DE102020115320A1 - Distribution linkage for agricultural distribution vehicle with roll-profiled structures - Google Patents

Abstract

The invention relates to a distribution rod (100) for distributing liquid and / or solid media, preferably for a mobile agricultural distribution machine, the distribution rod (100) having at least one distribution rod section (10, 1A, 1B) which is designed as a rolling profile. The invention also relates to a method for producing a distribution linkage section (10, 1A, 1B) for such a distribution linkage (100) and a mobile agricultural distribution machine with such a distribution linkage (100).

Description

The invention relates to a distribution linkage for distributing liquid and / or solid media, preferably for a mobile agricultural distribution machine, the distribution linkage having at least one distribution linkage section which is designed as a rolling profile. The invention also relates to a method for producing such a distribution linkage and a mobile agricultural distribution machine with such a distribution linkage.

Mobile agricultural machines are used to distribute liquid and / or solid media on agricultural areas (arable land, meadows, pastures, etc.). The liquid media are often sprayable fertilizers and / or pesticides. The mobile agricultural machines are, for example, add-on sprayers or trailed field sprayers or correspondingly motorized vehicles such as self-propelled sprayers, which distribute the medium to be applied or distributed across the surface across the direction of travel via the distribution linkage as well as line and nozzle systems.

In order to keep the number of tramlines to protect the plants and soil of the agricultural areas as low as possible and to be able to work large areas with just a few operations, distribution rods often have large working widths and therefore have spans of up to 42 meters in total, for example. For transport or driving on dirt roads and public roads, such distribution rods must be collapsible (transport position) in order to comply with the maximum permissible vehicle widths (for example 3 meters) and, in particular, to avoid restrictions in the field of vision for the driver. In order to avoid unnecessary additional fuel consumption by the tractor or the self-propelled field sprayer, the distribution linkage must also be light.

In addition to the above-mentioned requirements, distribution rods must withstand various mechanical loads in the unfolded state, especially during the processing of the agricultural areas, and must therefore be of stable and compact design. Even at low working speeds of, for example, 5 kilometers per hour, the static load caused by the dead weight also results, above all, in dynamic, that is, load conditions that change over time for the distribution linkage. In the case of unevenness in the ground (for example due to furrows, fairways) and driving over such areas, these loads also occur suddenly, jerks or vibrations.

The load spectrum of a distribution linkage therefore primarily includes dynamic bending stresses which, due to the inertia of the distribution linkage, are caused by movements in the vertical direction to the floor surface, i.e. in the direction of gravity, or by rolling movements of the vehicle around the vehicle's longitudinal axis. Further loads on the distribution linkage result from movements of the distribution linkage in the horizontal direction due to yawing / rolling movements of the vehicle around the vertical axis of the vehicle and nodding movements around the transverse axis of the vehicle.

In addition to the bending loads, which can also be found primarily in crane construction, there are also torsional loads for distribution rods, which must be taken into account by appropriate design measures on the distribution rods. For example, during the folding or swiveling process into the transport position, torsional moments are introduced into the inner, closer to the vehicle distribution linkage areas by outer or outer distribution linkage areas.

The aforementioned types of loading could be taken into account by correspondingly increasing the width and / or height of the distribution linkage, but this in turn has a disadvantageous effect on the installation space which the distribution linkage may have limited in the folded state.

Distribution rods in different designs are known from the prior art.

For example, International Patent Application No. WO 2013/092272 ("Modular Sprayer Boom Construction") a boom section of a distribution boom with an upper and a lower support beam, each of which consists of two parallel, circular tubes made of aluminum or steel. Between the upper and lower support struts there are several vertically arranged web elements made of a cast or welded composite material in the longitudinal extension of the section. The web elements each have two clamping sleeves at their upper and lower ends in order to fix the tubes of the upper and lower support beam by means of a clamping connection. In addition, inclined, intersecting strut elements are arranged between the web elements, of which one strut element penetrates the other strut element in the sense of a diagonal strut.

From the international patent application no. WO 2015/185390 ("Agricultural Sprayer Boom") is a distribution linkage for a towed tanker known, the upper and lower support beam is made by means of an extrusion or strand drawing process. The support bars each have two external tubes along their length, which are connected to one another via a web. Between the support bars there are tubular struts which are arranged obliquely to one another and which are fastened to projections of the upper and lower support bars via clamping elements.

The published utility model no. DE 20 2007 010 064 (“Spray boom, especially for mobile agricultural use”) apparently a spray boom with a boom which is formed from a U-shaped sheet metal profile. The sheet metal edge profile is glued to opposite inner leg surfaces with a sheet metal strip in order to close the sheet metal edge profile in the circumferential direction. The sheet metal edge profile can be made of steel or light metal, for example aluminum, or of fiber-reinforced plastic, for example GRP.

It is an object of the invention to provide a distribution linkage for a mobile agricultural machine that is optimized and improved both in terms of production engineering and design, as well as a mobile agricultural distribution machine with at least one such distribution linkage. It is also an object of the invention to provide a manufacturing method for such a distribution linkage.

These objects are achieved by the distribution linkage according to the invention and the method for producing a distribution linkage according to the invention with the features of the independent claims. Further exemplary embodiments and applications of the invention emerge from the dependent claims and are explained in more detail in the following description with partial reference to the figures.

According to a first general aspect, the present invention relates to a distribution linkage for distributing liquid and / or solid media, preferably for a mobile agricultural distribution machine, the distribution linkage having at least one distribution linkage section which is designed as a rolling profile.

Liquid media include, for example, sprayable pesticides and / or sprayable fertilizers. Solid media include, for example, seeds or granular mineral fertilizers. In addition to the term "distribution linkage", the term "spray linkage" or "spray linkage" is used synonymously in the case of the distribution of liquid, sprayable media. A mobile agricultural distribution machine can, for example, be a field sprayer (mounted field sprayer, trailed field sprayer or self-propelled field sprayer, etc.) or a fertilizer spreader, preferably a pneumatic spreader (also known as a “precision spreader”).

The medium is distributed using a media line, for example a hose line made of flexible material. The media line is preferably attached to the distribution linkage and / or integrated therein and transports the medium to defined positions on the distribution linkage. The distribution linkage thus ensures the guidance of the media line and the discharge, that is, distribution of the medium via several nozzle devices which are attached to the distribution linkage. Furthermore, it can also be provided that the media line additionally transports a gaseous medium, preferably compressed air.

The at least one distribution rod section designed as a roll profile is therefore formed in particular by a roll profiling process.

Roll profiling (also called "roll forming") can be, for. B. be a forming process with which, for example, roll profiles with exact cross-sections can be formed at room temperature. With roll profiling, a comparatively flat strip made of a roll-profilable material can be passed through pairs of rolls or rollers that are modularly arranged one behind the other. With each pair of rollers, a further, plastic deformation state can be added to the belt until a defined cross-section with a desired contour is achieved.

According to a further aspect of the invention, it can be provided that the distribution linkage section is designed symmetrically and / or asymmetrically in its cross section along its longitudinal extent, at least in some areas.

By designing at least one distribution linkage section with an asymmetrical cross-section in, for example, a substantially V-shaped, U-shaped or H-shaped configuration, a distribution linkage can be created, for example, which can have a structural design that is optimized for the load at least in some areas. In addition, with appropriate dimensioning, areas, preferably outer side areas, can be provided on at least one distribution rod section, which are used to accommodate or assemble additional components, such as brackets and guides for hoses, sensors, pneumatic or hydraulic cylinders, separate pumps, etc.

According to a further aspect of the invention it can be provided that the The cross-section of the distribution rod section changes at least in some areas along its longitudinal extent, the wall thickness of the distribution rod section preferably changing and / or the contour of the distribution rod section changing.

As a result, a distribution linkage can be created which is optimally adapted to the mechanical loads that occur by means of corresponding geometric dimensions of distribution linkage sections. For example, through constantly changing cross-sections, mechanical loads and the resulting stresses can be directed through the distribution linkage in a targeted manner and there are no undesirable stress or stress concentrations.

The at least one designed as a rolling profile distribution linkage section can have a wall thickness of z. B. about 2 mm to about 3 mm. In the outer area of the distribution rod, the distribution rod section can, for example, have a smaller wall thickness than in the root area. The root area can represent the connection area to the agricultural distribution machine. The root area can therefore be that area of the distribution linkage in which the distribution linkage is generally subjected to maximum load. In order to cope primarily with the dynamically occurring bending stresses, the distribution linkage section in the root area can, for example, have the greatest axial moment of resistance (bending moment of resistance) than a section in the central area or in particular in the outer area of the distribution linkage.

According to a further aspect of the invention it can be provided that the distribution rod section has a first hollow profile segment and / or a second hollow profile segment, the first hollow profile segment and the second hollow profile segment preferably being spaced from one another and / or connected to one another via a connecting web.

The first hollow profile segment and / or the second hollow profile segment can, for example, be tubular and / or have any cross-section that can be produced using the roll profiling process in the longitudinal direction. The connecting web can, for example, have a flat design and, in a preferred exemplary embodiment of the invention, connect the first hollow profile segment and the second hollow profile segment to one another.

By using two spaced hollow profile segments, despite the compact, i.e. space-saving design, a distribution rod section with a preferably increased bending resistance torque can be achieved in order to optimally absorb the internal stresses caused by bending loads, especially compressive stresses.

