) by means of the liquid line system 100 . Alternatively or additionally, it can be provided that the liquid pump 48 is set up to simultaneously transfer spray liquid from the first container 22 to the second container 24 and/or from the second container 24 to the first container 22 by means of the liquid line system 100.

The liquid pump 48 has a suction side 140 and a pressure side 150 which are each operatively connected to the liquid line system 100 . Whereby the flow direction of the spray liquid in the liquid line system 100 is defined by the suction side 140 or the pressure side 150, which according to the 6 and 7 with arrows oriented in the direction of the liquid pump 48 or away from the liquid pump 48.

The amount of spray liquid conveyed by the liquid pump 48 can be adjusted by means of through flow measurement, i.e. flow control or by means of pressure control, for which purpose appropriate sensors 200 (e.g. pressure sensors, volume flow sensors and/or the like) can be installed in the liquid line system 100 and the flow control or the pressure control can take place in a manner known per se.

In order to create a field sprayer system 110 that can be used flexibly, according to the exemplary embodiments of FIG 6 and 7 provided that the field sprayer system 110 comprises a third container 26 for spray liquid to be distributed, which is operatively connected by means of the liquid line system 100 to the first container 22 and the second container 24 and the liquid pump 48 forming the delivery device 50 .

To even with three containers 22; 24; 26 requires only one liquid pump 48, provision is made for the liquid pump 48 to be set up to simultaneously (e.g. simultaneously, jointly and/or the like) spray liquid from the first container 22 and/or the second container 24 and/or the third container 26 to the distribution elements 28 by means of the liquid line system 100 and/or to transfer spray liquid from the first container 22 to the second container 24 by means of the liquid line system 100 and/or to transfer the third container 26 and/or to transfer spray liquid by means of the liquid line system 100 from the second container 24 into the first container 22 and/or the third container 26 and/or to transfer spray liquid from the third container 26 into the first container 22 and/or the second container 24 by means of the liquid line system 100 .

It is possible for an identical first spray liquid to be carried in the first container 22 and in the second container 24 and for a second spray liquid which differs from the first spray liquid to be carried in the third container 26 .

At least two liquid lines are combined to form a liquid line node 130 on a suction side 140 and a pressure side 150, wherein according to FIG 6 these liquid line nodes 130 are connected in a manner known per se by means of a multi-way valve 66. In contrast, according to the 12 the liquid line nodes 130 are formed by at least two valves 120. The valves 120 can preferably be switched and/or controlled electrically and/or pneumatically by means of a control device 170 . How from the 6 and 7 As can be seen, the liquid line nodes 130 can each comprise and/or have a multiplicity of liquid lines.

It should be noted that according to the 7 For the sake of clarity, only the signal lines 180 (dashed lines) from some components (e.g. valves 120) are routed to the control device 170, with the signal lines 180 of course also being connected from other valves 120 and/or from other components of the field sprayer system 110 in a manner known per se to the Control device 170 coupled and / or signal-connected.

In order to enable easy filling of the first container 22 and/or the second container 24 and/or the third container 26, it is provided according to the exemplary embodiments that the liquid line node 130 has a suction connection 190 (e.g. filling connection, suction valve and/or the like.). is assigned to a valve 120 and/or a check valve 210, wherein the intake port 190 is operatively connected to the first container 22, the second container 24, the third container 26 and the delivery device 50 by means of the liquid line system 100, and wherein the valve 120 and/or check valve 210 can be switched and/or controlled by means of control device 170.

The valves 120 can expediently be switched between a closed position and an open position, with an open position according to the invention being able to include, in addition to a complete opening, also positions in which there is no complete opening, but liquid passage is still possible compared to the closed position, with this position expediently being controlled by means of a Control device 170 is controllable.

At least one valve 120 can be a directional control valve (eg switchable) and/or a proportional valve (eg controllable) and/or a quantity control valve (eg controllable). It is alternatively or additionally possible that at least one valve 120 is designed as a check valve 210, which according to the 6 and 7 is shown as an example.

According to the exemplary embodiments, the first container 22 and the second container 24 are assigned an agitator 220 for mixing the spray liquid contained in the first container 22 and in the second container 24, with the functionality (e.g. switching on or off, variable speed and/or etc.) of the agitator 220 can be switched and/or controlled by means of the control device 170.

