JPH1132650A - Boom sprayer apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a boom sprayer apparatus for not exposing an operator to a solution of a chemical in spraying the solution of the chemical to paddy rice, vegetable, etc., by the boom sprayer apparatus constituted to spray the solution of the chemical in a wide zone by traveling once. SOLUTION: A boom sprayer apparatus is equipped with a ventilating fan in parallel with a nozzle 25. The spray direction of the boom sprayer apparatus is regulated by a controller C and the air flow of the ventilating fan is made variable according to the growth state of grain, etc. Further, a duct is disposed behind the boom spray apparatus and the suction opening of the duct is arranged at the side of a driver's seat.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a boom sprayer device which is capable of spraying a chemical solution over a wide range in one run, so that an operator is not exposed to the chemical solution when spraying the chemical solution on rice or vegetables. To a boom sprayer device.

[0002]

2. Description of the Related Art Conventionally, a technique relating to a boom sprayer mounted on a traveling body such as a tractor has been known. In the boom sprayer device, a boom having a nozzle disposed at a rear portion or a front portion of a traveling body is arranged, and the boom is extended in a left-right direction so as to be widely spread.
And a medicine tank, a power sprayer, etc. were mounted on the traveling body. In addition, the driver's seat has been conventionally covered with a cabin or the like in order to prevent the exposure of the medicine when spraying the medicine.

[0003]

However, the provision of a cabin that covers the driver's seat not only increases the size and weight of the airframe, but also deteriorates the working environment without an air conditioner, increases the cost, and increases the work cost. Sometimes, blind spots were created by the frame, making it difficult to work. In the case where the cabin is not provided and the traveling body is relatively small, if the spraying operation is performed with the boom placed at the front or rear of the traveling body, the spray direction of the chemical is constant, so in the headwind, When the boom was arranged in the section, the chemical solution was exposed, and in a tailwind, the chemical solution was exposed when the boom was arranged in the rear.

[0004]

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. That is, in a configuration in which the boom sprayer is mounted before or after the traveling body, a blower fan is mounted in parallel with the boom to which the nozzle is mounted, and the blower fan and the boom are arranged so as to be rotatable in the front-rear direction. The fan and the boom can be changed to an arbitrary angle by a rotating means.

In addition, wind direction detecting means is arranged on the traveling body, the wind direction detecting means and the rotating means are connected to a controller, and the blower fan and the boom are rotated in the front-rear direction according to the wind direction. Connecting the blower fan and the air volume changeover switch to a controller, changing the air volume with the air volume changeover switch, arranging a duct at the rear of the boom sprayer, and arranging the suction port of the duct at the side of the driver's seat. It was done.

[0006]

Embodiments of the present invention will be described.
1 is a side view of a boom sprayer of the present invention, FIG. 2 is a plan view of the same, FIG. 3 is a rear view of the same, FIG. 4 is a perspective view of a front hitch mechanism for supporting the boom sprayer so as to be able to move up and down, and FIG. FIG. 6 is a block diagram showing the control of the spray direction of the boom spray device of the invention, and FIG. 6 is a side sectional view of the boom spray device.

First, the overall structure will be described with reference to FIGS. 1, 2 and 3. This machine, which uses a tractor as a traveling vehicle, has front wheels 18.
18 and rear wheels 14. A boom sprayer device to be described later is mounted on a front bumper 19 at a front portion of the traveling body via a front hitch mechanism D, and a mounting frame F is mounted on a rear portion of the tractor. Above F, a chemical tank T, a hose reel H, a spray pump (not shown) and the like are mounted. The spray pump on the mounting frame F is connected to a PTO shaft protruding from the rear of the tractor and connected to an input shaft of the spray pump to be driven.

The chemical tank T is mounted on the mounting frame F, and the front of the chemical tank T is located above the fender Y. A boom operation panel G, a switching valve mechanism, and a main valve are fixed to the chemical liquid tank T above the fender Y. Further, by configuring the chemical liquid tank T to surround the periphery of the seat O, the front-rear balance is improved while increasing the capacity of the chemical liquid tank as much as possible.

