JP3469862B2 - Spraying device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spraying device which can appropriately perform a spraying work.

[0002]

2. Description of the Related Art A conventional spraying apparatus is provided with a storage box such as a hopper for storing powdered or granular fertilizers, chemicals, and other materials to be sprayed. A feeding rotary member such as a feeding roll having a feeding blade portion,
It is rotatably arranged.

When the feeding rotary member is rotated by receiving the driving force from the drive motor, a predetermined amount of the material to be scattered is fed out by the feeding blade portion and falls from the drop opening, and is scattered on, for example, a field scene.

[0004]

However, in the above-mentioned conventional spraying apparatus, for example, when a sprayed object having a property of easily solidifying is stuck between the advancing blade portions of the payout rotary member, a predetermined amount of the sprayed object is applied. However, there is a problem in that the proper spraying work may be difficult because it is not delivered.

The present invention has been made in view of the above points, and an object of the present invention is to provide a spraying device capable of appropriately performing spraying work.

[0006]

According to a first aspect of the present invention, there is provided a spraying apparatus, wherein a storage box body for storing an object to be scattered, a rotary shaft portion rotating in the storage box body, and a circumferential direction on an outer peripheral surface of the rotary shaft portion. A feeding rotary body having a plurality of feeding blade portions formed to project at a distance from each other, and deforming the feeding blade portion of the feeding rotary body to break up the object to be scattered that is jammed between the adjacent feeding blade portions. And means for preventing it.

In this structure, the clogging prevention means can collapse the object to be scattered, which is stuck between the advancing blade portions adjacent to each other, so that a uniform amount of spraying is ensured and the spraying work is appropriately performed.

According to a second aspect of the present invention, there is provided the spraying device according to the first aspect, wherein the storage box has a drop opening that opens downward, and is located at a tip movement locus of the feeding blade of the feeding rotary member. Having a bottom plate portion having a corresponding shape, the clogging prevention means is provided to project on the bottom plate portion of the storage box body, by contacting the feeding blade portion of the feeding rotating body to deform the feeding blade portion, This is a projecting portion that breaks down the material to be scattered that is jammed between the advancing feeding blade portions that are adjacent to each other.

With this structure, the object to be scattered can be collapsed between the advancing feeding vanes adjacent to each other by the action protrusion, so that a uniform amount of spray can be surely achieved despite the simple structure. It is secured and the spraying work is performed properly.

A spraying device according to a third aspect is the spraying device according to the second aspect, wherein the bottom plate portion of the storage box is adjustable in height position.

In this structure, by adjusting the height position of the bottom plate portion of the storage box, the positional relationship between the bottom plate portion and the feeding blade portion can be easily set to an appropriate state.

According to a fourth aspect of the present invention, in the spraying apparatus according to any of the first to third aspects, the feeding blade portion of the feeding rotary member is made of an elastic material.

In this structure, the feeding blades of the feeding rotary member sway based on elasticity, so that the object to be scattered which is jammed between the adjacent feeding blades is surely broken.

[0014]

DETAILED DESCRIPTION OF THE INVENTION The configuration of an embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes an agricultural working machine, which is provided with a cultivating device 3 having a rotary portion 2 at the front part for performing a cultivating work by being pulled by a tractor (not shown). On the upper part, a pair of left and right spraying devices 5, 5 for spraying the material A to be sprayed are mounted in front of the rotary part 2. The material to be sprayed A is, for example, a powdery or granular fertilizer, a medicine, or the like.

The pair of left and right spraying devices 5 and 5 have the same structure, and as shown in FIGS. 1 and 2, a hopper 11 as a storage box for storing the material A to be sprayed.
And a horizontal rotary shaft portion 12 rotating in the hopper 11 and a rotary feed member having a plurality of payout blade portions 13 projectingly formed on the outer peripheral surface of the rotary shaft portion 12 at intervals in the circumferential direction. The feeding roll 14, a hose 16 serving as a plurality of guides for guiding the material A to be spread fed by the feeding roll 14 to a position in front of the rotary unit 2, and the material A to be fed supplied from these hoses 16 to the rotary. It is composed of a diffuser 17 or the like that diffuses toward the front of the portion 2.

As shown in FIG. 1, FIG. 2 or FIG. 3, the hopper 11 is disposed above the tiller 3 while being horizontally supported by the front and rear support frames 21 and 22, and the front and rear plate portions 2 are provided.
3, 24, left and right plate portions 25, 26, and a bottom plate portion 27 are formed in an elongated box shape that opens upward, and an upper surface opening portion can be opened and closed by an opening / closing lid 28. The front plate
23 is a window for confirming the remaining amount of the material to be scattered A in the hopper 11.
29 are formed.

