JPH0998601A - Levee forming machine equipped with pretreating mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form a new levee stable in strength by certainly and efficiently repairing an old levee. SOLUTION: A drive shaft 10 is protrusively installed in a fixed holding material 9 fixed to a traveling machine. A movable holding material 11 is pivoted to the fixed holding material 9 so as to be movable around the shaft line of the drive shaft 10. To the movable holding material 11, a first working shaft 27 and a second working shaft 29 are arranged to form each vertex of a triangle with these working shafts 27 and 29 and the drive shaft 10. The working shafts 27 and 29 and the drive shaft are connected with a chain device. A rotary shaving blade 43 which shaves the upper part of an old levee 3 is fixed to the first working shaft 27. A soil heaping rotor 49 which feeds soil on the old levee is fixed on the second working shaft. By rotating the soil heaping rotor 49, heap up soil on the old levee is formed into the levee by a levee finishing device 67.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention, when repairing an old ridge and forming a new ridge, scrapes off the upper part of the old ridge and fills it with earth. The present invention relates to a ridge forming machine having a pretreatment mechanism for forming a ridge.

[0002]

2. Description of the Related Art When repairing an old ridge and forming a new ridge, the upper part of the old ridge that has been destroyed by weathering etc. is scraped off and earth is filled there, and the embankment is compacted by a ridge arranging machine. As a ridge forming machine having a pretreatment mechanism for forming a ridge, one disclosed in JP-A-60-98903 is proposed.

As shown in FIG. 10, this ridge forming machine is provided with a rotary rotor c which is built up on an old ridge b on a machine frame a connected to a tractor, and which is provided at a front position in the traveling direction of the rotary rotor. A rotary cutting blade d for scraping off the upper part of the ridge is provided. The rotation direction g of the rotary rotor b is set so as to cut into the ridge e of the old ridge and the inner portion f of the old ridge from the rice field side toward the old ridge side. It is considered that the reason why the rotation direction was set in this manner was to enable the soil to be scraped directly onto the excavated old ridge in a short distance. Further, the rotary cutting blade is configured to be adjustable up and down by an adjusting device h so that the cutting depth can be appropriately selected by adjusting the relative position between the upper surface of the ridge and the cutting blade.

[0004]

However, the ridge forming machine having the above-mentioned structure has the following problems. Since the rotation direction of the rotating rotor was set so that it cuts from the rice field side toward the old ridge side, the rotating rotor should scrape the soil upward from the hem of the old ridge that is tightly tightened. Becomes Therefore, a large load is applied to the soil scraping by the rotary rotor, and it is necessary to configure the drive device to have a large horsepower.

Further, since the rotation direction of the rotary rotor is set in this way, the soil on the ridge side, which is often in a dry and hard state, is mainly supplied onto the old ridge. Moreover, since the soil of the old ridge is scraped upward from the hem, the soil is easily scraped in a large solid state.
Because of this, it is difficult to compact the embankment when arranging,
There was a problem that rough ridges with rough grain and unstable strength were easily formed.

In the ridge forming machine, the rotary cutting blade is configured to be vertically movable. Therefore, when the upper surface of the old ridge is low, the rotary cutting blade may be lowered to scrape off the upper portion of the old ridge. It has the advantage that it can. However, when cutting is performed by lowering the rotary cutting blade in this way, it is necessary to increase the amount of earth fill to that portion by the amount corresponding to the reduction. However, in the conventional ridge forming machine, even if the rotary cutting blade is lowered, the rotary rotor is not automatically lowered to increase the amount of soil scraped. Therefore, there is a problem in that the amount of embankment tends to be insufficient and it is difficult to form uniformly compacted and strong ridges.

In this case, it is possible to lower the depth of the rotary rotor to deepen the cutting depth of the rotary rotor. However, in this case, the rotary cutting blade is also lowered more than necessary at the same time, so that the rotary cutting blade is It is necessary to readjust the vertical position,
The workability of arranging will be significantly deteriorated. Further, since the rotating rotor is lowered, the ridge portion is abnormally deeply shaved off, which causes a disadvantage that the backfilling of the portion needs to be repaired.

