AGRICULTURAL DISTRIBUTION DEVICE

Abstract

An agricultural distribution device includes a plurality of spreading elements arranged on a distribution linkage and adapted to spread granular material on an agricultural land, a detection device adapted to detect plant rows on the agricultural land, an adjustment device configured to change an impact area of the granular material dispensed by one or more of the spreading elements on the agricultural land during a spreading process, and a control device which is adapted to control the adjustment device as a function of the plant rows on the agricultural land detected by the detection device during the spreading process.

Claims

1. An agricultural distribution device, comprising: a plurality of spreading elements disposed on a distribution linkage, and adapted to spread granular material onto an agricultural land; a detection device adapted to detect plant rows on the agricultural land; an adjustment device configured to change an impact area of the granular material dispensed by one or more of the spreading elements on the agricultural land during a spreading process; and a control device which is adapted to control the adjustment device as a function of the plant rows on the agricultural land, detected by the detection device, during the spreading process.

2. The agricultural distribution device according to claim 1, wherein the adjustment device comprises one or more positioning devices for changing a position of the one or more of the spreading elements on the distribution linkage.

3. The agricultural distribution device according to claim 2, wherein the one or more positioning devices each comprise a displacement mechanism for displacing the one or more of the spreading elements along the distribution linkage.

4. The agricultural distribution device according to claim 2, wherein the control device is adapted to control the one or more positioning devices such that the one of more of the spreading elements are each positioned substantially vertically one of the plant rows during the spreading process.

5. The agricultural distribution device according to claim 1, wherein the control device is adapted to control the adjustment device such that an average distance in a horizontal direction between the detected plant rows and the spreading elements respectively associated with the plant rows is minimal.

6. The agricultural distribution device according to claim 1, wherein the adjustment device comprises one or more pivoting devices for changing an inclination of the one or more of the spreading elements on the distribution linkage.

7. The agricultural distribution device according to claim 6, wherein the control device is adapted to control the one or more pivoting devices such that the one or more the spreading elements are each substantially aligned with plant rows during the spreading process.

8. The agricultural distribution device according to claim 1, wherein the adjustment device comprises one or more rotating devices for changing a direction of rotation of the one or more of the spreading elements on the distribution linkage.

9. The agricultural distribution device according to claim 1, further comprising a plurality of support structures connected to the distribution linkage, wherein the plurality of spreading elements are attached to the support structures, and a position or an inclination of the support structures is changed by the adjustment device.

10. The agricultural distribution device according to claim 1, wherein the adjustment device is configured to change a distribution pattern of the one or more of the spreading elements.

11. The agricultural distribution device according to claim 1, wherein the detection device comprises one or more sensors or one or more cameras for detecting the plant rows.

12. A method of spreading granular material on an agricultural land with an agricultural distribution device, comprising the steps of: spreading the granular material onto agricultural land by a plurality of spreading elements arranged on a distribution linkage; detecting plant rows on the agricultural land by a detection device; changing an impact area of the granular material dispensed by one or more of the spreading elements onto the agricultural land during a spreading process by an adjustment device; and controlling the adjustment device as a function of the plant rows, detected by the detection device on the agricultural land, during the spreading process.

13. The method according to claim 12, wherein changing the impact area of the granular material dispensed by the one or more of the spreading elements onto the agricultural land during the spreading process comprises at least one of the following steps: changing a position of the one or more spreading elements on the distribution linkage; changing an inclination of the one or more of the spreading elements on the distribution linkage; changing a rotational orientation of the one or more spreading elements on the distribution linkage; or changing a distribution pattern of the one or more of the spreading elements.

Description

[0023] In the following, preferred embodiments of the invention are explained and described in more detail with reference to the accompanying drawings. Therein:

[0024] FIG. 1 FIG. 1 shows a distribution linkage of an agricultural distribution device according to the invention in a schematic view;

[0025] FIG. 2 shows a distribution linkage of another agricultural distribution device according to the invention in a schematic view; and

[0026] FIG. 3 FIG. 1 shows a distribution linkage of a further agricultural distribution device according to the invention in a schematic view.

[0027] FIG. 1 shows a distribution linkage 12 of an agricultural distribution device 10, wherein the agricultural distribution device 10 is configured as a pneumatic spreader. The distribution linkage 12 comprises a plurality of linkage segments which can be pivoted relative to one another and which allow the distribution linkage 12 to be folded together. The illustrated section of the distribution linkage 12 shows a left-hand linkage half, wherein the distribution linkage 12 also comprises a right-hand linkage half.

[0028] A plurality of spreading elements 14a-14k are arranged on the distribution linkage 12, wherein the spreading elements 14a-14k are configured as distribution nozzles. The spreading elements 14a-14k serve to spread the granular material onto the agricultural land 24.

[0029] Furthermore, the agricultural distribution device 10 comprises a detection device 16 which serves to detect plant rows 26a-26k on the agricultural land 24. The detection device 16 comprises a plurality of cameras 18a-18j attached to the distribution linkage 12.

[0030] Moreover, the agricultural distribution device 10 comprises an adjustment device 20 by means of which the impact area AB of the granular material dispensed by the spreading elements 14a-14k on the agricultural land 24 can be varied during the spreading process.

[0031] The spreading elements 14a-14k, the cameras 18a-18j of the detection device 16, and the adjustment device 20 are connected to a control device which controls the adjustment device 20 as a function of the plant rows 26a-26k on the agricultural land 24 detected by the detection device 16 during the spreading process.

