JP5329353B2 - Spraying device - Google Patents

Description

  The present invention relates to a spraying device that can appropriately prevent the occurrence of a bridging phenomenon of an object to be sprayed.

  Conventionally, for example, a spraying device described in Patent Document 1 is known.

  As shown in FIG. 6, this conventional spraying device is reciprocatingly rotated about a container 1 in which an object A is stored, and a vertical rotation center axis X disposed in the container 1. The stirrer 2 that stirs the object A to be sprinkled while the sprinkler sprinkles the sprinkled object A discharged from the discharge port 3 of the container 1 while reciprocating with the stirrer 2 (not shown). )).

Japanese Patent Laying-Open No. 2005-270039 (FIG. 2)

  However, in the above-described conventional spraying device, depending on the type of the material to be sprayed A, for example, when the material to be sprayed A is relatively hardened powder or rice bran, as shown in FIG. There is a risk that the bridging phenomenon of the spatter A will occur.

  This invention is made | formed in view of such a point, and it aims at providing the spraying apparatus which can prevent appropriately generation | occurrence | production of the bridge | bridging phenomenon of a to-be-sprayed object.

  The sprinkler according to claim 1 is a container that contains the object to be spread, and agitator that is disposed in the container and that stirs the object while reciprocating around a rotation center axis in the vertical direction. And a bridge prevention body that has one end attached to the container and the other end attached to the stirrer, and prevents the occurrence of a bridging phenomenon of the object to be scattered in the container.

  The spraying device according to claim 2 is disposed in a container in which the object to be sprayed is stored, and is disposed in the container, and is spaced apart in a circumferential direction around a rotation center axis in the vertical direction, A plurality of stirrers that stir the object to be sprinkled while reciprocating around the rotation center axis, and one end side is attached to the container, and the other end is attached to the stirrer. And a plurality of anti-bridging bodies that prevent the occurrence of the bridging phenomenon of the object.

  A spraying device according to a third aspect is the spraying device according to the first or second aspect, wherein the bridge preventing body is constituted by a longitudinal member having flexibility.

  According to the first aspect of the present invention, since the one end side is attached to the container and the other end side is attached to the stirring body, and the bridge prevention body for preventing the bridging phenomenon of the object to be scattered in the container is provided, The occurrence of the bridging phenomenon can be prevented appropriately.

  According to the second aspect of the present invention, since the one end side is attached to the container and the other end side is attached to the stirring body, the bridge body includes a plurality of bridge prevention bodies that prevent the occurrence of the bridging phenomenon of the object to be dispersed in the container. It is possible to appropriately prevent the bridging phenomenon of the spatter.

  According to the invention which concerns on Claim 3, since the bridge | bridging prevention body is comprised by the elongate member which has flexibility, generation | occurrence | production of the bridge | bridging phenomenon of a to-be-sprayed object can be prevented appropriately and effectively.

It is a schematic side view of the spraying device concerning one embodiment of the present invention. It is a partial schematic plan view of a dispersing device same as the above. It is a partial schematic sectional drawing of a dispersing device same as the above. It is a side view which shows the image of a movement of the bridge | bridging prevention body of a dispersion apparatus same as the above. It is a top view which shows the image of a motion of a bridge prevention body same as the above. It is a partial schematic sectional drawing of the conventional spreading | diffusion apparatus.

  An embodiment of the present invention will be described with reference to the drawings.

  In FIG. 1, 11 is a spraying device, and this spraying device 11 is connected to the rear part of a tractor (not shown), which is a traveling vehicle, for example, and is moving in the forward direction (traveling direction) by moving the tractor. This is a spout-type spreader that spreads an object to be spread A such as a thing or a powdery substance on a field. The material A to be sprayed is fertilizer, seeds, drugs, or the like, such as powder or rice bran.

  As shown in FIG. 1, the spraying device 11 includes a machine body 12 connected to a three-point link hitch portion (worker lifting support device) at the rear of the tractor.

  The airframe 12 has a three-point connecting portion 13 that is a tractor connecting portion, and the three-point connecting portion 13 is constituted by a mast portion 14 and a lower arm portion 15. The machine body 12 has a shaft holding portion 16, and the input shaft 17 in the front-rear direction is rotatably held by the shaft holding portion 16. The input shaft 17 is connected to the PTO shaft of the tractor via power transmission means (illustrated).

