JP6384051B2 - Self-propelled granular material spreader - Google Patents

Description

  The present invention relates to a self-propelled granular material spreader that sprays granular particles of chemicals such as granular fertilizers and herbicides stored in a tank to a farm field while traveling.

  A self-propelled granular material spreader equipped with a granular material spraying device that sprays the granular material of the chemicals such as granular fertilizer and herbicide stored in the tank with a feeding device while spraying the granular material to the field by a jet tube. As a (passenger management machine), there is a configuration described in Patent Document 1 below. In this configuration, the front and rear wheels are supported through an extended case that extends downward from the front and rear axle cases, and a tank that stores the particulate matter to be spread on the farm field on the riding type traveling machine body provided with a seat; In a granular material spraying device provided with a feeding device having a feeding roll for feeding the granular material in the tank, and jet tubes (spraying booms) provided on the left and right sides of the airframe for spraying the granular material, on the opposite side of the axle case It is characterized in that a collision plate for guiding the granular material is provided at the jet outlet of the jet tube.

JP 2011-50261 A

  According to the configuration described in Patent Document 1, since the particulate matter hits the collision plate and is guided to the opposite side of the axle case, the particulate case is prevented from being discharged to the axle case side so that the axle case is rusted by the particulate matter. Can be prevented.

  On the other hand, when spraying granular material such as fertilizer on the field, it is difficult to determine how far the granular material has been scattered because it is often performed by one worker. If the accurate spraying area cannot be grasped, it will be difficult to perform proper work such as running the machine with the proper strip in the next spraying process, and the spraying areas may overlap or non-spraying areas may occur. Will occur. Therefore, a work assistant may be required.

  Therefore, the problem of the present invention is to provide a self-propelled granular material spreader that can grasp the distribution area of granular material and determine how far the granular material has scattered in the distribution work of granular material such as fertilizer. is there.

The above-described problems of the present invention are solved by the following solution means.
The invention according to claim 1 is stored in the traveling device (4, 5), the storage unit (10) provided on the traveling device (4, 5) and storing particulate matter, and the storage unit (10). A granular material spraying device (1) provided with a spraying boom (14) for spraying the granular material on the field, and foam that is provided in the vicinity of the granular material spraying device (1) and serves as a mark of the spraying area A bubble dropping device (53) for dropping into the bubble, and the bubble dropping device (53) is a bubble dropping port (62) and a pipe (60) for conveying bubbles along the longitudinal direction of the spray boom (14). The pipe (60) is integrated with the spreading boom (14) by the support member (70), and the dripping port (62) is the left and right ends of the pipe (60) and the spreading boom (14). A conical bellows-shaped cup having a conical shape that is widened toward the end is provided on the outer side of the right and left spouts (50). And so oriented, spout of the right and left ends of the spray boom (14) (50), and configured to spray particulates toward the left outer side, from the extension of the tip spraying boom pipe (60) (14) The self-propelled granular material spreader is characterized in that the dripping port (62) is offset from the spray boom (14) by bending backward .

According to a second aspect of the invention, spraying boom (14) is connected to the body side of the wire (72), the wire (72) together are wound around the pulley (78), the wire (72 in elevating the handle (75) The self-propelled granular material spreader according to claim 1, which is configured to be extendable and contractible.

  According to invention of Claim 1, even if it is a case where it is a case where it is working alone by dripping the foam used as a mark of a spraying area to a field by a foam dropping device (53), a granular material is sprinkled anywhere. Since it is easy to see and judge how far it has been or how far it has scattered, there is no need for an assistant. And by grasping | ascertaining an exact spraying area | region, in the spraying operation | work at the next process, a work can be performed with an appropriate strip, and the problem that a spraying area overlaps or a non-spreading area generate | occur | produces does not arise.

Moreover, according to invention of Claim 1, in addition to the effect of the invention of Claim 1, the bubble dropping device (53) is a pipe (10) for conveying bubbles along the longitudinal direction of the spray boom (14). 60), the structure is compact. In addition, since the pipe (60) extends straight along the spray boom (14), it is easy for the foam to pass through, and it can be sent to the foam dripping port (62). Therefore, the time for the bubbles to come out can be shortened.

