• 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 device has a rotary mounted wheel for processing the device on the ground. One or multiple injection elements (1) are attached to the circumference of the device for inserting the liquid substances in the soil. The injection elements are flat. The injection elements have an insert element (4) for feeding the liquid substances. The insert element is made from corrosion and acid-resistant material, particularly from stainless steel, aluminum, aluminum alloy, plastic or rubber. A pressing device has a spring for pressing arranged in a shaft.
    公开号:NL2009107A
    申请号:NL2009107
    申请日:2012-07-03
    公开日:2013-01-21
    发明作者:Klemens Brueker
    申请人:Kwd Cnc Zerspanungs Und Bearbeitungstechnik Gmbh；
    IPC主号:
    专利说明:

    Title: A device for inserting liquid substances into the ground
    The invention relates to devices for inserting liquid substances into the ground, in particular fertilizers and/or plant protection products.
    With agricultural cultivation for the production of economic plants, use is made of fertilizers or plant protection products, for example nutrient supplements. The fertilizers generally contain substances like nitrogen, phosphor, potassium and sulphur and can therefore lead to strong environmental damage if used extensively. In the state of the art, injection devices for liquid substances are known that aims to make it easy to use an exact dosage of fertilizer and/or plant production products.
    Such a device is already known from EP 1 086 617 A1 and consists hence of a plurality of spoke shaped arranged pipes. The tips of the spike shaped pipes extend outward from a corresponding wheel and enter consecutively into an earth soil when rolling to dispense fertilizer in a dosed way. The supply with fertilizer occurs via a supply line, which is arranged outside an axel of the wheel.
    An object of the invention is to provide an improved device for inserting liquid substances into the ground.
    The object of the invention is reached by means of a device with features of the independent claims. Preferred embodiments arise from the dependent claims.
    To reach the goal of the invention, a device is provided for inserting liquid substances, preferably fertilizers and/or plant protection products, into an earth soil with a rotably supported wheel, around which wheel circumference one or a multiple number of injection elements extend outwards for inserting of liquid substances. Because the wheel is rotably supported, the device can be driven on the ground, thus can be moved. Moreover, the injection elements are shaped flat.
    A flat arrangement of the injection elements can lead to a reduction of resistance during intervention and penetration of the injection element into the earth soil. The following advantages are therewith related. The flat profile of the injection element can act like a blade and improves in this way the simple penetration of the injection element, in particular also in solid ground. Wear because of penetration into the earth soil, which occurs in particular at the outer end, namely the distal end of the injection element, results in this case that the area with increased wear is polished further, whereby the resistance further reduces. A corresponding processing of the distal end is therefore not necessarily needed. The reduction of resistance forces for the penetration of the injection elements into the earth soil results in the same way to a reduction of the loads of an attachment of the device onto a carrier, such as for example a vehicle for moving this device.
    The injection elements are preferably arranged such that the flat plane of the injection elements is oriented perpendicular to the axis of the wheel. Such a construction leads initially to the fact that contact of the injection elements with the earth soil results substantially along a straight line. When moving the device and therewith rolling of the wheel on the earth soil, a linear intervention region is created between the respective injection elements and the earth soil. This will ensure that the resistance during interventions and penetration of the injection elements into the earth soil is lower and as a result wear as well as mechanical loads are lower.
    In an embodiment of the invention a flat plane of the injection elements is arranged parallel to the ground plane of the wheel. This can increase the strength of the injection elements and therefore the stability against buckling and bending. Therefore, the injection elements can be designed particularly flat to be able to particularly easily penetrate the earth soil. In comparison to cylindrical injection elements known from the state of the art, which have to have a relatively great minimum thickness of typically at least 16 mm, to bear up against the demands of rolling, it is possible to choose a relatively small thickness of the flat injection elements, without compromising the stability.
    During use, the device for inserting liquid substances into the earth soil is mounted on a carrier, for example a vehicle such as a hauler, and is driven over the earth soil surface to be worked on. The injection elements disposed around the circumference of the wheel penetrate successively into the earth soil during moving of the device. The injection elements are supplied with liquid substances and dispense these liquid substances for example via exit openings into the earth soil. Preferably, dispensing of the liquid substances results only at the injection element which is just or is just going to be inserted into the earth soil, such as to make a selective dispensing possible.
    In an embodiment of the invention the thickness, i.e. the thickness of each injection element, is not greater than 15 mm, preferably not greater than 12 mm, more preferably not greater than 10 mm. In this embodiment it is ensured that the injection element penetrates the earth soil easier compared to injection elements with a round cross section and usual diameter. To ensure the needed mechanical stability even with the mentioned thicknesses, the thickness respectively the strength of the injection element is at least 4 mm, preferably at least 6 mm, more in particularly preferable at least 8 mm.
    Alternatively or additionally the width of each injection element is not greater than 80 mm, preferably not greater than 60 mm. The width of each injection element is in one embodiment at least 20 mm, preferably at least 30 mm. The height of an injection element extending substantially from the attachment at the circumference of the wheel in the direction of the distal end of an injection element is preferably not greater than 150 mm. Such a profile of the injection elements combines in an advantageous way the properties for sufficient stability of the injection elements against buckling and bending with little resistant forces for penetrating into the earth soil. With the mentioned advantageous heights it can be further ensured that a fertilizer reaches the desired depth into the earth soil. For the fertilizer to reach a desired minimum depth, the height is advantageously at least 60 mm, preferably at least 80 mm or at least 100 mm, in particularly preferably at least 120 mm.
    In a further embodiment of the invention the injection elements each have an insert element for supplying liquid substances. The insert element is preferably received in a hole and/or a slit in the injection element, namely preferably by means of a form fit. The receiving of the insert element into the injection element can be realised releasable as well as non releasable, for example by means of an adhesive bond. The insert element can be made, unlike the rest of the injection element, of a material which works well with the chemical requirements of the liquid substances. Moreover, the further area of the injection elements does not have to be made of corresponding resistant materials. Overall it is possible to manufacture the injection element with a relatively low technical effort, as a particularly chemical resistant material does not have to be used everywhere. Preferably, the releasable receiving of the insert element is such that a flexible exchange of parts is possible. A flexible exchange of parts is in particular possible when the insert element is solely form fitted, for example when held in the hole or through the slit. However an exchange can even then be possible when the insert element is force fitted and/or is held by an adhesive bond.
    The insert element consists preferably of a more technically complex material compared to the as injection elements. As the supplied liquid substances, in particular fertilizers, often comprise aggressive substances, the insert elements preferably consist of a corrosion and/or acid resistant material, such as stainless steel, aluminium, or an aluminium alloy. It is in particular preferred that the insert element consists of a plastic or a rubber material. Such materials are particularly easy to be processed and suitably durable. The injection elements preferably consist of a technically simple metallic raw material, which in particular does not reveal corrosion and/or acid resistant properties. The injection elements, with the exception of the insert element, serving for the supply of liquid fertilizer, can consist of construction steel, which is besides easy processing also cost effective. Preferred are, however, wear resistant steels such as heat treated steel or hardened steel. In case of hardened steel, the material is hardened namely preferably merely at a distal end area, which end area penetrates the earth soil first. The non hardened area of the steel stays preferably flexible to be able to be in particular resistant against mechanical loads. The hardness of the hardened area of the steel is preferably at least 50 HRC, in particular preferably at least 55 HRC, more in particularly preferably at least 56 HRC. The hardness of the hardened area of the steel is preferably not more than 63 HRC, in particularly preferably not more than 60 HRC to be able to resist mechanical loads in a particularly suited manner. In this way it is possible to manufacture, with little technical complexity, injection elements for supplying liquid substances. For a safe supply of the liquid substances, the insert elements preferably have an inner diameter of at least 2 mm. An inner diameter not greater than 6 mm, is in particularly preferred. To reach sufficient stability of the insert elements, the wall thickness of the insert elements are preferably at least 1 mm, preferably at least 1.5 mm. To be able to keep the thickness of the injection elements low, the thickness, respectively of the outer diameter of the insert element is preferably not more than 10 mm, in particular preferably not more than 8 mm, more in particular preferably not more than 6 mm.
