JP2008079574A - Pest-control machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pest-control machine that solves the problem that when there is a strong wind in a pesticide-spraying operation by a boom sprayer, the extent of pesticide reaching an object to be sprayed, such as crops, is lowered leads to less effect of the adherence of the pesticide to the object, tending to cause spray unevenness and being difficult to maintain uniform sprayed pesticide adherence to, or disinfection of the objects, causing lowering of the pesticide spray efficiency. <P>SOLUTION: A boom sprayer has a nozzle boom 2 provided at a vehicle body 4, and a wind direction sensor 1 for detecting wind direction provided at the vehicle body 4 or the nozzle boom 2, and a spray nozzle 3 at the nozzle boom 2. The spraying direction is changeably controlled by changing the direction of the spray nozzle 3, based on the detection result of wind direction by the sensor 1, or by moving the nozzle boom 2, based on the detection result of wind direction. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a boom sprayer that changes and controls the spray direction of a spray nozzle in accordance with the wind direction during spraying.

A configuration of a boom sprayer in which a nozzle boom in which a large number of spray nozzles are arranged is provided so as to project laterally with respect to the tractor vehicle body, and a predetermined width of drug spray is performed while the tractor is running (see, for example, Patent Document 1) is known. Yes. It is also known that the nozzle boom is configured to be pivotable so as to be along the side of the vehicle body during non-spraying action.
Japanese Patent Laid-Open No. 10-108609 (second page, FIG. 2)

  If there is a strong wind when spraying with a boom sprayer, the level of spraying of the drug on the sprayed object such as crops will be reduced, and the adhesion effect of the drug on the sprayed object will be diminished, and uneven spraying will easily occur. Spray adhesion or disinfection is difficult to maintain and spray efficiency is reduced. Moreover, depending on the wind direction during work, the medicine is scattered to the worker.

  The invention according to claim 1 is a boom sprayer in which a nozzle boom 2 is provided on a vehicle body 4, a wind direction sensor 1 for detecting a wind direction is provided on the vehicle body 4 or the nozzle boom 2, and a spray nozzle 3 is provided on the nozzle boom 2. The boom sprayer is characterized in that the direction of the spray nozzle 3 is changed based on the detection result of the wind direction by the wind direction sensor 1 to change and control the spray direction.

  The chemical solution is sprayed from the spray nozzles 3 of the nozzle boom 2 as the vehicle body travels, and the stretched area of the nozzle boom 2 is sprayed. At this time, when the wind direction sensor 1 detects the wind direction, the spray direction of each spray nozzle 3 of the nozzle boom 2 is changed to be directed in the direction opposite to the wind direction, and spraying is performed against the wind direction and wind pressure. In the form, the nozzle injection direction of the spray nozzle 3 is controlled so as to increase the direct spray pressure on the spray object such as crops.

  The invention according to claim 2 is a boom sprayer in which a nozzle boom 2 is provided on a vehicle body 4, a wind direction sensor 1 for detecting a wind direction is provided on the vehicle body 4 or the nozzle boom 2, and a spray nozzle 3 is provided on the nozzle boom 2. The boom sprayer has a configuration in which the spray direction is changed and controlled by moving the nozzle boom 2 based on the detection result of the wind direction by the wind direction sensor 1.

  In the spraying operation as described above, when the wind direction sensor 1 detects the wind direction, the spray direction of the nozzle boom 2 in which a large number of spray nozzles 3 are arranged is changed to be directed to the direction opposite to the wind direction, The nozzle spraying direction of the nozzle boom 2 is controlled so as to increase the spraying pressure on the spraying object in the form of spraying against this wind direction.

  According to a third aspect of the present invention, a boom sprayer in which a nozzle boom 2 is provided on a vehicle body 4, a wind direction sensor 1 for detecting a wind direction is provided on the vehicle body 4 or the nozzle boom 2, and a spray nozzle 3 is provided on the nozzle boom 2. The boom sprayer is configured to change and control the spray position by moving the nozzle boom 2 in the front-rear direction of the vehicle body 4 based on the detection result of the wind direction by the wind direction sensor 1.

In the spraying operation as described above, when the wind direction sensor 1 detects the wind direction, the nozzle boom 2 having a large number of spray nozzles 3 is moved to a front or rear direction position with respect to the vehicle body 4.
For example, the nozzle boom 2 moves to a position behind the driver's seat when the wind is on the opposite side, and conversely moves to the front position when the tailwind is on the nozzle boom 2 so that the spray chemical does not scatter to the operator boarding the driver's seat. In position, spray work. At this time, as described above, the spraying direction of the spray nozzle 3 is changed so as to be directed in the direction opposite to the wind direction, and spraying is performed against the wind direction and the pressure on the spray target. It is also possible to control the nozzle injection direction of the nozzle boom 2 so as to increase the pressure.

