DK202200077U3 - Agricultural machine for spreading liquids or slurries on a field - Google Patents

Abstract

An agricultural machine (200) for spreading liquids or slurries on a field is described. The machine comprises: a frame (2) with a front end (4) and a rear end (6); a first spreading boom (8) having a proximal end (10) and a distal end (12); a second spreading boom (14) having a proximal end (16) and a distal end (18); a number of outlets (20) for spreading a liquid or a slurry from a transport tank (22). The proximal end (10) of the first spreading boom (8) is rotatably suspended on the frame (2) of the agricultural machine in a first boom suspension (26) at a right side thereof in such a way that the first spreading boom (8) can rotate about a first, substantially vertical axis of rotation (28), and where the proximal end (16) of the second spreading boom (14) is suspended on the frame (2) of the agricultural machine in a second boom suspension (30) at a left side thereof on such a way that the second spreading boom (14) can rotate about another, essentially vertical axis of rotation (32), the agricultural machine being thereby able to change configuration between a working configuration, where the first spreading boom (8) and the second spreader boom (14) is unfolded, these extending outwards from the frame (2) of the agricultural machine, 15 and a transport configuration where the first spreader boom (8) and the second spreader boom (14) are folded in, being at least parts of the two spreading booms (8,14) thereby run essentially parallel to the longitudinal direction (X) of the frame (2). The outlets (20) for spreading liquid or slurry are respectively arranged along the extent of the first spreading boom (8) and along the extent of the second spreading boom (14). The agricultural-20 machine comprises on its right and left side a line holder (34,46) with a rotatable coil element (36,48) for winding a line, where the coil element comprises a line (38,50); where the first end of the line (40,52) is connected to the coil element (36,48), and where the second end of the line (42,54) is configured to be connected to an attachment point (44,56) on or the first spreading boom (8) and the second spreading boom (14). The Land-25 utility machine includes line holder suspension (58,60), which is arranged at a right and left side thereof, where the line holder (34,46) is suspended in the line holder suspension in such a way that the position of the line holder can be changed in a vertical direction in relation to the frame of the agricultural machine (2). The line holder suspensions (58,60) are arranged in front of the boom suspensions (26,30) belonging to the respective the first and the second spreading boom (8,14). Finally, the coil elements (36,48) are connected to a motor (62) for rotation thereof.

Description

l DK 202200077 U3

Agricultural machine for spreading liquids or slurries on a field

The field of creation

The present invention relates to the field of agricultural machinery. In a first aspect — the present invention relates to an agricultural machine for spreading liquids or slurries on a field. In another aspect, the present invention relates to a device for retrofitting an agricultural machine with spreading booms. In its third aspect, the present invention provides a use of the agricultural machine according to the first aspect of the invention or of the device according to the second aspect of the invention for spreading a liquid or a slurry on a field.

Background for the production

In agriculture, it has been well known for decades to use animal manure as fertilizer for crops. For spreading manure, an agricultural vehicle is used for this purpose, which includes a tank for storing the manure and two spreading booms which extend from each side of the vehicle. A number of drag hoses exit each spreading boom, which are in liquid connection with the interior of the slurry tank.

In this way, a driver can effectively fertilize a field that needs to be fertilized with manure, as a large area can be covered due to the two spreading booms with drag hoses on each side of the vehicle when it is driven across the field. The drag hoses are dragged along the ground and distribute the manure therein.

Each spreading boom is suspended in a suspension on the vehicle so that each spreading boom can rotate about a substantially vertical axis. This allows the spreading booms to be folded into a position alongside the vehicle. This is practical when the vehicle must be transported on public roads.

In certain designs, there is even an additional pivot on each spreading boom. With this, you can achieve an effective spreading width for the vehicle of 30 — 40 meters or more, while you will still be able to fold in the spreading booms when the vehicle is in a transport configuration, where it has to be driven on public roads.

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It is clear that with effective spreading widths for spreading booms of 30 — 40 meters or more, quite significant loads will occur on the vehicle suspensions themselves, which carry the spreading booms. In addition, the spreading booms themselves will be exposed to twisting and other loads. This is not least due to the drag hose's contact with the ground.

In addition, the uneven ground on the field, over which the vehicle naturally has to move, will contribute to accelerations in virtually all directions. This represents an additional strain on the towing booms and their suspension. — Finally, oscillations may occur due to constructive feedback in the small movements created by movement across the uneven ground surface. Such oscillations can contribute to quite significant, albeit short-lived, loads for the spreading booms and their suspension.

Ultimately, the loads and oscillations to which the spreading booms and their suspensions are subjected could contribute to the disintegration of all or parts of the spreading booms and their suspensions.

In an attempt to strengthen the construction of the known spreading booms, the spreading booms have been equipped with a kind of hinge which includes a rigid connection between each spreading boom and a frame on the vehicle, where the hinge extends from each spreading boom in an inclined upward direction.

Although this type of pre-stretching relieves the load on the spreader booms themselves, it has — however, been found to be practically impossible to have this type of reinforcement mounted sufficiently far out on each spreader boom in order to achieve sufficient stiffness for this type of reinforcement.

Thus, a need exists for stress suppression technology for an agricultural machine that includes spreading booms and is intended for spreading slurry or other liquids and slurries.

It is an object of the present invention to provide such technology

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Brief description of the production

This object is achieved according to the present invention in its first, second and third aspects.

