JP2019017310A - Self-travel type pest control machine - Google Patents

Abstract

To provide a self-travel type pest control machine which can secure a capacity of a fuel tank and secure oil feeding working property.SOLUTION: A self-travel type pest control machine comprises: a steering part 20 for traveling and operating a liquid medicine spraying; a mover part E and a medicine tank 30 each of which is arranged on each of front and rear sides of the steering part; a main frame 3 for supporting these mover part, steering part and the medicine tank; and a pest control boom 40 which can switch a storage position and a development position where a liquid is sprayed on a front part of a machine body, the storage position and development position are on both sides of the steering part. The self-travel type pest control machine further comprises a fuel tank 8 on a lower part of the main frame, and the fuel tank is supported in a movable state to an outside, for securing capacity of the fuel tank, and securing oil feeding working property.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a self-propelled control machine that includes a chemical tank and a control boom and controls and runs in a field.

  The work vehicle described in the prior patent document has a driving part and a chemical tank placed before and after the cockpit, and is supported on the main frame so that it can run on the field. A self-propelled control work vehicle that is equipped with a control boom that can be switched between the deployment position where the chemical solution is sprayed at the part is known, and further, by arranging a large capacity fuel tank at the bottom of the traveling frame, A wide range of field control work can be efficiently carried out.

JP-A-2015-3696

  However, since the fuel tank is close to the traveling frame directly above, a sufficient operation space cannot be secured around the fuel filler port, so that the fuel hose cannot be stably held and It was a difficult point.

  An object of the present invention is to provide a self-propelled pest control machine that can ensure the capacity of a fuel tank and ensure the refueling workability.

  The invention according to claim 1 includes a control unit (20) for operating traveling and chemical spraying, a driving unit (E) and a chemical tank (30) arranged before and after the control unit (20), and these driving units. The main frame (3) for supporting the part (E), the control part (20), the medicine tank, and the storage position on both sides of the control part (20) and the deployment position for spraying the chemical solution at the front part of the machine body can be switched. In a self-propelled control machine equipped with a control boom (40), a fuel tank (8) is provided below the main frame (3), and the fuel tank (8) is supported so as to be movable outward. Features.

  The invention according to claim 2 is the invention according to claim 1, wherein the fuel tank (8) is supported so as to be slidable outwardly by an attachment hole (3b) formed by a long hole, and the attachment hole (3b) A recess-shaped positioning portion (3c) is provided at the outer end position of the slide movement.

  The invention according to claim 1 secures an operation space around the fuel filler opening at a position outside the main frame (3) by moving the fuel tank (8) outward from the lower part of the main frame (3). Therefore, it is possible to ensure the fuel supply workability and facilitate maintenance while ensuring the maximum capacity of the fuel tank (8).

  In addition to the effect of the invention according to claim 1, the invention according to claim 2 is capable of sliding the fuel tank (8) outward by means of a mounting hole (3b) with a long hole, and positioning the recess shape. Since the fuel tank (8) is positioned at the outer end position by the portion (3c), it is possible to perform a stable refueling operation only by sliding the fuel tank (8) to the outer end.

Side view of cabin type control machine (boom not shown) Main part plan view around main frame (a) and main part side view (b) Top view (a) and side view (b) of fuel tank Exploded view of fuel tank support Configuration example of long holes in support frame (af) Boom development view (a), mast part enlarged view (b), caster part enlarged view (c) Boom sensor layout example Exploded view of boom fulcrum (a), enlarged view of fulcrum (b) Aircraft side view Front perspective view of the aircraft Aircraft rear perspective view Aircraft plan view Control traveling plan

  Embodiments specifically configured based on the above technical idea will be described below with reference to the drawings.

  As shown in FIG. 1, a side view of a configuration example (boom not shown) of the cabin type control machine is provided with a driving part E and a chemical tank 30 before and after the control part 20. The main frame 3 is suspended and supported by the front and rear wheels 6 and 7 so as to be able to run on the field, and a control boom 40 (not shown) is configured to be openable and closable on the boom base B at the front of the machine body. A fuel tank 8 is provided.

  As shown in FIG. 2, a plan view (a) of a main part around a main frame and a side view (b) of the main part of the fuel tank 8 are arranged so that support frames 3a, 3a arranged in front and rear are parallel to each other on one side of the main frame 3. The fuel tank 8 is supported through the support fittings 9 and 9 so as to be movable outward.

