JP2772382B2 - Liquid injection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention is mainly used in fields and orchards to control agricultural crops, or to clean a storage tank for storing fluid such as oil. The present invention relates to a liquid ejecting apparatus for performing

(Prior Art) Conventionally, a liquid injection device which is installed in a field or an orchard and performs control is a method for introducing high-pressure liquid from a pump as described in, for example, Japanese Utility Model Publication No. 53-6084. On a support shaft having a liquid path, while rotatably supporting a rotating body having an injection nozzle main body and an eccentric shaft that injects liquid in a horizontal direction orthogonal to the axis of the support shaft, the eccentric shaft includes: A swivel nozzle for rotating the rotating body horizontally and horizontally around the support shaft is rotatably provided, and a reduction gear mechanism is provided between the swivel nozzle and the support shaft to inject from the swivel nozzle. The rotating body is revolved through the reduction gear mechanism by the reaction force of the liquid ejection, and the high-pressure liquid introduced into the liquid guide path of the support shaft is ejected in a horizontal direction from the nozzle of the ejection nozzle body. I have.

(Problems to be Solved by the Invention) However, the ejection nozzle body in the conventional liquid ejection device is fixed to the rotating body, and the high-pressure liquid is ejected only horizontally from the nozzle of the ejection nozzle body. Therefore, when installing in a field or orchard, it is usually arranged at a higher position than agricultural products such as fruit trees, and the liquid is sprayed horizontally on the upper part of the agricultural products, and the scattered mist falls and attaches to the agricultural products Was like that. Therefore, when controlling crops that are tall and have thick branches and leaves, only the upper surface of the crops can be controlled, and the control cannot be performed over the inside, resulting in a small control effect. there were.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object is to revolve an injection nozzle main body together with a rotating body while moving the injection nozzle main body at an elevation angle to eject a liquid not only in a horizontal direction but also in an elevation angle direction. The point is to make it possible.

(Means for Solving the Problems) The present invention provides a rotating body (2) having an injection nozzle body (9) on a support shaft (1) having a liquid guide path (1a).
A rotatable nozzle (3) for rotatably supporting the rotating body (2) and revolving the rotating body (2) in a lateral direction around the support shaft (1), wherein the spray nozzle main body is provided. (9) is pivotally supported on the rotating body (2) via a first horizontal axis (8) substantially perpendicular to the axis of the support shaft (1) so as to be capable of an elevation movement, and the support shaft (1). A first gear (4) having teeth is fixed to the rotating body (2),
A second horizontal shaft (11) extending in the same direction as the first horizontal shaft (8) is provided. The second horizontal shaft (11) meshes with the first gear (4), and the rotating body (2) ) Rotatably supports a second gear (10) that revolves around the support shaft (1).
A transmission mechanism (20) is provided between the gear (10) and the injection nozzle body (9) to move the injection nozzle body (9) in elevation.

The transmission mechanism (20) includes a transmission projection (21) deviated from the rotation center of the second gear (10) and a passive surface (23) engaged with the transmission projection (21). In the passive surface (23), on the side where the injection direction from the injection nozzle main body (9) is close to horizontal, the elevation angle movement speed with respect to the rotation speed of the second gear (10) decreases, and It is preferable that the injection surface has a curved surface in which the elevation angle movement speed with respect to the rotation speed increases on the side away from the horizontal.

(Operation) A part of the high-pressure liquid introduced into the liquid guide path (1a) of the support shaft (1) is jetted from the swirling nozzle (3), and the rotating body (2) is rotated by the support shaft (1). ), The injection nozzle body (9) revolves together with the rotating body (2). And the rotating body (2)
With the revolution, the second gear (10) revolves around the first gear (4) while revolving around itself, and the rotation of the second gear (10) is transmitted via the transmission mechanism (20) to the injection nozzle body. (9)
And the injection nozzle body (9) performs an elevation movement, and the nozzle of the injection nozzle body (9) can eject the liquid not only in the horizontal direction but also in the elevation direction. .

