JPH0974801A - Agricultural working machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an agricultural working machine capable of readily loading and unloading a chemical tank, preventing a chemical from overflowing during operation and simply collecting and spraying the reduced residual quantity of the chemical in the chemical tank to sterilize and improve soil. SOLUTION: Main body 1 of the working machine is horizontally equipped with a rotary central shaft 45. A tank supporting member 46 loading and supporting a chemical tank 57 is installed on the rotary central shaft 45. The main body 1 of the working machine is equipped with a cylinder device 53 for supporting the tank supporting member 46 rotatably and adjustably in a standing state and an inclined state around the rotary central shaft 45. The chemical tank 57 having a chemical injection hole 59 is loaded on the tank supporting member 46. A chemical suction pipe 62 connected to a pump 60 is inserted from the chemical injection hole 59 of the chemical tank 57 into the chemical tank 57. Spraying nozzles 22 and 32 are arranged along the rear edge parts of grinding blade materials 18 and 22 of the main body 1 of the working machine.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an agricultural work machine, and more particularly to an apparatus for performing soil disinfection and soil improvement in a field where leaf vegetables, root vegetables and the like are cultivated.

[0002]

2. Description of the Related Art Conventionally, as an agricultural working machine of this type, for example, a tank support is arranged and fixed to a machine body of a subsoiler having a crushing blade body for crushing the core soil, inclining rearward with respect to the traveling direction. Then, on this tank support, the chemical liquid tank is mounted and supported with the chemical liquid injection port arranged on the front side,
Insert the chemical solution suction pipe into the chemical solution tank from the chemical solution injection port of this chemical solution tank, and crush the core soil with the crushing blade while the disinfectant solution in the chemical solution tank extracted from the chemical solution suction pipe is applied to the spray nozzle. There is a configuration that is sprayed on the field.

[0003]

In the above-mentioned conventional configuration,
In order to prevent the chemical liquid from overflowing from the chemical liquid injection port of the chemical liquid tank due to vibration during work, the tank support that mounts and supports this chemical liquid tank is fixed while tilted rearward, and this chemical liquid tank The chemical liquid injection port is arranged on the front side in the direction opposite to the inclination direction, and a space is formed below the chemical liquid injection port.

However, since the tank support is tilted and fixed rearward when the chemical liquid tank is mounted, it is not easy to mount and unload the chemical liquid tank, and when the chemical liquid tank is mounted, the chemical liquid injection port is installed. The chemical solution may spill out of the tank, and in order to extract the chemical solution in the chemical tank to the end when the residual quantity is low, the work is interrupted and the chemical tank is manually inverted and the chemical injection port Is required to be arranged on the rear side in the inclination direction of the tank support to collect the remaining amount of the chemical liquid at the rear bottom portion below the chemical liquid inlet, which is troublesome and is not preferable in terms of work efficiency. There is.

The present invention has been made in view of the above points, and it is easy to mount and unload the chemical liquid tank, and the chemical liquid may overflow from the chemical liquid injection port when the chemical liquid tank is mounted. When working, the chemical solution tank can be easily tilted to form a space below the chemical solution inlet to prevent the chemical solution from overflowing, and the operation is interrupted when the chemical solution level in the chemical solution tank becomes low. It is therefore an object of the present invention to provide an agricultural working machine that can easily collect the chemical liquid on the front bottom of the chemical liquid tank without inverting the chemical liquid tank.

[0006]

The agricultural working machine according to claim 1 is equipped with a chemical solution tank for storing a disinfectant solution such as soil in the working machine body, and sucked from the chemical solution tank into the working machine body. In an agricultural work machine provided with a pump for supplying a spray nozzle for spraying a chemical solution to soil, etc., a rotation center axis is horizontally provided on the work machine body, and a tank support is rotatably attached to the rotation center axis. And a cylinder device for rotatably supporting the tank support in an upright state and an inclined state around the rotation center axis in the working machine body, and a chemical liquid having a chemical liquid injection port in the tank support. A tank is mounted, and a drug solution suction pipe connected to the pump is inserted into the drug solution tank from a drug solution inlet of the drug solution tank.

When the chemical solution tank is mounted, the tank support is horizontally arranged and supported by the cylinder device, so that the chemical solution tank can be easily mounted on the tank support. Further, at the time of work, the cylinder device is used to support the tank support by arranging the tank support in a state of being tilted rearward about the central axis of rotation, so that the chemical solution injection port of the chemical solution tank and the chemical solution on the tank support are supported. A space of a predetermined size is formed between the surface and the surface, and it is prevented that the chemical solution overflows from the chemical solution injection port due to vibration during the work.

When the remaining amount of the chemical solution in the chemical solution tank becomes small, the tank support is arranged and supported by the cylinder device in a state of being inclined forward with respect to the central axis of rotation. It is possible to collect the remaining amount of the chemical liquid in the front bottom portion of the chemical liquid tank located below the chemical liquid injection port of the chemical liquid tank. Then, the drug solution collected on the front bottom part of the drug solution tank is sucked through the suction port of the drug solution suction pipe.

According to a second aspect of the present invention, there is provided an agricultural work machine according to the first aspect, wherein the working machine body is located at a vertical crushing blade body for crushing the core soil and behind the crushing blade body. Each of the crushing blades has a rotatable leveling roller for leveling the ground surface crushed by the crushing blade, and a spraying nozzle is arranged along the trailing edge of the crushing blade. Then, while the core soil is being crushed by the crushing blade, the chemical solution such as the disinfectant solution in the chemical solution tank sucked from the chemical solution suction pipe is sprayed on the surface soil of the field by the spraying nozzle.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a working machine body, which has a main frame 2 in the left-right direction, and plate-shaped side frames in the front-rear direction at both ends of the main frame 2. 3 are integrally connected in parallel to each other in parallel with each other, and lower pins 4 in the left-right direction are horizontally connected to the front end portions of the left and right side frames 3, respectively.

Further, a frame body 5 is projectingly provided at an intermediate portion of the main frame 2, and a front and rear mast 6 is integrally projectingly provided from the frame body 5 toward an upper front side, and a tip portion of the mast 6 is provided. A connection hole 7 is formed in the. Further, the front side portion of the mast 6 and the front end portions of the left and right side frames 3 are connected by a stay 8.

Further, bearing members 9 are connected to the front and rear of the main frame 2 at the middle portion thereof, and an input shaft 10 in the front-rear direction is rotatably mounted on the front and rear bearing members 9. An eccentric roller 11 is fixedly attached to the input shaft 10 between the nine shafts. A vertical transmission case 12 is fixed to an intermediate portion of the main frame 2, and a rear end portion of the input shaft 10 is rotatably projected on an upper portion of the transmission case 12, and a lower end of the transmission case 12 is provided. Mission 13 is provided in the section.
The mission 13 is interlockingly connected to the input shaft 10 via an interlocking medium in the transmission case 12.

Next, front vibrating frames 15 are vertically rotatably mounted on left and right front portions of the left and right side frames 3 by supporting shafts 14 in the left and right directions. A horizontal pipe-shaped interlocking rod 16 is horizontally fixed to the connecting rod 17, and vertical crushing blades 18 are fixed to connecting plates 17 integrally projecting from both ends of the interlocking rod 16. .

The left and right crushing blades 18 have vertical cutting blades 19 for cutting cultivated soil at the lower part of the front edge thereof, and a crushing blade 20 for crushing the core soil is provided at the lower end thereof. A spraying nozzle 22 is integrally provided so as to project downward and has a spraying port 21 at the lower end along the rear edge thereof.
Further, the left and right front vibrating frames 15 are arranged below the main frame 2 between the rear end portions of the left and right interlocking rods 23 in the left-right direction.
A vibration mechanism 24 that is vertically moved by the eccentric rotation of the eccentric roller 11 is provided in the intermediate portion of the interlocking rod 23.

A left and right rotating shaft 25 is rotatably mounted on the rear side portions of the left and right side frames 3, and the left and right front vibrating frames 15 are provided on the left and right portions of the rotating shaft 25. The rear side vibrating frames 26 are integrally projecting toward the front at the rear portions of the left and right front vibrating frames 15 via the links 26a at the front end portions of the left and right rear vibrating frames 26.
Each of the rear end portions is pivotally attached in a vertically rotatable manner.

The left and right front vibrating frames 15 are vertically rotated by the vibrating mechanism 24 about the support shaft 14, and the left and right front vibrating frames 15 are vertically rotated through the link 26a. The left and right rear vibrating frames 26 are vertically rotated about the rotation shaft 25.

Further, on the left and right portions of the rotary shaft 25, connecting plates 27 are located inside the left and right connecting plates 17 and project integrally downward toward the rear rear side. Vertical crushing blades 28 are fixedly attached to each. The left and right crushing blades 28 have vertical cutting blades 29 for cutting the cultivated soil at the lower part of the front edge thereof, and a crushing blade 30 for crushing the core soil at the lower end thereof is directed forward and downward. And a spray nozzle 32 having a spray port 31 at the lower end is disposed along the rear edge thereof.

The left and right front crushing blades 18,
The left and right rear crushing blades 28 disposed between the left and right crushing blades 18 are rotated up and down by the vibrating mechanism 24 about the respective support shafts 14 and rotary shafts 25. The cultivated soil is vertically cut while being moved, and the core soil is crushed to proceed.

Next, brackets 33 are respectively provided on the lower ends of the left and right side frames 3 located in the left and right direction of the mission 13 so as to be opposed to each other and integrally project downward, and the bracket 33 on one side thereof is provided. An output shaft 34 of the mission 13 is rotatably mounted on the shaft.

Horizontal pipe-shaped connecting frames 35 are horizontally and integrally projecting from the left and right brackets 33, and a transmission case 36 in the front-rear direction is provided at the outer end of one of the connecting frames 35. Is vertically rotatably connected, and a support frame 37 in the front-rear direction is rotatably connected to the outer end of the other connecting frame 35 in the vertical direction. Between the case 36 and the rear end, a rotary shaft 39 protruding from both ends of the leveling roller 38
Is rotatably mounted on a shaft.

The rotation shaft 39 of the leveling roller 38 protruding into the rear end of the transmission case 36 and the protruding end of the output shaft 34 protruding into the front end of the transmission case 36 are inside the transmission case 36. Are interlocked and connected by the interlocking medium 40 provided in. Further, the rear side portions of the support frame 37 and the transmission case 36 are connected by a connection frame 41, and the left and right portions of the connection frame 41 are connected to a support mechanism 42 provided at the rear end portions of the left and right side frames 3. It is supported by the vertical position adjustment.
Further, wheels 43 are rotatably mounted on the left and right side frames 3 located between the support frame 37 and the transmission case 36.

Next, the left and right side frames 3 of the working machine body 1 are respectively provided with horizontal left and right shaft supports 44 integrally projecting horizontally. Left and right rotation center shafts 45 are integrally and horizontally provided so as to project outward. Further, a tank support 46 for mounting and supporting a chemical liquid tank, which will be described later, is rotatably attached to the left and right rotation center shafts 45 so as to be rotatable in the front-rear direction.

The left and right tank supports 46 are vertically arranged integrally along a horizontal mounting frame portion 47 formed in a rectangular shape and a rear end portion of the mounting frame portion 47. Rectangular support frame
The support frame 48 and the support frame 48 are formed in a substantially side view L-shape with vertical side uprights at the left and right ends of the support frame 48. Further, a cylindrical bearing body 50 in the left-right direction which is inserted through the rotation center shaft 45 and rotates around the rotation center shaft 45 is integrally fixed to a portion near the lower end of the support frame portion 48. There is. Further, a bracket 51 is integrally projecting rearward at one end near the upper end of the support frame portion 48.

Supports 52 are integrally formed on the outer sides of the left and right side frames 3 behind the left and right shaft supports 44 so as to project outward. The base ends of the left and right cylinder devices 53 are rotatably attached to the respective 52 by mounting shafts 54.
The brackets 51 of the left and right tank supports 46 are rotatably attached to the distal ends of the expandable rods 55 by the support shafts 56.

The left and right tank supports 46 are rotationally adjusted by the telescopic rods 55 of the left and right cylinder devices 53 so as to be upright and tilted in the front-rear direction about the left and right pivot shafts 45. It is supported freely. The left and right cylinder devices 53 include double-acting cylinders, electric cylinders, and the like.

Next, a chemical liquid tank 57 is mounted on each of the left and right tank supports 46. The lid plate 58 of the left and right chemical liquid tanks 57 has a chemical liquid injection port 59 near one end thereof.
Is opened. Then, the left and right chemical liquid tanks 57
Is mounted on the left and right tank supports 46 in a state in which the chemical solution inlet 59 is arranged on the front side opposite to the cylinder device 53.

Next, the left and right side frames 3 of the working machine body 1
A plurality of pumps 60 are mounted and fixed at predetermined intervals in the left-right direction on a left-right mounting frame (not shown) fixed between the pumps 60. Each is driven by the output from the drive means. Further, a chemical liquid suction pipe 62 is connected to one end of each hose 61 connected to each pump 60, and each chemical liquid suction pipe 62 is connected from the chemical liquid injection ports 59 of the left and right chemical liquid tanks 57 to the respective chemical liquid tanks. The suction port 63 at the lower end of each of the chemical liquid suction pipes 62 is inserted into each of the chemical liquid suction pipes 57, and is arranged at a position where it abuts or comes close to the bottom plate portion 64 of the chemical liquid tank 57.

The chemical liquid suction pipe 62 is made of a synthetic resin such as polyethylene or stainless steel, and its suction port 63 is cut and opened with a predetermined inclination angle smaller than 90 degrees with respect to the horizontal plane. Dust removal mesh 65 at the suction port 63
Are stretched together. When the suction port 63 of the chemical liquid suction pipe 62 is brought into contact with the bottom plate portion 64 of the chemical liquid tank 57, the suction port 63 and the bottom plate portion 64 of the chemical liquid tank 57 do not come into surface contact with each other, and the suction port 63 and the chemical liquid A space is formed between the bottom plate portion 64 of the tank 57 and the chemical liquid can be sufficiently sucked, and the dust-removing net body 65 prevents inhalation of foreign matters such as dust from the suction port 63. It is supposed to do.

Each hose connected to each pump 60
One end of 66 is connected to the spray nozzles 22, 32 fixedly arranged along the rear edges of the front, rear, left and right crushing blades 18, 28. Then, by operating each of the pumps 60, a chemical solution such as a disinfectant solution in each chemical solution tank 57 is sucked by the chemical solution suction pipe 62, and the chemical solution is spread by the spray ports 21, 32 of the spray nozzles 22, 32. It is supposed to be sprayed from 31.

Next, the operation of the one embodiment will be described.

The connecting hole 7 of the working machine body 1 is rotatably connected to the top link of the tractor (not shown) by a connecting pin (not shown), and the left and right lower links of the tractor are provided with the working machine body 1. The left and right lower pins 4 are rotatably connected to each other, and the input shaft 10 of the working machine body 1 is spline-fitted and connected to the PTO shaft of the tractor via a power transmission shaft.

Further, the left and right tank supports of the working machine body 1
When the chemical liquid tank 57 is mounted on the 46, the left and right cylinder devices 53 are operated to rotate the left and right tank supports 46 around the respective rotation center shafts 45 by the respective rods 55, and the left and right The tank support 46 is adjusted and set in a standing state in which the mounting frame portion 47 is horizontal. Then, the chemical solution inlets 59 of the chemical solution tank 57 are attached to the left and right tank supports 46 by a cylinder device.
The chemical liquid tanks 57 are mounted in the state of being arranged on the front side opposite to 53, and the chemical liquid tanks 57 are supported and fixed to the tank supports 46 by predetermined supporting means.

At this time, the left and right tank supports 46 are set in the upright state in which the mounting frame portions 47 are horizontal and the support frame portions 48 are vertical. The chemical tanks 57 can be easily installed in each
At the time of this loading, the drug solution in the drug solution tank 57 is loaded without flowing out from the drug solution inlet 59.

After the chemical liquid tanks 57 are mounted on the left and right tank supports 46, the left and right rods 55 contract the rods 55 by operating the left and right cylinder devices 53 to mount the chemical liquid tanks 57. Left and right tank supports
The left and right tank supports 46 are tilted rearward about the respective rotation center shafts 45, and the left and right tank supports 46 are tilted at a predetermined tilt angle.
The chemical liquid tank 57 above 46 is inclined toward the rear side at a predetermined inclination angle.

Then, the liquid medicine inlets of the left and right liquid medicine tanks 57
Between the 59 and the surface A of the chemical liquid, the left and right chemical liquid tanks 57
A space B having a predetermined size corresponding to the inclination angle of
The space B is sized to prevent the chemical solution from flowing out of the chemical solution inlet 59 due to vibration during work.

Next, when the working machine body 1 is pulled by the tractor and the input shaft 10 is rotated by the output from the PTO shaft of the tractor via the power transmission shaft, the eccentric roller of the input shaft 10 is rotated. Vibration mechanism 24 due to eccentric rotation of 11
Is vibrated by being pushed, and this vibration mechanism 24
Left and right front vibrating frames 15 and rotating shafts 25 around 14
The left and right rear vibrating frames 26 are pivoted up and down, respectively, around the center.

By vertically rotating the left and right front vibrating frames 15, the connecting plates 17 are attached to the left and right front vibrating frames 15.
The crushing blades 18 on the front side and the left side on the front side are moved forward and backward, respectively, and the vertical cutting blades 19 of the crushing blades 18 on the left and right sides of the front side sequentially cut the cultivated soil and the crushing blades. At 20 the subsoil is crushed in sequence.

While the left and right rear vibrating frames 26 are pivoted up and down, the rear left and right rear crushing blades 28 connected to the left and right rear vibrating frames 26 via connecting plates 27 are moved back and forth. The cultivated soil is sequentially cut vertically by the vertical cutting blades 29 of the crushing blades 28 on the left and right sides, and the subsoil is sequentially crushed by the crushing blades 30.

While the working machine body 1 is pulled by the tractor, each pump is driven by the driving means provided in the working machine body 1.
When the pumps 60 are operated, the chemical liquids such as the disinfecting liquids in the chemical liquid tanks 57 are sucked from the suction ports 63 of the chemical liquid suction pipes 62 by the pumps 60 through the hose 61, and the chemical liquid tanks 57 are also sucked. The chemical liquid sucked from the spray nozzles 22 and 32 is supplied to the spray nozzles 22 and 32 through the hoses 66.
From each of the spray ports 21 and 31, the soil is successively sprayed into the cultivated soil, that is, the surface soil.

At this time, each chemical liquid tank 57 corresponds to each tank support.
The crushing blades 18, which are supported at 46 by being inclined at a predetermined inclination angle, and have a space B of a predetermined size formed between the respective chemical liquid inlets 59 and the surface A of the chemical liquid, It is possible to prevent the chemical solution from overflowing from each chemical solution injection port 59 due to the vibration during the soil improvement work by 28.

Therefore, the chemical solution such as the disinfectant solution in each chemical solution tank 57 sucked from each chemical solution suction pipe 62 while crushing the core soil by each crushing blade body 18, 28 is spraying port 21 of each spraying nozzle 22, 32. , 31 from the soil, the soil improvement work and the soil disinfection work are carried out simultaneously. Then, the cutting grooves cut by the crushing blades 18 and 28 are sequentially ground by the grounding roller 38 that is slip-rotated while being rotated by the output from the output shaft 34 of the mission 13 that is linked to the input shaft 10. .

Next, each chemical solution tank was subjected to soil disinfection work.
When the remaining amount of the chemical liquid in 57 becomes low, when each rod 55 is extended by operating each cylinder device 53, the respective tank supports 46 having the chemical liquid tank 57 are formed on each rod 55. The tank supports 46 are pushed forward, and the respective tank supports 46 are turned forward about the respective turning center shafts 45.

The respective tank supports 46 are arranged and supported in a state of being inclined to the front side at a predetermined inclination angle, so that the chemical liquid tanks 57 on the respective tank supports 46 and the respective tank supports 46. Similarly, it is disposed and supported in a state of being inclined at a predetermined inclination angle, and the chemical liquid whose remaining amount is small is gathered together at the front bottom part of the bottom plate portion 64 of each chemical liquid tank 57 located below each chemical liquid injection port 59. . Then, the drug solution collected at the front bottom of each drug solution tank 57 is sucked to the end through the suction port 63 of each drug solution suction pipe 62.

When sucking the chemical liquid in each chemical liquid tank 57 from the suction port 63 of each chemical liquid suction pipe 62, the suction port 63
Is tapered at a predetermined inclination angle, the suction port 63 and the bottom plate portion 64 of the chemical liquid tank 57 do not come into surface contact with each other, and the space between the suction port 63 and the bottom plate portion 64 of the chemical liquid tank 57 is not formed. Due to the space formed in, the chemical liquid is sufficiently sucked from the suction port 63, and the chemical liquid is sucked to the end. Further, since the dust removal net body 65 is disposed at each of the suction ports 63, it is possible to prevent the dust removal effect of the dust removal net body 65 from inhaling foreign matters such as dust mixed in the chemical liquid, and the dust etc. The foreign matter prevents the pump from being damaged and foreign matters such as dust from clogging the spray nozzles 22 and 32.

Next, in the above embodiment, the case where the chemical liquid tanks 57 are mounted on the left and right tank supports 46 with the chemical liquid injection ports 59 arranged on the front side opposite to the cylinder device 53 has been described. However, the present invention is not limited to this, and the chemical liquid tanks 57 may be mounted on the left and right tank supports 46 with the chemical liquid injection ports 59 arranged on the rear side of the cylinder device 53 side. Then, the left and right tank support bodies 46 are pivotally adjusted by the left and right cylinder devices 53 to be upright and tilted in the front-rear direction, so that the chemical solutions of the left and right chemical solution tanks 57 mounted on the left and right tank support bodies 46 are adjusted. Can be sucked to the end.