  Specifically, as shown in FIG. 3 in which the plan view (a) and the side view (b) of the fuel tank 8 are shown in FIG. 3, the L-shaped support fittings 9 are respectively attached to both end portions 8b and 8b. 9 is fixed to the mounting hole 3b of the support frame 3a with bolts 9a, 9a or fixed with a wing nut.

  As shown in the exploded view of the fuel tank support portion in FIG. 4, each of the attachment holes 3 b is configured so that the fuel tank 8 can be moved outward by a support hole adjusting long hole. Ensures a movable distance L that can be exposed from under the floor of the control unit 20.

  Further, a concave positioning part 3c (see FIG. 5) is formed in the mounting hole 3b, and the bolt 9a enters the positioning part 3c when the fuel tank 8 is moved to the outer end. The position where the bolt 9a enters the positioning portion 3c is the oil supply position. Thereby, the fuel tank 8 is stabilized at the time of refueling.

  In this way, an operating space is secured around the fuel filler opening 8a by the outward movement of the fuel tank 8 while ensuring the maximum tank capacity in the range of the lower surface of the main frame 3, and therefore in the fueling and maintenance. Workability can be ensured.

  Further, the mounting holes 3b of the support frames 3a and 3a can apply the long hole shape of FIGS. 5A to 5F. In particular, the divided long holes of FIG. 5B, d, and f have a moving distance L. By applying to a relatively short case, the support rigidity can be ensured. In the example of FIGS. 5C to 5F, the fuel tank 8 is lowered and positioned by the positioning portion 3c at the outer end position, and the operation space is expanded and the low position work is performed. Thus, the refueling operation becomes easier, and in the example of FIG. 5 (e, f), the operation space is expanded by lowering the outer end of the fuel tank 8, and the return operation after refueling is facilitated. .

  In addition to the above-described configuration, by providing the support frames 3a and 3a so that the moving direction can be moved outwardly forward or outwardly, workability can be ensured by avoiding equipment on the outer side of the machine body such as steps.

(Control boom)
Next, the control boom will be described.
The control boom 40 is configured to be able to detect the unfolded state, and by controlling the vehicle behavior at the time of unfolding detection, it is possible to suppress risks such as deformation of the boom and functional failure due to over-running in the unfolded state and high-speed traveling. .

  Further, as shown in the boom development view of FIG. 6A, by adding the reinforcement mast 42 to the boom link, the boom can be prevented from being broken, and the maintainability can be improved and the work traveling speed can be increased. It becomes.

  In this case, the mast 42 can be increased in strength without interfering with the movement of the cylinder by being attached to the gap between the opening and closing cylinders at both ends of the tip boom link frame.

  In addition, as shown in FIG. 6 (b), an enlarged view of the mast support portion is a U-shaped plate with the mast shape opened to the front side, so that the strength can be increased and the weight can be reduced. By fixing with bolts and nuts so as to be sandwiched from above and below the mounting frame, the position can be adjusted by sliding.

  The mast 42 and the boom 40b are connected by a wire 43 and a pipe 44, the mast side is a wire 43, the boom side is a pipe 44, and the pipe 44 attached to the boom side also serves as a caster, so that the boom can be attached and detached by one person. Is possible.

  Specifically, as shown in FIG. 6 (c), an enlarged view of the caster part is attached to the end of the pipe 44 with a caster 44a, fixed with a bolt and nut, and fastened together with the wire 43 on the opposite side. The boom can be opened and closed without the casters getting in the way by being attached to the outside of the boom 40b and facing the front side of the boom link.

By making the caster 44a move only in one direction, it is possible to prevent instability due to rotation during attachment / detachment.
Moreover, the pipe 44 can respond | correspond to opening / closing and raising / lowering of the boom 40b by attaching so that it may rotate to the side surface of the boom 40b.

By making the tip of the wire 43 into a loop shape with caulking, the caulking is loosened and the length of the wire can be adjusted.
Further, by providing a hook 42a on the mast 42 side and connecting the mast 42 and the wire 43 with a shackle, it becomes possible to attach and detach without a tool.

  A spring-type stopper pin is attached to the pipe 44, and is fixed to the boom 40b so that the pipe 44 does not rotate when the caster is deployed. At this time, the caster can be developed without any trouble by fixing the removed wire 43 to the pin.