Further, the transmission mechanism (20) includes a transmission projection (21) deviated from the rotation center of the second gear (10), and a passive surface (23) engaged with the transmission projection (21). When the passive surface (23) has an injection direction from the injection nozzle body (9) closer to the sailor, the elevation movement speed with respect to the rotation speed of the second gear (10) becomes slower, and the injection nozzle body (9) ), The injection direction from the injection nozzle body (9) becomes horizontal, the injection distance becomes longer, and the orbit revolves. Even if the peripheral velocity of the jet liquid at a portion far away from the center is increased, the residence time of the jet liquid at the portion where the jet direction is close to horizontal can be lengthened, and further the jet liquid at the portion where the jet direction is away from the horizontal. The residence time of The injection amount per unit area in the fuel injection range is able equalized.

(Example) In FIGS. 1 to 4, (1) is a support shaft having a liquid guide path (1a) for introducing a high-pressure liquid from a pump, and is provided at an intermediate portion and a distal end portion of the support shaft (1). Are provided with horizontal holes (1b) and (1c) penetrating in the lateral direction from the liquid guide path (1a).
And around the said horizontal hole (1b) part of the said support shaft (1),
A rotatable member (2) having a communication passage (2a) communicating with the lateral hole (1b) is rotatably supported, and communicates with the lateral hole (1c) around the lateral hole (1c). A rotating nozzle (3) for revolving the rotating body (2) in a lateral direction around the support shaft (1), having an injection port, and an outer periphery at a lower end of the support shaft (1); A first gear (4) made of a worm is fixed.

An eccentric shaft (5) parallel to the support shaft (1) is erected at a position deviated from the center of rotation of the rotating body (2), and a tip end of the eccentric shaft (5) is provided. A rotatable impeller (6) rotatable by the jetting force of the liquid jetted from the swirling nozzle (3), and a reduction gear between the impeller (6) and the support shaft (1). The rotating body (2) is revolved through a mechanism (7).

The reduction gear mechanism (7) includes a small-diameter drive gear (71) provided on the impeller (6), a large-diameter fixed gear (72) fixed to the support shaft (1), and these gears (71). (72) and a plurality of small-diameter intermediate gears (73) and a plurality of large-diameter intermediate gears (7) to be supported between the eccentric shaft (5) and the support shaft (1).
4), and by the rotation of the impeller (6),
The drive gear (71), the large-diameter intermediate gears (74), and the small-diameter intermediate gears (73) are rotated so that the rotating body (2) revolves around the fixed gear (72).

On the other hand, at a position deviated from the rotation center of the rotating body (2), a passage (8a) communicating with the communication passage (2a) is provided, and the passage (8a) is substantially aligned with the axis of the support shaft (1). Orthogonal first
A horizontal axis (8) is provided, and the first horizontal axis (8) is pivotally connected to the injection nozzle body (9) having a liquid supply path (9a) communicating with the communication path (2a) so as to be able to move vertically. While supporting the first
An arm (2b) is provided opposite to the gear (4) at a predetermined distance from the gear (4), and a second horizontal axis (11) extending in the same direction as the first horizontal axis (8) is provided on the arm (2b). And the second horizontal axis (11)
A second gear (10) composed of a worm gear meshing with the first gear (4) is rotatably supported, and the second gear (10)
The first gear (4) with the revolution of the rotating body (2).
And the first gear (4) and the second gear (10) associated with the revolution of the second gear (10) are engaged with the second gear (10) by an angle corresponding to the shift of the meshing pitch. It rotates in one direction about 11) so that the teeth of the second gear (10) mesh properly with the teeth of the first gear (4).

Then, between the second gear (10) and the injection nozzle body (9), the rotation of the second gear (10) is transmitted to the injection nozzle body (9), and the injection nozzle body (9) is raised. The power transmission mechanism (20) for movement is provided. The transmission mechanism (20) has a transmission projection (21) projecting in the same direction as the second horizontal shaft (11) on one side surface of the second gear (10), and the injection nozzle body ( A passive piece (22) facing the side surface of the second gear (10) is protruded from the boss portion on the opening center side of 9), and the passive piece (22) is engaged with the transmission projection (21). A long hole-shaped passive surface (23) is provided, and rotation of the second gear (10) about the second horizontal axis (11) causes the transmission projection (21) to engage with the passive surface (23). The jet nozzle main body (9) is moved in elevation by changing the joint position. In addition, the passive surface (23) of the transmission mechanism (20)
As shown in FIG. 7, on the side where the direction of injection from the injection nozzle body (9) is close to horizontal, it extends in the same direction as the advancing direction of the transmission projection (21) to raise the elevation movement with respect to the rotational speed of the second gear (10). The speed becomes slow (the traveling angle of the transmission projection is in the range of 90 ° to 270 °), and the direction of injection from the injection nozzle body (9) is away from horizontal and is orthogonal to the direction of travel of the transmission projection (21). And the elevation speed relative to the rotation speed of the second gear (10) increases (the traveling angle of the
It is preferable to bend in a substantially V-shape (a range from a position exceeding 270 ° to 90 °).