[0047]

According to the first aspect of the present invention, a tank support body for mounting and supporting a chemical liquid tank is rotatably axially mounted on a horizontal center axis of rotation provided on the main body of the working machine, and the work is carried out. The machine body is provided with a cylinder device for pivotally adjusting the tank support in a standing state and an inclined state about the rotation center axis, and the chemical solution is introduced from a chemical solution injection port of a chemical solution tank mounted on the tank support. Since the chemical liquid suction pipe is inserted in the tank, by supporting the tank support in the upright state with the cylinder device, the chemical liquid tank can be easily loaded and unloaded, and when the chemical liquid tank is mounted, etc. Since it is not necessary to tilt the chemical liquid tank, it is possible to prevent the chemical liquid from flowing out from the chemical liquid injection port.

Further, at the time of work, the chemical solution tank on the tank support is rotated by the cylinder device and supported in an inclined state toward one side, so that the chemical solution tank is provided between the chemical solution inlet and the surface of the chemical solution. A space having a predetermined size can be easily formed, and this space can prevent the chemical solution from overflowing from the chemical solution inlet.

Further, by rotating the chemical liquid tank on the tank support by the cylinder device and supporting the chemical liquid tank in an inclined state toward the other side, the chemical liquids whose remaining amount in the chemical liquid tank becomes small can be easily collected. You can concentrate and
This small amount of drug solution can be reliably sucked.

At this time, since the chemical solution tank can be tilted while being mounted on the tank support, it is not necessary to interrupt the work and manually invert the chemical solution tank to change the position of the chemical solution injection port, and a small quantity of chemical solution can be supplied. You can focus easily.

Therefore, the liquid medicine in the liquid medicine tank can be sufficiently sucked and sprayed by the spraying nozzle, and it is possible to provide an agricultural working machine which is easy to handle and is preferable in terms of work efficiency.

According to the second aspect of the invention, the working machine main body is
Each of the crushing blades has a vertical crushing blade for crushing the core soil and a rotatable leveling roller located behind the crushing blade to level the ground surface crushed by the crushing blade. By disposing the spray nozzle along the trailing edge of the rear part, it is possible to provide an agricultural working machine capable of simultaneously performing soil improvement work and soil disinfection work.

[Brief description of drawings]

FIG. 1 is a side view of an agricultural working machine showing an embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a cross-sectional view showing a standing state of a tank support having the chemical liquid tank mounted therein.

FIG. 4 is a cross-sectional view showing a rear tilted state of a tank support on which the chemical liquid tank is mounted.

FIG. 5 is a cross-sectional view showing a front tilted state of a tank support on which the chemical liquid tank is mounted.

FIG. 6 is an enlarged view of the suction port of the same chemical liquid suction pipe.

[Explanation of symbols]

 1 Working machine body 18 Crushing blade 22 Scattering nozzle 28 Crushing blade 32 Scattering nozzle 38 Leveling roller 45 Rotation center axis 46 Tank support 53 Cylinder device 57 Chemical solution tank 59 Chemical solution inlet 60 Pump 62 Chemical solution suction pipe

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshinobu Matsushita 5155 Shiokawa, Maruko-machi, Oka-gun, Nagano Matsuyama Co., Ltd. Yama Co., Ltd. (72) Inventor Tetsuji Yamamoto 5155 Shiokawa, Maruko-cho, Ogata-gun, Nagano Matsuyama Co., Ltd.

Claims (2)

[Claims] 1. A pump for supplying a chemical solution tank containing a disinfectant solution such as soil to the working machine main body, and supplying a chemical solution sucked from the chemical solution tank to a spraying nozzle for spraying the chemical solution into the working machine body. In the provided agricultural work machine, a rotation center shaft is horizontally provided on the work machine body, a tank support is rotatably attached to the rotation center shaft, and the rotation center shaft is attached to the work machine body. A cylinder device that rotatably and rotatably supports the tank support body in a standing state and an inclined state is provided as a center, and a chemical solution tank having a chemical solution injection port is mounted on the tank support body. An agricultural working machine characterized in that a chemical liquid suction pipe connected to the pump is inserted into the chemical liquid tank. 2. The working machine main body is a vertical crushing blade for crushing core soil, and a rotatable leveling ground positioned behind the crushing blade to level the ground surface crushed by the crushing blade. The agricultural working machine according to claim 1, further comprising a roller, and a spraying nozzle arranged along a rear edge of the crushing blade.