  Further, the left and right masts 42, 42 can be connected to each other with a bar to increase the strength, and by marking the boom link, the boom height can be adjusted using the bar as a guide.

(Height sensor)
Next, as shown in FIG. 7, ultrasonic sensors 45 are arranged at two or more locations on the boom lance 40b for the control machine to detect the height of the field scene, and the boom is adjusted so that the detected values are the same. By automatically controlling, a constant angle or a constant distance with respect to the ground can always be maintained.

  Further, as shown in the exploded view of the fulcrum part of FIG. 8A, one of the upper and lower fulcrums 46a and 46b of the connecting part of the boom lance 40b is welded to the welding pin as shown in the enlarged view of FIG. 8B. By using a hook-type hook 42b, the boom lance 40b can be removed by one person.

(overall structure)
Next, an example of the overall configuration of the passenger control machine will be specifically described.
As shown in FIGS. 9 to 11, the medicine spraying vehicle 1 includes a traveling vehicle body 2, a cabin 20, a medicine tank 30, a control boom 40 for spraying medicine supplied from the medicine tank 30 to a field, and the like. Has been.

  The traveling vehicle body 2 includes a main frame 3, a driver seat 4, a steering handle 5, front wheels 6, and rear wheels 7. The main frame 3 is formed to extend before and after the traveling vehicle body 2. The driver's seat 4 is a seat for an operator to sit when operating the medicine spraying vehicle 1. At an appropriate position around the driver's seat 4, an operation unit 90 for controlling operations such as opening / closing of the control boom 40 and spraying of the medicine is disposed.

  The steering handle 5 erected in front of the driver seat 4 changes the traveling direction of the medicine spraying vehicle 1 by steering at least the left and right front wheels 6 and 6 by a turning operation by an operator. That is, the front wheels 6 and 6 are steered wheels that are steered by at least a turning operation of the steering handle 5.

  The front wheels 6 and the rear wheels 7 are appropriately shifted in the transmission case (not shown) by the engine power in the bonnet BN, and the shifted power is transmitted to rotate.

  The cabin 20 forms a passenger compartment by surrounding the driver's seat 4 and peripheral devices, a steering handle, and the like. The cabin 20 is disposed between the medicine tank 30 and the control boom 40. The cabin 20 includes a cabin frame 21 (first front frame 21a, fourth frame 21b, upper frame 21c, etc.), a cabin roof 22, left and right open / close doors 25L, 25R, and the like.

  The cabin frame 21 is disposed on both the left and right sides of the front portion of the cabin 20 in the vehicle width direction, and the left and right first front frames 21a and 21a standing on the main frame 3, and the left and right first front frames 21a and 21a. Left and right second frames 21d, 21d and left and right second frames 21d, 21d, and left and right third frames 21e, 21e. Furthermore, left and right fourth frames 21b and 21b that are not erected on the main frame 3 are formed behind the left and right third frames 21e and 21e, and the left and right first front frames 21a and 21a It consists of two frames 21d and 21d, left and right third frames 21e and 21e, and an upper frame 21c that connects the upper portions of the left and right fourth frames 21b and 21b.

  The lower left and right fourth frames 21b and 21b and the middle of the left and right third frames 21e and 21e are connected by left and right fifth frames 21f and 21f. An intermediate portion of the left and right first front frames 21a, 21a is connected by a front connection frame 21g. Slightly above the lower ends of the left and right fourth frames 21b, 21b are connected by a rear connecting frame 21h.

  A front glass GF is attached between the front connection frame 21g and the upper frame 21c, and a lower front glass GFu is attached below the front connection frame 21g. A rear glass 57 is provided between the rear connecting frame 21h and the upper frame 21c, and the rear glass 57 is configured to be openable and closable outward with the upper side as a fulcrum.

  In addition, a left first glass LG1 is attached between the left first front frame 21a and the left second frame 21d, and between the left third frame 21e and the left fourth frame 21b, The left second glass LG2 is attached, and the right first glass RG1 is attached between the right first front frame 21a and the right second frame 21d, and the right third frame 21e and the right second frame 21d are attached. A condenser 48 (see FIG. 10) for cooling and liquefying the air-conditioning refrigerant is attached between the four frames 21b, and the right second glass RG2 is attached to the lower side of the condenser 48.

  In addition, it is preferable to provide a water injection nozzle and a wiper on the lower left and right sides or one side of the front glass GF so that the front surface can be wiped off appropriately. It is preferable that the injection nozzles and wipers provided on the left and right can be used simultaneously or alternately, or only the necessary side can be used.

