• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Device for spreading a liquid over a field, comprising a vehicle and a spraying device mounted on the vehicle, comprising a spray boom provided with spray nozzles, characterized in that at least a part of the spray boom can rotate in a horizontal plane about a vertical axis of rotation relative to the vehicle over a relatively large angle of at least 30 °. Also a method for spreading a liquid over a field by means of such a device, characterized in that during a working run the at least one part of the boom rotates within the relatively large angle relative to the vehicle such that the horizontal rotational position of the at least one portion of the boom remains substantially constant with respect to the field. The at least one section of the boom can herein rotate relative to the vehicle within the relatively large angle under the influence of the inertia of the at least one section of the boom and / or be rotated within the relatively large angle by means of first means provided for this purpose . Thus, the horizontal velocities of the nozzles relative to the field, at least as long as they do not run into a final limit and within certain limits, remain mutually equal and constant, and an even distribution of the liquid over the field, within strict limits, can be achieved. . The forces on the boom and the other parts can thus also remain limited, so that a relatively light and simple design of the boom and suspension thereof will suffice.
    公开号:NL1043136A
    申请号:NL1043136
    申请日:2019-01-30
    公开日:2019-08-12
    发明作者:Hermanus Vossebeld Hendrikus
    申请人:Hermanus Vossebeld Hendrikus；
    IPC主号:
    专利说明:


    Netherlands Patent Office © 1043136 © Α PATENT APPLICATION
    Application number: 1043136
    Application submitted: January 30, 2019
    (30) Priority: © Applicant (s): 5 February 2018 NL 1042742 Hendrikus Hermanus Vossebeld in HENGELO. © Application registered: © Inventor (s): August 12, 2019 Hendrikus Hermanus Vossebeld in HENGELO. (43) Application published:August 13, 2019 © Authorized representative:No.
    © Device and method for spreading a liquid over a field (57) Device for spreading a liquid over a field, comprising a vehicle and a spraying device mounted on the vehicle, comprising a spray boom provided with spray nozzles, characterized in that at least at least a portion of the boom can rotate in a horizontal plane about a vertical axis of rotation relative to the vehicle through a relatively large angle of at least 30 °. Also a method for spreading a liquid over a field by means of such a device, characterized in that during a working run the at least one part of the boom rotates within the relatively large angle relative to the vehicle such that the horizontal rotational position of the at least one portion of the boom remains substantially constant with respect to the field. The at least one part of the boom can rotate relative to the vehicle within the relatively large angle under the influence of the inertia of the at least one part of the boom and / or be rotated within the relatively large angle by means of first means provided for this purpose . Thus, the horizontal velocities of the nozzles relative to the field, at least as long as they do not run into a final limit and within certain limits, remain mutually equal and constant, and an even distribution of the liquid over the field, within strict limits, can be achieved. . The forces on the spray boom and the other parts can thus also remain limited, so that a relatively light and simple design of the spray boom and suspension thereof will suffice.
    NL A 1043136
    This publication corresponds to the documents originally submitted.
    Device and method for the far;
    ft va »a liquid over a field
    FIELD OF THE INVENTION
    The invention relates to a device for spreading a liquid over a field, comprising a vehicle and a spraying device mounted on the vehicle, comprising a spraying boom provided with spray nozzles. The invention also relates to a method for spreading a liquid over a field by means of such a device.
    BACKGROUND OF THE INVENTION
    In agriculture, such devices, generally referred to as field sprayers, are known and in all kinds of embodiments, self-propelled or drawn, a field sprayer comprises a spray boom provided with spray nozzles, generally referred to as spray nozzles, with which a spout agent can be distributed over a field, for example liquid fertilizer, a crop protection agent such as a herbicide or pesticide, or foam earth. During spraying, the boom is unfolded and then extends transversely to the direction of travel of the vehicle.
    The closing means must be distributed uniformly and in a desired amount per area unit within the limits within the field. It is important here that the horizontal velocities of the nozzles relative to the field, within certain limits, remain the same and constant. With the ever-increasing working widths and the ever-stricter requirements regarding the amount of spraying agent spread per unit area and the even distribution thereof, it cannot be met with known field sprayers, or at least with increasing difficulty.