  Further, the machine body 12 has a shaft holding portion 18, and the shaft holding portion 18 rotatably holds a turning shaft 21 that is a vertical driving shaft. The rotating shaft 21 is connected to the input shaft 17 through power transmission means 26 constituted by a yoke 22, a flyhole 23, a first gear 24, a second gear 25, and the like.

  When the input shaft 17 rotates, the power from the input shaft 17 is transmitted to the rotating shaft 21 by the power transmission means 26. As a result, the rotating shaft 21 moves up and down through the axis of the rotating shaft 21. A reciprocating rotation is performed with a reciprocating rotation angle α set in advance around a rotation center axis X of the direction. The reciprocating rotation angle α is, for example, 30 degrees to 60 degrees (see FIG. 2).

  The reciprocating rotation angle α may be adjustable within a predetermined range. In addition, the vertical rotation center axis X here does not need to be the vertical direction in a strict sense, and includes the substantially vertical direction.

  The body 12 is fixedly provided with a container 31 such as a hopper in which the object A is stored. The container 31 has, for example, a substantially inverted truncated conical shape that gradually decreases in diameter toward the lower side, and is formed on the lower surface and a substantially circular insertion port 32 that is formed on the upper surface and into which the material to be spread A is charged. It has a substantially circular discharge port 33 through which the object A is discharged.

  Then, the upper end side of the rotation shaft 21 is inserted into the housing 31 from the discharge port 33, and the axis (rotation center axis X) of the rotation shaft 21 coincides with the axial center axis of the housing 31. .

  On the outer peripheral surface of the upper end portion of the rotating shaft 21, a plurality of, for example, three longitudinal stirring bodies 41 arranged at intervals of about 120 degrees in the circumferential direction of the rotating shaft 21 are directed outward in the radial direction of the rotating shaft 21. Projected. That is, as shown in FIG. 2, the spraying device 11 is disposed in the lower part of the container 31 so as to be opposed to the discharge port 33 and is approximately 120 degrees in the circumferential direction about the rotation center axis X. Three agitating the object A while being reciprocally rotated at a reciprocating rotation angle α around the rotation central axis X integrally with the rotation shaft 21 with respect to the container 31 with respect to the container 31. A stirrer 41 is provided.

  The stirrer 41 is, for example, an elongated plate-like member, and a bent portion in which a base end portion is attached to the outer peripheral surface of the upper end portion of the rotating shaft 21, and a distal end side of the free end portion is bent upwardly. 42.

  Further, as shown in FIG. 3, the spraying device 11 has an upper end that is one end side attached to the upper portion of the housing 31 via an attachment body 44 such as an elongated plate-like fitting, and a lower end that is the other end side. A plurality of longitudinal bridge-preventing bodies 45, for example, the same number as the number of the stirring bodies 41, which are attached directly to the tip of the stirring body 41 and prevent the occurrence of the bridging phenomenon of the object A in the container 31 are provided. I have.

  The attachment body 44 has a container attachment portion 46 at one end and a bridge prevention body attachment portion 47 at the other end. The container mounting portion 46 is attached to the upper end portion of the container 31 with bolts 48 and nuts 49. The bridge prevention body mounting portion 47 is located a predetermined distance away from the inner surface of the upper end portion of the container 31, and the upper end side of the bridge prevention body 45 is attached to the bridge prevention body mounting portion 47.

  The bridge preventing body 45 is constituted by a flexible longitudinal member 51, for example. The longitudinal member 51 may be made of any member as long as it has flexibility, such as a wire, chain, string-like material, wire-like material, or belt-like material.

  Then, as shown in FIG. 5, the upper end portion, which is one end portion of the longitudinal member 51, is attached to the hole portion 47 a of the bridge prevention body attachment portion 47 of the attachment body 44, and is the other end portion of the longitudinal member 51. The lower end is attached to the hole 42a of the bent portion 42 at the tip of the stirrer 41.

  The length of the longitudinal member 51 is longer than the linear distance between the hole 47a of the bridge prevention body mounting portion 47 and the hole 42a of the bent portion 42. Therefore, the longitudinal member 51 is rotated. When the shaft 21 is stopped (when the spraying operation is stopped), as shown in FIG. 3, the shaft 21 is bent into a substantially curved shape based on its own weight.

  When the rotary shaft 21 is reciprocally rotated, that is, when the agitator 41 is reciprocally rotated (spraying operation), as shown in FIGS. At the same time, the object A is agitated by swinging in a complex manner in conjunction with the agitator 41 with the upper end as a fixed part based on reciprocal rotation. That is, the elongate member 51 stirs the object A while swinging in a complex manner in the container 31, for example, breaks up the mass of the object A adhered to the inner surface of the container 31, and the object A Prevents the occurrence of bridging phenomenon.