  The medicine tank 30 is installed close to the left and right fourth frames 21b and 21b and below the left and right fifth frames 21f and 21f and further to the rear of the left and right third frames 21e and 21e.

  As shown in FIG. 10, left and right work lights WR1 and WR2 are provided at the front upper portion of the cabin 20. Further, left and right headlamps BFL and BFR are provided at the front portion of the bonnet BN. The left and right work lights WR1 and WR2 are configured to be interlocked with the left and right headlamps BFL and BFR. That is, the left and right headlamps BFL and BFR are turned off when the left and right work lights WR1 and WR2 are turned on. Thereby, since it does not light simultaneously, charging / discharging performance can be ensured and the battery can be prevented from running out.

  The drug tank 30 is a container that stores a drug solution sprayed from the boom 40. As shown in FIG. 9, the medicine tank 30 is disposed on the rear side of the cabin 20. As shown in FIG. 12 in plan view, the medicine tank 30 is formed in a U shape so as to surround both the left and right sides and the rear side of the driver seat 4 and is detachably mounted on the main frame 3. The drug solution is a liquid substance such as a liquid obtained by dissolving fertilizers, agricultural chemicals or the like in a solvent (for example, water), and a liquid (for example, water) containing solids such as fertilizers or agricultural chemicals.

  As shown in FIG. 13, the control boom 40 spreads the medicine widely on the left and right of the front side of the medicine spreading vehicle 1. The boom 40 is provided on the front side of the traveling vehicle body 2. The boom 40 includes a center boom 40a and side booms 40b and 40b on both sides.

  The center boom 40 a is disposed on the front side of the medicine spraying vehicle 1 and extends horizontally in the vehicle width direction of the traveling vehicle body 2. The center boom 40a is provided with a plurality of nozzles 41a for injecting medicine in a mist form at intervals.

  The side boom 40b is attached to the left and right sides of the center boom 40a so as to be switchable between a spraying posture extending in the vehicle width direction of the traveling vehicle body 2 and a storage posture along the left and right sides of the traveling vehicle body 2. Further, the side boom 40b is supported by boom receivers 80 (FIG. 9) disposed on the left and right sides on the rear side of the traveling vehicle body 2 in the storage posture. In the side boom 40b, a plurality of nozzles 41b for spraying the medicine in a mist form are arranged at intervals.

(Technical points)
It is as follows when the technical point of the above-mentioned medicine spraying vehicle is put together.
First, by supporting the fuel tank 8 movably outward from the lower part of the main frame 3 that suspends and supports the driving unit E, the control unit 20, the drug tank 30 and the like, the outer side of the main frame 3 is supported. Since the operation space can be secured around the fuel filler opening 8a at the position, the capacity of the fuel tank 8 can be ensured to the maximum, and the lubrication workability and the maintenance can be facilitated.

  Secondly, the fuel tank 8 is supported so as to be slidable outwardly by the mounting hole 3b formed of a long hole, and a concave-shaped positioning portion 3c is provided at the outer end position of the sliding movement of the mounting hole 3b. The fuel tank 8 can be slid outward by 3b, and the fuel tank 8 is positioned at the outer end position by the concave-shaped positioning portion 3c. Therefore, the fuel tank 8 is only slid outward. This enables stable refueling work.

DESCRIPTION OF SYMBOLS 1 Self-propelled control machine 3 Main frame 3b Mounting hole 3c Positioning part 8 Fuel tank 20 Control part 30 Chemical tank 40 Control boom E Prime part

Claims (2)

A control unit (20) for operating traveling and spraying chemicals;
A driving part (E) and a medicine tank (30) arranged before and after the control part (20);
A main frame (3) that supports the driving unit (E), the control unit (20), and the medicine tank (30);
In a self-propelled control machine comprising a control boom (40) capable of switching between a storage position on both sides of the control unit (20) and a deployment position for spraying a chemical at the front of the machine body,
A fuel tank (8) is provided below the main frame (3), and
A self-propelled control machine characterized in that the fuel tank (8) is supported so as to be movable outward. The fuel tank (8) is supported so as to be slidable outwardly by a mounting hole (3b) having a long hole, and a recessed positioning portion (3c) is provided at the outer end position of the sliding movement of the mounting hole (3b). The self-propelled pest control machine according to claim 1, further comprising: