JPH0314405B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a scattering tube chute for a swing-type fertilizer spreader, and particularly to the shape of the chute when the spreading width is widened.

The spreading width of a swing-type spreader is based on the principle that the reach increases in proportion to the centrifugal force when discharging powdered fertilizer, and it is generally related to the length of the spreading tube. . In addition, there is a characteristic that the absolute amount of spray is sprayed at the position corresponding to the reciprocating point of the spray barrel in the apparent spray pattern, part A in Figure 5, and in order to correct this uneven scattering and improve accuracy. It is known that the tip of the spray tube is equipped with various types of collision materials.

The present invention provides a chute shape that widens the swing angle, prevents the resulting rebound scattering (f ₁ , f ₁ ' in Fig. 5), obtains a predetermined accuracy, and enables wide-spread dispersion. It is something to do.

Next, the configuration of the present invention will be explained based on the drawings.

Figure 4 shows a cross-section of a part of the main parts of the fertilizer spreader.Although not shown, it is supported at the rear of the tractor, power is transmitted from the PTO shaft to the input shaft 6, and the drive box 2
The main shaft 3 of the main shaft 3 is reciprocated. Reference numeral 4 denotes a hopper for storing powdered fertilizer, and a sub-hopper 5 that swings together with the main shaft 3 faces at the bottom.

1 is a spray cylinder connected to the water toward the rear of the sub-hopper 5.

Reference numeral 8 denotes an impact material, which is horizontally installed at an appropriate distance from the tip of the spray tube 1 at an acute angle toward the fertilizer release direction, and is a bottom plate provided at a gentle slope from the bottom of the tip of the spray tube. It is combined with the tip of. Reference numeral 11 denotes a cutout hole in the bottom plate 10, which is trapezoidal in shape, and has folded plates 13 hanging down on both sides.

Reference numeral 9 denotes a side guide plate that extends further forward than the collision member 8 with an inclination that is not wide in plan view. This inclination angle is set somewhat wider than the swing angle α, and the collision material 8
The position is set approximately at the center with respect to the length of the side guide plate 9. The lower end of this side guide plate 9 is bonded and fixed to both ends of the bottom plate 10 described above. Reference numeral 14 denotes a reinforcing edge formed by bending the upper edge of the side guide plate 9 inward, and has a fixing hole 15 at its base. Reference numeral 12 denotes a mounting portion formed horizontally at the base of the bottom plate 10, and has a fixing hole symmetrical to the fixing hole 15 described above.

Next, to explain the operation, FIG. 5 shows a scattering pattern. In the case of only a scattering cylinder (without a chute for colliding materials, etc.), the spray will be concentrated at the dotted line A for the entire area C to be sprayed. On the other hand, when the fertilizer in the form of powder and granules is provided with the collision material 8 as shown by the arrow F2 in Fig. 3, its direction is corrected and at the same time it loses its centrifugal force extremely. Distributed into parts, etc.

However, when the swing angle α is widened, it is set to 53 to 58 degrees in this embodiment, but with only the conventional collision material, f, f
Spraying rebounded in the opposite direction and was scattered onto the sprayer, tank, frame, etc., and at the same time, there was a problem that the spraying width could not be extended.

Therefore, the side guide plate 9, which has a slightly wider inclination angle than the swing angle, which is a feature of the present invention, surrounds the fertilizer partially rebounding by the collision material 8 and corrects it in the release direction. At the reciprocating point in Fig. 5, the inner side guide plate 9 obtains a strong discharge force corresponding to its absolute length, and scatters over a wide area, that is, further outside of pattern A in Fig. 5. It is something to do. Incidentally, the spreading width is approximately 8 m to 10 m in the conventional method, whereas in the present invention, the width is 14 m to 16 m.

Incidentally, the particles scattered in the F3 direction from the cutout hole 11 in FIG. 3 are almost the same as those released from the end of the spray cylinder and have the weakest emission force, so they are scattered inside the spray pattern and improve the spraying accuracy. Further, the folding plate prevents the particles from rebounding and scattering in the f ₁ and f ₁ ' directions, which occurs at the reciprocating point in FIG. 5.

With the above structure, it is possible to maintain the desired spraying accuracy, prevent the rebound scattering that is a drawback of wide-angle swinging, and obtain a significantly wider spraying width without making the sprayer barrel particularly long. As a result, the efficiency of spraying work has been improved.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a chute in which the present invention is implemented;
Figure 2 is a rear view of the chute, Figure 3 is a side sectional view,
Figure 4 is a side view of the drive unit with some of the main parts in cross section;
FIG. 5 is a schematic plan view showing the scattering pattern. 1...Scatter tube, 2...Drive box, 3...Main shaft, 4
... Hopper, 5 ... Sub-hopper, 6 ... Input shaft, 7 ... Drop hole, 8 ... Collision material, 9 ... Side guide plate, 10 ... Bottom part, 11 ... Cutting hole, 1
2, 12'...Mounting plate, 13...Folding plate, 14
... Reinforced edge, 15, 15' ... Fixing hole.

Claims (1)

[Claims] 1. In a device that spreads powdered fertilizer by reciprocating the scattering cylinder, a collision material is installed horizontally at the middle of the tip of the distribution cylinder, and the collision material is tilted in a wide shape in plan view on both sides of the collision material, and The chute shape of a rocking fertilizer spreader features a side guide plate that extends forward.