Flow device for at least partially guiding a flow of conveyed material, dispenser head for an agricultural

Abstract

The invention relates to a flow device (1) for at least partially guiding a flow (F) of conveyed material in a distributor head (50) of an agricultural sowing machine (100), the flow device (1) being configured to generate an at least partially rotating or at least partially helical flow (F) of conveyed material. Further, the invention relates to a dispenser head (50) for an agricultural sowing machine (100) for dispensing particulate material to a plurality of spreading lines (102) and to an agricultural sowing machine (100).

Description

[0001] The invention relates to a flow device for at least partially guiding a flow of conveyed material in a distributor head and a distributor head for an agricultural spreader. The invention also relates to an agricultural spreader having a distributor head.

[0002] Agricultural spreaders such as seed drills often use a distributor for granular materials such as seeds, fertilizers, etc. This distributor is called a distributor head.

[0003] The distributor head is usually connected to a pneumatic feed line on the input side. On the output side, the distributor head comprises a plurality of evenly distributed output channels, each of which is connected to one end of a spreading line. The other end of the spreading line is connected to a delivery device of an agricultural spreader. The granular material is delivered to an agriculturally usable area by means of a delivery device, such as a sowing coulter (see, for example, DE 102008 050 735 A1).

[0004] Against this background, it has been found that even distribution of the granular material from the distributor head into the delivery channel and thus into the spreading line cannot be ensured when the spreader is travelling over an agricultural field with a certain slope.

[0005] It is therefore an object of the present invention to distribute granular material evenly in a distributor head, even if the distributor head is inclined or is used in an agricultural area with a certain slope.

[0006] This object is achieved according to the invention by the independent claims. Further advantageous embodiments are subject matter of the subclaims.

[0007] A first aspect of the invention comprises a flow device for at least partially directing a flow of delivered material in a distributor head of an agricultural spreader.

[0008] The flow device is configured to generate an at least partially rotating or at least partially helical flow of conveyed material.Thus, the flow device may be configured to generate an at least partially rotating or at least partially helical flow of conveyed material from an axially flowing flow of conveyed material.

[0009] In other words, the flow device can be configured to at least partially rotate the conveyed material flow flowing along the axial direction, so that the conveyed material flow continues to flow along the axial direction and rotate. In this way, the flow device converts the conveyed material flow flowing along the axial direction into a conveyed material flow that is at least partially rotating or at least partially spiral.

[0010] In other words, the flow device can be configured to add a circumferential or tangential flow component, an axial flow component and / or a radial flow component to the flowing conveyed material flow. The flow device can also be configured to generate a swirl at least partially from the conveyed material flow flowing along the axial direction. A swirl is a rotationally symmetrical flow having a flow component in the circumferential direction. In the case where a swirl exists in a pipeline, for example, there is a flow component along the axial direction in addition to the circumferential flow component. Then, the conveyed material or particulate material of the flow of the conveyed material flow moves along one or more spiral paths. In a certain pipeline length, at the same flow velocity, the conveyed material covers a longer distance along the pipeline wall compared to the flow without swirl flow. Due to the rotation or spiral movement of the conveyed material flow, the accumulation of particulate material can be avoided in the distributor head for spreading particulate material of the agricultural spreader when the distributor head is tilted in the inclined available area.

[0011] In the present application, the conveyed material flow may include air and particulate material. In addition, the conveyed material flow may flow along the axial direction and / or along the axial direction of the flow device or toward the flow device. For example, the conveyed material flow may also impact the flow device along the axial direction and interact with it.

[0012] Furthermore, the flow device may extend in the axial direction, radial direction, as well as circumferential direction or tangential direction to form a spatial body.

[0013] Further, the flow device can, for example, divide the conveyed material flow into an inner part and an outer part when the conveyed material flow flows through the flow device. The outer part completely surrounds the inner part so that the outer part contacts or interacts with the flow device and the inner part contacts and interacts with the outer part.

[0014] Furthermore, the outer part can simulate a hollow cylindrical shape and the inner part can simulate a cylindrical shape, wherein the inner cylindrical part completely fills the outer hollow cylindrical part. Thus, the flow device contacts the outer part and the inner part contacts the outer part. The interaction between the flow device and the conveyed material flow or between the flow device and the outer part of the conveyed material flow causes an at least partially rotating or at least partially spiral conveyed material flow to be generated. This can avoid accumulation of granular material in a distributor head of an agricultural spreader for distributing granular material when the distributor head is tilted in a tilted agricultural area.

[0015] Further, the flow device comprises at least one flow guide for generating an at least partially rotating or at least partially spiraling conveyed material flow. In other words, the flow device can comprise at least one flow guide for at least partially turning or rotating the conveyed material flow and / or for turning and rotating at least the outer part of the conveyed material flow.

[0016] Here, at least one flow guide is configured to act on the conveyed material flow from the outside or only from the outside, thereby adding a movement component or flow component in a tangential and / or radial and / or axial direction to at least one outer part of the conveyed material flow, wherein the outer part completely surrounds the inner part of the conveyed material flow. Furthermore, the outer part and / or the inner part of the conveyed material flow can be oriented in the same direction as the axial direction of the flow device. As a result, an at least partially spiral or at least partially rotating conveyed material flow is generated.

[0017] Further, at least one guide is configured to be adjustable. In this way, different flow rates and / or different characteristics of the conveyed material flow can be taken into account. A conveyed material flow that is at least partially spiral or at least partially rotating can be generated. At least one guide can be rotatable or rotatable around an axis, so as to achieve different angles of attack of at least one guide relative to the conveyed material flow. The flow device or the distributor head including the flow device can also be equipped with a slope detection system to detect the slope of the agriculturally usable area. Based on the detected slope, the control system can change the angle of attack so that the angle of attack is adjusted as the slope increases, thereby achieving a stronger spiral conveyed material flow. Conversely, as the slope decreases, the angle of attack can be adjusted by the control system, so that little or no spiral or rotating conveyed material flow is formed.

[0018] In aerodynamics, the angle of attack, also known as the angle of attack, is the angle between the direction of the incoming fluid or the conveyed material flow and the chord line of the profile or the chord line of at least one flow guide element. The profile can be, for example, a part configured like a wing, a rotor blade, a sail, a turbine blade or a part of at least one flow guide element.

[0019] At least one flow guide may comprise a resilient material, such as an elastomer, and / or a plastic and / or a steel, such as stainless steel, for example, to respond to expected wear and / or to minimize wear, for example when using a granular fertilizer.

[0020] Furthermore, at least one flow guide element can be configured as a flow element around which the flow bypasses or as a flow cross section through which the flow passes, so that a rotating or spiral conveyed material flow is at least partially formed.

[0021] Further, the flow device is configured so that the conveyed material flow can be introduced into the flow device and / or the conveyed material flow can flow through the flow device and / or the conveyed material flow can flow onto the flow device. The conveyed material flow is introduced into the flow device along the axial direction of the flow device or from the axial direction and / or the conveyed material flow flows through the flow device and / or the conveyed material flow flows toward the flow device. Thus, the flow device can act in various ways on the conveyed material flow that impacts the flow device along the axial direction, so that, for example, a rotation or spiral movement can be achieved when the conveyed material flow leaves the flow device.

[0022] The flow device may also include a wall. The wall at least partially or completely surrounds the flow device. The wall may also be configured to be rotationally symmetric or axially symmetric. This facilitates manufacturing and ensures low costs.

[0023] Furthermore, the wall may form or continue at least a portion of a wall of an inlet device of a distributor head of an agricultural spreader and / or at least a portion of a wall of a main conveyor of a distributor head of an agricultural spreader and / or at least a portion of a wall of a distribution device of a distributor head of an agricultural spreader. The flow device can thereby be mounted in a suitable and / or nearly adjacent position in the distributor head, thereby achieving a rotation or spiral movement of the conveyed material flow.

[0024] The wall may also be configured as a tube and / or hollow cylinder. This makes the flow device cost-effective to manufacture.