According to a further aspect of the invention it can be provided that the first hollow profile segment and / or the second hollow profile segment has a contour that is closed in the circumferential direction in cross section.

A contour that is closed in the circumferential direction of the first hollow profile segment and / or that of the second hollow profile segment can be formed, for example, in that roll-formed wall sections partially overlap to form the hollow profile segment and are preferably also connected to one another by means of an integral and / or form-fitting connection.

Closed hollow profile segments are particularly resistant to torsion loads, for example. For example, the first closed hollow profile segment and / or the second closed hollow profile segment can have a substantially rectangular or a substantially trapezoidal contour in its cross section.

According to a further aspect of the invention it can be provided that the second hollow profile segment extends further (preferably downward) from the connecting web than the first hollow profile segment, preferably at least up to a nozzle outlet of a nozzle device and / or beyond.

The second hollow profile segment can have a larger profile height than the first hollow profile segment, formed by the roll profiling process, and thus extend further, in particular downward, from the common connecting web. In this way, for example, a distribution rod section can be provided which has an asymmetrical cross section. The second hollow profile segment with the greater profile height can be used, for example, for attachment and / or for fastening and / or for integrating components (e.g. sensors, media line, clamps for fastening a media line, nozzle devices, etc.) on and / or in the second hollow profile segment .

In addition, such a hollow profile segment can also serve as collision protection for, for example, a nozzle device, e.g. B. when it extends at least up to the nozzle outlet of the nozzle device. The nozzle device can be, for example, a spray nozzle for liquid sprayable media or a scatter nozzle for granular media.

According to a further aspect of the invention it can be provided that the nozzle device is attached to the connecting web and alternatively or additionally to the first and / or second hollow profile segment.

The fastening can preferably be formed by a releasable form-fitting connection, for example a screw connection, in order to enable the nozzle device to be replaced or repaired.

According to a further aspect of the invention it can be provided that at least one nozzle device and / or at least one media line section for distributing liquid and / or solid media is arranged between the first hollow profile segment and the second hollow profile segment.

A media line section can, for example, be a part of a hose line made of flexible material for transporting a liquid medium (pesticides, fertilizers, etc.). Such an arrangement allows the available installation space to be optimally used, as a result of which essential other components of the distribution linkage are protected and a compact structure is achieved.

According to a further aspect of the invention it can be provided that the first hollow profile segment and the second hollow profile segment and the connecting web are designed as a roll profile, preferably designed as a common roll profile.

The distribution linkage section can thereby preferably be produced by means of a single roll profiling process and expediently no further profile-forming machining processes are required.

According to a further aspect of the invention it can be provided that the distribution linkage has a z. B. upper distribution rod section and a z. B. comprises lower distribution rod section, wherein the upper distribution rod section is designed as a roll profile and / or the lower distribution rod section is designed as a roll profile, or the upper distribution rod section is designed as a preferably rectangular hollow profile and the lower distribution rod section is designed as a roll profile.

The upper distribution linkage section can, preferably in the operating position of the distribution linkage (unfolded state), form the outer upper support profile (“roof segment”) of the distribution linkage section and generally serve mostly to absorb tensile loads. The lower distribution linkage section can, preferably in the operating position of the distribution linkage (unfolded state), form the outer lower support profile ("floor segment") of the distribution linkage section and generally serve mostly to absorb pressure loads. The upper distribution rod section and the lower distribution rod section can thus serve as the main support profiles of the distribution rod.

According to a further aspect of the invention it can be provided that the upper distribution rod section and the lower distribution rod section are at least partially spaced apart, are connected to one another via two laterally spaced strut structures, and / or the lower distribution rod section is wider and / or higher than the upper one Distribution linkage section.

By spacing the upper distribution rod section from the lower distribution rod section, the loading capacity of the distribution rod, which is subjected to bending, can be increased, with the tensile and compressive stresses on the outer areas being absorbed by the respective distribution rod section.

In addition, it can additionally or alternatively be provided that the upper distribution rod section and the lower distribution rod section are aligned converging with one another and / or overlap or contact one another at least in sections.

By providing two laterally spaced strut structures between the upper distribution linkage section and the lower distribution linkage section, the resistance, i.e. stability and rigidity of the distribution linkage with regard to bending and torsional loads can be significantly increased.

A strut construction can be designed, for example, as a zigzag-shaped strut structure or as a diagonal strut structure, for example with crossing strut elements.

Due to a (geometrically) wider and / or higher design of the lower distribution rod section compared to the upper distribution rod section, the lower distribution rod section can have a greater bending and / or torsional resistance moment compared to the upper distribution rod section and thus greater rigidity. This in turn can lead to an increase in the overall rigidity of the distribution rod.

According to a further aspect of the invention it can be provided that the upper distribution linkage section and / or the lower distribution linkage section has a substantially U-shaped contour, the leg regions of which are preferably made of e.g. B. are formed as previously described hollow profile segments and preferably, starting from the respective connecting web, extend towards one another or extend away from one another or can extend in a common direction.

For example, a channel-like design of the upper distribution rod section and a channel-like configuration of the lower distribution rod section, each with a U-shaped cross section, enables, for example, an even more compact and load-appropriate design of the distribution rod. Depending on the load requirement and / or the intended distribution linkage design, the upper distribution linkage section and the lower distribution linkage section can be positioned or aligned according to the extent of their leg areas towards one another or running in opposite directions, i.e. away from one another.

In this way, for example, a further increase in the rigidity of the distribution linkage with regard to bending and torsional loads is achieved while maintaining a compact design.

It is also possible to position or align the leg regions of the upper distribution rod section and of the lower distribution rod section in a common direction in order to be able to develop further variants of the distribution rod.

According to a further aspect of the invention, it can be provided that the two strut structures are at least partially connected to the outer sides of the upper and / or lower distribution rod section with the upper and / or lower distribution rod section, preferably by an integral connection and / or a form-fitting connection.

By attaching two strut structures, for example on the two outer sides, that is to say outer sections of the two leg regions of the distribution rod sections, further stiffening of the distribution rod is achieved.

According to a further aspect of the invention, it can be provided that the distribution linkage in a cross-sectional view has a preferably essentially rectangular or a preferably essentially trapezoidal outline formed by the upper distribution linkage section, the lower distribution linkage section and the two strut structures and preferably tapers along its longitudinal extent.

In this way, for example, a more compact design of the distribution linkage that is further optimized with regard to the loads that occur can be achieved.

It is possible that the at least one distribution linkage section comprises at least one pivoting device which has a cone system with at least one first cone-shaped bearing journal section.

As a result, the distribution linkage can be designed to be pivotable, for example, and preferably enables simple assembly.

According to a further aspect of the invention it can be provided that the upper distribution rod section, for example an upper first distribution rod section, and / or the lower distribution rod section, for example a lower first distribution rod section, have a pivoting device at least at a first end of the upper distribution rod section and / or the lower distribution rod section has or forms in order to be pivotable with respect to a further upper distribution rod section, for example an upper second distribution rod section, and / or a further lower distribution rod section, for example a lower second distribution rod section, by means of the pivoting device, preferably a releasably fastened bearing journal of the pivoting device.

The upper distribution rod section and / or the lower distribution rod section is preferably designed as a roll profile. A front end of a distribution rod section comprises, for example, an end region present in the longitudinal extension of the distribution rod section or at least one end surface of the distribution rod section.

The pivoting device can be designed as a (swivel) joint-like or hinge-like mounting which enables a pivoting or folding movement of preferably individual distribution rod sections to one another in order to be able to bring the distribution rod into a transport position.

According to a further aspect of the invention it can be provided that the bearing pin has or forms at least one cone system, preferably in sections at least one cone connection for detachable attachment to a distribution rod section. The swivel device can therefore at least have a cone system, preferably in sections have at least one conical connection with at least one first substantially conical bearing journal section.

The use of a cone system, preferably at least one cone connection, enables, for example, play-free storage. Such pivoting devices have, for example, a simple but robust construction and are almost maintenance-free.

A conical bearing journal section can, for example, have an essentially conical or essentially frustoconical contour.

According to a further aspect of the invention, it can additionally be provided that the cone system, preferably the bearing journal, has a second essentially conical bearing journal section in order to preferably form a second conical connection, the first conical bearing journal section and the second conical bearing journal section being spaced apart from one another and / or are connected to one another via a substantially cylindrical bearing journal section, preferably formed integrally in one piece as a double-conical bearing journal.

According to a further aspect of the invention it can be provided that the first essentially conical bearing journal section and the second essentially conical bearing journal section taper, preferably continuously, in their cross sections in opposite directions.

In other words, the first conical bearing journal section and the second conical bearing journal section can taper oppositely in the direction of the longitudinal extension of the bearing journal towards the respective ends of the bearing journal. The outer diameter of the first and / or the second conical bearing journal section can, for example, decrease linearly. As a result, a bearing journal is provided which can preferably form two conical connections.

