JPH0538860Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a jet head device for a speed sprayer, and specifically, it suppresses the spray distance from being deviated from the normal distance in each direction due to the spray being blown away by the wind. The present invention relates to a jet head device for a speed sprayer.

[Conventional technology]

The jet head of a speed sprayer is divided from the front and back by a jet head plate and a vortex prevention plate, and the wind from the blower is introduced from the inner circumferential side of the vortex prevention plate to the jet head, passes between the jet head plate and the vortex prevention plate, and then flows around the surrounding area. At the same time, the discharged air carries the atomized chemical liquid and disperses it around the area.

In the conventional speed sprayer jet head device, the jet head plate and the vortex barrier plate are in a fixed state. Also,
When spraying on trellis crops, a wind control board is installed above the blower to suppress the amount of air flowing upward.

On the other hand, Japanese Utility Model Publication No. 42-13002 discloses a jet head device for a speed sprayer in which the spray pattern can be changed by tilting the wind guide plate that partitions one side of the jet head in the front and back direction using the lower end as a fulcrum. do. When a wind baffle plate is used, a vortex is generated at the top of the baffle plate, and the spray gets caught up in it, worsening the spraying condition.However, in the speed sprayer of Utility Model Publication No. 42-13002, the baffle plate is tilted. By narrowing the opening width above the nozzle head, the wind discharged upward is suppressed, so the upward reach distance of the spray can be reduced while preventing the generation of vortices.

[The problem that the idea attempts to solve]

In conventional speed sprayers, including the speed sprayer disclosed in Japanese Utility Model Publication No. 42-13002, the amount of conveying air discharged from the nozzle head and conveying the spray is symmetrical, so the wind flows from the left and right sides of the speed sprayer. If the spray is flowing in that direction, the spray will be blown away by the wind, and the reach distance of the spray to the windward and leeward sides will decrease and increase, respectively, compared to the normal one, and the amount of spray will be insufficient and insufficient on the windward and leeward sides. It becomes excessive and inappropriate.

An object of the present invention is to provide a jet head device for a speed sprayer that can maintain a normal spray distance in the left and right directions even when wind flows in the left and right directions of the speed sprayer.

The object of the invention of claim 2 is to be able to change the upward reach distance of the spray, and to maintain the right and left reach distance of the spray to the normal value even in the case of wind flowing in the left and right directions of the speed sprayer. It is an object of the present invention to provide a jet head device for a speed sprayer that can be used.

[Means to solve the problem]

This invention will be explained using reference numerals in the drawings that correspond to the embodiments.

Speed sprayer 10 that is the premise of claim 1
In the jet head device, the jet head 30 is divided into a jet head plate 42 and a vortex prevention plate 44 on one side and the other in the front and rear directions, respectively, and the wind from the blower 32 is introduced into the jet head 30 through the inner circumferential side of the vortex prevention plate 44. . Under such a premise, in the jet head device of the speed sprayer 10 according to claim 1, the vortex prevention plate 44 is connected to the jet head plate 42.
It is arranged so that the direction can be swung from the facing direction to the left and right. Further, an actuator 50 for changing the direction of the vortex barrier plate 44 can be remotely controlled from the driver's seat 18.

Speed sprayer 10 that is the premise of claim 2
In the jet head device, the jet head 30 is divided into a jet head plate 42 and a vortex prevention plate 44 on one side and the other in the front and rear directions, respectively, and the wind from the blower 32 is introduced into the jet head 30 through the inner circumferential side of the vortex prevention plate 44. . Under such a premise, in the jet head device of the speed sprayer 10 according to the second aspect, the vortex-proof plate 44 is connected to the blower 32.
It is rotatably spherically fitted into the case bodies 34, 40 of. Furthermore, an actuator 50 that changes the direction of the vortex prevention plate 44 in the vertical and horizontal directions can be remotely controlled from the driver's seat 18.

[Effect]

In the invention of claim 1, the actuator 50 is remotely operated from the driver's seat 18 of the speed sprayer 10 to adjust the orientation of the vortex barrier plate 44. When there is no wind, the vortex prevention plate 44 is oriented to face the jet head plate 42, and the width of the opening defined between the jet head plate 42 and the vortex prevention plate 44 is made equal on the left and right sides of the jet head 30. As a result, the air discharged from the blower 32 is discharged from the left and right sides of the jet head 30 with equal air volume, and
The distances that the spray reaches from 0 to the left and right are made equal. On the other hand, when the natural wind is flowing from one side to the other in the left-right direction of the speed sprayer 10, the direction of the vortex prevention plate 44 is in one direction in the left-right direction with respect to the direction facing the jet head plate 42. be swayed. As a result, a large amount of wind is discharged from the vortex prevention plate 44 to one side in the left and right direction, that is, to the windward side, and the distance of the spray to the left and right becomes equal due to offset with the flow of natural wind, and the speed Regular reach distances can be obtained on the left and right sides of the sprayer 10.