In addition, according to the first aspect of the present invention, since the dripping port (62) is a bellows-shaped cup, the bubbles are easily accumulated and difficult to disappear. Therefore, it is possible to reliably grasp an accurate spray area. In particular, if a conical bellows cup having a wide end is used, bubbles are more likely to accumulate and large bubbles are more likely to be formed, so that the bubbles do not disappear in a short time. Therefore, it is possible to carry out the work slowly and carefully without panicking when the aircraft turns on the headland.
Furthermore, according to the first aspect of the present invention, since the dropping port (62) is located behind the jet port (50), the particulate matter may hit the dropping port (62) at the tip of the pipe (60). And the spraying accuracy is not reduced. In addition, even when the pipe (60) is provided behind the spray boom (14), it is possible to reliably prevent a reduction in spraying accuracy by bending the tip of the pipe (60) backward.
According to the invention described in claim 2 , in addition to the effect of the invention described in claim 1 , the operator can operate the wire (72) in the extending direction and the contracting direction by turning the lifting handle (75). The spray boom (14) can be easily lifted and lowered by manual operation of the lift handle (75), and the pipe (60) is lifted and lowered in the same manner as the spray boom (14) is lifted. During the spraying operation, if you want to drop the foam quickly without matching the timing of the foam, turn the lifting handle (75) to temporarily move the pipe (60) up and down to give vibration to the pipe (60). , Can make it difficult to foam. Accordingly, it is possible to drop the bubbles systematically.

It is a side view of the granular material spreader by one Embodiment of this invention. It is a top view of the granular material spreader of FIG. It is a rear view of the granular material spreader of FIG. It is a control block diagram of the granular material spreader of FIG. It is an expansion rear view of a spreading boom part. It is a top view of the dripping port vicinity of a bubble dripping apparatus.

Embodiments of the present invention will be described below with reference to the drawings.
In FIG. 1, the side view of the powdery material spreader of embodiment of this invention is shown, FIG. 2 shows the top view of the powdery material spreader of FIG. 1, and FIG. 3 shows a rear view. FIG. 4 shows a control block diagram of the granular material spreader of FIG. In this specification, the left and right directions in the forward direction of the granular material spreader are referred to as left and right, respectively.

  First, as shown in FIG. 1 and FIG. 2, the granular material spraying device 1 (hereinafter referred to as a fertilizer spraying device because it will be described as an example of fertilizer as a granular material) is attached to the rear part of the granular material sprayer 2. The The engine 3 is mounted on the front, and the engine rotation is appropriately changed and transmitted to the front wheels 4 and the rear wheels 5 which are travel devices. A pair of left and right tanks (reservoirs) 10 and 10 for storing fertilizer to be spread on the field are attached to the rear of the granular material spreader 2.

  The fertilizer spreading device 1 includes a fertilizer tank 10, a feeding device 11, a blower 12, a jet tube 13, a spreading boom 14, and the like. However, FIG. 1 shows only a part of the spray boom 14 and a pipe 60 described later.

  At the lower part of the fertilizer tank 10, a feeding device 11 for feeding a predetermined amount of sprayed granule from the fertilizer tank 10 is provided. The feeding device 11 has a known configuration in which a plurality of rolls (not shown) are configured on a roll drive shaft (not shown). The roll drive shaft is driven and rotated by a roll drive motor 25 (FIG. 4).

  Under the pair of feeding devices 11, 11, through-cylinders 30, 30 whose rear sides extend obliquely inward with respect to the airframe traveling direction are faced, and the continuous portion of the through-cylinders 30, 30 is a blower device. 12 is communicated with the blower cylinder 31 having 12. The other downstream end of each through-cylinder 30, 30, that is, the front side of the fuselage communicates with the jet tube 13, and the spreading boom 14 is behind the blower fan 12 a and bends backward from the jet tube 13 in front of the blower fan 12 a. It is a configuration that is detoured and conveyed. In FIG. 1, the detour portion is shown by a dotted line for easy viewing.

  The blower 12 is configured by a blower fan 12a that is linked to the PTO shaft 32 of the granular material spreader 2 via an electromagnetic clutch 12b, and the blast air enters the through-cylinder 30 via the blower cylinder 31 and feeds fertilizer. It is configured so as to be transported in an air stream and reach the left and right jet tubes 13 and 13.

  The left and right jet tubes 13, 13 are arranged in the space between the fertilizer tank 10 and the passenger seat 33 provided on the upper part of the granular material spreader 2, and the cylindrical axis is in the direction of the body in plan view. The left and right spray booms 14, 14 are connected to the left and right injection tubes 13, 13 via a bellows tube 16 (FIG. 5) so as to be inclined outwardly. Connect to.

