JP3295569B2 - Rice sprayer-mounted drug sprayer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for spraying a chemical such as a herbicide, which is installed above a seedling planting position of a riding rice transplanter.

[0002]

2. Description of the Related Art Conventionally, a side-row fertilizer having a fertilizer spreader disposed above a planting portion of a riding rice transplanter has been known. This side-strip fertilizer spreads a frame on a planting chain case, fixes a hopper and a feeding device, extracts power from near the planting claw, and drives the feeding device through a link or the like. Was configured.

[0003]

The side-strip fertilizer as described above has a detachable hopper so that the fertilizer can be easily charged. However, the drive unit of the feeding device is fixed to the frame. I couldn't take it off. Therefore, maintenance of the drive unit and the feeding device must be performed by moving the rice transplanter main body, which is a troublesome operation.

[0004]

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. Installed above the seedling planting position of the riding rice transplanter
On the planting chain case 9
The frame 17 is arranged, and the swinging drive unit and the hopper H
And a dispensing device, a dispersing funnel, and driven by the drive unit.
The roll drive unit can be attached to and detached from the mounting frame 17
And take out power from the planting chain case 9
Then, power is transmitted to the oscillating drive unit, and the hopper H
The dispensing roll 22 is disposed in the lower opening of the
The brushes 30 are arranged on the side and the outer periphery of the feeding roll 22
The tips of the brushes 30 are brought into contact with the
Numeral 2 is configured to be capable of swinging drive about the axis, and the swing amount is changed.
This allows the amount of feed to be adjusted .

[0005]

Next, the operation will be described. The medicine dispensing unit G can be detached only by loosening the fixing bolt 19 of the mounting frame 17, and the power feeding shaft 12, the arm 13, the swing link 14, and the like from the gear box 11 at the rear end of the planting chain case 9. The drive arm 15 is oscillated, whereby the driven arm 24 of the medicine dispensing unit G is oscillated, and at the same time, the dispensing shaft 23 and the dispensing roll 22 rotate, and the fitting recesses 22b, 22b of the dispensing roll are rotated. Are dropped below the spraying funnel 20d when the feeding roll 22 rotates downward. The amount of rotation is adjusted by the swing adjustment cam 26, and the amount of feeding can be adjusted.

[0006]

Next, an embodiment will be described. FIG. 1 is an overall side view of a rice transplanter equipped with the drug spraying device of the present invention, FIG. 2 is a perspective view of a seedling mounting table equipped with the drug spraying device of the present invention, and FIG. 3 is a drive unit and drug delivery of the drug spraying device. FIG. 4 is a side sectional view of the medicine feeding unit, FIG. 5 is a perspective view of a feeding roll driving unit, FIG. 6 is a side view of the same drive transmission unit, and FIG. 7 is a perspective view of the feeding roll.

1 and 2, the entire configuration will be described. A side fertilizer B is disposed at the rear of the seat 1 of the traveling body A. The feeding device 2 of the side fertilizer B is driven by the power of an engine or a motor, and a guide hose 3 communicates with a lower part of the feeding device 2. Then, the other end of the guide hose 3 is extended to the side of the seedling planting position where the planting claws 4 enter the soil. Then, by feeding the fertilizer into the hopper 5 above the feeding device 2 and driving the feeding device 2, the fertilizer is fed from the feeding device 2, and the guide hose 3 is dropped by its own weight or by the wind from the fan. Fertilizer is sprayed on the side of the planting position through the fertilizer. Thus, by arranging the side-strip fertilizer applicator B on the traveling machine body A side, heavy fertilizer is not arranged on the planting section D side, and the weight balance is not broken.

At the rear of the traveling machine body A, a planting part D is mounted via a working machine mounting device C. The planting part D is provided with a seedling mounting table 7 on a planting mission case 6. A float 8 is arranged below, and the planting chain case 9 projects rearward from the planting transmission case 6. The center of the rotary case 10 is pivotally supported on both sides or one side of the rear part of the planting chain case 9. The seedlings 4 on the seedling mounting table 7 are cut out by rotating the rotary case 10 and planted in a field.

