JP4371293B2 - Paddy grooving machine - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a rice paddle grooving machine for forming a drainage ditch in a farm field for paddy rice drying in paddy rice cultivation management work.
[0002]
[Prior art]
In paddy rice making, drainage trenches with appropriate width and depth are formed between rice strips by paddy grooving machine, and work is carried out for drying rice paddies. As a conventional paddy grooving machine, a machine that advances a grooving plate made of a triangular steel plate while submerging in cultivated soil and pushes the cultivated soil left and right to form drainage grooves has become widespread. There is also a proposal of a grooving machine for advancing a rotating body driven by an engine (Japanese Patent Laid-Open No. 7-264902).
[0003]
[Problems to be solved by the invention]
However, in the conventional paddy grooving machine, the raised portions of the digged soil are formed on both sides of the formed drainage trench, preventing the water in the field from flowing into the drainage trench, and the cultivated soil is too soft In the drainage groove formed by pushing, the soil pushed away after the machine passes will slip and be buried. Moreover, since the drainage grooves are not sufficiently formed, for example, the cultivated soil is hard and the drainage grooves are too shallow, the middle drying operation is made insufficient.
[0004]
In the case of a rotating body, the rotation axis is a horizontal axis in the traveling direction, and a blade is provided on the rotating shaft, but the drainage groove formed by the rotation has an arc cross section, and the groove bottom surface is wide. Because of this lack of fluidity, the fluidity of water is poor, and soil is raised on one side, and a raised portion of the soil is formed only on one side of the drainage ditch, making it difficult to obtain uniform drainage. There was a problem that the groove was easily buried.
[0005]
In order to eliminate the above-mentioned adverse effects, the present invention has no soil swell that impedes drainage on both sides or one side of the drainage groove, and is not affected by the soil quality such as the softness of cultivated soil. An object of the present invention is to provide a paddy grooving machine capable of forming a drainage groove having a sufficient depth and width in a simple cross section.
[0006]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention provides a traveling wheel drive gear portion at the front end portion of a main drive shaft support pipe provided with a main drive shaft driven by an engine, and through the traveling wheel drive gear portion. In a paddy field powered vehicle equipped with a driving wheel to be driven, a rotating body drive gear portion is provided in the middle of the main drive shaft support pipe behind the traveling wheel, and the rotating body drive shaft is vertically suspended from the rotating body drive gear portion. The rotating body drive shaft is pivotally supported by a support frame in the middle, and a rotating body for coarse groove formation having a plurality of blades for cutting up the cultivated soil is attached to the lower end of the rotating body drive shaft . A diffusion prevention plate with blades that discharges the raised mud flow to the surroundings is attached to the upper end portion, respectively, and a shaping float that presses the side of the rough groove is suspended from the support frame behind the rotating body. The front end is fixed to the main drive shaft support tube. To constitute a paddy field for trench wall cutter having a operating handle which is.
[0007]
In addition, in the middle of the main drive shaft support pipe at the rear of the traveling wheel, two rotating body drive gear portions may be provided with an appropriate distance in the front and rear, so that the two rotating bodies can be mounted. .
[0008]
In addition, a pair of left and right groove cutting blades may be provided below the support frame between the traveling wheel and the rotating body.
[0009]
[Action]
According to the first aspect of the present invention, when a paddy field powered vehicle travels through a row of rice in a flooded field and the rotator rotates and enters the cultivated soil, the rotator on the vertical axis is likely to allow water to flow. An inverted trapezoidal drainage groove is formed. At this time, the cultivated soil is pulverized by the action of the blades attached to the rotating body, mixed and stirred with the paddy water, and then rises in a mud shape, but is received by the diffusion prevention plate above the rotation body, and the rotation of the diffusion blade below the diffusion prevention plate As a result, the mud flow is diffused over a wide area on the water surface of the field to form a drainage ditch.
[0010]
Further, the shaping float behind the rotating body enters a drainage groove formed by the rotating body, and the rotating body receives a downward force as a reaction of the rotating body (landing by excavation, diffusion transport). Buoyancy works to counteract the downward force of the rotating body, reducing the load on the engine. Further, the shaping float prevents the intrusion of mud flow into the drainage groove formed by the rotating body, presses and shapes the side surface and bottom surface of the drainage groove, and forms a stable drainage groove that does not easily collapse. In addition, it is preferable that the main body of this shaping float is manufactured hollow and lightweight.
[0011]
According to the second aspect of the present invention, the drainage groove is formed by the two rotating bodies arranged at an appropriate interval in the middle portion of the main drive shaft support pipe behind the traveling wheel. That is, a part of the drainage groove is formed by the front rotating body (first rotating body), and further, a part of the front rotating body (first rotating body) is formed by the rear rotating body (second rotating body). By entering the formed drainage groove and completing the drainage groove, a drainage groove having a more sufficient depth and width can be formed.
[0012]
According to the invention of claim 3, the drainage groove side wall is smoothed by entering the cultivated soil and forming a cut by the groove cutting blades vertically suspended from the support frame behind the running wheel, and Excavation for groove formation by a rotating body is facilitated.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0014]
1 to 4 illustrate the first embodiment. As shown in FIG. 1, the paddle grooving machine includes an engine 1, a traveling wheel 3, a main drive shaft support tube 2, a traveling wheel drive gear section. 4 and a power traveling vehicle for paddy fields provided with an operation handle 5. The traveling wheel 3 from the front in the forward direction, the rotating body 30 at the rear, and the shaping float 70 at the rear are arranged in series. It is. The power from the engine 1 is transmitted to the rotating body drive gear unit 10 and further to the traveling wheel drive gear unit 4 via a main drive shaft (not shown) provided in the main drive shaft support pipe 2. Accordingly, when power is transmitted from the traveling wheel drive gear section 4 to the traveling wheel 3, the paddy grooving machine travels between the rice strips in a flooded field.
[0015]
In addition, the power of the engine 1 is transmitted to the rotary body drive shaft 20 via the rotary body drive gear unit 10, whereby the rotary body 30 rotates. The rotary body drive shaft 20 is suspended downward from the rotary body drive gear section 10 in the middle of the main drive shaft support tube 2, is pivotally supported by the support frame 6 in the middle, and the rotary body 30 is provided at the lower end. Is screwed. The rotating body 30 is provided with a plurality of blades 32 and 32 projecting from a shaft-like boss body 31 (FIG. 2). The blade shape is substantially semicircular, and the blade width gradually increases from the front to the rear in the rotational direction. Is enlarged, and a cutting edge is provided at the outer peripheral tip. The blades 32 are suspended from the boss body 31 so as to incline from the front to the rear in the rotational direction and from the top to the bottom. Furthermore, the maximum blade width of each blade 32, 32 is reduced according to the lower blade from the upper blade. When the rotator 30 rotates and enters the field cultivated soil, by the action of the blades 32 and 32, the cultivated soil and the residue in the cultivated soil are cut outward from the center of the rotator 30 and are subdivided and stirred. Then, it becomes mud in a substantially inverted trapezoidal shape 102 (the dashed line in FIG. 4). Furthermore, the cultivated soil that has become mud due to the inclination of the blades 32, 32 rises as a mud flow.
[0016]
A substantially dish-shaped scattering prevention plate 33 having a peripheral edge gradually expanding and inclined downward is attached to the upper end of the rotating body 30. Further, triangular diffusion blades 34 and 34 having sides of the lower surface of the scattering prevention plate 33 and the axial direction of the boss body 31 are suspended between the lower surface of the scattering prevention plate 33 and the axial direction of the boss body 31. The raised mud flow is received by the anti-scattering plate 33 at the upper end of the rotator 30 and simultaneously diffuses and moves along the lower surface of the anti-scattering plate 33 by the rotational force of the diffusion blades 34 and 34. Then, the mud flow is corrected at the peripheral edge of the scattering prevention plate 33 by the downward inclination of the scattering prevention plate 33 and is diffused and transported without being jetted above the field water surface. As a result, mud does not adhere to the rice.
[0017]
Regarding the attachment of the blades 32, 32 to the boss body 31, various types of rotating bodies can be easily manufactured by changing the shape, the attachment position, and the number of attachments. Furthermore, a screw part (male screw) 35 is projected from the upper end of the rotating body 30, and the rotating body 30 is detachably screwed to the lower end part (female screw) of the rotating body drive shaft 20 in this way. Therefore, it is possible to select and attach the most suitable rotating body to the soil quality of the cultivated soil by replacing various rotating bodies. Therefore, it is possible to easily form a drainage groove having a sufficient depth and width.
[0018]
The shaping float 71 has mounting rods 73, 73 penetrating through the mounting holes formed in the pair of front and rear shaping float mounting brackets 75, 75 at the rear of the support frame 6 behind the rotating body 30 (FIG. 3). The lower part is screwed and suspended. The mounting rods 73 and 73 are fixed to the front and rear end portions of the shaping float 71 in this way, but since there are a number of holes for screwing, the positions of the mounting holes must be changed. Thus, the height and inclination of the shaping float 71 can be adjusted.
[0019]
The shape of the shaping float 71 is a substantially cubic shape in which the side portion gradually widens rearward from the front end portion in plan view and the bottom portion gradually slopes down rearward from the front end portion (the maximum width of the shaping float 71 is the excavation width of the rotating body 30). And the shaping float 71 has a maximum depth slightly deeper than the excavation depth of the rotating body 30), and a mudflow shielding plate 72 is erected on the upper part of the front end. When the shaping float 71 enters the drainage groove formed by the rotating body 30 as described above, the side wall and the bottom surface of the drainage groove are pressed and shaped by the side part of the shaping float 71 and the bottom part of the shaping float 71. A drainage groove that does not easily collapse is formed (solid line in FIG. 4). Further, the mud flow is blocked by the mud flow shielding plate 72 to prevent the mud flow from entering the existing drainage grooves. Further, the shaping float 71 is made of a strong and lightweight synthetic resin having a hollow sealed structure inside. By setting the size so as to have an appropriate buoyancy, the buoyancy works so as to counteract the downward force caused by excavation of the rotating body 30, thereby reducing the load on the engine 1 and improving the maneuverability.
[0020]
The left and right support frames 6 and 6 have their front ends fixed to the left and right bearings of the traveling wheel 3 and extend rearward therefrom, and are connected by lateral members (not shown) at the midway and rear ends. It is a framework. The engine 1 is supported by the member 7 at the rear portions of the support frames 6 and 6. Further, the operation handle 5 has a front end portion fixed to the middle portion of the main drive shaft support tube 2, and extends to the rear while branching left and right, and is connected to each other at the rear to form a loop handle. . A throttle lever (not shown) is attached to the left and right rear portions of the handle 5, thereby adjusting the output of the engine 1.
[0021]
FIG. 4 is a cross-sectional view of a drainage groove formed by the grooving machine. 101 is an agricultural field, 102 is an excavation unit by the rotating body 30, and 103 is a press shaping unit by the shaping float unit 70.
[0022]
5 to 8 describe the second embodiment. As shown in the figure, the one having one rotating body in the first embodiment is assumed to have two rotating bodies in this case, and the other configurations are the same.
[0023]
Similar to the first embodiment described above, the rotary body drive shafts 21 and 22 are respectively suspended downward from the two rotary body drive gear portions 11 and 12 provided in the middle portion of the main drive shaft support tube 2. The intermediate support frame 6 is pivotally supported and penetrated, and the rotating bodies 60 and 50 are screwed to the lower end portions, respectively. That is, the two rotating bodies (the first rotating body 60 and the second rotating body 50) enter into the farmland while rotating by the power of the engine 1.
[0024]
In the first rotating body 60 on the front side, a plurality of substantially bowl-shaped blades 62 and 62 are attached to a boss body 61. This substantially bowl-shaped blade 62 is provided with a cutting edge 63 at the front end in the rotational direction, and each blade is reduced in diameter according to the lower blade rather than the upper blade. In addition, a screw portion 65 projects from the upper end portion of the boss body 61. When the first rotating body 60 enters the cultivated soil while rotating, the cultivated soil and the residues in the cultivated soil are crushed and cut into pieces by the rotation of the blades 62, 62, and stirred with the paddy water to become mud. And by the said 1st rotary body 60, a cultivated soil grinding cross section becomes a substantially inverted trapezoid shape in step shape (the dashed-dotted line of FIG. 8).
[0025]
In the second rotating body 50 on the rear side, a spiral blade 52 is attached to the boss body 51, and the blade width is increased as it proceeds from the lower part to the upper part. And the scattering prevention board 53 and the diffusion blades 54 and 54 are attached to the upper end part similarly to the rotary body of 1st Embodiment. Further, a screw portion 55 is projected from the upper end. When the second rotating body 50 enters the muddy soil made by the first rotating body 60 while rotating, the second rotating body 50 performs substantially the same function as the rotating body 30 of the first embodiment described above. Further, the stepped portion (the portion indicated by the alternate long and short dash line in FIG. 8) of the cross section formed by the first rotating body 60 is deleted.
[0026]
As described above, since the second embodiment has two rotating bodies, each rotating body can have a function-specific characteristic. That is, the first rotating body 60 has a function of exclusively pulverizing the cultivated soil to form a mud, and the second rotating body 50 has a function of exclusively pumping and diffusing the soil, so that the drainage ditch with a higher degree of completion can be obtained. Can be formed. In addition, since the two rotating bodies are detachably screwed, an optimum rotating body for the soil quality of the cultivated soil can be selected by variously combining various rotating bodies.
[0027]
FIG. 8 is an excavation cross-sectional view of a drain ditch formed according to the second embodiment. 111 is a field cultivated soil, 112 is a pulverizing part by the first rotating body 60, and a grounding part by the second rotating body 50, 113 is an excavating part by the second rotating body 50, 114 is a press by the shaping float part 70 It is a molding part.
[0028]
FIG. 9 shows a third embodiment. As shown in the figure, it is the same as in the first embodiment, but a pair of left and right groove cutting edge portions 80, 80 are suspended downward from the support frame 6 in the rear of the drive wheel 3 and in front of the rotating body 30. There is a difference.
[0029]
The shape of the groove cutting blades 81 and 81 is gradually curved from the front in the forward direction to the rear and from the upper part to the lower part, and a cutting edge is provided at the front end in the forward direction. Further, the separation distance between the left and right groove cutting edges 81, 81 is bent so as to gradually decrease and approach as it goes downward from the upper part of the groove cutting edge. The groove cutting blades 81 and 81 enter the cultivated soil from the rear of the driving wheel 3 to form a substantially inverted trapezoidal cut in a sectional view while cutting the residue in the cultivated soil. The substantially inverted trapezoidal cut is wider than the rotational width of the rotating body 30 and narrower than the generally inverted trapezoidal shape when viewed from the front of the shaping float 71. Further, since the groove cutting blades 81 and 81 are curved, the groove cutting blades 81 and 81 can easily enter the cultivated soil.
[0030]
When the rotating body 30 behind the groove cutting blades 81 and 81 enters the substantially inverted trapezoidal cut formed in the cultivated soil by the groove cutting blades 81 and 81, the cultivated soil is crushed with the cut as a boundary. Therefore, the formed drainage groove has a constant groove width and a smooth side wall.
[0031]
In addition, a square bar-shaped mounting rod 82 is welded to the upper end of each groove cutting blade 81. The mounting rod 82 is inserted into a mounting hole drilled in the groove cutting blade mounting bracket 83 and fixed by screws. . By adjusting the fixing position of the mounting rod 82 by loosening this screw, the depth of cut can be easily adjusted. Also, the support frame 6 has a large number of mounting holes 84, 84, which are penetrated through the holes drilled at both ends of the grooved blade mounting bracket 83 and fixed by screws. By changing the positions of the mounting holes 84, 84 of the frame 6, the distance between the groove cutting blades 81, 81 and the rotating body 30 that is optimal for the soil quality of the cultivated soil can be freely selected.
[0032]
11 and 12 illustrate the fourth embodiment. As shown in the figure, it is the same as in the case of the second embodiment, but the pair of left and right groove cutting edge portions 80, 80 are lowered below the support frame 6 behind the drive wheel 3 and in front of the first rotating body 60. It is suspended in the direction. The second rotating body 30 is different in that a rotating body having the same structure as that of the first embodiment is screwed.
[0033]
As described above, in the fourth embodiment, the drainage groove with a higher degree of completeness can be formed by including the groove cutting edge portion 80 and further including the two rotating bodies 60 and 30.
[0034]
FIG. 12 is an excavation cross-sectional view of a drain ditch formed according to the embodiment. 121 is agricultural field soil, 125 is a cutting part by groove cutting blades 81 and 81, 123 is a grinding part by the first rotating body 60 and excavation part by the second rotating body 30, and 124 is a press forming part by the shaping float part 70 is there.
[0035]
FIG. 13 shows a fifth embodiment. As shown in the figure, instead of the first rotator 60 and the second rotator 50 in the second embodiment, the rotators 30 and 30 of the first embodiment are mounted. This is the same as the embodiment. The difference in operation from the second embodiment described above is that the drainage groove formed by excavation and diffusion by the first rotating body 30 is further operated by the second rotating body 30 in the same manner as the first rotating body. As a result, the second rotating body 30 complements the unfinished portion of the first rotating body 30 to form a more complete drainage groove.
[0036]
14 to 16 show a sixth embodiment. In this case, the structure of the first rotating body 30 in the fifth embodiment is changed, and by rotating the first rotating body 40 by making the blade widths of the plurality of blades 42, 42 attached to the boss body the same. The width was the same as the width of the bottom surface of the drain. The scattering prevention plate 43 and the diffusion blades 44 and 44 were also reduced so as to have a diffusion amount corresponding to the excavation amount of the plurality of blades 42 and 42 attached to the boss body 41. Other configurations are the same as those of the fifth embodiment. The difference from the above-described fifth embodiment is that the first rotary body 40 forms a rectangular drainage groove when viewed from the front, and further the second rotary body 30 enters and the drainage groove has a substantially inverted trapezoidal shape when viewed from the front. Is to widen the width. That is, the portion to be excavated is shared by the two rotating bodies 40 and 30 to form drainage grooves.
[0037]
FIG. 16 is an excavation cross-sectional view of a drain ditch formed according to the sixth embodiment. 131 is an agricultural field, 132 is an excavating part by the first rotating body 40, 133 is an excavating part by the second rotating body 30, and 134 is a press forming part by the shaping float part 70.
[0038]
Providing a paddy grooving machine having various characteristics according to the presence or absence of grooving blades, the number of rotating bodies (one or two), or the structure of the rotator as in the various embodiments. I was able to.
[0039]
The specific structure of the rotator (including the first rotator and the second rotator) is not particularly limited as long as it exhibits the action required for each rotator in the present invention. The specific structure of the groove cutting blade is the same as that of the rotating body.
[0040]
【The invention's effect】
As described above, according to the paddy grooving machine of the present invention, not only can the drainage groove be formed in the ideal trapezoidal cross section by the rotating body of the vertical axis, but also the mud flow generated by the rotating body can be extensively used. Since it spreads uniformly and no raised portion is generated, it is possible to secure a good drainage property in the field, and there is an excellent effect that it is possible to form a drainage groove that is not easily collapsed by adding press molding with a shaping float.
[0041]
In addition, it is easy to attach and detach the rotating body and the groove cutting blade, and it is possible to select the rotating body most suitable for the soil quality of the cultivated soil for each field, and the groove cutting blade can be easily attached and detached. A continuous drainage groove having a sufficient depth and width can be formed without being influenced by the soil quality.
[Brief description of the drawings]
FIG. 1 is a side view of a paddy grooving machine showing a first embodiment.
FIG. 2 is a perspective view of a rotating body in the paddy grooving machine.
FIG. 3 is a perspective view showing a mounting state of the shaping float in the paddy grooving machine.
FIG. 4 is a sectional view of a drain groove formed by the paddy grooving machine.
FIG. 5 is a side view of a paddy grooving machine showing a second embodiment.
FIG. 6 is a perspective view of a first rotating body in the paddy grooving machine.
FIG. 7 is a perspective view of a second rotating body in the paddy grooving machine.
FIG. 8 is a sectional view of a drain groove formed by the paddy grooving machine.
FIG. 9 is a side view of a paddy grooving machine showing a third embodiment.
FIG. 10 is a perspective view of a grooving blade in the paddy grooving machine.
FIG. 11 is a side view of a paddy grooving machine showing a fourth embodiment.
FIG. 12 is a cross-sectional view of a drain groove formed by the paddy grooving machine.
FIG. 13 is a side view of a paddy grooving machine showing a fifth embodiment.
FIG. 14 is a side view of a paddy grooving machine showing a sixth embodiment.
FIG. 15 is a perspective view of a first rotating body in the paddy grooving machine.
FIG. 16 is a cross-sectional view of a drain groove formed by the paddy grooving machine.
[Explanation of symbols]
1 Engine 2 Main drive shaft support tube 3 Traveling wheel 4 Traveling wheel drive gear 5 Operation handle
10 Rotating body drive gear
11 First rotating body drive gear
12 Second rotating body drive gear
30, 40, 50, 60 Rotating body
70 Shaping float
80 Groove cutting edge

Claims (3)

In a paddy field powered traveling vehicle provided with a traveling wheel drive gear portion at a front end portion of a main drive shaft support tube provided inside a main drive shaft driven by an engine and provided with traveling wheels driven via the traveling wheel drive gear portion A rotating body drive gear portion is provided in the middle of the main drive shaft support pipe at the rear of the running wheel, and the rotating body drive shaft is suspended downward from the rotating body drive gear portion. A rotating body for rough formation of grooves having a plurality of blades for cutting up cultivated soil is attached to the lower end of the rotating body drive shaft, and the raised mud flow is discharged to the upper end of the rotating body. A diffusion prevention plate with blades is attached, and a shaping float that presses the side surface of the rough groove is suspended from the support frame behind the rotating body, and a front end is fixed to the main drive shaft support tube. Characterized by having an operating handle Paddy field for the trench wall cutter to be. Claims characterized in that two rotating body drive gear portions are provided in the middle of the main drive shaft support pipe at the rear of the traveling wheel, with two or more rotating body drive gear portions being provided at an appropriate distance in the front and rear directions. Item 1. A rice field grooving machine. 3. A paddy grooving machine according to claim 1, wherein a pair of left and right grooving blades are provided below the support frame between the running wheel and the rotating body.

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