• 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:
    The invention describes a device (1) comprising: a structure (2) towed by a vehicle (100); an injector (3) coupled to said structure (2); a pushing means (4) connected to the injector (3) to drive it into the ground; and a drive means (5) connected to the injector (3) for ejecting fertilizer through said injector (3), where the injector (3) is coupled to said structure (2) through a medium (6a, 6b) of sliding coupling between front and rear positions, the injector (3) being connected to a return means (7) that drives said injector (2) toward said forward position, so that the structure (2) advances while the injector ( 3) performs operations of: nailing the injector (3); sliding of the injector (3) from front to rear position; and return of the injector (3) to the forward position. The invention may further include a shock absorbing rocker system. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2616138A1
    申请号:ES201631410
    申请日:2016-11-04
    公开日:2017-06-09
    发明作者:Elías LÓPEZ ALBA；Francisco Alberto DÍAZ GARRIDO；Luis FELIPE SESÉ；Juan Carlos ROMERO LÓPEZ；Juan Antonio ALMAZÁN LÁZARO
    申请人:Universidad de Jaen；
    IPC主号:
    专利说明:

    Device for injecting fertilizer in the field continuously.
    5 OBJECT OF THE INVENTION
    The present invention belongs in general to the field of agriculture, and more particularly to the devices used for the distribution or distribution of fertilizer.
    The object of the present invention is a new device that allows the injection of fertilizer in the ground in a continuous manner, that is, without the need for a driving vehicle that pulls the device to stop running.
    BACKGROUND OF THE INVENTION
    15 Currently, a large number of crops require the performance of fertilizer tasks, that is, the distribution by land where the cultivation of one or more fertilizer substances is capable of promoting the growth of the plant or tree being cultivated. Most of the machines used to perform this work are designed
    20 to distribute the fertilizer in a superficial way, that is, by throwing, spreading or spraying the fertilizer on the surface of the land.
    This form of subscriber has several drawbacks. A major drawback is the dependence of the weather, since it is necessary that precipitation occurs for
    25 that the fertilizer distributed over the land surface be introduced into the soil. In addition, a waste of fertilizer frequently occurs because it is distributed over a wider land area than the plant can take advantage of, which results in a higher fertilizer expense, in addition to runoff losses on the ground.
    30 To solve these problems, some devices specially designed to inject the fertilizer directly into the ground have been developed. These machines are based on the use of injectors designed to be nailed to the ground at a certain depth, so that the fertilizer injection, which in this case is
    35 normally in a liquid state, it is carried out directly under the surface of the ground, and therefore closer to the roots of the plant. The dependence of the 2 is thus avoided


    rainfall for the introduction into the soil of the fertilizer, and also the amount of wasted fertilizer is minimized. Not only does this reduce the cost of fertilizer, but it also has the additional advantage that the amount of fertilizer that arrives at the plant is known more precisely, allowing it to better control its growth.
    Document US 5,802,996 describes a device of this type comprising feeding tubes that are injected into the ground from a hydraulic cylinder with spring return, and where the liquid fertilizer is driven by means of a compressor. Fig. 1 shows a representative figure of this device.
    US 5,115,750 shows another machine of this type designed for the injection of fertilizer in the field that has several injectors located at the rear of the motor vehicle and driven by independent injection cylinders. Fig. 2 shows a representative figure of this device.
    As mentioned, these devices solve the previous problems related to fertilizer waste and weather dependence. However, the mode of operation of these types of devices requires the introduction of injectors in the field for fertilizer distribution, so it is necessary that the device is stopped. As a consequence, the subscriber process, which with the previous devices was carried out continuously, now happens to be carried out discontinuously: the motor vehicle advances a certain distance, stops for a few seconds for fertilizer injection, advances again, stops again for another fertilizer injection operation, and so on. This poses a new problem related to the loss of time that the subscriber process is discontinuous.
    DESCRIPTION OF THE INVENTION
    The present invention solves the above problems thanks to a new device that combines the advantages of the two types of machines described in the previous section. It is a device that performs the distribution of fertilizer by injection in the field, and which is also configured to carry out this process continuously. More specifically, the main concept of the invention is that the injectors can slide along guides that are fixed to the motor vehicle, thus allowing it to advance continuously while the injectors perform successive fertilizer injection operations in the field. . Thanks to this mode of operation, the device


