DE102020115314A1 - Distribution linkage for agricultural distribution vehicle with a pivoting device which has a conical connection - 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, with a first distribution rod section (1A, 1B) and a second distribution rod section (2A, 2B), the first distribution rod section (1A, 1B) and the second distribution rod section (2A, 2B) are coupled to one another via a pivoting device (31, 32), characterized in that the pivoting device (31, 32) for the pivotable mounting of the first distribution rod section (1A, 1B) with respect to the second distribution rod section ( 2A, 2B) comprises a bearing pin (5) which in sections forms at least one conical connection (51K, 6A; 52K, 6B) for releasable attachment to the first distribution rod section (1A, 1B).

Description

The invention relates to a distribution rod for the distribution of liquid and / or solid media, preferably for a mobile agricultural distribution machine, with a first distribution rod section and a second distribution rod section, the first distribution rod section and the second distribution rod section being coupled to one another via a pivot device and the pivot device for pivotable mounting of the first distribution rod section comprises a bearing pin opposite the second distribution rod section, which section forms at least one conical connection for releasable attachment to the first distribution rod section. The invention also relates to 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. In order to avoid unnecessary additional fuel consumption by the tractor or the self-propelled field sprayer, the distribution linkage must also be light. For transport or driving on dirt roads and public roads, the distribution rods must be collapsible (transport position) in order to comply with the maximum permissible vehicle widths (e.g. 3 meters) and, in particular, to avoid restrictions in the driver's field of vision.

In order to make a distribution linkage pivotable, for example to be able to fold or fold the distribution linkage into a folded position, i.e. in a transport position, articulated connections are often used as pivoting devices between individual distribution linkage sections or individual distribution linkage segments. These are, for example, ball joints which are arranged between the front ends of opposite upper support bars and / or between the front ends of opposite lower support bars in order to make them pivotable with respect to one another.

Due to different types of loads on the distribution linkage, such as bending and / or torsional loads, pivoting devices must be designed in a way that is appropriate to the load. Furthermore, simple assembly must be guaranteed. Pivoting devices must also have a low weight on the one hand and be maintenance-free, robust and durable on the other. In addition, a swivel device must ensure a backlash-free mounting, on the one hand to avoid damage to the swivel device by, for example, bumps or blows and on the other hand to minimize wear.

It is an object of the invention to provide a distribution linkage with a pivoting device, which is preferably improved in terms of assembly technology and construction, and a mobile agricultural distribution machine with at least one such distribution linkage.

This object is achieved by the distribution linkage according to the invention with the features of the independent claim. 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 rod for distributing liquid and / or solid media, preferably for a mobile agricultural distribution machine, with a first distribution rod section and a second distribution rod section, the first distribution rod section and the second distribution rod section being coupled to one another via a pivoting device , wherein the pivoting device for the pivotable mounting of the first distribution rod section with respect to the second distribution rod section preferably comprises a bearing pin which in sections forms at least one conical connection for detachable attachment to the first distribution rod section.

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 The 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 an “exact spreader”).

A distribution rod section can comprise, for example, a roof segment, that is to say an upper support beam, or a floor segment, that is to say a lower support beam.

A distribution rod section can, for example, also comprise an arrangement with an upper and a lower support beam (distribution rod segment), the upper support beam and the lower support beam being arranged at a distance from one another and, for example, connected to one another via at least one strut, i.e. a strut construction.

The pivoting device can, for example, be designed in the manner of a hinge joint or, preferably, in an articulated manner. Here, a first distribution linkage section, for example an upper first support beam, 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, can be located between the legs, the tab area being mounted such that it can pivot about a bearing journal. The bearing journal 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 journal 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-cone-shaped (conical or truncated cone-shaped) 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, in order 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 is hinge-like or articulated or preferably articulated and / or to one another are arranged. 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 or preferably 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 bearing journal passage area can, for example, be designed as a round through hole, which is at least completely traversed in the longitudinal direction by the bearing journal.

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

The cone-shaped cone-shaped bearing journal section can, for example, be conical or frustoconical. The cone-shaped 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 cone-shaped cone-shaped bearing journal section can also be produced relatively easily, for example.

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

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 in their cross-sections in opposite directions, preferably taper continuously.

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.

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 make contact with the conical bearing 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 journal receiving area can here 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.

A second 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.

According to a further aspect of the invention it can be provided that the distribution linkage has at least one distribution linkage section designed as a rolling profile.

