JPH03201907A - Fluid fertilizer injector - Google Patents

Abstract

PURPOSE:To carry out a high speed traction using a low power tractor engine by injecting a fluid fertilizer in a tank from the point of a chisel on the lower side of plural subsoil breaking units arranged in parallel through a pump and a distributor into the soil. CONSTITUTION:From an opening part formed at the point of a chisel 22, a fluid fertilizer in a tank 3 is injected through a pump 4 and a distributor 6 in order to puff and soften the subsoil around the front of subsoil breaking units 2A and 2B and to crush the puffed and softened subsoil using the subsoil breaking units. The injection state of the fluid fertilizer can be justified corresponding to the state of the subsoil using the distributor.

Description

[Detailed Description of the Invention] [Industrial Application Fields] The present invention is capable of injecting and dispersing liquid fertilizer such as slurry into soil by being pulled by a tractor, etc., and at the same time can measure the swelling and softening of soil. This relates to a liquid fertilizer injection machine.

[Prior Art] Deep roots, such as those of asparagus, have an important role of not only absorbing nutrients and water, but also storing assimilated substances produced by the stems and leaves. Therefore, it is necessary for the root group to spread sufficiently widely, and for this purpose, the soil must be swollen and have good aeration and drainage, as well as a considerable water retention capacity, and the subsoil must be rich in fertilizer components. It is necessary to be present.

Therefore, in order to apply fertilizer to the subsoil to heat it up and expand the effective soil layer, slurry (sewage sludge, slurry mixed with livestock manure, etc.) or other liquid fertilizer is applied along the back of the subsoil crushing tool. A subsoil cultivation method is used in which the subsoil is supplied with fertilization pipes.

[Problems to be Solved by the Invention] However, in the conventional subsoil crushing machine, the subsoil is crushed by inserting a crushing tool into the subsoil and pulling it with a tractor, but since the subsoil is strong, There is a problem in that the traction resistance becomes extremely large, making traction extremely difficult.

Furthermore, in the conventional subsoil cultivation method, fertilizer is concentrated in the furrows formed by the subsoil crushing tool, resulting in a problem of poor effectiveness.

The present invention was made to solve this problem, and it is possible not only to crush and swell the subsoil and at the same time to effectively supply liquid fertilizer to a wide area of the subsoil, but also to provide traction. To provide a liquid fertilizer injector which has little resistance and can therefore be easily towed at high speed even by a tractor equipped with a small horsepower engine.

[Means for Solving the Problems] The present invention provides a structure in which a plurality of subsoil crushing tools each having a passageway opening at the tip of a chisel disposed at the lower end of a support rod extending in the vertical direction serves as a traction unit for a tractor. A tank and a pump are placed in parallel with the folding member and connected to the folding member, and the passage of each of the subsoil crushing tools and the pump are connected to each other via a distributor. This configuration is used as a means to solve the above problem.

[Operation] Liquid fertilizer is ejected from the opening formed at the tip of the chisel to swell and soften the subsoil around the front of the subsoil crusher, and then the subsoil is crushed by the subsoil crusher. At that time, the liquid fertilizer ejected from each subsoil crushing tool is uniformly distributed and ejected by the distributor,
Alternatively, the fertilizer may be intentionally distributed and ejected unevenly to make swelling and softening and fertilizer supply appropriate depending on the soil condition.

[Example code] Next, embodiments of the present invention will be described in detail with reference to the drawings.

1 and 2 show an embodiment of the present invention,
Two subsoil crushing tools 2A are provided at the rear end of the folding member l, which has a towing part 11 for a tractor at its tip.

