JP2013244473A - Device for setting air quantity of speed sprayer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve adaptability and further flexibility to various objects to be sprayed by enabling precise chemical spray to various objects to be sprayed different in height (apple tree, grapevine trellis, etc.) based on optimal air quantity respectively.SOLUTION: A device for setting the air quantity of a speed sprayer for setting the air quantity Wf when chemicals sprayed from a plurality of spray nozzles N are sprayed within a predetermined range in a radiation direction containing at least the upward side by blast from a ventilation part includes: one, or two or more air control plates P disposed so as to allow displacement to blast toward the upward side on the upstream side of a blast direction Fw relative to spray nozzles N and capable of changing the air quantity Wf passing through by displacement; an actuator 3 for displacing these air control plates P; and a drive control means 4 for controlling drive of the actuator 3.

Description

  The present invention relates to an air volume setting device for a speed sprayer that sets an air volume when spraying a chemical solution injected from a plurality of injection nozzles in a predetermined range by blowing air from a blowing section.

  Conventionally, as a speed sprayer that sprays the chemicals sprayed from a plurality of spray nozzles to a predetermined range in the radial direction including at least the upper part by blowing air from the blowing unit, and can regulate the spraying to a specific range as necessary. Speed sprayers disclosed in Patent Documents 1 and 2 are known.

  The speed sprayer disclosed in the same document 1 is arranged in a rotatable manner around a rotational axis in the front-rear direction in the jet head, and is arranged in the circumferential direction of the jet head to eject a spray liquid. And a plurality of air guide plates disposed radially inside the nozzle so as to be rotatable around a rotation axis in the front-rear direction different from the rotation axis of the nozzle, The nozzle link means for rotating and the wind guide plate link means for rotating a plurality of wind guide plates in conjunction with each other, and the speed disclosed in the same document 2 The sprayer arranges main pipes for supplying a chemical solution to the left and right side surfaces of the vehicle body along the opening edge of the rectifying unit, and a plurality of movable branch pipes communicating with the main pipes with their axes directed in the front-rear direction of the vehicle body and Deviation from the center of the flow path of the main pipe, for a predetermined time in the main pipe direction In each movable branch pipe, a nozzle communicating with the main pipe is provided, and one end side of the link arm is fixed to the end of each movable branch pipe, and between the other end sides of the link arms of the adjacent movable branch pipes Are connected by a link rod, and a drive mechanism is provided for rotating the movable branch pipe about the axis by rotating the link arm by pushing the link rod and swinging the link arm.

JP-A-8-66646 Japanese Patent Laid-Open No. 2000-4760

  However, the conventional speed sprayer described above has the following problems to be solved.

  First of all, spraying chemicals to use the function of changing the spraying direction of chemicals depending on the state of the spraying place, such as the edge of a field with fruit trees only on one side, the growth state (height state) of fruit trees, or sloping ground Although the purpose can be achieved from the viewpoint of regulating the above, the following problems also occur. That is, as shown in FIG. 6, the speed sprayer normally sets the air volume and spray direction so that a sufficient amount of chemical solution can be sprayed even on a fruit tree having a relatively high height such as the apple tree Ta. For this reason, when a chemical solution is sprayed onto a fruit tree or the like having a low height like the grape shelf Tb, there is a possibility that the air volume is too strong and the fruit tree is damaged. At this time, if the spraying itself is restricted as in the conventional case, the original chemical spraying cannot be performed. Therefore, if the amount of the chemical liquid to be sprayed can be set to an appropriate amount while ensuring the original amount, the spray mode is desirable. However, the conventional speed sprayer cannot cope with such a spray mode, and various sprays can be used. It is not necessarily sufficient from the viewpoint of adaptability to a target object and further versatility.

