JP2003289785A - Apparatus for spraying chemical, apparatus for forming levee, method for spraying chemical and method for spraying chemical and fertilizing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform spraying operation of a chemical simultaneously with rotary tillage operation and disperse and mix the chemical in and within the range of a necessary part in an apparatus for spraying the chemical. <P>SOLUTION: The apparatus is obtained by making a chemical discharging port 62 for discharging the chemical enter the region of an area where soil is scattered with tillage tines 18 of a rotary tillage part 9 for tilling the soil by rotating the plurality of tillage tines 18 mounted on the tine shaft 17 around the shaft center of the tine shaft 17. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chemical spraying device for carrying out a chemical spraying work simultaneously with a rotary tilling work, and a rotary tilling work, a chemical spraying work, a fertilizing work and a furrowing work at the same time. The present invention relates to a ridge forming device, a chemical spraying method, and a chemical spraying / fertilizing method.

[0002]

2. Description of the Related Art Conventionally, a rotary tiller is mounted on the rear part of a tractor, and a ridge former is provided behind the rotary tiller so that the soil is cultivated by the rotary tiller while the tractor is running and the tiller is cultivated. 2. Description of the Related Art There is a ridge forming device that can perform a rotary tilling operation and a ridge forming operation at the same time by forming a ridge with soil using a ridge forming machine. Further, some of the ridge forming apparatuses are equipped with a fertilizer applying device so that the fertilizer applying operation can be performed simultaneously with the ridge making operation.

When seedlings are transplanted to a ridge by a transplanter, for example, in order to prevent root-knot disease, etc., a drug consisting of a powder agent such as nevidin or freonside is sprayed on the ridge,
Although seedlings are transplanted, the chemicals burn when the chemicals come into direct contact with the roots of the crops.Before transplanting seedlings, be sure to stir the topsoil to which the chemicals have been sprayed by the rotor of a walk-type management machine. There is.

[0004]

The above-mentioned prior art has a problem that a separate stirring operation is required to mix the chemical with the soil. Therefore, as shown in FIG. 7, by arranging the lower portion of the chemical spray hose 91 for spraying chemicals in front of the rotary tiller 92 of the rotary tiller, and supplying the medicine to the front side of the rotary tiller 92, It is considered that the chemical spraying work can be performed at the same time as the rotary tilling work, and the drug can be diffused into the soil.

In spraying the drug, it is desired to surely apply the minimum necessary amount to a necessary place from the viewpoint of the environment. In the case shown in FIG.
The medicine (powder) discharged from the medicine spraying hose 91 is scattered by the soil E which is thrown from the tilling claw 93 rotating in the direction of the arrow B toward the front and lower side, causing a loss and mixing the medicine. There is a problem that you can not aim at the place you want (necessary). It should be noted that by providing a subsoiler on the front side of the rotary tillage part and dropping and supplying the medicine into the groove formed by this subsoiler, it is possible to prevent the medicine from scattering, but the cost is increased due to the provision of the subsoiler. However, there is a problem that the traction resistance of the tractor is heavy.

In view of the above problems, the present invention mainly enables the operation of spraying a medicine at the same time as the rotary tilling operation, and the diffusion of the medicine to a necessary portion and within the range of the necessary portion. The purpose is to let it mix in the soil.

[0007]

The technical means taken by the present invention to solve the technical problem is to rotate a large number of tillage claws mounted on a nail shaft around the axis of the nail shaft. It is characterized in that a medicine discharge port for discharging a medicine is inserted into an area of an area where soil is scattered by a tilling claw of a rotary tilling part for cultivating. Further, it is preferable that the medicine discharge port is arranged on the front side of the rotary tilling section for performing the down-cut tilling by rotating and cutting the tilling claw downward with respect to the soil.

Further, it is preferable that the vertical and horizontal positions or the direction of the medicine discharge port can be changed. Also,
Another technical means is to arrange a ridge former behind a rotary tiller that cultivates soil by rotating a large number of tillers attached to the nail shaft around the axis of the nail shaft, and to arrange a rotary tiller. In the area of the area where the soil is scattered by the tillage nails on the front side of, the chemical discharge port for discharging the chemical is made to enter,
A feature is that a fertilizer discharge port for discharging fertilizer is inserted into the soil in the ridge molding machine.