    it maintains the advantages inherent in the devices based on the fertilizer injection, specifically a better control of the amount of fertilizer and place in which it is deposited, and at the same time it maintains the advantages of the continuous type devices, which minimize the necessary time for the subscriber process.
    The invention is defined by claim 1, whose preamble corresponds to the features described in the prior art document US 5,115,750 described above and shown in Fig. 2. The dependent claims define especially preferred embodiments of the invention.
    The invention describes a device for the injection of fertilizer in the field, comprising:
    a) Bearing structure
    It is a supporting structure configured to be towed by a motor vehicle. This structure is designed for coupling to a motor vehicle, such as a tractor, truck, or in general any vehicle capable of moving the supporting structure through the land to be paid. The bearing structure may be configured to engage said motor vehicle in any known manner. For example, the driving structure can be constituted by the own box or trailer of the motor vehicle, or it can be an element configured to be coupled to said vehicle, box or trailer. The term “towing” should be interpreted in this document in a broad manner, so that it covers any way in which the structure can be moved or transported by the motor vehicle.
    The supporting structure has a rigidity sufficient to carry the rest of the elements that make up the device of the invention and possibly also a fertilizer tank. For example, as will be seen later in this document, it can be a structure formed by metal bars interconnected with each other as a lattice and suspended from a tractor.
    More specifically, in a preferred embodiment of the invention, the supporting structure comprises a central portion configured to support a fertilizer reservoir and at least one lateral portion to which the means of connection are connected.


    Sliding coupling that will be described later in this document.
    b) Injector
    The device comprises at least one injector coupled to said supporting structure. The injector is configured to drive into the ground thanks to the force exerted on it by a pushing means that will be described later, for which it has a sharp point. That is, the injector moves between a retracted, retracted or resting position in which its tip is separated from the ground surface by a certain distance that can vary according to the accident of said surface, and an extended, deployed or injection position in which its tip is driven in the terrain a certain distance that depends on the needs of each particular application. For example, in the case of the application of fertilizer in olive groves, the distance preferably ranges from about 15 cm to 25 cm, more preferably about 20 cm. The return of the injector from the extended position to the retracted position can be carried out in different ways, such as by means of passive type elements such as springs or the like, or by active elements such as the push means itself responsible for passing it from the position. retracted to the deployed position.
    A duct travels the injector from its rear end to its tip to allow the expulsion of fertilizer in a liquid state through its tip once it has been driven into the ground. The number of injectors may vary depending on each particular application, although this document describes a particular embodiment where three injectors are specifically used.
    c) Injector thrust means
    The pushing means is connected to the injector and configured to drive said injector into the ground by passing it from its retracted position to its extended position. That is, the pushing means is responsible for applying a force directed along the axis of the injector in the direction of the ground to drive said injector into the ground. Additionally, depending on the particular design, the pushing means itself can also be responsible for retracting the injector back to its stowed or resting position.