• Die Schwenkeinrichtung kann beispielsweise, wie oben bereits ausgeführt, scharniergelenkartig ausgeführt sein. Hierbei kann ein erster Verteilgestängeabschnitt, beispielsweise ein oberer erster als Rollprofil ausgebildeter Tragholm, einen gabelförmigen oder einen U-förmigen Bereich mit zwei voneinander beabstandeten Schenkeln aufweisen. Zwischen den Schenkeln kann sich ein Laschenbereich eines zweiten Verteilgestängeabschnitts, beispielsweise eines oberen zweiten als Rollprofil ausgebildeten Tragholms, befinden, wobei der Laschenbereich um einen Lagerzapfen schwenkbeweglich gelagert ist. Der Lagerzapfen kann zum Beispiel abschnittsweise in zumindest einem der Schenkel (erste Kopplungsstruktur) zumindest eine Konusverbindung ausbilden, um den Lagerzapfen an dem ersten Verteilgestängeabschnitt durch einen Pressverband der Konusverbindung lösbar zu befestigen.

In addition, the swivel device can be specified as follows:

• The pivoting device can, for example, as already stated above, be designed in the manner of a hinge joint. In this case, a first distribution rod section, for example an upper first support beam designed as a roll profile, can have a fork-shaped or a U-shaped area with two legs that are spaced apart from one another. A tab area of a second distribution rod section, for example an upper, second support beam designed as a roll profile, can be located between the legs, the tab area being mounted such that it can pivot about a bearing journal. The bearing pin can, for example, form at least one conical connection in sections in at least one of the legs (first coupling structure) in order to releasably attach the bearing pin to the first distribution rod section by means of an interference fit of the conical connection.

The bearing pin can, for example, be designed as a bolt or as an axle bolt. The bearing journal can preferably be made from a metallic material, for example from a high-strength steel.

The at least one conical connection can be designed, for example, as a conical interference fit with preferably conical active surfaces. The bearing pin can, for example, have the shape of a cone or a truncated cone, at least in sections. The cone or the truncated cone of the bearing pin can preferably be combined with a further component, for example a cylindrical bushing or a cylindrical sleeve with an inner cone that is complementary to the cone or to the truncated cone of the bearing pin, i.e. a complementary conical (conical or frusto-conical) inner surface , contact and preferably form a conical connection and thus an interference fit in the assembled state. Here, the cylindrical bushing or the cylindrical sleeve can be “pressed” against this receiving area in a receiving area of the first coupling structure and the bearing journal can be releasably fastened, preferably in the radial direction and also in the axial direction of the bearing journal.

The invention provides a distribution linkage which, for example, enables simple assembly of the first distribution linkage section and the second distribution linkage section and thus their mutually pivotable mounting. Furthermore, this also creates, for example, a distribution linkage with a pivoting device, which is particularly low-maintenance.

By forming a conical connection, for example, there is also the possibility of simple adjustment or readjustment. Manufacturing tolerances in the bearing journal and / or in the bushing or the sleeve, for example, can play a subordinate role.

According to a further aspect of the invention it can be provided that to form the Pivoting device, the first distribution rod section preferably has a first coupling structure at one end and the second distribution rod section preferably has a second coupling structure at one end, which are preferably designed in a hinge-like or preferably articulated manner and / or arranged to one another. The first coupling structure and / or the second coupling structure can preferably be penetrated by the bearing journal at least in sections.

Via a first coupling structure of the first distribution rod section and a second coupling structure of the second distribution rod section, which are pivotably connected to one another by means of a bearing journal, the pivoting device can, for example, be structurally optimized for occurring and / or expected mechanical loads.

A hinge-like or articulated design of the first coupling structure and the second coupling structure enables, for example, a simple but nevertheless robust construction of the pivoting device and makes the distribution linkage less susceptible to wear.

The bearing pin can, for example, be received in the first coupling structure via the at least one conical connection at least in sections, that is to say fastened therein, preferably fastened releasably, in order, for example, to ensure interchangeability.

Preferably, the bearing journal can be received at least in sections in two opposite and spaced-apart areas of the first coupling structure via a first conical connection and via a second conical connection in the first coupling structure, that is to say fastened therein. In this way, for example, the bearing journal can be fastened to the first coupling structure at two different points or positions, which leads, for example, to increased stability of the pivoting device.

Furthermore, the bearing pin can preferably penetrate the second coupling structure and in this case enable the second coupling structure to be supported in a pivotable manner around the bearing pin.

According to a further aspect of the invention it can be provided that the bearing pin is received at least in sections via the at least one conical connection in a first bearing pin receiving area of the first coupling structure in order to preferably form an interference fit with the first coupling structure, i.e. a press connection and the bearing pin preferably releasable therein to be attached in sections.

Due to the conical connection and the resulting press connection between the bearing journal, i.e. a bearing journal section and the first bearing journal receiving area of the first coupling structure, the bearing journal can preferably be releasably fastened, for example in the axial direction, i.e. in the direction of the longitudinal extension of the bearing journal.

Furthermore, the conical connection enables, for example, a good absorption of sudden or jerky occurring or changing mechanical loads. In addition, the conical connection can be produced relatively simply and inexpensively, for example, since rotationally symmetrical components are preferably used here.

According to a further aspect of the invention, it can be provided that the first coupling structure preferably has a second bearing journal receiving area which is arranged at a distance from the first bearing journal receiving area, preferably in the longitudinal extent of the bearing journal, in order to preferably receive the bearing journal at least in sections, preferably via a second conical connection.

The bearing pin can be releasably attached to two points or positions in the first coupling structure with the aid of a second bearing pin receiving area and a second conical connection, for example in accordance with the load.

By spacing the first bearing pin receiving area from the second bearing pin receiving area and the bearing pin which is detachably fastened therein in sections via a conical connection, the area in between, which is traversed by the bearing pin, can be used for coupling, i.e. pivoting mounting of the second distribution rod section via a second coupling structure of the second distribution rod section be available. A pivoting device of the distribution linkage can thus be designed with a joint-like or hinge-like shape.

According to a further aspect of the invention, as already indicated above by way of example, it can be provided that the second coupling structure comprises a bearing journal passage area, via which the second coupling structure is preferably pivotably, that is, pivotably mounted, about the bearing journal.

The journal passage area can, for example, be a round through hole be designed, which is at least completely traversed by the bearing pin in the longitudinal extension.

According to a further aspect of the invention it can be provided that the bearing journal has at least one first essentially conical bearing journal section for forming the at least one conical connection.

The conical bearing journal section can, for example, as already explained above by way of example, be designed essentially conical or essentially frustoconical. The conical design of a bearing journal section of the bearing journal, i.e. a bearing journal with an outer cone section, makes it possible, for example, to form a cone connection in a relatively simple manner, together with a bushing with an inner cone section complementary to the outer cone section.

The conical journal section can also be produced relatively easily, for example.

According to a further aspect of the invention it can be provided that between the bearing journal, preferably between a substantially cylindrical bearing journal section of the bearing journal, and the second coupling structure in the journal passage area, preferably a bearing bushing or an eccentric bushing for setting the position of the second coupling structure relative to the bearing journal, is arranged is, wherein the bearing bushing or the eccentric bushing in the bearing journal passage area is preferably detachably non-rotatably connected, for example by a spline or toothed shaft connection or press connection, to the second coupling structure.

The bearing bushing and / or the eccentric bushing can have an essentially cylindrical outer contour for receiving in the bearing journal passage area of the second coupling structure of the second distribution rod section.

According to a further aspect of the invention it can be provided that a sliding bearing or a roller bearing is arranged between the bearing journal, preferably between the essentially cylindrical bearing journal section of the bearing journal, and the bearing bushing or the eccentric bushing.

The plain bearing can for example comprise a bushing, preferably a plastic bushing or a coated bushing made of plastic and / or a metallic material.

The roller bearing can comprise, for example, a needle bearing or a roller bearing or barrel bearing.

The mounting of the bearing journal in the bearing bushing or in the eccentric bushing by means of an intermediate plain bearing or roller bearing creates, for example, a low-maintenance or virtually maintenance-free swivel device. Furthermore, such an arrangement can, for example, absorb relatively high mechanical loads.

By means of the eccentric bushing, it is possible, for example, to individually adjust the second distribution rod section via the second coupling structure in relation to the position in relation to the bearing pin and / or, for example, to provide a pivoting device free of play.

According to a further aspect of the invention it can be provided that at least one sealing element is arranged between the bearing journal, preferably between the essentially cylindrical bearing journal section of the bearing journal, and the bearing bushing or the eccentric bushing, in order to seal the area of the sliding bearing or the roller bearing.

In this way, for example, the penetration of water and / or foreign bodies, such as, for example, dirt, into the area of the slide bearing or the roller bearing can be prevented. In addition, this also makes the pivoting device less susceptible to wear, for example.

The at least one sealing element can for example comprise a wiper ring or an O-ring or the like. The at least one sealing element can preferably extend around the outer circumference, that is to say the outer contour of the bearing journal, preferably in a cylindrical section of the bearing journal.

According to a further aspect of the invention it can be provided that the at least one conical connection comprises at least one sleeve or preferably at least one bushing, which, preferably in the assembled state of the pivoting device and thus the distribution linkage, with its inner surface at least partially contacts the first conical bearing journal section and with its outer surface at least partially contacts the first bearing journal receiving area in order to preferably form a non-rotatable and play-free connection, preferably a press connection.