The liquid line node 130 according to the 7 comprises a switchable and/or controllable valve 120 by means of a control device 170 for the optional fluid connection of the first container 22 to the conveyor device 50. In addition the liquid line node 130 comprises a valve 120, which can be switched and/or controlled by means of a control device, for the optional fluid connection of the second container 24 with the delivery device 50.

It is possible for the liquid line node 130 or the valves 120 or the multi-way tap 66 to have connection points 70 with different cross sections.

The first container 22 and the second container 24 are connected to a suction side 140 and/or a pressure side 150 of the liquid pump 480 by means of the liquid line system 100, but the distribution elements 28 are only connected to a pressure side 150 of the liquid pump 48 by means of the liquid line system 100.

Liquid line system 100 includes a first liquid line 230 for connecting first container 22 to a suction side 140 of liquid pump 48, liquid line system 100 also includes a second liquid line 240 for connecting first container 22 to a pressure side 150 of liquid pump 48, the liquid line system also includes 100 has a third liquid line 250 for connecting the second container 24 to a suction side 140 of the liquid pump 48, and the liquid line system 100 also includes a fourth liquid line 260 for connecting the second container 24 to a pressure side 150 of the liquid pump 48. It is also provided that the liquid line system 100 has a fifth liquid line 270 for connecting the distribution elements 28 to a pressure side 150 of the liquid pump 48 .

The liquid lines 230; 250 of the suction side 140 form a liquid line node 130 and the liquid lines 240; 260; 270 of the pressure side 150 form a liquid line node 130.

The first liquid line 230, the second liquid line 240, the third liquid line 250, the fourth liquid line 260 and the fifth liquid line 270 each have a valve 120 for the selective operative fluid connection of the first container 22 and/or the second container 22 and/or the distribution elements 28 associated with the pressure side 150 of the liquid pump 48 and/or the suction side 140 of the liquid pump 48 .

In order to be able to maintain a desired filling level in the first container 22 and/or in the second container 24, it is conceivable according to a development of the invention that the first container 22 and the second container 24 each have a sensor device 280 that detects a filling level (e.g. capacitive measuring device, float switch and/or the like.) and that the delivery device 50, in particular the liquid pump 48 and/or that the liquid line system 100 assigned valves 120 can be switched and/or controlled by means of a control device 170 based on a respective fill level. The control device 170 is set up so that the liquid pump 48 and/or the valves 120 can be actuated using various strategies, in particular in such a way that a defined differential filling level is generated between the first container 22 and the second container 24 and/or in such a way that that a maximum rearrangement of the spray liquid of the first container 22 takes place in the second container 24 or vice versa.

In order to prevent the first container 22 and/or the second container 24 from overflowing, it is provided that the liquid line system 100 has an overflow line 290 for connecting the first container 22 to the second container 24, the overflow line 290 preferably being located in an upper region in each case the first container 22 and the second container. In particular, no valves and/or switching elements or the like are assigned to the overflow line 290 in order to prevent clogging or the like.

Although the invention has been described with reference to specific embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents substituted without departing from the scope of the invention. In addition, many modifications can be made without leaving the associated area. Accordingly, the invention should not be limited to the disclosed embodiments, but should include all embodiments falling within the scope of the appended claims. In particular, the invention also claims protection for the subject matter and the features of the subclaims independently of the claims referred to.

Reference List

10

mounted sprayer

12

grow tank

14

tractor

16

spray boom

18

frame construction

20

support structure

22

first container; container

24

second container

26

third container

28

distribution element

30

center part

32

pivot axis

34

side part

36

upper crosspoint

38

lower crosspoint

40

top link

42

lower link

44

three-point connection

46

coupling device

48

liquid pump

50

conveyor

52

line connection

54

power supply

56

engine

58

drive shaft

60

midline; impeller

64

Deepest point; bottom edge

66

multi-way tap

100

liquid line system

110

sprayer system

120

Valve

130

liquid line node

140

suction side

150

pressure side

160

liquid line

170

control device

180

signal line

190

intake port

200

sensor

210

check valve

220

agitator

230

first liquid line

240

second liquid line

250

third liquid line

260

fourth liquid line

270

fifth liquid line

280

sensor device

290

overflow line

FR

driving direction

B.A

vertical tank spacing

D1

first distance

D2

second distance

a

first angle

QUOTES INCLUDED IN DESCRIPTION

This list of the documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• DE 4312313 A1 [0002, 0003]