[0025] Furthermore, the wall can form a tubular and / or hollow cylindrical sector, which is similar to a circular sector. Accordingly, the wall can also form only a segment or part of a higher-level unit, such as the main conveyor of a distributor head. In this way, the flow device can be attached at any point in the distributor head to produce a rotation or spiral movement of the conveyed material flow.

[0026] In addition, the wall can be configured to be wavy in cross section along the direction in which the conveyed material flow hits the flow device and / or flows through the flow device. The flow device can be configured to be wavy in the axial direction. This can reduce the flow resistance in the flow device and guide the conveyed material flow to flow in the desired direction.

[0027] Furthermore, it can be arranged that in a cross section along the direction in which the conveyed material flow flows through or impacts the flow device or along the axial direction of the flow device, the wall comprises at least one valley region and at least one peak region. The at least one valley region and the at least one peak region can merge smoothly into each other, for example, to simulate a so-called bellows.

[0028] Further, at least one guide member can be configured similar to a guide vane or similar to a guide plate. Thus, a conveyed material flow that is at least partially rotating or at least partially spiral can be configured or generated. Both configurations can be used to guide the conveyed material flow. The guide vane can be configured similar to the guide vane of a jet engine. In this case, the guide vane is a blade fixed inside or on the housing or fixed inside or on the wall of the flow device. The guide vane can be a guide surface with an arc or arranged at a certain angle inside or on the wall of the pipe or channel or the flow device to affect the direction of the fluid or the conveyed material flow.

[0029] Alternatively or additionally, at least one guide element can be configured as a pin for guiding the conveyed material flow. Thus, an at least partially rotating or at least partially spiral conveyed material flow can be configured. The at least one guide element configured as a pin can be cylindrical or truncated cone. The at least one guide element configured as a pin can protrude from the wall of the flow device. Thus, the at least one guide element can interact with the conveyed material flow or influence at least one outer part of the conveyed material flow, thereby forming a spiral or rotating conveyed material flow in this way.

[0030] In addition, at least one guide configured as a pin forms an angle in the range of 90 degrees or 80 to 100 degrees relative to the surface of the wall of the flow device. Within this angle range, on the one hand, a spiral conveyed material flow can be formed, and on the other hand, at least one guide can be configured for mechanical robustness and easy implementation.

[0031] Alternatively or additionally, at least one flow guide can be configured as a fluid channel inside a wall of the flow device. Thus, an at least partially rotating or at least partially spiral flow of the conveyed material can be formed.

[0032] At least one flow guide can be arranged inside the wall of the flow device in order to add a movement component or a flow component to the conveyed material flow by the gas flow through the at least one flow guide in a tangential and / or radial and / or axial direction, for example relative to the flow device. In this way, an at least partially rotating or at least partially spiral conveyed material flow can be formed.

[0033] For increasing the displacement component or flow component in the tangential and / or radial and / or axial direction, an air flow can be added to the conveyed material flow by at least one flow guide and / or an air flow can be discharged by at least one flow guide. This means that air can be blown in and / or extracted by at least one flow guide.

[0034] The at least one flow guide can extend along a straight axis. This simplifies the production of the at least one flow guide inside the wall.

[0035] The flow device may further comprise a wall. The wall may at least partially or completely surround the flow device.

[0036] At least one flow guide element can be arranged inside the wall at an angle to the conveyed material flow or to the axial direction of the flow device.

[0037] Further, it is conceivable to arrange at least one flow guide inside the wall along the tangential and / or radial and / or axial direction of the flow device. In this way, at least one flow guide may already be aligned or oriented similar to the pitch and extend, for example, along the radial direction.

[0038] Furthermore, at least one flow guide may comprise an angle of less than 90 degrees or in the range of 20 to 60 degrees relative to the surface of the wall. This angle simulates a screw pitch, so that an at least partially rotating or at least partially helical flow of the conveyed material is generated.

[0039] Furthermore, at least one flow guide is arranged fixedly or adjustably or variably on or in the wall of the flow device. In this way, the flow device can be optimally adapted to the flow rate of the conveyed material flow and to the conveyed material flow to be conveyed, so that an at least partially rotating or at least partially spiraling conveyed material flow is generated. In addition, different rotating or spiraling conveyed material flows can be realized so that, for example, different changing inclinations of the spreader can be reacted to.

[0040] Alternatively or additionally, it is also possible that at least one flow guide is configured to be rotatable or variable relative to the wall of the flow device. In this way, at least one flow guide can be rotatable or alignable or fixed in an angle range of 0 to 60 degrees relative to an axis parallel to the axial direction of the conveyed material flow or the flow device. This means that the angle of attack of the at least one flow guide can be ideally adapted to the flow rate of the conveyed material flow and to the conveyed material to be conveyed and, for example, to the inclination of the distributor head in which the at least one flow guide is arranged. This means that a stronger or weaker rotation or spiral of the conveyed material flow can be set.

[0041] Furthermore, at least one flow guide element can be configured in a triangular shape. This allows a mechanically stable design and a fluid-mechanically advantageous configuration to produce an at least partially rotating or at least partially spiral conveyed material flow.

[0042] At least one flow guide may be configured like a spherical triangle and / or configured with a varying thickness. In this way, fluid mechanical aspects may be taken into account when optimizing the flow within the flow device.

[0043] The at least one flow guide may include at least one first and at least one second flow guide. The flow guides may be configured differently.

[0044] In this way, the at least one first flow guide and the at least one second flow guide comprise different volumes and / or differently shaped surfaces and / or different angles of attack. By means of this configuration, the flow device or at least one of its flow guides can be optimized.

[0045] Furthermore, at least one first flow guide and at least one second flow guide may include different angles of attack relative to the conveyed material flow and / or relative to the axial direction of the flow device. In this way, an at least partially rotating or at least partially spiral conveyed material flow can be simply and effectively generated while achieving low flow resistance.

[0046] In addition, at least one first flow guide and at least one second flow guide can be arranged in sequence along the direction of the conveyed material flow, which can promote the formation of a rotating or spiral conveyed material flow.

[0047] At least two guide members arranged successively along the conveyed material flow direction can be aligned with each other so that when viewed from the conveyed material flow direction or from the axial direction of the flow device, at least one first guide member and at least one second guide member partially overlap or do not overlap at all.

[0048] Furthermore, the at least one first flow guide element and the at least one second flow guide element may be aligned in mirror symmetry with each other.

[0049] Furthermore, at least two flow guide elements arranged successively along the flow direction of the conveyed material may be aligned with each other so that the side of the first flow guide element that is approached first is the shortest side of the at least one first flow guide element.

[0050] The first side of at least one guide element or the side of at least one first guide element, which the material flow first impacts, may also form a vertical angle or an angle between 81 and 99 degrees with respect to the wall of the flow device.

[0051] The second edge of at least one guide element or the impact edge of at least one second guide element may form an angle of between 15 and 40 degrees with respect to the wall of the flow device and continuously rise from the wall or extend away from the wall in the direction of the conveyed material flow.

[0052] Further, the flow means may comprise a first and / or second ring of flow guides and / or a plurality of rings of flow guides.The rings may also be referred to as a circular ring arrangement.

[0053] Furthermore, it is possible that the first and / or second ring can be configured as a cylinder and include a plurality of flow guides. In this way, the flow guides can be arranged to be evenly distributed along the circumference of the ring and / or aligned along the same spatial orientation. However, it is also conceivable that the flow guides can be irregularly distributed along the circumference of the ring.

[0054] In this case, the first ring may include at least one first flow guide and the second ring may include at least one second flow guide.

[0055] It can also be provided that the first and second rings can be arranged one behind the other in the direction of the flow of the conveyed material or in the axial direction of the flow device.

[0056] The first and second rings can also be arranged to deviate from each other. For example, the first and second rings can be arranged to deviate from each other so that the end of the first flow guide of the first ring arranged along the direction of the conveyed material flow or the end of the first flow guide of the first ring arranged along the axial direction of the flow device is arranged between the two starting ends of the two second flow guides of the second ring. In this way, the conveyed material flow flowing along the axial direction of the flow device can be effectively converted into a conveyed material flow that is at least partially rotating or at least partially spiral.