  Secondly, the fruit trees to be sprayed include various fruit trees including the apple tree Ta and the grape shelf Tb shown in FIG. 6, and the farmer often owns a plurality of different orchards. Also, there are various varieties among the same kind of fruit trees. For example, the heights of the grape shelves Tb (spray objects) are not all the same. Therefore, if the air volume is finely adjusted according to the state (situation) at the time of spraying and the spray can be optimized according to the height of the spray object, more ideal spray can be performed. The conventional speed sprayer does not meet such a demand, and there is room for further improvement from the viewpoint of more ideal spraying.

  An object of the present invention is to provide an air volume setting device for a speed sprayer that solves such problems in the background art.

  In order to solve the above-described problem, the air volume setting device 1 of the speed sprayer M according to the present invention is configured so that the chemical solution injected from the plurality of injection nozzles N. When configuring the air volume setting device that sets the air volume Wf when spraying to the range, the air volume setting device is arranged so as to be displaceable with respect to the upward air flow upstream of the air blowing direction Fw with respect to the injection nozzle N. One or two or more wind control plates P that can change the air volume Wf, an actuator 3 that displaces these wind control plates P, and drive control means 4 that drives and controls the actuator 3 are provided. Features.

  In this case, according to a preferred aspect of the present invention, the wind control plates P can be rotatably supported at one end by the rotation shafts 11 and the rotation shafts 11 are connected via the link mechanisms 12. The other pivot shafts 11 can be configured to be interlocked with each other. Moreover, the wind control plate P ... can be provided with one or more openings Po ... and / or one or more notches Pc ... that allow passage of air flow. Further, the drive control means 4 can be provided with a manual operation unit 13 capable of setting the displacement amount of the wind control plate P ... by manual operation, and the spray nozzle N ... and the spray by the non-contact type distance measuring sensor 14s. Automatic setting having a controller 14b that can detect distances La and Lb between objects (apple tree Ta, grape shelf Tb, etc.) and can automatically set the displacement of the wind control plate P ... in accordance with the detected result. A portion 14 can be provided.

  According to the air volume setting device 1 of the speed sprayer M according to the present invention having such a configuration, the following remarkable effects can be obtained.

  (1) One or two or more wind control plates P that are displaceably arranged with respect to the upward air flow upstream in the air blowing direction Fw with respect to the injection nozzles N and that can change the amount of air Wf that passes by the displacement. And an actuator 3 for displacing these wind control plates P and a drive control means 4 for driving and controlling the actuator 3, so that various spray objects (apple tree Ta, grape shelf) having different heights are provided. For example, it is possible to perform appropriate chemical spraying based on the optimum air volume for Tb or the like, and to improve adaptability to various spray objects and further versatility.

  (2) If one end side of the wind control plate P is rotatably supported by the rotation shafts 11 according to a preferred embodiment, the wind control plate P is configured with the simplest structure in terms of structure and control. Therefore, it is possible to contribute to cost reduction and downsizing at the time of implementation.

  (3) If the rotation shafts 11 are configured to be interlocked with the other rotation shafts 11 through the link mechanisms 12 according to a preferred embodiment, the number of actuators 3 to be used can be reduced. In addition to contributing to further cost reduction and downsizing, the displacement of each of the wind control plates P can be reliably and easily synchronized.

  (4) According to a preferred embodiment, if one or two or more openings Po ... and / or one or more notches Pc ... that allow passage of air flow are provided on the wind control plates P ... When the wind plate P is displaced to the closing position Xc perpendicular to the blowing direction Fw, the minimum air volume can be set stably and accurately, and the injection nozzle can be selected by selecting the position, shape and size to be provided. It is possible to easily and accurately optimize the function (action) of the wind control plate P with respect to the position and direction of N.

  (5) According to a preferred embodiment, if the drive control means 4 is provided with a manual operation unit 13 capable of setting the displacement amount of the wind control plate P ... by manual operation, for example, the wind control plate P ... Since the amount of displacement can be set arbitrarily, the convenience for the user can be enhanced, for example, the optimum air volume corresponding to the state of the spray object can be set easily and flexibly.