As shown in FIG. 3, the bottom plate portion 27 of the hopper 11 is integrally formed by bending using, for example, a stainless steel plate or the like. Corresponding to the above, that is, an elongated curved plate shape and a substantially U-shaped cross section in a side view.
Then, the tip end portion of the feeding blade portion 13 facing downward moves along the upper surface of the bottom plate portion 27 while contacting the arc-shaped upper surface of the bottom plate portion 27.

The bottom plate 27 is connected in a suspended state to the lower ends of the front and rear plate parts 23 and 24, which are side plates facing each other with a pair of screw type height position adjusting means 31, for example. The height is adjustable.

The height position adjusting means 31 includes an adjusting nut 3
2, 32, bolts 33, tumblers 34, side plate side connecting members 35, bottom plate side connecting members 36, etc., and operating the adjusting nut 32 to move the bolts 33 together with the bottom plate side connecting members 36 in the direction shown in FIG. Thus, the bottom plate portion 27 can be moved up and down with respect to the front and rear plate portions 23 and 24, and the height position of the bottom plate portion 27 can be adjusted appropriately.

Further, as shown in FIGS. 3 and 4, at the central position in the front-rear direction which is the width direction of the bottom plate portion 27 of the hopper 11, a plurality of drop openings 38 penetrating the upper and lower surfaces are formed, The plurality of drop openings 38 are arranged side by side in the longitudinal direction of the bottom plate portion 27 with a space therebetween. The drop port
The opening amount of 38 can be adjusted steplessly by moving a shutter plate 39 that is an opening / closing plate. The shutter plate 39 can be slidably moved in the longitudinal direction along the lower surface of the bottom plate portion 27 of the hopper 11 by rotating the operation lever 40 for adjusting the spraying amount shown in FIGS.

Further, at the center position of the bottom plate portion 27 of the hopper 11 in the front-rear direction, a plurality of upwardly protruding arcuate or mountain-like shapes are provided so as to be positioned close to both sides of the drop opening 38. An action projection 41 as a clogging prevention means is integrally formed by drawing. These multiple working protrusions
For example, the 41 are arranged side by side in the longitudinal direction of the bottom plate portion 27 with a space therebetween, that is, they are intermittently provided on the upper surface of the bottom plate portion 27 so as to project upward.

Then, the action protrusion 41 provided on the bottom plate 27 of the hopper 11 has a position where the feeding blade portion 13 of the feeding roll 14 opposes the action protrusion 41 when the feeding roll 14 rotates. When passing through the upper position of the portion 41), it comes into contact with the tip portion which is the lower end portion of the feeding blade portion 13.

When the working projection 41 comes into contact with the tip of the feeding blade 13, the tip of the feeding blade 13 is moved to the working projection.
Since it is pressed by 41 and elastically deformed a little, even if the material to be scattered A is fitted between the advancing blade portions 13 and 13 which are adjacent to each other and is clogged, the material to be scattered A is not elastic to the feeding blade portion 13. It is broken into powder or granules due to shaking based on
It falls from the drop opening 38 opened at 27.

On the other hand, as shown in FIG. 3, in the feeding roll 14, an elongated tubular member 46 made of an elastic material such as rubber is fitted on the outer peripheral surface of a shaft member 45 having a substantially square cross section in side view. It is configured. And, this feeding roll 14 is
The bottom plate part of this hopper 11 at the lower position inside the hopper 11.
A rotation shaft portion 12 having a substantially circular cross section in a side view is provided, which rotates about a rotation center axis line X in the left-right horizontal direction along the longitudinal direction of 27. On the outer peripheral surface of the rotary shaft portion 12, a plurality of elongate plate-like elastically deformable, for example, eight feeding blade portions 13 having a longitudinal direction in the axial direction of the rotary shaft portion 12 are arranged at equal intervals in the circumferential direction. The protrusions are formed integrally in a radial pattern. The rotary shaft portion 12 is rotatably supported by the left and right plate portions 25 and 26, which are side plate portions of the hopper 11, via a bearing member (not shown).

At the time of the spraying work, a predetermined amount of the object A to be scattered is housed in the groove recess 13a between the advancing blades 13 and 13 adjacent to each other, and the predetermined amount of the object A to be scattered is the rotating shaft portion 12. The hose moves along the inner surface of the bottom plate portion 27 in accordance with the rotation of the feeding blade portion 13 based on the rotation of the hose and reaches the position of the drop opening 38.
Drops into 16 In this way, a predetermined amount of the material to be scattered A is delivered by the delivery roll 14 which is one rotating body.