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

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

• • 1 eine perspektivische Ansicht eines Ausführungsbeispiels eines Verteilgestänges;
• • 2 einen Teilbereich des in 1 dargestellten Verteilgestänges;
• • 3 eine Seitenansicht des in 2 dargestellten Teilbereichs des Verteilgestänges;
• • 4 eine Seitenansicht des in 2 dargestellten Teilbereichs des Verteilgestänges mit einer Schnittansicht einer ersten und einer zweiten Schwenkeinrichtung;
• • 5 eine vergrößerte Ansicht der in 4 in einer Schnittdarstellung gezeigten ersten Schwenkeinrichtung; und
• • 6 eine vergrößerte Ansicht der in 4 in einer Schnittdarstellung gezeigten zweiten Schwenkeinrichtung.

Show it:

• • 1 a perspective view of an embodiment of a distribution linkage;
• • 2 part of the in 1 illustrated distribution linkage;
• • 3 a side view of the in 2 part of the distribution linkage shown;
• • 4th a side view of the in 2 the illustrated partial area of the distribution linkage with a sectional view of a first and a second pivot device;
• • 5 an enlarged view of the in 4th first pivot device shown in a sectional view; and
• • 6th an enlarged view of the in 4th 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 an embodiment of a distribution linkage ( 100 ) with three distribution linkage segments ( 100A , 100B , 100C ), which are connected to each other via pivoting devices (30, 31 , 32 ) are pivotably mounted and thus coupled to each other pivotably.

The distribution linkage ( 100 ) is shown in an unfolded, i.e. swiveled-out state (operating state). The distribution linkage ( 100 ) extends lengthways ( L. ) from its root area ( W. ) to its outside area ( A. ). In the root area ( W. ) is the distribution linkage ( 100 ) via coupling and storage facilities with a mobile agricultural machine (in 1 not shown for reasons of better illustration) pivotably connectable and / or coupled.

The first distribution linkage segment ( 100A ) has an upper first distribution rod section ( 1A ) and a lower first distribution rod section ( 1B ) on. The upper first distribution rod section ( 1A ) is an external first roof rack, that is, an upper first support beam ( 1A ). The lower first distribution rod section ( 1B ) is an external first floor support, i.e. a lower first support beam ( 1B ). The upper first support beam ( 1A ) and the lower first support beam ( 1B ) are arranged at a distance from each other and over a tubular strut construction ( 20th ) connected to each other in sections. The tubular strut construction ( 20th ) preferably runs along the longitudinal extension ( L. ) of the upper first support beam ( 1A ) and the lower first support beam ( 1B ).

The second distribution linkage segment ( 100B ) has an upper second distribution rod section ( 2A ) and a lower second distribution rod section ( 2 B ) on. The upper second distribution boom section ( 2A ) is an external, second roof rack, that is, an upper, second support beam ( 2A ). The lower second distribution boom section ( 2 B ) is an external second floor support, i.e. a lower second support beam ( 2 B ). The upper second support beam ( 2A ) and the lower second support beam ( 2 B ) are arranged at a distance from each other and over a tubular strut construction ( 20th ) connected to each other in sections. The tubular strut construction ( 20th ) preferably runs along the longitudinal extension ( L. ) of the upper second support beam ( 2A ) and the lower second support beam ( 2 B ).

The first distribution linkage segment ( 100A ) and the second distribution linkage segment ( 100B ) are via a first swivel device ( 31 ) and a second swivel device ( 32 ) pivotally mounted to each other. In other words, the upper first support beam ( 1A ) via the first swivel device ( 31 ) with the upper second support beam ( 2A ) coupled pivotably as well as the lower first support beam ( 1B ) via the second swivel device ( 32 ) with the lower second support beam ( 2 B ) coupled to pivot.

The third distribution linkage segment ( 100C ), which is not described in more detail here, is via a third swivel device ( 33 ), which is not described in any more detail here, with the second distribution linkage segment ( 100B ) coupled to pivot.

Thus, by means of the swivel devices ( 31 , 32 , 33 ) a distribution linkage ( 100 ) are provided, which can be converted into a folded or collapsed state, for example, for transport.

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

2 shows a perspective view of a portion of the in 1 shown distribution linkage ( 100 ). 2 shows the coupling area between the first distribution linkage segment ( 100A ) and the second distribution linkage segment ( 100B ) via the first and second swivel device ( 31 , 32 ). In other words, the coupling of the upper first support beam ( 1A ) (upper first distribution rod section) and the upper second support beam ( 2A ) (upper second distribution rod section) via the first pivoting device ( 31 ) as well as the coupling of the lower first support beam ( 1B ) (lower first distribution rod section) and the lower second support beam ( 2 B ) (lower second distribution rod section) via the second pivoting device ( 32 ) (here mostly hidden).