  (6) According to a preferred embodiment, the drive control means 4 detects the distances La and Lb between the spray nozzle N... And the spray object (apple tree Ta, grape shelf Tb, etc.) by the non-contact type distance measuring sensor 14s. If the automatic setting unit 14 having the controller 14b capable of automatically setting the displacement amount of the wind control plate P ... according to the detected result is provided, the optimum corresponding to the state (height state) of the spray target object is provided. Since a simple air volume is automatically set, it is possible to contribute to improvement of convenience for the user. In addition, since it is possible to avoid the problem that the chemical liquid is sprayed while an inappropriate air volume is set due to forgetting to set (setting omission) or the like, fruit trees can be protected by using as a safety device.

The block diagram which shows the whole air volume setting apparatus which concerns on suitable embodiment of this invention, Plan view block diagram of a chemical spray mechanism equipped with the same air volume setting device, Rear view of the chemical spray mechanism equipped with the same air volume setting device, Configuration diagram of a manual operation unit including a setting mode switching unit in the same air volume setting device, The perspective view which shows the principal part of the same air volume setting apparatus, An overall side view of a speed sprayer comprising the same air volume setting device; Operation explanatory diagram of the same air volume setting device,

  Next, preferred embodiments according to the present invention will be given and described in detail with reference to the drawings.

  First, in order to facilitate understanding of the present invention, a schematic configuration of a speed sprayer M including an air volume setting device 1 according to the present embodiment will be described with reference to FIG.

  In the speed sprayer M, reference numeral 30 denotes a chassis. The chassis 30 includes a pair of left and right front wheels 31 on the front side, and a pair of left and right rear wheels 32 on the rear side. In addition, the body 33 on the chassis 30 includes a driver's seat 34 in the front, and the front panel 35 in front of the driver's seat 34 includes necessary vehicle equipment such as a lighting device such as a headlight and a rearview mirror. . Further, a chemical room 36 and a machine room such as an engine room are mounted behind the driver's seat 34 and a chemical spray mechanism 37 is provided behind the machine room.

  The chemical spray mechanism 37 includes the blower unit 2 having a blower 42 (FIG. 3) covered with a wind tunnel 41, and an injection space S is provided between the blower unit 2 and the chemical solution tank 36. The wind tunnel 41 constitutes a part of the body 33. In the injection space S, a guide vane (wind guide plate) 44 and a large number of injection nozzles N arranged along the guide vane 44 are arranged. In this case, each of the injection nozzles N is disposed so as to be sprayable in three directions, upper, right and left, and the chemical liquid injected from each of the injection nozzles N is discharged from the injection space S by the air blown from the blower unit 2. Sprayed in a predetermined range in the radial direction. At this time, the spray nozzle N ... disposed on the right side sprays rightward, and the spray nozzle N ... disposed on the left side sprays leftward. Furthermore, it sprays upwards from the six injection nozzles N arranged on the upper side. And the air volume setting apparatus 1 which concerns on this embodiment is attached with respect to this chemical | medical solution spray mechanism 37, especially the six injection nozzles N ... arranged on the upper side.

  Next, the configuration of the air volume setting device 1 according to the present embodiment will be specifically described with reference to FIGS.

  The air volume setting device 1 includes a plurality of (e.g., eight) air control plates P, each of which includes six injection nozzles N arranged on the upper side as shown in FIGS. It arrange | positions so that it can displace with respect to the ventilation which goes upwards in the upstream of the ventilation direction Fw with respect to. The passing air volume Wf can be changed by the displacement of these wind control plates P. In the case of the example, as shown in FIG. 2, the six injection nozzles N arranged on the upper side are configured by symmetrically arranging three injection nozzles N on the left and right, respectively, so that the air volume setting device 1 is also symmetrical. Two arranged air volume setting units Up and Uq are provided and configured.

