RU2790248C2 - Node for dosing system of spreading machine for spreading of bulk material or the like, dosing system and spreading machine - Google Patents

Abstract

FIELD: mechanical engineering.

SUBSTANCE: invention relates to a node for a dosing system of a spreading machine for spreading of bulk material. The node contains the first element equipped with the first hole, the second element equipped with the second hole, and a drive connected to at least one of the first and the second elements and made with the possibility of provision of a moving force for relative movement between the first and the second elements for adjustment of a size of a dosing hole provided with an overlapping area, in which the first and the second hole are overlapped. The first and the second elements are movable by means of relative movement to the first position providing a dosing hole with the first hole size and the second position other than the first position and providing a dosing hole with the second hole size other than the first hole size. At the same time, a central section of the dosing hole is locally fixed, when the first and the second elements are moved between the first and the second positions. A dosing system for a spreading machine for spreading of bulk material, containing the above-mentioned node, and a spreading machine for spreading of bulk material, including the above-mentioned system with the node, are additionally provided.

EFFECT: invention provides improved quality of dosing of bulk material.

13 cl, 7 dwg

Description

The present disclosure relates to a dosing system assembly of a spreading machine for distributing bulk material or the like, a dosing system, and a spreading machine, in particular an agricultural spreading machine.

BACKGROUND OF THE INVENTION

Spreaders or spreading machines are used to distribute bulk material or the like. In the case of an agricultural spreader, the fertilizer can be distributed. Document EP 0 511 714 A2 relates to a spreading machine which is equipped with a device containing a spreading disc. The bulk material to be spread by the spreading machine is taken into a storage container or tank. From the storage container, the bulk material is fed to the spreading discs. On the way from the storage container to the spreading disc, the bulk material is dosed by the dosing system, thus controlling the amount of bulk material distributed over time.

SUMMARY OF THE INVENTION

It is an object of the present invention to provide a dosing system assembly of a spreading machine for distributing bulk material or the like, a dosing system and a spreading machine that provide improved dosing of the spreading material.

To solve the problem, a unit is provided for a dosing system of a spreading machine for distributing bulk material or the like according to independent claim 1. Additionally, a dosing system for a spreader and a spreader are provided according to claims 12 and 13, respectively, of the claims. Additional embodiments are disclosed in the dependent claims.

According to an aspect, an assembly is provided for a dosing system of a spreading machine for distributing bulk material or the like. The node contains: the first element provided with the first hole; a second element provided with a second hole; and an actuator connected to at least one of the first and second elements and configured to provide a driving force for relative movement between the first and second elements, thereby adjusting the opening size of the metering opening provided by the overlapping area in which the first and second holes are covered. The first and second elements are movable by relative movement to the first position, providing a metering hole with a first hole size, and a second position different from the first position, and providing a metering hole with a second hole size different from the first hole size, while the central portion of the metering hole the hole is locally fixed when the first and second elements are moved between the first and second positions.

According to another aspect, a dosing system is provided for a spreading machine for distributing bulk material or the like, the dosing system comprising an assembly.

According to yet another additional aspect, a spreading machine for distributing bulk material or the like is provided, the spreading machine comprising:

– a storage container for receiving bulk material to be distributed,

– a spreading device configured to distribute bulk material, and

- a dosing system configured to dose the bulk material obtained from the storage container into the spreader.

The relative movement provided for the first and second elements allows fine adjustment (fine tuning) of the size of the metering hole, which is determined by the overlap area for the first and second holes, and the overlap area is adjusted according to the relative position between the first and second elements. Linear motion can be applied in small increments maintaining accurate dosing of bulk material.

If the first and second members are provided in a first relative position or orientation to each other, the aperture size of the metering hole is provided by the first dimension. Changing the relative position or orientation of the first and second members to each other will place them in the second relative position, thereby setting the second orifice size of the metering orifice to be different from the first orifice size. To change or adjust, adjust the size of the overlap area in which the first and second holes overlap. The dispensing opening may be provided in a closed position if there is no overlap between the first and second openings.

The center (site, spot or region) of the dispensing opening is held in a fixed or non-movable position. If the spreader located under the node does not change its relative position relative to the node, such fixation of the central portion of the metering hole can ensure that the center of the discharge of bulk material in the spreader is maintained, while the size of the metering hole is controlled by the relative movement between the first and second elements.

With regard to the throughput of bulk material through the metering opening, a throughput of at least about 300 kg/min can be achieved in operation.

The assembly may include a guide mechanism configured to linearly guide at least one of the first and second elements for linear movement. The guide mechanism provided for guiding when moving at least one of the elements may comprise one or more guide slots provided, for example, in at least one of the first and second elements. Within such a guide slot, a pin or protrusion may be received and guided while a linear movement or movement is being performed.