At the forehead ( SE_1A ) of the upper first support beam ( 1A ) there is an upper first coupling structure ( 1KS_1A ) and at the front end ( SE_2A ) of the upper second support beam ( 2A ) there is an upper second coupling structure ( 2KS_2A ).

At the forehead ( SE_1B ) of the lower first support beam ( 1B ) there is a lower first coupling structure ( 1KS_1B ) and at the front end ( SE_2B ) of the lower second support beam ( 2 B ) there is a lower second coupling structure ( 2KS_2B ).

The upper first coupling structure ( 1KS_1A ) can be attached to the upper first support beam ( 1A ) for example by means of a welded connection or a screw connection (not shown in more detail here) on the upper first support beam ( 1A ) be attached. The same can, for example, also apply to the upper second coupling structure ( 2KS_2A ), the lower first coupling structure ( 1KS_1B ) and / or the lower second coupling structure ( 2KS_2B ) hold true.

The first swivel device ( 31 ) comprises an area of the upper first coupling structure ( 1KS_1A ) and an area of the upper second coupling structure ( 2KS_2A ), which are designed to be articulated to one another so that the first distribution linkage segment ( 100A ) and the second distribution linkage segment ( 100B ) pivotable around the pivot axis ( SA ) coupled, i.e. stored.

The first swivel device ( 31 ) has in relation to the upper first coupling structure ( 1KS_1A ) a fork-shaped or U-shaped area with two legs, wherein between the two legs of the upper first coupling structure ( 1KS_1A ) the upper second coupling structure ( 2KS_2A ) intervenes.

Via one in the first coupling structure above ( 1KS_1A ), i.e. the legs of the upper first coupling structure ( 1KS_1A ) attached bearing journals ( 5 ) is the upper second coupling structure ( 2KS_2A ) around the bearing journal ( 5 ) pivotally mounted.

The bearing journal ( 5 ) is here in two bearing journal receiving areas, preferably comprising through bores, by means of a conical connection in each case releasable in the upper first coupling structure ( 1KS_1A ) attached. More detailed explanations can be found in the illustration in 5 and the corresponding description.

The above remarks on the first swivel device ( 31 ) apply analogously to the second swivel device ( 32 ), what a 2 is covered. With regard to the second swivel device ( 32 ) is in 2 only partially the lower first coupling structure ( 1KS_1B ) and the lower second coupling structure ( 2KS_2B ) shown.

Thus the first distribution linkage segment ( 100A ) and the second distribution linkage segment ( 100B ) around the respective bearing journal ( 5 ) the first and the second swivel device ( 31 , 32 ), which preferably have a common swivel axis ( SA ) define, pivotably arranged or stored.

In addition, contact (without going into further detail) the upper first coupling structure ( 1KS_1A ) and the upper second coupling structure ( 2KS_2A ) as well as the lower first coupling structure ( 1KS_1B ) and the lower second coupling structure ( 2KS_2B ) on opposite areas that are spaced apart from the pivoting devices and each have a threaded bolt for contacting the first distribution linkage segment ( 100A ) compared to the second distribution linkage segment ( 100B ) position accordingly, i.e. to be able to align.

In the following the swivel mechanism, especially the arrangement of the bearing journal ( 5 ) based on the other 3 until 6th explained in more detail.

3 shows a side view (view C) of the in 2 the part of the distribution linkage shown ( 100 ), i.e. the coupling area between the first distribution rod segment ( 100A ) and the second distribution linkage segment ( 100B ) via the first and second swivel device ( 31 , 32 ). For a better illustration, the bearing journal ( 5 ) the first and the second swivel device ( 31 , 32 ) is not shown.

In this view the upper first coupling structure ( 1KS_1A ), the upper second coupling structure ( 2KS_2A ), the lower first coupling structure ( 1KS_1B ) and the lower second coupling structure ( 2KS_2B ) good to see.

The upper first coupling structure ( 1KS_1A ) and the lower first coupling structure ( 1KS_1B ) have a U-shaped design with two legs spaced apart from one another, which is described in more detail below.

The upper second coupling structure ( 2KS_2A ) and the lower second Coupling structure ( 2KS_2B ) protrude at least in sections into the leg area, i.e. in sections between the legs of the upper first coupling structure ( 1KS_1A ) and the lower first coupling structure ( 1KS_1B ).

