JPH047690Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to the arrangement of a hopper in a fertilization device mounted on a rice transplanter.

(b) Prior art Conventionally, a technique such as Japanese Patent Publication No. 40-6252 is known as a technique of disposing one conveying pipe in a hopper, branching the conveying pipe, and guiding it to multiple spray ports. Furthermore, a technique for connecting a hopper and a conveying pipe with a conveying hose is known as disclosed in Japanese Utility Model Application No. 56-3788.

(c) Problems to be solved by the invention In the conventional fertilizer application device of a rice transplanter, a fertilizer dispensing device and a hopper are arranged for each row of each planting device, and each hopper is filled with fertilizer. As a result, a large heavy object was placed at the rear of the rice transplanter, causing the rice transplanter's center of gravity to be at the rear, causing the front of the rice transplanter to tend to lift up.

In this invention, instead of providing a hopper for each number of rows and placing it above the planting device, the hopper is made larger and placed near the rear fender, and the weight of the fertilizer in the hopper is increased. This device prevents the center of gravity from moving backward, and is constructed by an air conveying device configured with fertilizer hoses for each number of rows from the hopper.

When the inside of each fertilizer dispensing device B is filled with fertilizer, the excess fertilizer can be returned to the upper part of the transport pipe by the return pipe.

(d) Means for solving the problem The problems to be solved by this invention are as described above.
Next, means for solving the problem will be explained.

A hopper 11 for feeding fertilizer is installed near the left and right rear fenders 7, 7 of the rice transplanter, and a fertilizer feeding device B for each number of rows is arranged above the planting device 2 at the rear of the seedling platform 1. In the fertilizer application device A, a blower device 13 for forcefully feeding the fertilizer was provided below the hopper 11, and a conveying hose 12 for conveying the fertilizer by pressure air from the blower device 13 was arranged above the seedling platform 1. Connected to the conveying pipe 15,
The conveying pipe 15 is branched to the fertilizer intake port 24 of the fertilizer feeding device B provided for each of the plurality of planting devices 2, and the terminal end of the conveying pipe 15 is connected to a return pipe 16 arranged parallel to the conveying pipe 15. The terminal end of the reducing pipe 16 is connected to the upstream side of the conveying pipe 15 via a cyclone S.

(E) Embodiment The problems to be solved by the present invention and the means for solving them are as described above.Next, the structure of the embodiment shown in the attached drawings will be explained.

Explain the structure and function of a rice transplanter.

The rice transplanter has a structure shown in FIGS. 1, 2, and 3.

That is, several seedling stands 1 are attached to the rear,
A planting device 2... and a float 3 are installed below the seedling stand 1.
... etc. are located. The seedling stand 1, the planting device 2..., the float 3..., etc. are pivotally connected to the rice transplanter main body via a support frame, and can be moved up and down. 5 is the driver's seat, 6 is the step, 7 is the rear fender, 8 is the front wheel, and 9 is the rear wheel.

Therefore, the rice transplanter runs through the rice field with front wheels 8 and rear wheels 9, and floats the seedling platform 1 on the rice field with the floats 3. It works by planting the upper seedlings row by row.

Next, the structure and operation of the fertilizer application device A of the present invention will be explained.

As shown in FIGS. 1, 2, and 3, the fertilizer applicator A has a hopper 11 mounted on one of the left and right rear fenders 7, 7 of the rice transplanter. The lower part of this hopper 11 is equipped with a blower device 13 of a fertilization device, and the blower device 13 is a rice transplanter.
Drives by extracting power from the PTO shaft. The reason why the hopper 11 is mounted on either the left or right rear fender 7, 7 is to improve the longitudinal balance of the rice transplanter.

In addition, at the lower corresponding position of the seedling stand 1 of the rice transplanter,
A fertilizer feeding device B is provided for each row of the seedling table 1. These fertilizer feeding devices B... are supported by a support frame 4 of the seedling stand 1.

One conveyance hose 12 is provided from the lower part of the hopper 11 toward the front of the seedling platform 1, and furthermore, conveyance pipes 15 are provided on the left and right sides along the seedling platform 1. This conveying pipe 15 branches downward in accordance with the number of rows of seedling stands 1, and reaches each fertilizer feeding device B.