Claims (25)

Field sprayer system (110), with a first container (22), assigned to a mounted field sprayer (10), for spray liquid to be distributed and a second container (24), preferably assigned to a mounted container (12), for spray liquid to be distributed, the mounted field sprayer (10) Spray boom (16) with distribution elements (28) for the distribution of the spray liquid and wherein the first container (22), the second container (24) and the distribution elements (28) are functionally connected by means of a liquid line system (100) and the spray liquid is is conveyed and/or relocated through the liquid line system (100) by a conveying device (50), characterized in that the liquid line system (100) is designed and set up in such a way that the conveying and/or relocating is carried out by means of a conveying device (50). Liquid pump (48) takes place. Field sprayer system (110). claim 1 , characterized in that the liquid pump (48) is set up at the same time to convey spray liquid from the first container (22) and/or the second container (24) by means of the liquid line system (100) to the distribution elements (28) and/or by means of spray liquid of the liquid line system (100) from the first container (22) into the second container (24) and/or from the second container (24) into the first container (22). Field sprayer system (110) according to one of the preceding claims, characterized in that the delivery and/or relocation takes place exclusively by means of a liquid pump (48) forming the delivery device (50). Field sprayer system (110) according to one of the preceding claims, characterized in that the liquid pump (48) has an output of at least 200 liters per minute or at least 300 liters per minute or at least 400 liters per minute or at least 500 liters per minute. Field sprayer system (110) according to one of the preceding claims, characterized in that the liquid pump (48) is a piston diaphragm pump or a centrifugal pump. Field sprayer system (110) according to one of the preceding claims, characterized in that the mounted field sprayer (10) has a frame construction (18) with an upper coupling point (36) and two lower coupling points (38), in particular for coupling to the upper link (40) and the lower links (42) of the three-point connection (44) of a tractor (14), in particular at the rear, and/or that the attachment container (12) is designed in particular as a front attachment and a support structure (22) which has an upper coupling point (36) and/or or one or two lower coupling points (38), in particular for coupling to a towing device and/or three-point connection (44) of a tractor (14), in particular on the front. Field sprayer system (110) according to one of the preceding claims, characterized in that the liquid line system (100) has at least one valve (120) for optional physical connection, the valve (120) being switchable and/or controllable, in particular electrically and/or pneumatically , in particular with a control device (170) can be switched and/or controlled. Field sprayer system (110). claim 7 , characterized in that the liquid line system (100) has at least two valves (120) arranged downstream, in particular on the pressure side (150) of the liquid pump (48), the at least two valves (120) forming a liquid line node (130) and the control device ( 170) is set up to switch and/or control the at least two valves (120) in such a way that they form a flow divider, in particular a flow divider with a definable and/or defined dividing factor. Field sprayer system (110). claim 8 , characterized in that the partial factor can be defined and/or defined as a function of an operating mode and the partial factor in particular defines which flow rate of spray liquid is to pass through the respective valve (120). Field sprayer system (110) according to one of the preceding claims, characterized in that the liquid line system (100) has a liquid line node (130) with at least two valves (120), each with a closed position and an open position for the selective functional fluid connection of the first container (22) and / or the second container (24) and/or the distribution elements (28) with the delivery device (50), in particular with the liquid pump (48). Field sprayer system (110) according to any one of the preceding claims, characterized in that the first container (22) and / or the second container (24) by means of the liquid line system (100) with a suction side (140) of Liquid pump (48) are connected and that the distribution elements (28) are connected by means of the liquid line system (100) to a pressure side (150) of the liquid pump (48). Field sprayer system (110) according to one of the preceding claims, characterized in that the liquid line system (100) has a first liquid line (230) for connecting the first container (22) to a suction side (140) of the liquid pump (48) and/or has a second liquid line (240) for connecting the first container (22) to a pressure side (150) of the liquid pump (48) and/or a third liquid line (250) for connecting the second container (24) to a suction side (140) of the has a liquid pump (48) and/or has a fourth liquid line (260) for connecting the second container (24) to a pressure side (150) of the liquid pump (48) and/or has a fifth liquid line (270) for connecting the distribution elements (28) having a pressure side (150) of the liquid pump (48). Field sprayer system (110). claim 12 that at least the first liquid line (230) and/or the second liquid line (240) and/or the third liquid line (250) and/or the fourth liquid line (260) and/or the fifth liquid line (280) has a valve (120) for the optional functional fluid connection of the first container (22) and/or the second container (24) and/or the distribution elements (28) with the pressure side (150) of the liquid pump (48) and/or the suction side (140) of the liquid pump (48 ) assigned. Field sprayer system (110). Claim 13 , characterized in that the valve (120) is in particular electrically and/or pneumatically switchable and/or controllable, in particular by means of a control device (170) is switchable and/or controllable. Field sprayer system (110) according to one of the preceding claims, characterized in that the first container (22) and the second container (24) are each assigned a sensor device (280) that detects a filling level and that the conveyor device (50), in particular the Liquid pump (48) and/or valves (120) assigned to the liquid line system (100) can be switched and/or controlled by means of a control device (170) on the basis of a respective fill level. Field sprayer system (110). claim 15 , characterized in that the liquid pump (48) and/or the valves (120) can be actuated using various strategies, in particular such that a defined differential level between the first container (22) and the second container (24) is generated and /or in such a way that there is a maximum transfer of the spray liquid from the first container (22) to the second container (24) or vice versa. Field sprayer system (110) according to one of the preceding claims, characterized in that the liquid line system (100) has an overflow line (290) for connecting the first container (22) to the second container (24), the overflow line (290) preferably being in opens into the first container (22) and the second container (24) in an upper region. Field sprayer system (110). Claim 17 , characterized in that no valves (120) and/or switching elements are assigned to the overflow line (290). Field sprayer system (110) according to one of the preceding claims, characterized in that the field sprayer system (110) comprises a third container (26) for spray liquid to be distributed, which is connected to the first container (22) and the second container by means of the liquid line system (100). (24) and the liquid pump (48) forming the conveying device (50) is operatively connected. Field sprayer system (110). claim 19 , characterized in that the liquid pump (48) is set up at the same time to spray liquid from the first container (22) and/or the second container (24) and/or the third container (26) by means of the liquid line system (100) to the distribution elements ( 28) to convey and/or to transfer spray liquid from the first container (22) to the second container (24) by means of the liquid line system (100) and/or to transfer the third container (26) and/or to transfer spray liquid by means of the liquid line system (100). the second container (24) into the first container (22) and/or the third container (26) and/or spray liquid by means of the liquid line system (100) from the third container (26) into the first container (22) and/or to relocate the second container (24). Field sprayer system (110) according to one of the preceding claims, characterized in that the field sprayer system (110) has a first container (22), a second container (24) and a third container (26), wherein in the first container (22) and in the second container (24) an identical first spray liquid and in the third container (26) a second spray liquid that differs from the first spray liquid is carried along. Field sprayer system (110) according to one of the preceding claims, characterized in that the liquid line system (100) is assigned a suction connection (190), the suction connection (190) being connected by means of the liquid line system (100) in particular to a suction side (140) of the liquid pump (48 ) is functionally connected. Field sprayer system (110) according to one of the preceding claims, characterized in that the liquid lines of the liquid line system (100) are designed both as pressure lines and as suction lines. Method for conveying and/or transferring spray liquid, characterized by the steps of providing a field sprayer system (110) with a first container (22) assigned to a mounted field sprayer (10) for spray liquid to be distributed and a container (12) preferably assigned to it second container (24) for spray liquid to be distributed, wherein the mounted field sprayer (10) has a spray boom (16) with distribution elements (28) for the distribution of the spray liquid and wherein the first container (22), the second container (24) and the distribution elements (28) are operatively connected by means of a liquid line system (100) and the spray liquid is conveyed and/or relocated through the liquid line system (100) by means of a conveying device (50), the liquid line system (100) being designed and set up in such a way that the Conveying and/or relocating by means of a conveying device (50). liquid pump (48), - Simultaneous delivery of spray liquid from the first container (22) and/or the second container (24) by means of the liquid line system (100) to the distribution elements (28). procedure after Claim 24 , characterized by simultaneous transfer of spray liquid by means of the liquid line system (100) from the first container (22) to the second container (24) and/or from the second container (24) to the first container (22).

Images