    The pushing means can be configured in different ways, such as by means of a spring mechanism controlled by a magnetic locking means, by a crank-crank mechanism, by a mechanism based on cams or sprockets, or others. However, according to an especially preferred embodiment of the invention, the thrust means is of the hydraulic type and is configured for connection to an external hydraulic system. In this context, it is interpreted that an "external hydraulic system" is a hydraulic system that is not part of the device of the invention. The use of a hydraulic thrust means has the advantage that it makes it possible to take advantage of the hydraulic systems frequently available to various types of motor vehicles, such as tractors and the like. Therefore, preferably the external hydraulic system to which the thrust means is connected is a hydraulic system present in the motor vehicle itself.
    More specifically, according to a preferred embodiment of the invention, the thrust means comprises a hydraulic cylinder configured to drive the at least one injector. This single hydraulic cylinder can be mechanically arranged to move, for example through a slider, an element such as a bar or similar to which, in turn, the injectors in question are fixed. The number of injectors, as mentioned above, can be variable, although three injectors are preferably used here.
    d) Fertilizer drive medium
    The fertilizer drive means is connected to at least one injector, and is configured to cause expulsion of the fertilizer through said at least one injector. For example, the drive means may be configured to drive at least one plunger that drives the liquid fertilizer such that it causes its exit through the tip of each injector.
    Although the drive means can be configured in different ways, in a particular embodiment of the present invention a drive type of hydraulic type configured for connection to an external hydraulic system is used. As previously mentioned with reference to the thrust means, the use of a hydraulic type drive means has the advantage that it allows to take advantage of


    the hydraulic systems that frequently have various types of motor vehicles, such as tractors and the like. Therefore, preferably the external hydraulic system to which the drive means is connected is a hydraulic system present in the motor vehicle itself.
    More specifically, according to a preferred embodiment of the invention, the drive means comprises a main hydraulic cylinder configured to drive at least one respective secondary hydraulic cylinder connected to at least one injector. That is, the single hydraulic cylinder can be hydraulically
    10 connected, through a common duct that forks or through several independent ducts, to several secondary hydraulic cylinders each of which is connected to a respective injector. Since, as mentioned above, the number of injectors is preferably three, in a preferred embodiment of the invention the device comprises three cylinders
    15 secondary hydraulics connected to about three respective injectors. This has the advantage that it allows the application of several different products and in different concentrations simultaneously.
    The elements described so far would allow the injection of fertilizer into the soil of
    20 discontinuously, in a manner similar to the prior art document mentioned above. The motor vehicle would have to stop during each fertilizer injection operation consisting of the injectors in the ground driving them from their stowed back position to their extended position, the fertilizer drive to cause their expulsion through its tip, and the retraction of
    25 injectors back to their stowed rest position.
    However, in the device of the present invention, in order to allow the fertilizer to be injected continuously, the injector is coupled to the supporting structure through a sliding coupling means between a front position and a rear position 30 according to the direction of motor vehicle movement. This sliding coupling means can be implemented in different ways, although according to an especially preferred embodiment of the invention it comprises at least one horizontal rail fixed to the supporting structure on which a guide to which the injector is fixed slides. This rail can be arranged in several positions on the supporting structure, although it is preferably located on a lateral surface of the structure. In this document, the “lateral surface” should be interpreted taking as a reference the direction of


    displacement of the motor vehicle. That is, this term refers to the vertical planes located on the right and left sides of the supporting structure according to the direction of travel.
    Furthermore, in a particularly preferred embodiment of the invention, the device comprises two parallel rails located on the respective opposite side surfaces of the supporting structure, and where the distance between said rails is adjustable. This allows not only to fertilize trees located on both sides of the motor vehicle or supporting structure, but also to adjust the distance between the rails, and therefore also the distance between the fertilizer injection points, depending on the distance between trees located in rows adjoining The device is thus endowed with great versatility when it comes to the process of subscribing different types of trees or crops.
    In short, the guide, and therefore the at least one injector, can move from the front position to the rear position during the fertilizer injection process during which the injector is driven into the ground, allowing the supporting structure to continue moving forward. Once the fertilizer injection is finished, the injector returns to its stowed or resting position and the guide must return to its forward position.
    For this, in the device of the invention the injector is also connected to a return means configured to drive said injector towards said forward position when it is in the stowed position. This return means can be configured in different ways, including mechanical means, hydraulic means, electrically or electronically controlled means, etc. However, in a particularly preferred embodiment of the invention, the return means comprises an elastic element having a first end fixed to the structure and a second end fixed to the injector, such that when the injector moves away from the forward position the return means generates a force that pulls said injector in the direction of said forward position. In this context, the term "fixed to the injector" encompasses both a fixation directly to the injector itself and an indirect fixation, for example to the sliding guide to which, in turn, the injector is fixed. In any case, the elastic element does not exert substantially any force on the injector when it is in the forward position, but as it moves towards the rear position the elastic element is stretched and a force appears that tends to displace said injector. from the back position to the front. Thus, when the injector is removed from the ground once a fertilizer injection is finished and