  The right air volume setting unit Up includes two rotating shafts 11 having axial centers in the front-rear direction, and one end side of the two wind control plates P is aligned and fixed in front of and behind the respective rotating shafts 11. As a result, each of the wind control plates P is disposed below (upstream side) the injection nozzles N and is rotatably supported by the rotating shafts 11. In this way, if one end side of the wind control plates P is rotatably supported by the rotary shafts 11, the wind control plates P can be displaced with the simplest structure in terms of structure and control. Therefore, there is an advantage that it can contribute to cost reduction and downsizing at the time of implementation.

  Each wind control plate P is provided with one or two or more openings Po, and / or one or more notches Pc, which allow passage of air flow. In particular, each opening Po ... and / or each notch Pc ... is formed at a position directly below each injection nozzle N ... as shown in Figs. 2 and 3, and the shape and size are selected. The minimum air volume when the wind control plate P is displaced to the closing position Xc perpendicular to the blowing direction Fw is set. Specifically, as shown in FIG. 6, when a grape shelf Tb is assumed as the lowest spray object, each opening Po ... and / or each notch that is most optimal for this grape shelf Tb is shown. The position, shape, and size of the portion Pc... Can be selected. Thus, if each wind control plate P ... is provided with one or more openings Po ... and / or one or more notches Pc ... that allow the passage of air flow, in particular, the wind control plate P ... is displaced to the closing position Xc perpendicular to the blowing direction Fw, the minimum air volume can be set stably and accurately, and by selecting the position, shape and size to be provided, the injection nozzle N ... There is an advantage that the function (action) of the wind control plate P... Can be easily and accurately optimized with respect to the position and direction, and the amount of the chemical liquid to be injected.

  Further, the one rotation shaft 11 is configured to be interlocked with the other rotation shaft 11 via the link mechanism 12. When the link mechanism 12 has one side (long side) between one rotary shaft 11 and the other rotary shaft 11, the first link 12a and the second link 12b which are short sides, and the third side which is a long side. A link 12c is added to form a parallel link forming a parallelogram. As described above, if the rotation shaft 11 is configured to be interlocked with the other rotation shafts 11 through the link mechanism 12, the number of actuators 3 to be used can be reduced, so that the cost and size can be reduced. There is an advantage that the displacement of each of the wind control plates P can be reliably and easily synchronized.

  On the other hand, an actuator 3 for displacing the wind control plates P is disposed. As the actuator 3, a linear type electric actuator 51 is used. In this case, the rear end portion of the electric actuator 51 is rotatably coupled to the wind tunnel 41 via the rotation shaft 52, and the tip of the plunger portion 51 p protruding from the front end of the electric actuator 51 is the rotation shaft 53. The second link 12b is rotatably coupled to the intermediate position of the second link 12b. The air volume setting unit Up disposed on the right side has been described above, but the air volume setting unit Uq disposed on the left side is configured in the same manner as the air volume setting unit Up except that it is configured symmetrically with respect to the air volume setting unit Up.

  In addition, drive control means 4 for driving and controlling the actuator 3 (electric actuator 51...) Is provided. A block system diagram of the drive control means 4 is shown in FIG. The drive control means 4 includes a controller 14b using a microcomputer or the like. An internal memory 14bm is attached to the controller 14b. The internal memory 14bm includes a program area 14bmp for storing a sequence program for causing the automatic setting unit 14 described later to function, various parameters, height data up to the spray target, A data area 14bmd in which various data such as conversion data between the displacement amounts of the corresponding wind control plates P ... are registered is included.