    To make a flexible exchange of the injection elements or parts thereof possible, these are preferably releasably mounted onto the rotably supported wheel. Preferably, the injection elements are mounted via a screw connection, such that an uncomplicated fast exchange of each injection element is possible. The releasable mounting makes it therefore possible to individually replace worn injection elements, respectively worn parts of an injection element. In this way the technical complexity of sustaining the device can be further reduced. In case an injection element comprises an insert element which is releasably received, it is normally not needed to exchange the insert element due to wear. This is in particular the case when the insert element is protected inside a hole or in a slit of the injection element.
    In a further embodiment of the invention, the insert elements for supplying the liquid substances are mounted on the rotably supported wheel. Preferably the insert elements are provided directly on the circumference of the rotably supported wheel. The mounting of the insert elements onto the wheel can be realised releasable via a screw connection or non releasable via a weld connection. A releasable mounting of the insert element onto the wheel, makes a flexible individual exchange of the insert elements possible, however this is normally not needed, as an insert element is preferably protectedly accommodated. If the insert elements for supplying the liquid substances are mounted on the wheel, the remaining one part or multiple parts of the injection elements can be mounted thereon. The insert elements can for example be form fitted in holes or in slits of remaining parts of the injection elements. In this way it is possible to replace the remaining one part or more parts of the injection elements independent and separate of the insert elements. Preferably the insert elements consist of a stainless steel, aluminium, aluminium alloy, a rubber material or a plastic and/or the injection elements consist of a construction steel, a heat treated steel or a hardened steel, which is fully or partly hardened, such that in this way the technical complexity of exchanging corresponding spare parts can be further reduced.
    To insert liquid substances into the earth soil in an improved way, the injection elements preferably have at least two exit openings. Every injection element can also have three or four exit openings. Two exit openings can for example be established by means of a through hole such that within one injection element a connection to the area for supplying a liquid substance and/or insert element is established. Preferably the injection element has exit openings at opposite sides of the injection element. This ensures an equal distribution of the liquid substance when supplying the liquid substance into the earth soil. In one embodiment each insert element has the two said exit openings. In another embodiment one opening of the insert element lead to the exit opening, in particular in the form of a through hole.
    In an embodiment of the invention the area for supplying a liquid substance and/or the area of the insert element for supplying the liquid substances is arranged eccentrically in the injection element. The eccentric arrangement means that the area and/or the insert element for supplying the liquid substances are offset with respect to the width of each injection element, i.e. arranged remote from the respective centre line. The width of the injection element is preferably limited by a first peripheral plane, which distal end of the peripheral plane during engagement with the earth soil first contacts said earth soil and an oppositely placed second peripheral plane. Preferably, the area and/or the insert element for supplying the liquid substances are arranged offset with respect the second peripheral plane, such that a greater distance is present with respect to the first peripheral plane. A distance through the first peripheral plane of at least 20 mm is preferred. As the distal end of the first peripheral plane contacts the earth soil first and consequently has the greatest wear symptoms, such an arrangement makes it possible that in this area more material can be provided. Therefore, breakdown of one injection element, which would require a replacement, can be delayed.
    In case of an eccentrical arrangement it is often not possible to provide the area for supplying a liquid substance and/or the insert element for supplying liquid substances very near to a desired edge area, because holes for a screw mounting are in the way. In such cases it is preferred to arrange the area for supplying a liquid substance and/or the insert element for supplying the liquid substances centrally. The injection element is then designed in particular symmetrically. If a corner area is worn, it suffices that the injection element or at least the remaining area of the injection element, which does not comprise the insert element, is mounted over 180° rotated about its own longitudinal axis. The worn corner area is then prevented from first entering the earth soil and is not exposed to wear anymore.
    In an embodiment of the invention the remaining area of the injection element, which does not comprise an insert element, is not only constructed symmetrically along its longitudinal axis but is also constructed symmetrical lateral to said axis. If two neighbouring edge areas are worn, the injection element is mounted rotated about 180° around its own lateral axis. Then again two non-worn areas are available. The already worn areas do not reach into the earth soil anymore. Overall it is then also possible to turn and newly mount the remaining areas of the injection elements three times after a first mounting of the injection element such that four corner areas can be worn.