    it returns to its retracted position, being at this moment in, or near, the rear position, the force of the elastic element pulls it until it is returned to the forward position.
    Therefore, the operation of the device of the invention allows the supporting structure to advance continuously while the injector performs successive operations of: nailing the injector in the field for a fertilizer injection; sliding of the injector from the front position to the rear position for the duration of the fertilizer injection (while the bearing structure continues to advance); and return of the injector to the forward position once removed from the ground after the fertilizer injection operation. This solves the problem of loss of time related to prior art devices, also making the fertilization process more profitable.
    In a further embodiment of the invention, the supporting structure is fixed to the driving vehicle through a tilting support means configured so that said supporting structure can swing within a longitudinal vertical plane. In this way, the structure can swing in case its rear end collides with the ground due to slopes or irregularities. This avoids excessive mechanical stresses.
    or breaks
    The tilting support means can be implemented in different ways, although according to a preferred embodiment of the present invention the tilting support means comprises:
    - At least one tilting upper support element in a longitudinal vertical plane. In this context, the term "longitudinal vertical plane" is a vertical plane oriented according to the longitudinal direction, that is, the direction of movement of the motor vehicle. The upper support element may be formed by a joint, ball joint, hinge, etc. arranged between a piece integral to the supporting structure and a piece integral to the motor vehicle.
    - At least one sliding lower support member along the longitudinal direction. This sliding element can be implemented in different ways, although preferably it comprises a piece integral with the bearing structure slidably connected to a groove formed in a longitudinal rod integral with the motor vehicle. In addition, in an especially preferred embodiment of


    the invention this element further comprises a spring disposed between one end of the longitudinal rod and the piece integral with the supporting structure so that it drives said piece towards its forward position. This spring applies a force tending to bring the support piece to the supporting structure to its initial position of
    5 rest in the groove, understood as the rest position that adoptswhen the structure and the motor vehicle rest on a fieldcompletely flat.
    Thanks to this configuration, when the supporting structure collides with the ground because of its
    At the rear end, the force tending to "lift" said rear end causes the piece integral with the supporting structure to slide backwards, against the force of the spring, along the groove. As the upper support element allows rotation, the result of this collision with the ground is that the supporting structure rotates relative to the motor vehicle about an axis perpendicular to the longitudinal direction. This prevents them from occurring.
    15 significant damage and helps extend the life of the device of the invention.
    BRIEF DESCRIPTION OF THE FIGURES
    Fig. 1 shows an example of a device according to the prior art.
    Fig. 2 shows another example of a device according to the prior art presenting the characteristics of the preamble of the main claim of the present invention.
    Fig. 3 shows a perspective view of the right side of an example of a device according to the invention connected to a tractor and with the injectors in the forward position.
    Fig. 4 shows a profile view of the left side of the example device according to the invention connected to a tractor.
    30 Fig. 5 shows a side view of the device example with the injectors in the rear position and driven into the ground.
    Fig. 6 shows the pushing means and the injectors of the example device according to the invention.


