JPH08242619A - Fertilizing seeder - Google Patents

Abstract

PURPOSE: To provide a fertilizing seeder designed to uniformize the respective spouting forces from widely disposed plural jet pipes. CONSTITUTION: Plural jet pipes are disposed side by side on a traveling vehicle over a range wider than the lateral width of the vehicle and plural, feeders 13 for a fertilizer or seeds in a tank 14 are mounted on the vehicle over a range nearly equal to its lateral width, and plural conveying tubes 24 extended from the base ends on an air chamber 23 are so arranged, via the lower parts of the respective feeders 13, as to reach the respective jet pipes. In this case, the cross-sectional area of the inner hole at the entrance or an intermediate point of the tube 24 with shorter conveying path is smaller than that of the tube 24 with longer conveying path.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used in a direct flooding machine, a fertilizer sprayer, and the like.

[0002]

2. Description of the Related Art A fertilizer applicator is equipped with a plurality of feeding devices for feeding seeds and fertilizer in a tank to a traveling vehicle body, a plurality of jet tubes arranged side by side on the traveling vehicle body, and having a plurality of air chambers as base ends. The transfer pipes of the above are provided so as to reach under the respective feeding devices and reach the corresponding jet pipes, and the seeds and fertilizers fed from the respective feeding devices are blown out from the jet pipes by being sent by air in the transfer pipes. Is configured. To improve efficiency and the benefit of storage, the widths of the multiple injection tubes are made significantly wider than the width of the traveling vehicle body, and the width of the feeding device is configured to be approximately the same width as the traveling vehicle body. ing. That is, the jet tube is attached to the beam, and this beam is
This is because it is relatively easy to adopt a configuration for folding or removing within the same width as the traveling vehicle body, and it is difficult for the one feeding device to be attached or detached or folded.

[0003]

Therefore, the transfer pipe reaching the outer injection pipe has a longer transfer path than the transfer pipe reaching the inner injection pipe. Here, for mass production, if each transfer pipe is configured to have the same size, the outer jet pipe has a significantly larger jet output than the inner jet pipe due to the difference in air resistance due to the difference in the length of the path. descend. As a result, if this is used in a direct watering machine, the depth of seeds blown into the mud by the inner and outer jets, that is, the seeding depth may be different and uneven growth of rice may occur. However, when used in a fertilizer sprayer, there is a risk that the spraying width of the fertilizer will differ between the spray pipes, which may interfere with the growth of the crop.

[0004]

In order to solve the above-mentioned problems, the present invention has a plurality of injection pipes 34 arranged side by side on the traveling vehicle body 1 with a width wider than the width thereof, and A plurality of feeding devices 13 for feeding seeds and the like are attached to the traveling vehicle body 1 with a width substantially the same as the width thereof, and a plurality of transfer pipes 24, 29, 28, 2 having the air chamber 23 as a base end.
7 is provided so as to reach under the respective feeding devices 13 and reach the respective jet pipes 34, and the cross-sectional area of the inlet of the transfer pipes 24, 29, 28, 27 having a short transfer route or the inner hole on the way is the transfer route. The fertilizer sowing machine is smaller than those of the long transfer pipes 24, 29, 28 and 27.

[0005]

The transfer pipes 24, 29, 28, and 27 having a short transfer path and a small air resistance in the middle of the transfer pipe 24, 29, 28, and 27 have a long transfer path and a large air resistance in the cross-sectional area of the inner hole at the inlet or in the middle. It is made smaller than that of 29, 28, 27, and the wind velocity discharged from each of the injection pipes 34 is made substantially uniform. Therefore, the seeds, fertilizers, etc. fed out by the respective feeding devices 13 are blown out from the air chamber 23 and carried by the air flowing in the respective transfer pipes 24, 29, 28, 27, and are almost discharged from the respective jet pipes 23. It is blown out together with air at the same flow rate and is inserted into mud at almost the same depth (seed) or sprayed in the field in the same area.

[0006]

As described above, according to the present invention, the plurality of injection pipes 30 are arranged wider than the lateral width of the traveling vehicle body 1 to perform the work with high efficiency. Even though the transfer paths of the transfer pipes 24, 29, 28, 27 for feeding fertilizers and the like have long and short differences, the speed of the seeds and fertilizers blown out with the air from the respective jet pipes 34 becomes substantially uniform. There is a feature that work accuracy such as sowing and fertilization is improved.