  According to the first aspect of the present invention, the spray pressure on the spray target is controlled by rotating the spray nozzle 3 with respect to the nozzle boom 2 and controlling the direction of spraying by the nozzle 3 in a form against the wind direction. This can increase the spray area and maintain uniform spray adhesion. In addition, since the chemical solution does not flow in the direction other than the crop due to the wind, it is possible to prevent the chemical solution from scattering to the worker.

As described above, the invention according to claim 2 can increase the spray pressure on the spray object, widen the spray area, and maintain uniform spray adhesion, and by moving control as the nozzle boom 2, This spray direction control can be easily configured and easily performed. Further, since the chemical liquid does not flow in the direction other than the crops due to the wind, it is possible to prevent the chemical liquid from being scattered to the worker. By moving, a sanitary spraying operation can be performed in a state where the spray chemical does not scatter in the driver's seat. Since the position control of the nozzle boom 2 is automatically performed by detecting the wind direction of the wind direction sensor 1, these operations are simplified and facilitated to improve operability.

Embodiments of the present invention will be described with reference to the drawings.
The boom sprayer has a nozzle boom 2 in which a large number of spray nozzles 3 are arranged on the front side of the tractor vehicle body 4 on both the left and right sides in a projecting form, and pumps the chemical solution stored in the chemical tank 5 mounted at the rear of the vehicle body 4. Is to be sent and sprayed.

  The tractor vehicle body 4 has a front wheel 7 that travels by a steering handle 6 and a rear wheel 8, and is configured in a four-wheel traveling form that is driven by an engine 10 that is mounted under a front bonnet 9.

  The chemical liquid tank 5 is formed to surround the left and right sides from the rear part of the driver's seat 11 and is mounted on the rear end part of the vehicle body 4, and the chemical liquid pump 12 mounted on the rear part is driven from the PTO shaft of the tractor. The chemical solution is sent to the nozzle boom 2 through the hose by driving 12.

  A boom mounting bracket 13 is provided at the front portion of the tractor vehicle body 4, and a center boom 2 </ b> C as a nozzle boom 2 having a length that extends substantially across the width of the left and right wheels is disposed on the front side of the boom mounting bracket 13. A side boom 2 </ b> S is arranged as a nozzle boom 2 that is located outside 2 </ b> C and projects to the left and right sides. The center boom 2C is fixed at a fixed position with respect to the boom mounting bracket 13, but the side boom 2S is rotated around the boom rotation shaft 15 with respect to the boom mounting bracket 13 by the expansion and contraction of the telescopic cylinder 14. It is possible to switch between the spray state A projecting in the lateral direction and the storage state B along the lateral side of the vehicle body 4.

  Here, the boom sprayer according to the present invention is characterized in that the spray direction of the spray nozzle 3 provided in the nozzle boom 2 is changed and controlled by the wind direction sensor 1 that detects the wind direction. The chemical solution is sprayed from the spray nozzles 3 of the nozzle boom 2 as the vehicle body travels, and the stretched area of the nozzle boom 2 is sprayed. At this time, when the wind direction sensor 1 detects the wind direction, the spray direction of each spray nozzle 3 of the nozzle boom 2 is changed so as to be directed in the direction opposite to the wind direction to resist the wind direction and the wind pressure during work. The spray direction of the spray nozzle 3 is controlled so as to increase the direct spray pressure on the spray target such as crops.

  The spray nozzles 3 are arranged at predetermined intervals on each nozzle boom 2. The spray nozzle 3 forms a spherical nozzle body 16, and the spray nozzle 3 is formed in a holder hole 18 formed in the nozzle holder 17. The spray nozzle 3 can be rotated back and forth and left and right by fitting and holding the three nozzle bodies 16 rotatably. Each spray nozzle 3 is formed so as to pass through the central portion of the nozzle body 16, and a flexible liquid chemical hose 19 is connected to the base portion. As a mechanism for changing the direction of the spray nozzle 3, driving rollers 20 and 21 driven by control motors Mx and My appropriately supported by the nozzle holder 17 are contacted to the outer peripheral surface of the nozzle body 16. I am letting. If the holding direction of the nozzle holder 17 is a horizontal plane direction and the spray destination of each spray nozzle 3 is a downward vertical direction, the drive roller 20 by the control motor Mx rotates the nozzle body 16 in the left and right directions parallel to the nozzle boom 2. In addition, the drive roller 21 driven by the control motor My is configured to rotate in the front-rear direction orthogonal thereto.