    Fig. 7 shows the drive means of the example device according to the invention.
    Fig. 8 shows a perspective view of the injectors connected to the sliding means of the example device according to the invention.
    5 Fig. 9 shows a right side view of the device of the invention provided with a tilting support means in rest position.
    Fig. 10 shows the device of Fig. 9 with the tilting support means in position 10 rotated as a result of a collision of the supporting structure with the ground.
    Figs. 11a and 11b show in greater detail the tilting support means respectively the rest position and the rotated position.
    15 Figs. 12a-12e show a complete sequence of fertilizer injection using the device according to the invention.
    PREFERRED EMBODIMENT OF THE INVENTION
    An example of the device (1) of the present invention is described below with reference to a series of figures where the different parts that comprise it have been represented.
    Figs. 3 and 4 show perspective views of the device (1) of the invention
    25 connected to a motor vehicle (100), which in this case is a tractor. The device (1) is formed by a supporting structure (2) that has a central portion (2a) located immediately behind the tractor (100) and a lateral portion (2b) located along a portion of the right side of the tractor ( 100) and that extends behind it. The central portion (2a) generally takes several horizontal bars together and
    30 fixed to the tractor (100), and is adapted to support a deposit (200) of fertilizer. The lateral portion (2b) has an elongated lattice shape according to a horizontal direction contained in a vertical plane parallel to the direction of travel of the tractor (100). As is evident, the direction of travel of the tractor (100) coincides with the direction of travel of the device (1) of the invention. The central (2nd) and lateral portions
    35 (2b) of the supporting structure (2) can be interconnected in different ways, such as by welding or by means of screws, rivets or the like. The structure (2) 11


    The bearing is fixed to the tractor (100) also by any known method, such as screwing or similar, provided that it is sufficiently rigid and resistant to withstand the stresses caused by the weight of the elements it supports and those caused by the driving of the injectors (3).
    As can be seen, the supporting structure (2) of this example of device (1) is asymmetrical in the sense that it only has a single lateral portion (2b) located on the right side of the tractor (100). However, as mentioned above, it would be possible to arrange on the left side of the tractor (100) a second lateral portion similar to the described lateral portion (2b). This would allow fertilization on trees located on both sides of the device (1). It would even be possible to configure the bearing structure (2) so that the distance between the lateral portion (2b) of the right side and the hypothetical lateral portion of the left side could be modified, for example through a mechanism based on one or more stems threaded or similar. In this way, the device (1) could adapt to different distances between rows of trees to be fertilized.
    As can be seen in greater detail in Fig. 5, the lateral portion (2b) of the supporting structure (2) has a pair of horizontal parallel rails (6a) in the direction of travel of the tractor (100). On these two rails (6a) a guide (6b) slides to which the assembly formed by means of pushing means (4) and injectors (3) is coupled. The guide (6b) can slide with the help of rolling elements (not shown) of any suitable type to minimize friction during travel along the rails (6a). Thanks to the displacement means (6a, 6b), the injectors (3) can move between a front position and a rear position, where these positions are interpreted taking the direction of travel as a reference. In this figure, the injectors (3) are located in the forward position and are shown nailed to the ground to begin fertilizer injection.
    Fig. 6 shows in greater detail the pushing means (4) that drives the injectors (3) into the ground. As can be seen, it is formed by a hydraulic cylinder (4a) configured to drive a slide (4b) that is connected to a horizontal bar (4c) from which three injectors (3) protrude perpendicularly in the vertical direction. To drive the injectors (3) into the ground, the hydraulic cylinder (4a) is ordered to drive the slide (4b) which, in turn, pushes the injectors (3) vertically downwards towards their deployed position. Once the fertilizer injection in the field is finished, it is given