[0009] Another technical means is to supply chemicals to the front side in the region of the area where the soil is scattered by the tilling claw rotating around the axis of the nail shaft, and at the same time to remove the soil cultivated by the tilling claw, It is characterized in that the ridges are formed by a ridge forming device arranged at the rear of the rotary tillage part. Another technical means is to supply the chemical to the front side in the area of the area where the soil is scattered by the tilling claw that rotates around the axis of the claw shaft, and at the same time, the soil cultivated by the tilling claw is used for the rotary tilling part. It is characterized in that the ridge is formed by the ridge forming device arranged at the rear of the ridge, and the fertilizer is discharged from the fertilizer discharge port inserted into the soil in the ridge forming device.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a ridge forming apparatus capable of simultaneously performing a rotary tilling work, a chemical spraying work, a fertilizing work and a ridge making work in one operation (one step). The ridge forming device 1 is a tractor. It is mounted on the rear part of the unit 2 via a three-point link mechanism 3 so as to be able to move up and down. The three-point link mechanism 3 includes an upper top link 28 and a lower left and right pair of lower links 29. The front end side of the top link 28 is attached to a rear portion of the tractor 2. The front end sides of the left and right lower links 29 are pivotally attached to the rear part of the tractor 2 via a ball joint or the like.

The top link 28 and the left and right lower links 2
The rear end side of 9 is pivotally attached to a connecting frame 31 connected to the ridge forming apparatus 1 via a ball joint or the like. A hydraulic device 32 for raising and lowering the working machine is provided at a rear portion of the tractor 2. The hydraulic device 32 includes a pair of left and right lift arms 33, and the left and right lift arms 33 are provided with a left and right lower arms via a lift rod 34. The three-point link mechanism 3 is connected to the link 29 and the left and right lift arms 33 swing up and down.
Swings up and down, whereby the ridge forming apparatus 1 can be moved up and down.

The ridge forming device 1 comprises a rotary tiller 4
The ridge forming device 5, the medicine supplying device 6, and the fertilizer applying device 7. In the present embodiment, a side drive type rotary is adopted as the rotary tiller 4 and the machine frame 8 and
The rotary tillage part 9, the tillage cover 10, and the support frame 12 which attaches and supports a pair of left and right gauge wheels 11 are provided. The machine frame 8 has support arms 15 protruding left and right from a gear case 14 at the center in the left-right direction, a transmission case 16 attached to the outer end of the left support arm 15, and a side frame attached to the outer end of the right support arm 15. It is configured as a front view gate type.

A top mast 35 is fixed on the gear case 14, and the top mast 35 and the left and right support arms 15 are detachably and pivotally connected to the connecting frame 31. The rotary tiller 9 includes a pawl shaft 17 rotatably supported between lower portions of the transmission case 16 and the side frame, and a pawl shaft 17 having a left-right axial center, and a large number of mounts fixed on the pawl shaft 17 in the axial direction. The cultivating claw 18 is rotated around the axis of the claw shaft 17, and the plowing claw 18 rushes into the soil by rotatably driving the claw shaft 17 around the axis. Is constructed so that it can be cultivated and crushed.

In this rotary tiller 4, a tilling claw 18 is constituted by a down-cut rotary for rotating down-cutting against soil and down-cutting tilling, and the tilling claw 18 is shown by an arrow in FIGS. Rotate in the B direction. In addition,
The rotary cultivating device 4 may be configured by an up-cut rotary that performs the up-cut cultivating by rotating the plowing claw 18 upwardly with respect to the soil, and the rotary cultivating device 4 adopts the center drive type rotary. Good. Further, in this embodiment, the P of the tractor 2 is
The pawl shaft is transmitted from the TO shaft 19 to the transmission mechanism in the gear case 14 via the universal joint, and by the power transmitted from the gear case 14 via the transmission shaft in the left support arm 15 and the transmission mechanism in the transmission case 16. 17 is driven to rotate in the direction of arrow B.