The injection nozzle body (9) is provided with a spherical universal joint (9).
1) and a nozzle (92). The nozzle (92) includes a holder (92a) rotatable with respect to the universal joint (91) and a nozzle tip (92b) held by the holder (92a).
The nozzle tip (92b) is inclined outward in the radial direction with respect to the rotation center of the holder (92a), and the tip end is inclined in the rotation direction of the holder (92a) with respect to the base end.
When a high-pressure liquid is injected from the nozzle, the reaction force due to the injection acts in a direction opposite to the direction of inclination of the nozzle tip (92b), and the holder (92a) rotates at high speed with respect to the universal joint (91), By this high-speed rotation, the jet liquid draws a spiral trajectory.

In FIGS. 1 to 4, (12) is a bridging body bridged between the tip of the support shaft (1) and the tip of the eccentric shaft (5), and is connected to the support shaft (1). On the other hand, it is free to rotate.

The liquid ejecting apparatus (A) configured as described above has a structure in which the support shaft (1) is attached to the upper end of a liquid sending pipe (B) mainly arranged in a field or an orchard as shown in FIG. A liquid such as a pesticide is sprayed from above the fruit tree. Thus, a part of the high-pressure liquid introduced from the liquid sending pipe (B) into the liquid guide path (1a) is injected from the swirling nozzle (3) toward the impeller (6), and most of the high-pressure liquid is introduced. The high-pressure liquid is injected horizontally from the nozzle (92) of the injection nozzle body (9). When the impeller (6) is rotated by the jetting force of the high-pressure liquid jetted from the swirling nozzle (3), the rotating body (2) is rotated by the support shaft (1) via a reduction gear mechanism (7). , And the injection nozzle body (9) provided on the rotating body (2) also revolves,
A liquid such as a chemical is sprayed in a circumferential shape. And
With the revolution of the rotating body (2), the second gear (10) composed of the worm gear is replaced with the first gear (4) composed of the worm.
Revolves around the first gear and the first gear associated with the revolution of the second gear (10).
The second gear (10) rotates in one direction around the second horizontal shaft (11), corresponding to the shift angle of the meshing pitch between the gear (4) and the second gear (10). Will be properly engaged. As a result, due to the rotation of the second gear (10), the engagement position between the transmission projection (21) provided on the second gear (10) and the passive surface (23) provided on the injection nozzle body (9) is changed. In succession, the injection nozzle body (9) performs an elevation movement within a predetermined angle range. Therefore, the elevation angle movement of the injection nozzle body (9) causes the nozzle (92) of the injection nozzle body (9) to move.
The liquid can be ejected not only in the horizontal direction but also in the elevation direction. For this reason, even in the case of controlling crops that are tall and have thick branches and leaves, the crops can be controlled from the top surface to the inside of the crops, and the control effect can be enhanced.

Further, when the spray nozzle body (9) is revolved as described above and the liquid is sprayed in a circumferential shape, the spray distance becomes longer as the spray direction becomes closer to the horizontal, and the portion far away from the revolving center becomes longer. Since the peripheral velocity of the liquid jet is increased, the injection amount per unit area within the injection range decreases as the injection distance increases, but the passive surface (23) of the transmission mechanism (20) is not As shown in the drawing, on the side where the injection direction from the injection nozzle body (9) is close to horizontal, the elevation angle movement speed with respect to the rotation speed of the second gear (10) becomes slow, and the injection direction from the injection nozzle body (9) is horizontal. Second on the side away from
By making the angle of elevation relative to the rotation speed of the gear (10) bend in a substantially rectangular shape, the residence time of the jet liquid in the portion where the jet direction is nearly horizontal can be lengthened,
Further, since the residence time of the jet liquid in the part where the jet direction is away from the horizontal can be shortened, the jet amount per unit area within the jet range can be equalized.

