JPH03247210A - Fertilization device - Google Patents

Abstract

PURPOSE:To facilitate detachment of a planting part and improve workability of the title device by each providing a main part of fertilizing device, fertilizing nozzle and operation lever of changeover valve in a specific state. CONSTITUTION:A main part of fertilizing device D such as a tank 11 for feeding a fluid fertilizer or pump 15 are constituted as a unit and arranged in the rear of a seedling carrying table 6 and nearly intermediate part in the width direction of a planting part. A fertilizing nozzle 16 is connected to the discharge side of the pump 15 and operation lever 17a of changeover valve 17 is provided on the rear side of the seedling carrying table and at a position opposite to a driving seat 5.

Description

[Detailed Description of the Invention] Industrial Field of Application The present invention relates to a fertilization device that applies liquid fertilizer in side rows at the same time as seedling planting. This invention relates to a fertilization device that is located behind the stand and has only a switching valve that selectively stops fertilization for each row located opposite the driver's seat.

Conventional technology and problems to be solved Conventionally, as a fertilization device that applies fertilizer at the same time as planting seedlings, a granular fertilizer applicator attached to a position behind a seedling platform of a planting section connected to the rear of a riding rice transplanter has already been known. It is available and is in practical use. However, these granular fertilizer applicators have multiple tanks that store one granular fertilizer arranged across the seedling stand (the main parts of the fertilizer applicator, such as the tank, are placed above each row, and In this case, the left and right tanks have different shapes), and when replenishing fertilizer, it was necessary to be careful not to upset the left-right balance of the planting area. In other words, if there is variation in the amount of storage in each tank, the left-right balance will be disrupted and the planting depths on the left and right will be different, resulting in floating seedlings and lodging seedlings (on the shallow planting side), which will result in poor planting accuracy and Article.

The more you plant it, the more extreme it becomes.

By the way, if a single tank is installed at the center of the planting area in the width direction, this inconvenience can be solved, but unlike liquid fertilizer, granular solid fertilizer has difficulty in being smoothly dispensed, and the flow from the tank to the discharge port is difficult. Since this has the fatal drawback that it is easy for granular fertilizer to accumulate or become clogged during the process, it is structurally difficult to smoothly distribute and supply granular fertilizer from the tank to each discharge port via piping that branches on both the left and right sides. This is technically difficult due to various restrictions such as weight and cost.

On the other hand, a riding rice transplanter equipped with a tank, pump, etc. for applying liquid fertilizer on the main machine (traveling body) side and a fertilizer nozzle installed on the planting part side is known as a side-row fertilizer application machine for paste fertilizer. However, since the pump on the machine side and the fertilization nozzle on the planting part side are connected by a connecting hose, the fertilization parts are distributed to various parts of the machine body, and the piping tends to be long and complicated. When attaching and detaching the planting part to the plant, it was necessary to disconnect and connect the intermediate part of the connecting hose each time.

Means for Solving the Problems Therefore, the present invention arranges the main parts of the fertilization device, such as a tank and pump for applying liquid fertilizer, behind the seedling stand in the planting section, and on the side of each float for sliding on the rice field. The above is achieved by connecting the provided fertilization nozzle to the discharge side of the pump, and by providing an operating lever for a switching valve for selectively stopping fertilization for each row at a position facing the driver's seat on the back side of the seedling stand. It is an object of the present invention to provide a fertilization device which solves the problems described above and also allows a valve switching operation to be easily performed from the driver's seat side with a single touch when fertilization is stopped.

Operation The power of the pump is input from the rotating part in the planting drive case to the transmission device by a chain drive, and then the speed is changed by the transmission device and transmitted to the pump, thereby discharging the liquid fertilizer ( Paste-like or liquid fertilizer) is distributed via the indicator to the fertilizing nozzle section provided on each float side, and is fertilized in side strips into the soil near the planted seedlings.

Embodiment The structure of the present invention will be explained with reference to an embodiment shown in the drawings. An engine 4 is mounted on the front part of a body frame 3 supported by front wheels 1 and rear wheels 2, and a driver's seat 5 is mounted on the rear part to constitute the main machine (traveling machine body) A of the riding rice transplanter. Behind the is a seedling stand 6 with a high front and low back, a rotary planting rod 7,
A planting part B consisting of a planting drive case 8.8a, 8b, a float 9, etc. is mounted so as to be able to rise and fall freely via an elevating link 10, and the power on the machine side is freely transmitted from a PTO shaft (not shown). The power is transmitted to the planting section B via the shaft C to drive each planting section, thereby configuring a six-row riding rice transplanter.

