JPH0433706Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a piping structure of a fertilizer tank in a fertilizer application machine such as a dedicated fertilizer application machine, a fertilizer application rice transplanter, or a fertilizer application seeding machine.

[Problems to be solved by the prior art and the invention] Generally, some fertilizer application machines of this type have fertilizer tanks arranged on both the left and right sides of the machine body, but in this case, parts such as the engine located in the center of the machine body are To prevent this from getting in the way, the piping routes from both fertilizer tanks to the fertilizer pump are connected so that the pipes from each fertilizer tank facing inward to the machine are joined at a position that is biased toward either the left or right fertilizer tank, and then It is conceivable to construct it using a hose path that is piped to the fertilizer pump. However, in this case, since the distances from the biased merging position to each fertilizer tank are different, fertilizer consumption from the fertilizer tank closer to the merging position is inevitably faster than that from the far side. Even if there is fertilizer left in the fertilizer tank on the side, the fertilizer tank on the closer side will be empty, and air will be sucked in from there, causing uneven fertilization, and in some cases, fertilizer will be supplied from the fertilizer tank on the far side. This has become a problem because of the drawbacks such as the inability to effectively apply the remaining fertilizer.

[Means for solving the problem] In view of the above-mentioned circumstances, the present invention was devised for the purpose of providing a piping structure for a fertilizer tank in a fertilizer applicator that takes these considerations into account. The piping route from the fertilizer tanks arranged on the left and right to the fertilizer pump is configured using a hose route from each fertilizer tank facing inward to the machine body, which joins at a biased position on either the left or right side and connects to the fertilizer pump. At the same time, the communication position of each fertilizer tank with the hose path is set so that those on the side of the fertilizer tank that is far from the biased merging position are close to the merging position, and those on the side of the fertilizer tank that is close to the merging position are farther from the merging position. It is characterized by being offset.

With this configuration, the present invention makes it possible to make the fertilizer consumption as uniform as possible in both fertilizer tanks even if the confluence position of the piping routes from the left and right fertilizer tanks is biased to one side. It has been made possible.

[Example] Next, an example of the present invention will be described based on the drawings. In the drawing, 1 is a traveling body of a riding type fertilizing rice transplanter, and the traveling body 1 has a body 1 at the rear.
A planting work part 4 that performs the planting operation of the planting seedlings placed on the seedling platform 3 in synchronization with the running speed of the plant is provided so as to be movable up and down by an elevating link mechanism 5. However, a fertilizer nozzle 6 is provided opposite to the side of the planting claw 2, and a fertilizer tank 9 on the front side, which will be described later, is fed by driving a fertilizer pump 8 on the rear side provided below the driver's seat 7. , 9a is applied to a predetermined depth of the field.

The fertilizer tanks 9, 9a are located on both left and right sides of the front part of the step section 10 extending from the driver's seat 7 section, and have connecting stays 11a, 10a connected to both left and right ends of the bumper 11 and the side edges of the step section 10. The hoses 12 and 12a extending from the bottoms of the fertilizer tanks 9 and 9a are respectively piped in a substantially horizontal state and facing inward into the machine. A hose 12 from one fertilizer tank 9 (the one on the right in the embodiment) is connected to one end of a large-diameter joint hose 14 that is inserted through an insertion hole 13b provided in an engine frame 13a to avoid the engine 13. connected. The other end of the joint hose 14 is bent upward, and a hose 12a from the other fertilizer tank 9a is connected to the high end, and a suction hose 15 is connected to the other end of the joint hose 14. By connecting the front end portion here, the confluence position of the hose paths from both fertilizer tanks 9 and 9a is shifted to the left side of the machine. Furthermore, this suction hose 15 is piped so as to reach the sub-tank 16 at the rear of the machine body along the lower surface of the step section 10, and in this way, the piping route is formed by a hose path from the fertilizer tank 9 to the fertilizer pump 18. is formed. And reduction gear part 1
As the fertilizer pump 18 is driven by power transmission from the fertilizer pump 18 , the fertilizer (paste fertilizer in the embodiment) supplied to the sub-tank 16 is discharged to the discharge hose 19 side, and reaches the aforementioned fertilization nozzle 6 via the detection sensor 20 . From here, the fields are fertilized.

Fertilizer tanks 9 arranged on the left and right sides of the aircraft like this,
9a is different from L ₁ and L 2 in distance from the confluence position, that is, the connection position of the suction hose 15, but the distance between each fertilizer tank 9, 9a and the hose 12, 12 is different from L 1 and L ₂ .
The connection position with a is that the fertilizer tank 9 on the right side far from the suction hose 15 is closer to the suction hose 15 by an amount A from the center of the tank, and the fertilizer tank 9 on the side closer to the suction hose 15 is
The one a is provided at a position offset from the center of the tank by an amount A far away from the suction hose 15, so that the suction hose 1
5 to hoses 12, 12a of fertilizer tanks 9, 9a
The distances L ₃ and L ₄ to the communication port between the fertilizer tanks 9 and 9a and the suction hose 15 are set so that the difference is smaller than the distances L ₁ and L 2 between the fertilizer tanks 9 and 9a and the suction hose 15 by the sum of their deviations, that is, _2A . is set to .

In addition, in the figure, 21 and 22 are joint hoses 1
4, a drain hose provided in each of the sub-tanks 16; 23, a breather provided in the fertilizer tanks 9, 9a; 24, a remaining fuel gauge; and 25, a bonnet that covers the engine 13;
The holder 24 is detachable from the fertilizer tank 9, 9a.
It is provided in the upper part (a) so that its vertical position can be adjusted freely, so that the detection position can be freely set. Here, 24b is a float and 24c is an E-ring.