  Further, as shown in FIGS. 1 and 2, the spraying device 11 is provided on the machine body 12 so as to protrude rearward from the machine body 12, and is integrated with the rotation shaft 21 around the rotation center axis X. A sprinkling body 55 such as a substantially cylindrical spout that sprays the material A discharged from the discharge port 33 of the container 31 from the spray port 54 at the rear end while reciprocating in the left-right direction at a reciprocal rotation angle α. It has.

  The front end side of the spray body 55 is connected to the lower end of the container 31, and the internal space of the spray body 55 communicates with the internal space of the container 31 via the discharge port 33. And the to-be-spread object A which fell and discharged | emitted from the discharge port 33 of the container 31 is supplied to the internal space of the spray body 55, and passes through this spray body 55 from the spray port 54 of a rear-end part back. It is sprayed toward.

  Next, the operation of the spraying device 11 will be described.

  When the spraying device 11 is moved forward on the field by traveling of the tractor, the object A is sprayed by the spraying body 55 that reciprocates in the left-right direction integrally with the rotating shaft 21.

  At this time, in the container 31, the three stirring bodies 41 reciprocate and rotate together with the rotating shaft 21, and the flexible longitudinal member 51, which is the three bridge prevention bodies 45, stirs. It swings in a complex manner in conjunction with the body 41 (see FIGS. 4 and 5).

  And the whole to-be-spread object A in the container 31 will be stirred by these stirring bodies 41 and the elongate member 51, and the to-be-spread object A does not raise | generate a bridge | bridging phenomenon, but the dead weight side The liquid flows smoothly in the direction of the flow, drops from the discharge port 33, is supplied into the spray body 55, and is sprayed from the spray port 54.

  Thus, according to the spraying device 11, the upper end side is attached to the upper end portion of the containing body 31 and the lower end side is attached to the tip end portion of the stirring body 41, and the occurrence of the bridging phenomenon of the object A in the containing body 31 is prevented. Since the flexible longitudinal member 51, which is a plurality of bridge prevention bodies 45 to be prevented, is provided, the occurrence of the bridging phenomenon of the object A in the container 31 regardless of the type of the object A and It can prevent effectively, and can perform a dispersion | spreading work efficiently. That is, for example, even when dust or rice bran that is relatively easy to harden is sprayed, the bridging phenomenon does not occur and the spraying work can be performed efficiently.

  Further, since the longitudinal member 51 which is the bridge preventing body 45 can be easily retrofitted to the existing container 31 and the stirring body 41, the sprinkling object A can be spread only by retrofitting the longitudinal member 51. The number of types can be expanded to improve versatility.

  The spraying device 11 is not limited to a configuration including three stirring bodies 41 and three bridge prevention bodies 45, and the number of stirring bodies 41 and the number of bridge prevention bodies 45 are arbitrary, for example, one each. A configuration including two, four, or five or more may be used.

  Further, the number of the stirring bodies 41 may be different from the number of the bridging prevention bodies 45. For example, the five stirring bodies 41 and three stirring bodies 41 selected from these five stirring bodies 41 are provided with lower ends. The structure etc. provided with the three bridge | bridging prevention bodies 45 attached may be sufficient.

  Furthermore, for example, the upper end side of the bridge prevention body 45 may be directly attached to the upper portion of the housing 31 without using the attachment body 44.

11 Spraying device
31 Container
41 Stirrer
45 Anti-bridging body
51 Longitudinal member A Object to be scattered X Center axis of rotation

Claims (3)

A container in which the objects to be scattered are stored;
An agitator that is disposed in the container and agitates the object to be sprinkled while reciprocatingly rotating around a rotation center axis in the vertical direction;
One end side is attached to the said container, The other end side is attached to the said stirring body, The bridge | bridging prevention body which prevents generation | occurrence | production of the bridging phenomenon of the to-be-scattered object in the said container is provided. A container in which the objects to be scattered are stored;
A plurality of agitating objects disposed in the container and positioned at intervals in a circumferential direction centering on a rotation center axis in the vertical direction, and reciprocating around the rotation center axis. A stirring body;
A spraying device comprising: a plurality of bridging prevention bodies, wherein one end side is attached to the container, and the other end side is attached to the stirring body, and prevents a bridging phenomenon of the object to be spread in the container. . The spreader according to claim 1 or 2, wherein the bridge prevention body is configured by a longitudinal member having flexibility.

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