    order the hydraulic cylinder (4a) to pull the slide (4b), so that the injectors (3) return to their stowed or rest position. The hydraulic cylinder (4a) is connected to the tractor's hydraulic system (100) by means of a first connection conduit (4d).
    Fig. 7 shows in greater detail the drive means (5) that drives the liquid fertilizer for expulsion through the tip of the injectors (3) once driven. Said drive means (5) is formed by a main hydraulic cylinder (5a) connected to the tractor's hydraulic system (100) by means of a second duct (5c). Three hydraulic cylinders (5b), previously loaded, will contain the fertilizer inside. Fertilizer loading of the secondary cylinders (5b) is carried out through third conduits (5d) that connect said secondary cylinders (5b) with the fertilizer reservoir (200). Once the desired amount has been introduced into each secondary cylinder (5b), the main hydraulic cylinder (5a) will cause compression of the three secondary hydraulic cylinders (5b) to drive the fertilizer through a fourth conduit (8) to the respective injectors (3) already driven into the ground. This allows a perfectly dosed amount of fertilizer to be applied through each injector (3), thereby increasing the accuracy of the subscriber process.
    Fig. 8 shows a perspective view of the sliding guide (6b) along the rails (6a) and how this guide (6b) is connected to a return means (7) which in this example is implemented through of elastic bands guided by pulleys. Thus, once the fertilizer injection is finished, when the injectors (3) that are in, or near, the rear position, return to their resting position, the force of the return means (7) causes the guide (6b) ), and with it the injectors (3), return to the forward position and are therefore ready to carry out another operation of driving and fertilization.
    Fig. 9 shows a right side view of the device (1) of the invention resting on a completely flat ground. It can be seen how both the longitudinal axis of the device (ELD) and the longitudinal axis of the tractor (ELT) are horizontal and parallel. The tilting support means (10) is therefore in its resting position. However, when the device (1) of the invention passes through a rugged or irregular terrain, its rear end may collide with the ground, which can cause significant damage. To avoid this, the tilting support means (10) allows the device (1) to rotate a small angle in relation to the tractor (100), so that possible shocks are cushioned and the life of the device (1) is lengthened. The


    Fig. 10 shows how the longitudinal axis of the tractor (ELT) is no longer parallel to the longitudinal axis of the device (ELD), but forms an angle.
    Figs. 11a and 11b show in greater detail the means (10) of tilting support. It can be seen how it is basically formed by two support elements respectively upper and lower (11, 12). In this specific example, and although it is not appreciated because it is a profile view, there are two upper support elements (11) and two lower support elements (12). Each upper support point (11) is simply formed by an articulated device of the patella type, articulation, hinge, etc. that joins a piece integral with the supporting structure (2) and a piece integral with the tractor (100). On the other hand, each lower support point (12) essentially comprises a part (12a) integral to the supporting structure (2) which is slidably fixed to a rod (12c) integral to the tractor (100). This rod (12c) is arranged according to an essentially longitudinal direction, whereby the piece (12a) can move a certain distance forward or backward in longitudinal direction along said rod (12c). More specifically, this sliding fastener is implemented by arranging a portion of the part (12a) inside a longitudinal groove (12) of the rod (12c). Thanks to this configuration, when the rear end of the supporting structure (2) collides with the ground, there is a torque (PG) that causes the supporting structure (2) to rotate clockwise. according to the figure. As a consequence, in the upper support element (11) there is a rotation of the integral part to the supporting structure (2) in relation to the integral part to the tractor (100), while in the lower support element
    (12) there is a sliding (D) of the piece (12a) integral to the supporting structure (2) in relation to the rod (12c). Therefore, it moves from the initial rest position (Figs. 9 and 11a) to a rotated position (Figs. 10 and 11b) that allows to avoid significant damage to the device (1) of the invention. Once the obstacle is overcome, the force of gravity itself will tend to return the supporting structure (2), and therefore also the tilting support means (10), to its resting position.
    The figures also show how the lower support point (12) further comprises a spring (13) having one end resting on the end of the rod (12c) and the other end resting on the part (12a) integral with the structure. bearing (2). This spring (13) exerts no force when the tilting support means (10) is in the rest position shown in Fig. 11a. However, when there is a rotation of the supporting structure (2) as a result of the presence of an obstacle and the piece (12a) integral with said supporting structure (2) slides backwards according to (D) along the groove


