JP5012534B2 - Self-propelled control machine - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a self-propelled control machine that sprays a chemical on a field crop while self-propelled, and belongs to the technical field of agricultural machinery.

Conventionally, as shown in Patent Document 1, in a control device for spraying a chemical, a spray boom for control divided into three in the left and right lateral directions is installed at the front of the machine body, The right and left spraying booms are fixedly supported at a fixed position on the front, and project from the left and right sides of the machine body so that they can be folded and stored around the longitudinal axis. When the chemical solution is sprayed on the crop, the entire boom is expanded so as to be in a horizontal posture, and when the work is finished and moved, the left and right booms are folded inward to travel.
Japanese Patent Laid-Open No. 10-108609

  When the traveling wheels of the fuselage travel on the shore and spray pesticides, spraying is mainly performed by the central spraying boom (center boom) and the left or right spraying boom (side boom) on the left and right sides (the rubbing side). Done. In this case, since the chemical solution is not sprayed on the shore where weeds grow, the generation of pests cannot be suppressed. Moreover, if it is sprayed forcibly on the shore, it will be sprayed on the adjacent fields and fields, so that if the field is not sprayed, the occurrence of phytotoxicity is unavoidable and the problem of residual agricultural chemicals also occurs.

  The present invention eliminates the above-mentioned problems by providing a dedicated straw spreading boom, prevents chemical spraying on adjacent fields while ensuring the safety of adjacent crops while being able to spray chemicals on the shore. Plan.

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 is a self-propelled control machine provided with a spraying boom (9) for spraying a chemical solution to crops in a field while being self-propelled, wherein the spraying boom (9) is placed on the front side in front of the aircraft. The central spraying boom (9C) and the left and right spraying booms (9L) and (9R) positioned on the left and right sides of the central spraying boom are configured, and the central spraying boom (9C) is composed of the left and right spraying booms (9L), ( 9R) is disposed so as to be positioned on the front side of the central spraying boom (9C), and on either one of the left and right sides of the central spraying boom (9C), a kite spraying boom (9K) that can be sprayed along the upper side of the kite width adjacent to the left and right sides of the traveling vehicle body. It is provided.

  When spraying chemicals while traveling along the shore, if you want to spray chemicals on the shore where weeds are growing, use the spray boom (9K) dedicated to the ridge that protrudes outward from the central spray boom. . It can be sprayed on the weeds on the shore by means of the chemical solution that is fed into the dedicated soot spreading boom (9K) and ejected from the spray nozzle (11k).

According to a second aspect of the present invention, in the first aspect, the firewood spraying boom (9K) is configured to be foldable and housed on the center spraying boom (9C) side.
When traveling on the road, if the kite spreading boom is fixed, it will be a hindrance to travel because it protrudes laterally outward from the aircraft, but this kite-specific spreading boom (9K) is folded and stored within the horizontal width of the aircraft. Therefore, it is possible to smoothly travel on the road without being aware of the surroundings.

  According to a third aspect of the present invention, in the first or second aspect, the firewood spreading boom (9K) is rotatable about a vertical axis (O2) and is within a lateral width of the central spraying boom (9C). It is characterized in that it can be folded and stored.

  Since the spear spreading boom is configured to rotate around the vertical axis, it can be folded and stored up to a position overlapping the front side of the central spreading boom within the lateral width.

  In short, according to the first aspect of the present invention, since the spray boom dedicated to the kite is provided on either the left or right side of the central spray boom, the chemical solution is sprayed accurately on the weeds on the bank while traveling along the coast. It is possible to prevent the application of pesticides to adjacent fields and to ensure the safety of adjacent crops.

  According to the second aspect of the present invention, the soot spreading boom can be folded and stored within the lateral width of the front of the machine body, so that the road running can be carried out smoothly without obstruction while achieving the effect of the first aspect. Can do.

  According to the third aspect of the present invention, the soot spreading boom is configured to be rotatable about the axis in the vertical direction and to be folded and housed within the lateral width of the central spreading boom. While exhibiting the effects of the invention described above, it can be folded up to a position overlapping the front side of the central spreader boom, can be stored compactly, and can be stored even in long-term storage in a barn. There is an effect that can be eliminated.

An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 and FIG. 2 show a riding type control machine. An engine E is mounted on the front part of the vehicle body 1, and the rotational power of the engine E is transmitted to a transmission in the mission case 2. The rotational power decelerated by the transmission is transmitted to the front wheels 3 and the rear wheels 4. A tank 5 containing a chemical solution is installed at the rear of the machine body. A driver's seat 6 is provided above the chemical solution tank 5 and a steering handle 7 is provided in front of the tank. The chemical solution in the chemical solution tank 5 is ejected by a pump 8 from a nozzle 11 of a spray hose 10 provided in a spray boom 9 described later. The boom frame 13 that supports the spreading boom 9 is configured to be moved up and down by a lifting link 14.

