JP2009232772A - Self-propelled pest control machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the weight of a chemical tank itself and facilitate an attaching/detaching operation of the chemical tank to a machine body, and to simplify the pipe arrangement of from the chemical tank to a distribution boom, and prevent the pressure drop between a branching manifold and the distribution boom. <P>SOLUTION: The self-propelled pest control machine is equipped with the distribution boom 9 at the front part of a car body 1 and the chemical tank 5 at the rear part of the car body 1, and can travel by right and left front wheels 3 and 3, and right and left rear wheels 4 and 4. The self-propelled pest control machine is constituted by installing the branching manifold 53 in the vicinity of the rear part of the distributing boom 9 when installing the branching manifold 53 for branching and sending the chemical to the distributing boom 9. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a self-propelled control machine for spraying a chemical solution, and belongs to the technical field of agricultural machinery.

Conventionally, as shown in Patent Document 1, the branch manifold for sending the chemical solution to the spray boom at the front part of the vehicle body is configured to be provided directly in the chemical solution tank.
JP 2007-136659 A

In the prior art, since the weight of the branch manifold is added to the weight of the chemical tank, it is not easy to lower or place the chemical tank for maintenance.
In addition, when there are multiple spraying booms, multiple pipes are required over a long distance from the branch manifold to the spraying boom. It wasn't.

In order to solve the above problems, the present invention has taken the following technical means.
That is, the present invention according to claim 1 includes a spraying boom (9) at the front of the vehicle body (1), a chemical tank (5) at the rear of the vehicle body (1), the left and right front wheels (3, 3) and the left and right rear wheels. In the self-propelled control machine capable of traveling at (4, 4), in providing the branch manifold (53) for branching and feeding the chemical solution to the spray boom (9), the branch manifold (53) is provided for the spray boom (9). The self-propelled control machine is characterized by being provided near the rear.

  The spraying operation is performed with the spraying boom (9) at the front of the vehicle body (1) while traveling the vehicle body (1). The chemical solution sent from the chemical solution tank (5) at the rear of the vehicle body (1) is branched by the branch manifold (53) and travels to the spray boom (9).

  The present invention according to claim 2 is the self-propelled control machine according to claim 1, wherein the branch manifold (53) is provided on a lifting link (58) for lifting and lowering the spray boom (9). Is.

The branch manifold (53) is provided on a lifting link (58) that lifts and lowers the spray boom (9).
According to a third aspect of the present invention, the branch manifold (53) is provided on the opposite side of the exhaust port (59) from the engine (E) with respect to the center of the fuselage. The self-propelled control machine described in 2 is used.

  The exhaust gas emitted from the exhaust port (59) of the engine (E) does not directly hit the branch manifold (53).

  The effect of claim 1 is that by providing the branch manifold (53) in the vicinity of the rear of the spray boom (9), the weight of the chemical tank (5) itself is reduced, so that the attaching / detaching operation to the machine body is facilitated. In addition, since only one pipe is required from the chemical tank (5) to the spray boom (9), the configuration and wiring are facilitated and the cost is reduced. Moreover, the pressure loss between the branch manifold (53) and the spray boom (9) is reduced.

  The effect of claim 2 is that, in addition to the effect of claim 1, the spreading boom (9), the lifting link (58), and the branch manifold (53) are integrated, so when attaching the spreading boom (9) to the fuselage, Indispensable lifting links (58) and branch manifolds (53) can be attached together.

  The effect of claim 3 is that in addition to the effect of claim 1 or claim 2, the exhaust gas emitted from the exhaust port (59) of the engine (E) does not directly hit the branch manifold (53). 53) can be prevented.