In the invention of claim 2, the speed sprayer 10
By remotely controlling the actuator 50 from the driver's seat 18 of
40 at the spherical fitting parts 46 and 48 to adjust the horizontal and vertical directions of the vortex prevention plate 44. When there is no wind, the vortex prevention plate 44 is oriented to face the eruption head plate 42, and the width of the opening defined between the eruption head plate 42 and the vortex prevention plate 44 is normal on the left, right, and upper sides. As a result, the air discharged from the blower 32 is discharged from the left and right sides of the jet head 30 at an equal volume, and the distances of the spray from the jet head 30 to the left and right directions are made equal. On the other hand, when the natural wind is flowing from one side to the other in the left-right direction of the speed sprayer 10, the vortex prevention plate 44 is oriented in one direction in the left-right direction with respect to the direction facing the jet head plate 42. is rotated. As a result, the vortex-proof plate 44
A large amount of air is discharged to one side in the left and right direction, that is, to the windward side, and by counterbalance with the flow of the natural wind, the distances of the spray to the left and right become equal, and a normal distance can be obtained. In addition, when suppressing the upward airflow such as when spraying on trellised crops, etc., the case body of the blower 32 is moved so that the vortex-proof plate 44 faces downward with respect to the direction facing the blowing head plate 42. 34, 40 at spherical fittings 46, 48. As a result, the amount of air discharged upward from the jet head 30 is suppressed, and the distance that the spray reaches upward is reduced.

〔Example〕

The present invention will now be described with reference to the accompanying drawings.

FIG. 10 is a schematic side view of the speed sprayer 10. The speed sprayer 10 includes a front wheel 12 and a rear wheel 14 as drive wheels, and is capable of moving forward and backward. Furthermore, the speed sprayer 10 includes, in order from the front side, a driver's seat 18 equipped with a steering wheel 16, a chemical liquid tank 24 that stores a chemical liquid 20 inside and has a cover 22 provided in the upper center approximately in the upper part so as to be openable and closable, an engine, and a pump. Engine room 2 that accommodates mechanical parts such as (not shown)
6, a jet head 30 having a plurality of nozzles 28 arranged along its periphery for spraying the chemical solution 20 to the sides and upwards, and a blower disposed at the rear end and discharging air sucked in from the rear to the jet head 30. 32.

FIGS. 1 and 2 are plan views showing the structure of the jet head device in a state in which the vortex prevention plate 44 of the jet head 30 faces the jet head plate 42 and toward the right, respectively. The decorative shell 34 defines the inner and outer circumferences of the air blower 32 on the suction port side, and the dustproof net 36 covers the suction port of the air blower 32 to prevent foreign matter from being sucked into the air blower 32. The rotor blades 38 are arranged on the inner peripheral side of the decorative cylinder 34 and suck air from the dustproof screen 36 side by rotation, and discharge it to the jet head 30. Discharge port case 40
has a spherical wall, and the jet head 30 of the rotor blade 38
It is arranged on the side and defines the discharge port of the blower 32.
The eruption head plate 42 and the vortex prevention plate 44 are connected to the eruption head 30, respectively.
The front side and the rear side of the discharge port case 40 are divided.
The wind discharged from the vortex plate 44 is introduced into the jet head 30 through the inner circumference side, and its direction is changed to the left and right and upward by collision with the jet head board 42.
The liquid is discharged from the jet head 30 to the left and right and upward through the space between the vortex barrier plate 44 and the vortex prevention plate 44 . The spherical fitting part 46 is formed between the inner periphery of the vortex prevention plate 44 and the outer periphery of the discharge port case 40, and the spherical fitting part 48 is formed between the outer periphery of the vortex prevention plate 44 and the inner periphery of the outer peripheral wall of the decorative cylinder 34. The center of the spherical surface of the spherical fitting parts 46 and 48 is formed between the discharge port case 4
It is the center P of 0. The vortex prevention plate 44 is rotatable three-dimensionally about P as the center of the spherical fitting portion 46,
It is supported at 48, and its direction can be changed vertically and horizontally. The electric cylinders 50 are disposed at positions corresponding to the left and right lower ends and the center upper end of the vortex prevention plate 44 (FIG. 6), and are connected to the supporting member and the vortex prevention plate in the engine room 26 at the front and rear ends, respectively. 44 so as to be rotatable about vertical and horizontal lines.