  In this way, the direction of the spray nozzle 3 can be controlled to rotate in the front-rear and left-right directions. Each nozzle holder 17 arranged along the nozzle boom 2 has a split-shaped configuration in which a half-moon shaped holder hole 18 is formed, and the nozzle body 16 is sandwiched between the holder holes 18 between the pair of nozzle holders 17. Hold and install with screws 22 stops. In the nozzle boom 2, a chemical pipe 23 is laid as a main pipe, and the hose 19 is connected to the pipe 23. The pair of nozzle holders 17 are connected to each other by a connecting plate 24 to fix the shape of the holder hole 18.

  Each of the control motors Mx and My is performed by an output from the controller 25. A wind direction sensor 1 is provided on the outer end of the side boom 2S or on the vehicle body 4, and this wind direction sensor 1 detects the wind direction during work and simultaneously this wind force. Further, as shown in FIG. 1, a wind sensor 26 may be separately provided together with the wind direction sensor 1. Detection information of the wind direction sensor 1 and the wind sensor 26 is always output to the controller 25.

  When spraying in the form in which each side boom 2S is extended, the wind direction sensor 1 always detects the wind direction and the wind force. When this wind force becomes stronger than a certain level, the control motors Mx and My are driven to move the wind direction. Then, the spray nozzle 3 is rotated so that the spray direction of the spray nozzle 3 is directed in a direction against the wind force. The rotation amount or the rotation angle of the spray nozzle 3 by this control is performed so as to increase according to the wind force at this time. Further, the spray pressure or the spray amount by the spray nozzle 3 at this time can be controlled to increase or increase according to the wind force.

  When performing disinfection of the crop W on the basket D in the field, when there is no wind or a slight wind as shown in FIG. 1, the wind direction sensor 1 hardly detects wind direction and wind force. It is directed in the direction T directly below the boom 2. Accordingly, the spray state ejected from each spray nozzle 3 is effectively performed in the direction directly below. For example, when the wind force F acts from the left to the right side, the detection by the wind direction sensor 1 and the wind sensor 26 outputs the control motor Mx to rotate the drive roller 20, and the nozzle body 16 and the spray nozzle 3 are moved. It is rotated about an angle f as appropriate in the left L direction against the wind force F. As a result, the spray state injected against the wind force is directed directly downward, and the spray region can be maintained in an appropriate state.

  The boom sprayer according to the present invention is characterized in that the spray direction is changed and controlled by moving the nozzle boom 2 by the wind direction sensor 1 for detecting the flow of wind. In the spraying operation as described above, when the wind direction sensor 1 detects the wind direction, the spray direction of the nozzle boom 2 in which a large number of spray nozzles 3 are arranged is changed to be directed to the direction opposite to the wind direction, The nozzle spraying direction of the nozzle boom 2 is controlled so as to increase the spraying pressure on the spraying object in the form of spraying against the wind direction and the wind pressure.

  As shown in FIG. 7, the attachment portions of the left and right side booms 2S to the boom bracket 13 support the boom shaft 31 of the side boom 2S base so that the boom boss 30 integral with the boom rotation shaft 15 can rotate. The spray direction can be controlled by the forward / reverse rotation motor M so that the spray nozzle 3 is rotated in the forward / backward direction by an appropriate angle. The boom bracket 13 is provided with a support boss 32, and a boom boss 30 that supports the side boom 2 </ b> S is rotatably supported by the support boss 32. When the wind direction sensor 1 detects the wind force in the front-rear direction parallel to the vehicle body traveling direction, the control motor M is output by the output from the controller 25 to rotate the side boom 2S by an appropriate angle. Such control of the spraying direction of the spray nozzle 3 can be configured to be performed instead of the control of the front and rear direction of the spray nozzle 3 by the control motor My.

  Next, mainly based on FIGS. 8 and 9, the boom sprayer according to the present invention controls the spray position by moving the nozzle boom 2 in the front-rear direction of the vehicle body 4 by the wind direction sensor 1 that detects the flow of the wind. It is characterized by that. In the spraying operation as described above, when the wind direction sensor 1 detects the wind direction, the nozzle boom 2 having a large number of spray nozzles 3 is moved to the front and rear direction positions with respect to the vehicle body 4.