Further, the rotation direction of the rotating rotor is
Since it was set to cut from the side of the rice field toward the inner part of the old ridge, when it was rotated, the soil scraped up would scatter to the adjacent rice field, and the soil scraped up would be cleaned. Therefore, it cannot be used effectively. Therefore, it is necessary to specially dispose the soil receiving plate k as shown in FIG. 9 for preventing the scattering of soil.

Further, since the rotating direction of the rotating rotor is set in this way, when the tire of the tractor travels in a portion close to the old ridge hem, the rotating rotor is
It will scrape up the soil on the rice field that is stepped on by the tires. Particularly in the case of arranging wetlands, as shown by the alternate long and short dash line in FIG. 10, the running portion of the tire is often deeply depressed by 20 cm to 30 cm. In this case, no matter how the rotating rotor c is lowered, it becomes difficult for the blade edge to contact the bottom surface n of the recessed portion, and it is practically impossible to scrape the soil by the rotating rotor, and it is impossible to arrange the soil. Invited. As described above, when the conventional ridge forming machine is used, it is possible to deal with the adjustment of dry fields, but it is not necessary for the adjustment of wet fields (the dry fields easily become wet due to rainfall after plowing). I couldn't handle it.

It is an object of the present invention to provide a ridge forming machine having a pretreatment mechanism capable of solving all the above problems of the conventional ridge forming machine.

[0011]

To solve the above problems, the present invention employs the following means. That is, a ridge forming machine equipped with the pretreatment mechanism according to the present invention (hereinafter referred to as a ridge forming machine)
Is a ridge forming machine equipped with a pretreatment mechanism attached to a traveling machine and forming a new ridge in the traveling direction while repairing an old ridge. The fixed holding member fixed to the mounting portion of the traveling machine is provided with a drive shaft projecting forward or backward in the traveling direction of the traveling machine, and the movable holding member is attached to the fixed holding member by the driving means. A first working shaft and a second working shaft which are rotatably pivoted about an axis of the shaft and which are parallel to the drive shaft are formed on the movable holding member, and these shafts form respective vertices of a triangle. The first working shaft and the second working shaft are connected to the drive shaft via a transmission element. The first working shaft is fixedly provided with a rotary cutting blade that scrapes off the upper part of the old ridge, while the second working shaft is provided with at least the soil of the rice field part in order to supply the soil on the old ridge. Scraping up (sometimes scraping only the soil on the rice field surface without scraping the soil on the inside of the old ridge) is fixed, and the earth-filling rotor is fixed. Due to the rotation of the first work shaft and the second work shaft, the earth-filling rotor rotates so as to cut into the paddy field in a direction away from the hem of the old ridge, and the rotary cutting blade moves outside the old ridge. It is characterized in that it does not rotate so as to scrape away the old ridge from the inside to the inside (field side), and that the embankment on the old ridge is compacted by a ridge arranging machine to form the ridge.

A more preferable aspect of the ridge forming machine according to the present invention is that the fixing and holding member fixed to the mounting portion of the traveling machine comprises:
A drive shaft protruding forward or rearward in the traveling direction of the traveling machine is provided, and a movable holding member is pivotally attached to the fixed holding member so as to be rotatable around the axis of the drive shaft, and the movable holding member is also supported. A first working shaft and a second working shaft which are parallel to the drive shaft are arranged on the member so that these shafts form respective vertices of a triangle, and the first working shaft and the second working shaft are arranged. The working shaft is connected to the drive shaft via a transmission element. And the first
The working shaft of is fixedly equipped with a rotary cutting blade that sequentially grinds the upper part of the old ridge and the upper part of the inner part of the old ridge, while the second working shaft is used to supply soil on the old ridge. The first work shaft and the second work through a conductive element, which is fixedly provided with an embankment rotor for cutting the soil by cutting into the inner part of the old ridge and the ridge, and rotating the drive shaft. By the rotation of the shaft, the earth-filling rotor does not rotate so as to cut into the rice field from the inner side of the old ridge through its hem, and the rotary cutting blade moves from the outer side of the old ridge to the inner side (field side). It is characterized in that the old ridges are not scraped away, and the embankments on the old ridges are compacted by a ridger to form ridges.