[0057] Furthermore, the first and second rings can be arranged to deviate from each other so that the first flow guide of the first ring is arranged between the two second flow guides of the second ring along the direction of the conveyed material flow. In this way, the conveyed material flow flowing along the axial direction of the flow device can be converted into an at least partially rotating or at least partially spiral conveyed material flow.

[0058] Further, the flow device may comprise a wall which together with the flow guide forms the first and / or second ring.

[0059] The flow device can also be configured in a modular manner, so that at least two flow devices can be connected to each other or can be detachably connected to each other. This allows, for example, simple adaptation and easy installation of the flow device on existing distributor heads.

[0060] The flow device may comprise at least one connection, at which two flow devices may be connected to one another by means of a material and / or friction fit and / or force fit.

[0061] Furthermore, at least two connecting portions may be distributed along the circumference of the flow device, thereby connecting two flow devices to each other.

[0062] The at least two connecting portions may also be arranged to be evenly distributed along the circumference of the flow device.

[0063] Further, the flow device may include at least one connecting portion, at which the flow device can be connected to the wall of the main conveyor of the distributor head of the agricultural spreader and / or the wall of the inlet device of the distributor head of the agricultural spreader and / or the wall of the distribution device of the distributor head of the agricultural spreader by material and / or friction and / or force fit.

[0064] A second aspect of the present invention includes a distributor head for an agricultural spreader for distributing granular material to a plurality of spreading lines.

[0065] It should be explicitly noted that the features of the flow device mentioned in the first aspect above can be applied to the dispenser head individually or in combination with each other.

[0066] A distributor head for an agricultural spreader for distributing granular material to a plurality of spreading lines includes an inlet device for connection to a feed line of the agricultural spreader.

[0067] The conveyed material flow comprising air and particulate material can be introduced into the distributor head or into the main conveyor of the distributor head through the feed line and / or inlet device. The feed line can be pneumatically pressurized to form the conveyed material flow.

[0068] The inlet device may include a constriction, for example, which may be configured as a nozzle. The constriction may thus be used to accelerate the conveyed material entering through the inlet device.

[0069] Further, the distributor head comprises a main conveyor for further conveying the conveyed material flow from the inlet device to the distribution device of the distributor head.

[0070] In addition, the distributor head comprises a distribution device for distributing and / or advancing the conveyed material flow into an output channel of the distributor head. Thus, the output channel leading from the distribution device can guide the conveyed material flow into a spreading line, wherein the spreading line leads to the delivery device.

[0071] Furthermore, it can be provided that the distribution device, the main conveyor and the inlet device can be connected in series along the axial direction. The conveyed material flow can flow through the distribution device, the main conveyor and the inlet device along the axial direction.

[0072] Furthermore, according to the first aspect, the distributor head comprises at least one flow guide element for at least partially guiding the flow of the conveyed material.

[0073] At least one flow guide may be arranged on the main conveyor.At least one flow guide may further form and / or continue the main conveyor.

[0074] The main conveyor can also be configured similar to a diffuser. In this way, the flow rate of the conveyed material flow can be reduced, so that at least one flow guide element of at least one flow device ensures that a spiral or rotating conveyed material flow is safely formed.

[0075] At least one flow device can be attached to or continue the wall of the main conveyor. This ensures a low resistance to the flow of the conveyed material.

[0076] At least one flow device may be arranged downstream and / or upstream of the main conveyor.

[0077] The characteristics "downstream" and "upstream" refer to the conveyed material flow or its flow direction.

[0078] At least one flow device or at least one flow guide thereof can also be arranged on the inner side of the main conveyor. Thus, a combined assembly can be achieved, thereby simplifying the assembly of the distributor head. In other words, at least one flow device can form at least part of the main conveyor.

[0079] Further, at least one flow device or at least one flow guide thereof can extend radially inwardly from the inner side of the main conveyor. Thus, at least one flow device can exert an influence on the conveyed material flow, thereby generating at least partially rotating or at least partially spiral conveyed material flow.

[0080] Furthermore, the at least one flow device may further form and / or continue a portion of a wall of the main conveyor.

[0081] Further, at least one flow device can be arranged on the inlet device. In this case, at least one flow device can be arranged downstream and / or upstream of the inlet device, or arranged before and / or after the inlet device.

[0082] In addition, at least one flow device or at least one flow guide thereof can be formed on the inner side of the inlet device. This allows for combined assembly, thereby simplifying the assembly of the distributor head. In other words, at least one flow device can form at least part of the inlet device.

[0083] Furthermore, at least one flow device or at least one flow guide thereof may extend radially inwards from the inside of the inlet device. Thus, at least one flow device may influence the conveyed material flow to generate an at least partially rotating or at least partially spiral conveyed material flow.

[0084] Furthermore, the at least one flow means may further form and / or continue part of a wall of the inlet means. This ensures a low resistance to the flow of the conveyed material.

[0085] Further, at least one flow device can be arranged on the distribution device. Thus, at least one flow device can be arranged upstream of the distribution device or before the distribution device.

[0086] Furthermore, at least one flow device or at least one flow guide thereof can be arranged on the inner side of the distribution device. In this way, a combined assembly can be achieved, which simplifies the assembly of the distributor head. In other words, at least one flow device can form at least part of the distribution device. In this way, a low resistance to the flow of the conveyed material can be ensured.

[0087] Furthermore, at least one flow device or at least one flow guide thereof can extend radially inwards from the inside of the distribution device. In this way, at least one flow device can influence the conveyed material flow to generate an at least partially rotating or at least partially spiral conveyed material flow.

[0088] It may also be provided that at least one flow device forms or continues a portion of a wall of the distribution device.

[0089] Further, at least one flow device can be configured to be immovable or movable. At least one flow device can also be configured to be rotatable relative to the distribution device and / or the main conveyor and / or the inlet device. By moving or rotating at least one flow device, for example, the formation or intensity of the at least partially spiral or at least partially rotating conveyed material flow can be easily adjusted. For example, when the flow device is fixed or does not rotate relative to the wall, the flow component along the tangential or circumferential direction of the conveyed material flow is made more obvious. On the other hand, when the flow device rotates freely relative to the wall, the flow component along the tangential or circumferential direction is not so obvious. It is also possible that at least one flow device is connected to a drive that drives at least one flow device so that it is in a rotating state. This can produce a more obvious rotating or spiral conveyed material flow.

[0090] Furthermore, at least one flow device may be configured to rotate relative to an axis parallel to the flow of the conveyed material or parallel to the direction of the conveyed material or parallel to the axial direction of the flow device and / or parallel to the axial direction of the distributor head.

[0091] At least one flow device can also be configured rigid or immovable. Thus, at least one flow device can be configured to be relatively fixed relative to the distribution device and / or the main conveyor and / or the inlet device. This simplifies assembly and maintenance.

[0092] Furthermore, the distributor head may comprise three flow devices which are arranged sequentially along the axial direction of the conveyed material flow or flow device and / or along the axial direction of the distributor head and together form and / or continue the main conveyor and / or distribution device and / or inlet device.

[0093] The first and second flow devices may be arranged in the same mutual orientation. The third flow device may be aligned upside down compared to the first and second flow devices and arranged on the second and / or first flow device. This may simplify the attachment of multiple flow devices to other devices of the dispenser head.

[0094] Further, the distributor head may comprise at least one output channel or a plurality of output channels extending from the distribution device and through which the conveyed material flow is introduced into a distribution line leading to the dosing device. The at least one output channel or a plurality of output channels may extend radially from the distributor head.

[0095] The distributor head may comprise a plurality of return means by means of which the flow of conveyed material is returned from the output channel to the main conveyor.