The at least one bushing can preferably have a conical inner surface which is complementary to the conical bearing journal section in order to be able to communicate with the conical Contact journal section. Furthermore, the at least one bushing can preferably have a cylindrical outer surface in order to contact the first bearing journal receiving area at least in sections with the formation of a conical connection. The first bearing journal receiving area can have a cylindrical inner surface for making contact with the socket, that is to say with the outer surface of the socket.

As a result, a conical connection is provided, for example, which is characterized by a relatively simple structure, which is easy to assemble, which is made up of a few components and which is robust and low-wear.

According to a further aspect of the invention it can be provided that the bearing bushing or the eccentric bushing is supported on the first coupling structure via at least one thrust washer and / or preferably makes contact with it.

The thrust washer can for example be made of a metallic material and / or have a sealing element, preferably an O-ring.

It is possible that a lubricant, preferably based on grease, is located between at least one contact surface of the thrust washer and the associated contact surface of the bearing bushing or the eccentric bushing and / or the contact surface of the first coupling structure. In this way, for example, the swivel device can be further optimized with regard to its wear behavior and its service life.

According to a further aspect of the invention it can be provided that the bearing journal has a through hole, preferably a circular through hole, for receiving a clamping bolt or preferably a threaded bolt, around the first conical bearing journal section and the second conical bearing journal section of the bearing journal together with a first bushing or sleeve and a second bushing or sleeve, and preferably each with a washer or an intermediate ring, to be brought into contact simultaneously with the first bearing journal receiving area and the second bearing journal receiving area of the first coupling structure during the assembly process and / or simultaneously with the first bearing journal receiving area and the second bearing journal receiving area of the first To fasten the coupling structure, preferably releasably, preferably with the formation of a press fit.

In this way, a first conical connection and a second conical connection can preferably be formed at the same time by means of a single clamping bolt or a single threaded bolt.

According to a further aspect of the invention, it can be provided that the first essentially conical bearing journal section and the second essentially conical bearing journal section and the essentially cylindrical bearing journal section are connected to one another, preferably are formed as a double-conical bearing journal.

According to a further aspect of the invention, the bearing journal can alternatively also be designed to be substantially cylindrical throughout its length and form a conical connection using a conical clamping bush, i.e. a clamping bush with a conical or frustoconical outer surface. For this purpose, the bearing journal receiving section can be designed to be conical in order to receive the conical clamping bush and to form an interference fit.

According to a further aspect of the invention, it can be provided that the distribution rod section is integrally formed in one piece and / or at least in sections is formed from a metallic material, preferably a high-strength steel with a minimum yield point of 500 MPa.

At least one distribution rod section can be designed as a roll profile and thus in particular be produced by a roll profiling process. For example, by forming distributor rod sections integrally in one piece from a single metal strip with corresponding profiling, that is to say a roll-formable cross-section, further or additional manufacturing processes can be avoided, for example.

With the roll profiling process, for example, high-strength materials in particular can be shaped into corresponding cross-sections with the tightest tolerances. Preferably, therefore, at least one distribution rod section can be formed from a high-strength steel roll-profiled.

According to a further aspect of the invention, it can be provided that the first hollow profile segment and / or the second hollow profile segment has a material connection at least in some areas along its longitudinal extent, preferably in the area of the connecting web, in order to close the hollow profile segment in its circumferential direction, and / or the connecting web has at least one recess.

In this way, for example, a distribution linkage section can be formed which has an increased rigidity, in particular with respect to torsional loads.

A material connection includes, for example, a welded connection, a soldered connection or an adhesive connection. Recesses can include, for example, round holes (with and without internal threads) and / or elongated holes.

The recess can for example be cut, punched or drilled, in particular formed by means of a cutting process (for example laser beam cutting process, plasma jet cutting process, water jet cutting process), punching process or drilling process.

By providing a corresponding number of recesses, for example, the weight of the distribution rod can be reduced. Furthermore, in the area of the recesses, for example, one component / several components, as already mentioned by way of example, can be present, which can lead to a further compact design of the distribution rod.

Additionally or alternatively, a form-fit connection can also be provided, which includes, for example, a screw connection, a clamp connection (interference fit), a bolt or rivet connection.

A second general aspect of the invention relates to a method for producing at least one distribution rod section for a distribution rod for distributing liquid and / or solid media, preferably for a distribution rod as disclosed herein. The method is preferably characterized in that the at least one distribution rod section is formed as a roll profile by means of a roll profiling process.

According to a further aspect of the invention it can be provided that, during the roll profiling process, an integral connection is created on the distribution rod section at least in some areas in the longitudinal extension of the distribution rod section, preferably in order to close the distribution rod section in the circumferential direction.

For example, during the roll profiling process to form a roll-formed distributor rod section with at least one hollow profile segment, the hollow profile segment can be welded without distortion along its longitudinal extent at an open gap or additionally welded without distortion at overlapping or contacting sections, preferably in the area of the connecting web, without, for example, clamping and alignment in a separate welding machine.

According to a further aspect of the invention it can be provided that at least one recess is produced on the distributor rod section during the roll profiling process.

The creation of the at least one recess, for example in the area of the connecting web of a distribution rod section with two hollow profile segments spaced apart by the connecting web, can be done for example by means of a laser beam cutting process or by means of a punching process.

In this way, for example, machining operations on further separate manufacturing machines can again be avoided. By designing or creating a recess / several recesses on the distribution linkage section, a weight reduction of the distribution linkage can also be achieved, for example.

A third general aspect of the invention relates to a mobile agricultural distribution machine with at least one distribution linkage as disclosed herein. The mobile agricultural distributing machine can preferably be a field sprayer (for example mounted field sprayer, self-propelled field sprayer or trailed field sprayer) or a fertilizer spreader, for example a pneumatic spreader, or a slurry tanker.

In order to avoid repetitions, features directed purely to the device of the distributor linkage according to the invention and / or disclosed in connection therewith should also be deemed to be disclosed and claimable in accordance with the method, and vice versa.

The exemplary embodiments and features of the invention described above can be combined with one another as desired. Further details and advantageous effects of the invention are described in more detail below with reference to the accompanying figures.

• • 1 eine perspektivische Ansicht einer Verteilgestängekonfiguration mit zwei Ausführungsbeispielen eines erfindungsgemäßen Verteilgestänges;
• • 2A eine perspektivische Ansicht eines ersten Ausführungsbeispiels eines Verteilgestänges mit einem oberen Verteilgestängeabschnitt und einem unteren Verteilgestängeabschnitt;
• • 2B eine Seitenansicht des in 2A dargestellten Verteilgestänges;
• • 3A eine Schnittansicht des in 2B dargestellten Verteilgestänges;
• • 3B eine weitere Schnittansicht des in 2B dargestellten Verteilgestänges;
• • 3C eine vergrößerte Ansicht eines Teilbereichs der in 3B dargestellten Schnittansicht;
• • 4A eine vergrößerte Ansicht der äußeren Endbereiche des in 2A dargestellten Verteilgestänges;
• • 4B eine vergrößerte Ansicht eines Teilbereichs des in 4A dargestellten Verteilgestänges;
• • 5A eine perspektivische Ansicht eines zweiten Ausführungsbeispiels eines Verteilgestänges mit einem unteren Verteilgestängeabschnitt;
• • 5B eine Seitenansicht des in 5A dargestellten Verteilgestänges;
• • 6A eine Schnittansicht des in 5B dargestellten Verteilgestänges;
• • 6B eine weitere Schnittansicht des in 5B dargestellten Verteilgestänges;
• • 6C eine vergrößerte Ansicht eines äußeren Endbereichs des in 5A dargestellten Verteilgestänges;
• • 7 eine Querschnittsansicht eines asymmetrisch ausgebildeten Verteilgestängeabschnitts;
• • 8 den in 7 dargestellten Verteilgestängeabschnitt mit einer daran befestigten Düseneinrichtung;
• • 9 einen Ausschnitt des in 1A dargestellten ersten und zweiten Verteilgestänges;
• • 10 eine Seitenansicht des in 9 dargestellten Verteilgestängeausschnitts;
• • 11 eine weitere Seitenansicht des in 9 dargestellten Verteilgestängeausschnitts;
• • 12A eine vergrößerte Ansicht der in 11 in einer Schnittdarstellung gezeigten ersten Schwenkeinrichtung; und
• • 12B eine vergrößerte Ansicht der in 11 in einer Schnittdarstellung gezeigten zweiten Schwenkeinrichtung.

Show it:

• • 1 a perspective view of a distribution linkage configuration with two embodiments of a distribution linkage according to the invention;
• • 2A a perspective view of a first embodiment of a distribution rod with an upper distribution rod section and a lower distribution rod section;
• • 2 B a side view of the in 2A illustrated distribution linkage;
• • 3A a sectional view of the in 2 B illustrated distribution linkage;
• • 3B a further sectional view of the in 2 B illustrated distribution linkage;
• • 3C an enlarged view of a portion of the in 3B illustrated sectional view;
• • 4A an enlarged view of the outer end portions of the in 2A illustrated distribution linkage;
• • 4B an enlarged view of a portion of the in 4A illustrated distribution linkage;
• • 5A a perspective view of a second embodiment of a distribution linkage with a lower distribution linkage section;
• • 5B a side view of the in 5A illustrated distribution linkage;
• • 6A a sectional view of the in 5B illustrated distribution linkage;
• • 6B a further sectional view of the in 5B illustrated distribution linkage;
• • 6C an enlarged view of an outer end portion of the in 5A illustrated distribution linkage;
• • 7th a cross-sectional view of an asymmetrically designed distribution linkage section;
• • 8th the in 7th Distribution rod section shown with a nozzle device attached thereto;
• • 9 a section of the in 1A illustrated first and second distribution linkage;
• • 10 a side view of the in 9 Distribution linkage section shown;
• • 11th another side view of the in 9 Distribution linkage section shown;
• • 12A an enlarged view of the in 11th first pivot device shown in a sectional view; and
• • 12B an enlarged view of the in 11th second pivot device shown in a sectional view.