The first swivel device ( 31 ) and the second swivel device ( 32 ) are preferably positioned or aligned in such a way that they share a common pivot axis ( SA ), and which form the second distribution linkage segment ( 100B ) compared to the first distributor linkage segment ( 100A ) can perform a pivoting movement.

4th shows a side view (view C) of the in 2 the part of the distribution linkage shown ( 100 ) analogous to 3 , but the first pivoting device ( 31 ) and the second swivel device ( 32 ) are shown in a sectional view.

In particular, the bearing journal ( 5 ) the first and the second swivel device ( 31 , 32 ) good to see. The two bearing journals ( 5 ) the first and the second swivel device ( 31 , 32 ) are, as already shown above, in the upper first coupling structure ( 1KS_1A ) and in the lower first coupling structure ( 1KS_1B ) added, i.e. releasably attached, that they share a common pivot axis ( SA ) define around which the first distributor rod segment ( 100A ) compared to the second distribution linkage segment ( 100B ) is pivotably mounted.

The further construction of the first swivel device ( 31 ) and the second swivel direction ( 32 ) of the distribution linkage ( 100 ) is used in the following description of the representations in the 5 and 6th explained in more detail.

5 FIG. 13 shows an enlarged view (view X) of FIG 4th first pivoting device shown in a sectional view ( 31 ).

The first swivel device ( 31 ) couples the upper first support beam ( 1A ) and the upper second support beam ( 2A ) via the upper first coupling structure ( 1KS_1A ) and the upper second coupling structure ( 2KS_2A ), which by means of a bearing journal ( 5 ) are mounted such that they can pivot with respect to one another.

The upper first coupling structure ( 1KS_1A ) is in the area of the first swivel device ( 31 ) U-shaped with two spaced-apart legs and has a first bearing journal receiving area in the section of the legs ( 1ZA_1A ) and a second journal receiving area ( 2ZA_1A ) on. Both the first journal receiving area ( 1ZA_1A ) as well as the second bearing journal receiving area ( 2ZA_1A ) preferably comprises a first and a second circular through hole, which forms a cylindrical inner surface.

So that the bearing journal ( 5 ) when assembling the distribution linkage ( 100 ) into the upper first coupling structure ( 1KS_1A ) can be inserted, the through-holes of the first journal receiving area ( 1ZA_1A ) and the second journal receiving area ( 2ZA_1A ) formed concentrically to one another and with the same diameter and preferably by means of a drilling process.

Between the legs of the upper first coupling structure ( 1KS_1A ), i.e. the first and the second journal receiving area ( 1ZA_1A , 2ZA_1A ) there is a section of the upper second coupling structure ( 2KS_2A ) with a journal passage area ( ZD_2A ), which preferably comprises a circular through hole.

The bearing journal ( 5 ) is in the shown embodiment of the distribution linkage according to the invention ( 100 ) preferably made in one piece from a metallic material, for example a high-strength steel.

The bearing journal ( 5 ) is on the top first coupling structure ( 1KS_1A ) releasably attached in two areas or sections, preferably in the axial direction and in the radial direction, which will be explained in more detail below.

For this purpose, the bearing journal ( 5 ) a first conical, i.e. frustoconical, bearing journal section ( 51K ) and a second conical, i.e. frustoconical, bearing journal section ( 52K ), the first conical journal section ( 51K ) and the second conical journal section ( 52K ) are spaced apart, preferably via a cylindrical journal section ( 5Z ).

The bearing journal ( 5 ) is therefore preferably rotationally symmetrical and / or as a double-cone bearing journal ( 5 ) educated. At the in 5 It can also be seen that the first conical bearing journal section ( 51K ) and the second conical journal section ( 52K ) taper in their cross-sections in opposite directions. In other words, the outer diameter of the first and second tapered journal sections ( 51K , 52K ) to the respective front end of the bearing journal ( 5 ) in the direction of the longitudinal extension.

Preferably the bearing journal ( 5 ) designed such that at least the first conical journal section ( 51K ) in the through hole of the first journal receiving area ( 1ZA_1A ) and at least the second conical journal section ( 52K ) in the through hole of the second journal receiving area ( 2ZA_1A ) is located.

So that the first swivel device ( 31 ) at least one conical connection ( 51K , 6A ; 52K , 6B ) forms, is now on the first conical journal section ( 51K ) a first cylindrical bush ( 6A ) or a first cylindrical sleeve ( 6A ) attached with an inner cone, that is, a cone-shaped inner surface. The conical inner surface is complementary to the first conical bearing journal section ( 51K ) educated. The first cylindrical bushing or sleeve ( 6A ) is installed on the first conical journal section ( 51K ) attached.