In the embodiment of the present invention constructed as described above, the seedling planting operation in the working section is timed to coincide with the running of the machine body, and at the same time, fertilizer is discharged from the fertilizer nozzle 6 by driving the fertilizer pump 18.

In this way, in the present invention, the fertilizer pump 18
The fertilizer application work is performed by driving the fertilizer tanks 9 and 9a, and the amount of fertilizer consumed in the fertilizer tanks 9 and 9a can be made as similar as possible at this time. That is,
Both fertilizer tanks 9, 9a have hoses 12, 12a,
It will be connected to the fertilizer pump 18 via a hose path using a suction hose 15, but the suction hose 15 is biased toward the left fertilizer tank 9a to avoid the engine 13 in the center of the machine. The pipes are installed in a closed state. Therefore, the joining position of the hose paths from both fertilizer tanks 9 and 9a will be biased to the left. However, in this invention,
In response to this bias, fertilizer tanks 9, 9
The fertilizer tank 9 (the one on the right) whose communication position with the hoses 12 and 12a of a is far from the merging position is close to the suction hose 15, and the one that is close to the suction hose 15 (the one on the left) is connected to the suction hose 15. They are each located at a position offset from the center of the tank by a distance A so as to be farther away from the hose 15. Therefore, in reality, the amount of deviation of the fertilizer tanks 9, 9a is reduced by the amount of deviation, that is, the distance 2A in the embodiment, and the distance L ₁ from the merging position is reduced.
L ₂ is substantially in a state closer to uniform arrangement than the distances L ₃ and L ₄ , where the difference is shorter by a distance of 2A.
For this reason, the amount of fertilizer consumed in both fertilizer tanks 9 and 9a will be consumed almost equally, and fertilization will continue with the fertilizer tank 9 on the side closer to the merging position empty, and as a result, This effectively prevents uneven fertilizer application from occurring due to a decrease in the amount of fertilizer supplied to the sub-tank and a change in the amount of fertilizer discharged from the fertilizer pump to the fertilizer hose corresponding to each fertilization row.

Moreover, as in the embodiment, since the deviation amount of the communication position from the merging position is the same as the distance A,
The fertilizer tanks 9 and 9a, which are the same on the left and right sides, can be installed in opposite directions. Therefore, it is possible to install only one type of fertilizer tank instead of two types, which reduces the number of parts and improves inventory management. This has the effect of making it easier.

Furthermore, since the joint hose 15 installed between the fertilizer tank 9a on the far side and the merging position has a large diameter, the flow resistance of the fertilizer is reduced even if the distance from the fertilizer tank 9a on the far side to the merging position is long. This will further contribute to equalizing consumption.

In addition, the remaining amount gauge 24 is connected to the fertilizer tank 9, 9a.
Since it is detachable from the tank, cleaning and inspection of the tank can be carried out with the fuel gauge 24 removed and there are no obstructions, improving work efficiency. However, the detection position of the remaining amount gauge 24 can be arbitrarily set by changing the insertion depth, so the optimum detection position can be set depending on the size of the field, the type of fertilizer, etc. It's convenient to be able to do that.

[Function and Effect] In summary, since the present invention is constructed as described above, in the hose path leading from both the left and right fertilizer tanks to the fertilizer pump, the joining position from both fertilizer tanks is biased to either the left or the right. Even if the communication position between each fertilizer tank and the hose path is on the side of the fertilizer tank far from the deviated merging position, the one on the side of the fertilizer tank that is far from the deviated merging position will be deviated to be closer to the merging position, and the one on the side of the fertilizer tank closer to the merging position will be It is deviated away from the confluence position. Therefore, in reality, the deviation state is eliminated by the total amount of deviation at the communication position of each fertilizer tank, resulting in a state that is closer to an even distribution, and therefore, the amount of fertilizer consumed in the left and right fertilizer tanks can be reduced. Therefore, it is possible to effectively prevent the fertilizer tank near the merging position from becoming empty and causing uneven fertilization.

[Brief explanation of the drawing]

The drawings show one embodiment of the piping structure of the fertilizer tank in the fertilizer application machine according to the present invention, in which Fig. 1 is a schematic side view of the fertilization rice transplanter, Fig. 2 is a schematic plan view of the same, and Fig. 3 is a schematic side view of the fertilization rice transplanter. 4 is a partially cutaway side view of the fertilizer tank, FIG. 5 is a front view of the fertilizer tank, and FIG. 6 is a partially cutaway front view of the remaining amount gauge. In the figure, 1 is the traveling machine body, 6 is the fertilizer nozzle, 9, 9
a is a fertilizer tank, 12, 12a, 14, 15 are piping routes, and 18 is a fertilizer pump.

Claims (1)

[Scope of utility model registration request] The piping route from the fertilizer tanks placed on the left and right sides of the machine to the fertilizer pump was created by using a hose route from each fertilizer tank facing inward to the machine, merging at a biased position on either the left or right side and leading to the fertilizer pump. In addition, the communication position of each fertilizer tank with the hose path is such that those on the side of the fertilizer tank far from the biased merging position are close to the merging position, and those on the side of the fertilizer tank closer to the merging position are farther from the merging position. A piping structure of a fertilizer tank in a fertilizer applicator, which is characterized by being offset from each other.