  Further, an electric telescopic cylinder 45 (FIG. 4) is interposed between the base of the spreading boom 14 and the body frame 6, and the open / close switch 40 provided in the vicinity of the seat 33 is turned on to shorten the telescopic cylinder 45. In this configuration, the spreading boom 14 is expanded sideways so as to be in a working posture by extension (the state shown in FIGS. 2 and 3), and the spreading boom 14 is stored in a state along the body. That is, the spreading boom 14 opens in the direction of arrow A (left and right direction) with the base at the center during spreading work, and closes in the direction opposite to the direction of arrow A during storage and is stored on the side surface of the aircraft. When the spreading boom 14 is stored, the lateral width of the fuselage and the width between the left and right spreading booms 14 and 14 are substantially the same, so that the structure becomes compact and does not interfere with the entrance and exit of the barn.

And the spray boom 14 is formed with spouts 50, 50... Having a predetermined diameter at predetermined intervals.
The spraying operator sits on the seat 33 from the lifting step 36 and first inputs various set values. For example, the set fertilizer application amount and specific gravity of the powder spray fertilizer to be sprayed are input. Then, a fan switch (not shown) and a spray switch (not shown) are turned on to advance the aircraft. The control device 100 (FIG. 4) controls the rotation of the left and right roll drive motors 25, 25 based on the vehicle speed detected by the vehicle speed sensor 83, drives the blower fan 12 a, and controls the feeding devices 11, 11 from the fertilizer tank 10. The fertilizer 51 is sprayed through the jet tubes 13 and 13 and the spraying booms 14 and 14 while controlling the fertilizer that is fed out.

  And the granular material spreader 2 of this embodiment has provided the bubble dripping apparatus 53 which dripped the bubble 67 used as the mark of a spreading area to the field in the vicinity of the fertilizer spreading apparatus 1. FIG. The foam dropping device 53 includes a foam tank 57 containing a liquid containing a surfactant (bubble agent) provided on the step 55 behind the fertilizer tank 10, a compressor 59 for feeding the liquid in the foam tank 57, A pipe 60 that transports the liquid fed by the compressor 59, a liquid (bubble) dripping port 62 provided in the pipe 60, and the like. The foaming liquid can be easily formed by, for example, dissolving a detergent in water.

  As described above, the spraying operator turns on a fan switch or a spraying switch (not shown) and advances the machine body to start the spraying work. At this time, the compressor switch 85 (FIG. 4) is turned on to turn on the compressor 59. When activated, the liquid in the foam tank 57 passes through the pipe 60 and becomes a foam 67 from the dripping port 62 and is dripped continuously or discontinuously on the crop 65 in the field. In this manner, the fertilizer 51 spraying operation and the foam 67 dropping operation can be performed simultaneously.

  With this configuration, by dropping the foam 67 serving as a mark of the spray area onto the crop 65 in the field by the foam dropping device 53, where the fertilizer 51 is sprayed, even where it is working alone. It is possible to easily see and judge whether it has been scattered. Accordingly, an assistant for the work is not necessary, and the work can be performed alone.

  Further, since the bubbles 67 do not disappear immediately, it becomes a sufficient mark in the turning operation at the time of pillow, and the positioning of the spraying boom 14 becomes very easy. And by being able to grasp an exact spreading area, in the next spreading work, the granular material spreader 2 can be run with an appropriate strip, and the spreading areas overlap and the fertilizer 51 is wasted or there is no spreading area. The problem of being generated does not occur.

  Moreover, although the dropping port 62 of the bubble 67 may be provided in multiple places in the piping 60, it is provided one place in the front-end | tip part of the right and left piping 60 and 60, and also the dropping port 62 is left and right rather than the right and left spreading booms 14 and 14. If the length of the pipe 60 is set so as to be located on the outside, the liquid can be saved and the spray area can be covered. If the dripping port 62 is provided in the vicinity of the jet outlets 50, 50 at the left and right ends of the left and right spraying booms 14, 14, it is possible to prevent mistakes in which the positions of the bubbles coincide with the spraying areas and the spraying areas overlap.