Accordingly, according to a first aspect, an agricultural machine is provided for spreading liquids or slurries on a field, where the machine in the orientation defining forward straight travel comprises: - a frame with a front end and a rear end; -a first spreading boom having a proximal end and a distal end; -a second spreading boom having a proximal end and a distal end; - a number of outlets for spreading a liquid or a slurry from a transport tank; where the frame includes two or more wheels; where the proximal end of the first spreading boom is rotatably suspended on the frame of the agricultural machine in a first boom suspension at a right side thereof in such a way that the first spreading boom can rotate about a first, essentially vertical axis of rotation, and where the proximal end of the second spreader boom is suspended on the frame of the agricultural machine in another boom suspension at a left side thereof in such a way that the second spreader boom can rotate about another, essentially vertical axis of rotation, as the agricultural machine is thereby able to could change configuration between a working configuration where the first spreader boom and the second spreader boom are folded out, as these extend outwards from the frame of the agricultural machine, and a transport configuration where the first spreader boom and the second spreader boom are folded in , whereby at least parts of the two spreading booms thereby run essentially parallel to the longitudinal direction of the frame; — where the outlets for spreading liquid or slurry are arranged respectively along the extent of the first spreading boom and along the extent of the second spreading boom;

2 DK 202200077 U3 where the agricultural machine on its right side comprises a first line holder with a first rotatable coil element for winding a line, where the first coil element comprises a first line with a first end and a second end; wherein the first end of the first line is connected to the first coil element, and wherein the second end of the first line is configured to be connected to a first attachment point on the first boom; wherein the agricultural machine comprises at its left side a second line holder with a second rotatable spool member for winding a line, the second spool member comprising a second line having a first end and a second end; where the first end of the second line is — connected to the second coil element, and where the second end of the second line is configured to be connected to a second attachment point on the second boom; where the agricultural machine comprises a first line holder suspension which is arranged at a right side thereof, where the first line holder is suspended in this first line holder suspension in such a way that the position of the first line holder can be changed in a vertical direction relative to the frame of the agricultural machine; where the agricultural machine comprises a second line holder suspension which is arranged at a left side thereof, where the second line holder is suspended in this second line holder suspension in such a way that the position of the second line holder can be changed in a vertical direction in relation to the frame of the agricultural machine; where the first line holder suspension is arranged in front of the first boom suspension belonging to the first spreading boom, and where the second line holder suspension is arranged in front of the second > boom suspension belonging to the second spreading boom; where the first coil element and the second coil element are connected to a motor for rotation of the respective the first coil element and the second coil element.

In another aspect, the present invention relates to a device for retrofitting an agricultural machine with spreading booms, where the device comprises: - a line holder with a rotatable spool element;

. DK 202200077 U3 - a line holder suspension for the line holder, which is configured for placement at one of the sides of the agricultural machine; - an actuator; and -an engine; wherein the coil element comprises a line having a first end and a second end; wherein the first end of the line is connected to the spool member and the second end of the line is configured to be connected to an attachment point on a spreader boom of the agricultural machine; — where the line holder is displaceably suspended on the line holder suspension; wherein the actuator is connected to the line holder in such a way that actuation of the actuator is configured to shift the vertical position of the line holder relative to the line holder suspension; where the motor is in connection with the coil element of the line holder in such a way that the motor is configured to provide rotation of the coil element during operation thereof.

According to a third aspect, the present invention provides a use of an agricultural machine according to the first aspect of the invention or of a device according to the second aspect of the invention for spreading a liquid or a slurry on a field.

With the invention according to its various aspects, increased stability and reduced oscillation of spreader booms of an agricultural machine are achieved and thus also improved structural integrity and reliability of the agricultural machine is achieved.

Brief description of figures

Fig. 1 is a schematic diagram showing in perspective the operation of the agricultural machine according to the first aspect of the invention.

Fig. 2 is a drawing showing a rear view of an agricultural machine according to the first aspect of the invention.

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Fig. 3 is a drawing showing in perspective a line holder with a coil element which is used for the agricultural machine according to the first aspect of the invention.

Fig. 4 is a schematic diagram illustrating one way in which to vary the vertical position of a line holder for the agricultural machine according to the first aspect of the invention and also illustrates a device according to the second aspect of the invention.

Detailed description of the production

The invention first aspect — According to a first aspect according to the present invention, an agricultural machine 200 is provided for spreading liquids or slurries on a field, where the machine in the orientation defining forward straight travel comprises: - a frame 2 with a front end 4 and a rear end 6; - a first spreading beam 2 with a proximal end 10 and a distal end 2; - a second spreading boom 14 with a proximal end 16 and a distal end 18; - a number of outlets 20 for spreading a liquid or a slurry from a transport tank 22; where the frame includes two or more wheels 24; where the proximal end 10 of the first spreader boom 8 is rotatably suspended on the frame 2 of the agricultural machine in a first boom suspension 26 at a right side thereof in such a way that the first spreader boom 8 can turn about a first, essentially vertical turn - — axis 28, and where the proximal end 16 of the second spreading boom 14 is suspended on the frame 2 of the agricultural machine in a second boom suspension 30 at a left side thereof in such a way that the second spreading boom 14 can rotate about another, in the substantial vertical axis of rotation 32, the agricultural machine being thereby able to change configuration between a working configuration where the first spreader boom 8 and the second spreader boom 14 are unfolded, as these extend outwards from the frame 2 of the agricultural machine, and a transport configuration where the first spreader boom 8 and the second spreader boom 14 are folded in, with at least parts of the two spreader booms 8,14 thereby running essentially parallel to the longitudinal direction X of the frame 2;

, DK 202200077 U3 where the outlets 20 for spreading liquid or slurry are arranged respectively along the extent of the first spreading boom 8 and along the extent of the second spreading boom 14;

where the agricultural machine on its right side comprises a first line holder 34 with a first rotatable coil element 36 for winding a line, the first coil element comprising a first line 38 with a first end 40 and a second end 42; where the first end 40 of the first line is connected to the first coil element 36, and where the first line an-

that end 42 is configured to be connected to a first attachment point 44 on the first spreading boom 8; where the agricultural machine on its left side comprises a second line holder 46 with a second rotatable coil element 48 for winding a line, where the second coil element re-

comprises a second line 50 with a first end 52 and a second end 54; where the second line's first end 52 is connected to the second coil element 48, and where the second line's second end 54 is configured to be connected to a second attachment point 56 on the second spreader boom 14;

where the agricultural machine comprises a first line holder suspension 58, which is arranged at a right side thereof, where the first line holder 34 is suspended in this first line holder suspension in such a way that the position of the first line holder can be changed in a vertical direction relative for the agricultural machine frame 2;

where the agricultural machine comprises a second line holder suspension 60 which is arranged at a left side thereof, where the second line holder 46 is suspended in this second line holder suspension in such a way that the position of the second line holder can be changed in a vertical direction 1 relative to that of the agricultural machine frame 2;

— where the first line holder suspension 58 is arranged in front of the first boom suspension 26 belonging to the first spreading boom 8, and where the second line holder suspension 60 is arranged in front of the second boom suspension 30 belonging to the second spreading boom 14;

2 DK 202200077 U3 where the first coil element 36 and the second coil element 48 are connected to a motor 62 for rotation of the respective the first coil element 36 and the second coil element 62.