As shown in FIGS. 1 to 3, the cultivating cover 10 includes an upper cover 21 which covers an upper part of the rotary cultivating portion 9,
A rear cover 22 that covers the rear of the rotary tiller 9 and front and rear side covers 2 that covers the left and right sides of the rotary tiller 9.
3, 24, and the front cover 25 and the like extending from the front end side of the upper cover 21 to the front lower side, the cultivating cover 10 prevents the scattering of the soil cultivated by the cultivating claw 18, and The soil thrown from the tilling claw 18 collides with each other to perform crushing. The upper cover 21 and the side covers 23 and 24 are fixed to the machine frame 8, and the front cover 25 is attached and fixed to the front end side of the upper cover 21 (the front cover 2
5 may be integrally formed with the upper cover 21).

The front end side of the rear cover 22 is rotatably supported on the rear end side of the upper cover 21 about the axis in the left-right direction, and the rear end side of the rear cover 22 is a rotary tiller 9. It is placed on the ridge forming device 5 arranged at the rear of the. The rear cover 22 is urged downward by an elastic member (not shown). The ridge forming device 5 is for forming a ridge R with the soil cultivated in the rotary cultivating section 9,
It is provided with left and right side plates 5A that form the left and right side surfaces of the ridge R and an upper plate 5B that forms the upper surface of the ridge R, and is formed in an open shape in the front and rear and in the lower side, and is rotary cultivated by a mounting device (not shown). It is attached to and supported by the device 4.

Further, the ridge former 5 is provided at the front part of each of the left and right side plates 5A so as to project outward in the left-right direction, and the soil cultivated in the rotary tiller 9 is ridged. Is provided with a guide plate that guides the front end opening. The front end side of the support frame 12 is pivotally attached to the support arm 15 so as to be rotatable about the left and right axes, and the rear end side of the support frame 12 has a toolbar 36 arranged in the left and right directions. The gauge wheel 11 is attached to the lower ends of the columns 37 attached to both sides so as to be rotatable around the left and right axes.

Further, the support frame 12 and the top mast 3
The supporting frame 12 can be vertically swung around the front end pivotal portion by an elevating operation mechanism 26 provided between the supporting frame 12 and the supporting frame 12. The chemical supply device 6 is equipped with a chemical tank 38 for storing chemicals, and the fertilizer application 7 is a fertilizer tank 3 for storing fertilizers.
9, the medicine tank 38 and the fertilizer tank 39 are attached to a supporting device 40. The support device 40 has a pair of left and right columns 41, and the left and right columns 4
The lower part of 1 is pivotally attached to a mounting base 42 fixed to each of the left and right support arms 15 so as to be rotatable about an axis in the left-right direction.

Further, the left and right columns 41 are constructed so that their lengths can be freely adjusted, and the left and right tool bars 43 are provided on the upper end side.
The medicine tank 38 is attached to the front side of the toolbar 43 by the attachment body 44, and the fertilizer tank 39 is attached to the rear side of the toolbar 43 by the attachment body 45.
Is attached. A bracket 46 is fixed to the tool bar 43, and one end side of a posture adjusting rod 47 is pivotally attached to the bracket 46 via a ball joint or the like. The other end side of the posture adjusting rod 47 is in the middle of the lift rod 34. It is pivotally attached to a mounting base 48 fixed to the section via a ball joint or the like, and supports the support column 41 so as not to rotate.

Further, the posture adjusting rod 47 is configured to be extendable / contractible in the length direction, and the postures of the medicine tank 38 and the fertilizer tank 39 can be adjusted by extending / contracting the posture adjusting rod 47. The chemical tank 38 and the fertilizer tank 39 can be held horizontally. The medicine tank 38 and the fertilizer tank 39 are provided with a feeding device at their lower portions so that the medicine can be discharged from the feeding opening at the lower end of the medicine tank 38 and the fertilizer can be discharged from the feeding opening at the lower end of the fertilizer tank 39, respectively. I am trying.