FIG. 3 and FIG. 4 each show an electric cylinder 50.
FIG. electric cylinder 50
The rod 54 has a cylinder portion 52 and a rod 54 whose protrusion amount from the cylinder portion 52 can be changed. The clevis 56 extends vertically and horizontally at the front and rear ends of the electric cylinder 50, respectively, and is inserted through the end of the electric cylinder 50 and the stopper 58, and is prevented from coming off by a split pin 60. The front and rear fasteners 58 are connected to the engine compartment 2, respectively.
As a result, the electric cylinder 50 is rotatable around the clevis 56 at the front and rear ends, that is, the electric cylinder 50 is fixed to the support member in the engine room 26 at the front end. It is rotatably coupled around a vertical line, and the rear end portion is rotatably coupled to the swirl prevention plate 44 around a horizontal line.

FIG. 5 is a configuration diagram of the control mechanism of the electric cylinder 50. In the driver's seat 18, a seat 62 is disposed facing the steering wheel 16, and remote control switches 64a, 64b, and 64c are disposed on the left side of the seat 62 and are turned on and off by manual operation. It corresponds to the rightward direction, downward direction, and leftward direction of the vortex plate 44. The control device 66 includes remote control switches 64a, 64
Battery 68 related to on/off of b and 64c
The power supply and the direction of power supply to each electric cylinder 50 are controlled, and the length of each electric cylinder 50 is changed.

FIG. 6 is a configuration diagram of the rotation mechanism of the vortex prevention plate 44. The electric cylinders 50 are disposed at the left and right lower ends and at the center upper end, and each electric cylinder 50
Due to the expansion and contraction, the vortex prevention plate 44 rotates at the spherical fitting portions 46 and 48 on the blower 32 side, and the direction of the vortex prevention plate 44 changes.

FIGS. 7 and 8 are views showing the jet head 30 from above when the vortex prevention plate 44 is oriented rightward and downward, respectively, with respect to the direction in which it faces the jet head plate 42. FIG. In FIG. 7, the electric cylinder 50 at the center upper end
is the neutral length, and the electric cylinder 5 at the lower left and right ends
0 are shrunk and stretched respectively. In Figure 8,
The electric cylinder 50 at the center upper end is reduced in size, and the electric cylinders 50 at the left and right lower ends are both set to a neutral length.

FIG. 9 shows various spray patterns viewed from the rear of the speed sprayer 10. A (solid line) is the regular spray pattern, B (dotted line) is the spray pattern for shelf crops, and C (dotted chain line) is the regular spray pattern A where the spray is caused by natural wind from the right.
A state in which the spray flows more to the left is shown, and D (broken line) shows a spray pattern when the vortex barrier plate 44 is turned to the right in a calm state.

The operation of the embodiment will be described with reference to FIG. 9.

In no wind conditions, the remote control switches 64a, 64
b and 64c are both turned off. As a result, each electric cylinder 50 has a neutral length, the vortex prevention plate 44 is oriented to face the jet head plate 42, and the jet head plate 44 at the left and right lower ends and upper part of the jet head 30 is oriented to face the jet head plate 42.
The opening widths of the vortex-proof plate 44 and the vortex-proof plate 44 become equal. As a result, the amount of air discharged from the nozzle head 30 to the left and right is equalized, and the spray of the chemical liquid 20 ejected from the nozzle 28 is sent out evenly to the left and right, and the chemical liquid 20 is sprayed according to the spray pattern A.

When spraying the chemical solution 20 on the trellis crops, only the remote control switch 64b is turned on in the driver's seat 18. As a result, the electric cylinders 50 at the left and right lower ends are set to their neutral length, and the electric cylinder 50 at the central upper end is contracted, and the vortex prevention plate 44 is rotated and slid about P at the spherical fittings 46, 48, so that it faces downward from the direction facing the nozzle plate 42 (FIG. 8). This suppresses the amount of air discharged upward from the nozzle 30, and the amount of chemical solution 20 discharged upward is reduced.
As the spray reach distance is reduced, the spray is redirected toward the lower left and right ends, and the spray reach distance of the medicinal liquid 20 to the left and right increases (spray pattern B).