The first swivel device ( 31 ) indicates in the area of the bearing journal ( 5 ) also a second cone connection ( 52K , 6B ), which through the second conical journal section ( 52K ) and a second cylindrical bush ( 6B ) or a second cylindrical sleeve ( 6B ) is formed with an inner cone, that is, a conical inner surface. The conical inner surface is complementary to the second conical bearing journal section ( 52K ) educated. The second cylindrical bushing or sleeve ( 6B ) is installed on the second conical bearing journal section ( 52K ) attached.

The bearing journal ( 5 ) also includes a circular through-hole for receiving a clamping bolt or preferably a threaded bolt here ( 8A ).

The threaded bolt ( 8A ), preferably a threaded bolt with a flat head, can be attached to one end of the bearing journal ( 5 ) into the through hole of the bearing journal ( 5 ) and preferably together with a first fitted washer ( 7A ) in the bearing journal ( 5 ) are inserted and the bearing journal ( 5 ) penetrate along its length.

The inner and outer diameter of the first shim washer (7) is designed in such a way that, on the one hand, it forms a flat head section of the threaded bolt with one side, i.e. one surface. 8A ) and on the other hand with the outside, i.e. the circular outer surface of the first socket ( 6A ) contacted.

At the other end of the journal ( 5 ) the threaded bolt penetrates ( 8A ) preferably the bearing pin ( 5 ) and protrudes, that is, extends at least to accommodate a nut ( 8B ) (in 5 shown schematically) and a second shim washer over the bearing journal ( 5 ) out.

The second shim ring ( 7B ) is preferably identical to the first shim ring ( 7A ) educated.

Both the first socket ( 6A ) and the second socket ( 6B ) is in contact with the first and the second cone-shaped bearing journal section ( 51K , 52K ) in the area of the through bores of the first and second bearing journal receiving area ( 1ZA_1A , 2ZA_1A ) and protrudes beyond in order to at least for the formation of a first and a second conical connection ( 51K , 6A ; 52K , 6B ), and thus an interference fit, to be able to be moved in the axial direction of the bearing journal.

By so-called tightening of the mother ( 8B ) on the threaded bolt ( 8A ) during the assembly process of the first swivel device ( 31 ) and thus of the bearing journal ( 5 ) contact and press the first and second shim ring ( 7A , 7B ) gradually against the circular outer surfaces of the first and second bushes ( 6A , 6B ) in the axial direction, i.e. in the direction of the longitudinal extension of the bearing journal ( 5 ).

There is then a further mutual, section-wise displacement of the first conical bearing journal section ( 51K ) opposite the inner cone of the first bush ( 6A ) as well as a mutual displacement of the second conical bearing journal section in sections ( 52K ) opposite the inner cone of the second bush ( 6B ).

Due to the conical design of the contacting surfaces of the bearing journal ( 5 ) and the first and second socket ( 6A , 6B ) is associated with it in the first bearing journal receiving area ( 1ZA_1A ) the upper first coupling structure ( 1KS_1A ) and preferably at the same time in the second bearing journal receiving area ( 2ZA_1A ) the upper first coupling structure ( 1KS_1A ) one conical connection each ( 51K , 6A ; 52K , 6B ) and thus created a press connection.

The cylindrical outer surfaces of the first and second bushes ( 6A , 6B ) form an interference fit in the area of the through hole on the inner surface of the first and second pin receiving area ( 1ZA_1A , 2ZA_1A ). The bearing journal ( 5 ), here double cone bearing journals ( 5 ), can thus be in a defined position in the first swivel device ( 31 ) are attached.

Around the cylindrical journal section ( 5Z ), which is preferably located between the legs of the upper first coupling structure ( 1KS_1A ), that is, between the first and the second journal receiving section ( 1ZA_1A , 2ZA_1A ) is located, the second coupling structure is now preferably ( 2KS_2A ) of the second distribution rod section ( 2A ), here the upper second support beam ( 2A ), pivoted.

The second coupling structure ( 2KS_2A ) includes a journal passage area ( ZD_2A ), which has a continuous recess, preferably a through hole.

