JPH07155032A - Fertilizing structure of paddy field working machine - Google Patents

Abstract

PURPOSE:To simplify supporting structures of plural fertilizer pumps and a fertilizer distribution structure to each of the fertilizer pumps, in a fertilizing structure constituted to feed a paste like fertilizer from a fertilizer tank to the plural fertilizer pumps, and to send it from each of the fertilizer pumps to each of plural fertilizer supplying units located under a plane of a paddy field, so as to send the fertilizer into a position at a prescribed depth from the plane of the paddy field. CONSTITUTION:A fertilizer is distributed and supplied to each of plural fertilizer pumps 12 through passage routes 27 from an inside of supporting pipes 23, by connecting a fertilizer hose from a fertilizer tank to the single supporting pipe 23 fixed to a fixing portion of a machine body 8, supporting the pumps 12 with the supporting pipe 23, and connecting the inside of the supporting pipe 23 with sucking ports of each of the pumps through the passage routes 27.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fertilizer structure in a paddy working machine such as a rice transplanter or a direct seeder, in which a paste-like fertilizer is fed into the paddy field as the machine progresses.

[0002]

2. Description of the Related Art In a rice transplanter which is an example of a paddy working machine, a plurality of seedling planting devices provided on the rear portion of a machine body are provided with a plurality of floats as disclosed in Japanese Utility Model Publication No. 63-49148. Pipe-shaped fertilizer nozzle (No. 1 of the above publication)
17) in the figure (corresponding to the fertilizer supply part) is fixed, the fertilizer application nozzle is extended to the position of the set depth from the rice field, and the fertilizer in paste form is fed from the rice field to the position of the set depth. Some are configured like this. In this case, a fertilizer tank (7 in FIG. 1 of the publication) is provided on the machine body side, and a plurality of fertilizers from the fertilizer tank are passed through fertilizer pipes (11, 13 in FIG. 1 of the publication). Distributing and supplying to individual fertilizer pumps (12 in FIG. 1 of the publication), and supplying fertilizer from each fertilizer pump to each fertilizer application nozzle through fertilizer hoses (14 and 16 in FIG. 1 of the publication). It is configured to do.

[0003]

DISCLOSURE OF INVENTION Problems to be Solved by the Invention In a paddy working machine having a fertilizer application structure with a plurality of fertilizer supply sections as described above, a plurality of fertilizer pumps for supplying fertilizer to each fertilizer supply section are provided. There is room for improvement in terms of simplification of the supporting structure for the plurality of fertilizer pumps and simplification of the structure for distributing and supplying the fertilizer from the fertilizer tank to each fertilizer pump.
The present invention, in a fertilizer application structure of a paddy working machine using paste-like fertilizer, simplifies the support structure for a plurality of fertilizer pumps and simplifies the structure for distributing and supplying fertilizer from a fertilizer tank to each fertilizer pump. The purpose is to.

[0004]

A feature of the present invention is that the fertilizer application structure for a paddy working machine as described above is configured as follows. In other words, a plurality of fertilizer supply units that can send paste-like fertilizer from the rice field to the position of the set depth,
A plurality of fertilizer pumps for supplying fertilizer to each of the fertilizer supply parts, and a fertilizer tank for storing paste-like fertilizer, and one support pipe fixed to the machine body fixing part,
A fertilizer hose from the fertilizer tank is connected to support a plurality of fertilizer pumps on the support pipe, and a communication passage connecting the inside of the support pipe and the suction port of each fertilizer pump is provided. Suck into the support pipe,
The fertilizer is distributed from the inside of the support pipe to each fertilizer pump through the communication passage, and the fertilizer is supplied from each fertilizer pump to each fertilizer supply unit.

[0005]

When the present invention is constructed as shown in FIG.
As shown in, the fertilizer from the fertilizer tank 10 is supplied into the support pipe 23 via the fertilizer hose 11, and the fertilizer is distributed from the inside of the support pipe 23 to the respective fertilizer pumps 12 via the communication passage 27. Then, fertilizer is supplied from each fertilizer pump 12 to each fertilizer supply unit 14. In this case, since each fertilizer pump 12 is supported by the support pipe 23 that distributes fertilizer to each fertilizer pump 12, the support pipe 23
Will also be used as a support member for the fertilizer pump 12,
A dedicated support member for the fertilizer pump 12 is unnecessary.