The width of the chemical solution tank T mounted on the mounting frame F is set to be equal to or equal to the width outside the rear wheels 14, and the width of the mounting frame F is set to the width of the rear wheels 14.
It is configured to fit within the width inside. A hose reel H is mounted on the mounting frame F.
On the hose reel H, a draw-out hose R is wound up and disposed when manually spraying the remaining sprayed portion.

As shown in FIG. 4, a front hitch mechanism D is mounted on a front bumper 19 at the front of the tractor. The front hitch mechanism D includes left and right parallel link mechanisms 20 and a right and left center boom. Lifting cylinder L
It consists of. The boom raising / lowering cylinder L is configured by an electric cylinder, and configured to extend and contract by rotating the motor forward and backward by a tractor power supply. At the front of the front hitch mechanism D, a boom spray device B, which will be described later, is arranged. The boom spray device B is moved up and down by extending and retracting a boom lifting cylinder L provided on the front hitch mechanism D. I have.

Next, a boom sprayer of the present invention will be described with reference to FIGS. 1, 2, 5 and 6. The boom sprayer B includes a fixed boom 1 and the fixed boom 1.
The left boom 2L and the right boom 2R are connected to each other, and the left boom 2L and the right boom 2R are foldably connected. And the front hitch mechanism D
The mounting plate 22 is fixed to the front of the
2, two support plates 26 are protruded forward, and the fixed boom 1 is pivotally supported by the support plates 26.

A cylinder support plate 24 protrudes forward substantially at the center of the mounting plate 22 in the left and right directions.
4, the base of the electric cylinder 21 is pivotally supported, and a fixed boom 1 is attached to the tip of the piston rod 21a of the transmission cylinder 21.
And is connected to a connecting rod 27 protruding upward from above. With such a configuration, the electric cylinder 21
, The fixed boom 1 can be rotated forward or backward. The fixed boom 1 is connected to the left boom 2L and the right boom 2R. When the fixed boom 1 rotates, the left boom 2L and the right boom 2R also rotate.

In the boom sprayer B, a plurality of nozzles 25, 25, 25... For discharging a chemical solution are arranged in the left-right direction at appropriate intervals.
.. And a blower fan 28. Then, the sprayed chemical is guided downward by the wind generated by the rotation of the blower fan 28.

Next, an automatic rotation control mechanism of the boom sprayer B will be described. An anemometer W is arranged at an arbitrary position such as on the bonnet or the chemical solution tank T where the wind hits well,
Automatic / manual changeover switch A for spraying operation, nozzle direction setting dial E, air volume changeover switch S at the side of driver's seat O
Is arranged. The automatic manual changeover switch A, the nozzle direction setting dial E, the air volume changeover switch S, the anemometer W, and the electric cylinder 21 are connected to the controller C.

When the automatic manual changeover switch A is set to automatic in such a connection configuration, the wind direction is detected by the anemometer W, and the signal is transmitted to the controller C to calculate whether it is the traveling direction. The cylinder 21 is expanded and contracted to change the direction of discharge from the boom sprayer B in accordance with the wind direction. For example, when the wind is blowing from the front (head wind), the cylinder rod 21a of the electric cylinder 21 is extended and the discharge direction from the boom sprayer device B is rotated to the rear.

Further, when the automatic manual changeover switch A is manually operated and the wind direction is set by the nozzle direction setting dial E, the boom sprayer device B can be rotated back and forth in the set direction, and can be sprayed in an arbitrary angle direction. it can.

Further, the air volume can be adjusted by changing the number of revolutions of the fan 28 by the air volume switch S. For example, when paddy rice and vegetables are not growing yet, the rotation speed of the fan 28 can be reduced to reduce the air volume so that the chemical solution does not soar in the air. In this case, the rotation speed of the fan 28 can be increased to increase the air flow so that the chemical solution adheres to the back of the foliage of paddy rice, vegetables and the like.