To get the second coupling structure ( 2KS_2A ) to be pivoted with low wear and tear and maintenance-free, includes the journal passage area ( ZD_2A ) a bearing bush ( 4A ). The bearing bush ( 4A ) is preferably cylindrical and comprises a circumferential projection at one end for contacting the second coupling structure ( 2KS_2A ) with the bearing bush ( 4A ) in the axial direction, i.e. in the direction of the longitudinal extension of the bearing journal ( 5 ).

The bearing bush ( 4A ) can be combined with the journal passage area ( ZD_2A ) be pressed, for example, that is, at least in sections, form a cylindrical interference fit. The bearing bush ( 4A ) also preferably has a cylindrical inner surface, which is provided with a plain bearing ( 9 ) or a roller bearing ( 9 ), which in turn is preferably connected to the cylindrical journal section ( 5Z ) contacted, thus forces in the radial direction in relation to the bearing journal ( 5 ) transmits and thus a first swivel bearing ( 31 ) between the upper first support beam ( 1A ) and the upper second support beam ( 2A ) trains.

The plain bearing ( 9 ) can for example be a sliding bushing or sliding sleeve made of a metallic alloy, for example based on a copper-tin alloy, or made of a plastic, preferably based on a composite material.

Preferably the plain bearing ( 9 ) also include a lubricant, preferably a lubricating grease. The roller bearing ( 9 ) can preferably comprise a metallic needle roller bearing with a lubricant, preferably lubricating grease.

It is possible that the plain bearings ( 9 ) or the roller bearing ( 9 ) a sealing element ( 10 ) between the bearing journal ( 5 ) and the bearing bush ( 4A ) or at the ends of the plain bearing ( 9 ) or the roller bearing ( 9 ) a separate sealing element each ( 10 ) is arranged.

The sealing element ( 10 ) can be designed, for example, as an O-ring or as a scraper ring and / or preferably on an inner surface of the bearing bush ( 4A ) be included.

6th FIG. 13 shows an enlarged view (view Y) of FIG 4th Second pivoting device shown in a sectional view ( 32 ).

The second swivel device ( 32 ) is compared to the in 5 illustrated first swivel device ( 31 ) almost identical, which is why a (repeated) description of the same or functionally equivalent components or elements is dispensed with.

At the in 6th shown second swivel device ( 32 ) is instead of the bearing bush ( 4A ) an eccentric bushing ( 4B ) in the journal passage area ( ZD_2B ) the second coupling structure ( 2KS_2B ) of the lower second support beam ( 2 B ) arranged.

The eccentric bush ( 4B ) preferably has a cylindrical outer surface and preferably for receiving or contacting a plain bearing ( 9 ) or a roller bearing ( 9 ) a cylindrical inner surface, wherein the outer surface and the inner surface are not concentric to one another, that is, do not have a common central axis.

The provision of an eccentric bush ( 4B ) enables in relation to the bearing journal ( 5 ) of the second swivel device ( 32 ) an adjustable bearing. By turning the eccentric bush ( 4B ) in the journal passage area ( ZD_2B ) the position of the second coupling structure ( 2KS_2B ) to the journal ( 5 ) of the second swivel device ( 32 ) set or change. The eccentric beech ( 4B ) can, for example, by means of a splined shaft connection or a splined shaft connection with the journal passage area ( ZD_2B ) be releasably attached.

After the second coupling structure ( 2KS_2B ) with the lower second support beam ( 2 B ) is connected and this in turn via the strut construction ( 20th ) with the upper second support beam ( 2A ) to form the second distribution linkage segment ( 100B ) (see the 1 until 4th ), the pivoting mounting of the first distribution linkage segment ( 100A ) to the second distribution linkage segment ( 100B ) if necessary by rotating the eccentric bushing accordingly ( 4B ) in the journal passage area ( ZD_2B ) can be easily adjusted, i.e. adapted.

Thus, for example, on the one hand, manufacturing tolerances can be compensated and, on the other hand, a backlash-free pivoting mounting of the first and the second distribution linkage segment ( 100A , 100B ) can be guaranteed.

The eccentric bush ( 4B ) contacted the in 6th shown sectional view of the second swivel device ( 32 ) via a shown thrust washer ( 11th ) furthermore, in sections, an inner surface of the second pin receiving area ( 2ZA_1B ) of the first coupling structure ( 1KS_1B ) of the lower first support beam ( 1B ). This supports the second coupling structure ( 2KS_2B ) at the first coupling structure ( 1KS_1B ) from and among other things, the first distribution linkage segment ( 100A ) the second distribution linkage segment ( 100B ).

The thrust washer ( 11th ) can preferably be formed from a metallic material or a metallic alloy. It is also possible that the thrust washer ( 11th ) is made of a metal-plastic composite material.