The agricultural machine according to the first aspect of the invention provides improved strength and structural integrity of the two spreading arms of the agricultural machine.

According to an embodiment of the agricultural machine according to the first aspect of the invention, the first line holder 34 and the second line holder 46 are each coupled to an actuator 64, such as a hydraulic actuator, where the actuator is configured to be able to change the vertical position of the first line holder 34 or the second line holder 46 in relation to the respective line holder suspension 58,60.

Variation of the vertical position of the first line holder 34 and the second line holder 46 in relation to the respective line holder suspension 58,60 is advantageous in the situations where — the lines 38,50 come close to the spreading booms 8,14.

According to an embodiment of the agricultural machine according to the first aspect of the invention, a common actuator is coupled to the first line holder 34 and the second line holder 46, the position of the respective the first line holder 34 and the second line holder 46, in relation to the respective line holder suspension 58,60, can thereby be changed simultaneously.

This embodiment represents a simplified construction of the agricultural machine.

According to an embodiment of the agricultural machine according to the first aspect of the invention, — a first actuator is coupled to the first line holder 34, and a second actuator is coupled to the second line holder 46, the vertical position of the respective the first line holder 34 and the second line holder 46, in relation to the respective line holder suspension 58,60, can thereby be changed independently of each other. — This achieves greater flexibility for one line holder independently of the other line holder and vice versa.

According to an embodiment of the agricultural machine according to the first aspect of the invention, the first coil element 36 and the second coil element 48 are connected to the same motor,

2 DK 202200077 U3 in that simultaneous rotation of the first coil element 36 and the second coil element 48 is thereby made possible.

This embodiment represents a simplified construction of the agricultural machine.

According to an embodiment of the agricultural machine according to the first aspect of the invention, the first coil element 36 is connected to a first motor and the second coil element 48 is connected to a second motor, the independent rotation of respectively the first coil element 36 and the second coil element 48 are thus made possible.

This achieves greater flexibility for one coil element independently of the other coil element and vice versa.

According to an embodiment of the agricultural machine according to the first aspect of the invention, — the motor or motors 62 for rotation of the coil element(s) 36,48 are independently configured for one or more of the following modes of operation: rotation of the coil element in one or two different directions of rotation , locking that prevents rotation of the coil element, freewheeling of the coil element, and freewheeling with braking of the coil element.

These modes represent desirable modes of operation for the agricultural machine.

According to one embodiment of the agricultural machine according to the first aspect of the invention, the motor or motors 62 for rotating the coil element 36,48 is a hydraulic motor. — As hydraulics are commonly used for agricultural machines, it is easy to adapt the agricultural machine to an existing hydraulic pump of e.g. a tractor to pull the agricultural machine.

According to an embodiment of the agricultural machine according to the first aspect of the invention — the hydraulic motor includes a pressure relief valve which, when the motor or motors 62 are locked to prevent rotation of the spool member 36, 48, is configured to switch to motor idle when a predetermined amount of traction force is recorded, as this predetermined amount of traction force results in a correspondingly increased oil pressure in the engine.

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In this way, overloading of the lines and suspension of the spreading booms can be avoided.

According to an embodiment of the agricultural machine according to the first aspect of the invention, the first rotatable coil element 36 and/or the second rotatable coil element 48 is rotatably mounted in a manner that enables rotation about a substantially vertical axis of rotation A.

This ensures better winding or unwinding of the line 38,50 on the respective rotatable spool element 36,48.

According to an embodiment of the agricultural machine according to the first aspect of the invention, the first spreader boom 8 and/or the second spreader boom 14 are each separately coupled to an actuator, such as a hydraulic actuator, which is configured to be able to change the configuration of the individual spreader boom 8.14 between the working configuration and the transport configuration and vice versa.

With this, each spreading boom 8,14 can be easily unfolded and folded in between its transport configuration and its working configuration.

According to an embodiment of the agricultural machine according to the first aspect of the invention, the motor or motors 62 for rotating the coil member 36, 48 are configured, when the vehicle is in a working configuration, to be able to exert a torque on the first rotatable coil member 36 and/or the second rotatable coil element 48, the first line — 38 or the second line 50 is thereby kept taut.

With a tight line, winding the line in obstacles in the field, such as crops or other vegetation, is avoided. — According to an embodiment of the agricultural machine according to the first aspect of the invention, the applied torque on the first rotatable coil element 36 and/or on the second rotatable coil element 48 is not sufficient to cause the first spreader boom 8 or the second spreader boom 14 to be brought into the transport configuration .

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Hereby, the movement with unfolding and folding of the spreading boom(s) alone is controlled with the actuator for changing the configuration of the individual spreading boom 8,14 between the working configuration and the transport configuration and vice versa. — According to an embodiment of the agricultural machine according to the first aspect of the invention, the actuator configured to be able to switch the configuration of the individual spreader boom 8,14 between the transport configuration and the working configuration has a force sufficient to overcome the torque exerted on the first rotatable coil element 36 and/or on the second rotatable coil element 48 when the individual spreading boom 8,14 is brought from the transport configuration to the work configuration.

According to an embodiment of the agricultural machine according to the first aspect of the invention, the applied torque on the first rotatable coil element 36 and/or on the second rotatable coil element 48 is sufficient to keep the associated line 38,50 taut when the individual spreader boom 8,14 is brought from the work configuration to the transport configuration.