  For example, the nozzle boom 2 moves to a position behind the driver's seat when the wind is on the opposite side, and conversely moves to the front position when the tailwind is on the nozzle boom 2 so that the spray chemical does not scatter to the operator boarding the driver's seat. In position, spray action. At this time, as described above, the spraying direction of the spray nozzle 3 is changed so as to be directed in the direction opposite to the wind direction, and spraying is performed against the wind direction and the pressure on the spray target. It is also possible to control the nozzle injection direction of the nozzle boom 2 so as to increase the pressure.

  Guide rails 35 are arranged along the front-rear direction on the left and right outer sides of the vehicle body 4, and a slider 36 at the base of the side boom 2S is supported on the guide rail 35 so as to move and guide in the front-rear direction. The slider 36 supports the side boom 2S projecting sideways and is equipped with a control motor M2 and is connected to a roller driven by the motor M2 or an endless chain (not shown) driven by a pinion. The slider 36 is configured to be slidable along the guide rail 35 by driving the control motor M2 forward or backward.

  The motor M2 is driven by the output from the controller 25, so that the rollers are driven to move and control the position of the side boom 2S in the front-rear direction. Normally, the left and right side booms 2S are positioned at the front end of the vehicle body 4 to perform the spraying operation. However, when the wind direction sensor 1 detects the wind direction from the front, the left and right side booms 2S are located behind the driver's seat 11. Move to R and spray.

  On the contrary, in this state, when detecting the tailwind direction from the back side, the side boom 2S is moved to the front side from the driver's seat 11 to avoid the driver from being directly splashed with the chemical liquid. is there. Moreover, in this form, the form which controls the injection direction of the spray nozzle 3 as mentioned above, or rotates the side boom 2S can also be combined.

  The above movement control is performed when the mode changeover switch 37 is in the “automatic” position, and when the switch 37 is in the “manual” position, the control motor M2 operates the manual switches 38F and 38R to operate the front side. The control motor M2 stops at a position where the pushing operation of the switches 38F and 38R is released, and the side boom 2S is also stopped at that position. In addition, one manual switch 38F and 38R each operate the left and right side booms 2S at the same time, and each of the left and right side booms 2S can be configured with a manual switch, or can be moved by the left / right selection switch 39. The boom 2S may be selected and set, and the boom selected by the previous manual switches 38F and 38R may be moved.

  H is a display that is configured to display detection results of the wind direction sensor 1 and the air volume sensor 26. The wind direction indicates the direction of the wind with an arrow or the like regardless of whether the aircraft is turning or not, so that the operator can easily confirm it visually. The air volume may be displayed numerically or in the form of a stacked bar graph, and there are various other methods.

  Next, by providing the air volume sensor 26, when the air volume becomes stronger than a predetermined range, the medicine scattering becomes large, and the display unit H displays that the scattering is impossible to continue, Reduce unnecessary labor for workers.

  Next, mainly based on FIGS. 10 to 13, when a crop sensor 40 including a switch for detecting the stock portion of the crop W is provided at the front end of the vehicle body 4, the crop sensor 40 detects the stock stock. Is calculated from the traveling speed of the vehicle body 4, the time to reach the position of the crop W, etc., and the chemical solution, liquid fertilizer, etc. are sprayed only in necessary places. Is. The crop sensor 40 and the vehicle speed sensor 41 for detecting the traveling speed of the vehicle body 4 are provided in the controller 42 that opens and closes the spray control valve 43 that sends the chemical solution to be sprayed from the nozzle 2. The spray control valve 43 is opened while measuring the timing of the ejection of the chemical solution from the spray nozzle 2 by detection, and the opening degree is increased to spray the crop W position efficiently and with little waste.

  In addition, in the chemical solution spraying, as shown in FIG. 12, the approximate number of crops per counter-attack is calculated from the crop interval by detection by the crop sensor 40, and the amount of the chemical solution sprayed at once by the given spraying amount is calculated. Control. And a required quantity is sprayed to a required place, and an efficient chemical | medical solution spray is performed.

  Further, as shown in FIG. 13, when the crop sensor 40 detects the crop W, the chemical solution spraying is automatically started, and when it is not detected, the spraying is stopped, so that the spraying operation starts and ends. It is possible to eliminate the non-spreading section and to spray evenly.

  Next, mainly based on FIG. 14, a sampling robot arm 45 for collecting a part of soil is provided at the front end of the vehicle body 4. While sampling the soil, component analysis of the soil is performed, and the fertilizer application amount is controlled according to the location. It is intended to homogenize soil nutrients.