    (12b) of the stem (12c), the spring (13) is compressed. As a consequence, it exerts a force
    (F) on the piece (12a) integral with the supporting structure (2) tending to return it to its forward position. That is, the spring (13) drives the tilting support means (10) towards its rest position.
    Figs. 12a-12e show in a simplified manner a complete sequence of fertilizer injection in the field using the device (1) according to the present invention. Fig. 12a shows the device (1) of the invention in an initial state where the injectors (3) are in the forward position (the position corresponding to the right end of the lateral portion (2b) of the supporting structure according to this drawing) and in its stowed or resting position (the highest position of its travel distance). In this example, the distance between the ground surface and the tip of the injectors (3) is about 10 cm. The device (1) as a whole is being towed or transported by a motor vehicle
    (100) to the right according to the figure (motor vehicle (100) not shown in these figures). In Fig. 12b the order of action of the pushing means (5) has been given, which causes the injectors (3) to move from their retracted position to their extended position (the lowest position of their travel distance), and therefore that they have stuck in the ground. In this example, the stroke of the thrust means (5), the length of the injectors (3), and the distance between the tip of the injectors (3) and the ground when they are in their resting position, are calculated to that the tip is inserted into the ground an approximate distance of 20 cm. Fig. 12c shows how, while the bearing structure (2) continues to move, the injectors (3) remain nailed in the same place thanks to their ability to slide along the rails (6a) of said bearing structure (2) . During this period the drive means (5) causes the flow of fertilizer from the tank (200) to the tip of the injectors (3). The fertilization process continues until all the desired fertilizer has been introduced into the soil. In this example, as shown in Fig. 12d, that moment coincides with the moment when the injectors (3), due to the movement of the device (1) as a whole to the right, have slid along the rails (6a) of the supporting structure (2) until reaching the rear position (the position corresponding to the left end of the lateral portion (2b) of the supporting structure according to this drawing). As can be seen in Fig. 12e, then the pushing means (4) acts again to cause the injectors (3) to retract, leaving the ground to return to their stowed or resting position. Once in the rest position, the force of the return means (7) causes the sliding guide (6a), and with it the injectors (3), move along the rails (6a) until returning to the forward position, the device (1) being ready to start the


    process. Throughout this process, the motor vehicle (100) has moved the device (1) continuously, without the need for stops.

    权利要求:
    Claims (16)
    [1]
    1. Device (1) for injecting fertilizer in the field continuously, comprising: 5-a supporting structure (2) configured to be towed by a vehicle (100)
    motor; - at least one injector (3) coupled to said supporting structure (2), - a pushing means (4) connected to the injector (3), said pushing means (4) being configured to drive said injector (3) into the ground by passing it from a
    10 position retracted to an extended position; and -a fertilizer drive means (5) connected to the injector (3), said drive means (5) being configured to cause the expulsion of the fertilizer through said injector (3) once the injector (3) is nailed in the terrain, characterized by
    15 - the injector (3) is coupled to said supporting structure (2) through a sliding coupling means (6a, 6b) between a front position and a rear position according to the direction of movement of the driving vehicle (100), and - the injector (3) is connected to a return means (7) configured to drive said injector (2) towards said forward position when it is in its retracted position,
    20 -so that the supporting structure (2) can advance continuously while the injector (3) performs successive operations of: nailing the injector (3) on the ground for a fertilizer injection; sliding the injector (3) from the front position to the rear position for the duration of the fertilizer injection; and return of the injector (3) to the forward position once removed from the ground after operation
    25 fertilizer injection.
    [2]
    2. Device (1) according to claim 1, wherein the sliding coupling means (6a, 6b) comprises at least one horizontal rail (6a) fixed to the supporting structure (2) on which a guide (6b) slides to which the injector (3) is fixed.
    [3]
    3. Device (1) according to claim 2, wherein the at least one rail (6a) is located on a lateral surface of the supporting structure (2).
    [4]
    Device (1) according to claim 3, comprising two parallel rails (6a) 35 located on the respective opposite side surfaces of the structure (2)
    bearing, and where the distance between said rails (6a) is adjustable.17

