WO2008061621A1

WO2008061621A1 - Seeder

Info

Publication number: WO2008061621A1
Application number: PCT/EP2007/009571
Authority: WO
Inventors: Heinz Dreyer
Original assignee: Amazonen-Werke H. Dreyer Gmbh & Co. Kg
Priority date: 2006-11-24
Filing date: 2007-11-05
Publication date: 2008-05-29
Also published as: DE102006055525A1

Abstract

The invention relates to a seeder for simultaneously scattering seeds and/or fertilizers. Said seeder comprises a frame (1), storage containers (9), several share units comprising, respectively, a seed coulter (7) and a fertiliser applying element (24) that are arranged at a distance in relation to each other in the direction of travel, and depth control rollers (8) that are arranged thereon and are associated with the share units. The respective share units are arranged laterally in several transversal rows and are offset in relation to each other on the frame (1) in the direction of travel. The aim of the invention is to scatter seeds and fertilizer separately in the earth in a simple manner. Said fertilizer applying element (24) comprises an inlet channel (26) and two outlet channels (27, 28), such that the outlet openings (27', 28') of the fertilizer applying element (24) are arranged at a distance from each other in the direction of travel.

Description

seeder

The invention relates to a sowing machine according to the preamble of claim 1.

Such a seeder is known for example from US 47 62 075. This seeder has from each a sowing and fertilizer share existing share units. The front group is formed as a group of fertilizers and penetrates deeper into the ground than the rear group formed as a saw. The rear share is laterally offset and spaced from the front share. Behind the crowds, a depth control roller is arranged, which aligns with the rear share and presses the seeds deposited in the ground. With the seeder having the projecting coulters, relatively ready seed furrows are created because relatively much soil is thrown out of the two furrows created by the fertilizer coulter and seed coulter, especially at relatively high speeds of more than 8 km / sec. h arise relatively deep furrows. Furthermore, the machine requires due to the deep penetration of the front fertilizer coulter into the ground, as well as the additional penetration of the rear Säschares in the ground relatively much traction.

The invention has for its object to enable in a simple manner a separate introduction of seed and fertilizer in the soil.

This object is achieved in that the Düngerausbringelement is arranged behind the coulter and having an inlet and two outlet channels, that the outlet openings of the two outlet elements of Düngerausbringelementes are spaced apart in the direction of travel. The Düngerausbringelement is spaced behind the coulter arranged, so as to ensure that in no case the entire amount of fertilizer is placed directly with the seed in the furrow, but that at least a part of the fertilizer is seen by a soil view of the seed separated in the seed furrow , Since the Düngerausbringelement spaced behind the coulter is arranged or the inlet and outlet channels of the fertilizer outlet element spaced behind the coulter ends, it is ensured that at least between the seed in the seed furrow and from the rear outlet channel of the fertilizer Ausbringelementes in the direction of the bottom leaking fertilizer soil returning to the sapwood passes between seed and fertilizer as a partition. In a simple way, the fertilizer application element can be configured with an inlet and two outlet channels in that the fertilizer application element has a pants-like intermediate piece dividing the inlet channel into two outlet channels.

In one embodiment, it is provided that the two outlets of the fertilizer outlet channels are arranged at least approximately one behind the other in alignment with the preceding coulter.

In another embodiment, it is provided that the front of the two outlets of the fertilizer outlet channels is arranged laterally offset, at least approximately in alignment, behind the leading coulter and the rear outlet of the fertilizer outlet channels, to the coulter and to the front outlet of the fertilizer outlet channels. This ensures in any case, even at very fast operating speed, that at least between a part of the fertilizer and the seed can form a soil layer in the seed furrow.

In order to return soil to the seed furrow with the rear spout, it may be provided that the rear spout of the fertilizer spout channels ends lower than the front spout of the fertilizer spout channels.

In order to ensure the desired separate storage of seeds and fertilizer according to the soil conditions, it is provided that the share units are arranged by means of an adjustable holder on the frame that the holder has a pointing in the direction of travel crowd arm, which pivots by means of a height-adjustable support arm on the frame in an upright plane hinged to the frame. This allows the sowing depth of the seed to be set accordingly.