[0032] The adjustment device 20 comprises several positioning devices 22a-22d, by means of which the position of the spreading elements 14a-14k on the distribution linkage 12 can be changed. The positioning devices 20a-20d each comprise a displacement mechanism by means of which a plurality of spreading elements 14a-14k can be displaced along the distribution linkage 12 and thus transversely to the direction of travel of the agricultural distribution device 10. The displacement mechanism of the respective positioning devices 22a-22d permits individual positioning of the respective spreading elements 14a-14k. The spreading elements 14a-14k can be moved independently of one another in the shown adjustment directions 28a-28k. For moving the spreading elements 14a-14k, the positioning devices 22a-22d comprise corresponding actuators. The actuators can be electric, pneumatic or hydraulic actuators. The spreading elements 14a-14k are supplied with granular material via feed lines that are not shown, wherein the feed lines are configured to be variable in length in order to permit displacement of the spreading elements 14a-14k. For this purpose, the feed lines can be configured to be flexible, telescopic and/or otherwise variable in length, for example by providing a compensating feed line element.

[0033] By means of the control device, the positioning devices 22a-22d can be controlled such that the spreading elements 14a-14k are each positioned substantially vertically above a plant row 26a-26k during the spreading process. This allows precise row-related spreading of the granular material onto the agricultural land 24.

[0034] Alternatively or additionally to the illustrated control of the positioning devices 22a-22d, this may also be controlled such that the spreading elements 14a-14k are each positioned above and substantially centrally between two plant rows 26a-26k during the spreading process.

[0035] Furthermore, by means of the adjustment device, the distribution pattern of the spreading elements 14a-14k can also be adjusted. For this purpose, the adjustment device 20 can comprise adjustable or exchangeable nozzle attachments which can be adjusted as a function of the position or the course of the detected plant rows 26a-26k on the respective spreading elements 14a-14k. Alternatively or additionally, shape-changing baffle plates can be used as spreading elements 14a-14k. Furthermore, it is conceivable that spreading elements 14a-14k configured as centrifugal plates are used, the distribution pattern of which can be influenced, for example, via the rotational speed and/or the feed point of the granular material onto the centrifugal plate.

[0036] FIG. 2 also shows a distribution linkage 12 of an agricultural distribution device 10 configured as a pneumatic spreader. Unlike the adjustment device 20 of the distribution device 10 shown in FIG. 1, a plurality of spreading elements 14a-14k are each attached to a support structure 34a-34d, wherein the position of the support structures 34a-34d can be changed by means of the adjustment device 20. Specifically, the support structures 34a-34d can be displaced in the adjustment directions 28a-28d transversely to the direction of travel. The movement of the support structures 34a-34d is implemented by means of corresponding actuators of the agricultural distribution device 10.

[0037] The spreading elements 14a-14k are configured as distribution nozzles. The support structures 34a-34d are configured as nozzle support units. The spreading elements 14a-14k, which are each attached to a support structure 34a-34d, comprise an unchangeable relative position to each other. Since the spreading elements 14a-14k are attached immovably to the respective support structures 34a-34d, no exact positioning of the spreading elements 14a-14k above the plant rows 26a-26k is possible despite the displaceability of the support structures 34a-34d in the transverse direction. In order to ensure that the granular material is nevertheless spread with an acceptable row reference, the control device is adapted to control the adjustment device 20 such that the average distance in the horizontal direction between the detected plant rows 26a-26k and the spreading elements 14a-14k respectively associated with the plant rows 26a-26k is minimal. Thus, the sum of distances x1-x10 between the detected plant rows 26a-26k and the spreading elements 14a-14k respectively associated with the plant rows 26a-26k is also minimized.

[0038] FIG. 3 also shows a section of a distribution linkage 12 of an agricultural distribution device 10. The adjustment device 20 of the agricultural distribution device 10 shown comprises a plurality of pivoting devices 30a-30k, by means of which the inclination of the spreading elements 14a-14k on the distribution linkage 12 can be changed in each case. By means of the pivoting devices 30a-30k, the inclination of the individual spreading elements 14a-14k can be adjusted independently of one another. The respective pivoting devices 30a-30k comprise actuators by means of which the spreading elements 14a-14k can be pivoted along the pivoting directions 32a-32k.

[0039] In the embodiment shown, the control device of the agricultural distribution device 10 is adapted to control the pivoting devices 30a-30k such that the spreading elements 14a-14k are each substantially aligned with one plant row 26a-26k during the spreading process so that granular material distributed by them impacts in the area of the plant rows 26a-26k.

[0040] Alternatively or additionally, however, the control device may be adapted to control the pivoting devices 30a-30k such that the spreading elements 14a-14k are each aligned with an area between two plant rows 26a-26k during the spreading process.

[0041] The adjustment options shown in FIG. 1 to FIG. 3 for adjusting the impact area AB of the granular material dispensed by the spreading elements 14a-14k can also be combined with each other. Thus, in addition to positioning devices 22a-22d for longitudinal displacement of the spreading elements 14a-14k in the transverse direction, an adjustment device 20 can simultaneously also have pivoting devices 30a-30k by means of which the inclination of the spreading elements 14a-14k can be changed during the spreading process.

REFERENCE SIGNS

[0042] 10 agricultural distribution device

[0043] 12 distribution linkage

[0044] 14a-14k spreading elements

[0045] 16 detection device

[0046] 18a-18j cameras

[0047] 20 adjustment device

[0048] 22a-22d positioning devices

[0049] 24 agricultural land

[0050] 26a-26k plant rows

[0051] 28a-28k adjustment directions

[0052] 30a-30k pivoting device

[0053] 32a-32k pivoting directions

[0054] 34a-34d support structure

[0055] AB impact areas

[0056] x1-x10 distances