JPS5925497Y2 - Spreading nozzle in a spreader - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a spraying nozzle in a spreader used to spread powdery or granular materials such as chemicals and fertilizers.

Conventionally, the spraying nozzle normally used is a trumpet-shaped one with a widened tip, and when spraying with this, the amount of water sprayed from the spraying nozzle is as shown in the graph shown at the bottom of Figure 4. The distribution of the objects to be spread is unbalanced in terms of flying distance, and uniform spreading cannot be expected.

This idea was made based on the above circumstances, and by appropriately setting the shape and dimensions of the nozzle opening and the mounting position of the vane, the distribution of the material to be sprayed can be balanced in terms of flying distance, and it can be effectively An object of the present invention is to provide a spraying nozzle for a sprayer that can achieve effective spraying.

This invention will be explained in detail below based on the illustrated embodiments.

In the figure, reference numeral 1 denotes a tank for storing granular fertilizer, powdered chemicals, etc., and is supported and mounted on a pipe frame 2.

The tank 1 has a bottom surface 1a that slopes from one side to the other side.
It also has a bottom surface 1b that slopes downward toward the backrest provided on the pipe frame 2, and these bottom surfaces 1a and 1b are used as a resting place for materials to be spread such as granular fertilizers and powdered chemicals filled in the tank. It is formed to have an angle of inclination greater than the angle.

The inclined lower end 1C forms a discharge portion slightly protruding from the side of the tank 1.

This discharge section is equipped with a plate-shaped opening/closing adjustment shutter 3, which can be opened/closed and its opening degree adjusted via a control wire 4.

The pipe frame 2 is equipped with an air-on-pro driven by an engine 5, and a bellows-shaped flexible portion 8 is continuous at the lowermost end of a discharge pipe 7 that communicates with the discharge port 6a. A dispersion pipe 9 is connected to the portion 8 .

The lowermost end of the discharge pipe 7 is connected to the inclined lower end 1C of the tank 1 in a downwardly inclined manner.

Further, a dispersion nozzle 10 is attached to the distal end of the dispersion tube 9, and the dispersion nozzle 10 has a neck portion having a circular cross section, and a distal end opening 10a of the nozzle having a vertically elongated oval cross section.

Further, from the neck of the nozzle 10 to the tip opening 10 of the nozzle,
An inclined surface 10b that expands vertically toward a forms an IOC, and is narrowed in the left-right direction to approximately half the diameter of the circular cross section.

Inside the tip of the nozzle 10, two vanes lla and llb are arranged and fixed above and below the nozzle with an interval approximately corresponding to the diameter of the circular cross section.

The vanes 11a and 11b are made of metal plates such as stainless steel, and are fixed to the nozzle with screws or the like.

However, when the nozzle is molded from synthetic resin, it may be integrally inserted and fixed by a molding method.

In this case, the outer end of the lower vane 11b is slightly inclined downward, and the upper vane 11a is arranged substantially horizontally.

In addition, in this embodiment, the area B of the tip opening 10a of the nozzle 10 is
is configured so that the relationship A≦B holds.

Further, the tip opening is formed along a plane perpendicular to the longitudinal direction of the nozzle 10.

In addition, in the figure, the code|symbol 12 is a fuel tank.

In such a configuration, when the air pump 6 is operated by the engine 5, if the shutter 3 is opened appropriately, granular fertilizer or granular chemical force is released from the discharge part into the discharge pipe 7 according to the opening degree. It flows down rapidly, is carried by the air flow from the air pump 6, and is ejected to the outside via the dispersion pipe 9.

Widespread dispersion is thereby achieved.

In this case, since the nozzle 10 has the above-described configuration, uniform dispersion as seen in the upper graph of FIG. 4 can be achieved.

This suppresses diffusion to the sides, eliminates obstacles in the center, and discharges the material to be spread from the neck of the nozzle 10 in a nearly straight manner passing between the vanes 11a and llb. This is achieved because there is some diffuse emission above and below the .

In addition, by lowering the tip of the spray pipe 9 close to the ground surface with the engine stopped and the air flow from the air pump 6 cut off, the flexible portion 8 can be directed from the root toward the spray pipe 9 or in a downward position. Then, the granular fertilizer flows down from the tank 1 at a flow rate depending on the opening degree of the shutter 3, and flows out from the discharge pipe 7 via the flexible part 8 and the spray pipe 9.

This achieves row sowing of fertilizers, etc.

Note that the particle size of the material to be spread used in this device is generally 0.
．． It is 5 to 9 mm.

As described above, according to this invention, the nozzle neck has a circular cross section, the nozzle tip opening has a vertically elongated oval cross section, and the inclined surface expands vertically from the nozzle neck toward the nozzle tip opening. At the same time, two upper and lower vanes are provided on the inside of the tip of the nozzle with a gap corresponding to the diameter of the circular cross section of the neck, and the lower vane has the outer end slightly lower. Since the upper vane is arranged almost horizontally, it regulates the release of the material to be spread, and has the advantage of being able to achieve almost uniform spraying in the flying distance direction with little resistance. It can produce practical effects.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of this invention, FIG. 2 is a vertical sectional side view of the main part, FIG. 3 is an end view of the main part, and FIG. 4 is a comparison graph of the dispersion state. 1...Tank, 1a...Bottom, 1b.
...Bottom surface, 1C...Slanted lower end, 2...
...Pipe frame, 3...Shutter, 4.
... Control wire, 5 ... Engine, 6 ... Air pump, 6a ... Discharge port, 7 ... Discharge pipe, 8 ... ...Flexible part, 9
...Spraying pipe, 10...Nozzle, 10
a...Tip opening, 10 b, 10 C...
... Inclined surface, 11 a, 11 b ... vane, 12 ... fuel tank.

Claims (1)

[Scope of utility model registration request] The neck of the nozzle has a circular cross section, the tip opening of the nozzle has a vertically elongated cross section, and forms an inclined surface that expands vertically from the neck of the nozzle to the opening of the tip of the nozzle, and the inner side of the tip of the nozzle. are provided with two upper and lower vanes with a gap corresponding to the diameter of the circular cross section of the neck, the outer end of the lower vane being slightly inclined downward, and the outer end of the lower vane being slightly downwardly inclined; A spreading nozzle in a spreading machine characterized by being arranged almost horizontally.