Further, by rotating the nozzle (92) of the injection nozzle body (9) at a high speed as described above, the injection liquid draws a spiral trajectory and further entrains the surrounding air while a sufficient reach distance can be obtained. The jetting liquid moves in the jetting direction while generating an airflow, and the jetting liquid is divided into a large number of particles by the air resistance in the jetting direction, and the particles move on the airflow. Even when sprayed directly on the surface, the impact force on the crops can be made very small, and it can be controlled without damaging the branches and leaves, fruits and the like.

In the above embodiment, the support shaft (1) of the rotating body (2) is used.
As means for rotating the second gear (10) on its revolution,
A first gear (4) made of a worm is fixed to a support shaft (1), and a second gear (10) made of a worm gear is rotatably supported on a second horizontal shaft (11). In addition, the worm and the worm gear May be replaced by a screw gear or a bevel gear, which is essentially meshed with the first gear (4),
Any gear may be used as long as the gear revolves around the support shaft (1) of the rotating body (2).

In the embodiment described above, the injection nozzle body (9)
Is configured to perform an elevation movement in a downward direction from a side close to horizontal, but in addition, this injection nozzle body (9)
As shown in FIG. 6, a configuration may be employed in which a predetermined angle of elevation movement is performed in an upward direction from a side close to horizontal. In this case, the liquid ejecting device is arranged below the vine rack in the vineyard,
The spray nozzle main body (9) is moved upward by a predetermined angle in an upward direction from a nearly horizontal side to spray the pesticide from the lower side of the grape. In the case of FIG. 6, the passive surface (23) of the transmission mechanism (20) has the second gear (1) on the side where the injection direction from the injection nozzle body (9) is nearly horizontal as shown in FIG.
0) The elevation movement speed with respect to the rotation speed is reduced, and the elevation movement speed with respect to the rotation speed of the second gear (10) is increased on the side where the injection direction from the injection nozzle body (9) is away from the horizontal. By bending the jetting direction, the residence time of the liquid jet in the part where the jetting direction is close to horizontal can be lengthened, and the residence time of the liquid jet in the part where the jetting direction goes away from the horizontal can be shortened. The injection amount per area can be evenly changed.

Further, in the above embodiment, the injection nozzle body (9) having one nozzle (92) is used, but the injection nozzle body (9) is connected to the first horizontal axis (8) as shown in FIG. A structure having a plurality of nozzles (93) extending in the radial direction from the boss portion supporting the nozzles (93) may be employed, and each nozzle (93) may perform an elevation angle movement. With this configuration, for example, when cleaning the inside of a storage tank that stores a fluid such as petroleum, it is possible to clean the entire surface of the tank by the revolution and elevation movement of the injection nozzle body (9). is there.

Further, in the above embodiment, the injection nozzle body (9) is configured to move by a predetermined angle of elevation, but in addition, as shown in FIG. 8, the first horizontal axis (8) and the second horizontal axis (11) Are provided on the same axis, the injection nozzle body (9) and the second gear (10) are rotatable on the same axis, and a passive surface (24) formed of a round hole is formed on the boss of the injection nozzle body (9). Passive pieces (2
5) protruding, the transmission projection (21) on the passive surface (24)
May be engaged to rotate the injection nozzle body (9) continuously in one direction by the rotation of the second gear (10). Also in this case, it is possible to clean the entire surface in the tank.

In the embodiment of FIGS. 6, 7, and 8, the structure other than that described above is the same as that of the embodiment shown in FIGS. 1 to 4, and a detailed description thereof will be omitted.

Further, in the above embodiment, the turning nozzle (3) and the impeller (6) are used as means for revolving the rotating body (2). A swivel nozzle that can rotate in the direction opposite to the injection direction, is rotatably supported on the eccentric shaft (5), and is connected to the rotating body (2) via a reduction gear mechanism (7). May be configured to revolve.