  Further, by providing the step 55 at a height of about 1 meter from the farm scene and installing the foam tank 57, the compressor 59, etc. thereon, it is easy to supply water or the like when the foam tank 57 becomes empty. It is possible and convenient. And the foam tank 57 is the left-right direction center part of an airframe, Comprising: If it arrange | positions in the substantially same position (overlapping position) by the rear view behind the fertilizer tank 10, the granular material spreader 2 will become a compact structure, and the large size of an airframe will be carried out. Can be prevented. The shape of the foam tank 57 is a U-shaped cross section having a space portion below, and the compressor 59 is accommodated in the space portion. By providing the compressor 59 at a position that fits in the foam tank 57 and the foam tank 57 in the rear view, the foam tank 57, the compressor 59, etc. do not interfere with the opening and closing and storage operations of the spraying boom 14 of the fertilizer spraying device 1. There is no reduction in spraying workability.

As shown in FIGS. 2 and 3, the piping 60 of the foam dropping device 53 is provided on the left and right sides of the foam tank 57, and extends along the longitudinal direction of the left and right spreading booms 14. Thus, since the bubble dripping apparatus 53 is provided with the piping 60 which conveys a bubble along the longitudinal direction of the spreading | diffusion boom 14, it becomes a compact structure. Further, since the pipe 60 extends straight along the spraying boom 14, the liquid (bubbles) can be passed through, and can be sent to the dropping port 62 in a smooth manner. Accordingly, it is possible to shorten the time for the foam 67 to come out. Further, the spray boom 14 may be supported by the pipe 60 of the foam dropping device 53. The pipe 60 is connected to the left and right side surfaces of the foam tank 57 and is connected to and supported by the spray boom 14 by a plurality of support members (for example, brackets, hooks, etc.) 70 provided at the front of the pipe 60. The pipe 60 uses a lightweight member such as an aluminum alloy.

With this configuration, the piping 60 of the foam dropping device 53 also serves as a support member for the spreading boom 14, whereby a simple and low-cost support structure for the spreading boom 14 can be formed.
Furthermore, by making the dripping port 62 into a bellows-shaped cup, the bubbles 67 are easy to accumulate and difficult to disappear. Therefore, it is possible to reliably grasp an accurate spray area.
In particular, if a conical bellows cup with a wide end is used, the bubbles 67 are more likely to accumulate and large bubbles 67 are more easily formed, so that the bubbles 67 do not disappear in a short time. Therefore, it is possible to carry out the work slowly and carefully without panicking even when the aircraft is turning at the time of pillow.

  As described above, the spray boom 14 is supported by the pipe 60 of the foam dropping device 53, and the dripping port 62 of the bellows-shaped cup is provided so as to be located on the left and right outside of the left and right spray booms 14,14. In addition, it is possible to provide a granular material spreader 2 having a simple design structure in which the number of parts is suppressed and the accuracy of fertilizer spraying can be improved.

  The base of the pipe 60 of the foam dropping device 53 is configured to be turnable to the left and right with respect to the airframe, and the pipe 60 is integrated with the spraying boom 14 via the support member 70. The pipe 60 operates in the same manner as the spreading boom 14 is opened and closed. Therefore, the piping 60 can be changed between the dripping work state and the non-working state only by the opening / closing operation of the spraying boom 14 by the one-touch operation of the opening / closing switch 40, so that the operability and workability are excellent.

FIG. 5 shows an enlarged rear view of the spray boom part. In this figure, members such as the piping 60 of the foam dropping device 53 are omitted.
The spreading boom 14 is connected to a wire 72 on the airframe side via a bracket 48, and the wire 72 is wound around a pulley 78 disposed on the upper side of the main frame 77 of the fertilizer spreading device 1. After being wound around the pulley 79 at the lower part, the wire end is fastened to an interlocking member (not shown) interlocked with the lifting handle 75.

  The operator can operate in the direction in which the wire 72 extends and contracts by turning the lifting handle 75 in the vicinity of the seat 33, and the spray boom 14 can be easily lifted and lowered by manual operation of the lifting handle 75. At this time, if the pipe 60 is integrated with the spreading boom 14 by the support member 70, the pipe 60 operates in the same manner as the spreading boom 14 is raised and lowered.

  During spraying of chemical fertilizer and the like, if it is desired to quickly drop the foam 67 when the timing of dropping the foam 67 does not match, the handle 60 is temporarily moved up and down by turning the lifting handle 75 to vibrate the tube 60. This makes it easier to produce bubbles that are hard to come out. Accordingly, the bubbles 67 can be dropped in a planned manner.