The assembly may further comprise a first hinge connecting the drive to the first element. The first hinge may include one or more levers for connecting the actuator to the first element. In one example, the pulling and retracting actuator actuator may be coupled to the first pivot and thus function in conjunction with the first pivot to drive linear movement or movement.

The assembly may include a second hinge connecting the actuator to the second element. The embodiments or design options set forth for the first hinge above may apply to the second hinge, mutatis mutandis.

The second element may be forcibly movable (forced to move) in response to movement of the first element, movement driven by an actuator. If the first element is actuated to move, such movement of the first element will force the movement of the second element. In this case, the relative movement between the first and second elements contains the movement of both the first and second elements. Similarly, it can be foreseen that the first element is forced to move if the second element is actuated to move. Thus, synchronized movement or movement of the first and second elements can be applied.

At least one of the first and second holes may be a square hole. At least one of the first and second holes may be provided with a square hole having the same length on all sides of the hole, such as on all four sides of the square hole.

The metering hole may be a square hole. Through the relative movement between the first and second elements, the corner portions of the first and second holes located opposite each other can move to a closer or more distant position. The metering opening may be in the form of a square hole (square hole or window).

The first shape of the metering hole provided in the first position may be equal to the second shape of the metering hole provided in the second position. In this embodiment, the first metering hole shape, if the first and second holes are in the first overlapping position, is equal to the second metering hole shape after the first and second holes are moved to the second overlapping position different from the first overlapping position. With relative movement between the first and second features (causing relative movement between the first and second holes), the shape type of the hole may not change. For example, at different relative positions between the first and second elements, the metering hole may be provided with a square hole (shape). However, depending on the relative position of the first and second elements, the metering hole has a different hole size. Depending on the size of the metering hole, more or less bulk material can pass through the metering hole.

The first and second elements can be made with the possibility of synchronous movement when conducting a relative movement. With respect to such an example or other embodiments, there may be one actuator to move both the first and second elements for relative movement. Alternatively, a separate drive may be assigned to each of the first and second elements. The drives can be controlled by a control device, thereby allowing the movement of the first and second elements to be synchronized.

In another example, the first and second elements may move out of sync. To adjust the size of the metering hole, the first element can be moved first, and then the second element is moved to finally adjust the metering hole.

In various embodiments, the adjustment of the size of the metering orifice can be carried out by moving both the first and the second element.

The relative movement may be conductive or achievable by linear movement of at least one of the first and second elements. Linear movement or movement is provided by one-dimensional movement or movement in a straight line. Alternatively, relative movement may be performed by applying a rotational motion.

To provide the driving force for relative movement between the first and second elements, at least one of a cylinder that can be extended and retracted and a rack and pinion may be provided. The cylinder may be provided by a hydraulic or pneumatic cylinder. For the cylinder, a piston may be provided in the chamber, the piston being connected to a piston rod which can be extended and retracted during operation. As for the rack and pinion mechanism, the gear wheel can be driven by an electric motor. Two racks may be provided on opposite sides of the gear, thereby driving or moving both racks by rotating the gear. The two racks may be connected to the first and second elements, thereby causing relative movement between the first and second elements if the gear is driven.

At least one of the first element and the second element may be provided with a plate element. For this or other examples, the first and second elements may be arranged one above the other in the vertical direction. The plate elements provided for both the first and second elements may be arranged in a parallel position. It can be provided that the first and second elements are sliding on each other in case of relative movement between the first and second elements. With respect to plate elements or other embodiments, the first and second openings may be provided in the central region of the first and second element, respectively.

The embodiments set forth above may apply to at least one of the dosing system and the spreader, mutatis mutandis. The spreader may be an agricultural spreader, for example for spreading fertilizer.

DESCRIPTION OF ADDITIONAL EMBODIMENTS

In the following, additional embodiments are described in more detail with reference to the figures. The figures show:

Fig. 1 schematically represents arrangements of elements for a spreading machine for distributing bulk material or the like;

Fig. 2 is a schematic perspective view of an assembly for a dosing system of a spreading machine for distributing bulk material or the like;

Fig. 3 is a plan view of the assembly of Fig. 2;

Fig. 4 is a bottom perspective view of the assembly of Fig. 2;

Fig. 5 is a bottom view of the assembly of Fig. 2;

Fig. 6 is a schematic plan view of another assembly for a dosing system of a spreading machine for distributing bulk material or the like; And

Fig. 7 is a schematic bottom view of the additional assembly of Fig. 6.

1 shows a schematic representation of an apparatus for a spreader or spreader, such as an agricultural spreader, for example for spreading fertilizer. The bulk material to be distributed is received in a storage container or tank 1, which can be transported, for example, by a tractor or can be provided on a tool. For spreading or distributing the bulk material, it is fed into a spreading device 2 containing, for example, one or two spreading discs, which are known as such for different types of spreading devices. Depending on the operating situation, a dosing system 3 is provided between the storage container 1 and the spreader 2 for supplying bulk material from the storage container 1 to the spreader 2, depending on the operating situation. The bulk material to be distributed is delivered from the storage container 1 to a dosing system 3 which will dose the bulk material into the spreader 2. This is shown schematically in FIG. 1 by arrow 4.