According to an embodiment of the agricultural machine according to the first aspect of the invention, the agricultural machine further comprises a control system for controlling one or more of — the following parameters: the vertical position of the first line holder 34 in relation to the first line holder suspension 58; the vertical position of the second line holder 46 relative to the second line holder suspension 60; the motor 62 driving the first coil element 36; and the motor 62 driving the first coil element 48; the actuator configured to be able to switch the configuration of the individual spreading boom 8,14 between the working configuration and the transport configuration and vice versa.

These control options provide increased flexibility with respect to the operation of the agricultural machine. — According to an embodiment of the agricultural machine according to the first aspect of the invention, the agricultural machine is a self-propelled vehicle comprising means of propulsion, such as a motor.

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According to an embodiment of the agricultural machine according to the first aspect of the invention, the agricultural machine is a trailer for coupling to a self-propelled vehicle, such as a tractor or the like. — According to an embodiment of the agricultural machine according to the first aspect of the invention, the agricultural machine comprises a transport tank 22 for storing the liquid or slurry to be spread.

According to an embodiment of the agricultural machine according to the first aspect of the invention — the agricultural machine comprises a number of hoses 68, each of which is connected to one or more outlets 20 on the spreading booms 8,14, and each of which is configured to be connected to the transport tank 22.

This ensures the transport of liquid or slurry from the transport tank 22 to the outlets 20.

According to an embodiment of the agricultural machine according to the first aspect of the invention, the transport tank is coupled to a pump 68 for pumping the contents of the transport tank 22 from the tank to the outlets 20 on the spreading booms 8,14.

Hereby, the supply of liquid or slurry from the transport tank 22 to the outlets 20 can be ensured, and the amount of supplied liquid/slurry can also be controlled.

According to an embodiment of the agricultural machine according to the first aspect of the invention, — the first spreader boom 8 is attached to the frame 2 of the agricultural machine at a rear part thereof and the second spreader boom 14 is attached to the frame 2 of the agricultural machine at a rear part thereof.

According to an embodiment of the agricultural machine according to the first aspect of the invention, the first spreader boom 8 comprises one or more wheels 70 for supporting the first spreader boom 8 when it is in its working configuration and/or the second spreader boom 14 comprises one or more wheels 70 for support of the second spreading boom 14 when this is in its working configuration.

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These wheels ensure additional stability for the spreading booms 8,14.

According to an embodiment of the agricultural machine according to the first aspect of the invention, the first spreader boom 8 comprises a third boom suspension 72 which connects a proximal part 74 of the first spreader boom 8 with a distal part 76 of the first spreader boom 8, whereby the distal part 76 can rotate about a third, substantially vertical axis of rotation 78 relative to the proximal portion 74; and the second spreader boom 14 comprises a fourth boom suspension 80 which connects a proximal part 82 of the second spreader boom 14 with a distal part 84 of the second spreader boom 14, whereby the distal part 84 can rotate about a — fourth, essentially vertical axis of rotation 86 relative to the proximal part 82.

With this, an increased spreading width can be achieved and at the same time transport of the agricultural machine on public roads is possible. — According to an embodiment of the agricultural machine according to the first aspect of the invention, the first attachment point 44 is arranged on the proximal 74 part and/or on the distal part 76 of the first spreading boom 8; and/or the second attachment point 56 is arranged on the proximal part 82 and/or the distal part 84 of the second spreading boom 14. — According to an embodiment of the agricultural machine according to the first aspect of the invention, the first attachment point 44 of the first spreading boom 8 is arranged on a outer part of the respective part of the spreading boom 8; and the second attachment point 56 on the second spreading boom 14 is arranged on an outer part of the respective part of the spreading boom 14.

Having the attachment points 44,56 arranged further on the spreading booms provides increased stability for the spreading booms.

According to an embodiment of the agricultural machine according to the first aspect of the invention, the first attachment point 44 is arranged on a lower part of the first spreading boom 8 — and/or the second attachment point 56 is arranged on a lower part of the second spreading boom 14.

Since it is the lower part of the spreading booms that experiences the greatest rearward force, it is advantageous to have the attachment points 44,56 arranged at the bottom of the spreading booms.

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According to an embodiment of the agricultural machine according to the first aspect of the invention, a part of the first line 38, such as the part of the first line closest to the first coil element 36, has greater elasticity than the rest of the first line; and/or a part of the second line 50, such as the part of the second line closest to the second coil element 48, has greater elasticity than the rest of the second line.

This ensures a certain elasticity for the lines.

According to an embodiment of the agricultural machine according to the first aspect of the invention, the length of the first line 38 is adapted to the agricultural machine in such a way that when the first spreader boom 8 is in its working configuration and when the first line is attached to the first spreader boom attachment point 44, there is no some length of the first line 38 wound on the first coil element 36; and/or the length of the second line 50 is adapted — the agricultural machine in such a way that when the second spreading boom 14 is in its working configuration and when the second line is attached to the second spreading boom attachment point 56, there is no length of the second line 50 wound on the second coil element 48. > With this, it will not be possible to unroll more line 38,50 from the rotatable coil elements 36,48 when the spreading booms 8,14 are in a working configuration.

According to an embodiment of the agricultural machine according to the first aspect of the invention, the first line 38 and/or the second line 50 is independently selected from steel wire, rope, such as braided rope or twisted rope, chain or elastic.

According to an embodiment of the agricultural machine according to the first aspect of the invention, the agricultural machine is a manure spreader, a spreader for spreading artificial fertilizers, a spreader for spreading control agents, such as pesticides, herbicides, fungicides or the like, an irrigation vehicle for watering.

According to an embodiment of the agricultural machine according to the first aspect of the invention, the first line holder 34 and/or the second line holder 46 comprises a line guide 88 comprising a through hole 90, where the through hole is configured to in. DK 202200077 U3 receive the line 38,50 belonging to the line holder 34,46 and thereby guide the line 38,50 in relation to the rotatable spool element 36,48 when winding it up.

This provides more secure winding/unwinding of line 38,50 from the rotatable coil elements 36,48.

According to an embodiment of the agricultural machine according to the first aspect of the invention, the line guide 88 is made of a polymeric material such as nylon.

The production another aspect

In another aspect, according to the invention, a device 300 is provided for retrofitting on an agricultural machine 200 with spreading boom 200, where the device comprises: - a line holder 34, 46 with a rotatable coil element 36, 48; -a line holder suspension 58,60 for the line holder, which is configured for placement at one of the sides of the agricultural machine; - an actuator 64; and -a motor 62; — where the coil element 36,48 comprises a line 38,50 with a first end and a second end; wherein the first end of the line is connected to the spool member 36,48 and wherein the second end of the line is configured to be connected to an attachment point on a spreader boom 8,14 on the agricultural machine; — where the line holder is displaceably suspended on the line holder suspension 58,60; wherein the actuator 64 is connected to the line holder 34,46 in such a manner that actuation of the actuator 64 is configured to shift the vertical position of the line holder relative to the line holder suspension 58,60; where the motor 62 is in connection with the coil element 36, 48 of the line holder, in such a way that the motor, when operated, is configured to provide rotation of the coil element 36, 48.

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According to an embodiment of the device according to the second aspect of the invention, technical features of the device are as defined for the agricultural machine according to the first aspect of the invention. — The third aspect of creation

According to the third aspect of the invention, a use of an agricultural machine according to the first aspect of the invention or of a device according to the second aspect of the invention for spreading a liquid or a slurry on a field is indicated. — Referring now to the figures in order to better illustrate the present production, Fig. 1 a schematic diagram which shows in perspective the operation of the agricultural machine according to the first aspect of the invention.

Fig. 1 shows the agricultural machine 200 in the form of a trailer for attachment to the back of a tractor or the like. The agricultural machine is for spreading liquids or slurries on a field.

The agricultural machine comprises, in the orientation that defines forward straight travel, a frame 2 with a front end 4 and a rear end 6, a first spreader boom 2 with a proximal end 10 and a distal end 12, a second spreader boom 14 with a proximal end 16 and a distal end 18, a number of outlets 20 for spreading a liquid or a slurry from the transport tank 22.

As can be seen, the frame includes a number of wheels 24 for supporting the weight of the transporter 22, which may for example contain slurry.

The proximal end 10 of the first spreader boom 8 is rotatably suspended on the frame 2 of the agricultural machine in a first boom suspension 26 at a right side thereof in such a way that the first spreader boom 8 can rotate about a first, essentially vertical axis of rotation 28 .

In the same way, the proximal end 16 of the second spreading boom 14 is suspended on the frame 2 of the agricultural machine in a second boom suspension 30 at a left side thereof on a

2 DK 202200077 U3 such a way that the second spreader boom 14 can rotate about another, essentially vertical, axis of rotation 32.

These two suspensions mean that the agricultural machine is able to change configuration between a working configuration where the first spreader boom 8 and the second spreader boom 14 are unfolded, as these booms thereby extend outwards from the frame 2 of the agricultural machine , and a transport configuration in which the first spreader boom 8 and the second spreader boom 14 are folded in, with at least parts of the two spreader booms 8,14 thereby running essentially parallel to the longitudinal direction X of the frame 2 (not shown in Fig. 1) .

It can be seen that the outlets 20 for spreading liquid or slurry are arranged respectively along the extent of the first spreading boom 8 and along the extent of the second spreading boom 14. This arrangement results in the agricultural machine being able to spread liquids or slurries in a relatively large width when the agricultural machine is advanced across a field.

In order to achieve increased stability for the two spreading booms, the agricultural machine comprises a first line 38 and a second line 50, which are stretched between a front part of the agricultural machine and a point on a spreading boom, respectively at a right side and a left side of the agricultural machine .

Thus, the agricultural machine thus comprises on its right side a first line holder 34 with a first rotatable coil element 36 for winding a line, where the first coil element comprises a first line 38 with a first end 40 and a second end 42; where the first end 40 of the first line is connected to the first coil element 36, and where the second end 42 of the first line is configured to be connected to a first attachment point 44 on the first spreader boom 8.

Likewise, the agricultural machine comprises on its left side a second line holder 46 with a second rotatable coil element 48 for winding a line, the second coil element comprising a second line 50 with a first end 52 and a second end 54; where the first end 52 of the second line is connected to the second coil element 48, and where the second end 54 of the second line is configured to be connected to a second attachment point 56 on the second spreader boom 14.

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Fig. 1 also shows that the agricultural machine comprises a first line holder suspension 58, which is arranged at a right side thereof, where the first line holder 34 is suspended in this first line holder suspension in such a way that the position of the first line holder can be changed in — a vertical direction in relation to the frame of the agricultural machine 2.

Finally, Fig. 1 also that the agricultural machine comprises a second line holder suspension 60 which is arranged at a left side thereof, where the second line holder 46 is suspended in this second line holder suspension in such a way that the position of the second line holder can be — changed in a vertical direction in relation to to the frame of the agricultural machine 2.

It can be seen that the first line holder suspension 58 is arranged in front of the first boom suspension 26 belonging to the first spreading boom 8. Correspondingly, the second line holder suspension 60 is arranged in front of the second boom suspension 30 belonging to the second spreading boom 14.

The first coil element 36 and the second coil element 48 are connected to a motor 62 for rotation of the respective the first coil element 36 and the second coil element 62.

The lines 38, 50 and the rotatable coil suspensions can thereby contribute to bringing the spreading booms 8, 14 from a working configuration where the spreading booms are folded out to a transport configuration where the spreading booms 8, 14 are folded in, as the rotatable coil elements 36 ,48 can be brought into rotation, whereby the lines 38,50 pull in the spreading booms 8,14. — The adjustment of the vertical position of the line holder 34,46 is an advantage when the spreading booms in their movement from the unfolded working configuration to the transport configuration, where they are folded in, as it is possible to avoid that the lines 38,50 collide with the spreading booms 8,14. The same benefit is achieved when the spreader booms are brought from their transport configuration to their working configuration.

Fig. 2 is a drawing showing a corresponding agricultural machine according to the first aspect of the invention seen from the rear.

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Fig. 2 shows the agricultural machine 200 with a transport tank 22 and comprising a first spreading boom 8 and a second spreading boom 14 each comprising a number of outlets 20 for spreading liquid or slurry which is transported in the transport tank 22. A pump 68 ensures the flow of the liquid/slurry from the tank 22 to the expirations 20.

Fig. 2 illustrates very well the relatively large working width of the spreader booms in relation to the width of the actual transport part of the agricultural machine, and makes it clear that large forces are at play between each spreader boom 8,14, their respective suspension and the frame 2 of the agricultural machine.

Fig. 3 is a drawing showing in perspective a line holder with a coil element which is used for the agricultural machine according to the first aspect of the invention.

Fig. 3 shows the line holder 34,46. The line holder includes a first or a second rotatable spool element 36,48. The spool element is intended for winding up the line 38.50. The coil element can be brought into rotation via the hydraulic motor 62.

It can be seen that the coil element 36,48 is rotatably suspended in a manner that enables rotation about a substantially vertical axis of rotation A.

It can also be seen that the line holder 34,46 comprises a line guide 88. The line guide comprises a through hole 90 for receiving the line 38,50 belonging to the line holder 34,46 and thereby guiding the line 38,50 in relation to the rotatable spool element 36, 48 when rolling it up.

This arrangement provides better control of the line 38,50 in its winding or unwinding from the rotatable spool member 36,48.

Fig. 4 is a schematic diagram illustrating one way in which to vary the vertical position of a line holder for the agricultural machine according to the first aspect of the invention and also illustrates a device according to the second aspect of the invention.

Fig. 4 thus shows a way in which a line holder 34,46 with its rotatable spool element 36,48 can be suspended on a line holder suspension 58,60.

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It can be seen that the coil element 36,48 is arranged on the line holder 34,46 and that the line holder 34,35 is coupled to the actuator 64, which is a hydraulic actuator. The actuator is configured to be able to change the vertical position of the line holder 34,46 in relation to the respective line holder suspension 58,60.

It can be seen that a first end 40,52 of the line 38,50 is attached to the rotatable coil element 36,48 and that the free second end 42,54 of the line 38,50 is ready for attachment to a spreading boom.

It is advantageous to let the motor 62 for rotation of the reel elements 36, 48 and to let the actuator 64 for adjusting the vertical position of the line holders 34, 46 be hydraulically driven and to provide a control system for controlling these in order to be able controlling the vertical position of the first line holder 34 relative to the first line holder suspension 58; the vertical position of the second line holder 46 in relation to the other line holder suspension 60; the motor 62 driving the first coil element 36; and the motor 62 that drives the first coil element 48 .

It should be understood that all features and achievements mentioned above and in the appended claims in relation to one aspect and associated embodiments of the present invention — apply equally to other aspects of the present invention and embodiments thereof.

1 DK 202200077 U3

Figure references 2 Frame of agricultural machine 4 Front end of frame 6 Rear end of frame 8 First spreading boom

Proximal end of first spreading boom 12 Distal end of first spreading boom 14 Second spreading boom 16 Proximal end of second spreading boom 10 18 Distal end of second spreading boom

Outlet on spreading boom 22 Transport tank for liquid or slurry 24 Wheel of agricultural machine 26 First boom suspension 13 28 Vertical axis of rotation for first spreading boom 30 Second boom suspension 32 Vertical axis of rotation for second spreading boom 34 First line holder 36 First rotatable spool element 20 38 First line 40 First end of first line 42 Second end of first line 44 First attachment point on first spreading boom 46 Second line holder 48 Second rotatable coil element

Second line 52 First end of second line 54 Second end of second line 56 Second attachment point on second spreading boom

> DK 202200077 U3 58 First line holder suspension 60 Second line holder suspension 62 Motor for rotation of spool element 64 Actuator for adjusting vertical position of line holder on line holder suspension 68 Pump 70 Wheel on spreading boom 72 Third boom suspension on first spreading boom 74 Proximal part of first spreading boom 76 Distal part of first spreading boom 78 Third vertical axis of rotation on first spreading boom 80 Fourth boom suspension 82 Proximal part of second spreading boom 84 Distal part of second spreading boom 86 Fourth vertical axis of rotation on second spreading boom 88 Line guide 90 Through hole in line guide 100 Arrangement for mounting on agricultural machinery 200 Agricultural machinery

A Vertical axis of rotation for rotatable coil element

X Longitudinal direction of frame

Claims (36)