[0006]

INDUSTRIAL APPLICABILITY As described above, in the fertilizer application structure of the paddy working machine configured to send the paste-like fertilizer from the paddy field to the position of the set depth, the support pipe for distributing the fertilizer to each fertilizer pump is provided in the fertilizer pump. Since it also serves as a support member, a dedicated support member for the fertilizer pump becomes unnecessary, so the structure for supporting multiple fertilizer pumps and the structure for distributing and supplying fertilizer to each fertilizer pump can be simplified and the cost can be reduced. I was able to.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a link mechanism 4 is provided at the rear part of the machine body supported by the front wheels 1 and the rear wheels 2 so that the hydraulic cylinder 3 can be operated to move up and down.
Are connected to form a riding type rice transplanter, which is an example of a paddy field working machine. Seedling planting device 1 as shown in FIG. 2 and FIG.
Reference numeral 9 denotes a pair of planting cases 6 which are rotationally driven around the horizontal axis P1 of the three planting transmission cases 8 (corresponding to the machine body fixing portion).
A pair of planting claws 7 provided at both ends of the planting case 6, a seedling stand 5, a float 9 and the like form a 6-row planting type. As the planting case 6 rotates, the pair of planting claws 7 The seedlings W are taken out alternately from the seedling stand 5 and planted on the rice field S.

This riding type rice transplanter has a fertilizing structure for feeding paste-like fertilizer into the rice field S. Next, this fertilizing structure will be described. As shown in FIGS. 4 and 5, a cylindrical fertilizer pipe 14 (corresponding to a fertilizer supply unit) having an outer diameter narrower than the width of a grooved plate 13 described later is provided, and a machine body at the lower end of the fertilizer pipe 14 is provided. The rear side is cut out to form a fertilizer outlet 14a, and a guide plate 16 extending to the rear side of the machine body is fixed to the lower end of the fertilizer application pipe 14.
A connecting fitting 18 is fixed to the upper portion of the fertilizer application pipe 14.

A grooved plate 13 having a predetermined width and having a triangular shape in a side view is fixed to the float 9 corresponding to each of the six planting lines, and the guide plate 16 at the lower end of the fertilizer pipe 14 is grooved. It is placed on the extension 13a at the lower end of the plate 13, the connecting metal fitting 18 is connected to the upper part of the grooving plate 13 with the screw 17, and the fertilizer application pipe 14 is positioned within the width of the rear part of each grooving plate 13. It is connected. Fertilizer outlet 1 of each fertilizer pipe 14
A flat plate-like pressing member 15 that surrounds the rear side of the fuselage on the upper side of 4a and the left and right sides of the upper side is provided with screws 17 on each float 9.
It is fixed at.

As shown in FIGS. 2 and 3, support brackets 28 are fixed to the three planted transmission cases 8 behind the seedling stand 5, and a cylindrical stainless support is provided over each support bracket 28. The pipe 23 is erected and connected, and both ends of the support pipe 23 are closed by the support brackets 28. One stainless steel fertilizer pipe 26 is connected to the support pipe 23, and as shown in FIG. 1, a pair of fertilizer tanks 10 are supported on the left and right of the front part of the machine body. It joins at the lower part of the machine and extends toward the rear of the machine, and passes through the lower side of the seedling stand 5 and the transmission case 8 with plants as shown in FIGS. 2 and 3, and is connected to the lower end of the fertilizer pipe 26. .

Three fertilizer pumps 12 of the plunger type are fixed to the support pipe 23, and the
A book connecting pipe 27 (corresponding to a communicating passage) is connected to each of the suction ports (not shown) of the three fertilizer pumps 12, and the hose 20 from each fertilizer pump 12 is bifurcated into a pair. It is connected to the fertilizer pipe 14. In this case, as shown in FIG. 1, the fertilizer pump 12 is set at a position lower than the bottom of the fertilizer tank 10.

Due to the above structure, the height difference between the fertilizer tank 10 and the fertilizer pump 12 and the action of the fertilizer pump 12 allow fertilizer from the fertilizer tank 10 to enter the fertilizer hose 11, the fertilizer pipe 26, the support pipe 23, and the communication pipe 27. It is distributed and supplied to the three fertilizer pumps 12 via the fertilizer pumps 12, and each fertilizer pump 12 is driven as described later, and fertilizer is supplied from each fertilizer pump 12 to each fertilizer pipe 14 through the hose 20. .

As shown in FIGS. 6, 2 and 3, the support pipe 2
The operation arm 24 is swingably supported around the horizontal axis P2 of the bracket 23a fixed to the bracket 3, and the upper end of the operation arm 24 is located on the plunger 12a of the fertilizer pump 12. The operation arm 24 and the support pipe 23 support a pair of links 22 so as to be vertically swingable, and the tips of the pair of links 22 are pin-connected. A connecting member 25 is erected and connected across both support shafts (not shown) that support the planting claw 7 on the planting case 6, and the connecting member 25
The middle part of the rod and the tip of the link 22 are
Are connected by.