Identical or functionally equivalent components or elements are identified by the same reference symbols in the figures. For their explanation, reference is also made to the description of other exemplary embodiments and figures in order to avoid repetition.

The following detailed description of the exemplary embodiments shown in the figures serves for more detailed illustration and is not intended to restrict the scope of the invention in any way.

1 shows a perspective view of a distribution linkage configuration ( 100 ) with two embodiments of a distribution linkage ( 100A , 100B ) according to the present invention and a third distribution linkage ( 100C ).

The distribution boom configuration ( 100 ) is available as a three-part, swiveling or collapsible distribution boom configuration ( 100 ) shown in the unfolded state (operating state). The distribution boom configuration ( 100 ) extends in its longitudinal extension ( L. ) from their root area ( W. ) to their outside area ( A. ). In the root area ( W. ) is the distribution boom configuration ( 100 ) via coupling and storage facilities with a mobile agricultural machine (in 1 not shown for reasons of better illustration) pivotably connectable.

For a better illustration, further components and elements are also included in and / or on the distribution rods ( 100A , 100B , 100C ) (for example pumps, hydraulic cylinders, pneumatic cylinders, hoses, spray nozzles, sensors, etc.) are not shown, so that the display of the distribution linkage configuration ( 100 ) in 1 focused on the purely structural or mechanical structure.

The distribution boom configuration ( 100 ) comprises a first distribution linkage ( 100A ) and a second distribution linkage ( 100B ) according to an embodiment of the present invention. In addition, the distribution boom configuration includes ( 100 ) a third distribution linkage ( 100C ).

The first distribution linkage ( 100A ) comprises two distribution rod sections designed as a roll profile ( 1A , 1B ). The second distribution linkage ( 100B ) has a distribution rod section ( 1B ), which is designed as a roll profile. Both distribution rods ( 100A , 100B ) are described in more detail below.

The execution of at least one distribution rod section ( 1A , 1B ) as a roll profile or as a roll-formed profile enables, above all, a load-optimized structural design of the distribution linkage ( 100A , 100B ) with partially improved material properties and particularly precise cross-sections. With the use of appropriate materials, preferably metallic materials, for example at room temperature, the roll profiling process can produce a large number of different materials Profiles and associated cross-sections are created.

2A shows on the one hand in a perspective view and 2 B shows on the other hand in a side view (view C) the first distribution linkage ( 100A ) out 1 with two distribution rod sections designed as a roll profile ( 1A , 1B ). The first distribution linkage ( 100A ) includes an upper distribution rod section functioning as a roof segment ( 1A ) and a lower distribution rod section functioning as a floor segment ( 1B ).

The upper distribution boom section ( 1A ) is to the lower distribution rod section ( 1B ) spatially separated and over two bracing structures ( 21 , 22nd ) with the lower distribution boom section ( 1B ) connected. The bracing structures ( 21 , 22nd ) are each designed as a round tube, i.e. tube with a circular cross-section, running in a zigzag shape. The bracing structures ( 21 , 22nd ) run almost over the entire length ( L. ) of the upper distribution rod section ( 1A ) and the lower distribution rod section ( 1B ), i.e. from the first front end ( SE ) of the upper distribution rod section ( 1A ) and lower distribution boom section ( 1B ) to the second front end ( SE ) of the upper distribution rod section ( 1A ) and the lower distribution rod section ( 1B ).

The upper distribution boom section ( 1A ) is with regard to the lower distribution rod section ( 1B ) inclined, i.e. not aligned parallel, so that in the longitudinal direction ( L. ) of the two distribution rod sections ( 1A , 1B ) the distance between the upper distribution rod section ( 1A ) and the lower distribution boom section ( 1B ) continuously decreased. As a result, the static and dynamic (time-varying) forces and moments ( F _stat , Fdyn, T _dyn ) caused loads, in particular bending and torsional loads, which usually occur maximally in the root area, are taken into account.

The one in the 2A and 2 B shown first distribution linkage ( 100A ) are the upper distribution rod section ( 1A ) and the lower distribution boom section ( 1B ) with a U-shaped cross-section and therefore in the respective longitudinal extension ( L. ) designed like a channel. Both the upper distribution boom section ( 1A ) as well as the lower distribution boom section ( 1B ) each has two spaced apart longitudinally ( L. ) running hollow profile segments ( HP1 , HP2 ). The first hollow profile segment ( HP1 ) and the second hollow profile segment ( HP1 , HP2 ) both of the upper distribution boom section ( 1A ) as well as the lower distribution rod section ( 1B ) are each via a common connecting web ( S. ) connected.

Further explanations on the structural design of the distribution rod sections ( 1A , 1B ) as well as the resulting views of the sections AA and BB in 2 B result from the following description in relation to 3A , 3B and 3C .

3A shows the view of the in 2 B Section AA shown in enlarged form. From the sectional view AA it can be seen for the upper distribution rod section ( 1A ) and the lower distribution boom section ( 1B ) a cross section with a U-shaped contour ( K ) each with two hollow profile segments ( HP1 , HP2 ) recognize.

The first hollow profile segment ( HP1 ) and the second hollow profile segment ( HP2 ) are both in the upper distribution boom section ( 1A ) as well as the lower distribution boom section ( 1B ) via a connecting bridge ( S. ) spaced from each other and over this connecting web ( S. ) connected to each other, so that for the upper distribution rod section ( 1A ) and the lower distribution boom section ( 1B ) results in a more or less channel-like configuration. The first hollow profile segment ( HP1 ) and the second hollow profile segment ( HP2 ) are in each case as outer leg areas both in the upper distribution rod section ( 1A ) as well as the lower distribution rod section ( 1A ) mirror-symmetrical to one another, i.e. symmetrical with respect to the vertical axis shown as an alternative ( H ), educated.

As can be seen from the sectional view AA, the first hollow profile segment ( HP1 ) and second hollow profile segment ( HP2 ) of the upper and lower distribution boom section ( 1A , 1B ) from the respective connecting bridge ( S. ) away and, with respect to the vertical axis shown ( H ), in opposite directions.

In a further embodiment of the invention, the first hollow profile segment ( HP1 ) and the second hollow profile segment ( HP2 ) of the upper distribution rod section ( 1A ) and the lower distribution rod section ( 1B ) also extend towards each other. In a further embodiment of the invention, the hollow profile segments ( HP1 , HP2 ) of the upper distribution rod section ( 1A ) and the lower distribution rod section ( 1B ) all extend in a common direction or be aligned in a common direction.

In this sectional view AA of the first distribution rod ( 100A ) form the upper distribution rod section ( 1A ), the lower distribution rod section ( 1B ) and the two bracing structures ( 21 , 22nd ) a rectangular outline ( U ), i.e. have a rectangular outline ( U ) on.

3B FIG. 11 shows a further sectional view of the section BB from FIG 2 B . In 3B is a view of the cross section ( Q ) of the lower distribution rod section designed as a roll profile ( 1B ) of the distribution rod section ( 10 ) shown. The lower distribution boom section ( 1B ) has a longitudinal extension ( L. ) of the lower distribution rod section ( 1B ) constant, i.e. constant cross-section ( Q ) on.

In a further embodiment of the invention, the cross section ( Q ) of the lower distribution rod section ( 1B ) (as well as the cross-section ( Q ) of the upper distribution rod section ( 1A )) along its length ( L. ) taper, i.e. reduce the overall height and / or width.

In the in 3B The sectional view shown here shows the U-shaped contour ( K ) of the cross-section ( Q ) of the lower distribution rod section ( 1B ) recognize. As already explained above, the lower distribution rod section ( 1B ) a first hollow profile segment ( HP1 ) and a second hollow profile segment ( HP2 ), which of the first hollow profile segment ( HP1 ) over the connecting bridge ( S. ) is spaced apart. The first hollow profile segment ( HP1 ) shows in cross section ( Q ) a trapezoidal contour ( K1 ) on. The second hollow profile segment ( HP2 ) shows in cross section ( Q ) also has a trapezoidal contour ( K2 ) (see in particular 3C ), which with respect to the alternatively shown vertical axis ( H ) mirror-symmetrical with respect to the trapezoidal contour ( K1 ) of the first hollow profile segment ( HP1 ) is. Accordingly, the lower distribution rod section ( 1B ) in cross section ( Q ) by a symmetrical contour ( K ) marked.

The lower distribution boom section ( 1B ) is laterally through the two outer sides ( A_1B ) Are defined. A first outside ( A_1B ) is through the outer wall section of the first hollow profile segment ( HP1 ) and a second outside ( A_1B ) is through the outer wall section of the second hollow profile segment ( HP2 ) educated.

The lower distribution boom section ( 1B ) (as well as the upper distribution rod section ( 1A )) is preferably each integrally formed in one piece from a single strip material by a roll profiling process.

Since higher-strength materials, in particular metallic materials, can also be used in roll profiling processes, the material thickness, i.e. the wall thickness or wall thickness ( D. ) can be reduced accordingly, whereby the weight of the first distribution rod ( 100A ) can be further reduced. High-strength steels with a minimum yield strength of 500 MPa can preferably be used.

To ensure the rigidity and stability of the first distribution rod ( 100A ) to increase further, overlapping areas ( ÜB1 , ÜB2 ), i.e. overlapping wall sections ( ÜB1 , ÜB2 ), of hollow profile segments ( HP1 , HP2 ) must also be welded together and thus a welded connection ( SV ) as shown in 3C enlarged for the second hollow profile segment ( HP2 ) out 3B is shown.

The application of a weld seam, that is to say the welding process, can preferably be an integral part of the roll profiling process and can be done, for example, by means of a laser beam. The first hollow profile segment ( HP1 ) and / or the second hollow profile segment ( HP2 ) show through a welding process at least partially along their longitudinal extension ( L. ) a weld ( SV ), which are preferably located in the area of the connecting web ( S. ) and the respective hollow profile segment ( HP1 , HP2 ) closes in its circumferential direction, in particular cohesively closes (see also 4A) .

4A FIG. 11 shows, for further illustration, an enlarged view of the outer end regions in the longitudinal extension of the FIG 2A first distribution linkage shown ( 100A ).

The upper distribution boom section ( 1A ) and the lower distribution boom section ( 1B ) also have recesses (AS) in the form of elongated holes or round holes in the area of the connecting web ( S. ) on. Recesses (AS) can, for example, be cut, punched or drilled. Laser beam cutting, plasma beam cutting or water jet cutting, for example, can be used as cutting processes.

In addition, the lower distribution rod section ( 1B ) along the length ( L. ) at least partially a material connection, preferably a welded connection, and closes the first and the second hollow profile segment there in the circumferential direction ( HP1 , HP2 ) additionally cohesive.

4B FIG. 11 shows an enlarged view of a portion of the FIG 4A first distribution linkage shown ( 100A ).

The tubular strut construction shown in sections ( 21 ) in zigzag form is at least partially on one outside ( A_1A ) of the second hollow profile segment ( HP2 ) of the upper distribution rod section ( 1A ) by means of a Welded joint ( SV ) with the upper distribution boom section ( 1A ) firmly connected.

In a further embodiment of the invention, this welded connection ( SV ) alternatively also through a form-fitting connection ( FV ), such as a screw connection, a clamp connection or a rivet connection.

5A shows on the one hand in a perspective view and 5B shows, on the other hand, in a side view (view C) an embodiment of a second distributor rod ( 100B ) the in 1 shown distribution boom configuration ( 100 ).

With regard to the essential structural or mechanical design, the second distribution linkage ( 100B ) to the one in the 2A until 4B shown first distribution linkage (100BA) similar.

That in the 5A and 5B Second distribution linkage shown ( 100B ) includes a lower distribution rod section ( 1B ), which is designed as a roll profile. The upper distribution boom section ( 1A ) is with this second distribution linkage ( 100B ) manufactured as a square tube using a process other than roll profiling.

6A shows the view of the in 5B Section AA shown in enlarged form. In this second embodiment of the distribution linkage ( 100B ) is the lower distribution boom section ( 1B ) designed as a roll profile and has a cross-section with a U-shaped contour ( K ) each with two closed hollow profile segments ( HP1 , HP2 ) on. The cross-section of the upper distribution rod section ( 1A ) has a rectangular contour ( K ) and is in this embodiment of the distribution rod section ( 10 ), as already mentioned above, not designed as a roll profile.

At the in 6A The illustrated sectional view AA is a converging, i.e. non-parallel, arrangement of the first and second strut structures (2122) from the lower distribution rod section ( 1B ) towards the upper distribution boom section ( 1A ) recognizable.

The lower distribution boom section ( 1B ) has a greater width and preferably greater height than the upper distribution boom section ( 1A ) on.

In this sectional view, the distribution linkage section ( 10 ) therefore a trapezoidal outline ( U ) on.

In this sectional view AA of the second distribution linkage ( 100B ) form the upper distribution rod section ( 1A ), the lower distribution rod section ( 1B ) and the two bracing structures ( 21 , 22nd ) a trapezoidal outline ( U ), i.e. have a trapezoidal outline ( U ) on.

6B shows in analogy to 3B , with the sectional view of the section BB from 5B a view of the cross section ( Q ) of the lower distribution rod section ( 1B ). The lower distribution boom section ( 1B ) is with respect to the alternatively shown vertical axis ( H ) mirror-symmetrical and / or U-shaped in cross-section and has a first hollow profile segment ( HP1 ) and a second hollow profile segment ( HP2 ) on. The first hollow profile segment ( HP2 ) is from the second hollow profile segment ( HP2 ) via a connecting bridge ( S. ) spaced apart.

Both the first hollow profile segment ( HP1 ) as well as the second hollow profile segment ( HP2 ) each has a connecting web ( S. ) formed overlap area ( ÜB1 , ÜB2 ) from wall sections. As already explained above, the formed overlap area ( ÜB1 , ÜB2 ) additionally, for example, with a welded connection ( SV ) to be provided to the respective hollow profile segment ( HP1 , HP2 ) to close in the circumferential direction, in particular to close cohesively.

The wall thickness or wall thickness ( D. ) is, with the exception of the overlap areas ( ÜB1 , ÜB2 ), along the contour ( K ) of the lower distribution rod section ( 1B ) almost constant.

In a further embodiment of the invention, the wall thickness or wall thickness ( D. ) depending on the positioning and / or the length of the distribution boom ( 100A , 100B ) along its length ( L. ) vary.

The wall thickness or wall thickness ( D. ) can for example be in a range of approximately 2 mm to approximately 3 mm in the case of roll profiles.

6C shows an enlarged view of an outer end region in the longitudinal direction ( L. ) of the in 5A illustrated second distribution linkage ( 100B ), with in the connecting web (2) of the lower distribution rod section ( 1B ) formed recesses (AS) in the form of round holes and elongated holes.

7th shows a cross-sectional view of an asymmetrically designed distribution rod section ( 1B ), which preferably has a lower distribution rod section ( 1B ) is. the Distribution linkage section ( 1B ) is made from a single metal band, for example a steel band, by a roll profiling process and is thus integrally formed in one piece as a roll profile.

The distribution rod section ( 1B ) has a U-shaped configuration. The distribution rod section ( 1B ) has a first hollow profile segment ( HP1 ) and a second hollow profile segment ( HP2 ) on. The first hollow profile segment ( HP1 ) and the second hollow profile segment ( HP2 ) thus form the leg areas of the U-shaped distribution rod section ( 1B ). The first hollow profile segment ( HP1 ) is to the second hollow profile segment ( HP2 ) spaced apart. Between the first hollow profile segment ( HP1 ) and the second hollow profile segment ( HP2 ) there is a flat or plate-shaped connecting web ( S. ). The first hollow profile segment ( HP1 ) is, as mentioned above, via the connecting web ( S. ) with the second hollow profile segment ( HP2 ) integrally connected in one piece.

The first hollow profile segment ( HP1 ) shows in cross section ( Q ) a first trapezoidal contour ( K1 ) on. The second hollow profile segment ( HP2 ) shows in cross section ( Q ) a second trapezoidal contour ( K2 ), which corresponds to the first trapezoidal contour ( K1 ) of the first hollow profile segment ( HP1 ) is designed differently.

From the connecting bridge ( S. ) starting from or extending away from it, the first hollow profile segment ( HP1 ), preferably along the vertical axis shown as an alternative ( H ), a hollow profile segment height ( h _HP1 ), which is less than the height of the hollow profile segment ( h _HP2 ) of the second hollow profile segment ( HP2 ), for example by at least two times.

The wall thickness or wall thickness ( D. ) of the first hollow profile segment ( HP1 ) and the second hollow profile segment ( HP2 ) and the connecting bridge ( S. ) is in the shown embodiment of the distribution linkage section ( 1B ) almost constant. In a further embodiment of the invention, the wall thickness or wall thickness ( D. ), also due to the roll profiling process, also vary. For example, the wall thickness ( D. ) of the connecting web ( S. ) be greater than the wall thickness ( D. ) of the first hollow profile segment ( HP1 ) and / or the wall thickness ( D. ) of the second hollow profile segment ( HP2 ).

The first hollow profile segment ( HP1 ) and / or the second hollow profile segment ( HP2 ) can be roll-formed by the roll profiling process in such a way that wall areas of the first hollow profile segment ( HP1 ) and / or the second hollow profile segment ( HP2 ) overlap in each case at least in sections and / or contact form-fitting, preferably in the area of the connecting web ( S. ).

In 7th is such an overlap area ( ÜB1 ) of the first hollow profile segment ( HP1 ) and an overlap area ( ÜB2 ) of the second hollow profile segment ( HP2 ) shown. Preferably, as above, for example on the basis of 3C described, at the overlap area ( ÜB1 ) of the first hollow profile segment ( HP1 ) and / or at the second overlap area ( ÜB2 ) of the second hollow profile segment ( HP2 ) additionally at least in some areas along the longitudinal extension ( L. ) a material bond ( SV ), such as welded connection, soldered connection, adhesive connection, can be attached to the first hollow profile segment ( HP1 ) and / or the second hollow profile segment ( HP2 ) to close in the circumferential direction, preferably to close cohesively.

The distribution rod section ( 1B ) is laterally through the two outer sides ( A_1B ) Are defined. A first outside ( A_1B ) is through the outer wall section of the first hollow profile segment ( HP1 ) and a second outside ( A_1B ) is through the outer wall section of the second hollow profile segment ( HP2 ) educated.

8th shows the in 7th Distribution rod section shown ( 1B ) with a nozzle device attached or fixed to it ( DE ). Based on a repeated description of the already 7th described features of the distribution rod section ( 1B ) and its cross section ( Q ) is omitted at this point and the description of the 7th referenced.

8th shows a nozzle device ( DE ) with two spaced apart nozzle outlets ( DA1 , DA2 ), which are used to distribute a medium. The nozzle device ( DE ) is a spray nozzle device ( DE ) or a spray nozzle device ( DE ) for sprayable liquid pesticides or sprayable liquid fertilizers, for example.

The nozzle device ( DE ) is on the connecting bridge ( S. ) by means of detachable screw connections ( FV ) and extends in the direction of the extent of the first and the second hollow profile segment ( HP1 , HP2 ). In a further exemplary embodiment of the invention, the nozzle device ( DE ) for example also on an inner wall section of the first hollow profile segment ( HP1 ) or preferably on an inner wall section of the second hollow profile segment ( HP2 ) with a larger hollow profile segment height ( h _HP2 ) than the hollow profile segment height ( h _HP1 ) of the first hollow profile segment ( HP1 ) be releasably attached.

The extent or hollow profile segment height ( h _HP2 ) of the second hollow profile segment ( HP2 ) is greater than the extent or hollow profile _{segment height (h DE} ) of the nozzle device ( DE ). The second hollow profile segment ( HP2 ) thus fulfilled during a machining process with respect to the nozzle device ( DE ) has a protective function and preserves the nozzle device ( DE ) against possible collisions with foreign objects, which could damage the nozzle device ( DE ) can result.

The first hollow profile segment ( HP1 ) and / or second hollow profile segment ( HP2 ) is with regard to its hollow profile segment height ( h _HP1 , h _HP2 ) in relation to the spray angle range of the nozzle device ( DE ), appropriately dimensioned or coordinated so that the first and / or second hollow profile segment ( HP1 , HP2 ) with medium is excluded.

The nozzle device ( DE ) furthermore comprises a receiving area, preferably a clamp connection, for at least one section of a media line (ML) which carries a medium to the nozzle device ( DE ) transported to this then via nozzle outlets ( DA1 , DA2 ) to distribute. The media line (ML) can, for example, be a hose line made of a flexible material, which is also attached to the connecting web ( S. ) could be attached by means of a clamp connection (not shown).

9 FIG. 11 shows an enlarged view of a section of the FIG 1 illustrated first and second distribution linkage ( 100A , 100B ). In the end area of the first distribution linkage ( 100A ), i.e. at the forehead ( SE ) of the upper and lower distribution rod section designed as a roll profile ( 1A , 1B ) of the first distribution linkage ( 100A ) is a swivel device ( 31 , 32 ) arranged around the first distribution linkage ( 100A ) opposite the second distribution linkage ( 100B ) by means of the swivel devices ( 31 , 32 ) to make the pivot axis (SA) pivotable, in particular to be able to fold it together so as to overlap.

Further explanations, in particular with regard to the swivel devices ( 31 , 32 ), are based on the further description of the 10 until 12B .

10 shows a side view (view C) of the in 9 shown section of the first and second distribution linkage ( 100A , 100B ).

About the swivel devices ( 31 , 32 ) in the area of the upper distribution rod sections ( 1A ) of the first and second distribution linkage ( 100A , 100B ) and in the area of the lower distribution boom sections ( 1B ) of the first and second distribution linkage ( 100A , 100B ) is the first distribution linkage ( 100A ) opposite the second distribution linkage ( 100A ) pivoted. The two swivel devices ( 31 , 32 ) are aligned in such a way that they define a single pivot axis (SA).

The swivel devices ( 31 , 32 ) each have a hinge-like configuration.

With the first distribution linkage ( 100A ) is at the respective front end ( SE ) of the upper and lower distribution boom section ( 1A , 1B ) a first coupling structure ( 3A ) of the respective swivel device ( 31 , 32 ) intended. The first coupling structures ( 3A ) have a U-shaped shape in this view, the legs of which are oriented towards the pivot axis (SA).

Between the legs of the first two coupling structures ( 3A ) there is a second coupling structure ( 3B ). The second coupling structures ( 3B ) are at the respective front ends ( SE ) of the upper and lower distribution boom section ( 1A , 1B ) of the second distribution linkage ( 100B ) arranged.

The first coupling structures ( 3A ) and the second coupling structures ( 3B ) are mounted so that they can pivot with respect to the pivot axis (SA) and thus enable the first distribution linkage to be pivoted ( 100A ) opposite the second distribution linkage ( 100B ).

11th shows a further side view (view C) of the in 9 Distribution rod section shown with a sectional view of the two pivoting devices ( 31 , 32 ), which is based on the following description in relation to the 12A and 12B are explained in more detail.

The first coupling structures ( 3A ) and / or the second coupling structures ( 3B ) can in relation to the front end ( SE ) by means of a material connection (not shown) and / or by means of a form-fitting connection (not shown) on the respective distribution rod section ( 1A , 1B ) be fixed. The material connection can preferably be a welded connection. The positive connection can be a screw connection, for example.

12A shows an enlarged sectional view of the swivel device ( 31 ) on the upper distribution rod sections ( 1A ) and 12B shows an enlarged sectional view of the swivel device ( 32 ) on the lower distribution rod sections ( 1B ).

The two swivel devices shown ( 31 , 32 ) are structurally similar in terms of the swivel mechanism as a double cone system, i.e. with two cone connections each ( 51K , 6A ; 52K 6B ), so that the further description is initially based on the in 12A shown swivel device ( 31 ) to avoid repetitions.

As already mentioned, the second coupling structure is ( 3B ) with the first coupling structure ( 3A ) via a cone system ( 51K , 6A ; 52K , 6B ) the pivoting device (3) connected to pivot. The recording structure ( 3A ) has, in the area of its two legs, a through-hole that is aligned congruently in the direction of the pivot axis (SA) for receiving the cone system (4).

The cone system ( 51K , 6A ; 52K , 6B ) is designed as a so-called "double cone system". The cone system ( 51K , 6A ; 52K , 6B ) has a first conical or frustoconical bearing journal section ( 51K ) and a second conical or frustoconical journal section ( 52K ) on. The first conical journal section ( 51K ) and the second conical journal section ( 52K ) taper in opposite directions along the pivot axis (SA). Between the first conical journal section ( 51K ) and the second conical journal section ( 52K ) there is a central cylindrical journal section ( 5Z ).

The first conical journal section ( 51K ) and the second conical journal section ( 52K ) and the cylindrical journal section ( 5Z ) are integrally in one piece as double cone bolts or double cone bearing journals ( 5 ) formed, preferably from a high-strength steel.

The double cone bearing journal ( 5 ) is the leg of the receiving structure in the area of the through holes ( 3A ) over the first and the second conical journal section ( 51K , 52K ) on the recording structure ( 3A ) attached.

It is attached using two sockets or sleeves ( 6A , 6B ), each of which has a cone-shaped bearing journal section ( 51K , 52K ) have similar or complementary designed, conical inner profile, and which on the bearing journal sections ( 51K , 52K ) are attached or attached.

The double cone bearing journal ( 5 ) also has a through hole.

By means of a threaded bolt ( 8A ) with flat head, which goes through the through-hole of the double-cone bearing journal ( 5 ) as well as the sockets ( 6A ) or sleeves ( 6A , 6B ) is plugged in, and a mother ( 8B ) (in the 12A and 12B shown schematically) as well as two shims ( 7A , 7B ), which includes the sleeves ( 6A , 6B ) contact is made by screwing the threaded bolt ( 8A ) with the mother ( 8B ) an interference fit in the area of the conical journal sections ( 51K , 52K ) and the sockets ( 6A , 6B ) or sleeves ( 6A , 6B ) as well as an interference fit between the bushes ( 6A , 6B ) or sleeves ( 6A , 6B ) and the inner surfaces of the through holes in the leg areas of the receiving structure ( 3A ), which thus creates the double-cone bearing journal ( 5 ) releasably attached in a defined position.

Via a plain bearing or a roller bearing ( 9 ), which is preferably located around the central cylindrical journal section ( 5Z ) of the double cone bearing journal ( 5 ) can move, as well as one in the second coupling structure ( 3B ), in a through hole, located bearing bush ( 4A ) can thus via the plain bearings or the roller bearings ( 9 ) the pivotability of a distribution rod section ( 1A , 1B ) opposite a further distribution rod section ( 1A , 1B ) and thus a first distribution linkage ( 100A ) compared to a further, i.e. second distribution linkage ( 100B ) are made possible.

