JPH052043Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a fertilization device for paddy field working machines such as rice transplanters and sowing machines.

BACKGROUND TECHNOLOGY Conventionally, as a fertilizing device for a rice transplanter, etc., there has been provided a device that fertilizes both shallow and deep layers at the same time as planting seedlings (for example, Japanese Patent Laid-Open No. 1983-1999-1).
Publication No. 154916, Publication No. 57-161319, Publication No. 161319, Publication No. 154916, Publication No. 161319
58-38224, etc.).

Problems that the invention aims to solve By the way, the amount of fertilizer applied is determined by taking into account field conditions such as soil fertility and soil quality, crop variety, weather (rainfall), etc., and in the case of top dressing, the degree of base fertilizer application, etc. It is something. Therefore, even when fertilizing shallow and deep layers at the same time, the amount and ratio of each fertilizer must satisfy these requirements. For example, when looking at rice varieties, ``Koshihikari''
For Nipponbare and Nipponbare, it is recommended to change the ratio of fertilizer application between shallow and deep layers.

In other words, experiments have been conducted in which better growth results were obtained when the ratio of shallow layer fertilizer to deep layer fertilizer was set to 2:1 for Koshihikari and 3:1 for Nipponbare. There is. Furthermore, if the field is sandy or clayey, it is necessary to change the amount of fertilizer applied in shallow layers or the amount applied in deep layers, or both.

However, in this type of conventional fertilization equipment, there is still no one that takes the above points into account and allows the amount of fertilizer applied in shallow and deep layers to be adjusted independently depending on field conditions, crop varieties, etc. Not provided.

Means for Solving the Problems Therefore, the present invention provides a paddy field working machine that simultaneously applies fertilizer to shallow and deep layers of a field using a fertilization drive device. A pump for shallow layers and a pump for deep layers that is separate from the pump for shallow layers and communicates with a deep layer fertilization nozzle, and each of the pump for shallow layers and the pump for deep layers is provided with means for adjusting the amount of fertilizer applied independently. ,
The above-mentioned problem is solved by configuring the system so that the amount of fertilizer applied in the shallow layer and the amount applied in the deep layer can be individually adjusted through the fertilizer amount adjusting means.

Operation When starting seedling planting work, the fertilization drive device is started to perform shallow and deep fertilization at the same time as seedling planting. Correspondingly, in order to independently change the amount of fertilizer applied to the shallow layer and deep layer, operate the fertilizer amount adjustment mechanism provided in the fertilizer application drive device and adjust the amount of fertilizer applied to the shallow layer and deep layer to the optimal amount respectively. do.

Embodiment The drawing shows a walking rice transplanter A with four rows. An engine 1 is mounted on the front of the rice transplanter A, swing wheels 2 for propulsion are supported on both left and right sides, and a seedling stand 3, a planting claw 4, and a seedling stand 3 are mounted on the rear of the machine. A planting section 6 consisting of a left-right drive mechanism 5 and the like is provided. 7 is a float for sliding on rice fields, and is made up of a center float 7a and side floats 7b.

Reference numeral 8 denotes a fertilizer tank, and in the illustrated example, two tanks are shown mounted above and below, but one tank may be used for both purposes. 9 is the fuel gauge, 10 is the breather pipe, 1
1 is a return pipe, 12 is a switching valve, and 13 is an indicator for deep water, which can be turned on independently by the valve.
It is now adjustable to turn it off. 14 is a drain pipe. 15 is a fertilization nozzle, consisting of a shallow fertilization nozzle 15a and a deep fertilization nozzle 15b;
Each float 7 is supported so as to be movable up and down, and can be adjusted up and down independently (fifth
(see Figure and Figure 6). 15' is a nozzle mounting bracket, and 15'a is a mounting seat.

The shallow layer fertilization nozzle 15a is a shallow layer pump 16.
In addition, the deep layer fertilization nozzle 15b is connected to a deep layer pump 17, which is configured separately from the shallow layer pump 16, through piping 18, respectively, and these shallow layer pump 16 and deep layer pump 17 A driving device (fertilizer driving device) M for the fertilizing device is configured. 16a and 17a are suction ports, 16b and 17b are discharge ports, and a is a planted seedling.