In this way, in the case of a headwind, the boom sprayer device B is automatically rotated rearward to spray the chemical under the tractor, thereby preventing the operator from being directly exposed to the chemical. In the case of a tailwind, the boom sprayer device B can be rotated forward, and the chemical can be sprayed on the wind to spray a wide area in front of the field, so that the operator is not exposed.

Further, ducts 30 are arranged on the left and right sides of the body behind the boom sprayer B, so that the suction ports 30a of the ducts 30 are located near the left and right sides of the driver's seat O. The other ends of the ducts 30 are communicated with the suction side of the fan 28 of the boom sprayer device B. Thereby, when spraying the drug on the field,
In particular, the medicine floating in the air around the driver's seat O is sucked into the suction ports 30a of the ducts 30 by the rotation of the fan 28 provided in the boom sprayer B, thereby further preventing the operator from being exposed to the medicine. , Improve safety. The ducts 30 are made of a flexible tube made of a synthetic resin, rubber, or the like, so that the boom sprayer device B can cope with the forward or rearward rotation, vertical movement, and folding.

[0020]

According to the above configuration, the following effects can be obtained. That is, in a configuration in which the boom sprayer is mounted before or after the traveling body, a blower fan is mounted in parallel with the boom to which the nozzle is mounted, and the blower fan and the boom are arranged so as to be rotatable in the front-rear direction. The fan and the boom can be changed to any angle by the rotating means, so that the spraying and adhesion of the medicine can be promoted by the fan and the scattering direction can be adjusted in the front-rear direction. Instead, the particles can be scattered diagonally or from below to improve the adhesion rate.

In addition, a wind direction detecting means is disposed on the traveling body,
The wind direction detecting means and the rotating means are connected to a controller, and the blower fan and the boom are rotated in the front-back direction according to the wind direction, so that the spray direction of the boom sprayer device is controlled according to the wind direction, It is possible to prevent the operator from being exposed to the chemical solution.

Further, since the blower fan and the air volume changeover switch are connected to the controller, and the air volume is changed by the air volume changeover switch, the air volume is reduced when the air flow is small and the chemicals soar according to the growing condition of the grain or the like. It can prevent this from happening and increase the air flow to increase the rate of adhesion to the backside of leaves, etc. when it is overgrown.

Further, since the duct is arranged at the rear part of the boom sprayer and the suction port of the duct is arranged on the side of the driver's seat, the chemical liquid floating around the driver's seat is sucked into the duct and the chemical liquid is applied to the operator. Can be prevented.

[Brief description of the drawings]

FIG. 1 is a side view of a boom sprayer device.

FIG. 2 is a plan view of the same.

FIG. 3 is a rear view of the same.

FIG. 4 is a perspective view of a front hitch mechanism that supports the boom sprayer so as to be able to move up and down.

FIG. 5 is a block diagram showing control of a spray direction of the boom sprayer of the present invention.

FIG. 6 is a side sectional view of the boom sprayer.

[Explanation of symbols]

 25 nozzle 28 blower fan 30 duct 30a suction port B boom sprayer device C controller O driver's seat

Claims (4)

[Claims] In a configuration in which a boom sprayer is mounted in front of or behind a traveling body, a blower fan is mounted in parallel with a boom to which a nozzle is mounted, and the blower fan and the boom are arranged so as to be rotatable in the front-rear direction. A boom sprayer, wherein the blower fan and the boom can be changed to an arbitrary angle by a rotating means. 2. A wind direction detecting means is arranged on the traveling body,
2. The boom sprayer according to claim 1, wherein said wind direction detecting means and said rotating means are connected to a controller, and the blower fan and the boom are rotated in the front-rear direction according to the wind direction. 3. The boom sprayer according to claim 1, wherein the blower fan and the air volume change switch are connected to a controller, and the air volume is changed by the air volume change switch. 4. The boom spray device according to claim 1, wherein a duct is arranged at a rear portion of the boom spray device, and a suction port of the duct is arranged on a side of a driver's seat.