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EP-4739086-A1 - DISTRIBUTING DEVICE FOR AN AGRICULTURAL WORKING DEVICE

EP4739086A1EP 4739086 A1EP4739086 A1EP 4739086A1EP-4739086-A1

Abstract

The invention relates to a distributing device for an agricultural working device (10) for discharging granular solids from at least one storage container (16) to at least one dispensing unit (20) by means of a conveyor system (18), in particular a pneumatic conveyor system, comprising a housing (32), wherein the housing (32) has at least one storage container-side feed opening (42, 44), at least one conveyor opening (72) for granular solids, and at least one turning outlet (74). According to the invention, at least one rotary slide (50, 52) is arranged in the housing (32) in order to guide the granular solids, wherein the rotary slide (50, 52) is designed to be switchable between a conveyor position and a turning position by being rotated about a rotational axis (60), in particular a vertical rotational axis, and the granular solids are guided from the at least one feed opening (42, 44) to the conveyor opening (72) in the conveyor position and to the turning outlet (74) in the turning position.

Inventors

  • WERRIES, DIETER

Assignees

  • Lemken GmbH & Co KG

Dates

Publication Date
20260513
Application Date
20240704

Claims (15)

  1. 1 . Distribution device for an agricultural implement (10) for distributing granular solids from at least one storage container (16) to at least one delivery unit (20) by means of a, in particular pneumatic, conveying system (18), with a housing (32), wherein the housing (32) has at least one inlet opening (42, 44) on the storage container side and at least one conveying opening (72) for granular solids, as well as at least one turning outlet (74), characterized in that at least one rotary slide valve (50, 52) for guiding the granular solids is arranged in the housing (32), wherein the rotary slide valve (50, 52) is designed to be movable between a conveying position and a turning position by rotation about an, in particular vertical, axis of rotation (60), wherein the granular solids are conveyed from the at least one inlet opening (42, 44) in the conveying position to the conveying opening (72) and in the turning position to the turning outlet (74).
  2. 2. Distribution device according to claim 1, characterized in that the rotary slide has at least one outlet opening (64) which, in the conveying position, is arranged to at least partially overlap the conveying opening (74) of the housing (32), and a turning opening (68), in particular on the bottom side, which, in the turning position, is arranged to at least partially overlap the turning outlet (74) of the housing (32).
  3. 3. Distribution device according to claim 1 or 2, characterized in that the rotary slide has a substantially cylindrical shape and is open on the inlet opening side.
  4. 4. Distribution device according to one of the preceding claims, characterized in that the rotary slide valve (50, 52) has an inlet opening (62) substantially opposite the outlet opening (64), wherein the inlet opening (62) in the conveying position is arranged at least partially overlapping with an inlet opening (70) of the housing (32).
  5. 5. Distribution device according to one of the preceding claims, characterized in that the rotary slide valve (50, 52), in particular on the bottom side, has two turning openings (68) which, in the turning position of the rotary slide valve (50, 52), at least partially overlap with the at least one turning outlet (74) of the housing (32).
  6. 6. Distribution device according to one of the preceding claims, characterized in that the rotary slide valve (50, 52) has on one side, in particular on the bottom side, a bearing (76) for rotatable mounting on the housing (32).
  7. 7. Distribution device according to one of the preceding claims, characterized in that the rotary valve (50, 52) has contours (82) on the inside, in particular on the bottom side, for improving the conveyance of the granular solids.
  8. 8. Distribution device according to one of the preceding claims, characterized in that the rotary slide valve (50, 52) has a projection (66) formed at least partially along the inlet opening, through which in particular an insert (80) can be received.
  9. 9. Distribution device according to one of the preceding claims, characterized in that in the housing (32) next to the first rotary valve (50) a second rotary valve (52) is arranged, which is designed to be movable by rotation between a conveying position and a turning position.
  10. 10. Distribution device according to one of the preceding claims, characterized in that an actuating device (54) is provided for displacing at least one rotary valve (50, 52).
  11. 11. Distribution device according to one of the preceding claims, characterized in that a switching device (46), in particular flap-shaped, for guiding the granular solids to the first, second or both inlet openings (42, 44) is arranged in the housing (32).
  12. 12. Distribution device according to one of the preceding claims, characterized in that an actuator (48) is provided for actuating the switching device (46).
  13. 13. Distribution device according to one of the preceding claims, characterized in that the housing (32) is formed in several parts, in particular from at least two symmetrical partial bodies (38, 40).
  14. 14. Distribution device according to one of the preceding claims, characterized in that the housing (32) forms at least one fastening flange (34), in particular above the at least one rotary valve (50, 52).
  15. 15. An agricultural implement for spreading granular solids with a, in particular pneumatic, conveying system for conveying the granular solids from a storage container to a number of delivery units, in particular with at least one dosing unit, with at least one distribution device according to one of the Claims 1 to 14.