To avoid water and / or dirt penetration, the thrust washer ( 11th ) a sealing element ( 12th ), which covers the area between the eccentric bush ( 4B ) and the inside of the second journal receiving area ( 2ZA_1B ) covers.

Furthermore, for example in the area of the thrust washer ( 11th ) a lubricant, for example a grease, is located to reduce friction and thus wear during a pivoting process of the distribution linkage ( 100 ) to reduce.

Via the first and the second swivel device ( 31 , 32 ), i.e. their respective bearing journals ( 5 ) a swivel axis ( SA ) around which the first distributor linkage segment ( 100A ) to the second distribution linkage segment ( 100B ) of the distribution linkage ( 100 ) is pivotably mounted.

The two swivel devices ( 31 , 32 ) of the illustrated embodiment of the distribution linkage ( 100 ) are structurally similar in terms of the swivel mechanism as a double cone system ( 5 ; 51K , 6A ; 52K , 6B ) educated.

As already shown above, a robust, maintenance-free and play-free, yet lightweight, pivotable mounting of distribution rod sections ( 1A , 2A ; 1B , 2 B ; 100A , 100B ) in the form of support bars ( 1A , 2A ; 1B , 2 B ) or distribution linkage segments ( 100A , 100B ) to be provided.

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 first distribution rod section, upper first support beam

1B

lower first distribution rod section, lower first support beam

1KS_1A

upper first coupling structure

1KS_1B

lower first coupling structure

1ZA_1A

first journal receiving area of the upper first coupling structure

1ZA_1B

first journal receiving area of the lower first coupling structure

2A

upper second distribution rod section, upper second support beam

2 B

lower second distribution rod section, lower second support beam

2KS_2A

upper second coupling structure

2KS_2B

lower second coupling structure

2ZA_1A

second journal receiving area of the upper first coupling structure

2ZA_1B

second journal receiving area of the lower first coupling structure

31

first swivel device

32

second swivel device

33

third swivel device

4A

Bearing bush

4B

Eccentric bushing

5

Journal

5B

Through hole of the bearing journal

5Z

cylindrical journal section

51K

first conical journal section

52K

second conical journal section

6A

first socket

6B

second socket

7A

first shim

7B

second shim

8A

Threaded bolt

8B

mother

9

Plain bearings, roller bearings

10

Sealing element

11th

Thrust washer

12th

Sealing element

20th

Strut construction

100

Distribution linkage

100A

first distribution linkage segment

100B

second distribution linkage segment

100C

third distribution linkage segment

A.

Outdoor area

L.

Longitudinal extension

SA

Swivel axis

SE_1A

Front end of the upper first support beam

SE_2A

Front end of the upper second support beam

SE_1B

Front end of the lower first support beam

SE_2B

Front end of the lower second support beam

W.

Root area

ZD_2A

Journal passage area of the upper second coupling structure

ZD_2B

Journal passage area of the lower second coupling structure

Claims (17)