  Further, the rotation sensor 27 of the roll drive motor 25 of the feeding device 11 is provided on a motor shaft (not shown), and the compressor 59 is operated by the control device 100 when the rotation sensor 27 detects the rotation of the roll drive motor 25. Also good. With this configuration, the foam dropping device 53 can be operated almost simultaneously with the start of the spraying operation. Therefore, it is possible to save the trouble of operating the foam dropping device 53 separately from the granular material spraying device 1 and to prevent mistakes caused by forgetting to press the switch operation of the compressor switch 85 of the foam dropping device 53. In other words, this configuration has an advantage that the bubble 67 can be dropped at the time of the spraying operation.

FIG. 6 shows a plan view of the vicinity of the dropping port of another example of the bubble dropping device 53.
FIG. 6 shows a case where the piping 60 of the foam dropping device 53 is provided at a position overlapping the spreading boom 14 in plan view and the spreading boom 14 is supported from above. And the dripping port 62 is offset and provided with respect to the spreading | diffusion boom 14 by bending the front-end | tip of the piping 60 back from the extended line of the spreading | diffusion boom 14. FIG.

  Fertilizer 51 is sprayed from the spout 50 of the spraying boom 14, but since the fertilizer 51 sprayed from the spout 50 at the tip of the spray boom 14 is blown to the left and right, the extension of the spray boom 14 to the tip is extended. When provided on the line, the fertilizer 51 may hit the dripping port 62 at the tip of the pipe 60.

  However, in this configuration, since the dripping port 62 is located behind the spout 50, the fertilizer 51 does not hit the dripping port 62 at the tip of the pipe 60, and the spraying accuracy does not decrease. In addition, even when the pipe 60 of the foam dropping device 53 is provided behind the spray boom 14 as shown in FIG. 2, it is possible to more reliably prevent the spraying accuracy from being lowered by bending the tip of the pipe 60 rearward.

  The present invention is also applicable to a self-propelled granular material spreader that spreads fertilizer and the like in front of the cockpit. It can also be applied to a self-propelled chemical spraying device that sprays liquid.

DESCRIPTION OF SYMBOLS 1 Granules spreading apparatus 2 Granules spreading machine 3 Engine 4 Front wheel 5 Rear wheel 6 Airframe frame 10 Tank 10a Partition wall 11 Feeding device 12 Blower 12a Blower fan 12b Electromagnetic clutch 13 Jet pipe 14 Spray boom 16 Bellows pipe 25 Roll drive motor 27 Rotation sensor 30 Cylinder 31 Blow cylinder 32 PTO shaft 33 Passenger seat 36 Lifting step 40 Opening / closing switch 45 Telescopic cylinder 48 Bracket 50 Spout 51 Fertilizer 53 Foam dropping device 55 Step 57 Foam tank 59 Compressor 60 Piping 62 Dropping port 65 Crop 67 Foam 70 Support member 72 Wire 75 Lifting handle 77 Frame 78, 79 Pulley 83 Car speed sensor 85 Compressor switch 100 Control device

Claims (2)

A traveling device (4, 5);
A storage unit (10) that is provided on the traveling device (4, 5) and stores the particulate matter, and a spraying boom (14) that sprays the particulate matter stored in the storage unit (10) to the field. A particulate spraying device (1);
A bubble dropping device (53) provided in the vicinity of the granular material spraying device (1) for dropping the foam serving as a marker of the spraying region to the field,
The bubble dropping device (53) includes a bubble dropping port (62) and a pipe (60) for conveying bubbles along the longitudinal direction of the spray boom (14),
The pipe (60) is integrated with the spreading boom (14) by the support member (70), and
The dripping port (62) is provided at the left and right end portions of the pipe (60) and outside the jet port (50) at the left and right ends of the spraying boom (14), and has a conical bellows-like cup with a wide end. Is formed downward ,
The spout (50) at the left and right ends of the spraying boom (14) is configured to spray the granular material toward the left and right outer sides,
Self-propelled type characterized in that the dropping port (62) is offset from the spreading boom (14) by bending the tip of the pipe (60) backward from the extended line of the spreading boom (14). Granular material spreader. The spreading boom (14) is connected to the wire (72) on the fuselage side, the wire (72) is wound around the pulley (78), and the wire (72) is configured to be extendable and retractable by the lifting handle (75). The self-propelled granular material spreader according to claim 1 .

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