  Next, the configuration of the spreading boom 9 will be described. The center spreading boom (center boom) 9C has a length substantially matching the lateral width of the fuselage and is supported by the boom frame 13 on both the left and right sides thereof. The left and right spraying booms (side booms) 9L, 9R are configured to be longer than that at the center. The central spraying boom 9C is located in front of the left and right side booms 9L, 9R, and the left and right side booms 9L, 9R can rotate about the vertical axis O1 in the vertical direction (slightly downward tilt in the embodiment). It is configured to be rotated rearward (slightly upwardly inclined in a side view) by the opening / closing cylinder 15 and held in a folded storage state, or protrudes laterally outward and substantially parallel to the ground. It can be rotated and supported in the spraying work posture state.

  On one of the left and right sides of the center boom 9C (see FIG. 2) or on the left and right sides (see FIG. 4), a kite spraying boom 9K that can be sprayed along the upper side of the kite width is provided. This haze spreading boom 9K is rotatable about the vertical axis O2 in the vertical direction, and can be folded and stored within the front lateral width of the center boom 9C. Further, the nozzle 11k of the hail spreading boom 9K is provided at the lower end of the hail boom lance so as to be able to spread from almost right above the weeds, thereby eliminating unevenness of spreading and enabling uniform spreading. In addition, as shown in FIG. 4, in the case where firewood spreading booms are provided at both ends of the center boom 9C, it is not necessary to select the clockwise and counterclockwise operations during the spreading operation, and work adaptability is improved. . Further, in this case, the left and right soot spreading booms 9K, 9K are both configured to be folded and housed around the vertical axis O2, O2.

  Further, as shown in FIG. 5, each nozzle 11k of the kite spray boom 9K is provided with spray-on / off cocks 12, 12,. It is configured as possible. Further, the spray hose 10k to the soot spraying boom 9K is provided with a spraying cock 16K for turning spraying on the entire nozzle of the soot spraying boom.

  Next, a spray control device of a boom sprayer (chemical solution spraying device) having a vehicle speed interlocking spray system of a self-propelled control machine will be described. The control seat 20, the control panel 21 and the control pump switch 19 for turning on / off the control pump 8, and the spray cocks 16L, 16C, 16R, 16K of the booms 9L, 9C, 9R, 9K that can be manually opened and closed 6 sides. The spray cocks 16L, 16C, 16R, and 16K are opened and closed by operating the spray lever.

  As shown in FIG. 6, the display panel 21 including the control controller 20 displays a display unit such as a spray setting 23, a pressure 24, a flow rate 25, and a cumulative flow rate 26 from the upper side on the left side of the display 22 at the upper center. Thus, the data content displayed on the display is indicated by an indicator (triangular mark) that is lit on the left end of the display 22. On the right side of the display 22, a display switching button 28 as a display switching means is provided. Below these, an automatic mode button switch 29 is provided, and this ON is indicated by a pilot lamp 30. Further, a spray setting button switch 31, increase / decrease button switches 32 and 33, a cumulative reset switch 34, and the like are arranged.

  Further, as shown in FIG. 7, the chemical suction and discharge path of the spraying control device is a spraying boom 9L, 9C through the low pressure water absorption path 36 between the chemical tank 5 and the control pump 8 and the flow control valve 37 from the pump 8. , 9R, 9K, and a high pressure water discharge path 38, which is connected by each of the spraying hoses 10L, 10K (L), 10C, 10K (R), 10R and the like. The high-pressure water discharge path 38 is provided with a residual water return path 40 having a pressure control valve 39 for controlling the discharge amount of the pump 8 so that it can be returned to the tank 5. In addition, a stirring path 41 is communicated with the bottom of the tank 5, and a part of the chemical solution is constantly ejected and reduced into the tank to stir the chemical solution in the tank 5. In the high-pressure water discharge path 38 between the flow control valve 37 and the spray cocks 16L, 16C, 16R, and 16K to the booms 9L, 9C, 9R, and 9K, a pressure sensor 42 that detects the fluid pressure and a flow rate are detected. A flow sensor 43 is provided. Reference numeral 44 denotes an air chamber.