    Bends in a working run lead to speed differences compared to the nozzles. The amount of spraying agent spread per unit area is inversely proportional to the speed of a nozzle. Too little spraying agent can spread in an outer bend and too much in an inner bend. For example, if the vehicle makes a turn with a radius equal to the length of the boom, the speed of a nozzle in the outer curve is about three times as fast as the speed of a nozzle in the inner curve. Moreover, because cornering usually requires extra course corrections, the speed differences between them become even greater there.
    On uneven terrain all kinds of movements and forces arise that can be transmitted from the vehicle to the boom. Known field sprayers have all kinds of provisions for absorbing unwanted movements and forces in the vertical direction, such that they are not transmitted to the spray boom at least to a small extent. However, with known sprayers, movements and forces in the horizontal direction are transmitted from the vehicle to the spray boom at least to a large extent. That in turn leads to changes and mutual differences in the horizontal speeds of. the nozzles relative to the substrate, and to uneven spread of the spray agent.
    With known field sprayers it is tried, with simple to advanced systems, to return a horizontally twisted boom as quickly as possible to a horizontally angled position relative to the vehicle, with high mutual differences in the horizontal speeds of the nozzles relative to the vehicle. substrate. Also with known field sprayers, avoiding obstacles, work runs along non-straight field boundaries and course corrections cause relatively large changes and mutual differences in the horizontal speeds of the nozzles relative to the substrate, which leads to a relatively large uneven spread of the spraying agent.
    A boom can usually be folded in completely or partially, for example for transport by road or if a smaller working width is desired. Usually, the extreme parts of the boom can also be hinged with respect to the rest of the boom. For example, when with a. extreme part is hit by an obstacle, giving that extreme part along and turning away, so that damage can be prevented or at least reduced, one speaks of "obstacle safety". However, if a partially folded boom is used and an obstacle is hit, that obstacle protection does not work and serious damage can still occur.
    When working on a field, a substantial part of the time is used to keep maneuvering the field sprayer into a correct position, before starting a work run, in the corners of the field and 'while' turning, on the headlands. That turning and maneuvering: must be done with caution, as otherwise excessive forces can occur on the boom and the other parts. An angle of a field with a biagonal angle of less than 90 ° is difficult with known field sprayers, and cannot be sprayed evenly, with the result that overdosing and / or under-dosing and extra wheel tracks on site, and extra loss of time.
    In order to be able to absorb movements and forces in the horizontal direction, a relatively swinging boom is chosen for a number of known field sprayers and suspension thereof. However, this leads to more unwanted track formation and higher costs. Moreover, undesirable movements of the boom in the horizontal plane are reduced by the relatively high inertia of the heavier structure, but they continue to occur. Usually a suspension and / or damped suspension of the spray boom is chosen, for example by means of gas springs with built-in damping, a rubber-like material, or mechanical springs with hydraulic damping. When the boom. from one. When the neutral position rotates in the horizontal plane, a counter force immediately follows that increases as the rotation of the boom relative to the neutral position increases. Turning the boom back to the neutral position is dampened more or less.
    The maximum horizontal scenario of the boom of such field sprayers is relatively small, with a hard end limit. The counterforce in horizontal rotation of the boom from the neutral position should be relatively large to quickly return the boom to the neutral position and to prevent the boom from approaching the hard end limit. All this results in unwanted relatively large forces on the boom and the other parts.
    movements of turning the
    3.5
    DEI 0314686 Ai, for example, describes controlling a boom horizontally by means of hydraulic cylinders and accumulators. With a boom in a horizontal plane from a neutral position, a counterforce immediately follows. The behavior is very similar to that of a system with damped gas springs. In addition to such a passively regulated system, actively regulated systems are also known. For example, EP2064948A2 describes the use of hydraulic cylinders, in which horizontal movements of the boom are hydraulically damped and corrected by one which runs through a pipe system and adjustable lubrications. On throttling systems the disadvantage is that with faster horizontal movements of the required counter forces increase exponentially. DE 102015il3721 A1 and describe systems in which the horizontal rotation of the boom is measured from a neutral position with sensitive sensors, after which an electronic control unit calculates an appropriate signal that is sent to control valves and / or a set of motors and / or electrically adjustable dampers. Measuring, calculating and regulating must take place continuously, quickly and with high accuracy, in which case durable and expensive equipment is required.
    oil flow boom
    EP2837285AI
    To summarize, with known field sprayers, with a relatively small maximum horizontal scenario of the spray boom and a hard final limit, a quick and with relatively large counterforce is reacted to horizontal rotation of the spray boom from a neutral position with respect to the vehicle, resulting in large forces. the boom and the other parts result in a relatively heavy-duty boom and suspension thereof, and / or require a more or less complex suspension and / or damping and / or require an expensive electronic control whereby, nevertheless or precisely, an even distribution of a spraying agent, within strict limits, is not achieved.