    [5]
    5. Device (1) according to any of the preceding claims, wherein the return means (7) comprises an elastic element having a first end fixed to the supporting structure (2) and a second end fixed to the injector (3) , so that when
    5 the injector (3) moves away from the front position the return means (7) generates a force that pulls said injector (3) in the direction of said front position.
    [6]
    6. Device (1) according to any of the preceding claims, wherein the
    Push means (4) is of the hydraulic type and is configured for connection to an external hydraulic system 10.
    [7]
    7. Device (1) according to claim 6, wherein the thrust means (4) comprises a hydraulic cylinder (4a) configured to drive the at least one injector (1).
    A device (1) according to claim 7, wherein the hydraulic cylinder (4a) is configured to drive three injectors (3).
    [9]
    9. Device (1) according to any of the preceding claims, wherein the
    Drive means (5) is hydraulic and is configured for connection to an external hydraulic system.
    [10]
    10. Device (1) according to claim 9, wherein the drive means (5) comprises a main hydraulic cylinder (5a) configured to drive at least one respective secondary hydraulic cylinder (5b) connected to at least one injector.
    [11]
    11. Device (1) according to claim 10, comprising three secondary hydraulic cylinders (5b) connected to the respective three injectors (3).
    [12]
    12. Device (1) according to any of claims 6-11, wherein the external hydraulic system is the hydraulic system of the motor vehicle.
    [13]
    13. Device (1) according to any of the preceding claims, wherein the supporting structure (2) comprises a central portion (2a) configured to support a fertilizer reservoir (200) and at least one lateral portion (2b) to the which is connected on
    35 (6a, 6b) sliding coupling means.

    [14]
    14. Device (1) according to any of the preceding claims, wherein the supporting structure (2) is fixed to the driving vehicle (100) through a tilting support means (10) configured so that said supporting structure (2) ) can swing inside a longitudinal vertical plane.
    [15]
    15. Device (1) according to claim 14, wherein the support means (10)
    swingarm comprises: - at least one upper support element (11) articulated in a longitudinal vertical plane; Y
    10-at least one sliding lower support element (12) along a longitudinal direction.
    [16]
    16. Device (1) according to claim 15, wherein the lower support element (12) comprises a piece (12a) integral with the supporting structure (2) connected of
    15 sliding way to a groove (12b) made in a longitudinal rod (12c) integral with the motor vehicle (100).
    [17]
    17. Device (1) according to claim 16, further comprising a spring (13) disposed between an end of the longitudinal rod (12c) and the part (12a)
    20 attached to the supporting structure (2) so that it drives said part (12a) towards its forward position.

    FIGURES



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    同族专利:
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    ES2616138B2|2018-01-03|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE4002172C1|1990-01-25|1991-08-14|Fritz 8000 Muenchen De Marschall|Agricultural implement for preparing soil - has self propelled vehicle with platform which has movable working arm|
    JPH0654612A|1991-06-25|1994-03-01|Mitsubishi Agricult Mach Co Ltd|Spot fertilizing machine|
    JPH10191737A|1997-01-07|1998-07-28|Yoshio Sugawara|Continuously traveling injection device for injecting liquid fertilizer and air, and control mehtod therefor|
    WO2002074058A1|2001-03-15|2002-09-26|Lange's Industriservice Aps|Chassis with ground spikes for decompacting soil and controlling method therefor|
    CN201207844Y|2008-07-03|2009-03-18|赵英斌|Injection type irrigation machine|
    CN101467512A|2008-07-03|2009-07-01|赵英斌|Injection type irrigation machine|
    法律状态:
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