By the way, as shown in FIG. 9, the deep fertilization nozzle 15b is arranged in a spacing row behind the wheels 2 approximately in the center between the planting rows, and the shallow fertilization nozzle 15a is arranged at a position close to the side of the planted seedling a. It is located in By providing the deep fertilization nozzle 15b behind the wheel 2 approximately in the center between the planting rows and in the spacing row, the deep fertilization nozzle 15b passes through the wheel marks, and the nozzle 1
5b reduces mud resistance even though it is in a deep position,
Moreover, the number of nozzles can be halved, and the slippage of the wheel 2 can be reduced as much as possible. ,
(Cause of running out of manure, etc.)

Note that the deep layer fertilization nozzle 15b is replaced by the shallow layer fertilization nozzle 1.
It is also possible to place the seedlings in a lap shape below 5a, which allows the thick roots extending below the seedlings to absorb deep layer fertilizer, which can be expected to have a positive effect on growth, as well as at the same time as planting. For fertilization, it is possible to apply deep fertilizer to seedlings in a predetermined vicinity, and even though it is side-row fertilization, it eliminates the need to cut roots and adversely affect the growth of seedlings, which is the case when applying fertilizer with a top-dressing machine. . It is also possible to provide the deep layer fertilization nozzle 15b in front of the shallow layer fertilization nozzle 15a, so that both nozzles 15
The positional relationship between a and 15b in the front-rear direction can be freely set.

Reference numeral 19 denotes a pump transmission device, in which multistage pulleys 20a and 21a are fixed to the input shaft 20 and output shaft 21, respectively, and the pump 16, 21a is fixed to the input shaft 20 and the output shaft 21, respectively.
17 rotational speeds can be changed.
The pulley 20a fixed to the input shaft 20 is always urged toward the tension side of the belt 22 within the range of the elongated hole 24 by the bullet 23, and the belt 22 is changed by the bullet 23.
This can be easily done by removing the lock from the locking tool 25 and bringing the pulleys 20a and 21a closer together. 25a is a bearing base of the pulley 20a, and 25b is a fulcrum shaft of the bearing base 25a.

Now, the power transmitted from the input shaft 26 of the fertilization drive device B to the transmission device 30 consisting of a transmission chain 27, bevel gears 28, 29, etc. is transmitted to the input shaft 20 of the pump transmission device 19 via a propeller shaft 31 and a universal joint 32. further transmitted to the pulleys 20a and 21a.
The power is transmitted to the output shaft 21 of the pump transmission device 19 via the V-belt 22 and the V-belt 22 .

By the way, the shallow layer pump 16 and the deep layer pump 17 constituting the fertilization drive device B are each provided with a fertilizer application amount adjusting means M that can be adjusted independently, and the shallow layer fertilization is controlled via the fertilizer application amount adjusting means M. The structure is such that the fertilizer amount and deep layer fertilizer amount can be adjusted individually. In this example, the shallow layer pump 1 is replaced by chain ring replacement.
6 and the rotation speed of the deep layer pump 17 to adjust the amount (ratio) of each fertilizer application is shown.

That is, the output shaft 21 of the pump transmission 19, the input shaft 16' of the shallow layer pump 16, and the deep layer pump 1.
As shown in FIG. 2, a chain ring 33, a two-chain ring 34 which integrally connects two chain rings 34a and 34b, and a chain ring 35 are removably attached to each shaft end of the input shaft 17' of No. 7. It is attached, and the chain ring 33 and chain ring 34a
A transmission chain 36 from the output shaft 21 to the shallow layer pump 16 is spanned between them, and a transmission chain 37 from the shallow layer pump 16 to the deep layer pump 17 is spanned between the chain ring 34b and the chain ring 35. There is. Each of the chain rings 33, 34, 35 can be easily replaced with a chain ring having a different number of teeth. ,3
7 (replaced as necessary), the amount of fertilizer applied in the shallow layer and the amount applied in the deep layer can be adjusted independently.

In addition, if you want to increase or decrease the amount of fertilizer applied to both shallow and deep layers at the same time, change the V-belt 22 or use the chain ring 3.
This is possible by replacing 3 with a different number of teeth.

In the figure, 38 is a steering handle, 39 is a travel/planting clutch lever, and 40 is an auxiliary seedling stand. In FIG. 5, P indicates the wheel position and Q indicates the planted seedling position.