A control device for controlling the drive motor of the feeding device is provided near the driver's seat of the tractor 2. In addition, the control device is configured to be able to separately adjust the feed amount of the medicine and the feed amount of the fertilizer. Further, the medicine supply device 6 is provided with a pair of left and right medicine conduits 49 that guide the medicine discharged from the medicine tank 38 to the front side of the rotary tiller 9. In the present embodiment, each of the left and right drug conduits 49 has an upper drug hose 50 that communicates with the delivery port at the lower end of the drug tank 38 and a lower drug nozzle 51 that is disposed on the front side of the rotary tiller 9. And a connecting pipe 52 connecting the medicine hose 50 and the medicine nozzle 51.

The medicine hose 50 has flexibility. The left and right connecting pipes 52 are attached to the left and right support arms 15 by an attachment body 54. As shown in FIGS. 3 to 5, each of the left and right support arms 15 is provided with a U-shaped bracket 53 fixed to the upper side in a protruding manner, and the mounting body 54 is externally fitted to the bracket 53. U-shaped mounting portion 57 that is fixed to the bracket 53 by the left and right bolts 55 and the nut 56 that is screwed to the bolt 55, and the support that extends downward from the front portion of the mounting portion 57. The arm 58 and this support arm 5
The guide member 59 fixed to the lower part of the left and right in a protruding manner in the left-right direction, the tubular body 59 fitted onto the guide member, and the stay 60 and the like provided in a forward projecting manner from the tubular body 59. It is configured.

The connecting pipe 52 extends vertically through the stay 60 and is fixed to the stay 60 by welding or the like. The front end side of the support frame 12 is pivotally connected to the bracket 53 via a bolt 55. The lower end side of the medicine hose 50 is externally fitted on the upper side of the connection tube 52, and the medicine nozzle 51 is attached on the lower side of the connection tube 52.
The upper side of the is externally fitted and fixed. The lower end opening of the medicine nozzle 51 is a medicine discharge port 6 for discharging the medicine.
The lower side of the medicine nozzle 51 is bent obliquely rearward and downward (inclined direction in which it moves downward as it goes rearward), and enters the lower side of the front cover 25 of the tillage cover 10.

As a result, the medicine discharge port 62 at the lower end of the medicine nozzle 51 is inserted into the area of the area where the soil is scattered (the soil is released) by the tilling claw 18, and therefore the medicine tank. The medicine discharged from 38 to the front side of the rotary tillage section 9 through the medicine conduit 49 does not scatter by the soil E thrown from the tilling claw 18, whereby the medicine is discharged to the rotary tillage section 9. Can be locally supplied in the left-right direction. The medicine locally supplied in the left-right direction of the rotary tiller 9 is agitated by the rotary tiller 9 and dispersed in the local range in the left-right direction of the rotary tiller 9, after which ridges are formed. As shown in FIG. 6, the drug can be locally mixed in the width direction (left-right direction) of the ridge R, and the drug can be dispersed within the range in which the drug is locally mixed. It can be done.

In FIG. 6, a range C illustrated by a dotted line shows a range in which the medicine is mixed. Also, S
Indicates a seedling planted in the ridge R. In addition, in this Embodiment, since it is the ridge shaping | molding apparatus 1 which shape | molds the ridge R corresponding to two-row planting, the chemical | medical agent conduit 49 is provided in right and left one pair, but when shaping the ridge R corresponding to one-row planting , One is provided in the central portion in the left-right direction of the rotary tillage part 9, and three are provided when a ridge R corresponding to three-row planting is formed. The guide member 59 of the mounting body 54 is formed in a hexagonal column shape, and the tubular body 60 is formed in a hexagonal tubular shape to prevent rotation, and the tubular body 60 is arranged in the axial direction of the guide member 59. It is supposed to be movable.

Therefore, by moving the tubular body 60 in the axial direction of the guide member 59, the lateral position of the medicine nozzle 51, that is, the medicine discharge port 62 can be changed (adjustable). A nut body 63 is fixed to the tubular body 60, and the screw hole 6 of the nut body 63 is fixed.
A through hole 65 communicating with 4 is formed, and the cylinder body 60 can be fixed in position with respect to the guide member 59 by a bolt 66 screwed into the nut body 63 and pressed against the guide member 59 through the through hole 65. It is like this.

