JPH10201309A - Fertilizing and sowing device in a sowing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fertilizing and sowing device by which fertilizing and sowing works are adjacently executed so as not to mix seeds with fertilizer in a sowing machine which partially tills the field in a non-tillage state so as to execute sowing and fertilizing. SOLUTION: A groove making disk 26 for a sowing groove provided in the rear part of a tilling part which partially tills the field while freely rotatably supported and the groove making disk 27 for a fertilizing groove are arranged to permit mutual front parts to form adjacent reverse V-shapes towards the advance direction by planarly viewing. A sowing part 28a is positioned at the sowing groove making disk 26 side of a partition plate 33 which is provided between the groove making disks 26 and 27 and a fertilizing part 29a is at a fertilizing groove making disk 27 side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fertilizer / seeding apparatus in a sowing machine for sowing and fertilizing by partially tilling a field in a non-tilled state.

[0002]

2. Description of the Related Art Conventionally, as a sowing machine for partially tilling a field in a non-tilled state to perform sowing and fertilization, behind a tilling unit for partially tilling a seeding position in a field in a non-tilled state,
A sowing disc that forms a sowing groove and a working disc that forms a fertilizing groove are rotatably supported and provided, and the seed is sowed in the sowing groove behind the sowing disc for the sowing groove. It is known to provide a fertilizing part for discharging a fertilizer into a fertilizing groove at the back of a fertilizing groove disk for a fertilizing groove.

[0003]

However, when sowing and fertilizing are performed simultaneously in the above-mentioned sowing machine, if the fertilizing and sowing work is performed so that the seed and the fertilizer are close to each other for higher fertilizing effect, the seed and the fertilizer are not obtained. And there is a drawback that burning of fertilizer may occur due to mixing.

[0004]

SUMMARY OF THE INVENTION To solve the above-mentioned problems, a fertilizer-seeding apparatus in a seeder according to the present invention comprises a tilling unit 1 for partially tilling a sowing position in a non-tilled field.
6, a rotatably supported grooved disk 26 for forming the seeding groove B and a rotatably supported grooved disk 27 for rotatably forming the fertilizing groove C are provided. A seeding part 28a for sowing seeds in the seeding groove B is provided behind the seeding disk B for B, and a fertilizing part 29a for discharging fertilizer in the fertilizing groove C is provided behind the seeding disk 27 for the fertilizing groove C. In the seeding machine, both cropping discs 26, 2
7 are arranged so as to form an inverted V-shape in front of each other in the traveling direction in plan view.
A partitioning plate 33 is provided therebetween, and a seeding portion 28a is located on the side of the seeding groove disk 26 for the seeding groove B and a fertilizing portion 29a is located on the side of the seeding groove disk 27 for the fertilizing groove C in the partitioning plate 33. This is the first feature.

[0005] Further, the two production groove disks 26, 27 are arranged such that the lowermost position of the production groove disk 27 for the fertilizing groove C is lower than the lowermost position of the production groove disk 26 for the seeding groove B. This is a second feature.

A third feature is that the rear side of the lower end surface of the partition plate 33 is inclined upward.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION

Next, an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, a seeding machine 3 is connected to a rear portion of a body 1 such as a tractor via a lifting link mechanism 2 so as to be able to move up and down. The seeding machine 3 is connected to a top link 2a and a lower link of the lifting link mechanism 2. It comprises a tilling unit 6 detachably connected to the link 2b, and a fertilizer sowing unit 9 connected to a toolbar 7 projecting backward from the tilling unit 6 via a parallel link mechanism 8 so as to be able to move up and down.

As shown in FIGS. 1 and 2, the tilling unit 6 includes a gear case 11 to which PTO power is input from the body 1 side, a cylindrical frame 12 projecting right and left from the gear case 11, and a left and right side of the cylindrical frame 12. It comprises a side frame 13 protruding downward from both ends, a claw shaft 14 rotatably supported between the left and right side frames 13, a plurality of tillage parts 16 assembled to the claw shaft 14, and the like. At this time, each tilling unit 16 is provided with a tilling claw 17 and the like in a structure to be described later, and is rotatively driven to cultivate a non-tilled field.

The power input to the gear case 11 is transmitted to the pawl shaft 14 via a chain case 18 provided on the left end side of the cylindrical frame 12, and the tilling unit 16 is rotated with the rotation of the pawl shaft 14. The (tilling claw 17) is driven to rotate, and the field in a non-plowed state is tilled. However, since each tilling part 16 is assembled to the claw shaft 14 with an interval corresponding to a sowing interval, the field is seeded. Only the position is partially tilled at predetermined intervals.

Here, the structure of the tilling unit 16 will be described.
As shown in FIG. 3, the tilling part 16 is provided with the above-described tilling claws 17 (two provided) having a tip portion curved in the outer peripheral direction, and a drainage portion for drainage provided below the tilling portion of the field by rotation driving. The groove cutting blade 19 that forms the groove A has a structure provided in the cultivation cover 21 that covers the rotation locus of the cultivating claw 17, and the two cultivating claws 17 and the one groove cutting blade 19 are
The two tilling claws 17 are pivotally supported around the same point on the claw shaft 14 so that the curved directions are opposite to each other about the groove cutting blade 19.

Each of the tilling claws 17 is formed so as to have a substantially L-shaped cross-sectional shape in which the curved ends are curved outward in opposite directions, and the groove cutting blade 19 has a non-curved claw shape. (The shape is the same as that of a tilling claw having no curvature), and the rotation diameter d is larger than the rotation diameter D of the tilling blade 17. On the other hand, the cultivation cover 21 integrally has an arc-shaped upper surface portion 21a that covers the rotation locus of the tilling claw 17 and a semicircular side portion 21b that covers both left and right sides of the rotation trajectory of the tilling claw 17. And a cover stay 22 (see FIG. 2) which is provided between the left and right side frames 13.
It is fixedly installed integrally.

At this time, the tillage claw 17 on the claw shaft 14 is
The support point of the groove cutting blade 19 is located substantially at the center between both side surfaces 21b of the cultivation cover 21, and the cultivating claw 17 and the groove cutting blade 19 travel in the traveling direction of the body 1 passing substantially at the center of the side surface 21b. Are arranged on a straight line L along the line. The gap S between the upper surface portion 21a of the cultivation cover 21 and the cultivation claw 17 (including the groove cutting blade 19) becomes wider toward the rear.
A rear cover 23 for leveling the tillable soil is connected to the rear end of the tillage cover 21 so as to be vertically swingable. A gauge wheel 20 for regulating (adjusting) the height of the seeding machine 3 is also provided.

Next, the structure of the fertilizer seeding unit 9 will be described. The fertilizing seeding unit 9 is a seeding groove disk 2 that is a groove forming disk that forms a seeding groove B that is rotatably supported behind the tilling unit 16 (rear cover 23).
6, a fertilizing groove disk 27 which is a groove forming disk for forming the fertilizing groove C, a sowing device 28 for sowing a predetermined seed in the sowing groove B, a fertilizing device 29 for discharging fertilizer into the fertilizing groove C according to the sowing timing. , A covering disk 31 for covering the seeding groove B and the fertilizing groove C, and a pressure-reducing roller 3 for suppressing the covered seeding and fertilizing position.
2. A drive wheel 30 for driving the fertilizer sowing unit 9 is mounted on the frame 9a.

At this time, as shown in FIGS. 4 and 5, the seeding groove disk 26 and the fertilizing groove disk 27 form an inverted V-shape in which the fronts of the seeding groove disks 26 and the fertilizing groove disks 27 are close to each other in the advancing direction in plan view. The partition is arranged so as to form a V-shape in which the lower sides are close to each other toward the field side, and a partition extending rearward from the rear end of the seeding groove disk 27 between the seeding groove disk 26 and the fertilizing groove disk 27. A plate 33 is provided.

A seeding nozzle (seeding portion) 28a of the seeding device 28 is provided on the side of the seeding groove disk 26 of the partition plate 33, and a fertilizing device 29 is provided on the side of the fertilizing groove disk 27.
, A fertilizer application nozzle (fertilizer) 29a is provided. Seeding groove disk 26 is fertilizing groove disk 2
7, the seeding groove disk 26 and the fertilizing groove disk 27 have the above arrangement, and the fertilizing groove disk 27
Is lower than the lowermost position of the seeding groove disk 26 by h.
It is located below. The lower end surface of the partition plate 33 has a front side substantially parallel to a field scene (a fertilizing groove C or a sowing groove B formed) and a rear side inclined upward.