Further, a suction filter 45 is provided in the low-pressure water absorption path 36 between the chemical tank 5 and the pump 8.
Then, the control controller 20 is turned on by pressing a control pump switch 19 that drives the control pump 8, and the spray cocks 16L, 16C, 16R, and 16K are opened by opening and closing the spray lever, a traveling clutch is inserted, and the airframe is installed. An automatic spraying control means is provided in the form of a control program so that the microcomputer control operation is automatically started when it is moved forward. That is, the flow rate of the high-pressure water discharge path 38 is constantly detected by the flow rate sensor 43, and the signal from the flow rate sensor 43 is transmitted to the controller 20 together with the signal from the vehicle speed sensor 46 that detects the traveling speed. Therefore, in the controller 20, the target spraying amount per unit area is input based on signals from the vehicle speed sensor 46 and the flow rate sensor 43 under the input of the predetermined discharge amount of each spraying nozzle and the target spraying amount per unit area. The liquid flow rate in the high-pressure water discharge path 38 necessary for realizing the above is calculated, and the discharge amount of the pump 8 is controlled so that the calculation result is realized.

  In short, since the microcomputer speed-linked microcomputer control is possible so that the individual spraying boom 9K can also perform the individual spraying work, spraying can be performed with the spraying amount according to the spraying setting, and spraying uniformly regardless of the vehicle speed. be able to. In addition, by newly setting the soot spraying mode, a dedicated nozzle constant can be set in the microcomputer and the microcomputer can be controlled, so that even in soot spraying, uniform spraying is possible regardless of the vehicle speed.

  FIG. 8 shows another embodiment of the folding storage structure of the cocoon spreading boom. In the cocoon spreading boom 9K provided at the end of the center boom 9C with the longitudinal axis O2 as a fulcrum, it is spread. In order to assist the pivoting operation of the boom, when the soot spreading boom is rotated more than a certain amount, this soot spreading boom is automatically stored to the predetermined folding position by exceeding the fulcrum (O2) of the auxiliary spring 48. Yes. According to this, it is possible to easily switch between the folding storage position and the spraying work posture position without using a tool, and it is possible to prevent the sprinkling boom from fluttering by the tension of the auxiliary spring. Further, as shown in FIG. 8, on the center boom 9C side, an elastic stopper 49a made of a vibration-proof material received at the folding storage position of the kite spraying boom 9K, and an elasticity received when the kite spreading boom is deployed to the spraying work posture. A stopper 49b is provided to relieve the impact during storage and deployment.

  The embodiment shown in FIG. 9 is configured to fold and store the soot spreading boom in connection with the folding and storing operation of the side boom. That is, on the side boom 9L side, the operation cams 51a and 51b are provided on the boom opening / closing arm 50 that rotates about the vertical axis O1 by the expansion / contraction operation of the opening / closing cylinder 15, while the operation cam 51a, 51b is provided on the side of the soot spreading boom 9K. The cams 51a and 51b are provided with driven cams 52a and 52b for folding and spreading the firewood spreading boom around the vertical axis O2 in the retracting direction, and the side boom 9L is moved backward in accordance with the pulling operation of the opening / closing cylinder 15 in the reduction direction. When folded and stored, the operating cams 51a and 51b and the driven cams 52a and 52b rotate while being engaged with each other, so that the soot spreading boom is automatically folded and stored. At this time, until the auxiliary spring 48 exceeds the fulcrum, the operation cams 51a and 51b and the driven cams 52a and 52b are rotated, and thereafter, the auxiliary spring 48 is rotated to the predetermined folding storage position by the tension of the auxiliary spring 48. Move.

  The embodiment shown in FIG. 10 includes a plurality of flow rate control devices, that is, high-pressure discharge paths, in a spraying control apparatus that has a pressure-control valve 39 in the high-pressure discharge path 38 and is capable of controlling the base pressure (pressure adjustment). A farm field (standard) spraying system S1 composed of a center boom 9C and left and right side booms 9L and 9R piped through 38, and a soot spraying system S2 composed of a soot spraying boom 9K piped through a branch path 54 branched from a high-pressure discharge path. The basic pressure control is adapted to the spray control of a plurality of systems provided. In short, in the entire surface spraying operation using a plurality of spraying devices, when the microcomputer spraying setting is set such that the piping pressure Q1 of the system S1 = the piping pressure Q2 of the system S2, only a constant ratio (for example, 10% increase of Q1) is always a high pressure discharge path The basic pressure value Q is controlled so that the basic pressure Q> Q1. In the plurality of spraying systems, there is no base pressure (pressure regulation) control that is suitable for both, and there is a disadvantage that the base pressure is constant and horsepower is consumed more than necessary, resulting in increased fuel consumption. In addition, there is a system having pressure regulation control in one system spraying, but there is a problem that low pressure spraying cannot be performed because spray pressure control is performed alone. Therefore, in the case of the present example, the conventional problems can be solved, and labor-saving spraying control can be realized even in spraying control of a plurality of systems.