    The invention now provides a solution which does not at least know the aforementioned disadvantages to a lesser extent and also has a number of its own advantages.
    Summary of the invention
    The invention provides a device for spreading a liquid over a field, comprising a vehicle and a spraying device mounted on the vehicle, comprising a spray boom provided with spray nozzles, characterized in that at least a part of the spray boom in a horizontal plane around a vertical axis of rotation can rotate with respect to the vehicle over a relatively large angle of at least 3Q Ö. The invention also provides a method for spreading a liquid over a field, by means of such a device, characterized in that during a working pass it at least.
    one part of the boom relative to: the vehicle rotates within the relatively large angle such that the horizontal angle of the at least one part of the boom remains substantially constant with respect to the field. Thus, the horizontal velocities of the spray nozzles relative to the field, at least as long as they do not run into a final limit and within certain limits, remain mutually equal and constant, and an even distribution of the liquid over the field, within strict limits, can be achieved. . In this way, the forces on the boom and the other parts can remain limited, so that a relatively light and simple design of the boom and suspension thereof will suffice.
    In the context of the invention, "horizontal" and "vertical" is always understood to mean "in a position of use at least substantially horizontally, or at least substantially parallel to the field" or "in a position of use at least substantially vertically, or at least substantially : perpendicular to : the field'.
    Short: description of the drawings
    The invention is explained below with reference to non-limitative exemplary embodiments.
    Show in the drawings:
    Figure 1 shows the spreading of a spraying agent in a non-straight working path by means of a field sprayer according to the prior art;
    Figure 2 shows the distribution of a spraying agent in a non-straight operation by means of a field sprayer according to the invention:
    Figure 3 shows a top plan view of the field sprayer according to the invention with outer boom parts in a neutral horizontal pivot position and a top view of the field sprayer according to the invention with the outer spray boom parts rotated relative to the neutral horizontal pivot position; and figure 4 shows a partial top view of the field sprayer according to the invention with the outer boom parts turned with respect to the neutral horizontal turning position.
    U i t implementation examples
    The device (I) according to the invention shown in the drawings comprises a vehicle (3) and a sports device mounted on the vehicle (3). The vehicle (3) is pulled here by a tractor (not shown). In other embodiments, the vehicle can also be self-driving. The spraying device comprises a spray boom (4) provided with spray nozzles (5). The boom (4) here comprises two outer parts (6,6 ') which can each rotate in a horizontal plane about a vertical axis of rotation (8.8 j relative to the vehicle (3) through relatively large angles (α, α *) of each here 60 °, and an inner part (7) with a fixed horizontal pivot position relative to the vehicle (3) In a more simple embodiment, the spray boom can also consist of a single part that can rotate about a single vertical pivot axis. .
    The device (1) here also comprises first means (9) for rotating the two outer parts (6, 6 ') of the boom (4) in the. horizontal plane about the vertical axes of rotation (8,8 ") in relation to the vehicle (3). The device (1) here also comprises second means (not shown) for determining the horizontal turning positions of the two outer parts (6, 6 ') of the boom (4) (and with respect to the vehicle (3), and also third means for determining the horizontal turning positions of the two outer parts (6, 6) of the boom (4) with respect to the field (2).
    the
    Figure 1 shows a. method for spreading a spraying agent in a non-straight working path by means of a field sprayer according to the prior art. Bible. When taking turns, the horizontal turning position of the entire boom relative to the vehicle always remains at least substantially constant, and at least practically equal to a neutr. perpendicular to the main axis of the vehicle. Due to the considerable differences in speed of the nozzles occurring. the spraying agent is in no way evenly distributed here. Relatively large forces are also exerted on the spray boom and the other parts of the field sprayer when taking the bends, due to the bulkiness of the spray boom.
    Figure 2 shows a method for spreading a spraying agent in a non-straight process (10) according to the invention. When taking the turns, the two outer parts (0.6 ') of the boom (4) rotate in the horizontal plane about the vertical axes of rotation (8,8'1 relative to the vehicle (31) such that the horizontal rotational positions of the two outer parts (6.6 ') of the spray boom (4) remain substantially constant with respect to the field (2), so that at least practically no mutual differences in speed of the spray nozzle cue (51) occur, and here the spraying agent becomes at least substantially uniform Scattered.
    In order to keep the horizontal rotational positions of the two outer parts (6, 6 ') of the boom (41 relative to the field (2j) at least practically constant, according to the invention use is just made of the mass inertia of the outer parts ( 6,6'i of the boom (4) .This mass poweriness precisely works with this to keep the dmat positions of the two outer parts (6,6j relative to the field (2) constant. a bend, if the outer parts (6,6'1 can turn without friction with respect to the vehicle (4) and there is no approach to a final limit, in principle no horizontal forces on the boom (4) and the other parts of the device (I).
    To correct small deviations of the desired horizontal rotation countries from the field (21 ie, the first means (9) can be used for ..
    cautiously, turning the two outer: parts (6,6 ") to those desired horizontal pivot positions relative to the field (2), requiring only minor forces. occur on the boom (4) and the other parts. Use can then be made of the third means for determining: of those: small deviations of the horizontal rotational positions of the two outer parts (6,6 ") with respect to the field (2).
    If the scenarios grow large and there is a risk of running into the final limits, use can be made of the first means (9) for turning the two outer parts (6, 6 ') back to more right angle again. pivot positions. with respect to the vehicle (3), wherein again only small forces on the boom (4) and the other parts of the device (1). performance. Use can herein be made of the second means for determining the horizontal pivotal positions of the two outer parts (6,6 ") with respect to the original vehicle (3).
    During straight working passes, the horizontal rotational positions of the two outer parts (6,6 ') relative to the vehicle (3) can always remain at least substantially constant, and generally at least substantially equal to neutral, right-angled positions with respect to the main axis. (1.1.) Of the vehicle (3), see left part of figure 3. In a bend with the two outer parts (6,6 ') in the extreme turning positions, see right part of figure 3 and figure 4, the working width of the device (1) is only a few percent off the working width with the two outer parts (6,6 '): in the neutral, right-angled rotational positions.
    After taking a bend, and again on a straight part of a working pass. the two outer parts (6,6 ') can be moved slowly back to the neutral, angular rotational positions by means of the first means (9), such that the relative speed changes of the spray nozzles (5) remain relatively small and within given limits.
    When a (partially) folded boom (4) is hit against an obstacle, the outermost part (6.6 ') of the boom (4) can turn around the vertical axis of rotation (8.8') causing damage can be prevented or at least reduced. Thus, the vertical turnstile (8.8 ") located close to the vehicle (3) forms an additional obstacle protection.
    During turning and maneuvering, before work can begin, in the corners of the field, and while turning on the headlands. the two outer parts (6, 6 ') of the boom (4) can be rotated by means of the first means (9) relative to the vehicle (3) through the relatively large angles (α, α') of 60 ° each. That is possible. much faster maneuvering in comparison with known field sprayers with a relatively small maximum horizontal scenario of the spray boom. Thus, for example, an angle of a field with an inside angle of less than 90 9 can be sprayed more evenly with less overdose and / or underdosing.
    it)
    权利要求:
    Claims (8)
    [1]
    Conclusions
    Device: (1) for spreading a liquid over a field (2), comprising a vehicle (3) and a spraying device mounted on the vehicle, comprising a
    Boom (4) provided with spray nozzles (5), characterized in that at least a portion (6,6 ') of the boom can rotate in a horizontal plane about a vertical pivot axis (8,8') relative to the vehicle over a relatively large angle (ogtr) of at least 30 °.
    [2]
    Device as claimed in claim 1, characterized in that the at least one part
    10 (6,6 ’) of the boom over the relatively large angle (a, a'j can rotate at least substantially without friction.
    [3]
    Device as claimed in claim 1 or 2, characterized in that the device also comprises first means (9) for rotating the at least one portion (6,6 ') of the spindle through the relatively large angle (ogcr). relative to the vehicle (3),
    15
    [4]
    Device as claimed in any of the claims 1-3, characterized in that the device also comprises second means for determining. the horizontal turning position of the ten. at least one portion (6.6 ") of the boom relative to the vehicle (3).
    Device as claimed in any of the claims 1-4, characterized in that the device also comprises third means for determining the horizontal rotational position of the
    20 at least one part (6,6 ") of the branch tree relative to the field (2).
    6. Method: for spreading a liquid over a field (2), meanwhile a device (1) comprising a vehicle (3) and a spraying device mounted on the vehicle comprising a spray boom (4) provided with nozzle tips (5) .
    Wherein at least a portion (6,6 ') of the boom can rotate in a horizontal plane about a vertical axis of rotation (8,8') relative to the vehicle through a relatively large angle (cga ') of at least 30 °. characterized in that during an operation (1.0) at least one portion (6.6 ') of the boom: rotates relative to the vehicle (3) within the relatively large angle (α, α') such that the horizontal turning position
    30 of the at least one portion (6,6 ") of the boom with respect to the field (2) remains substantially constant.
    π
    Method according to claim 6, characterized in that the at least one part (0.6 ') of the boom with respect to the vehicle (3) rotates within the relatively large angle: (θςα') rotates under the influence of the mass inertia of the at least one portion (6,6 ') of the boom.
    [5]
    8. Method according to claim 6 or 7, characterized in that the at least one part (6.6 ') of the boom is rotated relative to the vehicle (3) within the relatively large angle (α, α') by means of provided first means (9).
    [6]
    9. Method as claimed in any of the claims 6-8, characterized in that the method also comprises of determining the method by means of second means provided for this purpose
    [7]
    10 horizontal turning position of the at least one part (6,6 ") of the boom relative to the vehicle (3).
    10. Method as claimed in any of the claims 6-9, characterized in that the method also comprises determining, by means of third means provided for this purpose, the horizontal: pivotal position of the at least one part: (6,6 ') of the boom at
    15 relative to the field (2),
    [8]
    A method according to any one of claims 6-10, characterized in that the method also comprises rotating the at least one part (6,6 ') of the boom relative to a relatively large angle (ega') the vehicle (3) to a desired horizontal turning position relative to: of the vehicle (3).
    12. A method according to any one of claims 6-11, characterized in that the method also comprises rotating the at least one part (6,6 ') of the spmthoin within the relatively large angle (α, α') . relative to the vehicle (3) to a desired horizontal turning position relative to the field (2),
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    同族专利:
    公开号 | 公开日
    WO2019151850A1|2019-08-08|
    NL1043136B1|2021-10-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5000385A|1989-08-16|1991-03-19|Clark Equipment Company|Spray boom breakaway apparatus|
    DE10314686B4|2003-03-26|2010-02-18|Vogel & Noot Spray Solutions Gmbh|Field sprayer|
    DE102005019238A1|2005-04-26|2006-11-09|Amazonen-Werke H. Dreyer Gmbh & Co. Kg|Agricultural distributor|
    NL1035118C2|2008-03-04|2008-08-26|Peter Lerink|Spraying machine for spraying pesticides and herbicides on horticultural field, has spray boom comprising two distinct sections having nozzles, where distance between nozzles is continuously varied using hydraulic cylinders|
    PL2186405T3|2008-11-12|2017-08-31|Horsch Leeb Application Systems Gmbh|Spray bar and method for controlling it|
    EP2837285B1|2013-08-09|2021-07-07|Lemken GmbH & Co. KG|Spray-boom of an agricultural field sprayer|
    DE102013221468A1|2013-10-23|2015-04-23|Horsch Leeb Application Systems Gmbh|Motorically foldable spray boom and method for motorized folding and unfolding of such spray boom|
    DE102015113721A1|2015-08-19|2017-02-23|Amazonen-Werke H. Dreyer Gmbh & Co. Kg|Suspension for an agricultural machine, agricultural machine with such a suspension and method of operating an agricultural machine|
    EP3141114B1|2015-09-08|2018-08-15|Herbert Dammann GmbH|Agricultural sprayer and method|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    NL1042742|2018-02-05|
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