    In a further embodiment of the invention the distal end of the injection elements are wedge shaped and/or blade shaped and/or reinforced. When using a wedge shape, the wedge tip is preferably arranged at the side which first contacts the earth soil. The wedge tip reinforces the effective cutting of the injection elements on the earth soil. Moreover, the additional material at the distal end of the injection elements leads to a longer total time span of the injection element. When using a blade shape, the distal end of the injection elements can be tapered cutting edge sharp. This similarly improves effective cutting of the injection element on the earth soil. With an improved preferably additional material is provided, in particular in the area of first edge, which first contacts the earth soil. Alternatively or additionally, the reinforcement can be realised by means of an armouring with a further material. Such a design of the distal end of the injection element contributes to a reduction of wear and/or a breakdown due to wear.
    The injection elements are preferably manufactured of a flat material. The area for supplying the liquid substances within the injection elements can for example be manufactured by means of a hole. In case an insert element is provided for supplying liquid substances, the diameter of the hole corresponds preferably with the outer diameter of the insert element so as to realise a form fitting receival. In case insert elements are provided, a slit in the flat material is preferred, as a slit can be manufactured relatively easy, for example by means of punching or by means of a flame cutting procedure. After manufacturing a slit, a round material can be inserted in the slit and can the outer area of the slit be pressed together, such that this area may receive an insert element form fitted, similar as this is the case in case of a hole. Next, the round material will be pulled out again. Now, an insert element can be inserted. Such an insert element can for example be present in the form of a tube. The goal of the flat material is then to protect the insert element against mechanical loads.
    Preferably, the device comprises a pump for supplying the liquid substances to the injection elements. The liquid substances can thus he supplied into the injection elements under pressure. This ensures a continuous and reliable supply of the liquid substances.
    The object of the invention can also be reached by means of a device with the features of claim 9, where an injection element consists of an insert element for supplying the liquid substances and a surrounding outer element.
    Such a construction makes it possible to manufacture the outer element and the inner element of different materials. As the outer element of the injection elements is subject to the greatest demands, it can be manufactured of a sufficiently rigid, however, easy to be processed metallic raw material. A simple metallic raw material such as construction steel, heat treated steel or hardened steel is preferred, which material in particular does not have or has to have corrosion and/or acid resistant properties. To protect the insert element against damages by the in general very aggressive liquid substances supplied, a corrosion and/or acid resistant raw material, such as stainless steel, aluminium, aluminium alloy, rubber and/or plastic is preferably used. The construction of the injection elements of insert element and outer element makes the use of different materials possible, which materials are adapted to each of the demands. In this way the injection element can be optimally designed.
    Preferably, the outer element is releasably mounted to the insert element. The releasable mounting to the outer element can for example be realised via a corresponding interference fit or mounting screw. Due to the releasable mounting of the outer element to the insert element a flexible exchange of in particular the outer element is made possible. As the outer element is generally subject to the greatest demands, the costs for the insertion of the elements can herewith be reduced.
    An independent invention, which may also reach the said object, is a device with the features of claim 12. To this end, a device for inserting liquid substances is provided, comprising a rotably supported wheel on a shaft for moving the device on the earth soil, from which wheel circumference one or a multiple number of injection elements extend outwards for inserting liquid substances into the ground, having a liquid supply via a friction/glide contact on the wheel, a pressing element rotably fixed and moveable arranged along the shaft as well as a pressing direction for pressing the pressing element for generating the friction/glide contacts. The pressing device further comprises a spring for pressing which is arranged within the shaft.
    The liquid supply via the friction/glide contact comprises preferably a together with the wheel of the device rotably supported hub, having holes for supplying liquid to the corresponding injection elements.
    On the hub preferably a rotably fixed intermediate element is arranged with a liquid supply, which liquid supply supplies liquid substances to the hub by the friction/glide contacts.
    Unlike the prior art disclosed in publication EP 1 086 617 Al, the pressing element is pressed against the wheel by the spring within the shaft. Preferably, only a central spring for providing the pressing force is present. The force for generating the friction/glide contact and therewith the liquid supply to the rotably supported wheel can also be provided via a central spring. This initially simplifies the construction for providing the pressing forces as compared to the previously mentioned state of the art only a central element needs to be provided. The central spring within the shaft makes it further possible that this pressing force can be centrally controlled and/or adjusted. Multiple springs inevitably cause differently strong pressing forces. These differences lead to the friction/glide contact for the liquid supply to the wheel and moreover also further connecting elements, such as for example a pressing element, do not lie completely close against each other. A slit leads in such an arrangement either to the liquid supply not being tight and therefore having a leakage or that interspaces are created, in which dust and other particles can collect. This leads in the end to damages and break down of such a device. The pressing device according to the invention having a within the shaft arranged spring leads therefore to a more compact, tight arrangement for a liquid supply via a friction/glide contact, which accordingly fulfils its functions more reliable.