In FIG. 2, reference numeral 51 is a drive motor as a drive source, and a sprocket 53 and a rotary shaft of the pay-out roll 14 which are one rotating body coaxially fixed to the output shaft portion 52 of the drive motor 51. As shown in FIG. 1, between the sprockets 54, which are other rotating bodies fixed coaxially to the portion 12,
An endless transmission chain 55 is wrapped around. When the drive motor 51 drives the chain 55 to run, the rotary shaft portion 12 of the pay-out roll 14 is driven to rotate, and the pay-out blades 13 are driven to rotate integrally with the rotary shaft portion 12. ing.

Next, the operation of the above embodiment will be described.

When the agricultural working machine 1 is moved by towing by a tractor (not shown), the drive motor 51 is driven by operating a switch (not shown), so that the transmission chain
55 travels, and the pay-out roll 14 is driven and rotated about the rotation center axis line X in the direction indicated by arrow B (counterclockwise in FIG. 3).

When the feeding roll 14 rotates, the feeding blade portion 13 of the feeding roll 14 causes a predetermined amount of the material A to be scattered.
The predetermined amount of the object A to be sprayed is supplied into the diffuser 17 through the hose 16 through the drop port 38, and is directed from the spray port 17a of the diffuser 17 to the front of the rotary unit 2. Be spread. The rotary unit 2 of the tiller 3 receives the driving force from the tractor and rotates to cultivate the soil on which the material A to be scattered is scattered.

Here, for example, as shown in FIG. 3, it is assumed that the object A to be scattered, which is easily solidified, fits into the groove recess 13a between the adjacent feeding blades 13 and 13 and is clogged. in this case,
When the feeding blade portion 13 of the feeding roll 14 passes over the position above the action protrusion portion 41 and comes into contact with the action protrusion portion 41, the tip end side of the feed blade portion 13 is repelled by the object to be scattered A side and slightly shakes. As a result, the object A to be scattered, which has been solidified as one lump, is broken into the original powder or granular form, falls from the drop opening 38 formed in the bottom plate portion 27, and thereafter, in the hose 16. Is supplied to the inside of the diffuser 17 through the spray port 17a of the diffuser 17.
Is diffused toward the front of the rotary unit 2.

In this way, according to the spraying device 5 of the above-mentioned one embodiment, the groove recess 13a between the advancing feed vanes 13 and 13 which are adjacent to each other by the action protrusion 41 protruding from the bottom plate 27 of the hopper 11. Since the object A to be scattered can be collapsed and dropped into the drop port 38, a uniform amount of spray can be surely ensured and the spraying work can be appropriately performed despite the simple structure. it can.

Further, since the height position adjusting means 31 is provided so that the bottom plate portion 27 of the hopper 11 can be adjusted in height position, by operating the adjusting nut 32 of the height position adjusting means 31, the hopper can be adjusted. The height position of the bottom plate portion 27 of 11 can be adjusted, so that the positional relationship between the bottom plate portion 27 and the feeding blade portion 13 can be easily set to an appropriate state.

That is, for example, the bottom plate portion 27 of the hopper 11 is
In the configuration (not shown) in which the hopper 11 is fixed to the front and rear plate portions 23 and 24 of the hopper 11, an unnecessary gap is formed between the arcuate upper surface of the bottom plate portion 27 and the feeding blade portion 13 due to dimensional errors in manufacturing. Alternatively, there is a problem that the contact force between the arcuate upper surface of the bottom plate portion 27 and the feeding blade portion 13 increases and an extra load is applied to the drive motor 51. On the other hand, in the configuration in which the height position of the bottom plate portion 27 of the hopper 11 can be adjusted, such a problem can be solved by adjusting the height position of the bottom plate portion 27 of the hopper 11 according to a dimensional error or the like. .

Further, for example, when it is not necessary to use the action protrusion 41 depending on the type of the material to be scattered A, the feeding blade portion
By setting the height position of the bottom plate 27 of the hopper 11 low so that the tip of 13 does not come into contact with the action protrusion 41, the drive motor
It is possible to prevent unnecessary load on the 51.