[0096] Furthermore, the distributor head may include a circulating return collection area, which is connected to the main conveyor and to which all return devices lead. The return collection area may be arranged between the main conveyor and the inlet device or downstream of the inlet device. If a flow device is arranged upstream of the inlet device, an at least partially rotating or at least partially spiral flow of the conveyed material can be generated before the conveyed material flow enters the main conveyor. This makes it possible to avoid the accumulation of particulate material in the return collection area and thus in the distributor head when the distributor head is tilted in the tilted available area. As a result, the particulate material can be easily collected from the return collection area and sent back in the direction of the distribution device.

[0097] Further, the distributor head may also include a plurality of return devices, each of which includes a material return flow area and an air discharge flow area. The material return flow area can return the conveyed material flow or the particulate material contained therein from the output channel to the main conveyor through the return flow. The air separated from the return flow can enter the output channel and / or the spreading line through the air discharge flow area.

[0098] Furthermore, the dispenser head can comprise at least one deflection device which can be brought into a through-passage position and / or a return position.

[0099] It is also possible to realize a position of the at least one deflection device between the through-pass position and the return position.

[0100] At least one deflection device can be arranged in the return device so that in the through-passage position the conveyed material flow can be directed into the outlet channel of the distributor head and in the return position into a material return flow region of the return device.

[0101] At least one deflection device may comprise a movable deflection body.

[0102] The movable deflector body of the deflector device may be arranged to block passage from the outlet channel into the material return flow region in the through-passage position.

[0103] Alternatively or additionally, the movable deflecting body of the deflecting device can be arranged to release a passage from the outlet channel into the material return flow region in the return position.

[0104] Any position of the deflection body between the through-pass position and the return position is also conceivable.

[0105] Furthermore, the deflection body of the deflection device can be arranged to reduce or close the free flow cross section of the passage from the outlet channel into the air discharge flow region at the passage position. Thus, the flow rate from the outlet channel to the spreading line can be variably adjusted.

[0106] A third aspect of the present invention comprises an agricultural spreader, such as a seed drill.

[0107] It is expressly noted that the features of the distributor head mentioned in the first aspect can be used individually or in combination with each other in an agricultural spreader.

[0108] Thus, an agricultural spreader, such as a seed drill, comprises a distributor head according to the second aspect.

[0109] Here, the spreader may include a plurality of spreading wires for delivering the granular material to the agricultural area.The spreading wires may connect the output channels of the distributor head to the delivery device of the spreader.

[0110] Furthermore, the spreader may also include a plurality of delivery devices, each of which is connected to a spreading line of the spreader and is configured to deliver the granular material onto the agricultural area.

[0111] Furthermore, the placing device and / or the distributor head and / or the spreading line can be arranged on a frame of the seed spreader.

[0112] The present invention will be described in more detail below with reference to the embodiments and in conjunction with the accompanying drawings. These drawings are schematically shown below.

[0113] Figure 1 Perspective view of a machine combination with a seed spreader.

[0114] Figure 2 Figure 1 A perspective view of the distributor head of a medium spreader.

[0115] Figure 3 Figure 2 Cross-sectional view of the distributor head.

[0116] Figure 4 Figure 3 A perspective view of a cross-sectional view in FIG.

[0117] Figure 5 Figure 2 A partial stereoscopic view of the distributor head in FIG.

[0118] Figures 6A-6D Used in Figure 2 Four different views of a first embodiment of a flow device for at least partially directing a flow of conveyed material in a distributor head are shown.

[0119] Figures 7A-7D Used in Figure 2 Four different views of a second embodiment of a flow device for at least partially directing a flow of conveyed material in a distributor head are shown.

[0120] Figures 8A-8B Used in Figure 2 Two different views of a third embodiment of a flow device for at least partially directing a flow of conveyed material in a distributor head are shown.

[0121] In the following description, the same reference numerals are used for the same objects.

[0122] Figure 1 A perspective view of a machine assembly 200 with a seed spreader 100 is shown. More specifically, Figure 1 An agricultural spreader 100 , such as a seed drill, is shown.

[0123] Here, the agricultural spreader 100 includes Figures 2 to 5 , and a plurality of spreading wires 102 for delivering granular material to an agricultural area. For example, each spreading wire 102 connects the output channel 54 of the distributor head 50 to a delivery device 103 of the spreader 100.

[0124] Furthermore, the spreader 100 has a plurality of delivery devices 103. The delivery devices 103 are each connected to a spreading line 102 (not shown) and are configured to deliver a conveyed material flow F including granular material and air onto an agricultural area.

[0125] In more detail, Figure 1 A machine combination 200 is shown having an agricultural traction vehicle 201 configured as a tractor and an agricultural spreader 100 configured as a seed drill.

[0126] In the illustrated embodiment, agricultural spreader 100 is configured as a towed machine. In other embodiments, agricultural spreader 100 may also be configured as a supported machine, such that agricultural tractor 201 acts as a carrier vehicle.

[0127] further, Figure 1 The agricultural spreader 100 is shown to include a storage container 104 for storing particulate material, such as seeds and / or fertilizer. The particulate material stored in the storage container 104 is delivered to the distributor head 50 via a supply line 101.

[0128] The distributor head 50 distributes the particulate material to a plurality of spreading lines 102 ( Figure 1 Not shown), wherein the spreading line 102, as already described, is connected to a placing device 103 of the agricultural spreader 100.

[0129] The granular material is placed on the agricultural area by a placing device 103. For example, the placing device 103 can be a sowing coulter. Further, the placing device 103 is arranged on a frame 106 of the agricultural spreader 100. Soil cultivation tools 105, 107 are also attached to the frame 106.

[0130] Described in more detail, the agricultural spreader 100 includes a plurality of leading soil cultivation tools 105 arranged in a horizontal row in front of the delivery device 103 along the travel direction. Further, the agricultural spreader 100 includes a plurality of trailing soil cultivation tools 107 arranged in a horizontal row behind the delivery device 103 along the travel direction.

[0131] Figures 2 to 5 The same dispenser head 50 is shown in both cases in different representations.

[0132] For example, Figure 2 Shows Figure 1 A perspective view of a distributor head 50 of a spreader 100 is shown, wherein the return device 58 is hidden so that the flow device 1 , 1A, 1B behind it can be seen.

[0133] Figure 3 Shows Figure 2 A cross-sectional view of a dispenser head 50 in FIG. Figure 4 Shows Figure 3 A perspective view of a cross-sectional view in FIG. Figure 5 Shows Figure 2 A partial perspective view of the dispenser head 50.

[0134] For simplicity and brevity, the following is described together Figures 2 to 5 .

[0135] Figures 2 to 5 A distributor head 50 for an agricultural spreader 100 for distributing granular material to a plurality of spreading lines 102 is shown.

[0136] The distributor head 50 has an inlet device 51 for connecting to a feed line 101 of an agricultural spreader 100 (see Figure 2 and Figure 3 ). Therein, a conveyed material flow comprising air and particulate material is introduced into the distributor head 50 or the main conveyor 52 of the distributor head 50 via the feed line 101 and thus also via the inlet device 51. Here, the inlet device 51 comprises a constriction 60 configured as a nozzle. Further, the feed line 101 is pneumatically pressurized to form the conveyed material flow F.

[0137] Furthermore, the distributor head 50 has a main conveyor 52 for conveying the conveyed material flow F from the inlet device 51 further to a distribution device 53 of the distributor head 50 .

[0138] Further, the distributor head 50 includes a distribution device 53, which is used to distribute and / or push the conveyed material flow F into an output channel 54 of the distributor head 50. Thus, the output channel 54 extending from the distribution device 53 can introduce the conveyed material flow F into the spreading line 102 leading to the delivery device 103.

[0139] Figures 2 to 5 It is further shown that the distribution device 53 , the main conveyor 52 and the inlet device 51 are connected in series along the axial direction A. In this case, the conveyed material flow F also flows along the axial direction A through the distribution device 53 , the main conveyor 52 and the inlet device 51 .

[0140] Figures 2 to 5 It is also shown that the distributor head 50 comprises a plurality of flow devices 1, 1A, 1B for at least partially directing the conveyed material flow F. The flow devices 1, 1A, 1B can be used to generate an at least partially spiral or at least partially rotating conveyed material flow F. For the precise possible configurations of the flow devices 1, 1A, 1B, reference can be made to FIG. 6A to FIG. 8B Various embodiments and related explanations in.