    In a further embodiment a kelly is provided for transferring the spring force onto the pressing element. The spring within the shaft is preferably centrally arranged on the kelly. For further fixation of the spring the kelly has for example a cavity into which the spring can be pressed. For guiding the kelly parallel to the shaft axis, the shaft preferably has lateral openings, for example in the form of slits, which run parallel to the shaft axis. Preferably the kelly is connected to the pressing element such that only one displacement parallel to the shaft axis is possible. The pressing device with a kelly leads to a simpler and more stable transfer of the spring force onto the pressing element. The pressing force of the spring can moreover be transferred more equally onto the pressing element, leading to the before mentioned advantageous effect.
    In a further embodiment of the invention, a set screw is provided for pretensioning the spring within the shaft. The set screw is preferably mounted at the end of the shaft via an inner thread. Due to the corresponding displacement of the set screw, the pretensioning of the spring within the shaft can be adjusted. The set screw for pretensioning the spring in the pressing device makes a flexible adjustment of the pressing force possible. In such a way, it is achieved that pressing forces can be flexibly adjusted and in this way maintain a tight arrangement of a liquid supply via a friction/glide contact. The aforementioned problems of slits being formed and leakage in the liquid supply can therefore be prevented.
    For an improved liquid supply via a friction/glide contact, an intermediate element, in particular made of plastic such as POM is preferably provided between the rotably supported wheel and the pressing element. The area of the wheel for the liquid supply consists preferably of stainless steel or aluminium. Such an intermediate element leads to an advantageous raw material pairing for a friction/glide contact and thereby to an improved glide friction between the parts.
    To ensure a secure guiding of the pressing elements, the pressing device, in particular the pressing element, has holes parallel to the shaft axis. Preferably guide elements such as bolts or protruding areas of neighbouring elements are received in the holes. The holes make sure that the rotationally fixed pressing element is moved substantially parallel to the shaft axis. Moreover, hereby a wedging and clamping of the pressing element, when moved, can be better prevented.
    A wheel which is suspended at one side is preferred to be able to better protect the ingress of dirt and moist.
    The object of the invention can also be independently reached by a method for inserting liquid substances into the earth soil by guiding injection elements by means of a wheel consecutively into the earth soil, where the area and/or the insert element for supplying liquid substances are or is positioned against or are extended against the rotation direction of the wheel. Such a method makes sure that more material is provided, which material seen in a rotation direction and thus at the side facing the earth soil contacts said earth soil. In this way, it can be reached that breakdown due to worn injection elements can be delayed.
    The following suspension of a wheel is preferred, which suspension is shown in an independent invention independent of the claimed parts, hut can preferably be combined with parts according to the claims. From the state of the art according to the European patent application EP 1 086 617 Al springs are provided consisting for example of steel. These are noted in Figure 2a of EP 1 086 617 Al with reference sign 62 and 63. These show the disadvantage that during use on the road, when the wheels for transporting in a horizontal position are pivoted, the wheels are brought into vibration and bump against each other. To prevent this, one or a multiple number of rubber spring elements according to the invention are used as wheel suspension. A rubber spring element has the advantage, that it has a dampening effect and thus counteracts vibrations.
    Rubber spring elements have a problem, that an inner part of such a spring element can initially be rotated relatively easy. This leads to the fact that the movement, which needs to be conducted for piercing into the ground, needs to be relatively great, respectively extensive. To reduce this problem, in an embodiment of the invention, the rubber spring element is pretensioned. This happens in particularly by means of rods that already rotate such rubber spring element somewhat and thus pretension said rubber spring element. It is preferred that only the rubber spring element is pretensioned, which spring element spring like supports the vertical leading to the axis, thus that the rubber spring elements can be responsible for long paths, respectively being responsible for great movements for piercing.