A more preferable aspect of the ridge forming machine according to the present invention is that the fixing and holding member fixed to the mounting portion of the traveling machine comprises:
A drive shaft protruding forward or rearward in the traveling direction of the traveling machine is provided, and a movable holding member is pivotally attached to the fixed holding member so as to be rotatable around the axis of the drive shaft, and the movable holding member is also supported. A first working shaft and a second working shaft which are parallel to the drive shaft are arranged on the member so that these shafts form respective vertices of a triangle, and the first working shaft and the second working shaft are arranged. The working shaft is connected to the drive shaft via a transmission element. And the first
The working shaft of is fixedly equipped with a rotary cutting blade that sequentially grinds the upper part of the old ridge and the upper part of the inner part of the old ridge, while the second working shaft is used to supply soil on the old ridge. The first work shaft and the second work through a conductive element, which is fixedly provided with an embankment rotor for cutting the soil by cutting into the inner part of the old ridge and the ridge, and rotating the drive shaft. By the rotation of the shaft, the earth-filling rotor does not rotate so as to cut into the rice field from the inner side of the old ridge through its hem, and the rotary cutting blade moves from the outer side of the old ridge to the inner side (field side). The old ridges are not scraped away, and a guide cover is arranged above the earth-filling rotor and above the ridges, and the soil scraped up by the earth-filling rotor is guided by the guide cover to fill the old ridges. Nothing is done, and the embankment on the old ridge is compacted by the ridger. It is characterized in that to form the.

In each of the ridge forming machines, the conduction elements are a sprocket fixed to the drive shaft, a sprocket fixed to the first output shaft, and a sprocket fixed to the second output shaft. , And a chain wound around these sprockets. The transmission element may be composed of other known means such as a gear device. Further, it is preferable that the surface of the movable holding member on the side facing the ridge is recessed in order to prevent contact with the soil piled up on the old ridge.

In each of the ridge forming machines, the fixing and holding member is preferably configured to be vertically adjustable so that the relative position between the upper surface of the ridge and the embankment rotor can be adjusted more easily.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be described below with reference to the drawings. 1 and 2, a ridge forming machine 1 equipped with a pretreatment mechanism according to the present invention is attached to a traveling machine as a tractor and forms a new ridge 5 while repairing an old ridge 3 in its traveling direction. It has a pretreatment mechanism 6.

As shown in FIGS. 1 to 3, the pretreatment mechanism 6 has a fixed holding member 9 fixed to a mounting portion 7 of the traveling machine, and a drive shaft projecting forward in the traveling direction of the traveling machine. 10 is provided, and the movable holding member 11 is attached to the fixed holding member 9.
Is pivotally attached so as to be rotatable around the axis of the drive shaft 10.

The fixed holding member 9 is formed, for example, as a cubic box, and the drive shaft 10 is supported by bearings 12 and 13 provided on front and rear surface portions of the fixed holding member 9. Then, as shown in FIGS. 2 and 4, the drive shaft 10
A bevel gear 15 is fixed in the fixed holding member 9. The drive shaft 10 is provided on the left and right of the fixed holding member 9.
The input shaft 16 and the leveling drive shaft 17 are arranged so that their axes coincide with each other so as to be orthogonal to, and are supported by bearings 19 and 20, respectively. Further, bevel gears 21 and 22 fixedly mounted on the input shaft 16 and the ridged drive shaft 17 are engaged with the bevel gears 15 of the drive shafts, respectively, and the drive shaft 10 and the ridged drive shaft are rotated as the input shaft 16 rotates. 17 is configured to rotate.

The movable holding member 11 has a flat box-like shape of a substantially equilateral triangle when viewed from the front and back sides, and is mounted on the bearing 12 of the drive shaft in the turning cylinder portion 23 provided on the back side of the upper apex portion thereof. The drive shaft 1 is rotatably fitted to the drive shaft 1.
0 is supported by a bearing 26 on the surface side of the apex portion, and the movable holding member 11 is rotatable about the axis of the drive shaft 10. The rotating operation of the movable holding member 11 can be performed by, for example, a hydraulic device (not shown). Further, the first working shaft 27 and the second working shaft 2 are provided at apexes forming both ends of the bottom of the movable holding member 11.
9 denotes bearings 30 and 3 on the front and back surfaces of the movable holding member 11.
It is supported by 1, 32, and 33 and is projected forward in parallel with the drive shaft 10. And the movable holding member 1
In 1, the drive shaft 10 and the first working shaft 27,
The second working shaft 29 has sprockets 35, 35,
35 is fixed, and a chain 36 is wound around these three sprockets (FIG. 4). Note that reference numeral 37
Is a chain sprocket. In this embodiment, as shown in FIGS. 3 and 5, the movable holding member 11
Of the movable holding member 1 by recessing the surface 39 on the side facing the ridge.
It prevents the contact between 1 and the soil on the old ridge.

The rotation directions F1 and F2 of the drive shaft 10, the first work shaft 27 and the second work shaft 29 are the same (counterclockwise in FIG. 5). Then, as shown in FIG. 1 and FIG. 5, at the tip side portion of the first working shaft 27, which is located on the left side of the drive shaft as viewed from the front side and projects relatively long forward, as shown in FIGS. A rotary cutting blade 4 having a plurality of claw-shaped cutting blades 42 circumferentially scraping off the entire upper portion 40 and the upper portion 41 of the inner portion of the old ridge.
3 is fixed. As shown in FIG. 5, the rotary cutting blade 43 scrapes the old ridge 3 in an arc shape from its outer side to its inner side (field side) as the first work shaft 27 rotates (reference numerals 45 and 46). ) As shown in FIG.

Further, at the tip side portion of the second working shaft 29 which is located on the right side of the drive shaft and projects relatively shortly, in order to supply the soil on the old ridge, the inner portion and the ridge of the old ridge are provided. The earth-filling rotor 49 is fixedly provided with a plurality of nail-shaped scraping blades 47 that are scraped off. This earth-filled rotor 49
With the rotation of the drive shaft 10, as shown in FIG. 5, rotation F2 is performed so as to cut into the rice field 52 from the inner side portion 50 of the old ridge through the hem portion 51 thereof. The soil scraped up by the rotation of the earth-filling rotor 49 is guided by the guide cover 53 arranged above the earth-filling rotor and above the old ridge, and is supplied to the cut-out recess 55 of the old ridge.

Further, in FIGS. 1 to 3, reference numeral 56 is a casing for adjusting ridges extending rearward in the traveling direction of the traveling machine and having an oval shape when viewed from the front and back sides, and a small diameter base end side portion 57 thereof.
Is rotatably attached to the fixed holding member 9 and is rotatably fitted to the bearing 20 of the ridge drive shaft 17, and the ridge drive is provided on the tip side portion of the casing 56. In parallel with the shaft 17, the arranging work shaft 59 is provided with the bearing 6
It is supported by 0 and 61. In the casing 56, the sprocket wheels 62 and 62 are fixedly mounted on the ridge drive shaft 17 and the ridge operation shaft 59, respectively, and the chain 65 is wound around both sprocket wheels. As the input shaft 16 rotates, the sprocket wheels are rotated. The arranging work shaft 59 rotates via 62, 62 and the chain 65. As shown in FIGS. 1 and 2, a rotary type ridger 67 is fixedly mounted on the ridge working shaft 59 to firmly compact the embankment 66 supplied on the old ridge into a kneaded state. . The ridger 67 has a cylindrical portion 69.
An inner rotary plate 70 and a outer rotary plate 71 each having a conical surface are fixed to the inner and outer ends thereof with their axes common. The ridge trim casing 56 is appropriately rotated according to the ridge height to be formed by the rotation operation of a screw type rotary operation tool (not shown), and is held in that state.

Next, the procedure for arranging a wetland with the ridge forming machine having the above structure will be described. FIG. 5 shows that the movable holding member 11 is set in a required rotating state according to the height of the upper surface of the old ridge, and is fixed in that state, and the rotary cutting blade 43 and the earth embossing rotor 49 rotate counterclockwise. It shows how they are doing. In this figure, the tire of the tractor (traveling machine) travels in a portion close to the old ridge hem, and a recess 72 is formed at the ridge. By the rotation of the rotary cutting blade 43, the entire upper part 40 of the old ridge and the upper part 41 of the inner part of the old ridge are scraped off in series. By the rotation of the earth embankment rotor 49, the soil of the old ridge is scraped off from the inner side of the old ridge toward the ridge while being finely crushed by the left rotation portion 49a (reference numeral 7).
3,74), the finely crushed moist rice field soil
It is scraped up by the right rotating portion 49b, guided by the guide cover 53, and the embankment 66 (FIG. 1, FIG.
7).

FIG. 6 shows a case where the wetland condition is stronger and a deeper dent 72 is formed on the ridge due to the running of the tire of the tractor (traveling machine). In the case shown in FIG.
Since the depression is relatively shallow, the earth of the bottom portion 72a of the depression can be scraped up by the rotation of the earth embossing rotor. However, when such a deep depression is formed, the earth embossing rotor 49 is used in the depression. You will not be able to scrape the soil. Therefore, the movable holding member 11 is rotated counterclockwise from the state shown in FIG. 5 by a required angle so that the soil 72 can be scraped up more efficiently by avoiding the depression 72 as much as possible, and the movable holding member is held in that state. The member 11 is fixed in position. In order to clarify the difference between the locus of the earth-filling rotor when the movable holding member 11 is rotated in this manner and the locus of the earth-filling rotor 49 shown in FIG. 5, in FIG. 6, in the case of FIG. The locus is shown by a dashed line. As a result, the amount of cutting by the rotary cutting blade 43 increases, but the right-side rotating portion 49 of the earth-filling rotor rotated counterclockwise.
Since the amount of scraping by b can be increased (the amount of soil in the part surrounded by the solid line and the alternate long and short dash increases), the required amount of scraping can be secured. Incidentally, in this case, if the movable holding member 11 is not rotated, the state shown in FIG. 7 is produced, and the right side rotating portion 49b of the earth-filling rotor is cut off, and the required amount of scraping cannot be secured. Becomes

In the present embodiment, it is preferable that the fixing and holding member is vertically adjustable so that the relative position between the upper surface of the ridge and the embankment rotor can be adjusted more easily.

After the soil is supplied to the old ridges in this way in a raised state, as shown in FIG.
The embankment is compacted into a kneaded state by the rotation of
The ridge 5 shown in is formed.

FIG. 9 shows that when the upper part of the old ridge 3 is scraped off by the rotary cutting blade, the outer part of the old ridge 3 is left (reference numeral 7).
5 shows the case of scraping (reference numeral 76).

[0028]

The present invention has the following excellent effects. According to the present invention, since the movable holding member is pivotally attached to the fixed holding member so as to be rotatable about the axis of the drive shaft, the following items can be obtained not only in the dry field but also in the wet field. For the reason, the advantage that can be surely and easily performed is remarkable. That is,
When the tire of the traveling machine runs near the hem of the old ridge, in a wetland, 20c is applied to the running part of the tire.
Although a depression with a depth of m to 30 cm is often generated, the movable holding member is rotated by a required angle to separate the earth-filling rotor from the ridge hem, thereby avoiding the depressed rice field portion as much as possible. This is because it becomes possible to scrape up the soil on the side of the other side, and therefore, the amount of soil required for arranging can be supplied onto the old ridge.

In the present invention, since the rotation direction of the embankment rotor is set so as to cut into the rice field in the direction away from the hem of the old ridge,
Even when scraping up the soil while scraping the inner part of the old ridge, it is easy to cut from the inner part with relatively low hardness.
Therefore, the scraping can be performed in a state where the load is not so high. Therefore, it is not necessary to configure the drive device to have a large horsepower as in the conventional ridge forming machine described above.

Further, in the present invention, since the rotation direction of the earth-filling rotor is set so as to cut into the rice field in the direction away from the hem of the old ridge, the soil on the soft rice field, which is moist and soft, is mainly used. , Can be supplied to old ridges in a finely crushed state. Therefore, it is possible to form a ridge with good tightening strength and stability by compaction by the ridge adjuster. When using a conventional ridge forming machine that rotates the rotating rotor in the opposite direction, as described above, in order to scrape the old ridge soil upward from the hem, the dry and hard old ridge soil is scraped up. Is easily scraped up in a large clumped state, it is difficult to compact the embankment during leveling, and there is a problem that rough ridges with rough grain and strength are easily formed, but the present invention has a great advantage of being able to solve this. have.

Further, in the present invention, the rotation direction of the earth-filling rotor is set so as to cut into the rice field in the direction away from the hem of the old ridge, and the rotation direction of the rotary cutting blade is set to , It is set to scrape the old ridge from the outside of the old ridge toward the inside (field side). Therefore, when it is rotated, there is no inconvenience that the scraped soil is scattered to the adjacent fields, and the scraped soil is trimmed without the need for a special soil backing plate as in the conventional ridge forming machine. Can be effectively utilized for.

[Brief description of drawings]

FIG. 1 is a perspective view illustrating a ridge forming machine.

FIG. 2 is a plan view thereof.

FIG. 3 is a perspective view illustrating a positional relationship among a fixed holding member, a movable holding member, and a trimming casing.

FIG. 4 is a perspective view illustrating a conduction mechanism of a ridge forming machine.

FIG. 5 is a side view for explaining the operation of the rotary cutting blade and the embankment rotor.

FIG. 6 is a side view for explaining the operation of the rotary cutting blade and the earth-filling rotor.

FIG. 7 is a cross-sectional view illustrating a problem when the movable holding member is not rotated.

FIG. 8 is an explanatory diagram for explaining the arranging function of the arranging device.

FIG. 9 is a cross-sectional view showing another scraped state of the old ridge.

FIG. 10 is an explanatory diagram illustrating a conventional ridge forming machine.

[Explanation of symbols]

 1 Ridge Forming Machine 3 Old Ridge 5 Ridge 6 Pretreatment Mechanism 9 Fixed Holding Member 10 Drive Shaft 11 Movable Holding Member 27 First Working Axis 29 Second Working Axis 43 Rotating Cutting Blade 49 Earth-Roller 53 Guide Cover 67 67 Adjusting Machine

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[Procedure amendment]

[Submission date] February 15, 1996

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 4

[Correction method] Change

[Correction contents]

[Procedure amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0003

[Correction method] Change

[Correction contents]

This ridge forming machine, as shown in FIG.
The machine frame a connected to the tractor is provided with a rotary rotor c for embedding on the old ridge b, and a rotary cutting blade d for shaving the upper part of the old ridge is provided at a front position in the traveling direction of the rotary rotor. . The rotation direction g of the rotary rotor c is set so as to cut into the ridge e of the old ridge and the inner part f of the old ridge from the rice field side toward the old ridge side. It is considered that the reason why the rotation direction was set in this manner was to enable the soil to be scraped directly onto the excavated old ridge in a short distance. Further, the rotary cutting blade is configured to be adjustable up and down by an adjusting device h so that the cutting depth can be appropriately selected by adjusting the relative position between the upper surface of the ridge and the cutting blade.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0014

[Correction method] Change

[Correction contents]

In each of the ridge forming machines, its conduction element is fixed to a sprocket fixed to a drive shaft, a sprocket fixed to a first working shaft , and a second working shaft . It is preferable that the sprocket and the chain wound around these sprockets be used. The transmission element may be composed of other known means such as a gear device. Further, it is preferable that the surface of the movable holding member on the side facing the ridge is recessed in order to prevent contact with the soil piled up on the old ridge.

Claims (6)

[Claims] 1. A ridge forming machine having a pretreatment mechanism, which is attached to a traveling machine and which forms a new ridge while restoring an old ridge in a traveling direction of the traveling machine, the ridge forming machine being fixed to a mounting portion of the traveling machine. To the fixed holding member
A drive shaft protruding forward or rearward in the traveling direction of the traveling machine is provided, and a movable holding member is pivotally attached to the fixed holding member so as to be rotatable around the axis of the drive shaft, and the movable holding member is also supported. A first working shaft and a second working shaft which are parallel to the drive shaft are arranged on the member so that these shafts form respective vertices of a triangle, and the first working shaft and the second working shaft are arranged. A work shaft is connected to the drive shaft via a transmission element, and a rotary cutting blade for scraping off the upper portion of the old ridge is fixedly provided on the first work shaft, while a second work shaft is provided. In order to supply soil on the old ridge, an earth emplacement rotor for scraping up at least the soil of the rice field portion is fixed, and the first working shaft and the first working shaft and the By the rotation of the work shaft of No. 2, the earth-filling rotor cuts into the rice field in the direction away from the hem of the old ridge. Rotation, and the rotary cutting blade does not rotate so as to scrape the old ridge from the outside to the inside (field side) of the old ridge, and the embankment on the old ridge is compacted by a ridger. A ridge forming machine having a pretreatment mechanism characterized by forming a ridge. 2. A ridge forming machine having a pretreatment mechanism, which is attached to a traveling machine and forms new ridges in the traveling direction of the traveling machine while restoring old ridges, the ridge forming machine being fixed to a mounting portion of the traveling machine. To the fixed holding member
A drive shaft protruding forward or backward in the traveling direction of the traveling machine is provided, and a movable holding member is pivotally attached to the fixed holding member so as to be rotatable around the axis of the drive shaft, and the drive is also provided. A first working axis and a second working axis which are parallel to the axes are arranged so that these axes form respective vertices of a triangle, and the first working axis and the second working axis are connected to a transmission element. The first working shaft is fixedly provided with a rotary cutting blade for sequentially scraping the upper part of the old ridge and the upper part of the inner part of the old ridge, while the second working shaft is connected to the drive shaft. In order to supply the soil on the old ridge, the work shaft is fixedly provided with an earth-filling rotor that cuts into the inner part of the old ridge and the ridge to scrape up the soil, and the conduction element accompanying the rotation of the drive shaft. Rotation of the first work shaft and the second work shaft via the slab causes the earth-filling rotor to move from the inner side of the old ridge. None as rotated to enter cut into the paddy through the skirt portion, and the rotary cutting knife is, without such scraping old ridges inward (paddy side) from the outside of the old ridge,
A ridge forming machine equipped with a pretreatment mechanism, characterized in that the embankment on the old ridge is compacted by a ridge forming machine to form a ridge. 3. A ridge forming machine equipped with a pretreatment mechanism, which is attached to a traveling machine and forms a new ridge while repairing an old ridge in a traveling direction of the traveling machine, the ridge forming machine being fixed to a mounting portion of the traveling machine. To the fixed holding member
A drive shaft protruding forward or rearward in the traveling direction of the traveling machine is provided, and a movable holding member is pivotally attached to the fixed holding member so as to be rotatable around the axis of the drive shaft, and the movable holding member is also supported. A first working shaft and a second working shaft which are parallel to the drive shaft are arranged on the member so that these shafts form respective vertices of a triangle, and the first working shaft and the second working shaft are arranged. A working shaft is connected to the drive shaft via a transmission element, and a rotary cutting blade for sequentially scraping the upper part of the old ridge and the upper part of the inner part of the old ridge is fixed to the first working shaft. On the other hand, on the second work shaft, in order to supply the soil on the old ridge, an earth embankment rotor that is cut into the inside of the old ridge and scrapes up the soil by cutting along the ridge is fixed to rotate the drive shaft. With the rotation of the first working shaft and the second working shaft via the conductive element, It does not rotate so as to cut into the rice field from the inner side of the ridge through its hem, and the rotary cutting blade does not scrape the old ridge from the outside of the old ridge toward the inside (field side), or A guide cover is arranged over the earth-filling rotor and over the ridges so that the soil scraped up by the earth-filling rotor is guided by the guide cover to be embanked on the old ridge, or the embankment on the old ridge. A ridge forming machine equipped with a pretreatment mechanism, characterized in that the ridges are compacted by a ridge forming machine to form ridges. 4. A sprocket having a transmission element fixed to the drive shaft, and a sprocket fixed to the first output shaft.
The ridge forming machine having a pretreatment mechanism according to claim 1, 2 or 3, comprising a sprocket fixed to the second output shaft and a chain wound around these sprockets. 5. The surface of the movable holding member facing the ridge is recessed to prevent contact with the soil piled up on the old ridge. Ridge forming machine with a pre-treatment mechanism. 6. A ridge forming machine having a pretreatment mechanism according to claim 1, wherein the fixed holding member is vertically adjustable.