[0141] exist Figures 2 to 5 In the embodiment, the flow devices 1, 1A, 1B are arranged on the main conveyor 52 and further form the main conveyor 52 or continue the main conveyor 52. Here, the main conveyor 52 is configured similar to a diffuser, and strictly speaking, the flow devices 1, 1A, 1B are attached to the wall 56 of the main conveyor 52 or continue the wall 56 of the main conveyor 52 (see Figure 3 and Figure 4 ).

[0142] Further, the flow devices 1 , 1A, 1B are arranged downstream of the main conveyor 52 .

[0143] In other words, the flow device 1 , 1A, 1B is arranged upstream of the distribution device 53 . Therein, the flow device 1 forms or continues at least part of the distribution device 53 or part of a wall 57 of the distribution device 53 .

[0144] according to Figures 2 to 5 , the flow devices 1, 1A, 1B are configured rigid or immovable. However, it is also possible that they are configured to be movable or rotatable relative to the distribution device 53. In this case, the flow devices 1, 1A, 1B can be configured to be rotatable relative to an axis D, wherein the axis D is parallel to the conveyed material flow F or parallel to the axial direction A of the flow devices 1, 1A, 1B or the distributor head 50. By moving or rotating the flow devices 1, 1A, 1B, for example, the formation or intensity of the at least partially spiral or at least partially rotating conveyed material flow F can be adjusted in a simple manner.

[0145] according to Figures 2 to 5 The distributor head 50 includes three flow devices 1 , 1A, 1B, which are arranged in sequence along the conveyed material flow F or along the axial direction A of the distributor head 50 and together form or continue the main conveyor 52 .

[0146] In this case, the first and second flow devices 1, 1A are arranged in the same orientation relative to each other, and the third flow device 1B is oriented upside down compared to the first and second flow devices 1, 1A and is arranged on the second flow device 1A (see Figure 2 and 3 The connection part 23 of the combined flow device 1, 1A, 1B).

[0147] in addition, Figure 2 and Figure 4 The distributor head 50 is shown to comprise a plurality of output channels 54 which extend from the distribution device 53 and through which the conveyed material flow F is introduced into a spreading line 102 leading to a dosing device 103. The output channels 54 extend from the distributor head 50 in a radial direction R.

[0148] In addition, according to Figures 2 to 5 The distributor head 50 has a plurality of return devices 58 , through which the conveyed material flow F can be returned from the outlet channel 54 to the main conveyor 52 .

[0149] further, Figures 2 to 4 The distributor head 50 is shown to comprise a circumferential return collection area 59 which is connected to the main conveyor 52 and into which all the return means 58 open.

[0150] The return collection area 59 is arranged between the main conveyor 52 and the inlet device 51 or downstream of the inlet device 51. If the flow device 1 is arranged upstream of the inlet device 51, an at least partially rotating or at least partially spiral conveyed material flow can be generated before the conveyed material flow F enters the main conveyor 52. This makes it possible to avoid the accumulation of particulate material in the return collection area 59 and thus in the distributor head 50 for the agricultural spreader 100 and for distributing particulate material when the distributor head 50 is tilted in the tilted available area. As a result, the particulate material can be easily collected from the return collection area 59 and sent back in the direction of the distribution device 53.

[0151] refer to Figure 3 and Figure 4 Each return device 58 includes a material return flow area 61 and an air discharge flow area 62. Through the material return flow area 61, the conveyed material flow F or the particulate material contained therein can be returned from the output channel 54 to the main conveyor 52 via the return flow. The air separated from the return flow can enter the output channel 54 and / or the spreading line 102 through the air discharge flow area 62.

[0152] further, Figure 3 and Figure 4The dispenser head 50 is shown to comprise a plurality of deflection means 63, each of which can be brought into a through passage position and / or a return position. Of course, one or more deflection means 63, positions between the through passage position and the return position can also be realized.

[0153] Each deflection device 63 is arranged in the return device 58 so that in the through-pass position the conveyed material flow F can be guided into the output channel 54 of the distributor head 50 and in the return position the conveyed material flow F can be guided into the material return flow area 61 of the return device 58 .

[0154] Further, each deflection device 63 has a movable deflection body 64. For example, the movable deflection body 64 of the deflection device 63 is arranged to block the passage from the output channel 54 into the material return flow area 61 when passing through the passage position. Figure 4 As shown, the deflector 64 of the deflector 63 can also be arranged to reduce or close the free flow cross section of the passage from the output channel 54 into the air discharge flow area 62 when passing through the passage position. Thus, the flow rate from the output channel 54 to the spreading line 102 can be variably adjusted.

[0155] Furthermore, for example, each movable deflection body 64 of the deflection device 63 is arranged to release the passage from the outlet channel 54 into the material return flow region 61 in the return position.

[0156] Any position of the deflector body 64 between the through-pass position and the return position is also contemplated.

[0157] Once the movable deflector 64 allows access to the material return flow area 61, the entire conveyed material flow F or only a portion thereof flows into the return collection area 59 through the material return flow area 61. Thereby, the entire conveyed material flow F or only a portion thereof is directed back upstream of the main conveyor 52 to the conveyed material flow F flowing into the inlet device 51 of the distributor head 50 from the connected supply line 101.

[0158] Accordingly, the distributor head 50 is equipped with a deflection device 63 to temporarily interrupt the granular material or the conveyed material flow F into the spreading line 102 leading to the delivery device 103 via the deflection device 63. In this way, the spreading of the granular material to the agricultural area is temporarily interrupted in rows or areas or over the entire width of the agricultural spreader 100.

[0159] FIG. 6A to FIG. 6D Shown is the Figures 2 to 5 1 and 2. Four different views of a first embodiment of a flow device 1 for at least partially guiding a conveyed material flow F in a distributor head 50. The following description can also be applied in an analogous manner to the following embodiments: Figures 2 to 5 Flow devices 1A and 1B are shown with respect to a distributor head 50 .

[0160] A more detailed description, Fig. 6A shows a stereogram, Figure 6B shows a top view, Figure 6C shows a side view, Fig.6D Shows Figure 6B For simplicity and brevity, FIG. 6A to FIG. 6D Describe together.

[0161] Thus, as already stated, FIG. 6A to FIG. 6D A flow device 1 is shown which at least partially guides a flow F of conveyed material in a distributor head 50 of an agricultural spreader 100 .

[0162] The flow device 1 is configured to generate an at least partially rotating or at least partially spiral conveyed material flow F. Figures 2 to 5 As described in relation to the distributor head 50, the conveyed material flow F comprises air and particulate material.

[0163] The flow device 1 is also configured to generate a conveyed material flow F that is at least partially rotating or at least partially spiral from the conveyed material flow flowing along the axial direction A. In other words, the flow device 1 is configured to at least partially cause the conveyed material flow F flowing along the axial direction A to be in a rotating state. As a result, the conveyed material flow F continues to flow along the axial direction A while rotating. The flow device 1 thus converts the conveyed material flow F flowing along the axial direction A into a conveyed material flow F that is at least partially rotating or at least partially spiral. In other words, the flow device 1 is configured to at least partially generate a swirl from the conveyed material flow flowing along the axial direction A.

[0164] like Figure 6B and Figure 6C As shown, the flow device 1 extends along the axial direction A, the radial direction R, and the circumferential direction U or the tangential direction T to form a space body. The conveyed material flow F flows along the axial direction A through the flow device 1 .

[0165] Further, the flow device 1 divides the conveyed material flow F into an inner part IA and an outer part AA. The outer part AA completely surrounds the inner part IA so that the outer part AA contacts or interacts with the flow device 1 and the inner part IA contacts or interacts with the outer part AA.