    In an embodiment of the invention there is a horizontal and a vertical rubber spring element. Preferably only a vertical rubber spring element is used, thus the rubber spring element which is preferably pretensioned similarly as in the foregoing manner.
    In case the device is directly connected to a tractor or a tank vehicle, the wheels have to be designed steerable. In that case a horizontal rubber spring suspension is needed.
    In the following exemplary embodiments of the invention are elucidated on the basis of the figures.
    It is noted that the figures are only schematic representations of preferred embodiments of the invention that are given by way of non-limited examples.
    In the figures the same or corresponding parts are designated with the same reference numerals.
    Figure 1 schematically illustrates the construction of an injection element 1 for inserting liquid substances into an earth soil. The injection element 1 is made of a flat material, whereby the measurements of the injection elements are determined through the height 2, the width 3 as well as the not in Figure 1 shown strength, respectively thickness of the injection elements. The width 3 of an injection element 1 is limited via a first peripheral plane 26 and a second opposite peripheral plane 27. Attachment holes 5 are arranged at a side of the injection elements, to arrange the injection element 1 via screw connections along the circumference of the rotably supported wheel 24. The connection holes 5 allow for the fast, partly or full replacement of individual injection elements 1. The injection element 1 consists of an insert element 4 illustrated by a dotted line for supplying the liquid substances and an outer element 25 forming the remaining area of the injection element 1. The insert element 4 can here be releasably received in a hole or a slit of the injection element 1. The supply of liquid substances results via the in Figure 2 or Figure 3 shown rotably supported wheel 24, which again preferably is provided with pressure via a pump. The discharge of supplied liquid substances occurs via the discharge opening 7. The distal end 6 of the injection elements resembles the outer side, which is inserted into the earth soil for inserting liquid substances. The distal end 6 contacts the earth soil when moving the device and penetrates the earth soil. Initially the first edge 1, respectively the first corner area, reaches with a corresponding rotational direction into the earth soil. Afterwards, the complete distal end 6 penetrates into the earth soil. When guiding the injection elements 1 out of the earth soil, the second edge 9, respectively the corner, area remains in contact with the earth soil until the end. As the greatest demands and wear symptoms occur when the injection element 1 enters into the earth soil, the insert element 4 is internally eccentrically ranged. The distance to the first edge 8 of the distal end is therefore greater than the distance to the second edge 9. Such an eccentric arrangement contributes to the fact, that an injection element has more material in the critical areas subject to the greatest wear symptoms. In this way, the lifetime of the injection element can be lengthened until critical wear before the remaining region, i.e. the protective outer element 25, needs to be replaced. In relation to the thickness of the injection elements, the insert element 4 is preferably arranged centrally, as to this effect there is no side with a predominantly greater demand.
    Figure 2 illustrates, in a sectional cut of the construction, the liquid supply to the rotably supported wheel 24. The wheel 24 is rotably supported with the help of a hub 10 on a shaft 11. In total two bearings support the wheel 24 beside hub 10 onto the shaft 11. Two sealing elements 21 are arranged on the bearings, protecting the construction against the ingress of dirt and/or liquids. When moving the device on the earth soil, the wheel 24 can therefore rotate freely. Along the circumference of the hub 10 liquid supplies to the injection elements 1 are arranged with predetermined spacings. The liquid supply to the wheel 24, in particular to the hub 10, occurs via a friction/glide contact 13. To this end the hub 10 has radially stretched holes in the area of the liquid supply that can be aligned with a hole of a rotably provided intermediate element 14. This makes a secure supply of the liquid substances for a certain rotational angle of the wheel 24 possible. The intermediate element 14 consists preferably of plastic such as POM, to make an advantageous wear/glide pairing between hub 10 of the wheel 24 and intermediate element 14 possible. To generate a tight friction/glide contact 13 a rotably fixed and axially moveable pressing element 15 is arranged on the shaft 11. The pressing element 15 is moved via a pressing device 16. The pressing device comprises a spring 18, arranges within within the shaft 11, pressing against a kelly 17. The kelly 17 is on its turn via slits 23 at the side of the shaft fixedly connected with the pressing element 15. By means of the spring 18 within the shaft 11 the pressing element 15 is pretensioned and ensures a tight friction/glide contact 13 for the liquid supply. The pretensioning further also causes a tight contact between the intermediate element 14, such that no dust or other particles can accumulate therein between. To flexibly adjust the spring pretensioning a set screw 19 is arranged at the end of the shaft 11. The set screw 19 can be adjusted to the needed pretensioning via an inner thread in the hole 22 of the shaft.
