JPH0613633Y2 - Fertilizer application - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a fertilizer application device mounted on, for example, a seedling planting device of a rice transplanter, and more specifically, a hopper for storing powdered and granular fertilizer, and With a feeding mechanism for feeding fertilizer,
The present invention relates to a fertilizer application device configured to discharge fertilizer from the feeding mechanism to a groove formed in a field by a grooving device via a fertilizer flow-down path in a flow-down cylinder.

[Conventional technology]

In the conventional fertilizer applicator, the flow-down cylinder is formed of a hollow pipe, and the fertilizer fed out from the feed-out mechanism is configured so that the powder state and the grain state are naturally integrated and guided down (for example, (See Japanese Utility Model Publication No. 61-92234).

[Problems to be solved by the invention] However, when the fertilizer application is attached to a rice transplanter and fertilization is performed simultaneously with the rice planting work in a paddy field, when powder and granules are mixed and flowed down as in the conventional structure, Fine powdered fertilizer is extremely light in weight and easily adheres to the peripheral wall in the highly humid flow-down cylinder. Moreover, powdery fertilizer accumulates on the adhered fertilizer, and finally, in the flow-down cylinder. Sometimes got stuck. Therefore, if such a clogging phenomenon occurs, the fertilizing effect is not exerted, and in order to prevent it, the inside of the flow-down cylinder must be frequently cleaned, which is a troublesome task.

Therefore, as a method for solving the above-mentioned problem, for example, the actual development 62
As disclosed in Japanese Patent Laid-Open No. 49909, it was considered that a powder filtering part was provided in a part of the upper part of the flow-down cylinder and the filtered powdery fertilizer was stored in a storage case. Even with such granular fertilizer, powdery portions were generated due to contact between the inner wall or granular fertilizers while flowing down in the pipe, so that the expected effect could not be obtained. Moreover, in the case of the above configuration, fertilizer is accumulated in the storage case during a short period of work, and there is an adverse effect that the removal work must be performed frequently.

The present invention reduces the work load for maintenance,
It is an object of the present invention to provide a fertilizer application device that can obtain a good use condition for a long period of time.

[Means for solving problems]

A feature of the present invention is that, in the fertilizer application apparatus having the above-described configuration, a porous flow-down surface that allows only powdery fertilizer to leak down is provided over substantially the entire length of the flow-down cylinder, and the fertilizer is provided above the flow-down surface. A downflow passage is provided, and a powder downflow passage is formed below the downflow surface and below the fertilizer downflow passage in a rearward direction of the machine body. A lower end of the powder downflow passage is formed from a lower end opening of the fertilizer downflow passage. Is also open to the inside of the grooving device on the rear side in the direction of travel of the machine body, and its actions and effects are as follows.

[Action]

The granular fertilizer in the hopper is fed out from the feeding mechanism, and when flowing down in the downflow cylinder, only the powdery fertilizer leaks downward from the lower flow surface, and the unleaked granular fertilizer is on the lower flow surface. Is guided down in the fertilizer downflow passage, and is discharged into the groove formed by the grooving device.

Since the powdered fertilizer passes through the powder downflow passage, even if fine powdered fertilizer adheres to the inner wall of the downflow passage, the powdery material occupying most of the fertilizer is the fertilizer above the lower flow surface. Since it is guided in the flow-down passage, it is efficiently discharged without depositing. Moreover, since the flow-down surface is provided over substantially the entire length of the flow-down cylinder, fine powder generated during the flow-down guidance of the powdered fertilizer also leaks down toward the flow-down passage.

In addition, the powdered fertilizer is released to the field from the lower end opened to the inside of the groove making device through the powder flow passage, and it does not accumulate in a short period of time as compared with the case where the powder is stored separately, and it is more frequent. The removal work becomes unnecessary, and almost the entire amount of the fertilizer fed out by the feeding mechanism by the predetermined amount is supplied to the field, and the error in the fertilizer application amount becomes small.

[Effect of device]

Therefore, according to the present invention, the powdered fertilizer mixed in the fertilizer is positively separated and guided downward through another passage,
The adherence of the powder does not hinder the flow of the granular fertilizer, which enables a good fertilizing effect for a long period of time.
While suppressing the amount of fertilizer application with a small error, the frequency of maintenance work such as in-cylinder cleaning work can be significantly reduced, and the work load can be reduced.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

In Fig. 3, the seedling planting device (A) is attached to the rear part of the riding type vehicle body on the left side outside the figure so as to be able to move up and down through the link mechanism (13), and the fertilizer application device (B) according to the present invention is attached. The rear of the mounted rice transplanter is shown.