And fertilization equipment such as tank 11 and pump 15 for applying liquid fertilizer! The main part of ID is constructed in a unit shape.
The main part is disposed at the rear of the seedling stand 6 and approximately in the middle of the planting part B in the width direction. That is, the left and right planting drive cases 8
A tank 11 is supported and fixed to a stay 13 which is vertically erected from a and 8b in a V-shape from the front, and is located at the middle part in the width direction of the planting part B, and is vertically adjustable. Fertilization pump 1 has a sub-tank 15a via a pipe 14 and is composed of a large number of screw pumps 15b corresponding to the number of planting rows.
5, and each screw pump 15b is arranged in an annular shape on the same circumference with the suction side facing the sub-tank 15a.

! 6 is a fertilizing nozzle attached to the side of each float 9. Reference numeral 17 denotes a switching valve for switching between a fertilization work state and a fertilization stop state (or a nozzle cleaning state).Switching of the valve 17 can be performed selectively for each row by a switching operation and a rotating operation of 8-17a. It has become. This switching valve 17 is provided integrally with an indicator (fertilizer wave detection sensor) i at a position facing the driver's seat 5 on the back side of the seedling platform 6.

In the illustrated example, the switching valve 17 is connected to the seedling stand support stay 6d.
It is removably attached to one side of the body via a mounting bolt (not shown) or the like.

The discharge side of each of the screw pumps 15b and the indicator i are connected through a discharge hose 18, and the fertilizer in the tank +1 is fed to the indicator i by driving the pump 15, and the fertilizer fed under pressure from the pump 15 is transferred by rotating the lever 17a. By switching the valve 17 by operation, supply is supplied to the nozzle 16 side via the discharge hose 18a, or via the return hose 20 to the tank 11 (
Alternatively, the water is recycled to the sub-tank 11a). Further, a transmission @19 having a main shift lever 19a and an auxiliary shift lever 19b is disposed above the central drive case 8, and a drive shaft sprocket 20 protruding from one side of the central drive case 8 and a transmission @19 are disposed above the central drive case 8. A transmission chain 22 is attached to the input shaft sprocket 21, and a transmission chain 25 is attached to the output shaft sprocket 23 of the transmission 2119 and the input shaft sprocket 24 of the pump 15, respectively, to transfer the power taken out from the central drive case 8. Gearbox M] 9 to drive the pump 15. Although not shown in the figure, a cover is attached to the chain transmission section for safety and to prevent mud from adhering to the tank 11. A remaining power sensor S is installed inside, and the power is displayed on the panel in front of the driver's seat. Portrait
The power may be transmitted by a belt method in addition to the chain transmission method.

By the way, the tank 11, pump 15 and transmission 21
The pump 15. Indicators i etc. can be easily replaced depending on the number of planted rows.

Reference numeral 28 denotes a row stopping lever for stopping the planting of seedlings in a specific row as necessary.
It is installed in a position close to 7.

Note that the tank 11 may be installed biased toward the seedling platform 6 to the extent that it does not interfere with the seedling platform 6 due to the front-to-back balance of the planting section B. In this embodiment, the tank 11 is
However, a plurality of tanks 11 may be arranged near the middle part in the width direction of the planting section B. FIG. Three tanks 11' are arranged in parallel at the same height via the installation stay 23.
The bottom side of the tank is integrally connected with the communication via '30, and the tank 1! .

The configuration of each part other than this is substantially the same as that of this embodiment. In this case, the bottom side of each tank is connected, so the liquid level in each tank 11' is kept constant, so when replenishing fertilizer or stopping the row, the amount of fertilizer supplied to the left and right tanks may differ, or the amount of fertilizer Even if the remaining amounts of the tanks 11 and 11 do not match, the liquid level heights of the tanks 11 are equalized in a short time, so that the left-right balance of the planting part B is always maintained well.

In the above configuration, mat seedlings (not shown) are placed on the seedling stand 6.
When the seedlings are placed on the seedling stand 6 and the liquid fertilizer is placed in the tank 1 and the planting operation begins, the seedlings are scraped off one by one with the planting rod 7 and continuously planted on the field surface. Attached. In addition, along with the above-mentioned planting work, the power of the planting part B is transferred from the rotating part in the central drive case 8 to the transmission device 19 by a chino transmission.
is input, the speed is changed by the transmission IS, and the pump +
5, the fertilizer stored in the tank 11 is distributed to the fertilizing nozzle 16 provided on each float 9 side via the discharge hose 18, indicator i, and discharge hose 18a, and is distributed into the soil near the planted seedlings. Fertilization is applied in lateral rows.