In FIG. 4, 67 is a lock nut. Further, the upper portion of the medicine nozzle 51 is fitted onto the connection pipe 52 so as to be rotatable about its axis and movable in its axis direction, and the medicine nozzle 51 is rotated about its axis with respect to the connection tube 52. By doing so, the left-right direction of the medicine discharge port 62 can be freely changed (adjustable), and the medicine nozzle 51 can be connected to the connecting pipe 5.
The vertical position of the medicine discharge port 62 is changeable (adjustable) by moving it in the axial direction with respect to 2. A reinforcing plate 68 is provided on the outer surface of the upper portion of the medicine nozzle 51.
Is fixed, and the nut body 69 is attached to the outer surface of the reinforcing plate 68.
Through holes 71 communicating with the screw holes 70 of the nut body 69 are formed in the reinforcing plate 68 and the medicine nozzle 51. The through holes 71 are screwed into the nut body 69 and pressed by the connecting pipe 52 through the through holes 71. The bolt 72 can fix the position of the medicine nozzle 51 with respect to the connection pipe 52.

In FIG. 4, 73 is a lock nut. Further, in the present embodiment, the medicine nozzle 51 is arranged in a rearward inclination shape and is inclined with respect to the vertical direction, but it may be arranged along the vertical direction. Further, by swinging the mounting body 54 around the axis of the bolt 55 to adjust the angle, the position and direction of the medicine discharge port 62 can be adjusted back and forth. The fertilizer application device 7 is provided with a pair of left and right fertilizer conduits 75 that guide the fertilizer discharged from the fertilizer tank 39 into the soil in the ridge former 5.

In the present embodiment, each of the left and right fertilizer conduits 75 is mainly composed of an upper fertilizer hose 76 which communicates with the lower feed port of the fertilizer tank 39 and a lower fertilizer nozzle 77. The fertilizer hose 76 is flexible and the lower end side is connected to the upper end side of the fertilizer nozzle 77. The fertilizer nozzle 77 is arranged at the rear of the rotary tillage part 9, the upper part thereof penetrates the rear cover 22 and projects upward, and the lower part thereof is bent obliquely rearward and downward. The fertilizer discharge port 78 is inserted into the soil in the ridge molding machine 5, and the fertilizer discharge port 78 is open rearward.

The fertilizer nozzle 77 is supported on the rotary tiller 4 side by a support device (not shown).
In addition, the fertilizer nozzle 77 may penetrate the upper plate 5B of the ridge forming device 5. In the fertilizer application device 7,
As shown in FIG. 6, when the ridge R is formed, it can be mixed into the ridge R in a pinpoint manner in the width direction of the ridge R, and the fertilizer can be appropriately applied to the position corresponding to the planting position of the seedling S. In addition, in FIG. 6, a portion D illustrated by a solid line indicates a portion in which fertilizer is mixed.

The fertilizer discharge port 78 (fertilizer nozzle 7
7) is also a position in the left-right direction, similar to the medicine discharge port 62,
It is preferable that the position in the vertical direction, the position in the front-back direction, or the direction in the vertical direction can be freely changed.

[0032]

According to the present invention, the area where the soil is scattered by the tilling claws of the rotary tiller for plowing the soil by rotating a large number of tilling claws mounted on the nail shaft around the axis of the nail shaft. By inserting the medicine discharge port for discharging the medicine into the area of, the medicine can be sprayed at the same time as the rotary tilling work, and the medicine is prevented from being scattered by the soil thrown from the tilling nail. Therefore, the drug can be applied to a required place with a minimum required amount surely and diffused (dispersed) within the range of a required portion.

Further, the above-mentioned effect can be preferably obtained by disposing the medicine discharge port on the front side of the rotary tilling part for performing the down-cut tilling by rotating and cutting the tilling claw downward with respect to the soil. Further, the vertical or horizontal position or the direction of the drug discharge port can be changed, so that the drug discharge port can be arranged at the optimum position that achieves the above-described effects. In addition, a ridge forming device is disposed behind the rotary tiller that cultivates soil by rotating a large number of tillers attached to the nail shaft around the axis of the nail shaft. By inserting the fertilizer outlet for discharging the fertilizer into the soil in the ridge molding machine, the medicine is required by inserting the medicine outlet for discharging the medicine into the area where the soil is scattered by the nail. It is possible to mix it into the necessary part by diffusing it within the range of the necessary part, and the fertilizer can be mixed into the necessary part without being diffused.