The seedling planting device (A) is provided with a seedling planting mechanism (10) in a planting transmission case (9) extending rearward from the planting case (8), and this seedling planting mechanism (10 ) Is provided with a seedling stand (1) that reciprocally drives in the lateral direction of the aircraft in conjunction with the rocking drive of (3), and the grounding float (2) pivotally attached to the lower part of the planting transmission case (9) and intermittent fertilizer in the field. The fertilizer application device (B) for supplying and dropping is provided.

The seedling planting mechanism (10) connects a swinging arm (12) to a planting transmission case (9) so as to be swingable, and a planting arm (11) at the tip of the swinging arm (12). With planted arm (11)
It is configured by providing a planting claw (19) at the tip, the tip of this planting claw (19) circulates between the take-out port formed in the lower end of the seedling stand (1) and the field scene, A part of the mat-like seedling laid on the upper surface of the seedling stand (1) can be cut off and intermittently planted in a field.

The fertilizer application device (B) is a hopper (3) for storing powdered fertilizer.
And a delivery mechanism (4) for delivering fertilizer from this hopper, and the delivery mechanism (4) through the flow-down barrel (5)
The fertilizer is configured to be dropped and released into the groove on the field surface formed by the grooving device (6) attached to the lower end of (5).

As shown in FIG. 1, the feeding mechanism (4) is a drive rotary shaft rotatably supported by a feeding case (7) about a horizontal axis.
A substantially cylindrical delivery roll (15) is fixed to (14), and the drive rotation shaft (14) is rotationally driven via a rod (16) in accordance with the drive of the seedling planting mechanism (10). As a result, the feeding roll (15) is reciprocally rotated at a constant angle, and the fertilizer filled in the feeding recess (17) recessed in the outer periphery of the feeding roll (15) drops downward. A pair of brushes (18) slidably contacting the outer periphery of the payout roll (15),
(18) is configured to regulate the amount of fertilizer feeding, and this brush
The springs (20) and (20) press the springs (18) and (18) inward in the radial direction of the feeding roll (15). The brush (18),
(18) uses a large-diameter brush piece (18a) to improve the durability of the portion that is in sliding contact with both sides of the recess (17) in the axial direction, and wear of the tip of the brush (18) due to the sliding contact action. It prevents the leakage of fertilizer.

As shown in FIG. 1 and FIG. 2, a porous lower flow surface (2) that allows only powdered fertilizer to leak down over substantially the entire length of the downflow tube (5).
1) is provided, and a fertilizer downflow passage (S ₁ ) for guiding down the granular fertilizer is formed on the upper side of the downflow surface (21), and the fertilizer downflow passage (S ₁ ) below the downflow surface (21) is formed. A powder flow-down passage (S ₂ ) for guiding the powdered fertilizer is formed on the lower rear side in the traveling direction of ₁ ).

The lower end of the powder flow-down passage (S ₂ ) is open to the inside of the grooving device (6) behind the lower end opening of the fertilizer flow-down passage (S ₁ ) in the machine traveling direction. Then, the powder flow passage (S
₂ ) The upper end of ( ₂ ) has a lid that can be closed and opened (22)
Is provided so that cleaning work can be performed from the outside.

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the present invention is not limited to the structure of the accompanying drawings by the entry.

[Brief description of drawings]

The drawings show an embodiment of the fertilizer application apparatus according to the present invention. Fig. 1 is a vertical sectional side view, Fig. 2 is a sectional view taken along line II-II of Fig. 1, and Fig. 3 is a side view of a rear part of a rice transplanter. (3) …… hopper, (4) …… feeding mechanism, (5) …… downflow cylinder, (21) …… downflow surface, (S ₁ ) …… fertilizer downflow passage, (S ₂ ).
...... Powder flow passage.

Claims (1)

[Scope of utility model registration request] 1. A hopper (3) for storing powdered and granular fertilizer, and a feeding mechanism (4) for feeding fertilizer from this hopper (3),
A fertilizer applicator configured to discharge fertilizer from the feeding mechanism (4) through a fertilizer downflow passage (S ₁ ) in a downflow tube (5) into a groove formed in a field by a grooving device (6). Along the substantially entire length of the flow-down cylinder (5), a porous flow-down surface (21) for leaking only powdered fertilizer is provided, and the fertilizer flow-down passage (S) is provided above the flow-down surface (21). ₁ ) is provided, and the powder flow-down passage (S ₂ ) is below the flow-down surface (21) and below the fertilizer flow-down passage (S ₁ ) at the rear side in the machine traveling direction.
And a lower end of the powder flow-down passage (S ₂ ) is opened to the inside of the grooving device (6) behind the lower end of the fertilizer flow-down passage (S ₁ ) in the machine traveling direction. .