[0007]

Embodiments of the present invention will be described below. FIG.
As shown in FIG. 2 and FIG. 2, the seeding device 2 is mounted on the traveling vehicle body 1 to form a submerged direct seeder. The traveling vehicle body 1 has a pair of front wheels 4, 4 and rear wheels 5, 5 mounted on a machine base 3, respectively, and these are rotated by the power of an engine 6 in the center to rotate and advance on a paddy field in a paddy field. It is made of. A column 7 extends upward from a rear portion of the machine base 3, and a pair of upper and lower parallel links 9 and 9 each having a hitch 8 attached to a rear end thereof are rotatably attached thereto. A hydraulic cylinder 10 is attached to the machine base 3, and a projecting end of a piston rod extending obliquely upward from the hydraulic cylinder 10 is connected to an upper link 9 and a single arm 11 and the parallel links 9 and 9 are formed by retracting the piston rod. The rear end swings up and down, and the hitch 8 moves up and down while maintaining the same posture.

The seeding device 2 is constructed as follows. The mounting plate 12 projects rearward from the upper ends of the columns 7.
.. are arranged side by side on the mounting plate 12, and the width thereof is slightly wider than the width of the rear wheels 5, 5. The horizontally long tank 14 is the feeding device 13, 13
It is fixed on the top. The tank 14 is partitioned by a wall in the front-rear direction, and substantially the respective feeding devices 1 are separated.
There are 6 tanks corresponding to 3, 13 ... Figure 5
As described above, each feeding device 13 has a groove 15 on the cylindrical surface.
A roller 15 having a, 15a, ... Is provided, which is intermittently rotated in the counterclockwise direction by the engine 6 to feed the seeds in the tank 14 downward. That is, machine base 3
When the shaft 16 protruding rearward from the arm rotates the arm 17,
The rod 18 swings the lever 19, the shaft 20 intermittently rotates counterclockwise by a one-way clutch, and the belt 21 transmits the rotation to the shaft 22 of the roller 15.

The cylindrical air chamber 23 is provided with a feeding device 13,
It is arranged horizontally in front of 13 ... The front ends of the six first transfer pipes 24 are attached thereto, and the respective feeding devices 1
It extends below 3 (Fig. 5). And then
The seeds delivered by the la 15 enter the middle of the first transfer pipe 24 and are sent later by the air blown out from the air chamber 23.

A work hitch 25 is attached to the hitch 8,
The mounting frame 26 extends from now on. Six third transfer pipes 28a, 28a, 28b, 28b, 28c, 28c, each provided with two fourth transfer pipes 27, 27,
The fourth transfer pipes 27, 27 ... Are fixed side by side at equal intervals (FIG. 4) to the mounting frame 26. Inner first
The transfer pipes 24, 24 and the third transfer pipes 28a, 28a are flexible second transfer pipes 29a, 29a, and the outer first transfer pipe 2
4, 24 and the third transfer pipes 28c, 28c are the second transfer pipes 29.
At c and 29c, the remaining first transfer pipes 24 and 24 and the third transfer pipes 28b and 28b are connected by the second transfer pipes 29b and 29b. The third transfer pipes 28b and 28c may be provided with a joint 44 at the lateral end position of the traveling vehicle body 1 so that the outside can be folded.

Six floats 30, 30 gliding on a mud surface
Are arranged below the mounting frame 26 at equal intervals. Six support legs 31, 31, ... Extend downward from the third transfer pipes 28c, 28c (FIG. 3), and the rear end of the float 30 is attached to the lower end of the arm 32 extending rearward and downward (FIG. 3). 1), its front end is supported by a waist-folding type link 33. Flow at both ends
The distance between the toes 30, 30 is significantly wider than the width of the traveling vehicle body 1. A pair of injection pipes 34, 34 are mounted downward on both sides of each of the floats 30, 30, ... And the lower ends of the fourth transfer pipes 27, 27 ...

The transmission shaft 35 is mounted on the mounting frame 26 in the front-rear direction, and the rotation of the engine 6 is transmitted by the propeller shaft 36. A blower 37 is mounted beside it, and a wheel 39 fixed to the impeller shaft 38 and a wheel 40 of the transmission shaft 35.
The belt 41 is wrapped around the belt. Flexible hose 42
Both ends of are attached to the outlet of the blower 37 and the inlet of the air chamber 23, and the air pressurized by the blower 37 is sent to the air chamber 23.