In order to reliably return sufficient soil to cover the seed and to create a separating layer between seed and fertilizer in the sapwood, it is provided that behind each of the shares the share units from the ruts from the furrows at least partially trailing back Guiding elements, which are seen in plan view opposite obliquely and employed to a V-opening in the direction of travel, are arranged. A simple embodiment of this floor leading back into the seed furrow can be achieved in that the depth guide rollers form the guiding elements to be returned to the ground.

An advantageous adjustment of the guide elements leading back the floor is achieved in that a pressure roller is arranged in each case behind the coulters and the V-shaped guide helmets.

In order to be able to set the fertilizer application optimally, it is provided that the fertilizer application element can be adjusted to the coulter and / or arranged in different positions.

According to a method according to the invention, the seed and fertilizer of the drill is advantageously carried out in that in the seed furrow pulled by the coulter seed on the bottom of the seed furrow and through the outlet opening of the front outlet of the fertilizer outlet channel, a portion of the fertilizer flow above the seed in the seed furrow and the further fertilizer sub-stream is separated by the outlet opening of the rear fertilizer outlet channel and spaced from the seed and the first fertilizer sub-stream is deposited in the ground.

A safe separation of at least a part of the fertilizer by a layer of soil from the seed can be achieved in that the effluent from the outlet opening of the rear fertilizer outlet channel fertilizer is introduced laterally in the flowing back into the seed furrow ground stream.

Further details of the invention can be taken from the remaining subclaims of the example description and the drawings. Show here

1, the drill in side view and schematic diagram,

2, the coulter in side view,

3 the coulter in the view III - III, 4 the coulter in the view from behind,

5 is a depth control role in side view,

Fig. 6 is a depth control role in the view from the back and

Fig. 7 is a depth control role in perspective view.

The drill for use for direct sowing and mulch sowing has the elongate support frame 1, which is supported on the ground 3 via wheels 2, on. The support frame 1 has on its front side the pulling and coupling device 4 for coupling to the three-point hitch of a tractor. At the coupling device 4, the height-adjustable Abstellstützen 4 'can be arranged. On the rear side of the support frame 1, the coupling device 5, which can be raised and lowered hydraulically by means of hydraulic elements, is provided for coupling working tools, e.g. Arranged raking. Before the wheels 2 are on the support frame 1 on the support means 6, the Meißelsäschare 7 arranged with the rollers 8, which lead the Meißelsäschare 7 in depth in the ground. The reservoir 9 is arranged on the support frame. Via a pneumatic conveying and metering device 10, the seed located in the reservoir 9 is fed to the coulters 8 via the distributor heads 11 and the seed lines 12.

The Meißelsäschare are arranged on the supporting elements 6 as holders designed as parallelogram holders. The parallelogram mount has a two-part upper strut, which are connected to each other via a hinge on. By means of the spring, these struts are held in the extended position. In the embodiment, the Meißelsäschar 7 on a handle standing tip 16. However, it is also possible that the front lower portion of the Meißelsäschares 7 runs inclined downwards such that the blade tip is lagging relative to the other front areas. The driving and working direction is indicated by the arrow 17.

Each chisel 7, two depth guide rollers 8 are assigned, seen in plan view as shown in FIG. 3, opposite obliquely and are employed to a opening in the direction of travel 17 V arranged. The two rollers 8 are by means of an intermediate the rollers 8 arranged bracket 18 attached to the crowd 7. The rollers 18 are inclined to the direction of travel 17 employed that seen in plan view, the center line of the rollers 8 with the direction of travel 17 lying straight line forms an angle between 5 ° and 10 °, preferably about 8 °. The coulters 7 associated with a roller 8 are arranged at such a distance from each other that they have on the rear side in the direction of travel 17 a distance which corresponds at least approximately to the width of the coulters 7. The rollers 8 have a disc-shaped support plate 19, which is designed as an annular disc. At the free outer circumferential edge region 20 of the disc-like and flat flat support plate 19 projecting support or compression rods 21 are arranged in the radial direction. The supporting ^»and compression bars 21 are U-shaped or annular configuration. The web 23 connecting the two webs 22 of the U-shaped or annular support or pressure elements is arranged on the side facing away from the attachment region of the support or pressure elements 23, as FIGS. 5-7 show. The rod-shaped pressure elements 21 are each arranged spaced from one another in the outer radial region 20 of the annular disc 19 and have at least approximately in the axial direction. The support and pressure elements 21 have a round cross-section. The distance between the support and pressure elements 21 to each other is between 60 and 75mm. The distance between the parallel webs of the U and / or annular support elements is also between 60 and 75mm. The webs 22 have a length between 50 and 75mm. The outer contact area of the support and / or pressure elements 21 are arranged at an angle between 65 ° and 90 °, preferably about 70 ° to the retaining disk plane. Behind the share tip 16 of the coulter 7, the seed line 24 opens.

Spaced to the coulter, the fertilizer application element 24 is arranged. The coulter 7 with the share tip 16 and the Düngerausbringelement 24 form the coulter unit 25. The fertilizer application element 24 has a the inlet channel 26 in two outlet channels 27 and 28 dividing pants-like intermediate piece 29. Thus, the fertilizer application element 24 has an inlet channel 26 and two outlet channels 27, 28. In a manner not shown fertilizer Ausbringelement 24 is adjustable in the height direction, so that the spouts 27 'and 28' of the outlet channels can be set in the particular desired distance to the soil surface. Furthermore, the fertilizer application element 24 is arranged in and opposite to the direction of travel 17 in a manner not shown adjustable on the holder of the share 7 and the holder of the depth control rollers 8, so that the outlet channels 27, 28 in the respectively desired distance to the coulter 7 and to the seed spout 12 of the coulter 7 can be adjusted. Furthermore, the fertilizer application element 24 is rotatable about an upright axis on the holder, with which it is attached to the coulter 7 and the support of the depth guide rollers 8, so that the outlets 27 ', 28' of the fertilizer outlet channels 27, 28 both in alignment also offset from each other can be adjusted.

In the exemplary embodiment, the front 27 'of the two outlets 27', 28 'laterally offset to the coulter 7 and the rear outlet 28' of the fertilizer outlet channels 27, 28 also laterally offset to the coulter 7 and thus to the front outlet 27 'of the fertilizer outlet channels 27, 28 are arranged , As indicated by dashed lines, the rear run 28 'may terminate lower than the forward run 27' of the manure drain channels 27, 28.

It is also possible that the front outlet 27 'of the fertilizer outlet channel 27 is arranged in alignment with the coulter 7.

The functionality is as follows:

The trained as coulters 7 chisel pull a narrow groove in the ground. The furrow is placed behind the share point 16 through the seed outlet 12 seed on the furrow bottom of the furrow. Behind the coulter 7, the soil pushed by the blade tip 16 of the coulter 7 from the furrow partially flows back into this soil and covers the seed with soil. In this run back soil first passes fertilizer from the outlet 27 'of the front fertilizer outlet channel 27 in the back ground in the vicinity of the seed and through the rear outlet 28' of the rear fertilizer outlet channel 28 of the fertilizer at a greater distance to seeded in the seed furrow placed on the returning soil above and partly laterally of the seed deposited in the seed furrow. By the respective rear laterally arranged on both sides of the coulter unit the depth guide rollers 8 formed guide elements is thrown by the hosts 7 from the seed furrows soil at least partially back, so that the seed is sufficiently covered with soil in the seed furrow and at the same time ensures that the fertilizer applied from the fertilizer application element 24 is applied at least partially spaced by a soil layer to the seed. Thus, it is thus ensured that in the seed furrow drawn by the coulter 7, the seed on the bottom of the seed furrow and through the outlet opening 27 'of the front outlet channel 27 of the fertilizer Ausbringelementes 24, a portion of the fertilizer flow above the seed in the seed furrow and the further fertilizer partial flow through the outlet opening 28 'of the rear fertilizer outlet channel 28 is separated and stored at a distance from the seed and the first fertilizer sub-stream in the soil. In some cases, it makes sense that the fertilizer flowing out of the outlet opening 28 'of the rear fertilizer outlet channel 28' is introduced laterally in the ground stream flowing back from the seed furrow, the rear outlet channel 28 projecting into the earth stream flowing back into the seed furrow. As a result, a targeted placement of the fertilizer is achieved.

Claims

claims

1. Seeder for simultaneous application of seed and fertilizers with a frame, storage containers, a plurality of each coulter and Düngerausbringelement, which are arranged spaced from each other in the direction of travel, existing share units and the share units assigned and arranged on these depth guide rollers, wherein the respective share units in several Transversely rows laterally and in the direction of travel offset from each other on the frame are arranged, characterized in that the Düngerausbringelement (24) has an inlet (26) and two outlet channels (27,28) that the outlet openings (27 ', 28') of the two outlet channels (27,28 = the Düngerausbringelementes (24) in the direction of travel (17) are arranged spaced from each other.

2. Seeder according to claim 1, characterized in that the Düngerausbringelement (24) has a the inlet channel (26) in two outlet channels (27,28) dividing pants-like intermediate piece (29).

3. Seeder according to claim 1, characterized in that the two outlets (27 ', 28') of the fertilizer outlet channels (27,28) are arranged at least approximately one behind the other in alignment with the leading coulter (7).

4. Seeder according to claim 1, characterized in that the front (27 ') of the two outlets (27', 28 ') of the fertilizer outlet channels (27,28) at least approximately in alignment behind the hurrying coulter (7) and the rear outlet ( 28 ¹ ) of the fertilizer outlet channels (27,28) laterally offset from the coulter (7) and the front outlet (27 ¹ ) of the fertilizer outlet channels (27,28) is arranged.

5. Seeder according to claim 1, characterized in that the rear outlet (28 ') of the Düπgerauslaufkanäle (27,28) deeper than the front outlet (27') of the fertilizer outlet channels (27,28) ends.

6. Seeder according to claim 1, characterized in that the share units (7,24,25) are arranged by means of an adjustable holder on the frame, that the holder has a in the direction of travel (17) pointing crowd arm, which by means of a hö- henverstellbaren Haltearmes is hinged to the frame in an upright plane pivotally mounted on the frame.

7. Seeder according to claim 6, characterized in that the holding arms are adjustable by means of a central adjusting device.

8. Seeder according to claim 1, characterized in that the coulters (7) are formed as a narrow groove in the ground pulling chisel coulters.

9 Seeder according to claim 1, characterized in that behind and laterally on both sides of the share units (7,24,25) from the coulters (7) from the furrows thrown bottom of the at least partially recirculating guide elements (8) seen in plan view obliquely opposite and to a in the direction of travel (17) opening V are employed, are arranged.

10. Seeder according to claim 9, characterized in that the depth guide rollers (8) form the bottom attributable guide elements.

11. Seeder according to one or more of the preceding claims, characterized in that in each case behind the coulters (7) and the V-shaped to each other employed Leithelmenten (8), a pressure roller is arranged.

12. Seeder according to one or more of the preceding claims, characterized in that the Düngerausbringelement (24) to the coulter (7) adjustable and / or can be arranged in different positions.

13. A method for applying seed and fertilizers with a seeder according to one or more of claims 1-12, characterized in that in the seed coulter (7) drawn seed furrow at the bottom of the seed furrow and through the outlet opening (27 ') the front outlet of the fertilizer outlet channel (27) a part of the fertilizer stream above the seed in the seed furrow and the other fertilizer sub-stream through the outlet opening (28 ') of the rear fertilizer outlet channel (28) separated and spaced to the seed and the first fertilizer sub-stream is deposited in the ground.

14. The method according to claim 13, characterized in that from the outlet opening (28 ') of the rear fertilizer outlet channel (28) effluent fertilizer is introduced laterally into the flowing back into the seed furrow bottom stream.

15. The method according to claim 13, characterized in that the rear outlet channel (28) protrudes into the flowing back into the seed furrow earth current.