2B are arranged side by side and fixed by bolts or the like, and a tank 3 for storing liquid fertilizer and a plunger type pump 4 are mounted on the folding member l. In addition, the subsoil crushing tool 2 has a chisel 2 attached to the lower end of the support rod 21 extending in the vertical direction.
2 protrudes forward, and as shown in FIG. 3, a passage 23 is formed inside the support rod 21 and the chisel 22, and both ends of the passage 23 are connected to the upper side surface of the support rod 21 and the chisel 22. Each chisel 22 has an opening on its top surface at its tip. Further, the suction ports of the tank 3 and the pump 4 are connected to each other by a suction hose 51, and the discharge port of the pump 4 is connected to the distributor 6 by a discharge hose 52, and the discharge side of the distributor 6 is connected to the supply hose 53a. , 53b are connected to the openings on the support rod 21 side of the passages 23, 23 of each subsoil crushing tool 2A, 2B.

In the drawing, reference numeral 71 is an output shaft for extracting a part of the power of the tractor disposed below the folding member l, and reference numeral 72 is a power transmission mechanism for transmitting the power of the output shaft 71 to the pump 4. 73 is a height-adjustable foil gauge, and 24 is an opening 2 formed at the tip of the passage 23 on the diesel tip side.
A leading blade 26 provided at 5 is a wing member disposed at the rear of the chisel 22.

To use this embodiment, as shown in FIG. 4, it is connected to the rear of a tractor 8 via a traction member 11 and liquid fertilizer is stored in a tank 3, as in the conventional subsoil crusher of this type. Subsoil crushing tool 2A.

2B is inserted into the subsoil 9, and the tractor 8 is driven while pressurizing the liquid material in the tank 3 with the pump 4 and supplying it to the subsoil crushing tools 2A and 2B via the distributor 6 at a predetermined ratio. Then, the slurry 1 supplied to the subsoil crushing tools 2A and 2B
0 passes through the passage 23 and is ejected into the subsoil 9 from the opening 25 formed at the tip of the chisel 22, swelling and softening the surrounding area. Therefore, it is possible to easily crush the subsoil, and the pulling resistance of the subsoil crushing tools 2A, 2B by the tractor 8 is extremely small, so that the subsoil crushing tools are easily pulled and the grooves 91 can be formed at high speed. It becomes possible. Also, slurry 10
The subsoil crushing tools 2A and 2B pass behind the subsoil 9 which is ejected to perform a crushing action, so that the liquid fertilizer 10 is thoroughly mixed with the subsoil 9 and spread over a wide area. In particular, in this embodiment, the leading blade 24 provided in the opening 25 formed at the tip of the support rod 21 of the subsoil crushing tools 2A, 2B facilitates the advancement, and as the soil advances, the soil flows into the opening 25. prevent entry into the Also.

A wing member 26 disposed behind the chisel 22 prevents the liquid fertilizer 10 spouted into the subsoil 9 from flowing into the grooves 91 formed by the chisel 22 and concentrating, and diffuses it.

5 to 8 show embodiments of the distributor 6, and these distributors 6 are designed to separate the left and right subsoil crushers 2A, 2B based on the difference in resistance caused by the difference in soil quality between the parts through which they pass. It has a mechanism that eliminates the difference in the ejection flow rate of liquid fertilizer and enables ejection of a uniform flow rate. That is, the one shown in FIGS. 5 and 6 is of a rotating type, and a supply port 64a is disposed at the center of a bottom wall 62 of a cylindrical case 61 having a distribution chamber 65, and the supply port 64a is arranged in a peripheral wall 63 facing each other. Two discharge ports 64b and 65c are formed, and a transparent window 66 extends over a half circumference on the outer circumferential surface, and a shielding wall 6 extends over the remaining half circumference.
A rotor 68 having a number 7 formed thereon is fitted and installed in the distribution chamber 65. Then, the discharge hose 52 is connected to the supply port 64a, and the two supply hoses 53a and 53b are connected to the discharge ports 64b and 64c, respectively. By rotating in one direction or reciprocating using a driving source, the transparent window 66 of the rotor 68 opens the discharge port 63b,
63c are alternately communicated with the distribution chamber 65 and the shielding wall 6
7 shuts off the other, so that liquid fertilizer is alternately sent to the subsoil crushing tools 2A and 2B.