  On the other hand, the above-described electric actuators 51 (actuator 3) are connected to the driver output port of the controller 14b via the driver 54. Further, as shown in FIG. 6, an operation unit 55 (FIG. 4) is provided on the dashboard of the driver's seat, and this operation unit 55 is connected to the input port of the controller 14b. In this case, the operation unit 55 includes the manual operation unit 13 that can arbitrarily set the displacement amount of the wind control plate P ... by manual operation (manual mode), and in addition to the manual operation unit 13, an automatic mode and a manual operation are provided. A mode switching unit 55c for switching modes is provided. An example of the operation unit 55 is shown in FIG. The operation unit 55 includes an operation knob 55s. In the operation area of the manual operation unit 13 provided on one side of the operation knob 55s, the operation knob 55s can be manually rotated. The displacement amount of the wind control plate P can be arbitrarily set. For example, when the height from the ground to the spray target is set on the scale 56, the user can set an appropriate air volume Wf with the height as a guide 56. The example shows a case where the minimum scale is displayed as 1.5 [m] and the maximum scale is displayed as 7.0 [m] as an example. As described above, if the drive control means 4 is provided with the manual operation unit 13 capable of setting the displacement amount of the wind control plates P ... by manual operation, for example, the displacement amount of the wind control plates P ... can be arbitrarily set in the driver's seat or the like. Therefore, there is an advantage that the convenience for the user can be improved, such as the ability to easily and flexibly set the optimum air volume corresponding to the state of the spray object.

  On the other hand, it is possible to switch to the automatic mode by rotating the operation dial 55s from the position of the minimum scale to the opposite side. In the illustrated example, the automatic mode indicates a case where a plurality of automatic modes with different parameters, specifically, a standard automatic mode An, a weak automatic mode A1, and a strong automatic mode A2, can be selected. Therefore, in this case, if the weak automatic mode A1 is selected, the air volume Wf is controlled to be smaller for the same height in the standard automatic mode An, and if the strong automatic mode A2 is selected, the standard automatic mode An is selected. The air volume Wf is controlled to be larger for the same height at.

  Further, as shown in FIG. 6, at the upper end of the body 33, the distance (La, Lb) between the spray nozzles N ... arranged on the upper side and the spray object (apple tree Ta, grape shelf Tb) is detected. A contact-type distance measuring sensor 14s is provided, and the distance measuring sensor 14s is connected to a sensor input port of the controller 14b. Thus, the distance sensor 14s detects the distance (La, Lb) between the spray nozzle N ... and the spray object (apple tree Ta, grape shelf Tb), and the wind control plate P ... corresponds to the detected result. An automatic setting unit 14 having a controller 14b capable of automatically setting the displacement amount is configured. If such an automatic setting unit 14 is provided, the optimum air volume corresponding to the state (height state) of the spray object is automatically set, which can contribute to improvement of convenience for the user. In addition, since it is possible to avoid a problem that the chemical liquid is sprayed while an inappropriate air volume is set due to forgetting to set (setting omission) or the like, there is an advantage that fruit trees can be protected by using as a safety device.

  Next, operation | movement of the air volume setting apparatus 1 which concerns on this embodiment, and the chemical | medical solution spray mechanism 37 provided with this air volume setting apparatus 1 is demonstrated with reference to FIGS.

  First, the basic operation of the chemical spray mechanism 37 is as follows. During the spraying of the chemical solution, the chemical solution stored in the chemical solution tank 36 is sent to each of the injection nozzles N by a liquid feed pump (not shown), and the chemical solution is injected from each of the injection nozzles N. On the other hand, the outside air is sucked from the rear end suction port of the wind tunnel 41 by the operation of the blower 42 in the blower unit 2, and this outside air is sent forward through the wind tunnel 41. And while being rectified | straightened by the guide vane 44 at a substantially right angle direction, the chemical | medical solution injected from each injection nozzle N ... by the rectified ventilation is sprayed to the predetermined range of a radial direction.

  On the other hand, with the air volume setting device 1 according to the present embodiment, the air volume Wf in the upward air blowing can be set to an optimum mode according to the type of the spray object. In this case, switching between the automatic mode and the manual mode can be performed by the mode switching unit 55c.

