• 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 present invention relates to a loading device (7) for a bill. Such a bill is a part of a bill unit (6), which is connected to a mounting beam (8) in an agricultural machine. In this case, a wedge shaft (9) located in the wedge unit is connected with a connector (13) to the fastening beam in a first fastening point (A). The connection is made with the loading device (7) which comprises a leaf spring package (14) formed by a leaf spring or by several leaf springs. Here, the leaf spring or leaf spring package is attached to the beetle shaft at a distance (L1) from the outer end (15) of the beetle shaft in order to provide a second attachment point (B), and between the outer end of the beetle shaft (15) and the attachment (16) a press (17) is provided. ) which can be displaced along the leaf spring or leaf spring package. This forces the leaf spring or leaf spring package against the bill shaft in order to provide a third attachment point (B2) and process the free projections (L3) of the leaf spring or leaf spring package.
    公开号:FI20205466A1
    申请号:FI20205466
    申请日:2020-05-07
    公开日:2021-09-30
    发明作者:Mika Järvinen；Tapio Peltoluhta；Vesa Järvinen
    申请人:Junkkari Oy；
    IPC主号:
    专利说明:

    2200657EN 1
    BACKGROUND OF THE INVENTION The present invention relates to a Vantaa weighting system according to the preamble of claim 1, which device controls the sowing depth of the drill.
    At present, the so-called direct sowing method has been widely utilized in sowing work, in which the seed to be sown is placed in uncultivated land in connection with the tillage in Vantaa or a pair of plows.
    The disc and disc coulters that are mainly used in used seed drills are not ground-driven, so they need to be weighted to reach the desired drilling depth. In this case, the sowing depth is adjusted in such a method by raising or lowering the position of the rims in relation to the transport, adjusting or roller wheels in the seed drill. The height of the rims can be adjusted depending on the prior art for the entire width of the machine, in groups or even per rim.
    The sowing depths of the seeds usually vary from 0 to 60 mm. By using the same sowing depth for the respective seed type, the most even emergence and growth is possible. In order to reach the desired sowing depth under different conditions formed by different soil types, emphasis is placed on utilizing springs and / or hydraulics. On the other hand, the weighting force is also adjusted so that the coulters remain at the set depth in order to avoid excessive compaction of the ground.
    A seed drill aiming for such a result is disclosed in WO 85/05246, in which the rims are connected to the body of the drill by means of a torsion rubber spring. In such a structure, however, the vertical movements of the coulters N are insufficient and the sowing depth varies according to the filling level of the seed drill.
    On the other hand, a solution is known according to U.S. Pat.
    O S Brief description of the invention N The object of the invention is to provide a weighting system in Vantaa with which the above-mentioned problems can be mainly solved.
    2200657EN 2 This object is achieved in that the weighting system in Vantaa has the features defined in the claims in accordance with the present invention. More specifically, the system according to the invention is mainly characterized by what is set forth in the characterizing part of claim 1. Preferred embodiments of the invention are the subject of dependent claims. The basic idea of the invention is to control the running depth of the coulters in the drill in particular. The invention provides considerable advantages. Thus, the present Vantaa weighting system can be used to adjust the weighting per bath. Thus, for example, it is possible to choose a heavier weight for the wheels of a working machine, such as an agricultural tractor, because the soil to be worked is more trampled there. The present Vantaa weighting system has a robust and simple structure, the flexible element of which can be easily replaced if necessary without having to dismantle the structure of the bath unit. In this way, work can be resumed quickly, even if the weighting system is broken, for example in connection with crossing a stone in the country being worked on. Other advantages of the invention will be apparent from the following detailed description of specific embodiments of the invention. BRIEF DESCRIPTION OF THE DRAWINGS In the following, a preferred embodiment of the invention will be described in more detail with reference to the accompanying drawing, in which Figure 1 is a schematic side view of a weighting system according to the present invention mounted on a drill;
    S E 30 © DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT The present figures do not show the Vantaa weighting system on an S scale, but are schematic, illustrating the basic structure and operation of the preferred embodiments. In this case, the components indicated by reference numerals in the accompanying figures correspond to the components indicated by reference numerals in this description.
    2200657EN 3 The present Vantaa weighting system according to Fig. 2 is shown in the following by way of example for use in the towed agricultural machine according to Fig. 1, as represented in this exemplary case by a drill 1. Such a drill thus comprises a drawbar 2 connected to a suitable implement, such as protruding from the main body 3 of the drill. On top of the main body, seed and / or fertilizer containers 5 are schematically shown.
    The Vantaa weighting system 7 according to Fig. 2 is adapted to control a hoop unit 6, which in its present embodiment consists, by way of example, of a hoop arm 9 and a disc shaft 10 rotatably connected thereto, a subsequent pressure wheel 11 and a unit terminating track 12. and its structure has not been described in more detail in this connection.
    The hoop unit 6 is resiliently connected to the mounting beam 8 at the mounting point A by connecting means 13 by the present weighting system 7, which comprises a leaf spring pack 14 formed by one or more leaf springs.
    In this system, a leaf spring or leaf spring pack is extended to travel along the hinge arm 9, where it is attached to the distance L1 of the hinge arm from the outer end 15 of the hinge arm by at least one mechanical fastener 16, such as a bolt-nut combination. This fastener forms the second fastening point B of the hoop arm. Thus, the elasticity of the leaf spring or leaf spring pack AN is determined by the free protrusion 7 formed by the distance L2 between its fastening beam 8 and the fastening points A and B on the hoop arm 9. The greater this distance L2, the more flexible the coulter unit © 30 is connected to the mounting beam, and the less force the coulter unit 6 is pressed against the surface of the sowing area. It follows that by reducing the distance formed by L2, an increase in the magnitude of the force i resisting the rotation of the rim unit is obtained. By inserting a leaf spring or a leaf spring pack between the outer end 15 N of the hoop arm and the bracket 16 separately against the hoop arm, a new third attachment point B2 is provided. This pressing means is arranged to be movable by a leaf spring or
    2200657EN Along a pack of 4 leaf springs. Since this connecting means forms a substantially rigid connection between the hoop arm and the leaf spring or leaf spring pack, a new control projection is formed in the system at the same time, i.e. the distance L3 between the fixing points A and B2. The use of the connecting means thus makes it possible to adjust the force against the rotation of the individual rim unit 6. That is, the closer the pressing means 17 is brought to the outer end 15 of the hoop arm, the shorter the adjustment protrusion L3 is formed and the stiffer the leaf spring or leaf spring pack is formed. This stiffness of the leaf spring or leaf spring pack thus affects, for example, the weight per seed drill. By positioning the pressing means on the hoop arm 9, the weighting of a single hoop unit can simply be influenced. By varying the material and amount of leaf springs, the range of weighting provided by the system can be affected. Thanks to the structure, such a change can also be carried out retrospectively and, if necessary, even per bath unit.
    The hoop arm 9 can also be provided with barriers 18 on its lower surface, such as transverse strips, which, if necessary, can be used to prevent longitudinal movements of the pressing means 17. Such restraints can also minimize the need for tightening of the compression means and prevent unnecessary breakage or excessive deformation of the structures.
    It will be apparent to one skilled in the art that as technology advances, the basic idea of the solution described above can be implemented in many different ways. The solution presented and its embodiments are thus not limited to the examples described above but may vary within the scope of the claims.
    o OF O OF LÖ I OF O
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    权利要求:
    Claims (3)
    [1]
    A swath weighting system (7), such a hoop being part of a hoop unit (6) connected to a mounting beam (8) in an agricultural machine, characterized in that the hoop unit (6) comprises a hoop arm (9) connected to the mounting beam (8). ) at the first attachment point (A) by a connecting means (13) provided by a weighting system (7) comprising a leaf spring pack (14) formed by a single leaf spring or a plurality of leaf springs, the leaf spring or leaf spring pack being extended to travel the rim arm (9) and is attached to the distance (L1) of the hoop arm from the outer end (15) of the hoop arm to provide a second attachment point (B); to force a spring or leaf spring pack against the rim arm and to provide a third attachment point (B2) and to release the leaf spring or to provide and modify a leaf spring pack adjustment protrusion (L3).
    [2]
    Vantaa weighting system (7) according to Claim 1, characterized in that the rim unit (6) is connected to the fastening beam (8) by a leaf spring pack (14) with at least two leaf springs.
    [3]
    Vantaa weighting system o (7) according to Claim 1 or 2, characterized in that the lower surface on the hoop arm (9) has transversely blocking 18.
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    类似技术:
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    同族专利:
    公开号 | 公开日
    FI129232B|2021-09-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
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    优先权:
    申请号 | 申请日 | 专利标题
    FI20205466A|FI129232B|2020-05-07|2020-05-07|Coulter pressure system|FI20205466A| FI129232B|2020-05-07|2020-05-07|Coulter pressure system|
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