By the way, when stopping fertilization only for specific rows during planting work 1
For example, in the actual work of ridge planting, planting (and fertilization) of a specific row (double row planting at the time of final planting) is stopped (row stopping) due to row alignment in the process just before the final planting. ), and all the rows are planted in the final tying process, but at the time of tying down the rows, it is necessary to operate the row tying lever 28 and also operating the operating lever +7a of the corresponding switching valve 17 to the fertilization stop side. Yes (when the switching valve 17 is switched to the fertilization stop side, the fertilizer does not flow to the nozzle side but returns to the tank 11 via the return hose 20), at this time, the switching valve 17
Since the operating lever 17a thereof is provided at a position facing the driver's seat 5 on the back side of the seedling platform 6, the operator can operate the lever of the switching valve 17 by extending his hand from the driver's seat 5 side without getting off the main machine. This allows the process to be performed easily and quickly with one touch, greatly improving work efficiency.

On the other hand, the main parts of the fertilization equipment HD, such as the tank 11 and the pump 15, are arranged at the rear of the seedling stand 6 and approximately in the widthwise middle part of the planting section B, resulting in an ideal arrangement in terms of balance. Moreover, the left and right balance of the planting fllH will not be disrupted by fertilizer supplementation, and therefore the left and right planting depths will always be at the desired uniformity.
Since the seedlings are maintained at a certain depth, the accuracy of planting the seedlings is further improved. In addition, since the pump 15 is located directly below the tank 1, the piping length is short, and the flow of fertilizer is extremely smooth. Moreover, the time it takes for the fertilizer to reach the nozzle tip after work starts is shortened. As a result, work efficiency is further improved. Furthermore, the degree of freedom in the piping layout is increased, and the overall length can be shortened as much as possible, so the phenomenon of fertilizer dripping when the aircraft rotates can be greatly reduced.

In addition, when attaching and detaching the planting section B to one mA, there is no need to disconnect or connect the discharge hose 18, 18a, etc. each time, so the troublesome work when attaching and detaching the planting section B is eliminated, and the fertilizer Only one tank is required for replenishment, which reduces the burden on the operator. Incidentally, since seedlings are supplied to the seedling table 6 from the driver's seat 5 side, fertilizing equipment such as the tank 11 does not interfere with the supply of seedlings.

Effects of the Invention As described above, the present invention arranges the main parts of the fertilization device such as the tank and pump for applying liquid fertilizer at the rear of the seedling stand in the planting section, and the side of each float for sliding on the field. The fertilization nozzle provided in the seedling table is connected to the discharge side of the pump, and the control lever for the switching valve for selectively stopping fertilization for each row is provided on the rear side of the seedling stand at a position facing the driver's seat. When attaching and detaching the planting section to the machine (this machine), there is no need to disconnect or connect piping such as a discharge hose each time, making it easy to attach and detach the planting section, and also to reduce the need to connect the planting section to the tank. It is easy to supply fertilizer, and the flow of fertilizer to each nozzle is smooth. Also, only the control lever of the switching valve is facing the driver's seat, so when planting in the ridge, it is possible to plant seedlings only in specific rows. The lever operation of the switching valve can be easily performed from the driver's seat side with a single touch in response to stopping the shoots, etc., further improving work efficiency.

[Brief explanation of drawings]

Fig. 1 is an overall side view of a rice transplanter equipped with the present invention, Fig. 2 is a rear view of the fertilization device, Fig. 3 is a side view of the main parts of the fertilization device, and Fig. 4 is a rice transplanter equipped with multiple tanks arranged in parallel. FIG. 3 is a rear view of the fertilization device. 5... Driver's seat, 6... Seedling stand, 7... Planting rod, 8
, 8a, 8b... Planting drive case, 9... Float, +1. II'...Tank, 15...Pump,
16... Fertilizer nozzle, 17... Switching valve, 17a
...Switching valve operation lever, B...planting section, D.
...Fertilizer application equipment.

Claims (1)

[Claims] The main parts of the fertilization equipment, such as the tank and pump for applying liquid fertilizer, are placed behind the seedling stand in the planting section, and the fertilization nozzles provided on each float side for sliding on the rice field are communicated and connected to the discharge side of the pump. In addition, the fertilizer application device is characterized in that an operating lever for a switching valve for selectively stopping fertilization for each row is provided at a position facing the driver's seat on the back side of the seedling platform.