In the present embodiment, the sowing machine 3 is configured as described above, and the sowing and fertilizing unit 9 also travels by the drive wheels 30 along with the traveling of the body 1 such as a tractor, and the tilling unit 16 is rotationally driven, so that the cultivation unit 16 is not rotated. In the plowed field, the seeding streak portion is tilled, and a groove A for drainage is formed below the tilled portion by rotating the groove cutting blade 19, and the rear cover 23 leveles the tilled portion. At this time, since both the tilling claws 17 and the groove cutting blades 19 are provided at the above-mentioned positions in the tilling unit 16, the both tilling claws 17 and the groove cutting blades 19 and the cultivating cover 2 are provided.
A relatively large space R is formed between the side portion 21b and the first side portion 21b, and the clogging of the soil between the side portion 21b, the tilling claw 17, and the groove cutting blade 19 during tilling and formation of the drainage groove A is prevented. Is done.

The upper surface 21a and the tilling claw 17 (groove cutting blade 1)
9, the soil at the time of tilling is smoothly discharged to the rear of the tilling part 16 (tilling claw 17) through the gap S. As described above, the hindrance of the operation of the tilling claws 17 and the groove cutting blades 19 caused by the soil clogging is prevented, and the efficiency (performance) of tilling and formation of the drainage groove A is prevented from being lowered.

The side portion 21b of the tilling cover 21
May be formed of an elastic material such as a rubber material. In this case, the soil is prevented from adhering to the side portion 21b due to vibration during operation, and even if the soil adheres, the side portion 21b is not The operation of the tilling claw 17 and the groove cutting blade 19 is not hindered. In addition, since the tilling claw 17 has a substantially L-shaped cross-sectional shape in which the curved end curves outward as described above, scattering of the soil at the time of tilling is reduced, and the rearward of the soil at the time of tilling is reduced. Since the number of turns increases, the shortage of soil after tilling such as soil for covering soil is eliminated.

The drainage groove A can prevent the seeds sowed from being damaged by moisture, and the drainage groove A can be lowered below the tilling portion by the groove cutting blade 19 formed integrally with the tilling portion 16 when tilling. Since they are formed at the same time, the drainage groove forming device is configured with a relatively simple structure, and there is little power loss during drainage groove formation. Further, since the drain groove A is formed by the rotating blade, the drain groove A is formed relatively smoothly.

After the cultivated portion is leveled by the rear cover 23, the seeding groove disk 26 and the fertilizing groove disk 27 rotate due to the resistance of the soil at the leveled tilled portion, and the seeding groove is laid on the leveled tilled portion. B and fertilization groove C are formed simultaneously by being separated by the partition plate 33, and seeds are sown in the seeding groove B in a state of being separated by the partition plate 33, and at the same time, fertilizer is discharged into the fertilization groove C and fertilization is performed simultaneously with sowing. Then, the fertilizing groove C and the sowing groove B, which have been seeded or fertilized, are covered with the soil covering disk 31, and the covered seeding and fertilizing position is compressed by the pressure reducing roller 32.

At this time, the seeding nozzle 28a and the fertilizing nozzle 2
Although the left and right positions of 9a are relatively close to each other, seeds and fertilizer are discharged without being mixed into the sowing groove B and the fertilizing groove C by the above structure, and the seed is sowed at a position relatively close to the fertilizer. Therefore, the fertilizing effect by fertilizing is relatively high and the partition plate 3
3. In particular, since fertilization and sowing are performed separately on the lower surface front side of the partition plate 33 parallel to the fertilizing groove C and the seeding groove B, the seed and the fertilizer do not easily mix, and burning of the fertilizer does not occur.

Further, since the lowermost position of the fertilizing groove disk 27 having a smaller diameter than the seeding groove disk 26 is located lower than the lowermost position of the seeding groove disk 26 by h, it is deeper to the side of the seeding groove B. Fertilization groove C is formed, more suitable position for seeding position (obliquely below the seeding position)
The fertilizer is fertilized to increase the fertilizing effect, and the rear end of the lower end surface of the partition plate 33 is inclined upward.
Seed seeds and fertilizer are not mixed by the rear part of the plant.

The contact or proximity portion X between the seeding groove disk 26 and the fertilizing groove disk 27 is set so as to be located at substantially the same height or above the field scene. Does not adhere to the outer peripheral portions inside the disks 26 and 27, and the seeds to be sown and the fertilizer to be fertilized are not clogged. The fertilizing groove disk 27 and the seeding groove disk 26 have the above-mentioned positional relationship, and the fertilizing groove disk 27
Is smaller in diameter than the seeding groove disk 26, the fertilizing groove C is filled with soil to some extent before the soil is wrapped around the fertilizing groove disk 27 after fertilization and before the soil is covered with the soil covering disk 31.