[0166] Therefore, according to Figure 6B and 6C, the outer part AA forms a hollow cylinder, the inner part IA forms a cylinder, and the inner cylindrical part IA completely fills the outer hollow cylindrical part AA. Therefore, the flow device 1 contacts the outer part AA and the inner part IA contacts the outer part AA. The interaction between the flow device 1 and the conveyed material flow F or the interaction between the flow device 1 and the outer part AA of the conveyed material flow F can produce an at least partially rotating conveyed material flow F. In this way, the accumulation of particulate material in the distributor head 50 can be avoided when the distributor head 50 is tilted in the tilted available area.

[0167] further, FIG. 6A to FIG. 6D It is shown that the flow device 1 comprises a plurality of flow guide elements 2 , 3 , 4 , 5 for generating an at least partially rotating or at least partially spiral conveyed material flow F.

[0168] The function of the flow guides 2, 3, 4, 5 is to redirect the conveyed material flow F at least partially and to redirect and rotate at least the outer part AA of the conveyed material flow F (see Figure 6B , 6C ).

[0169] The flow guides 2, 3, 4, 5 are configured to act on the conveyed material flow F from the outside to add a tangential T and radial R movement component STK to at least an outer portion AA of the conveyed material flow F, wherein the outer portion AA completely surrounds the inner portion IA of the conveyed material flow F. In this way, an at least partially spiral or rotating conveyed material flow F can be generated.

[0170] In the present embodiment, the flow guides 2, 3, 4, 5 are configured to be rigid or immovable. However, they may also be adjustable to take into account different flow rates and different characteristics of the conveyed material flow F and to produce a conveyed material flow F that is at least partially spiral or rotating.

[0171] Further, the flow guides 2, 3, 4, 5 comprise plastic. However, it is also conceivable that the flow guides 2, 3, 4, 5 comprise elastic material, such as elastomer and / or steel, such as stainless steel, in order to minimize wear, for example when using fertilizer as granular material.

[0172] Further, according to FIG. 6A to FIG. 6D The flow device 1 is configured such that the conveyed material flow F is introduced into the flow device 1 along the axial direction A, and such that the conveyed material flow F can flow through the flow device 1 and is also impacted by the conveyed material flow F along the axial direction A.

[0173] Also like FIG. 6A to FIG. 6D As shown, the flow device 1 comprises a wall 6 which serves as a continuation or further development of the main conveyor 52 of the distributor head 50 (see Figures 2 to 5 ).

[0174] The wall 6 is configured to be tubular or hollow cylindrical. Further, the wall 6 is configured to be wavy in cross section along the direction in which the conveyed material flow F flows through the flow device 1 (see Figure 6C , 6D ). More precisely, in a cross section in the direction of the conveyed material flow F through the flow device 1 or along the axial direction A of the flow device 1, the wall 6 comprises a valley region 13 and two peak regions 14, 15. The valley region and the peak region may merge smoothly into each other, for example, to simulate a so-called bellows.

[0175] according to FIG. 6A to FIG. 6D , the guide members 2, 3, 4, 5 are configured similar to guide vanes or similar to guide plates. Therefore, an at least partially rotating or at least partially spiral conveyed material flow F can be formed or generated. Guide vanes are known to be related to jet engines, and guide plates are known to be used to change the direction of the flow. Accordingly, the guide members 2, 3, 4, 5 are configured as fluid members that are bypassed by the flow, thereby forming an at least partially rotating or spiral conveyed material flow F.

[0176] according to FIG. 6A to FIG. 6D , the guide elements 2, 3, 4, 5 are fixedly arranged on the wall 6 of the flow device 1. However, it is also conceivable that the guide elements 2, 3, 4, 5 are adjustably or variably arranged on the wall 6 of the flow device 1. For example, the guide elements 2, 3, 4, 5 are configured to rotate relative to the wall 6 of the flow device 1. In this way, different configurations of the rotating or spiral conveyed material flow F are achieved.

[0177] from Fig. 6A and Figure 6B It is also clear that the flow guides 2, 3, 4, 5 are configured to be triangular shaped similar to a spherical triangle. It is also clear that the flow guides 2, 3, 4, 5 are configured differently and include a first and a second flow guide.

[0178] The first flow guide elements 2, 4 and the second flow guide elements 3, 5 comprise different volumes. Furthermore, the first flow guide elements 2, 4 and the second flow guide elements 3, 5 have different profiled surfaces and different angles of attack relative to the conveyed material flow F.

[0179] Further, the first flow guides 2, 4 and the second flow guides 3, 5 are arranged in sequence along the direction of the conveyed material flow F. The two flow guides 2, 3, 4, 5 arranged in sequence along the direction of the conveyed material flow F can be aligned with each other, so that when viewed from the direction of the conveyed material flow F, the first flow guides 2, 4 and the second flow guides 3, 5 partially overlap (see Fig. 6A and Figure 6B ). In addition, the first flow guide members 2, 4 and the second flow guide members 3, 5 are mirror-symmetrical to each other.

[0180] Furthermore, the two guide members 2, 3, 4, 5 arranged in sequence along the direction of the conveyed material flow F can be aligned with each other so that the side 9 or the first side 9 of the first guide member 2, 4 is the shortest side of the guide member 2, 4. The first side 9 of the first guide member 2, 4 forms an angle between 81 and 99 degrees relative to the wall 6 of the flow device 1.

[0181] The second edge 10 of the second guide member 3, 5 or the impact edge 10 of the second guide member 3, 5 can form an angle between 15 and 40 degrees with respect to the wall 6 of the flow device 1, and the guide member 3, 5 continuously rises from the wall 6 or extends away from the wall 6 in the direction of the conveyed material flow F (see Fig. 6A ).

[0182] according to Fig.6D The flow device 1 comprises flow guides 2, 3, 4, 5 of first and second rings 7, 8. The first and second rings 7, 8 are configured as cylindrical and each comprises a plurality of flow guides 2, 3, 4, 5. These flow guides are evenly distributed in the circumferential direction U of the rings 7, 8 and are aligned along the same spatial orientation.

[0183] The first ring 7 includes first flow guide members 2 and 4 and the second ring 8 includes second flow guide members 3 and 5 , and the first and second rings 7 and 8 are arranged in sequence along the direction of the conveyed material flow F.

[0184] Fig.6D It is also shown that the first and second rings 7, 8 are arranged to be offset / staggered from each other. Specifically, the first and second rings 7, 8 are arranged to be offset from each other so that the end 11 of the first flow guide 2, 4 of the first ring 7 arranged along the direction of the conveyed material flow F is arranged at the two starting ends of the two second flow guides 3, 5 of the second ring 8 ( ) between 12.

[0185] Figures 2 to 5 as well as FIG. 6A to FIG. 6D It is also shown that the flow device 1 is configured in a modular manner, so that a plurality of flow devices 1, 1A, 1B, such as Figures 2 to 5 As shown, they can be connected to each other.

[0186] For this purpose, the flow device 1 comprises various connections 16, 17, 18, 19 (see FIG. 6A to FIG. 6D ), at the connection part, the two flow devices 1, 1A, 1B can be connected with a force fit or connected to each other. The connection parts 16, 17, 18, 19 are evenly distributed along the circumferential direction U of the flow device 1.

[0187] also, FIG. 6A to FIG. 6DThe flow device 1 is shown to further comprise a plurality of connections 20, 21, 22, 23 at which the flow device 1 can be connected in a force-fitting manner to a wall 56 of a main conveyor 52 of a distributor head 50 (see further). Figures 2 to 5 ).

[0188] refer to Figures 2 to 5 , the function of the distributor head 50 with the flow devices 1 , 1A, 1B is explained as follows.

[0189] After the conveyed material flow F flows into the inlet device 51 from the supply line 101 , the conveyed material flow F reaches the main conveyor 52 .

[0190] Since the main conveyor 52 is configured in the form of a diffuser, the velocity of the conveyed material flow F is reduced, but the pressure is increased.

[0191] By reducing the speed of the conveyed material flow F, the series-connected flow devices 1 , 1A, 1B achieve a higher efficiency.

[0192] If the conveyed material flow F now enters the flow device 1, 1A, 1B from the main conveyor 52, the conveyed material flow F is symbolically divided into two parts: the inner part IA and the outer part AA (see Figure 6B , 6D ). As described above, the outer part AA surrounds the inner part IA so that the outer part AA contacts the flow device 1 and the inner part IA contacts the outer part AA. In this case, the outer part AA forms a hollow cylinder, while the inner part IA forms a cylinder. In other words, the outer part AA is affected by the flow guides 2, 3, 4, 5 so that the flow components STK in the tangential direction T and the radial direction R are added to the conveyed material flow F in the outer part AA. The conveyed material flow F in the inner part AA is affected by the conveyed material flow F from the outer part AA when flowing through the flow devices 1, 1A, 1B.

[0193] Thus, an at least partially rotating or at least partially spiral conveyed material flow F can be generated by the flow device 1 , 1A, 1B.

[0194] This rotating or spiral conveyed material flow F enters from the flow device 1 , 1A, 1B into the distribution device 53 . The distribution device 53 distributes the conveyed material flow F to the outlet channel 54 .

[0195] If, for example, the agricultural spreader 100 is currently moving on a plane that is inclined transversely relative to the direction of travel of the agricultural tractor 201 (see Figure 1 ), the distributor head 50 also tilts, for example, Figure 3 , tilted counterclockwise.

[0196] Due to this situation, more particulate material of the conveyed material flow F reaches the left side of the distribution device 53 due to the effect of gravity.

[0197] However, the rotating or spiral conveyed material flow F flowing from the flow device 1 , 1A, 1B into the distribution device 53 prevents accumulation of granular material of the conveyed material flow F. As a result, a constant uniform distribution of the conveyed material flow F or granular material in the distribution device 53 can be ensured on an inclined plane or an inclined agriculturally usable area.

[0198] FIG. 7A to FIG. 7D Shown is the Figure 2 4 and 5. Four different views of a second embodiment of a flow device 1 for at least partially guiding a conveyed material flow F in a distributor head 50 of FIG. FIG. 6A to FIG. 6D .

[0199] More specifically, Fig. 7A shows a stereogram, Figure 7B shows a top view, Figure 7C shows a side view, Fig.7D Shown along Figure 7B Sectional view of midline AA. For simplicity and brevity, FIG. 7A to FIG. 7D Describe together.

[0200] thus, FIG. 7A to FIG. 7D A flow device 1 is shown which at least partially guides a flow F of conveyed material in a distributor head 50 of an agricultural spreader 100 .

[0201] Here, the flow device 1 is configured to generate an at least partially rotating or at least partially spiraling conveyed material flow F. In other words, the flow device 1 is configured to cause the conveyed material flow F to at least partially rotate.

[0202] In order to avoid unnecessary repetitions, reference may be made to the explanations regarding the first embodiment which also apply here. The differences between the first and second embodiments are discussed as follows.

[0203] When the general FIG. 6A to FIG. 6D and FIG. 7A to FIG. 7D In comparison, it can be found that according to FIG. 7A to FIG. 7D In the second embodiment, the guide members 2 , 3 , 4 , 5 are not configured like guide vanes or like guide plates but are configured as pins.

[0204] Therefore, in FIG. 7A to FIG. 7D In the embodiment, the guide members 2, 3, 4, 5 are configured as cylindrical pins for guiding the conveyed material flow F to thereby form an at least partially rotating or at least partially spiral conveyed material flow F. Alternatively, it is also possible that the guide members 2, 3, 4, 5 configured as pins are truncated cones.

[0205] FIG. 7A to FIG. 7DIt is shown that the flow guides 2, 3, 4, 5 protrude from the wall 6 of the flow device 1 and form an angle of 90 degrees with respect to the surface of the wall 6. However, it is also possible to form an angle between 80 and 100 degrees.

[0206] Further, from FIG. 7A to FIG. 7D It can be seen that the first and second rings 7, 8 are arranged to be offset / staggered from each other, so that along the direction of the conveyed material flow F, the first flow guides 2, 4 of the first ring 7 are arranged between the two second flow guides 3, 5 of the second ring 8.

[0207] Based on FIG. 7A to FIG. 7D The function of the distributor head 50 of the flow device 1 is similar to FIG. 6A to FIG. 6D 1.

[0208] That is, by following FIG. 7A to FIG. 7D The rotating or spiral material flow F of the conveyed material enters the distribution device 53. The distribution device 53 distributes the conveyed material flow F to the output channel 54.

[0209] If, for example, the agricultural spreader 100 is currently moving on a plane that is inclined transversely relative to the direction of travel of the agricultural tractor 201 (see Figure 1 ), the distributor head 50 also tilts, for example, Figure 3 Therefore, more granular materials of the conveyed material flow F reach the left side of the distribution device 53 due to the action of gravity.

[0210] The rotating or spiral conveyed material flow F flowing into the distribution device 53 prevents accumulation of granular material of the conveyed material flow F. As a result, a constant uniform distribution of the conveyed material flow F or granular material in the distribution device 53 can be achieved on an inclined plane or an inclined agriculturally usable area.

[0211] Fig. 8A and Figure 8B Shown is the Figure 2 Two views of a third embodiment of a device 1 for at least partially directing a flow of a conveyed material flow F within a distributor head 50. Fig. 8A The view is similar to Fig.6D and Fig.7D ,but Figure 8B Shown along Fig. 8A For simplicity and brevity, Fig. 8A and Figure 8B Describe together.

[0212] The figures thus show a flow device 1 which at least partially guides a flow F of conveyed material within a distributor head 50 of an agricultural spreader 100 .

[0213] The flow device 1 is configured to generate an at least partially rotating or at least partially helical conveyed material flow F. In other words, the flow device 1 is configured to cause the conveyed material flow F to at least partially rotate.

[0214] In order to avoid unnecessary repetitions, reference is made by way of analogy to the explanations regarding the first embodiment which also apply here. The differences between the first and third embodiments are discussed below.

[0215] When the general FIG. 6A to FIG. 6D and FIG. 8A to FIG. 8B In comparison, it can be found that according to FIG. 8A to FIG. 8B In the third embodiment, the guide members 2, 3, 4, 5 are not configured as guide vanes or guide plates but as fluid channels. Accordingly, the guide members 2, 3, 4, 5 are configured as flow sections to be flowed through to form at least partially rotating or spiral conveyed material flow F.

[0216] FIG. 8A to FIG. 8B It is shown that the flow guides 2 , 3 , 4 , 5 are configured as flow channels in the wall 6 of the flow device 1 to form an at least partially rotating or at least partially spiral flow F of conveyed material.

[0217] Further, according to Fig. 8A The guide members 2, 3, 4, 5 are arranged inside the wall 6 of the flow device 1 to increase the tangential T and radial R movement component STK or flow component STK in the conveyed material flow F through the air flow passing through the guide members 2, 3, 4, 5.

[0218] The flow quantity STK can be increased in two different ways. For example, the air flow can be removed from the conveyed material flow F by suction from the flow guides 2, 3, 4, 5 configured as fluid channels, or the air flow can be added to the conveyed material flow F by blowing, for example, using the flow guides 2, 3, 4, 5 configured as fluid channels.

[0219] like Figure 8B As shown, each guide element 2 , 3 , 4 , 5 extends along a straight axis, wherein each guide element 2 , 3 , 4 , 5 is arranged in the wall 6 at an angle to the conveyed material flow F.

[0220] More specifically, each guide 2, 3, 4, 5 is arranged in a wall 6 extending in a tangential direction T and in a radial direction R. In this case, the guide 2, 3, 4, 5 forms an angle of less than 90 degrees or between 20 and 60 degrees with the surface of the wall 6. This angle allows for an optimal formation of an at least partially rotating or at least partially spiral conveyed material flow F.

[0221] Further, from Fig. 8A and Figure 8BIt can be seen that the first and second rings 7, 8 are arranged to be offset / staggered from each other, so that along the direction of the conveyed material flow F, the first flow guides 2, 4 of the first ring 7 are arranged between the two second flow guides 3, 5 of the second ring 8.

[0222] Based on Fig. 8A and Figure 8B The function of the distributor head 50 of the flow device 1 is similar to Fig. 6A and Fig.6D 1.

[0223] Thus, via the flow device 1 , a rotating or spiral conveyed material flow F enters the distribution device 53 , which distributes the conveyed material flow F to the outlet channels 54 .

[0224] If, for example, the agricultural spreader 100 is currently moving on a plane that is inclined transversely relative to the direction of travel of the agricultural tractor 201 (see Figure 1 ), the distributor head 50 also tilts, for example, Figure 3 , tilted counterclockwise. As a result, more granular materials of the conveyed material flow F reach the left side of the distribution device 53 due to gravity.

[0225] The rotating or spiral conveyed material flow F flowing into the distribution device 53 prevents accumulation of granular material of the conveyed material flow F. As a result, a constant uniform distribution of the conveyed material flow F or granular material in the distribution device 53 can be achieved on an inclined plane or an inclined agriculturally usable area.

[0226] Reference numerals

[0227] 1 flow device 2 flow guide

[0228] 1A flow device 3 guide piece

[0229] 1B flow device 4 flow guide

[0230] 5 guide piece 58 return device

[0231] 6 The wall 59 of the guide returns to the collection area

[0232] 7 The first ring 60 necking

[0233] 8 Second ring 61 material return flow area

[0234] 9 First side 62 air discharge flow area

[0235] 10 second side 63 deflection device

[0236] 11 end portion of the guide member 64 deflection body

[0237] 12 Starting end of guide piece 100 Agricultural spreader

[0238] 13 Valley Area 101 Feeding Line

[0239] 14 Peak District 102 Spreading Line

[0240] 15 Peak Area 103 Release Device

[0241] 16 connection part 104 storage container

[0242] 17 connection part 105 soil tillage tool

[0243] 18 connection part 106 rack

[0244] 19 connection part 107 soil tillage tool

[0245] 20 connection parts 200 machine combination

[0246] 21 connection 201 agricultural traction vehicle

[0247] 22 Connection F conveyed material flow

[0248] 23 Connection AA is the outer part of the conveyed material flow

[0249] 50 Distributor head IA The inner part of the conveyed material flow

[0250] 51 Inlet device STK tangential flow component

[0251] 52 Main conveyor A axial

[0252] 53 Distribution device R radial

[0253] 54 output channel T tangential

[0254] 55 The wall U of the inlet device is circumferential

[0255] 56 The wall D of the main conveyor is parallel to the axis of the conveyed material flow.

[0256] 57 Wall of the distribution device

Claims

1. A flow device (1) for at least partially guiding a flow (F) of conveyed material in a distributor head (50) of an agricultural spreader (100), It is characterized in that The flow device (1) is configured to generate an at least partially rotating or at least partially spiral flow (F) of conveyed material.

2. The flow device according to claim 1, characterized in that The flow device (1) comprises at least one flow guide element (2, 3, 4, 5) for generating the at least partially rotating or at least partially spiral conveyed material flow (F), Wherein, the at least one guide member (2, 3, 4, 5) is configured to act on the conveyed material flow (F) from the outside to add a movement component (STK) or flow component (STK) along the tangential (T) and / or radial (R) and / or axial (A) direction to at least one outer part (AA) of the conveyed material flow (F), and the outer part (AA) completely surrounds the inner part (IA) of the conveyed material flow (F).

3. The flow device according to claim 1 or 2, characterized in that The flow device (1) comprises at least one flow guide element (2, 3, 4, 5) for generating the at least partially rotating or at least partially spiral conveyed material flow (F), Therein, the at least one flow guide (2, 3, 4, 5) is configured to be adjustable in order to take into account different flow rates and / or different characteristics of the conveyed material flow (F).

4. A flow device according to any one of the preceding claims, characterised in that The flow device (1) comprises at least one flow guide (2, 3, 4, 5) for generating the at least partially rotating or at least partially spiral flow (F) of the conveyed material. Therein, the at least one guide member (2, 3, 4, 5) is configured similar to a guide vane or similar to a guide plate.

5. A flow device according to any one of the preceding claims, characterised in that The flow device (1) comprises at least one flow guide (2, 3, 4, 5) for generating the at least partially rotating or at least partially spiral flow (F) of the conveyed material. Therein, the at least one flow guide (2, 3, 4, 5) is configured as a pin for guiding the conveyed material flow (F).

6. A flow device according to any one of the preceding claims, characterised in that The flow device (1) comprises at least one flow guide (2, 3, 4, 5) for generating the at least partially rotating or at least partially spiral flow (F) of the conveyed material. Therein, the at least one flow guide (2, 3, 4, 5) is configured as a fluid channel in a wall (6) of the flow device (1).

7. The flow device according to claim 6, characterized in that The at least one flow guide (2, 3, 4, 5) is arranged inside the wall (6) of the flow device (1) to increase the movement component (STK) or flow component (STK) in the tangential (T) and / or radial (R) and / or axial (A) direction to the conveyed material flow (F) through the air flow passing through the at least one flow guide (2, 3, 4, 5).

8. A flow device according to any one of the preceding claims, characterised in that The flow device (1) comprises a flow guide (2, 3, 4, 5) of a first and / or second ring (7, 8), The first ring (7) comprises at least one first flow guide (2, 4), the second ring (8) comprises at least one second flow guide (3, 5), and The first and second rings (7, 8) are arranged to be staggered with each other so that the end (11) of the first flow guide (2, 4) of the first ring (7) arranged along the direction of the conveyed material flow (F) is arranged between the two starting ends of the two second flow guides (3, 5) of the second ring (8).

9. A flow device according to any one of the preceding claims, characterised in that The flow device (1) is configured in a modular manner so that at least two of the flow devices (1, 1A, 1B) can be connected to or disconnected from each other, and, The flow device (1) comprises at least one connecting portion (16, 17, 18, 19), at which the two flow devices (1, 1A, 1B) are connected to each other in a material fit and / or friction fit and / or force fit manner.

10. A flow device according to any one of the preceding claims, characterised in that The flow device (1) comprises at least one connection portion (20, 21, 22, 23), at which the flow device (1) is connected to the wall (56) of the main conveyor (52) of the distributor head (50) of the agricultural spreader (100) in a material and / or friction and / or force-fitting manner, and / or to the wall (55) of the inlet device (51) of the distributor head (50) of the agricultural spreader (100) and / or to the wall (57) of the distribution device (53) of the distributor head (50) of the agricultural spreader (100).

11. A distributor head (50) for an agricultural spreader (100) for distributing granular material to a plurality of spreading lines (102), comprising: an inlet device (51) for connecting to a feed line (101) of the agricultural spreader (100), wherein a conveyed material flow (F) comprising air and the particulate material is introduced into the distributor head (50) through the inlet device (51), a main conveyor (52) for further conveying the conveyed material flow (F) from the inlet device (51) to the distribution device (53) of the distributor head (50), and the distribution device (53) for distributing and / or advancing the conveyed material flow (F) into the output channel (54) of the distributor head (50), It is characterized in that The distributor head (50) comprises at least one flow device (1, 1A, 1B) according to any of the preceding claims for at least partially directing the conveyed material flow (F).

12. The dispenser head according to claim 11, characterized in that The at least one flow device (1) is arranged on the main conveyor (52) and further forms and / or continues the main conveyor (52), and / or, The at least one flow device (1) is arranged at the inlet device (51) and is arranged downstream and / or upstream of the inlet device (51), and / or, The at least one flow device (1) is arranged at the distribution device (53) and upstream of the distribution device (53).

13. The dispenser head according to claim 11 or 12, characterized in that The at least one flow device (1) is configured to be immovable or movable, and / or, The at least one flow device (1) is configured to be rotatable relative to the distribution device (53) and / or the main conveyor (52) and / or the inlet device (51).

14. An agricultural spreader (100), in particular a seed drill, comprising: A dispenser head (50) according to any one of claims 11 to 13.

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