Distribution rods (100) for the distribution of liquid and / or solid media, preferably for a mobile agricultural distribution machine, with a first distribution rod section (1A, 1B) and a second distribution rod section (2A, 2B), the first distribution rod section (1A, 1B) and the second distribution rod section (2A, 2B) are coupled to one another via a pivoting device (31, 32), characterized in that the pivoting device (31, 32) for the pivotable mounting of the first distribution rod section (1A, 1B) with respect to the second distribution rod section (2A, 2B) comprises a bearing pin (5) which in sections forms at least one conical connection (51K, 6A; 52K, 6B) for releasable attachment to the first distribution rod section (1A, 1B). Distribution linkage (100) Claim 1 , whereby to form the pivoting device (31, 32) the first distribution rod section (1A, 1B) at one end (SE_1A, SE_1B) has a first coupling structure (1KS_1A, 1KS_1B) and the second distribution rod section (2A, 2B) at one end (SE_2A, SE_2B) has a second coupling structure (2KS_2A, 2KS_2B), which are preferably designed to be articulated and / or arranged to one another, and at least in sections are penetrated by the bearing pin (5). Distribution linkage (100) Claim 2 , wherein the bearing journal (5) is received via the at least one conical connection (51K, 6A; 52K, 6B) in sections in a first bearing journal receiving area (1ZA_1A, 1ZA_1B) of the first coupling structure (1KS_1A, 1KS_1B) in order to be able to communicate with the first coupling structure (1KS_1A, 1KS_1B) to form an interference fit. Distribution linkage (100) Claim 3 , wherein the first coupling structure (1KS_1A, 1KS_1B) has a second bearing journal receiving area (2ZA_1A, 2ZA_1B) which is spaced from the first bearing journal receiving area (1ZA_1A, 1ZA_1B), preferably in the longitudinal extent of the bearing journal (5) to receive the bearing journal (5) . Distribution linkage (100) according to one of the preceding Claims 2 until 4th , wherein the second coupling structure (2KS_2A, 2KS_2B) comprises a bearing journal passage area (ZD_2A, ZD_2B), via which the second coupling structure (2KS_2A, 2KS_2B) is pivotably mounted about the bearing journal (5). Distribution linkage (100) according to one of the preceding claims, wherein the bearing journal (5) has at least one first conical bearing journal section (51K) for forming the at least one conical connection (51K, 6A). Distribution linkage (100) Claim 6 , wherein the bearing journal (5) has a second conical journal section (52K) in order to form a second conical connection (52K, 6B), wherein the first conical journal section (51K) and the second conical journal section (52K) are spaced from one another and / or over a cylindrical journal section (5Z) are connected to one another. Distribution linkage (100) Claim 7 , wherein the first conical journal section (51K) and the second conical Trunnion section (52K) taper in opposite directions in their cross-sections. Distribution linkage (100) according to one of the Claims 5 until 8th , with a bearing bush (4A) or an eccentric bushing (4B) between the bearing journal (5), preferably between a cylindrical bearing journal section (5Z) of the bearing journal (5), and the second coupling structure (2KS_2A, 2KS_2B) in the journal passage area (ZD_2A, ZD_2B) to adjust the position of the second coupling structure (2KS_2A, 2KS_2B) opposite the bearing journal (5), the bearing bushing (4A) or the eccentric bushing (4B) in the bearing journal passage area (ZA_2A, ZA_2B) preferably releasably non-rotatably with the second coupling structure (2KS_2A , 2KS_2B) is connected. Distribution linkage (100) Claim 9 , wherein a sliding bearing (9) or a roller bearing (9) is arranged between the bearing journal (5), preferably between the cylindrical bearing journal section (5Z) of the bearing journal (5), and the bearing bush (4A) or the eccentric bushing (4B). Distribution linkage (100) Claim 10 At least one sealing element (10) is arranged between the bearing journal (5), preferably between the cylindrical bearing journal section (5Z) of the bearing journal (5), and the bearing bush (4A) or the eccentric bushing (4B), around the area of the sliding bearing (9) or the roller bearing (9) to be sealed. Distribution linkage (100) according to one of the preceding Claims 6 until 11th , wherein the at least one conical connection (51K, 6A; 52K, 6B) comprises at least one bushing (6A, 6B) which at least regionally contacts the first conical journal section (51K, 52K) with its inner surface and at least regionally the first journal receiving area with its outer surface (1ZA_1A, 1ZA_1B) contacted. Distribution linkage (100) according to one of the preceding Claims 9 until 12th , the bearing bushing (4A) or the eccentric bushing (4B) being supported on the first coupling structure (1KS_1B) via a thrust washer (11). Distribution linkage (100) according to one of the preceding Claims 6 until 13th , wherein the bearing journal (5) has a through hole (5B) for receiving a threaded bolt (8A) in order to connect the first conical bearing journal section (51K) and the second conical bearing journal section (52K) together with a first bushing (6A) and a second bushing ( 6B) during the assembly process at the same time with the first bearing journal receiving area (1ZA_1A, 1ZA_1B) and the second bearing journal receiving area (2ZA_1A, 2ZA_1B) in contact and / or at the same time on the first bearing journal receiving area (1ZA_1A, 2ZA_Mounting area (2ZA_1B) and the second bearing journal receiving area (2ZA_aufnahmebereich) to fix. Distribution linkage (100) according to one of the preceding Claims 6 until 14th , wherein the first conical bearing journal section (51K) and the second conical bearing journal section (52K) and the cylindrical bearing journal section (5Z) are connected to one another, preferably are formed integrally in one piece as double conical bearing journals (5). Distribution linkage (100) according to one of the preceding Claims 1 until 15th , wherein the distribution rod (100) has at least one distribution rod section (1A, 1B) designed as a rolling profile. Mobile agricultural distributing machine with at least one distributing rod (100) according to one of the preceding Claims 1 until 16 , wherein the mobile agricultural distributor is preferably a field sprayer or a fertilizer spreader.

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