  Assume that the manual mode is selected. In the manual mode, the air volume Wf can be arbitrarily set by the manual operation unit 13. That is, if the operation dial 55s is manually rotated in the operation area of the manual operation unit 13 in the operation dial 55s, the displacement amount of the wind control plate P is arbitrarily set, thereby setting the arbitrary air amount Wf. it can. In the case of illustration, since the scale 56 sets the height from the ground to the spray object, in FIG. 6, when the spray object is a relatively high apple tree Ta, the user has a large scale position on the scale 56. On the other hand, when the spray object is a grape shelf Tb having a relatively low height, the user may set it at a small scale position on the scale 56.

  FIG. 7 shows the function (action) of the wind control plate P ..., the direction of the arrow indicates the blowing direction Fw, and the thickness (width) of the arrow conceptually shows the magnitude of the air volume Wf. FIG. 7 (a) shows a mode in which the wind control plates P are displaced to a position substantially perpendicular to the blowing direction Fw and set at a closed position Xc that blocks the blowing space. In this case, the wind control plate P ... is provided with one or more openings Po ... and / or one or more notches Pc ... that allow passage of air flow, and the position, shape, and size thereof are set. By selecting, the function (action) of the wind control plate P ... for the position and direction of the injection nozzle N ..., the amount of chemical liquid to be injected, etc. is optimized, so the minimum air volume is set stably and accurately, and the optimum spray Is done. On the other hand, FIG.7 (c) has shown the aspect which displaced the wind-control board P ... to the position substantially parallel with respect to the ventilation direction Fw, and set to the open position Xo which fully opens ventilation space. In this case, since the wind control plate P ... does not substantially function, it is possible to spray a chemical solution using a sufficient maximum air volume even for fruit trees having the highest height of the spray object. FIG. 7B shows a state in which the wind control plates P are displaced to an intermediate position. In this case, an intermediate air volume Wf is set.

  Next, it is assumed that the automatic mode is selected. The automatic mode is switched by rotating the operation dial 55s from the minimum position of the scale 56 to the opposite side. In the automatic mode, the height of the spray object is always detected by the distance measuring sensor 14s, and the detection result (height data) is given to the controller 14b. The controller 14b obtains data related to the optimum displacement amount in the wind control plates P ... corresponding to the height data, and the actuator 51 controls the drive so that the wind control plates P ... are displaced to positions corresponding to the displacement amounts. Is done. That is, as shown in FIG. 6, when the apple tree Ta, which is a relatively high fruit tree, is detected by the distance measuring sensor 14s, data related to the distance La to the apple tree Ta is given to the controller 14b. The wind control plates P are set at or close to the open position Xo shown in FIG. 7C, and the maximum airflow or airflow close thereto is automatically set. On the other hand, when a grape shelf Tb, which is a fruit tree having a relatively low height, is detected by the distance measuring sensor 14s, data related to the distance Lb to the grape shelf Tb is given to the controller 14b, and the wind control plate P ... 7 (a) is set at or near the closed position Xc, and the minimum air volume or an air volume close thereto is automatically set.

  Such control may be performed continuously in real time or may be performed discontinuously. In particular, in the case of discontinuous operation, for example, a plurality of data relating to the distances La detected in one minute are averaged, and the displacement amount corresponding to the averaged data is controlled by the wind control plate P in the next one minute. The amount of displacement may be fixed, and this operation may be repeated. Alternatively, the distance La... May be detected in the initial stage, and thereafter, the displacement amount corresponding to the initially detected distance La. By performing this control, it is possible to avoid the problem that the chemical liquid is sprayed while an inappropriate air volume is set due to forgetting to set (setting omission) or the like, and the fruit tree can be protected by using it as a safety device. In addition, the user can also select the optimum automatic mode according to the actual site situation by selecting the standard automatic mode An, the weak automatic mode A1, and the strong automatic mode A2.