3 DK 202200077 U3 Utility model requirements 1. Agricultural machine (200) for spreading liquids or slurries on a field, where the machine in the orientation defining forward straight travel comprises: - a frame (2) with a front end (4) and a rear end (6); - a first spreading boom (8) with a proximal end (10) and a distal end (12); - a second spreading boom (14) with a proximal end (16) and a distal end (18); - an equal number of outlets (20) for spreading a liquid or a slurry from a transport tank (22); wherein the frame includes two or more wheels (24); where the proximal end (10) of the first spreading boom (8) is rotatably suspended on the frame (2) of the agricultural machine in a first boom suspension (26) at a right side thereof in such a way that the first spreading boom (8 ) can rotate about a first, essentially vertical axis of rotation (28), and where the proximal end (16) of the second spreading boom (14) is suspended on the frame (2) of the agricultural machine in a second boom suspension (30) by a left side thereof in such a way that the second spreader boom (14) can rotate around another, in the essential vertical axis of rotation (32), as the agricultural machine is thereby able to — change configuration between a working configuration where the the first spreader boom (8) and the second spreader boom (14) are unfolded, as these extend outwards from the frame (2) of the agricultural machine, and a transport configuration in which the first spreader boom (8) and the second spreader boom (14) is folded in, with at least parts of the two spreading booms (8,14) thereby running substantially parallel to the longitudinal direction (X) of the frame (2); where the outlets (20) for spreading liquid or slurry are respectively arranged along the extent of the first spreading boom (8) and along the extent of the second spreading boom (14); — where the agricultural machine comprises on its right side a first line holder (34) with a first rotatable coil element (36) for winding a line, the first coil element comprising a first line (38) with a first end (40) and a second end (42); wherein the first end (40) of the first line is connected to the first coil element (36) and wherein the first 4 DK 202200077 U3 line's other end (42) is configured to be connected to a first attachment point (44) on the first spreading boom (8); where the agricultural machine on its left side comprises a second line holder (46) with a — second rotatable coil element (48) for winding a line, the second coil element comprising a second line (50) with a first end (52) and a second end (54); where the second line's first end (52) is connected to the second coil element (48), and where the second line's second end (54) is configured to be connected to a second attachment point (56) on the second spreading boom (14); where the agricultural machine comprises a first line holder suspension (58) which is arranged at a right side thereof, where the first line holder (34) is suspended in this first line holder suspension in such a way that the position of the first line holder can be changed in a vertical direction 1 relation to the frame of the agricultural machine (2); where the agricultural machine comprises a second line holder suspension (60) which is arranged at a left side thereof, where the second line holder (46) is suspended in this second line holder suspension in such a way that the position of the second line holder can be changed in a ver- tical direction relative to the frame of the agricultural machine (2); where the first line holder suspension (58) is arranged in front of the first boom suspension (26) belonging to the first spreading boom (8), and where the second line holder suspension (60) is arranged in front of the second boom suspension (30) belonging to the second spreading boom ( 14); — where the first coil element (36) and the second coil element 48 are connected to a motor (62) for rotation of the respective the first coil element (36) and the second coil element (62). 2. Agricultural machine (200) according to claim 1, wherein the first line holder (34) and the second line holder (46) are each coupled to an actuator (64), such as a hydraulic actuator, wherein the actuator is configured to be able to change the vertical position of the first line holder (34) or the other line holder (46) in relation to the respective line holder suspension (58,60). DS DK 202200077 U3 3. Agricultural machine (200) according to claim 2, where a common actuator is coupled to the first line holder (34) and the second line holder (46), the position of the respective the first line holder (34) and the second line holder (46), in relation to the respective line holder suspension (58,60), can thereby be changed simultaneously. 4, Agricultural machine (200) according to any one of claims 1 or 2, where a first actuator is coupled to the first line holder (34) and where a second actuator is coupled to the second line holder (46), the vertical position of the first line holder (34) and the second line holder (46), in relation to the respective line holder suspension (58,60), — can thereby be changed independently of each other. 5. Agricultural machine (200) according to any one of the preceding claims, wherein the first coil element (36) and the second coil element (48) are connected to the same motor, the simultaneous rotation of the first coil element (36) and the second coil element (48) — is thus made possible. 6. Agricultural machine (200) according to any one of claims 1 — 4, wherein the first coil element (36) is connected to a first motor and where the second coil element (48) is connected to a second motor, the independent rotation of . the first coil element (36) and the second coil element (48) are thus made possible. 7. Agricultural machine (200) according to any one of the preceding claims, wherein the motor or motors (62) for rotating the coil element(s) (36,48) are independently configured for one or more of the following operating modes modes: rotation of the coil element — in one or two different directions of rotation, locking that prevents rotation of the coil element, freewheeling of the coil element, and freewheeling with braking of the coil element. 8. Agricultural machine (200) according to any one of the preceding claims, wherein the motor or motors (62) for rotating the coil element (36,48) is a hydraulic motor. 9. Agricultural machine (200) according to claim 8, wherein the hydraulic motor comprises a relief valve which, when the motor or motors (62) are locked to prevent rotation of the coil element (36,48), is configured to to switch to idling for the engine when a 6 DK 202200077 U3 predetermined amount of traction force is registered, as this predetermined amount of traction force results in a correspondingly increased oil pressure in the engine. 10. Agricultural machine (200) according to any one of the preceding claims, wherein the — first rotatable coil element (36) and/or the second rotatable coil element (48) is rotatable suspension in a way that enables rotation about an i the essential vertical, axis of rotation (A). 11. Agricultural machine (200) according to any one of the preceding claims, where the — first spreading boom (8) and/or the second spreading boom (14) are each coupled to an actuator, such as a hydraulic actuator, which is configured to be able to switch the configuration of the individual spreading boom (8,14) between the work configuration and the transport configuration and vice versa. Agricultural machine (200) according to any one of the preceding claims, wherein the motor or motors (62) for rotating the spool member (36,48) is configured to, when the vehicle is in a working configuration, be able to exert a torque on the first rotatable coil element (36) and/or the second rotatable coil element (48), the first line (38) or the second line (50) is thereby kept taut. 13. Agricultural machine (200) according to claim 12, wherein the torque exerted on the first rotatable coil element (36) and/or on the second rotatable coil element (48) is not sufficient to cause the first spreading boom (8) or the second spreading boom (14) is brought into the transport configuration. 14. Agricultural machine (200) according to claims 11 and 13, where the actuator configured to be able to switch the configuration of the individual spreading boom (8,14) between the transport configuration and the work configuration has a force sufficient to overcome the torque exerted on the first rotatable coil element (36) and/or on the second rotatable coil element (48) when the individual spreading boom (8,14) is brought from the transport configuration to the working configuration. 