Above the seedling planting position where the planting claws 4 are arranged, the medicine spraying device E of the present invention is arranged. That is,
As shown in FIG. 3, a power take-off gearbox 11 is provided at the rear end of the planted chain case 9, and a power takeout shaft 12 protrudes from a side surface of the gearbox 11, and an arm 13 is attached to the power takeout shaft 12. A swing link 14 is pivotally connected to the other end of the arm 13, and the swing link 14 extends upward and is pivotally connected to a drive arm 15 at an upper end.

On the other hand, a vertical frame 17a of the mounting frame 17 is erected on the upper surface of the planting chain case 9, and a front and rear frame 17b is provided horizontally on the upper end of the vertical frame 17a, and a pivot shaft 17c is mounted on the rear end of the front and rear frame 17b. And one end of the drive arm 15 is pivotally supported. Further, the horizontal frame 17d is provided horizontally on the front and rear frames 17b, 17b, 17b arranged in parallel, and the medicine feeding unit G is fixed on the horizontal frame 17d. 19 is a fixing bolt,
17e is a mounting frame, and the medicine feeding unit G can be easily attached and detached by loosening the fixing bolt 19.

As shown in FIG. 4, the medicine dispensing unit G has a hopper H composed of a position portion of an upper case 20a and a lower case 20b, so that an open portion above the upper case 20a can be covered with a cover 20c. The lower case 20b can be fitted and fixed to the lower part of the upper case 20a, the feeding roll 22 is housed in the upper part of the lower case 20b, and the lower part of the lower case 20b is formed in a pipe shape to form a spray funnel 20d. . In the present embodiment, in one medicine feeding unit G, the lower part of one hopper H is bifurcated and the two feeding rolls 22 are arranged. The lower part of the case containing the one feeding roll 22 is bifurcated. To form two spraying funnels 20d. The branch center of the funnel is located at the seedling planting position so that the seedlings are not exposed to the chemical.

The delivery rolls 22 are fixed to both left and right sides of a delivery shaft 23, and a driven arm 24 is fixedly mounted at the center of the delivery shaft 23. As shown in FIGS. The center of the driven arm 24 is fixed to the feeding shaft 23, and one end (front end) of the driven arm 24 is
Is formed, and is disposed so as to come into contact with a contact portion 15 a formed at one end of the drive arm 15.

The other side (rear end) of the driven arm 24
Also, a contact portion 24b is provided, and a spring 25 is interposed between the contact portion 24b side and the lower case 20b to urge the contact portion 24b upward to adjust the contact portion 24b to swing. The contact portion 24a is brought into contact with the cam 26, and the contact portion 24a is brought into contact with the contact portion 15a of the drive arm 15. The swing adjusting cam 26 is formed in a circular shape, and is eccentrically fixed to a support shaft 27 supported by the lower case 20b. The other end of the support shaft 27 projects rearward from the lower case 20b to support the support shaft 27. A swing amount adjusting lever 28 is fixed to the end of the shaft 27. With this configuration, by rotating the swing amount adjusting lever 28, the swing adjusting cam 26 is rotated to change the contact angle with the contact portion 24b. Can be changed.

As shown in FIGS. 4 and 5, a semi-cylindrical feeding roll 22 is disposed below the hopper H. The width of the feeding roll 22 matches the width of the lower opening of the hopper H. As shown in FIG. 7, ribs 22a are provided on both sides of the arc portion of the roll 22 along the circumference so that the medicine can be sealed without leaking to the side.
On the outer peripheral surface of the arc portion of the feeding roll 22, a large number of fitting concave portions 22 b are provided at predetermined intervals according to the size of the medicine (granule). A concave portion 22c is formed so as to fit the feeding shaft 23, and the feeding shaft 23 is fitted into the concave portion 22c and can be fixed by the thumb screw 29, so that attachment and detachment can be easily performed.