With the above structure, when one of the planting claws 7 takes out the seedling W from the seedling stand 5, both links 22 are in a horizontal posture. From this state, when the planting case 6 rotates counterclockwise on the plane of the drawing while the aircraft is moving to the left side of the paper surface of FIG. 2, the push-pull rod 21 is pulled toward the planting case 6 side so that both links 22 face downward. The manipulating arm 24 is rocked, and the manipulating arm 24 starts rocking to the fertilizer pump 12 side. Thereby, the plunger 12 of the fertilizer pump 12 is operated by the operation arm 24.
When a is pushed, fertilizer begins to be sent out from the fertilizer application pipe 14. Then, when one of the planting claws 7 holding the seedling W reaches the rice field S, the fertilizer is already sent out linearly from the fertilizer application pipe 14, and the seedling W near the center of the linear fertilizer.
Are planted. As described above, when the planting case 6 is rotated once and the seedling W is planted by the pair of planting claws 7, the plunger 12a of the fertilizer pump 12 is interlocked with this.
Is pushed twice and the fertilizer is sent out from the fertilizer application pipe 14 into the rice field S.

[Other Embodiment] The structure shown in FIGS. 3 and 6 may be configured as shown in FIG. As shown in FIG. 7, a square pipe-shaped support pipe 23 is provided, a flat plate-shaped mounting seat 29 is fixed at a position for supporting the fertilizer pump 12, and the support pipe 23 is provided with a connection pipe 23 b. On the other hand, the downward communication pipe 27 is connected to the suction port (not shown) of the fertilizer pump 12. As a result, the O-ring is fitted to the communication pipe 27 of the fertilizer pump 12, the communication pipe 27 is inserted into the connection poi 23b of the support pipe 23, and the fertilizer pump 12 is attached to the mounting seat 2
It is configured to be bolt-connected to 9.

In the above-described embodiment, the fertilizer pump 12 is driven by the planting case 6 which is provided with a pair of planting claws 7 and is driven to rotate, but one planting strip is planted by one planting claw 7. In the type of rice transplanter to be performed, the planting claw 7 and the link 22 may be directly connected by the push-pull rod 21. A rotary fertilizer pump (not shown)
Is equipped on the machine body side instead of on the seedling planting device 19, and a rotary type fertilizer pump is supported by a support pipe 23 fixed to the machine body side, and the fertilizer pump is driven by a dedicated motor. Good. Further, the present invention is not limited to the one including the vertically-applied fertilizing pipe 14 as shown in FIG.
The above-mentioned [Prior Art] presented in Japanese Utility Model Publication No. 63-4914
It is also applicable to a riding type rice transplanter or a walking type rice transplanter having a fertilizer application pipe 14 bent in an L-shape when viewed from the side like the structure of Japanese Patent No. 8 publication.

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

[Brief description of drawings]

[Fig. 1] Overall side view of the riding rice transplanter

[Fig. 2] Overall side view of the seedling planting device

[Figure 3] Rear view of seedling planting device

FIG. 4 is a plan view of a float equipped with a fertilizer application nozzle.

[Fig. 5] Side view near the fertilizer application nozzle

FIG. 6 is a side view showing the support and drive structure of the fertilizer pump.

FIG. 7 is a side view showing a support and drive structure of a fertilizer pump in another embodiment.

[Explanation of symbols]

 8 Airframe fixed part 10 Fertilizer tank 11 Fertilizer hose 12 Fertilizer pump 14 Fertilizer supply part 23 Support pipe 27 Communication passage S Field

Claims (1)

[Claims] 1. A plurality of fertilizer supply parts (1) capable of feeding paste-like fertilizer from a rice field (S) to a position of a set depth.
4), a plurality of fertilizer pumps (12) for supplying fertilizer to each of the fertilizer supply sections (14), and a fertilizer tank (10) for storing paste-like fertilizer, and a body fixing section (8) ) Fixed to one support pipe (2
3) In the fertilizer hose (1) from the fertilizer tank (10)
1) is connected to support the plurality of fertilizer pumps (12) on the support pipe (23), and the support pipe (2)
3) A communication passage (27) that connects the inside of the fertilizer pump (12) with the suction port of each fertilizer pump (12) is provided, and the fertilizer tank (10) is provided by the fertilizer pump (12).
Of the fertilizer is sucked into the support pipe (23), and the fertilizer is distributed from the inside of the support pipe (23) to each fertilizer pump (12) through the communication passage (27).
A fertilizer application structure for a paddy working machine configured to supply fertilizer from 2) to each fertilizer supply unit (14).