Therefore, the blowing blades in the blowing device 13 extract the power from the rice transplanter and rotate, constantly sending pressurized air into the conveying hose 12 and the conveying pipe 15, and the hopper 11
The granular fertilizer filled inside is sent out by pressure air into the fertilizer delivery device B, and the fertilizer delivery device B performs the action of applying the fertilizer.

Note that when the fertilizer is sent to the terminal end of the conveying pipe 15, it is sent into the starting end of the return pipe 16 disposed above the conveying pipe 15, and the terminal end of the reducing pipe 16 is connected to the upper end of the conveying pipe 15. Since the cyclone S is connected to the cyclone S, only the fertilizer is returned to the upstream portion of the conveying pipe 15 via the cyclone S. The conveying pressure air is then discharged from the hole at the top of the cyclone S.

In this way, the fertilizer in the hopper 11 is sent to each fertilizer delivery device B and fertilized.

Next, I will explain the structure and function of fertilizer feeding device B...

The fertilizer feeding device B... has the structure shown in FIGS. 5, 6, 7, and 8. That is, it is composed of a cylindrical upper case 18, a bowl-shaped central case 19, and a funnel-shaped lower case 20. The upper case 18 has an upper part covered with a lid 21, and bolts 22, 22 together with the lid 21.
, the upper case 18 is attached to the upper surface of the central case 19.

The lower part of the central case 19 is secured by fasteners 23, 23 provided on the outer peripheral surface of the lower case 20.
It is designed so that it can be attached to the upper surface of the lower case 20. A fertilizer intake port 24 projects obliquely upward from the side of the central case 19.

A mounting plate 25 is provided on the upper outer peripheral surface of the lower case 20.
is attached, and the mounting plate 25 is attached to the support frame 2.
6 and fixed. Also, lower case 2
A step 20b is provided on the upper inner circumferential surface 20a of 0, and a disk-shaped lower regulating plate 27 is provided on the step 20b.
The upper regulation plate 28 is located, and these regulation plates 27, 2
8, a slightly thicker feeding plate 29 is interposed.

The upper regulating plate 28 and the lower regulating plate 27 have shapes as shown in FIGS. 9 and 11. Shaft holes 28a and 27a are provided in the center portions of the upper regulating plate 28 and the lower regulating plate 27, respectively, and further,
Openings 28b, 28b are provided.

The feeding plate 29 has a shape shown in FIG. This feeding plate 29 has a plurality of openings 29.
a is provided, and the central portion 50 of the feeding plate 29
A concave drive shaft insertion hole 31 is provided on the upper surface, and a shaft 32 is made to protrude downward from the lower surface of the central portion 50.

The upper end of a spiral wire 33 is attached to this shaft 32, and by rotating the spiral wire 33, not only can the fertilizer be sent out, but also the guide tube 43 at the bottom can be unclogged. In addition, these vertical regulation plates 2 placed on the upper surface of the lower case 20
8. The feeding plate 29 and the lower regulating plate 27 can be locked by attaching the central case 19 from above, and only the feeding plate 29 can be rotated.

Next, the drive structure of the drive shaft 30 is shown in FIGS. 5 and 6.
This will be explained based on the diagram and FIG. 12.

The upper end of the drive shaft 30 protrudes above the central case 19, and a bevel gear 31 is mounted on the upper end of the drive shaft 30. A power transmission shaft 32 is supported between the upper case 18 and the central case 19 so as to be sandwiched therebetween, and a bevel gear 33 attached to the transmission shaft 32 meshes with the bevel gear 31. , the drive shaft 30 is rotated.

This power transmission shaft 32 projects outward from the inside of the feeding device B, and the operating lever 3 is attached to the projecting portion.
4 is installed. The operating lever 34 moves up and down with respect to the rotation of a rotation arm 35 provided on the planting device 2 of the rice transplanter, and rotates the power transmission shaft 32. 36 is an interlocking rod, 37 is a planting claw, 38
39 is a planting arm, and 39 is a driven arm.

The power transmission shaft 32, operating lever 34, and interlocking rod 36 that drive the inside of the feeding device B are
It is provided independently for each fertilizer dispensing device B, and the tip of the guide tube 43 attached to the bottom of the fertilizer dispensing device B has a structure that can be moved from side to side. It is also possible to deal with errors in the number of rows and differences in the number of rows.

Therefore, the fertilizer sent above the upper regulating plate 28 inside the fertilizer dispensing device B is transferred from the opening 28b of the upper regulating plate 28 to the rotating discharging plate 2.
The fertilizer enters the opening 29a of the lower regulating plate 27 and is fed out in appropriate amounts at the same timing from the opening 27b of the lower regulating plate 27, and is applied without clogging as the spiral wire 33 rotates.

In this way, the fertilizer in the hopper 11 is fed into the fertilizer dispensing device B by the wind pressure,
Fertilizer is applied in the appropriate amount and at the right time in the fertilizer feeding device B.

(f) Effects of the invention Since the invention is constructed as described above, it has the following effects.

First, a hopper is provided for each planting device 2,
There is no need to fill the hopper with fertilizer, and only the fertilizer feeding device B, conveyance pipe 15, and return pipe 16 are required at the top of the planting device 2, so the weight of these parts is reduced and the center of gravity of the rice transplanter is lowered. This solves the problem of conventional technology, where the front of the aircraft floats up due to its position at the rear.

Second, the conveying device constituted by the blower device 13, the conveying hose 12, and the conveying pipe 15 is a device that only distributes fertilizer to each fertilizer dispensing device B, and does not dispense the fertilizer, but the dispensing is done separately. Since this is carried out using the provided accurate fertilizer dispensing device B, there is no variation in the amount of fertilizer applied to each row.

Thirdly, when the fertilizer dispensing device B is fully filled with fertilizer, the excess transported fertilizer is transferred to the transport pipe 1 again by the return pipe 16 and the cyclone S.
5, it is not necessary to set the conveyance amount of the feeding device from the hopper 11 to an accurate amount to prevent excess fertilizer from being generated, and even if excess fertilizer flows, the conveyance pipe 15 There is no possibility of clogging at the end of the pipe.

[Brief explanation of the drawing]

Figure 1 is a side view of a rice transplanter equipped with a fertilizer application device.
Figure 2 is a front view of a rice transplanter equipped with a fertilizer application device, Figure 3 is a plan view of a rice transplanter equipped with a fertilizer application device, and Figure 4 is a front view of a rice transplanter equipped with a fertilizer application device.
5 is a front sectional view of the fertilizer dispensing device, FIG. 6 is a side sectional view of the fertilizer dispensing device, FIG. 7 is a plan sectional view of the fertilizer dispensing device, and FIG. 8 is a front sectional view of the fertilizer dispensing device. Plan view of fertilizer feeding device,
FIG. 9 is a plan view of the upper regulating plate, FIG. 10 is a plan view of the feeding plate, and FIG. 11 is a plan view of the lower regulating plate.
FIG. 12 is an interlocking diagram of the fertilizer feeding device and the planting section. A... Fertilizer application device, B... Fertilizer feeding device, S
... Cyclone, 1 ... Seedling stand, 7, 7 ... Rear fender, 11 ... Hopper, 12 ... Transport hose, 15 ... Transport pipe.

Claims (1)

[Scope of utility model registration request] A hopper 11 for feeding fertilizer is installed near the left and right rear fenders 7, 7 of the rice transplanter, and a fertilizer feeding device B for each number of rows is arranged above the planting device 2 at the rear of the seedling platform 1. In the fertilizer application device A, a blower device 13 for forcefully feeding the fertilizer was provided below the hopper 11, and a conveying hose 12 for conveying the fertilizer by pressure air from the blower device 13 was arranged above the seedling platform 1. Connected to the conveying pipe 15,
The conveying pipe 15 is branched to the fertilizer intake port 24 of the fertilizer feeding device B provided for each of the plurality of planting devices 2, and the terminal end of the conveying pipe 15 is connected to a return pipe 16 arranged parallel to the conveying pipe 15. The fertilization device for a rice transplanter is characterized in that the reinforcing pipe 16 is connected to the starting end thereof, and the terminal end of the return pipe 16 is connected to the upstream side of the conveying pipe 15 via a cyclone S.