  Therefore, according to the air volume setting device 1 according to this embodiment, the air volume passing through the displacement is arranged so as to be displaceable with respect to the upward air flow on the upstream side in the air blowing direction Fw with respect to the injection nozzle N. Since one or two or more wind control plates P that can change Wf, an actuator 3 that displaces these wind control plates P, and drive control means 4 that drives and controls the actuator 3 are provided. Applicability to various spray objects, such as being able to perform accurate chemical spraying based on the optimal air volume Wf on various spray objects (apple tree Ta, grape shelf Tb, etc.) of different thicknesses, Versatility can be improved.

  Although the preferred embodiment has been described in detail above, the present invention is not limited to such an embodiment, and the detailed configuration, shape, material, quantity, technique, and the like do not depart from the gist of the present invention. It can be changed, added, or deleted arbitrarily.

  For example, the wind control plate P ... has shown the case where one end side is rotatably supported by the rotation shafts 11 ..., but excludes the case where the intermediate position is rotatably supported by the rotation shafts 11 .... is not. Moreover, the quantity of the rotating shafts 11 can be arbitrarily set. At this time, two sheets are exemplified as the wind control plates P supported by the respective rotating shafts 11 and are configured not to be obstructed by the guide vanes 44. However, one sheet may be used depending on the arrangement site or the like. It may be more than one. Furthermore, although the manual operation part 13 showed the case where the displacement amount of the wind-control board P ... was changed continuously by manual operation, you may enable it to select and set a some displacement amount with a switch. At this time, if necessary, it may be set according to the type of fruit tree. For example, in the case of illustration, two positions for an apple tree and a grape shelf are provided, and FIG. Any one of the switches may be selected by a switch, for example, FIG. Therefore, the distance measuring sensor 14s used in the automatic setting unit 14 can function as a fruit tree determination sensor for determining the type of fruit tree as described above.

  The air volume setting device according to the present invention can be used for various speed sprayers configured to spray the chemical liquid ejected from a plurality of ejection nozzles in a predetermined range in the radial direction including at least the upper part by air blowing from the air blowing unit. The speed sprayer according to the present invention includes various vehicles for spraying a chemical solution, and includes, for example, a four-wheel truck or a tractor equipped with a chemical solution spraying device on a carrier.

  DESCRIPTION OF SYMBOLS 1: Air volume setting apparatus, 2: Air blower, 3: Actuator, 4: Drive control means, 11 ...: Rotating shaft, 12 ...: Link mechanism, 13: Manual operation part, 14: Automatic setting part, 14s: Ranging Sensor, 14m: Controller, M: Speed sprayer, N ...: Injection nozzle, Wf: Air flow, Fw: Air blowing direction, P ...: Wind control plate, Po ...: Opening, Pc ...: Notch, La: Distance, Lb :distance

Claims (5)

  An air volume setting device for a speed sprayer that sets an air volume when spraying chemical liquids injected from a plurality of injection nozzles in a predetermined radial range including at least the upper part by blowing air from an air blowing unit. One or two or more wind control plates that can change the amount of air passing through the displacement, and an actuator that displaces these wind control plates, while being arranged to be displaceable with respect to the upward air flow on the upstream side in the direction, An air volume setting device for a speed sprayer, comprising drive control means for driving and controlling the actuator.   The air volume setting device for a speed sprayer according to claim 1, wherein the wind control plate is supported at one end side thereof so as to be rotatable by a rotation shaft.   3. The speed sprayer air volume setting device according to claim 2, wherein the rotation shaft is configured to be interlocked with another rotation shaft via a link mechanism.   The air volume of a speed sprayer according to claim 1, 2 or 3, wherein the wind control plate is provided with one or more openings and / or one or more notches that allow passage of air flow. Setting device.   The drive control means detects a distance between the injection nozzle and the injection target by a manual operation unit capable of setting a displacement amount of the wind control plate by manual operation and / or a non-contact type distance measuring sensor, and detects the distance The air quantity setting device for a speed sprayer according to any one of claims 1 to 4, further comprising an automatic setting unit having a controller capable of automatically setting a displacement amount of the wind control plate corresponding to the result.

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