JPH09215402A - Levee forming machine equipped with preprocessing mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To securely and efficiently restore an old levee irrelevantly to whether the field is well-drained paddy field or ill-drained paddy field. SOLUTION: The fitting part of a tractor is provided independently with a 1st fixed holding member 12 equipped with a 1st driving shaft 19 and a 2nd fixed holding member 13 equipped with a 2nd driving shaft 21. The 1st driving shaft 19 is provided with a 1st movable holding member 20 which has a 1st working shaft 51 rotatably on the axis of the driving shaft 19. The 2nd driving shaft 21 is provided with a 2nd movable holding member 22 which has a 2nd working shaft 62 rotatably on the axis of the driving shaft 21. Those working shafts 51 and 52 are coupled with the driving shafts 19 and 21 through a chain device. A rotary scraping-out edge 80 which scrapes out an old levee 3 is fixed to the 1st working shaft 51. A ground raising rotor 83 which supplies earth onto the old levee is fixed to the 2nd working shaft 6. The earth spread over the old levee by the rotation of the ground raising rotor 83 is prepared into a levee by a levee preparing machine 109.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method of repairing an old ridge and forming a new ridge by shaving the old ridge as required and filling it with soil. The present invention relates to a ridge forming machine having a pretreatment mechanism for forming ridges.

[0002]

2. Description of the Related Art When restoring an old ridge to form a new ridge, the upper part of the old ridge that has collapsed due to weathering, etc., is scraped off and filled with soil, and the embankment is compacted with a leveling machine. Japanese Unexamined Patent Publication No. 60-98903 discloses a ridge forming machine having a pretreatment mechanism for forming a ridge.

In this ridge forming machine, as shown in FIG. 16, a machine frame a connected to a tractor is provided with an earth embankment rotor c on the old embankment b, and the earth emplacement rotor c is installed in front of the earth emplacement rotor in the traveling direction. A rotary cutting blade d for scraping off the upper part of the ridge is provided. The rotation direction g of the embankment rotor c is set so as to cut from the rice field side toward the old ridge side into the ridge e of the old ridge and the inner part f of the old ridge. It is considered that the reason for setting the rotation direction in this way was to enable the soil to be directly scraped over the cut old ridge in a short distance. In addition, the rotary cutting blade is configured so that the vertical position can be adjusted by an adjusting device h in order to adjust the relative position between the upper surface of the ridge and the cutting blade so that the cutting depth can be appropriately selected. .

[0004]

However, the ridge forming machine having the above-described structure has the following problems. Since the rotation direction of the embankment rotor was set so that it cuts from the rice field side toward the old ridge side, the earth emplacement rotor should scrape the soil upward from the hem of the old ridge that is tightly tightened. Becomes For this reason, a large load is applied to the scraping of the soil by the soil filling rotor, and it is necessary to configure the driving device to have a large horsepower.

Since the rotation direction of the earth-filling rotor is set in this way, the soil on the ridge side, which is often in a dry and hard state, is 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. For this reason, there is a problem that it is difficult to compact the embankment at the time of arranging ridges, and it is easy to form ridges with rough grain and unstable strength.

In the ridge forming machine, the rotary cutting blade is configured to be movable up and down. Therefore, if the upper surface of the old ridge is low due to severe collapse due to weathering or the like, lower the rotary cutting blade. It has the advantage that the upper part of the old ridge can be scraped off. However, when the rotary shaving blade is lowered in this way to perform shaving, it is necessary to increase the amount of earth fill to that portion in order to form the required ridges. However, in the conventional ridge forming machine, even if the rotary cutting blade is lowered, the earth-filling rotor is not automatically lowered to increase the amount of soil scraped. For this reason, there is a problem that the embankment amount is likely to be insufficient, and it is difficult to form a uniformly compacted ridge.

Further, since the rotation direction of the earth-filling rotor is set as described above, when the tire of the tractor travels in a portion close to the old ridge hem, the earth-filling rotor is mounted on the rice paddle stepped on by the tire. It will scrape up some soil. In particular, in the case of arranging wetlands, as shown by the alternate long and short dash line in FIG.
Often, m is also deeply depressed. In this case, no matter how much the earth-filling 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 earth-filling rotor and the soil cannot be adjusted. 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.

An object of the present invention is to provide a ridge forming machine provided with a pre-processing mechanism, which can solve the above-mentioned problems of the conventional ridge forming machine at once.

[0009]

In order to solve the above problems, the present invention employs the following means. That is, a ridge forming machine provided with a 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, which is attached to the traveling machine and forms a new ridge while restoring the old ridges, and is fixed to the mounting portion of the traveling machine. A first fixed holding member and a second fixed holding member that are independently arranged are provided, and a first fixed holding member that projects toward the front or the rear in the traveling direction of the traveling machine is provided to the first fixed holding member. A drive shaft is provided, and a first movable holding member is provided on the first drive shaft so as to be rotatable about its axis, and a traveling direction of the traveling machine is provided on the second fixed holding member. A second drive shaft protruding forward or rearward is provided, and a second movable holding member is provided on the second drive shaft so as to be rotatable about its axis.

Further, the first movable holding member and the second movable holding member can be independently rotated, and these can be fixed in respective required rotating states, and the first movable holding member can be fixed. The holding member is provided with a first working shaft that is parallel to the first driving shaft with a required distance therebetween, and the first working shaft is connected to the first driving shaft via a transmission element. On the other hand, a second working shaft that is parallel to the second drive shaft is also disposed on the second movable holding member while being connected, and the second working shaft is connected to the second working shaft through a transmission element. It is connected to the drive shaft of.

The first working shaft is fixedly provided with a rotary cutting blade for cutting the old ridge as required, while the second working shaft is provided with soil on the old ridge cut by the rotary cutting blade. In order to supply the soil, at least the earth-filling rotor for scraping up the soil on the rice field portion is fixed, and the rotation of the first working shaft through the transmission element is accompanied by the rotation of the first drive shaft. The rotary shaving blade rotates so as to scrape off the old ridge from the outer side portion of the old ridge toward the inner side (field side), and the second through the conduction element accompanying the rotation of the second drive shaft. The rotation of the working shaft causes the earth-filling rotor to rotate so as to cut into the rice field in a direction away from the old ridge. Further, the present invention is characterized in that the embankment on the old ridge is compacted by a leveling machine to form a ridge.

In the ridge forming machine, it is preferable that the first fixed holding member and the second fixed holding member are arranged at required intervals on the left and right in a direction substantially orthogonal to the ridge.

In each of the ridge forming machines, a sprocket is fixedly mounted on a first working shaft, a sprocket is fixedly mounted on a first drive shaft, a chain is wound around the sprocket, and a second working is carried out. It is preferable that the sprocket is fixed to the shaft, the sprocket is fixed to the second drive shaft, and the chain is wound around the both sprockets.

In each of the ridge forming machines, a guide cover is arranged above the earth-filling rotor and above the old ridge, and the soil scraped up by the rotation of the earth-filling rotor is guided by the guide cover and supplied onto the old ridge. It is better to configure it.

In the upper part of the old ridge in the guide cover, a soil guide plate curved concavely toward the rear of the traveling direction of the traveling machine is provided so as not to collide with the rotary cutting blade, and is scraped up by the earth-filling rotor. It is preferable that the soil is guided by the soil guide plate (not all of the soil), discharged toward the rear in the traveling direction of the traveling machine, and dropped onto the old ridge.

Further, the guide cover is provided even when the rotating state of the second movable holding member is changed or when the soil quality is changed.
In order to enable the soil to be properly supplied onto the old ridges, it is desirable to be able to change the mounting state of the guide cover.

Further, in the ridge forming machine according to the present invention, it is preferable that the vertical position of the fixed holding member can be adjusted.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, a ridge forming machine 1 provided with a pretreatment mechanism according to the present invention includes a traveling machine 2 as a tractor.
And a pre-processing mechanism 6 for repairing the old ridge 3 and forming a new ridge 5 in the direction of travel.

As shown in FIGS. 1 and 2, the pretreatment mechanism 6 has a built-in conduction shaft 7 (FIG. 2) provided in the traveling machine 2 and extending in a direction substantially orthogonal to the ridges. A tubular body 9 is provided, and a right side mounting portion 10 and a left side mounting portion 11 are provided at the left and right ends of the tubular body 9, and the right side mounting portion 10 has a first mounting portion 10.
And a second fixing and holding member 13 on the left mounting portion 11. In the present embodiment, the tubular body 9 is supported by the left and right support arms 15 and 16 arranged at intervals and the central support arm 17 pivotally attached to the left mounting portion 11. It is attached to the traveling machine 2.

The first fixed holding member 12 is provided with a first drive shaft 19 projecting forward in the traveling direction of the traveling machine 2, and the first drive shaft 19 is used for scraping old ridges. The first movable holding member 20 concerned is attached to the first drive shaft 19
The first movable holding member 20 can be fixed to the first fixed holding member 12 in a required rotating state by being provided so as to be rotatable around the axis line of (shown by an arrow in FIG. 4). .
In addition, the second fixed holding member 13 is provided with a second drive shaft 21 that projects forward in the traveling direction of the traveling machine 2, and the second drive shaft 21 is used to move the carved old ridge to the upper side. The second movable holding member 22 related to the soil supply is provided so as to be rotatable about the axis of the second drive shaft 21 (indicated by an arrow in FIG. 4), and the second movable holding member 22 is provided. Can be fixed to the second fixed holding member 13 in a required rotating state.

The first fixed holding member 12 is formed, for example, as a cubic box, and the first drive shaft 1
Reference numeral 9 denotes a bearing 2 provided on the front and rear surfaces of the fixed holding member 12.
It is supported by 3, 25 and is projected forward in the traveling direction of the traveling machine 2. As shown in FIGS. 2 and 5, a bevel gear 26 is fixed to the drive shaft 19 in the fixed holding member 12. Further, on the left and right sides of the fixed holding member 12, the transmission shaft 7 and the uneven drive shaft 27 are arranged so as to be orthogonal to the drive shaft 19 with their axes aligned, and the transmission shaft 7 is supported by the bearing 29. Together with the ridge drive shaft 27
A disc-shaped holding plate 3 fixed to the first fixed holding member 12.
0 (FIG. 4) and a connecting shaft 31 facing each other at a distance.
It is supported by bearings 33 and 35 held by disc-shaped holding plates 32 (FIG. 4) connected with each other. Further, the bevel gears 36 and 37 fixedly mounted on the transmission shaft 7 and the ridge drive shaft 27 are attached to the first
The bevel gears 26 of the drive shaft are engaged with each other, and the first drive shaft 19 and the ridge drive shaft 27 are configured to rotate as the transmission shaft 7 rotates.

The second fixed holding member 13 is formed, for example, as a cubic box, and the second drive shaft 21 is provided with a bearing 3 provided on the front side of the fixed holding member 13.
It is supported by 9, 40, is projected forward in the traveling direction of the traveling machine 2, and is connected to the power shaft 41 of the traveling machine 2. As shown in FIGS. 2 and 5, a bevel gear 42 is fixedly mounted on the drive shaft 21 in the fixed holding member 13. Further, bearings 4 provided on the left and right of the fixed holding member 13
The transmission shaft 7 is supported by 3, 45. Further, the bevel gear 46 fixed to the transmission shaft 7 is replaced with the bevel gear 4 of the second drive shaft.
The transmission shaft 7 is configured to rotate by the rotation of the second drive shaft 21 that is meshed with the shaft 2 and rotated by the power shaft 41 of the traveling machine 2.

When viewed from the front and rear sides, the first movable holding member 20 has a horizontally long flat box shape in which edges 47 and 49 on both end sides are semicircular, and the base end side thereof has the shape shown in FIG. As shown in FIG. 6, six bolt holes 50 are provided concentrically along the arc edge 47 and at an equal angular pitch so as to penetrate in the thickness direction of the box. Further, as shown in FIGS. 2 and 4 to 5, a portion of the movable holding member 20 on the distal end side has the first drive shaft 1
A first working shaft 51 parallel to the movable holding member 20
The bearings 52 and 53 are arranged on the front and rear sides of the bearing. In the movable holding member 20, the sprocket 5 having the same diameter is attached to the drive shaft 19 and the first working shaft 51.
5, 56 are fixedly installed, and both sprockets 55,
A chain 57 is wound around 56.

The second movable holding member 22 is also the first movable holding member 22.
The movable holding member 20 has substantially the same structure, and when viewed from the front and rear sides, the edge portions 59 and 60 on both end sides form a horizontally long flat box shape having a semicircular shape. As shown in FIG. 7, six bolt holes 61 are formed concentrically along the arc edge 59 at an equal angular pitch so as to penetrate in the thickness direction of the box. Further, as shown in FIGS. 2 and 4 to 5, a portion of the movable holding member 22 on the tip side is provided with the second drive shaft 2
The second working shaft 62 parallel to the first working shaft 62
The bearings 63 and 65 are arranged on the front and rear sides of the bearing. Then, in the movable holding member 22, the sprocket 6 having the same diameter is attached to the drive shaft 21 and the second working shaft 62.
6, 67 are fixed, and both sprockets 66,
A chain 69 is wound around 67.

The first movable holding member 22 having the above structure
As shown in FIG. 4, a disc-shaped fixed flange (holding the bearing 23) 7 fixed to the first fixed holding member 12 is provided.
0 is attached. This disc-shaped fixed brim 70 is shown in FIG.
As shown in FIG. 6, a large number of screw holes 72 (for example, 2
4) are provided concentrically and at an equal angular pitch.

The second movable holding member 2 having the above construction
2 also includes the second fixed holding member 13 as shown in FIG.
Disk-shaped fixed collar fixed to the (holding the bearing 40)
It is attached to 73. As shown in FIG. 7, a large number of screw holes 76 (for example, 24) into which the fixing bolts 75 that are inserted through the bolt holes 61 can be screwed are provided in the disc-shaped fixing collar 73.
Are provided concentrically and at an equal angular pitch.

However, the rotation state of the first movable holding member 20 is set as required, and as shown in FIGS. 4 and 8, the fixing bolt 71 which is inserted through the bolt hole 50 (FIG. 6) is moved to the circular shape. When the screw holes 72 of the plate-like fixed brim 70 are screwed, the first movable holding member 20 is rotated by the six fixing bolts 71 so that the first movable holding member 20 is tilted toward the ridge side in a required rotating state. It will be fixed to the fixed holding member 12. Similarly, the rotational state of the second movable holding member 22 is set as required, and as shown in FIGS. 4 and 9, the fixing bolt 75 that is inserted into the bolt hole 61 (FIG. 7) is fixed to the disc. When it is screwed into the screw hole 76 of the fixed fixing collar 73, the six fixing bolts 75
The first movable holding member 22 is fixed to the second fixed holding member 13 so that the first movable holding member 22 is in a required rotating state and is inclined toward the ridge side.

The rotation directions F1 and F2 of the first work shaft 51 and the second work shaft 62 are as shown in FIG.
Both are in the same direction (counterclockwise in FIG. 10). As shown in FIGS. 1-2 and 10, the protruding portion 77 of the first working shaft 51 is provided with a plurality of, for example, scalloped cutting blades 79 for scraping the old ridges 3 in the circumferential direction. The rotary cutting blade 80 is fixed. This rotary cutting blade 80
With the rotation of the first work shaft 51, as shown in FIG. 10, the old ridge 3 is rotated F1 so as to be scraped in an arc shape from the outer side toward the inner side (field side). Further, as shown in FIGS. 1 and 2, the projecting portion 81 of the second working shaft 62 is provided with a plurality of scraping blades 82 for scraping the soil on the rice paddy in order to supply the soil on the old ridge. The earth-filled rotor 83 is fixedly provided. As shown in FIG. 10, the earth embankment rotor 83 rotates F2 so as to cut into the rice field 85 in the direction away from the old ridge 3 as the second work shaft 62 rotates.

Also, the upper part of the embankment rotor 83 and the old ridge 3
The guide cover 86 is arranged over the upper part of the above, and the rotary cutting blade 80 is arranged close to the guide cover 86 on the front side thereof. The guide cover 86 is in the form of a box that opens downward, and the mounting surface 8 is formed on the rear end of the rear surface 87.
9 is formed, and a hanging portion 90 for receiving soil is provided at the tip. Further, as shown in FIG. 11, an earth guiding plate 91 which is concavely curved rearward in the traveling direction of the tractor 2 is provided in the upper part of the old ridge in the guide cover 86, and the rear surface portion 87 is provided with the earth guiding plate 91. An opening 92 for discharging the soil guided by the soil guide plate 91 is provided. However, the soil scraped up by the rotation of the earth-filling rotor 83 is guided and moved by the guide cover 86, and most of it is soil guide plate 9.
1 is discharged toward the rear in the traveling direction of the traveling machine, and is supplied to the cut recess 93 (FIGS. 1 and 10) of the old ridge. Further, in the present embodiment, the scraping of the old ridge 3 by the rotary cutting blade 80 and the earth embossing rotor 83 are performed.
The upper and lower positions of the first and second fixed holding members 12 and 13 are adjustable so that the soil on the paddy field can be more effectively scooped by the tractor. It is done like this.

In the present embodiment, the guide cover 86 is a circle shown in FIG. 4 in which the mounting surface portion 89 on the base end side is fixed to the front surface portion on the tip end side of the second movable holding member 22. It is bolted to the plate-shaped fixing plate 95. The fixing structure is such that six bolt holes are provided concentrically around the axis of the second working shaft 62 on the mounting surface portion 89 at an equal angular pitch, and the disc-shaped fixing plate 95 has an angle of, for example, 15 degrees. 24 bolt holes 96 are provided at a pitch, and the selected bolt holes 96 on the disk-shaped fixing plate 95 side are aligned with the bolt holes on the guide cover 86 side so that the guide cover 86 can be mounted in a desired direction. It becomes adjustable to the one. Guide cover member 8
This adjustment of 6 allows the soil to be properly supplied to the old ridges even when the rotating state of the movable holding member 22 of the 2 is changed, or depending on the soil quality of the dry and wet fields. This is done in order to be able to correctly supply the old ridge. One mode of the adjustment is as shown by the solid line and the alternate long and short dash line in FIG.

In FIGS. 1 and 3 to 4, reference numeral 97 is a casing for trimming which extends backward toward the traveling direction of the traveling machine and has an oval shape when viewed from the front and back sides. A small-diameter base end side portion of the casing. 99 is rotatably pivotally attached to the ridge adjusting drive shaft 27, and a ridge adjusting working shaft 100 parallel to the ridge adjusting drive shaft 27 is provided at a tip end portion of the casing 97 in parallel with the ridge adjusting drive shaft 27.
It is arranged so as to be supported by 01 and 102. In the casing 97, as shown in FIG. 5, the sprocket wheels 103, 1 are respectively attached to the ridge driving shaft 27 and the ridge operating shaft 100.
05 is fixed, the chain 106 is wound around both sprockets, and as the power shaft 41 (FIG. 2) rotates, the trimming work shaft 100 rotates via the sprockets 103 and 105 and the chain 106. And, as shown in, for example, FIG. 1, FIG. 3 and FIG. 12, a rotary type ridger 109 is fixed to the ridge working shaft 100 for firmly compacting the embankment 107 supplied on the old ridge into a kneaded state. ing. The trimmer 10
The inner rotary plate 111 and the outer rotary plate 112 each having a conical surface are fixed to the inner and outer end portions of the columnar portion 110 with the common axis. The ridge casing 97 is, for example, as shown in FIG. 4, a handle shaft 115 screwed into a screw hole of a support piece 113 fixed to the connecting shafts 31, 31.
By rotating the, it is appropriately rotated according to the height of the ridge to be formed, and is held in that state.

Next, a description will be given of how the ridge forming machine 1 having the above-described structure adjusts the ridges. 1 and 10 show a case in which a new ridge is formed while the old ridge 3 having a trapezoidal cross section is restored. The rotation state of the first movable holding member 20 is a required state according to the height of the upper surface of the old ridge 3, for example, the outer edge 11 of the old ridge.
The rotary cutting blade 80 is set so as to cut a circular arc from about 7 to the inside (field side) to the vicinity of the tiller forming the lower side skirt 118, and is fixed in that state. Second
The rotation state of the movable holding member 22 of the embankment rotor 8 with respect to the rice field 85 depends on the amount of embankment on the scraped old ridge.
When the cutting depth of 3 is set to an appropriate turning state, for example, the running trace of the tire T of the tractor (a dent formed by running along the ridge, the groove width of which changes depending on the tire width. It changes depending on whether it is a dry field or a wet field.) In order to avoid 119 (FIG. 1 and FIG. 10) as much as possible, the embankment rotor 83 moves away from the old ridge in the field 8
It is set in a turning state for cutting into 5, and fixed in that state.

The fixing of the first movable holding member 20 and the second movable holding member 22 to the first fixed holding member 12 and the second fixed holding member 13 is, as described above, six fixings. It is performed using bolts 71 and 75.

In this state, when the ridge forming machine 1 is operated while the tractor is running, the rotary cutting blade 80 scrapes the old ridge 3 from the outside toward the inside (field side). At the same time, the embankment rotor 83 cuts into the rice field 85 in the direction away from the old ridge 3 and scrapes up the soil on the rice field while scraping it. The soil thus scraped up is guided by the guide cover 8 by the action of centrifugal force.
6, is guided to the soil guide plate 91 as shown in FIG. 11, and is supplied to the old ridges toward the rear in the traveling direction of the tractor through the opening 92 provided in the rear surface portion 87 of the guide cover, Embankment 107 in the cut-out recess 93 of the old ridge
(FIGS. 1 and 12).

The ridge forming machine according to the present invention is applicable to various conventional forms of ridges such as those having a trapezoidal cross section and those having a triangular shape. Even in that case, the rotation state of the first movable holding member 20, the tire traveling position of the tractor,
Further, by setting the upper and lower positions of the first and second fixing and holding members 12 and 13 as required, the old ridge can be scraped from the outer edge of the old ridge toward the inside (field side). Then, the earth-filling rotor 83 scoops up the required soil in the same manner as described above.

After the soil is supplied to the old ridges in this way in a raised state, as shown in FIG.
Due to the rotation of 09, the embankment 107 is compacted into a kneaded state and the ridges 5 shown in FIG. 1 are formed.

(Other Embodiments) First movable holding member 20 and second movable holding member 2
2 is preferably box-shaped, but is not limited to this.

As means for fixing the first movable holding member 20 and the second movable holding member 22 in the required rotation state, various known fixing means other than the above-mentioned bolt fixing means can be adopted. This also includes means for fixing to the traveling machine via a support rod or the like.

In the present invention, in the aspect of scraping off the old ridge by the rotary cutting blade, the outer portion 113 of the old ridge may be left as shown in FIG. Further, as shown in the figure, the earth-filled rotor may scrape off the inner side portion 116 of the old ridge together with the rice field portion 115.

In addition to the above-mentioned rotary type, the ridge leveling device according to the present invention may employ various types such as a type in which the embankment portion is tapped from the upper and side surfaces thereof, or the like, which finishes the embankment portion into a required ridge.

[0041]

The present invention has the following excellent effects. In the present invention, the first movable holding member and the second movable holding member are provided so as to be independently rotatable around the axes of the first drive shaft and the second drive shaft, respectively. Therefore,
By setting the rotation state of the first movable holding member as required according to the height of the old ridge to be repaired, the old ridge can be scraped off in a predetermined manner. Further, by rotating the second movable holding member to separate the earth-filling rotor from the ridge as required, even if the width and depth of the recess formed by running the tire are different, avoid the recess as much as possible, It is possible to scrape a predetermined amount of soil. Thus, according to the present invention, even if the width of the tire is different, it can be surely adjusted, and not only the adjustment of the dry field, but also the adjustment of the wet field where the depression due to tire running deepens. It can be done reliably and easily.

In the ridge forming machine according to the present invention, when the upper and lower positions of the first fixed holding member and the second fixed holding member are adjustable, the upper and lower positions are set as required to make More suitable for various conditions at the time of ridge adjustment such as height of ridges, cross-sectional shape of old ridges, scraped amount of old ridges, difference in soil quality (depending on whether it is a dry or wet field), tire width of traveling machine, etc. It is possible to scrape old ridges and scrape up soil.

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 old ridge, the earth-filling rotor scrapes the inner portion of the old ridge to remove the soil. Even when scraping up, it is possible to cut naturally from the inner part, which has a relatively low hardness. Therefore, the scraping can be performed with less load applied. Therefore, it is not necessary to configure the driving device with a large horsepower as in the above-mentioned conventional ridge forming machine.

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 old ridge, the soil of the soft and moist rice field is mainly crushed. You can scrape it up and supply it to the old ridge. Therefore, by the compaction by the ridger, it is possible to form a firmly strong and stable ridge. When using a conventional ridge forming machine that rotates the rotating rotor in the opposite direction, as described above, in order to scrape the soil of the old ridge upward from the hem, the soil of the dry and hard old ridge is used. However, there was a problem that it was easy to be lifted up in a large lump state, it was difficult to compact the embankment at the time of arranging ridges, and it was easy to form unstable ridges with rough grain and strength, but the present invention has the advantage that it can solve this Have.

When the soil guide plate is provided in the upper part of the old ridge inside the guide cover for guiding the soil scraped up by the rotation of the earth-filling rotor so as not to collide with the rotary cutting blade, The soil can be guided to the soil guide plate (not all the soil) and discharged to the old ridges toward the rear in the traveling direction of the traveling machine.

By making it possible to change the mounting state of the guide cover, the soil guided by the guide cover can be put on the old ridges even when the rotating state of the second movable holding member is changed or the soil quality is changed. It will be able to supply correctly.

In the ridge forming machine according to the present invention, the first
When the fixed holding member and the second fixed holding member of No. 1 are arranged with a required space left and right in a direction substantially orthogonal to the ridge,
The movable holding member and the second movable holding member can be arranged on the left and right. As a result, the front-rear width of the ridge forming machine can be reduced, the apparatus can be made compact, ridges can be stably adjusted, and labor saving of ridge formation can be achieved.

More specifically, as shown in FIG. 14, if one drive shaft 120 is provided, the first movable holding member 20 and the second movable holding member 22 are substantially orthogonal to the ridges. When provided in a state where they are overlapped on the left and right in the ridge forming direction, compared to the case where the first movable holding member 20 and the second movable holding member 22 are positioned on the left and right in the direction substantially orthogonal to the ridge, The length of the front and back becomes long, and the balance during operation of the ridge forming machine becomes poor. This may be less problematic if the tractor has a high horsepower number, but it will also directly affect the finish of the ridge in the case of a tractor having a low horsepower number. Further, for example, as shown in FIG. 14, when a ridge forming machine 109 according to the present invention is attached to the rear portion of the tractor 2 to form a ridge, when the tractor 2 reaches the end 121 of the rice field, the front end 122 of the tractor. The distance L from the ridge adjusting unit 109 to the front end 123 of the ridge adjusting unit requires that the ridge be formed manually, but the first movable holding member 2
Since 0 and the second movable holding member 22 are overlapped with each other, the length of the portion that cannot be adjusted becomes long due to the overlap. Further, when introducing a tractor with a large horsepower number to eliminate the poor balance at the time of adjusting the ridge due to the increase in the front-rear length of the ridge forming machine, the front-rear length of the tractor naturally increases, The length of the unpainted ridge also becomes longer.

On the other hand, as shown in FIG. 15, the first
When the movable holding member 20 and the second movable holding member 22 are positioned on the left and right in the direction substantially orthogonal to the ridge, as described above, the front-rear length of the ridge forming machine can be set to be shorter and the ridge forming machine can be set shorter. The balance during operation can be good. As a result, even with a tractor having a small horsepower number, it is possible to stably form the ridges, and the length L where the ridges cannot be applied can be shortened, so that the ridge application work by hand can be reduced. Further, since the balance of the ridge forming machine is good, a tractor with a small horsepower can be introduced. In that case, the length in the front and rear of the tractor is shortened by that much, so that the above-described distance L where the ridges cannot be applied can be further shortened, and labor saving in ridge formation can be achieved accordingly.

[Brief description of the drawings]

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

FIG. 2 is a plan view of a part of the cross section.

FIG. 3 is a plan view illustrating a configuration of a trimming machine.

FIG. 4 is a perspective view illustrating a positional relationship among a fixed holding member, first and second movable holding members, and a trimming casing.

FIG. 5 is a perspective view illustrating a conduction mechanism of the ridge forming machine.

FIG. 6 is a perspective view illustrating a configuration for attaching a first movable holding member to a first fixed holding member.

FIG. 7 is a perspective view illustrating a configuration of attaching a second movable holding member to a second fixed holding member.

FIG. 8 is a cross-sectional view illustrating a configuration for attaching the first movable holding member to the first fixed holding member.

FIG. 9 is a cross-sectional view illustrating a configuration for attaching a second movable holding member to a second fixed holding member.

FIG. 10 is a side view for explaining the operation of the rotary cutting blade and the earth embedding rotor.

FIG. 11 is a perspective view illustrating an attached state of a soil guide plate provided on the guide cover.

FIG. 12 is an explanatory view for explaining the ridge-reducing action of the ridge forming machine.

FIG. 13 is a cross-sectional view illustrating another scraped state of old ridges.

FIG. 14 is a plan view illustrating a problem when a first movable holding member and a second movable holding member are attached to one drive shaft in an overlapping manner.

FIG. 15 is a plan view illustrating advantages of the ridge forming machine according to the present invention.

FIG. 16 is an explanatory diagram for explaining a problem of a conventional ridge forming machine.

[Explanation of symbols]

 1 Ridge Forming Machine 2 Traveling Machine 3 Old Ridge 5 Ridge 6 Pretreatment Mechanism 11 Fixed Holding Member 12 First Fixed Holding Member 13 Second Fixed Holding Member 19 First Drive Shaft 20 First Movable Holding Member 21 Second Drive shaft 22 second movable holding member 51 first work shaft 62 second work shaft 80 rotary cutting blade 83 earth emplacement rotor 86 guide cover 91 soil guide plate 109 soil leveling machine

Claims (7)

[Claims] 1. 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. A first fixed holding member and a second fixed holding member that are independently arranged, and project toward the front or rear in the traveling direction of the traveling machine to the first fixed holding member. A first drive shaft is provided, a first movable holding member is provided on the first drive shaft so as to be rotatable about its axis, and the traveling machine is provided on the second fixed holding member. A second drive shaft projecting forward or backward in the traveling direction of the second drive shaft, and a second movable holding member provided on the second drive shaft so as to be rotatable about its axis; The first movable holding member and the second movable holding member are made rotatable independently of each other, The first movable holding member is provided with a first working shaft that is parallel to the first driving shaft with a required distance therebetween, and the first movable shaft is fixed to the first movable holding member. While connecting the work shaft to the first drive shaft via a transmission element, the second movable holding member is also provided with a second work shaft parallel to the second drive shaft. The second work shaft is connected to the second drive shaft via a transmission element, and the first work shaft is fixedly provided with a rotary cutting blade for cutting old ridges as required. The second working shaft is fixedly provided with an earth emplacement rotor for scraping up at least the soil on the rice field in order to supply the soil on the old ridge scraped off by the rotary cutting blade. Due to the rotation of the first working shaft through the conduction element with the rotation of the rotary cutting blade, Due to the rotation of the second ridge from the outer portion toward the inner side (field side) so as to scrape off the old ridge, and the rotation of the second working shaft through the transmission element accompanying the rotation of the second drive shaft, The earth-filling rotor was designed so as not to rotate so as to cut into the paddy field in the direction away from the old ridge, and the embankment on the old ridge was compacted by a ridger to form a ridge. Ridge forming machine. 2. The pretreatment mechanism according to claim 1, wherein the first fixed holding member and the second fixed holding member are arranged at required intervals on the left and right in a direction substantially orthogonal to the ridge. A ridge forming machine equipped. 3. A sprocket is fixed to the first work shaft, a sprocket is fixed to the first drive shaft, a chain is wound around the both sprockets, and a sprocket is fixed to the second work shaft. A ridge forming machine having a pretreatment mechanism according to claim 1 or 2, wherein a sprocket is fixedly mounted on the second drive shaft, and a chain is wound around the both sprockets. 4. The soil scraped up by the rotation of the earth-filling rotor is guided by a guide cover arranged over the earth-filling rotor and over the old ridge to be supplied onto the old ridge. A ridge forming machine comprising the pretreatment mechanism according to claim 1 or 2. 5. An earth guiding plate, which is concavely curved toward the rear in the traveling direction of the traveling machine, is provided in the upper part of the old ridge in the guide cover so as not to collide with the rotary cutting blade, and is scraped up by the earth embossing rotor. 5. The ridge formation with the pretreatment mechanism according to claim 4, wherein the soil is guided by the soil guide plate, discharged toward the rear in the traveling direction of the traveling machine, and dropped onto the old ridge. Machine. 6. The soil guided by the guide cover is properly supplied onto the old ridge, even when the rotation state of the second movable holding member is changed or the soil quality is changed.
The ridge forming machine provided with the pretreatment mechanism according to claim 4 or 5, wherein the mounting state of the guide cover is changeable. 7. A ridge having a pretreatment mechanism according to any one of claims 1 to 6, wherein the vertical positions of the first fixed holding member and the second fixed holding member are adjustable. Forming machine.