In the above-mentioned embodiment, the spraying device 5 is described as being mounted on the upper part of the tilling device 3, but it may be combined with another device other than the tilling device 3, or a single device. Can also be used as

Further, in any of the above-mentioned embodiments, the structure in which the action protrusion 41 of the clogging preventing means is provided at the center position in the width direction of the bottom plate portion 27 of the hopper 11 has been described. , Side portions 23, 2 of the hopper 11
You may project on 4, 25, 26. Further, the action protrusion 41 is not limited to the center position in the width direction of the bottom plate 27, and may be provided at any position on the bottom plate 27.

Further, in any of the above-mentioned embodiments, the action projection 41 of the clogging preventing means is explained as a structure which is intermittently projected on the upper surface of the bottom plate 27 of the hopper 11, but it is not shown, for example. However, it may have a configuration in which it is continuously projected on the upper surface of the bottom plate portion 27 of the hopper 11, for example, a configuration in which the bottom plate portion 27 of the hopper 11 is continuously projected substantially linearly in a portion other than the drop opening 38. Good.

Further, the clogging prevention means is not limited to the action projection 41 provided on the bottom plate portion 27 of the hopper 11, and, for example, although not shown, it is recessed on the upper surface of the bottom plate portion 27 of the hopper 11. It may be a working concave portion, and the working concave portion is jammed between the adjacent feeding blade portions 13 and 13 by returning and deforming the feeding blade portion 13 which comes into contact with the upper surface of the bottom plate portion 27 and moves in a slightly elastically deformed state. The material to be scattered A is collapsed, and the material to be scattered A is dropped from the drop port 38.

Although the pay-out roll 14 has been described as a structure that rotates about the rotation center axis X as shown in FIG. 3 in the B direction in the drawing, it may also rotate in a direction opposite to the B direction. .

[0041]

According to the first aspect of the present invention, the clogging prevention means can collapse the objects to be scattered that are clogged between the adjacent feeding vane portions, so that a uniform amount of spraying can be secured and the spraying work can be performed. It can be done properly.

According to the second aspect of the present invention, it is possible to break up the material to be scattered that is clogged between the advancing feeding blades adjacent to each other by the action protrusions. It is possible to accurately drop the object from the drop opening, and thus it is possible to reliably ensure a uniform amount of spraying and perform the spraying work properly.

According to the third aspect of the present invention, by adjusting the height position of the bottom plate portion of the storage box, the positional relationship between the bottom plate portion and the feeding blade portion can be easily set to an appropriate state.

According to the fourth aspect of the present invention, since the feeding blade portion of the feeding rotating body sways based on elasticity, it is possible to surely disintegrate the material to be scattered, which is jammed between the adjacent feeding blade portions.

[Brief description of drawings]

FIG. 1 is a side view of an agricultural working machine equipped with a spraying device according to an embodiment of the present invention.

FIG. 2 is a front view of the spraying device.

FIG. 3 is a side sectional view of the spraying device.

FIG. 4 is a plan view of a bottom plate of the spraying device.

[Explanation of symbols]

5 spraying devices 11 Hopper as a storage box 12 Rotating shaft 13 Feeding blade part 14 Feeding roll as feeding roll 27 Bottom plate 38 Drop port 41 Working protrusion as a means to prevent clogging A items to be scattered

Front page continuation (72) Inventor Kazumasa Miyamoto 5155 Shiokawa, Maruko-cho, Oka-gun, Nagano Matsuyama Co., Ltd. (56) Reference JP-A-9-98627 (JP, A) (58) Fields investigated (58) Int.Cl. ⁷ , DB name) A01C 15/00-23/04 A01M 9/00

Claims (4)

(57) [Claims] 1. A storage box body for storing a material to be scattered, a rotary shaft portion rotating in the storage box body, and a plurality of feeding blades formed on an outer peripheral surface of the rotary shaft portion at circumferentially spaced intervals. And a clogging preventing means for deforming the feeding vane portion of the feeding rotary body to collapse the object to be clogged between adjoining feeding vane portions. apparatus. 2. The storage box body has a bottom plate portion formed with a drop opening that opens downward, and has a shape corresponding to the tip movement locus of the feeding blade portion of the feeding rotary member, and the clogging preventing means comprises: Projected on the bottom plate of the storage box,
2. The projecting blade portion of the feeding rotary member is brought into contact with the feeding blade portion to deform the feeding blade portion, whereby the projecting blade portion is an action protrusion portion for collapsing the object to be scattered which is jammed between the adjacent feeding blade portions. Spraying device. 3. The spraying apparatus according to claim 2, wherein the bottom plate portion of the storage box is adjustable in height position. 4. The feeding blade portion of the feeding rotary member is formed of an elastic material.
The spraying device according to any one of 1.