15. Agricultural machine (200) according to any one of claims 12 - 14, wherein the exerted torque on the first rotatable coil element (36) and/or on the 7 DK 202200077 U3 second rotatable coil element (48) is sufficient to keep the associated line (38,50) taut when the individual spreading boom (8,14) is brought from the working configuration to the transport configuration. 16. Agricultural machine (200) according to any one of the preceding claims further comprising a control system for controlling one or more of the following parameters: the vertical position of the first line holder (34) in relation to the first line holder suspension (58) ; the vertical position of the second line holder (46) in relation to the second line holder suspension (60); the motor (62) driving the first coil element (36); and the motor (62) driving the first coil element (48); the actuator configured to be able to switch the configuration of the individual spreading boom (8,14) between the working configuration and the transport configuration and vice versa. Agricultural machine (200) according to claim 1, wherein the agricultural machine is a self-propelled vehicle comprising means of propulsion, such as an engine. 18. Agricultural machine (200) according to claim 1, where the agricultural machine is in the form of a trailer for coupling to a self-propelled vehicle, such as a tractor or the like. 19. Agricultural machine (200) according to any one of the preceding claims, wherein the agricultural machine comprises a transport tank (22) for storing the liquid or fertilizer to be spread. 20. Agricultural machine (200) according to any one of the preceding claims, where — the agricultural machine comprises a number of hoses (68), each of which is connected to one or more outlets (20) on the spreading booms (8,14), and which each is configured to be connected to the transport tank (22). 21. Agricultural machine (200) according to claim 19 or 20, where the transport tank is coupled to a pump (68) for pumping the contents of the transport tank (22) from the tank to the outlets (20) on the spreading booms (8,14). 22. Agricultural machine (200) according to any one of the preceding claims, wherein the first spreading boom (8) is attached to the frame (2) of the agricultural machine at a rear part 9 DK 202200077 U3 thereof and where the second spreading boom (14) is attached to the frame (2) of the agricultural machine at a rear part thereof. 23. Agricultural machine (200) according to any one of the preceding claims, wherein the — first spreading boom (8) comprises one or more wheels (70) for supporting the first spreading boom (8) when it is in its working configuration and/or where the second spreading boom (14) comprises one or more wheels (70) for supporting the second spreading boom (14) when it is in its working configuration. Agricultural machine (200) according to any one of the preceding claims, wherein the first spreading boom (8) comprises a third boom suspension (72) which connects a proximal part (74) of the first spreading boom (8) with a distal part (76) of the first spreading beam (8), whereby the distal part (76) can thereby rotate about a third, essentially vertical axis of rotation (78) in relation to the proximal part (74); and wherein the second spreading boom (14) comprises a fourth boom suspension (80) which connects a proximal part (82) of the second spreading boom (14) with a distal part (84) of the second spreading boom (14), the distal part (84) can thereby rotate about a fourth, essentially vertical axis of rotation (86) in relation to the proximal part (82). 25. Agricultural machine (200) according to claim 24, wherein the first attachment point (44) is arranged on the proximal (74) part and/or on the distal part (76) of the first spreading boom (8) and/or wherein the second attachment point (56) is arranged on the proximal part (82) and/or the distal part (84) of the second spreading boom (14). Agricultural machine (200) according to any one of the preceding claims, wherein the first attachment point (44) of the first spreading boom (8) is arranged on an outer part of the respective part of the spreading boom (8); and where the second attachment point (56) on the second spreading boom (14) is arranged on an outer part of the respective part of the spreading boom (14). 27. Agricultural machine (200) according to any one of the preceding claims, wherein the first attachment point (44) is arranged on a lower part of the first spreading boom (8) and/or where the second attachment point (56) is arranged on a lower part of the second spreading boom (14). Do DK 202200077 U3 Agricultural machine (200) according to any one of the preceding claims, wherein a part of the first line (38), such as the part of the first line closest to the first coil element (36), has greater elasticity than the rest of the first line; and/or where a portion of the second line (50), such as the portion of the second line closest to the second coil element (48), has greater elasticity than the rest of the second line. Agricultural machine (200) according to any one of the preceding claims, wherein the length of the first line (38) is adapted to the agricultural machine in such a way that when the first spreading boom (8) is in its working configuration and when the first line is attached to the first boom attachment point (44), no length of the first line (38) is wound on the first spool member (36); and/or where the length of the second line (50) is adapted to the agricultural machine in such a way that when the second spreading boom (14) is in its working configuration and when the second line is attached to the second spreading boom attachment point (56), is there no length of the second line (50) wound on the second coil element (48). 30. Agricultural machine (200) according to any one of the preceding claims, wherein the first line (38) and/or the second line (50) is independently selected from steel wire, rope, such as braided rope or twisted rope, chain or elastic. 31. Agricultural machine (200) according to any one of the preceding claims, wherein the agricultural machine is a manure spreader, a spreader for spreading artificial fertilizers, a spreader for spreading control agents, such as pesticides, herbicides, fungicides or similar, an irrigation vehicle for irrigation. 32. Agricultural machine (200) according to any one of the preceding claims, wherein the first line holder (34) and/or the second line holder (46) comprises a line guide (88) comprising a through hole (90), where the through hole is configured to receive the line (38,50) belonging to the line holder (34,46) and thereby guide the line (38,50) in relation to the rotatable coil element (36,48) when winding it up. 33. Agricultural machine (200) according to claim 32, where the line guide (88) is made of a polymeric material, such as nylon. 20 DK 202200077 U3 34. Device (300) for retrofitting an agricultural machine (200) with spreading booms (8,14), where the device comprises: - a line holder (34,46) with a rotatable coil element (36,48); - a line holder suspension (58,60) for the line holder, which is configured to be placed at one of the sides of the agricultural machine; - an actuator (64); and - a motor (62); wherein the coil element (36,48) comprises a line (38,50) having a first end and a second end; wherein the first end of the line is connected to the spool member (36,48) and wherein the second end of the line is configured to be connected to an attachment point on a spreading boom (8,14) of the agricultural machine; where the line holder is displaceably suspended on the line holder suspension (58,60); wherein the actuator (64) is connected to the line holder (34,46) in such a way that actuation of the actuator (64) is configured to shift the vertical position of the line holder relative to the line holder suspension (58,60); where the motor (62) is in connection with the coil element (36,48) of the line holder, in such a way that the motor is configured to provide rotation of the coil element (36,48) during operation thereof. 35. Device (300) according to claim 34, where technical features of the device are as defined for the agricultural machine in any of claims 1 — 33. 36. Use of an agricultural machine (200) according to any one of claims 1-33 or of a device (300) according to claim 34 or 35 for spreading a liquid or a slurry on a field.