In 12B does the swiveling device ( 32 ) instead of a bearing bush ( 4A ) an eccentric bushing ( 4B ), whose preferably cylindrical inner surface and essentially cylindrical outer surface are not concentric to one another, that is to say do not have a common central axis. The eccentric bush ( 4B ) is therefore not designed to be rotationally symmetrical.

By turning the eccentric bush ( 4B ) in the second coupling structure ( 3B ), among other things, a possibility to adjust or adapt the alignment of the second swivel device ( 32 ) to the first swivel device ( 31 ) created to preferably form a common pivot axis (SA). This enables, for example, a backlash-free, pivotable mounting of the distribution rod sections ( 1A , 1B ) guaranteed.

The eccentric bush ( 4B ) also makes contact in the axial direction of the bearing journal ( 5 ), i.e. in the direction of the longitudinal extension of the bearing journal ( 5 ) a partial area, i.e. one leg of the first coupling structure ( 3A ) via an intermediate thrust washer ( 11th ).

In order to minimize wear and tear and prevent water and / or dirt from penetrating the swivel devices ( 31 , 32 ) can be avoided in the areas of the roller bearings ( 9 ) or the plain bearing ( 9 ) and / or the thrust washer ( 11th ) e.g. sealing elements ( 12th ) be arranged.

Furthermore, in the areas of roller bearings ( 9 ) or the plain bearing ( 9 ) and / or the thrust washer ( 11th ) a lubricant, such as grease, must also be present.

The sealing element ( 12th ) can be designed, for example, as an O-ring or as a scraper ring.

The invention is not restricted to the exemplary embodiments described above. Rather, a large number of variants and modifications are possible which also make use of the inventive concept and therefore fall within the scope of protection. The invention preferably also claims protection for the subject matter and the features of the subclaims independently of the claims referred to.

List of reference symbols

1A

upper distribution rod section

1B

lower distribution rod section

10

Distribution linkage section

11th

Thrust washer

12th

Sealing element

21

Bracing construction

22nd

Bracing construction

31

first swivel device

32

second swivel device

3A

first coupling structure

3B

second coupling structure

4A

Bearing bush

4B

Eccentric bushing

5

Double cone bearing journals

51K

first conical journal section

52K

second conical journal section

5Z

cylindrical journal section

6A

Bush / sleeve with conical inner profile

6B

Bush / sleeve with conical inner profile

7A, 7B

Washer

8A

Threaded bolt

8B

mother

9

Plain bearings, roller bearings

100

Distribution boom configuration

100A

Distribution linkage

100B

Distribution linkage

100C

Distribution linkage

A.

Outdoor area

A_10

Outside of the distribution rod section

A_1A

Outside of the upper distribution rod section

A_1B

Outside of the lower distribution rod section

D.

Wall thickness / wall thickness

DA1

Nozzle outlet

DA2

Nozzle outlet

DE

Nozzle device

Fstat, Fdyn, Tdyn

static and dynamic forces, moments

FV

Positive-locking connection

H

Vertical axis

HP1

first hollow profile segment

HP2

second hollow profile segment

hHP1

Hollow profile segment height of the first hollow profile segment

hHP2

Hollow profile segment height of the second hollow profile segment

K

contour

K1

Contour of the first hollow profile segment

K2

Contour of the second hollow profile segment

L.

Longitudinal extension

Q

cross-section

S.

Connecting bridge

SE

Front end

SV

Material connection

U

outline

ÜB1

Overlap area of the first hollow profile segment

ÜB2

Overlap area of the second hollow profile segment

W.

Root area

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed 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

• WO 2013/092272 [0009]
• WO 2015/185390 [0010]
• DE 202007010064 [0011]

Claims (20)

Distribution rods (100A, 100B) for distributing liquid and / or solid media, preferably for a mobile agricultural distribution machine, the distribution rods (100A, 100B) having at least one distribution rod section (10, 1A, 1B) which is designed as a rolling profile. Distribution linkage (100A, 100B) according to Claim 1 , wherein the distribution rod section (10, 1A, 1B) is at least partially formed along its longitudinal extension (L) in its cross section (Q) symmetrically and / or asymmetrically. Distribution linkage (100A, 100B) according to Claim 1 or 2 , wherein the distribution rod section (10, 1A, 1B) changes at least in some areas along its longitudinal extension (L) in its cross section (Q), the wall thickness (D) of the distribution rod section (10, 1A, 1B) preferably changing and / or the Contour (K) of the distribution rod section (10, 1A, 1B) changed. Distribution linkage (100A, 100B) according to one of the preceding Claims 1 until 3 , the distribution rod section (10, 1A, 1B) having a first hollow profile segment (HP1) and / or a second hollow profile segment (HP2), the first hollow profile segment (HP1) and the second hollow profile segment (HP2) preferably being spaced apart from one another and / or via a Connecting web (S) are connected to one another. Distribution linkage (100A, 100B) according to Claim 4 , the first hollow profile segment (HP1) and / or the second hollow profile segment (HP2) having a contour (K1, K2) closed in the circumferential direction in cross section (Q). Distribution linkage (100A, 100B) according to Claim 4 or 5 , the second hollow profile segment (HP2) extending further from the connecting web (S) than the first hollow profile segment (HP1), preferably at least up to a nozzle outlet (DA) of a nozzle device (DE) and / or beyond. Distribution linkage (100A, 100B) according to Claim 6 , wherein the nozzle device (DE) is attached to the connecting web (S). Distribution linkage (100A, 100B) according to one of the preceding Claims 4 until 7th At least one nozzle device (DE) and / or at least one media line section (ML) for distributing liquid and / or solid media is arranged between the first hollow profile segment (HP1) and the second hollow profile segment (HP2). Distribution linkage (100A, 100B) according to one of the preceding Claims 4 until 8th , wherein the first hollow profile segment (HP1) and the second hollow profile segment (HP2) and the connecting web (S) are designed as a roll profile, preferably designed as a common roll profile. Distribution linkage (100A, 100B) according to one of the preceding Claims 1 until 9 , wherein the distribution rod (100A, 100B) comprises an upper distribution rod section (1A) and a lower distribution rod section (1B), wherein - the upper distribution rod section (1A) is designed as a rolling profile and the lower distribution rod section (1B) is designed as a rolling profile, or - the upper distribution rod section (1A) is designed as a preferably rectangular hollow profile and the lower distribution rod section (1B) is designed as a roll profile. Distribution linkage (100A, 100B) according to Claim 10 , wherein the upper distribution rod section (1A) and the lower distribution rod section (1B) • are at least partially spaced apart from each other, • are connected to each other via two laterally spaced strut structures (21, 22), and / or • the lower distribution rod section (1B) is wider and / or higher than the upper distribution rod section (1A). Distribution linkage (100A, 100B) according to Claim 10 or 11th , the lower distribution rod section (1B) having a U-shaped contour (K), the leg regions of which are preferably formed from hollow profile segments (HP1, HP2). Distribution linkage (100A, 100B) according to Claim 11 or 12th , wherein the two strut structures (21, 22) are at least partially connected to the outer sides (A_1A, A_1B) of the upper and / or lower distribution rod section (1A, 1B) with the upper and / or lower distribution rod section (1A, 1B), preferably by a material connection (SV) or a form-fitting connection (FV). Distribution linkage (100A, 100B) according to one of the preceding Claims 11 until 13th , wherein the distribution rod (100A, 100B) in a cross-sectional view (AA) has a rectangular or trapezoidal outline (U) formed by the upper distribution rod section (1A), the lower distribution rod section (1B) and the two strut structures (21, 22), and preferably tapers along its length (L). Distribution linkage (100A, 100B) according to one of the preceding Claims 1 until 14th , where the Distribution rod section (10, 1A 1B) is integrally formed in one piece and / or is at least partially formed from a metallic material, preferably a high-strength steel with a minimum yield point of 500 MPa. Distribution linkage (100A, 100B) according to one of the preceding Claims 4 until 15th , wherein the first hollow profile segment (HP1) and / or the second hollow profile segment (HP2) at least in some areas along its longitudinal extension (L) has an integral connection (SV), preferably in the area of the connecting web (S), around the hollow profile segment (HP1, HP2) to close in its circumferential direction, and / or the connecting web (S) has at least one recess (AS). Distribution linkage (100A, 100B) according to Claim 16 , wherein the material connection (SV) comprises a welded connection, soldered connection or adhesive connection; and / or the recess (AS) is cut, punched or drilled. Method for producing a distribution rod section (10) for a distribution rod (100A, 100B) for distributing liquid and / or solid media, preferably according to one of the preceding Claims 1 until 17th , wherein the distribution rod section (10) is formed as a roll profile by a roll profiling process. Procedure according to Claim 18 , during the roll profiling process a material connection (SV) is produced on the distribution rod section (10) at least in some areas in the longitudinal extension (L) of the distribution rod section (10), preferably in order to close the distribution rod section (10) in the circumferential direction. Mobile agricultural distribution machine with at least one distribution linkage (100A, 100B) according to one of the preceding Claims 1 until 17th , wherein the mobile agricultural distributor is preferably a field sprayer or a fertilizer spreader.

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