(Effects of the Invention) As described above, according to the present invention, the injection nozzle main body (9) can be revolved together with the rotating body (2) to jet the liquid in the horizontal direction, and the injection nozzle main body (9) is removed. A first axis substantially perpendicular to the axis of the support shaft (1) on the rotating body (2);
A first gear (4) having teeth is fixed to the support shaft (1) while being pivotally supported by a horizontal axis (8) so as to be capable of elevation movement,
The rotary body (2) is provided with a second horizontal axis (11) extending in the same direction as the first horizontal axis (8).
A second gear (10) that meshes with the first gear (4) and revolves around the support shaft (1) of the rotating body (2) to freely rotate. A transmission mechanism (20) for transmitting the rotation of the second gear (10) to the injection nozzle main body (9) and moving the injection nozzle main body (9) in an elevation angle is provided between the injection nozzle main body (9) and the injection gear main body (9). With the revolution of the rotating body (2), the second gear (10) revolves around the first gear (4) while revolving around the first gear (4).
The rotation of (0) is transmitted to the injection nozzle main body (9) via the moving mechanism (20), and the injection nozzle main body (9) performs an elevation movement. Therefore, by the revolution and the elevation movement of the ejection nozzle body (9), the liquid can be ejected not only in the lateral direction but also in the elevation direction, so that crops that are tall and have thick branches and leaves are controlled. Even
It is possible to control the crop from the top to the inside of the crop, thereby improving the control effect. Even when the inside of the storage tank is washed, the spray nozzle body (9) is one.
The cleaning range can be expanded during each revolution, and the cleaning operation efficiency can be improved. Further, the transmission mechanism (20) includes a transmission projection (21) deviated from the rotation center of the second gear (10), and a passive surface (23) engaged with the transmission projection (21). On the side where the injection direction from the injection nozzle body (9) is close to the horizontal, the passive surface (23) has an elevation movement speed lower than the rotation speed of the second gear (10), and the injection nozzle body (9) By having a curved surface in which the angle of elevation with respect to the rotational speed is higher on the side where the jetting direction from the side is farther from the horizontal, the residence time of the jetting liquid in the portion where the jetting direction is nearly horizontal can be increased, and the jetting direction can be increased. Can shorten the residence time of the jet liquid in a portion away from the horizontal, so that the jet amount per unit area in the jet range can be equalized, and the unevenness of spraying and cleaning of the chemical solution can be reduced.

[Brief description of the drawings]

1 is a partially cutaway front view of the liquid ejecting apparatus of the present invention, FIG. 2 is a cross-sectional plan view, FIG. 3 is a front view with a cover body omitted, FIG. 4 is a plan view, and FIG. FIGS. 6 to 8 are front views showing another embodiment of the present invention.
FIG. 9 is a schematic view showing a use state. (1) Support shaft (1a) Liquid guide path (2) Rotating body (3) Rotating nozzle (4) First gear (8) First horizontal axis (9) Injection nozzle body (10) Second gear (11) Second horizontal axis (20) Transmission mechanism (21) Transmission projection (23) Passive surface

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B05B 3/00-3/18

Claims (2)

(57) [Claims] 1. A rotatable body (2) having an injection nozzle body (9) is rotatably supported on a support shaft (1) having a liquid guide path (1a). A liquid ejecting apparatus comprising a swirling nozzle (3) that revolves in a lateral direction around the support shaft (1), wherein the ejecting nozzle body (9) is provided.
To the rotating body (2) via a first horizontal axis (8) substantially perpendicular to the axis of the support shaft (1) so as to be able to perform an elevation movement, and teeth on the support shaft (1). The first horizontal gear (4) is fixed, and the rotating body (2) is provided with a second horizontal shaft (11) extending in the same direction as the first horizontal shaft (8). 11) a second gear that meshes with the first gear (4) and revolves around the support shaft (1) of the rotating body (2).
A gear (10) is rotatably supported, and a transmission mechanism (20) is provided between the second gear (10) and the injection nozzle main body (9) to move the injection nozzle main body (9) at an elevation angle. A liquid ejecting apparatus characterized in that: The transmission mechanism (20) includes a transmission projection (21) deviated from a rotation center of the second gear (10), and the transmission projection (2).
And a passive surface (23) engaging with the passive surface (2).
3) is that, on the side where the injection direction from the injection nozzle main body (9) is close to horizontal, the elevation angle movement speed with respect to the rotation speed of the second gear (10) decreases, and the injection direction from the injection nozzle main body (9) changes. 2. The liquid ejecting apparatus according to claim 1, wherein the liquid ejecting apparatus has a curved surface in which an elevation movement speed with respect to the rotation speed increases on a side away from the horizontal.