Next, with reference to figures 2 to 8, embodiments of an assembly for a dosing system for a spreading machine for distributing bulk material or the like are described. For example, the node can be used in the device shown in Fig.1.

Figures 2-5 show the node 10 for the dosing system of the spreader. The first element 11 and the second element 12 are located one above the other. In the example shown in FIG. 1, the first and second elements 11, 12 are provided with a plate element 11a, 12a. The first and second elements 11, 12 are movable relative to each other. In the case of movement, there is a guide mechanism 13 provided with guide slots 14 and guide pins 15 to guide or support the linear movement.

By means of linear movement, the overlapping area 16 in which the first opening 17 provided in the first element 11 and the second opening 18 provided in the second element 12 are overlapped, thus providing a metering opening 19. Through the metering opening 19, the bulk material to be distributed or spread the material can follow its path from the storage container 1 to the spreader 2 (see FIG. 1). By adjusting the overlap zone 16 with respect to its size, the dosing of the bulk material can be controlled.

In the example shown, both the first and second holes 17, 18 have a square hole shape. In addition, the metering hole 19 has a square shape, which is maintained in different relative positions between the first and second elements 11, 12.

The central section or region 19a of the metering opening is held in a fixed position if the first and second elements 11, 12 are moved relative to each other, for example, by synchronous movement.

To ensure relative linear movement between the first and second elements 11, 12, there is a drive 20 connecting both the first and second elements 11, 12. There are hinges 21, 22 connecting the arm 23 of the lever (see Figures 4 and 5). Therefore, if the shaft member 24 of the drive 20 is extended or retracted, both the first and second members 11, 12 will be forced to move linearly, thereby adjusting the size of the metering hole 19. The central portion of the metering hole 19 will remain in the same position (do not move).

Referring to Figures 6 and 7, another assembly is shown for a spreader dosing system. In figures 6 and 7, the same reference numbers apply to the same features as in figures 2-5. In the transmission stage of the combination of hinges 21, 22 and lever arm 23, there is a gear wheel 31 interacting with two racks 32, 33 provided on opposite sides of the gear wheel 31. Again, if the drive provides driving force, both the first and second elements 11, 12 move linearly relative to each other.

The features disclosed in this description, figures and/or claims may be material for implementing various embodiments, taken alone or in various combinations thereof.

Claims (22)

1. An assembly for a dosing system for a spreading machine for distributing bulk material, comprising: - the first element provided with the first hole; - a second element provided with a second hole; And - an actuator connected to at least one of the first and second elements and configured to provide a driving force for relative movement between the first and second elements, thereby adjusting the opening size of the metering opening provided by the overlapping area in which the first and second openings overlap; wherein the first and second elements are movable by relative movement to the first position, providing a metering hole with a first hole size, and a second position different from the first position and providing a metering hole with a second hole size different from the first hole size, while the central section the dispensing orifice is locally fixed when the first and second elements are moved between the first and second positions. 2. The assembly of claim. 1, further comprising a guide mechanism configured to linearly guide at least one of the first and second elements for linear movement. 3. An assembly according to at least one of the preceding claims, further comprising a first hinge connecting the actuator to the first element. 4. An assembly according to at least one of the preceding claims, further comprising a second hinge connecting the actuator to the second element. 5. An assembly according to at least one of the preceding claims, wherein the second element is forcibly moved in response to movement of the first element, movement driven by an actuator. 6. An assembly according to at least one of the preceding claims, wherein at least one of the first and second holes is provided with a square hole. 7. An assembly according to at least one of the preceding claims, wherein the first shape of the metering hole provided in the first position is equal to the second shape of the metering hole provided in the second position. 8. The node according to at least one of the preceding claims, in which the first and second elements are made with the possibility of synchronous movement when performing relative movement. 9. An assembly according to at least one of the preceding claims, wherein the relative movement is a linear movement of at least one of the first and second elements. 10. An assembly according to at least one of the preceding claims, wherein the actuator comprises, to provide driving force for relative movement between the first and second elements, at least one of: - cylinder, extended and retracted; and - rack and pinion mechanism. 11. An assembly according to at least one of the preceding claims, wherein at least one of the first and second elements is provided with a plate element. 12. A dosing system for a spreading machine for distributing bulk material, comprising an assembly according to at least one of the preceding claims. 13. A spreading machine for distributing bulk material, comprising: - a container for storing bulk material to be distributed; - a spreading device configured to distribute bulk material, and - a dosing system according to claim 12, configured to dose bulk material received from the storage container into the spreader.

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