    Figure 3 shows a side view of the wheel 24 with outer elements 25 screwed thereon. The outer elements are symmetrically designed along their corresponding longitudinal axis. In case the shown wheel 24 is rotated clockwise, mainly the corner areas 8 wear, as these penetrate the earth soil first. Once the corner areas 8 are worn, the outer elements 25 are unscrewed and rotated about 180° around there longitudinal axis and screwed on again. Afterwards the corner areas 9 reach the earth soil first and are worn. In Figure 4 a zoomed in section is shown of the embodiment shown in Figure 3.
    In Figure 5 a further section of an embodiment is shown which is provided with a one sided wheel suspension, such that the opposite side is closed and no dirt can penetrate. Shown is a wheel 58, rotably supported on a shaft 53 for moving the device on the earth soil, where one or multiple injection elements 1 extend from the circumference of the wheel for inserting liquid substances into the earth soil. The construction parts 54 and 55 form a liquid supply to the insert elements 4 via a friction/glide contact between both construction parts. There is a pressing element 51, moveably arranged along the shaft 53, which is shown in the form of a pressure flange. A pressing device is provided for pressing the pressing element 51 to generate the friction/glide contact. The pressing device comprises a pretensioned spring 65 arranged within the shaft 53. The pretensioned spring presses the push rod 63 in case of figure 5 to the left in a direction of the wheel 58. As the push rod, respectively kelly 63, runs through the pressing element 51, it will also be pressed in the direction of the wheel 58. The further in figure 5 shown construction parts result from the reference sign list.
    The invention is not limited to the embodiments of the invention described above. Many variants are possible and are all considered to fall within the scope of the invention as defined in the following claims.
    Reference sign list: 1 injection element 2 height of 1 3 width of 1 4 insert element 5 connection hole 6 distal end of 1 7 exit opening 8 first edge of 6 9 second edge of 6 10 hub 11 shaft 12 connection for liquid supply 13 friction/glide contact plane 14 intermediate element 15 pressing element 16 pressing device 17 kelly 18 spring 19 set screw 20 liquid supply to 1 21 sealing element 22 hole 23 shaft slit 24 wheel 25 outer element of 1 26 first edge surface of 1 27 second edge surface of 1 51 pressure flange 52 O-ring 53 shaft 54 divider for liquid supply 55 divider ring for liquid supply 56 shaft seal 57 wheel hub 58 wheel 59 roller bearing 60 lid 61 disk 62 screw 63 push rod 64 lock screw 65 spring 69 pipe 70 roller bearing 71 O-ring
    权利要求:
    Claims (16)
    [1]
    Device for introducing liquid substances, preferably fertilizers, into the soil by means of a rotatably mounted wheel (24, 58) for moving the device onto the soil, wherein one or a multiple number of injection takes place on the circumference - elements (1) extend outwards for introducing liquid substances into the soil, characterized in that the injection elements (1) are made flat.
    [2]
    Device according to the preceding claim, characterized in that the thickness of the injection elements (1) is no greater than 15 cm, preferably no greater than 12 mm, more preferably no greater than 10 mm.
    [3]
    Device according to one of the preceding claims, characterized in that the injection elements each comprise an insert element (4) for supplying the liquid substances.
    [4]
    Device according to the preceding claim, characterized in that the insert element (4) consists of a corrosion and / or acid-resistant material, in particular of a stainless steel, aluminum, aluminum alloy, plastic and / or rubber.
    [5]
    Device according to one of the preceding claims, characterized in that the area and / or the insert (4) for supplying the liquid substances is arranged eccentrically or centrally, in particular with respect to the centerline facing the distal end.
    [6]
    Device according to one of the preceding claims, characterized in that, apart from the insert element (4), the injection element (1) is formed symmetrically for pivotable mounting through 180 ° with respect to the longitudinal and / or transverse axis.