Further, the chemicals are supplied to the front side in the area of the area where the soil is scattered by the tilling claws rotating around the axis of the claw shaft, and the soil cultivated by the tilling claws is arranged behind the rotary tilling part. By forming the ridges by the ridge forming machine, it is possible to mix the drug locally in the width direction of the ridge, and to disperse the drug within the range in which the drug is mixed locally. be able to. In addition, while supplying chemicals to the front side in the area of the area where the soil is scattered by the tilling claws that rotate around the axis of the claw shaft, the soil cultivated by the tilling claws is placed at the rear of the rotary tilling section. By molding the ridge by the vessel, and by allowing the fertilizer to be discharged from the fertilizer discharge port inserted into the soil in the ridge molding machine,
A drug can be locally mixed in the width direction of the ridges, and the drug can be dispersed within the range in which the drug is locally mixed, and a fertilizer is required in the width direction of the ridges. It can be mixed without being diffused in the part.

[Brief description of drawings]

FIG. 1 is a side view showing a state in which a ridge forming device is mounted on a tractor.

FIG. 2 is a side view of the ridge forming apparatus.

FIG. 3 is a side view of a drug spraying portion.

FIG. 4 is a cross-sectional view showing a support structure for a chemical spray nozzle.

5 is a cross-sectional view taken along the line AA of FIG.

FIG. 6 is a cross-sectional view in the width direction of the ridge showing the state of spraying and fertilizing the drug on the ridge.

FIG. 7 is a side view of a sprayed portion of a medicine according to a comparative example.

[Explanation of symbols]

5 ridge molding machine 9 Rotary tillage section 17 nail axis 18 tillage nails 62 Drug outlet 78 Fertilizer outlet R ridge

Continued front page    F term (reference) 2B034 AA09 BA01 BA07 BB02 BC06                       JA07 JA12 JA15 JA18 JB01                       JB02 JB15 JB17                 2B052 BA04 BA05 BB03 BC05 BC08                       BC10 BC13 CA07 DA02 DB02                       EB08 EC02                 2B121 AA20 CB09 CB20 CB25 CB33                       CB47 CB55 FA06

Claims (6)

[Claims] 1. A chemical agent is provided in a region of an area where soil is scattered by a tilling claw of a rotary tiller for tilling soil by rotating a large number of tilling claws mounted on the nail shaft around an axis of the nail shaft. A chemical spraying device, characterized in that a chemical discharge port for discharging the chemical is introduced. 2. The chemical spraying device according to claim 1, wherein the tillage claw has a medicine discharge port arranged on the front side of a rotary tillage section for performing down-cut tillage by rotating downwardly cutting the soil. 3. The drug spraying device according to claim 1, wherein the drug discharge port can be changed in the vertical position, the horizontal position or the direction. 4. A ridge former is arranged behind a rotary tiller for cultivating soil by rotating a large number of tillers attached to the nail shaft around the axis of the nail shaft, and a front side of the rotary tiller is provided. And, in addition to letting the drug discharge port for discharging the drug into the area of the area where the soil is scattered by the tilling claw, the fertilizer discharge port for discharging the fertilizer is inserted into the soil in the ridge molding machine. A ridge forming device. 5. The chemical is supplied to the front side in the region of the area where the soil is scattered by the tilling claw rotating around the axis of the nail shaft, and the soil cultivated by the tilling claw is arranged behind the rotary tilling part. A method for spraying chemicals, characterized in that the ridges are formed by the ridge forming device. 6. The chemical is supplied to the front side in the area of the area where the soil is scattered by the tilling claw that rotates around the axis of the claw shaft, and the soil cultivated by the tilling claw is arranged behind the rotary tilling part. A method for spraying and fertilizing chemicals, characterized in that a ridge is formed by the ridge forming machine, and the fertilizer is discharged from a fertilizer discharge port inserted into the soil in the ridge forming machine.