  Next, mainly based on FIG. 15, in the tractor vehicle body 4 used for the boom sprayer or the like, a plate-shaped sliding sensor 50 that is in sliding contact with the heel D slope N at the front wheel 7 tread portion and the rear wheel 8 tread portion, 51 is provided. These sliding sensors 50 and 51 support the sensor shaft 55 on a sensor boss 54 attached to the front axle housing 52, the rear axle housing 53, etc. on the vehicle body 4 side so that the sliding sensors 50 and 51 can be rotated. The rotation angle of the sensor shaft 55 relative to the sensor boss 54 is detected by a potentiometer or the like by appropriately slidingly rotating over the rotation range through a damper spring or the like on the left slope N of the flange D. The distance from the slope surface N is detected, and the traveling direction of the vehicle body 4 with respect to the work rod D is detected. When the vehicle body 4 travels, the vehicle body 4 travels with the posture across the work rod D and the sliding sensors 50 and 51 attached to the abdomen before and after sliding on the slope surface N.

  When the vehicle body 4 is in a straight traveling state, the front wheel 7 and the rear wheel 8 are in a parallel state along the front-rear direction, so that the front and rear sliding sensors 50 and 51 are both in sliding contact with the slope surface N as appropriate. It is in. Further, for example, in the case of turning counterclockwise, when the steering mode is the FWS mode performed by the turning angle of the front wheel 7, the sliding sensor 50 on the front wheel 7 side is separated from the slope surface N. The sliding sensor 51 is in sliding contact with the slope surface N. Further, when the 4WS mode in which the front wheel 7 and the rear wheel 8 are turned in the normal and reverse angles is operated, the front sliding sensor 50 is separated from the slope surface N and the rear sliding is performed. The sensor 51 is strongly pressed by the slope surface N. Further, in the CWS mode in which the front wheel 50 and the rear wheel 51 are both turned in the same direction, the front and rear sliding sensors 50 and 51 are both separated from the slope surface N. Therefore, in agricultural management work machines, there are many tractors of a form that can be operated by selecting such a plurality of steering modes, but as described above, the straight traveling state TS of the current work traveling, Each steering mode 4WS, FWS, or CWS can be detected, and by displaying this detection state on the operation monitor, it can be easily confirmed whether the current operation mode is appropriately selected.

The front view (b) of a boom sprayer, the front view (b) which shows the state of the spray nozzle part, and the perspective view (c) of a wind direction and a wind sensor. The side view which shows the state which accommodated the side boom. The perspective view (a) which shows the control form of a spray nozzle part, a front view (b), a side view (c), and a top view (d). An exploded perspective view of the spray nozzle part (a), an assembly explanatory perspective view (b) of the nozzle holder, a perspective view (c) showing a state of attachment to the nozzle boom, and a side view (d) The block diagram of spray direction control of a spray nozzle. The front view (b) of the boom sprayer which shows a spray control state, and the front view (b) which shows the state of a spray nozzle part. The perspective view of the rotation support part of the side boom which shows a part another example. The top view of the movement control of the side boom which shows the other example partially. The block diagram of the movement control. The side view of the boom sprayer which shows some other examples, and the block diagram of spray control. Part of the front view. The flowchart of the partial control. The flowchart of the partial control. The side view of the boom sprayer which shows a part another example. The top view (A) which shows the driving | running | working state thru | or steering mode of a tractor vehicle body part, and the partial side view (B).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wind direction sensor 2 Nozzle boom 3 Spray nozzle 4 Car body 5 Chemical solution tank

Claims (3)

  The vehicle body (4) is provided with a nozzle boom (2), the vehicle body (4) or the nozzle boom (2) is provided with a wind direction sensor (1), and the nozzle boom (2) is provided with a spray nozzle (3 The boom sprayer is characterized in that the spray direction is controlled by changing the direction of the spray nozzle (3) based on the detection result of the wind direction by the wind direction sensor (1).   The vehicle body (4) is provided with a nozzle boom (2), the vehicle body (4) or the nozzle boom (2) is provided with a wind direction sensor (1), and the nozzle boom (2) is provided with a spray nozzle (3 The boom sprayer is characterized in that the spray direction is changed and controlled by moving the nozzle boom (2) based on the detection result of the wind direction by the wind direction sensor (1).   The vehicle body (4) is provided with a nozzle boom (2), the vehicle body (4) or the nozzle boom (2) is provided with a wind direction sensor (1), and the nozzle boom (2) is provided with a spray nozzle (3 ), The spray position is changed and controlled by moving the nozzle boom (2) in the front-rear direction of the vehicle body (4) based on the detection result of the wind direction by the wind direction sensor (1). Boom sprayer.

Images