    [7]
    Device according to one of the preceding claims, characterized in that the injection element (1) is detachably attached to the circumference of the rotatably mounted wheel (24, 58).
    [8]
    Device according to one of the preceding claims, characterized in that the distal end (6) of the injection elements (1) is designed to be wedge-shaped and / or leaf-shaped and / or reinforced.
    [9]
    Device in particular according to one of the preceding claims for introducing liquid substances, preferably fertilizers, into the soil by means of a rotatably mounted wheel (24, 58) for moving the device onto the soil, wherein the circumference extends one or a plurality of injection elements (1) outwards for introducing liquid substances into the ground, characterized in that an injection element (1) from an insert element (4) for supplying the liquid substances and an outer covering element (25) exists.
    [10]
    Device according to the preceding claim, characterized in that the insert element (4) consists of a corrosion and / or acid-resistant material, in particular stainless steel, aluminum, aluminum alloy, plastic and / or rubber.
    [11]
    Device according to one of the two preceding claims, characterized in that the inner diameter of the insert element (4) is no greater than 6 mm and / or the thickness of the outer element is no greater than 15 mm.
    [12]
    Device in particular according to one of the preceding claims, with a wheel (24, 58) pivotally mounted on a shaft (11, 53) for moving the device on the ground, one or more multiples on the circumference extend injection elements (1) for introducing liquid substances into the ground, with a liquid supply via a friction / sliding contact (13) to the wheel (24), with a pressure element arranged slidably on the shaft (11, 53) (15, 51) as well as a pressure device (16) for pressing the pressure element (15, 51) to generate the friction / sliding contact (13), characterized in that the pressure device (16) has an inner axis ( 11, 53) includes spring (18, 65) arranged for pressing.
    [13]
    Device according to the preceding claim, characterized by a carrier rod (17, 63) for transferring the spring force to the pressure element (15, 51).
    [14]
    Device according to one of the two preceding claims, characterized by a movement screw (19, 64) for adjusting the spring preload within the rod (11, 53).
    [15]
    Device according to one of claims 12 to 14, characterized in that the pressure device (16), in particular the pressure element (15, 51), has holes parallel to the axis of the shaft for guiding the pressure element.
    [16]
    Device in particular according to one of the preceding claims for introducing liquid substances, preferably fertilizers, into the soil by means of a rotatably mounted wheel (24, 58) for placing on the soil of the device, wherein the circumference one or a plurality of injection elements (1) outwardly for introducing liquid substances into the ground, characterized in that the wheel suspension comprises a rubber spring element.
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    同族专利:
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    NL2009107C2|2013-08-06|
    DE102011079290A1|2013-01-24|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2876718A|1953-04-10|1959-03-10|John B Vaughan|Rotary fertilizer injector|
    US2866422A|1956-04-19|1958-12-30|Raymond L Colson|Soil-treating apparatus|
    DE1230682B|1960-10-20|1966-12-15|Johannes Rix Dipl Ing|Rubber suspension for independent suspension, especially for motor vehicles|
    DE1261350B|1963-08-08|1968-02-15|Ruhr Stickstoff Ag|Mobile device for introducing liquid substances into the surface layer of the soil|
    DE19944770A1|1999-09-17|2001-04-26|Tilmann Von Dem Knesebeck|Device for introducing liquid substances into the soil|
    US6766865B1|2002-03-01|2004-07-27|John H. Dagel|Rotary soil probe|DE102016122035A1|2016-11-16|2018-05-17|KWD CNC-Zerspannungs- und Bearbeitungstechnik GmbH|Device for fertilizer injection|
    DE202020104014U1|2020-07-10|2021-10-12|Hörstkamp Trenntechnik GmbH|Tillage implement|
    法律状态:
    2018-03-07| MM| Lapsed because of non-payment of the annual fee|Effective date: 20170801 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102011079290A|DE102011079290A1|2011-07-18|2011-07-18|Device for inserting liquid substances, particularly fertilizers, in soil, for use with carrier, such as vehicle, has rotary mounted wheel for processing device on ground, where multiple injection elements are attached to inserting device|
    DE102011079290|2011-07-18|
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