An embodiment of the present invention will be described with reference to the drawings.
1 and 2 show a riding type control machine.
An engine E is mounted on the front portion of the vehicle body 1, the rotational power of the engine E is transmitted to the transmission in the mission case 2, and the rotational power decelerated by the transmission is transmitted to the left and right front wheels 3 and 3 It is configured to transmit to the rear wheels 4 and 4. A chemical tank 5 for storing a chemical solution is installed at the rear of the machine body, and a driver's seat 6 is provided on the front side of the chemical solution tank 5 and a steering handle 7 is provided in front thereof. A chemical solution tank 5 projects from both sides of the driver seat 6. Reference numeral 17 denotes a panel provided with an engine speed display and various warning lights.

  The chemical solution in the chemical solution tank 5 is ejected from each nozzle 11 of the spray hose 10 provided in the spray boom 9 described later by the pump 8. The pump 8 is configured to be driven from the engine E by a belt pulley transmission system 8a.

  Boom storage support frames 13 and 13 for storing and supporting the spreading boom 9 are erected on both the left and right sides of the machine body, and are configured to be latched and held by the receivers 14, so that the vehicle can run at a high speed. The receiving member 14 is provided with an elastic body for absorbing vibration at the time.

  The spreading boom 9 will be described. The center spray boom (center boom) 9a substantially coincides with the width of the airframe, and the left and right spray booms (side booms) 9b, 9b connected to the left and right sides thereof are more than the center spray boom (center boom) 9a. The length is long.

  The side boom 9b is pivotally connected to the center center boom 9a, and is rotated upward by the side boom upper and lower cylinders 15 to be held in the stowed state or in a spraying work posture state substantially parallel to the ground. It can be rotated and supported. In addition, 16 is a boom raising / lowering cylinder which raises / lowers the whole spreading | diffusion boom.

Next, the spraying circuit 12 of the boom sprayer (chemical solution spraying device) of the riding type control machine will be described with reference to FIGS. 3 and 4.
An operation panel 20 and a control panel 21 and spray cocks C1, C2, C3 of the booms 9a and 9b that can be manually opened and closed are installed on the side of the driver's seat 6. On / off sensors 50, 51, 52 are provided at the base of the spray cocks C 1, C 2, C 3, and the on / off sensors 50, 51, 52 are connected to the CPU 100.

  On the other hand, electromagnetic valves 54, 55, and 56 are provided in the branch manifold 53 for flowing the chemical solution to the center boom 9a and the left and right side booms 9b and 9b, and are connected to the CPU 100. When the solenoid valves 54, 55, 56 are operated, the chemical solution flows to the center boom 9a and the left and right side booms 9b, 9b. This signal is input to the CPU 100 by entering and operating the spray cocks C1, C2, C3, and is output from the CPU 100 to the solenoid valves 54, 55, 56.

The branch manifold 53 is connected to the center boom 9a and the left and right side booms 9b, 9b by pipes D2, D1, D3.
In addition, on the control operation panel 21 provided with the operation panel 20, display units such as a spray setting 23, a pressure 24, a flow rate 25, a total flow rate 26, and the like are displayed on the left side of the display 22 at the upper center. The content of data displayed on this display is indicated by a triangular mark that is lit at the left end of. On the right side of the display 22 is provided a display switching button 28 that is a display switching means. Below these, an automatic push button (switch) 29 is provided, and an on state of the automatic push button (switch) 29 is indicated by a pilot lamp 30. Further, the configuration includes a spray setting button switch 31, increase / decrease button switches 32 and 33, a cumulative reset switch 34, and the like.

S1 is a switch for raising and lowering the entire boom. S2 is an open / close switch for the left side boom 9b, and S3 is an open / close switch for the right side boom 9b.
The chemical liquid suction / discharge path of the spraying circuit 12 includes a low pressure water absorption path 35 extending from the chemical liquid tank 5 to the pump 8 and a high pressure water discharge path 37 extending from the pump 8 through the flow rate control valve 36 to the spraying booms 9a and 9b. Are connected by a hose or the like. Reference numeral 9c denotes an extension boom that is connected to the spreading boom 9b and is configured to be attached and detached in accordance with the working state. If the extension boom 9c is always connected, spraying is performed by opening the cock 9d when spraying using the extension boom 9c, and spraying is performed by closing the cock 9d when not using the extension boom 9c. It may not be possible.