Therefore, the difference in the ejection flow rate of the two liquid fertilizers due to the difference in resistance due to the difference in soil quality in the portions through which the subsoil crushing tools 2A and 2B pass is eliminated, making it possible to eject a uniform flow rate.

In addition, when the soil is homogeneous to the extent that the soil resistance acting on the left and right subsoil crushing tools 2A, 2B is the same, the transparent window 66 of the rotor 68 is inserted into the discharge ports 63b, 63c as shown in FIGS. 5 and 6. It is sufficient to fix it at a position that corresponds to each half.

Further, FIG. 7 shows an embodiment of the piston-shaped distributor 6, which includes a supply port 64a and two discharge ports 64b, 64.
The flow direction of the liquid fertilizer is switched by moving the piston 611 disposed at the branch point with c to the one discharge port 64b side or the other discharge port 64c side. The piston 611 is formed to be shorter than the diameter of the supply port 64b, and when placed at the center position, the same flow rate of liquid fertilizer is supplied to the discharge ports 65b and 64c.

Furthermore, in the case shown in FIG. 8, spool valves 612b and 612c are arranged at the two discharge ports 64b and 64c, respectively, and these spool valves 612b and 6
The back side of 12c communicates with opposite outlets 64c and 64b through pilot pipes 613b and 613c, respectively. Therefore, for example, if the resistance of the opening 25 of the sub-soil crushing device 2A connected to one discharge port 64b is greater than the resistance of the opening 25 of the other sub-soil crushing device 2B, the As the pressure increases, the spool valve 612c moves to the left in FIG. 8, reducing the opening area of the discharge port 64c, and the same flow rate of liquid fertilizer is transferred to the subsoil crushing device 2A.
, 2B through the openings 25', 25. This embodiment differs from the embodiments shown in FIGS. 5 to 7 above in that the flow rates of the subsoil crushing devices 2A and 2B are automatically and continuously changed according to the hardness and softness of the actual soil through which they pass. It has the advantage of being able to

[Effects of the Invention] The present invention having the above-described configuration allows water to be pumped into a tank through a pump and a distributor from a passage that opens at the tip of a chisel placed at the lower end of a plurality of subsoil crushing tools installed in parallel. Liquid fertilizer is injected into the soil while being towed by a tractor. At the same time as the subsoil is crushed by traction, the liquid fertilizer is distributed uniformly or intentionally unevenly to effectively supply it over a wide area of the subsoil. At the same time, it has many effects, such as expanding and softening the soil, and allowing even a tractor equipped with a small horsepower engine with low traction resistance to perform towing work easily and at high speed.

[Brief explanation of drawings]

Figures 1 to 4 show an embodiment of the present invention,
Fig. 1 is a side view, Fig. 2 is a rear view, Fig. 3 is an enlarged longitudinal cross-sectional view showing the supracentric crushing tool, Fig. 4 is an explanatory diagram showing the state of use,
FIG. 5 is a longitudinal sectional view showing one embodiment of a distributor used in the present invention. FIG. 6 is a sectional view taken along the line A--A in FIG. 5, and FIGS. 7 and 8 are schematic views of different embodiments of the distributor. I...Folding member, 2A, 2B... Center crushing tool, 3
...Tank, 4...Pump, 6...Distributor,
21... Support rod, 22... Chisel, 23... Passage. Figure 1 t Figure 2 Figure 3 Figure 4 Figure 7 Figure 8

Claims (1)

[Claims] A plurality of sub-soil crushing tools each having a passage opening at the tip of a chisel disposed at the lower end of a support rod extending in the vertical direction are arranged in parallel on a girder member having a pulling section for a tractor, and A liquid fertilizer injector characterized in that a tank and a pump connected to each other are mounted on the member, and the passages of each of the subsoil crushing tools and the pump are connected to each other via a distributor.