As shown in FIG. 5, a ring 43 is fixed to the tip of the inner first transfer pipe 24, and the substantial cross-sectional area of the inner hole is larger than the cross-sectional area of the inner hole of the outermost first transfer pipe 24. Is also getting smaller. Although not shown, the intermediate first transfer pipe 24
Also attach the ring. The inner diameter of the ring is slightly larger than the inner diameter of the ring 43. That is, each of the first transfer pipes 24, 24 ...
When the same amount of air is blown from the same, the first transfer pipe 24, the second transfer pipe 29, the third transfer pipe 28 and the fourth transfer pipe 24.
The transfer path reaching the injection pipe 34 through the transfer pipe 27 is
Since it gradually becomes longer toward the outer side, the jetting force (jetting speed) in the outer jet pipe 34 becomes smaller than that in the inner one due to the resistance in the path. Therefore, the inner diameter of the ring is changed so that the ejection force in each of the ejection pipes 34, 34 ... Is within a predetermined range.
Attached to the transfer pipes 24, 24 ..., The amount of air blown into them from the air chamber 23 is adjusted.

The ring 43 can be provided in the middle of the transfer path, such as the rear end of the first transfer tube 24. As a result of the experiment, even if the structure in which the air sent through the single first transfer pipe 24 is discharged from the two side-by-side jet pipes 34, 34 as shown in the figure, the jets in the left and right jet pipes 34, 34 are ejected. The difference in force had no problem in practical use. It is possible to change the injection output from the injection pipes 34, 34 ... According to the hardness of the mud so that the seeding depth does not change even if the hardness changes. That is, as shown in FIG. 6, the adjusting wheel 39 has split pulleys 39a and 39a.
a), and these two are brought close to each other by a spring (not shown). The resistance plate 45 is provided at the tip of the arm 45a so as to slide on the mud surface while swinging around the shaft 46. When the mud is hard, it floats up and rocks upward, and when it is soft, it sinks. It is designed to swing downward. A tension roller 47 contacting the band 41 from below is attached to the end of an arm 49 that swings around a shaft 48, and an arm 45a and an arm 49.
Are connected by a rod 50. If the mud is hard, the tension roller 47 is pushed up by the resistance plate 45, the split pulleys 39a, 39a are opened, the pitch circle of the adjusting wheel 39 becomes small in diameter, and the rotation of the impeller shaft 38 increases. The wind force of the air blower 37 increases, the jetting force from the jet pipes 43, 43 increases, and even if the mud is hard, the seeds are blown to a predetermined depth. On the contrary, when mud comes to a soft place,
The resistance plate 45 goes down, the tension roller 47 goes down, the band 41 is loosened, and the split pulleys 39a, 39a come close to each other.
The pitch circle 9 has a large diameter, the ejection force of the injection pipes 43, 43 ... Is reduced, the force of blowing seeds into the soft mud is weakened, and the depth is automatically adjusted within a predetermined range. .

When the present invention is applied to the fertilizer sprayer and the like, the injection pipe 3 is not provided with the floats 30, 30 ...
The third transfer pipes 28a, 28,
It can be directly attached to b and 28c. A quadrilateral beam having a hollow cross section can be used as the third transfer pipe.

[Brief description of drawings]

FIG. 1 is a side view of a seeder according to the present invention.

FIG. 2 is a plan view thereof.

FIG. 3 is an enlarged rear view thereof.

FIG. 4 is a development view thereof.

FIG. 5 is a cut side view of a part thereof.

FIG. 6 is a partial perspective view of the improved type.

[Explanation of symbols]

 1 Traveling Vehicle 13 Feeding Device 14 Tank 23 Air Chamber 24 First Transfer Pipe 27 Fourth Transfer Pipe 28 Third Transfer Pipe 29 Second Transfer Pipe 34 Jet Pipe

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mitsuhiro Horio 1-40, Nisshin-cho, Omiya-shi, Saitama 2 Within the Institute for the Promotion of Biological Specified Industrial Technology (72) Inventor Kenji Iwanaga 1-chome, Yakura, Tobe, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd.

Claims (1)

[Claims] 1. A plurality of injection pipes 34 are arranged side by side on the traveling vehicle body 1 with a width wider than the width thereof, and a plurality of feeding devices 13 for delivering fertilizer, seeds, etc. in the tank 14 are provided on the traveling vehicle body 1.
A plurality of transfer pipes 24, 29, 28, 27 with the air chamber 23 as a base end.
Are provided so as to reach the respective jet pipes 34 under the respective feeding devices 13, and the transfer pipes 2 having a short transfer path are provided.
A fertilizer sowing machine in which the cross-sectional area of the inlet of 4, 29, 28, 27 or the inner hole in the middle is provided smaller than that of the transfer pipes 24, 29, 28, 27 having a long transfer path.