Further, the feeding roll 22 in the lower case 20b is provided.
Attach the brush 30 before and after the bottom of the hopper H.
30 is detachably provided, and when the tips of the brushes 30 are brought into contact with the surface of the feeding roll 22 to rotate the feeding roll 22 to feed the medicine, the fitting recesses 22b
2b... Are not removed from the lower end of the hopper H.

In such a configuration, the medicine dispensing unit G can be detached only by loosening the fixing bolt 19, and maintenance can be easily performed. When the arm 13 is rotated from the gear box 11 at the rear end of the planted chain case 9 via the power take-off shaft 12, the swing link 14 swings up and down, and is pivotally supported at the upper end of the swing link 14. The drive arm 15 also moves up and down. This vertical movement causes the driven arm 2
4 is lifted upward, and at the same time, the feeding shaft 23 and the feeding roll 22 rotate, so that the medicine fitted in the fitting recesses 22b, 22b,. When rotated, it falls below the spraying funnel 20d and is sprayed near the seedling planting position.

When the drive arm 15 is lowered, the driven arm 24 is rotated by the urging force of the spring 25 so that the contact portion 24b is raised, and the rising end thereof is stopped by the swing adjusting cam 26. The swing amount is defined by the turning position of the swing adjusting cam 26, and the feeding amount can be adjusted in proportion to the turning amount of the feeding roll 22.

[0018]

As described above, the present invention has the following advantages. First, the medicine dispensing unit can be easily attached and detached, the medicine remaining on the hopper and the dispensing roll can be easily discharged, and the maintenance of the dispensing unit and the drive can be easily performed. Secondly , by merely changing the swing amount of the feeding roll, the discharge amount of the medicine from the fitting concave portion can be adjusted, and the feeding amount can be easily changed.

[Brief description of the drawings]

FIG. 1 is an overall side view of a rice transplanter equipped with a medicine spraying device of the present invention.

FIG. 2 is a perspective view of a seedling mounting table equipped with the medicine spraying device of the present invention.

FIG. 3 is a perspective view in which a driving unit and a medicine feeding unit of the medicine spraying device are separated.

FIG. 4 is a side sectional view of the medicine feeding unit.

FIG. 5 is a perspective view of a feeding roll driving unit.

FIG. 6 is a side view of the drive transmission unit.

FIG. 7 is a perspective view of a feeding roll.

[Explanation of symbols]

 D Implanting part E Drug spraying device G Drug feeding unit H Hopper 9 Planting chain case 12 Power take-out shaft 15 Drive arm 16 Support frame 17 Mounting frame 19 Fixing bolt 20 Case 22 Feeding roll 22b Fitting recess 23 Feeding shaft 24 Follower arm 26 Swing adjustment cam

──────────────────────────────────────────────────続 き Continuation of front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A01M 9/00 A01C 11/00 302 A01C 15/06

Claims (1)

(57) [Claims] Claims: 1. A riding rice transplanter is disposed above a seedling planting position.
In the chemical sprayer, the mounting hook is placed on the planting chain case 9.
The frame 17 is arranged, and the swinging drive unit and the hopper H
The feeding device, the spreading funnel 20d, and the driving unit
The moving roll drive unit is attached to and detached from the mounting frame 17.
Arrange freely and take power from the planting chain case 9
Power to the oscillating drive unit,
-H, a feeding roll 22 is arranged in the lower opening, and the lower opening
The brushes 30 are arranged on both sides of the
Bring the tips of the brushes 30 into contact with the outer circumference, and
The nozzle 22 is configured to be capable of swinging drive about an axis.
A rice transplanter-mounted drug spraying device, characterized in that the feed amount can be adjusted by changing the size of the medicine.