Description

distribution device for an agricultural implement The present invention relates to a distribution device for an agricultural implement for spreading granular solids. Granular solids, for example in the form of seed or fertilizer, are usually transported from a storage container to one or more delivery units by means of a conveyor system. Mechanical conveyor systems or often pneumatic conveyor systems are used for this, which convey the granular solids by means of a blower via connecting lines from the storage container, for example through a distribution device and a plurality of lines connected there, to the respective delivery units. The supply of the granular solids from the storage container to the conveyor system is controlled by means of a dosing device. EP 1570716 A2 discloses a generic agricultural machine with a metering device for metering a granular solid. This machine for distributing a granular solid has a metering device with one or more replaceable cell wheels. The dosing device is usually followed by a distribution device through which the seed can be introduced into one or more lines of the conveyor system. In order to ensure that the desired amount of granular solid material, such as seed, is applied, a so-called calibration test is usually carried out before sowing begins. The desired dosing amount is set on the machine and then the dosing is carried out for a certain period of time. The dosed seed is not distributed via the The seed is not transported away by a conveyor system, but is instead led out of the machine in front of the distribution device or through the distribution device, for example into a collecting tray. The disadvantage here is that more space is required in the vertical direction if the seed is discharged in front of the distribution device and, secondly, even if the seed is led through the distribution device, seeds can jump and remain in the machine, which are then missing from the calibration test and falsify the measurement result. It is therefore the object of the present invention to provide a distribution device for an agricultural implement, which enables an improvement in the calibration test and an optimized use of the installation space. The object is achieved by a working device according to the features of claim 1. Advantageous embodiments of the invention are specified in the subclaims. A distribution device for an agricultural implement for distributing granular solids from at least one storage container to at least one delivery unit by means of a, in particular pneumatic, conveying system, with a housing, wherein the housing has at least one inlet opening on the storage container side and at least one conveying opening for granular solids, as well as at least one turning outlet. According to the invention, at least one rotary slide valve for guiding the granular solids is arranged in the housing, wherein the rotary slide valve is designed to be movable between a conveying position and a turning position by rotation about an, in particular vertical, axis of rotation, wherein the granular solids are guided from the at least one inlet opening in the conveying position to the conveying opening and in the turning position to the turning outlet. By arranging a rotary valve within the housing of the distribution device, the distribution device can be designed in such a way that no granular solids can be lost during the calibration test. In both the conveying position and the calibration position, only the openings required in each case can be opened, i.e. permeable to the granular solids, while the other openings are arranged in such a way that no granular solids can be passed through. The housing can also have at least one inlet opening, which can be connected to the conveying system, in particular on the fan side. For example, a conveying air flow for transporting the granular solids can be introduced into the housing from a fan through this inlet opening. The calibration outlet of the housing can be formed on the bottom side of the housing, in particular below the rotary valve. To distribute the granular solids into several lines, several rotary valves can be arranged one above the other, for example. The rotary valve can be designed in the form of a cylinder that is rotationally symmetrical about a rotation axis, with a jacket surface and a lower or upper base surface. For example, by rotating the rotary valve by essentially 90°, it is possible to switch between the conveying position and the calibration position. The rotation axis of the rotary valve can be arranged at an angle, in particular essentially at a right angle, to the conveying direction. The rotation axis can be aligned essentially horizontally or vertically. Due to the closed design of the distribution device with the rotary valve within the housing, only the required openings for granular solids can be arranged so that they are permeable, particularly in the calibration position of the rot