For example, if the natural wind is flowing from the right side to the left side of the speed sprayer 10, if the spray pattern remains A, the spray will be blown away by the natural wind, and the distance the spray will reach in each direction will be as shown in C. . Therefore,
When the remote control switch 64a is turned on in the driver's seat 18, the electric cylinder 50 at the upper center end is set to the neutral length, and the electric cylinder 50 at the lower left and right ends is turned on.
are respectively reduced and expanded, and the vortex barrier plate 44 is
Due to the rotational and sliding movement of the spherical fitting parts 46 and 48 around the center, it is directed to the right from the direction facing the jet head plate 42 (FIG. 7). As a result, the jet head 30
The amount of air discharged from the air to the left and right lower ends is increased and decreased, respectively, and the range of spraying of the chemical solution 20 to the surrounding area is returned from C to A by counterbalance with the flow of natural wind. If the vortex barrier plate 44 is oriented to the right when there is no wind, the distance that the spray reaches the surrounding area is D. Note that if the vortex prevention plate 44 is directed toward the windward side when the natural wind force and wind speed are large, the discharge air volume can be set appropriately according to the natural wind force and wind speed. In addition, when the object to be sprayed exists only on one side of the left and right side of the speed sprayer 10, the direction of the vortex-proof plate 44 is changed to the left or right even when there is no wind, and the chemical solution 20 is directed to the side where the object to be sprayed is present. can be concentrated and dispersed.

In the illustrated embodiment, the electric cylinders 50 are arranged on the left and right sides, but the electric cylinders 50 are provided on only one side of the left and right sides, and the electric cylinders 50 on one side
The vortex barrier plate 44 also depends on its neutral length, elongation and contraction.
It is also possible to change the direction of the left and right.

Further, in the illustrated embodiment, the jet head 30 is partitioned from the front and back by the jet head plate 42 and the vortex prevention plate 44, but conversely, the jet head 30 is partitioned from the front and back by the vortex prevention plate 42 and the vortex prevention plate 44, respectively.
Needless to say, it may be partitioned by a blower head plate 42.

[Effect of idea]

In the invention of claim 1, the vortex barrier plate is swingable from side to side, and by remote control of an actuator from the driver's seat, the direction of the vortex barrier plate can be changed from the direction facing the jet head plate to the left and right. The amount of air discharged from the can be changed to match the natural wind. As a result, the spray can be spread while maintaining the spray distance at a regular value despite the natural wind.

In the invention of claim 2, the vortex preventive plate is spherically fitted to the case body of the blower, and in this spherical fit, the vortex preventive plate can be freely rotated relative to the case body, and the actuator can be operated remotely from the driver's seat. Rotate the vortex plate through the operation. As a result, the direction of the vortex prevention plate can be changed vertically and horizontally, and the amount of wind discharged from the jet head to the left and right and upward can be adjusted according to the direction of the natural wind and the spraying environment of trellis crops, etc. As a result, the spray can be spread to the specified distance despite the natural wind, and the upward reach of the spray can be reduced without creating a vortex like when using a wind control plate. can be done.

[Brief explanation of the drawing]

The drawings relate to an embodiment of this invention, and FIGS. 1 and 2 are plan views showing the structure of the jet device when the vortex preventive plate of each jet head is facing the jet head plate and facing to the right. Figures 3 and 4 are respectively a plan view and a front view of the electric cylinder, Figure 5 is a configuration diagram of the control mechanism of the electric cylinder, Figure 6 is a configuration diagram of the rotation mechanism of the vortex prevention plate, and Figure 7 Figure 8 shows the jet head from above when the vortex plate is oriented rightward and downward, respectively, with respect to the direction in which the vortex plate faces the jet head plate, and Figure 9 shows various spray patterns from the rear of the speed sprayer. The top view, FIG. 10, is a schematic side view of the speed sprayer. DESCRIPTION OF SYMBOLS 10...Speed sprayer, 18...Driver's seat, 30...Blower head, 32...Blower, 34...Fashion body (case body), 40...Discharge port case (case body), 42...Blower head plate, 44 ...Vortex-proof plate, 50
...Electric cylinder (actuator).

Claims (1)

[Claims for Utility Model Registration] (1) The jet head 30 is divided into a jet head plate 42 and a vortex-proof plate 44 on one side and the other in the front-rear direction, respectively, and the wind from the blower 32 blows through the inner peripheral side of the vortex-proof plate 44. In the jet head device of the speed sprayer 10 that is introduced into the jet head 30 through the
is disposed so as to be able to swing from the direction facing the jet head plate 42 to the left and right, and the vortex prevention plate 4
A jet head device for a speed sprayer, characterized in that an actuator 50 for changing the direction of the jet 4 can be remotely controlled from a driver's seat 18. (2) The jet head 30 is divided into a jet head plate 42 and a vortex prevention plate 44 on one side and the other in the front-back direction, respectively, and the wind from the blower 32 is introduced into the jet head 30 through the inner peripheral side of the vortex prevention plate 44. In the jet head device of the speed sprayer 10, the vortex prevention plate 44
However, the actuator 50, which is rotatably spherically fitted to the case bodies 34, 40 of the blower 32 and changes the direction of the vortex prevention plate 44 in the vertical and horizontal directions, can be remotely controlled from the driver's seat 18. The characteristic feature of the speed sprayer is the jet head device.