At this time, since the seeding nozzle 28a is provided behind the seeding groove disk 26, the seeding is partially filled with soil by the fertilizer sneaking around from the rear of the fertilizing groove disk 27 as described above. Later, the seeds and fertilizer are more reliably separated. Seeding nozzle 28
a and the fertilizing nozzle 29a are provided such that the discharge end is located at a position above the field scene and close to the field scene, so that seeds at the time of sowing and fertilizer at the time of fertilization and soil to the discharge end can be spread. Adhesion (clogging) is prevented.

The discharge end of the fertilizer nozzle 29a is formed in a substantially elliptical shape to prevent the spread of fertilizer during fertilization, and a position for discharging the fertilizer as soon as possible after the formation of the fertilizer groove (the discharge end is connected to the fertilizer groove disk 27). To the center direction). On the other hand, as described above, the fertilization groove C is filled with the soil to some extent before the soil spreads after the fertilization and soil is covered by the soil covering disk 31, but since the lower end surface rear side of the partition plate 33 is inclined upward as described above, Partition plate 3
Fertilization groove C after fertilization with the lower end face of No. 3 buried in soil to some extent
Without digging again, the partition plate 33 more effectively prevents the seed and fertilizer from being mixed.

[0027]

According to the structure of the present invention constituted as described above, the seeds are sowed in the sowing groove and the fertilizing groove formed by being divided by the partition plate while being separated by the partition plate, and the fertilizer is fertilized. The fertilizer is not only fertilized at the same time as the seeding, but also the seeds and fertilizer are sown in a relatively close position, and the fertilizer effect is high and the seeds and fertilizer are separated easily by the partition plate. There is an effect that fertilizer burning does not occur without mixing.

Further, by arranging both the cropping disks so that the lowermost position of the cropping disk for the fertilizing groove is lower than the lowermost position of the cropping disk for the sowing groove, A deep fertilization groove is formed and fertilized at a more appropriate position (obliquely below the sowing position) with respect to the sowing position. In addition to the advantage that the fertilizing effect is higher, the rear end of the lower end surface of the partition plate is inclined upward. In this case, there is also an advantage that mixing of the seeds and the fertilizer by the rear portion of the partition plate is prevented.

[Brief description of the drawings]

FIG. 1 is a left side view of a seeder.

FIG. 2 is a plan view of a main part of the seeding machine.

3A and 3B are a front sectional view and a side sectional view of a tilling part.

FIG. 4 is a side view of a main part of a fertilizer sowing part.

FIGS. 5 (a), (b), and (c) are a front view, a plan view, and a rear view of a main part of a fertilizer seeding part.

[Explanation of symbols]

 16 Tilling part 26 Seeding groove disk (groove disk) 27 Fertilization groove disk (groove disk) 28a Seeding nozzle (seed part) 29a Fertilizing nozzle (fertilizer part) 33 Partition plate B seed groove C fertilizing groove

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Shuji Sato, inventor 667 Iya-cho, Oji, Higashi-Izumo-cho, Yatsuka-gun, Shimane Prefecture 1 Inside Mitsubishi Agricultural Machinery Co., Ltd. Address 1 Inside Mitsubishi Agricultural Machinery Co., Ltd.

Claims (3)

[Claims] 1. A sowing groove (B) behind a tilling part (16) for partially cultivating a sowing position in a field in a no-till state.
And a rotatably supported grooved disk (27) for rotatably supporting the fertilizing groove (C), and a seeding groove (B). Groove disk for ()
Seeding part (28a) for sowing the seed in the sowing groove (B) behind
In a seeding machine provided with a fertilizing part (29a) for discharging fertilizer in the fertilizing groove (C) behind the fertilizing groove disk (27) for the fertilizing groove (C), both the fertilizing groove disks (26), (27) ) Are arranged so as to form an inverted V-shape in front of each other in the traveling direction in plan view, and a partition plate (33) is provided between the two grooved disks (26) and (27). Seeding part (28a) on the partitioning disk (33) on the side of the forming disk (26) for the seeding groove (B)
The fertilizing section (2) is
9a) a fertilizer-seeding apparatus in a seeder positioned respectively. 2. The both ends so that the lowermost position of the production groove disk (27) for the fertilizing groove (C) is located below the lowermost position of the production groove disk (26) for the seeding groove (B). Groove disk (26),
The fertilizer / seeding apparatus in the seeder according to claim 1, wherein (27) is arranged. 3. The fertilizer-seeding apparatus in a seeder according to claim 1, wherein a rear side of a lower end surface of the partition plate (33) is inclined upward.