  In the spray control with the above configuration, when the microcomputer spray setting is Q1> Q2, the base pressure (pressure regulation) is controlled so that the base pressure Q> Q1. Note that Q is a predetermined percentage increase of Q1. According to this, since the base pressure is not too high, it is possible to perform labor-saving spraying work without consuming horsepower more than necessary.

  Furthermore, in the above-described spraying control, with the microcomputer spraying setting of Q1 <Q2, the power-saving spraying can be realized by controlling the base pressure (pressure regulation) so that the base pressure Q> Q2 during the spraying operation. Can do.

  In the flow control having a plurality of spraying systems S1 and S2, when the standard spraying cock of the spraying system S1 is at the spraying cut-off position, the flow control of the spraying system S2 is preferentially controlled. The spray setting of the system S1 is temporarily invalidated so that the valve control drive motor 55 does not operate. In addition, the detection limit switch 56 is arranged in the cock portion 16 for the detection of spraying.

  When spraying of the spray system S1, the signal output to the drive motor for opening and closing the valve is temporarily cut, so that the wear of the needles that make up the valve can be prevented and the performance life of the control unit can be extended. Can be maintained.

  Further, at the position of the spray cock cutting position of the spray system S2, the signal output to the flow control valve 37b of the system S2 is temporarily cut to be in the control stop state, and the flow control of the system S1 is preferentially performed. . In the case of adopting such a spraying method, by not operating the control valve of the system S2, it is possible to suppress wear of the valve portion and to maintain a long life.

  In the above-described multiple-system spraying control, when the spraying cock is again in the spraying “open” position, the flow rate control can be started immediately. For example, a signal is input when the detection switch 56 provided in the cock is turned off, and the control is started immediately.

  As shown in FIG. 10, in the spray control device that controls the flow rate by providing flow sensors 43a and 43b in the spray systems S1 and S2, respectively, the detected value of the flow sensor 43a of the spray system S1 is less than a prescribed value, The flow rate control is stopped, and the flow rate control is continuously performed with priority given to the flow rate control of the system S2. In the high-performance type spraying device, the spraying flow rate and the cumulative flow rate are measured from the output value of the flow rate sensor and displayed on the panel. Therefore, by setting this flow rate as a control value (determination value), there is an effect that the degree of valve consumption can be reduced without performing unnecessary control. In addition, there is no need for additional setting of dedicated electrical components for detection, and there is a great cost advantage.

  In addition, when the flow rate sensor value of the spraying system S2 is equal to or less than the specified value, the control of the system S2 may be temporarily stopped, and the control of the one spraying system S1 may be continuously performed to perform the spraying control. In this, there is an advantage that the degree of wear of the flow rate control valve of the spray system S2 can be reduced.

  Furthermore, in the spray control for controlling the flow rate by providing the flow sensors 43a and 43b in each of the plurality of spray systems, the side where the flow rate control value is stopped when the detected flow rate is less than the specified value is the spray cock "open", and the flow rate is detected. After that, by configuring to start the flow rate control immediately, the control starts in real time and does not feel stress.

Side view of self-propelled control machine Plan view of main parts of self-propelled control machine Front view of the main parts of the control machine Plan view of the main parts of the control machine Front view of the main parts of the control machine Top view of the main part of the controller box Spreading control system diagram of spreading boom 平面 Top view showing the folding storage operation state of the spreading boom The top view which shows the folding relation action state of a saddle boom and a side boom Scatter boom control system diagram Expanded system diagram of the main part Perspective view of the main part of the spraying device

Explanation of symbols

9 Spreading boom
9C Center boom 9L Left side boom 9R Right side boom 9K
O1 Vertical axis of side boom
O2 vertical axis of spray boom

Claims (3)

In a self-propelled control machine equipped with a spraying boom (9) for spraying chemicals to crops in a field while self-propelled, the spraying boom (9) is located at the front of the aircraft in front of the central spraying boom (9C) and the center The left and right spraying booms (9L) and (9R) are located on the left and right sides of the spraying boom, and the central spraying boom (9C) is arranged to be positioned in front of the left and right spraying booms (9L) and (9R). A self-propelled type characterized in that, on either one of the left and right sides of the central spraying boom (9C), a kite spraying boom (9K) that can be sprayed along the upper side of the kite width adjacent to the left and right sides of the traveling vehicle body is provided. Control machine. The self-propelled pest control machine according to claim 1, wherein the cocoon spreading boom (9K) is configured to be foldable and housed on the center spreading boom (9C) side. The said cocoon spreading boom (9K) is configured to be rotatable about a vertical axis (O2) and to be folded and housed within the lateral width of the central spreading boom (9C). 2. The self-propelled control machine according to 2.

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