  The high-pressure water discharge path 37 is provided with a spillage return path 40 having a safety valve 38 for releasing a liquid pressure higher than a certain pressure, and can be returned to the chemical liquid tank 5. In addition, a stirring path 41 is communicated with the bottom of the chemical liquid tank 5 so that a part of the chemical liquid is constantly ejected and reduced into the tank to agitate the chemical liquid in the chemical liquid tank 5. In the high-pressure water discharge path 37 between the flow control valve 36 and the branch manifold 53, a pressure sensor 42 for detecting the fluid pressure and a first flow sensor 43 for detecting the flow rate are provided. The opening degree of the flow control valve 36 is controlled by a control motor. Reference numeral 39 denotes an air chamber.

  In addition, a suction filter 44 is provided between the chemical liquid tank 5 and the pump 8 in the low-pressure water absorption path 35, and a flow rate in the water absorption path is detected between the suction filter 44 and the pump 8. A two-flow sensor 45 is provided.

  As shown in FIG. 5, the branch manifold 53 is provided near the rear of the center boom 9a. A hydraulic cylinder 57 opens and closes the left and right side booms. Conventionally, the branch manifold is provided in the chemical tank and is configured to send the chemical to the center boom 9a and the left and right side booms 9b, 9b. The disadvantage of this configuration is that the weight of the branch manifold is added to the chemical tank itself, and therefore it becomes heavy when the chemical tank is removed from the machine body. Further, three pipes from the branch manifold to the center boom 9a and the left and right side booms 9b, 9b are required.

  On the other hand, by providing the branch manifold 53 in the vicinity of the rear of the center boom 9a, the weight of the chemical solution tank 5 itself is reduced, so that it can be easily removed from the machine body. Further, since only one pipe is required from the chemical tank 5 to the boom, the configuration and wiring are facilitated and the cost is reduced. Further, the pressure loss between the branch manifold 53 and the boom is reduced.

  In addition, since the pressure sensor 42 is provided in the branch manifold 53 close to the center boom 9a and the left and right side booms 9b, 9b, and the spray pressure with the reduced pressure loss can be detected as described above, the accuracy of chemical spraying is improved. To improve.

  And the mounting place shall be provided on the raising / lowering link 58 of a boom. As a result, the lifting link 58, the booms 9a, 9b, and the like can be integrally mounted on the main body side, so that assembly work and work at the maintenance shop are facilitated.

  Further, the branch manifold 53 is provided on the opposite side of the exhaust port 59 of the engine E. This can prevent damage to the branch manifold 53 and the electromagnetic valves 54, 55, and 56 due to exhaust heat.

  Further, the branch manifold 53 and the electromagnetic valves 54, 55, 56 and the like are arranged on the inner side of the outermost outer frame 58 a constituting the elevating link 58. Thereby, it becomes possible to prevent the left and right side booms 5b, 5b from coming into contact with each other when they are closed. Then, the aircraft can be configured in a compact manner.

  Since the distance between the solenoid valve 54, 55, 56 and the center boom 9a and the left and right side booms 9b, 9b is shortened, it is sprayed with almost no time difference after the solenoid valves 54, 55, 56 are operated. The driver can improve workability without feeling uncomfortable. Conventionally, since the electromagnetic valve is provided in the chemical tank together with the branch manifold, it takes a little time for the electromagnetic valve to operate and spray from the boom, but such a problem can be prevented.

  In FIG. 4 described above, the spray cocks C1, C2, and C3 are of the lever type, but in the configuration shown in FIG. That is, it is composed of a right switch 60, a middle switch 61, a left switch 62, and an overall switch 63. When the right switch 60 is turned on, it is sprayed from the right side boom 9b, when the left switch 62 is turned on, it is sprayed from the left side boom 9b, and when the middle switch 61 is turned on, it is sprayed from the center boom 9a. Further, when the entire switch 63 is turned on and operated, the center boom 9a and the left and right side booms 9b and 9b are sprayed.

  As described above, since the spraying from the boom is switch type, the operation panel 20 can be attached at any position on the machine body. Further, the operation panel 20 can be removed from the machine body, and the operator can carry it around and perform remote operation. At this time, for example, the operator performs the operation of the airframe and the spraying operation is performed by another worker, so that a spraying error can be prevented. Conventionally, since a single operator has simultaneously performed a long boom spraying operation together with the operation of the aircraft, there has been a case where a spraying mistake has been made. However, such a work mistake can be prevented.

The other switches of the operation panel 20 are the same as those in FIG.
FIG. 7 shows piping between the aforementioned branch manifold 53 and the flow control valve 36 (see FIG. 3). It is the side view of FIG. 37 is a high-pressure water discharge path, and 37a is the hose. The actual piping configuration of the hose 37a of the high-pressure water discharge path 37 is configured to perform piping in a substantially straight line state. Thereby, the turbulent flow in the hose 37a can be prevented and the pressure loss can be reduced. Further, since the measurement error of the pressure sensor 42 provided integrally with the branch manifold 53 and the flow sensor 43 provided integrally with the flow control valve 36 can be reduced, the control amount set on the operation panel 20 can be reduced. High-precision spraying can be performed without deviation.

  The detection value of the pressure sensor 42 is required to have high detection accuracy in order to synchronize with the vehicle speed of the fuselage and control the spraying of the chemical solution. Spraying becomes possible.

  FIG. 9 shows a configuration in which a stirring blade 65 is provided in the chemical solution tank 5. The stirring blade 65 is driven by the drive shaft 64 from the control pump 8. Thereby, the density of the chemical solution in the chemical solution tank 5 becomes uniform. Further, by driving the stirring blade 65 from the control pump 8, a separate drive source is not required and the configuration becomes simple.

  FIG. 10 shows a piping diagram between the branch manifold 53 and the left side boom 9b. A sub-manifold 64 is provided in the pipe D1 between the branch manifold 53 and the left side boom 9b. The sub-manifold 64 is provided with a pressure sensor 65 and a flow control valve 66, and further provided in the vicinity of the upstream side of the left side boom 9b. Similarly, the sub-manifolds are provided for the pipes D3 and D2 toward the right side boom 9b and the center boom 9a, and the sub-manifold is provided with a pressure sensor and a flow control valve.

  As a result, not only can the pressure detection and flow control of each of the left and right side booms 9b, 9b and the center boom 9a be performed, but the pressure sensor and the flow control valve are arranged immediately adjacent to the upstream side of the spraying boom. The pressure can be detected with high accuracy, and the flow rate control can be executed with high accuracy.

Side view of riding type control machine Front view of passenger type control equipment Sprinkler piping diagram Plan view of control panel Top view of part of the aircraft Plan view of control panel Top view of part of the sprinkler piping Side view of part of the sprinkler piping Plumbing diagram of part of the spreader Plumbing diagram of part of the spreader

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car body 3 Front wheel 4 Rear wheel 5 Chemical solution tank 9 Spraying boom 53 Branch manifold 58 Lifting link 59 Exhaust port E Engine

Claims (3)

  A self-propelled vehicle that has a spray boom (9) at the front of the vehicle body (1) and a chemical tank (5) at the rear of the vehicle body (1) and that can run on the left and right front wheels (3, 3) and left and right rear wheels (4, 4) In the type control machine, the branch manifold (53) is provided in the vicinity of the rear of the spray boom (9) when the branch manifold (53) for branching and feeding the chemical solution to the spray boom (9) is provided. Traveling control machine.   The self-propelled pest control machine according to claim 1, wherein the branch manifold (53) is provided on a lifting link (58) for lifting and lowering the spray boom (9).   The self-propelled pest control machine according to claim 1 or 2, wherein the branch manifold (53) is provided on the opposite side of the exhaust port (59) from the engine (E) with respect to the center of the fuselage. .

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