In the above configuration, when starting the planting work of seedlings, the fertilizing drive device B is started and the traveling/planting clutch lever 39 is operated to the clutch ON side. As a result, the power of the fertilizing drive device B is transferred from the input shaft 26 to the transmission chain 27 and the bevel gears 28, 2.
9 and further via the universal joint 32 and the propeller shaft 31 to the input shaft 2 of the pump transmission 19.
0, the pulleys 20a, 21a and V
The belt 22 connects the output shaft 2 of the pump transmission 19.
1. From the output shaft 21 to the chain ring 3
3, 34a and the transmission chain 36 to the input shaft 16' of the shallow layer pump 16 to operate the shallow layer pump 16. The signal is transmitted to the input shaft 17' and operates the pump 17 for deep water. Tanks 8 and 8 are pumped by the operation of pumps 16 and 17.
The fertilizer inside is sent to shallow layer fertilization nozzle 1 via pipe 18.
5a and the deep layer fertilization nozzle 15b side, each nozzle 15a, 15b is fed in parallel with the planting of seedlings.
from the tip of the outlet to the shallow layer of the field (underground 3 to 5).
cm) and in deep layers (10-15 cm underground) continuously.

In this way, fertilizer is applied to the shallow and deep layers of the field at the same time, so the fertilizer in the shallow layer is absorbed during the early stage of seedling growth, resulting in good seedling rooting and good initial growth.
In addition, when the growth progresses and the roots extend, fertilizer is absorbed deep into the soil, which prevents fertilizer from running out. Moreover, since the fertilizer is applied at the same time as planting, the number of times of top-dressing (bridging fertilizer) can be reduced, and the work of top-dressing under the scorching sun in the summer can be omitted, resulting in significant labor savings.

Now, in order to independently change the amount of fertilizer applied in the shallow layer and the deep layer, depending on the field conditions such as soil fertility and soil quality, and the variety of crops, etc., operate the fertilizer amount adjustment means M provided in the fertilization drive device B. Adjust shallow layer fertilization and deep layer fertilization to the optimal amounts. That is, the chain ring 34,
By replacing either one of 35 with a chain ring with a different number of teeth as appropriate (replacing transmission chains 36 and 37 as necessary), the amount of fertilizer applied in shallow layers and the amount (ratio) of fertilizer applied in deep layers can be adjusted independently. can. If it is desired to increase or decrease the amount of fertilizer applied to both the shallow layer and the deep layer, this can be done by changing the V-belt 22 or replacing the chain ring 33.

In the above-mentioned embodiment, the present invention was described as being installed in the rice transplanter A, but the present invention is not limited to the rice transplanter, but can also be applied to rice field working machines such as seeding machines.

Effects of the Invention As described above, the present invention provides a paddy field working machine that simultaneously applies fertilizer to the shallow and deep layers of a field using a fertilization drive device, which includes a shallow layer pump that communicates the fertilization drive device with a shallow layer fertilization nozzle. , consisting of a deep layer pump which is separate from the shallow layer pump and communicates with the deep layer fertilization nozzle, and each of the shallow layer pump and the deep layer pump is provided with a means for adjusting the amount of fertilizer that can be adjusted independently; It is configured so that the amount of fertilizer applied in the shallow layer and the amount applied in the deep layer can be adjusted independently through the fertilizer amount adjustment means, so it is compatible with field conditions such as soil fertility and soil quality, crop variety, weather (rainfall), etc. This has the advantage that the optimal amount of fertilizer can always be applied to both the shallow and deep layers of the field.

[Brief explanation of drawings]

Figure 1 is an overall side view of a rice transplanter equipped with the present invention, Figure 2 is a plan view of the main parts, Figure 3 is a side view of the main parts, Figure 4 is a front view of the pump transmission device, and Figure 5. 6 is a side view of the same as above, FIG. 7 is a side view of the piping structure of the fertilizer application device, FIG. 8 is a front view of the same as above, and FIG. FIG. 9 is a rear view of the same as above. In the figure, 15 is a fertilization nozzle, 15a is a shallow layer fertilization nozzle, 15b is a deep layer fertilization nozzle, 16 is a pump for shallow layers, 17 is a pump for deep layers, A is a rice transplanter, B is a fertilization drive device, and M is a fertilizer amount adjustment means. .

Claims (1)

[Scope of utility model registration request] A paddy field working machine configured to simultaneously apply fertilizer to shallow and deep layers of a field using a fertilization drive device, comprising: a shallow layer pump that communicates the fertilization drive device with a shallow layer fertilization nozzle, and a separate pump from the shallow layer pump; and a deep layer pump communicating with the deep layer fertilization nozzle, and each of the shallow layer pump and the deep layer pump is provided with a fertilizer amount adjustment means that can be adjusted independently, and the shallow layer fertilization is performed through the fertilizer amount adjusting means. A fertilization device for a paddy field working machine, characterized in that the fertilizer application amount and the deep layer fertilization amount can be individually adjusted.