JP2004129582A - Levee coater - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a levee coater affording a sufficient cut width for top cutting treatment and ensuring formation of such a cut surface that a new ridge to be formed on the cut width is hard to crumble. <P>SOLUTION: The levee coater comprises a top cutting treatment device having a recessed disc 54, a filling device having a tilling tine 61A and a plastering device having a coating drum 71 and functioning as a levee-forming component. In this levee coater, the recessed disc 54 has a recessed surface 54A turned about 45° inward with the advancing direction and about 30° upward with the ground surface and a projected part 54B near the center and is provided with a width L1 for a cutting area 54S corresponding to the length L2 of a cylindrical portion 71A of the coating drum 71. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a ridge coating machine for forming ridges that partition paddy fields and the like.
[0002]
[Prior art]
This type of ridge coater is attached to the rear of a traveling machine such as a tractor, driven by the power from the traveling machine, and moves along the old ridge while forming a new ridge leveled on the old ridge. The main components are a soil filling device that cuts the inside of the old ridge and fills the soil on the cut old ridge, and a coating device that applies the soil raised by the soil filling device in a ridge shape. I have.
[0003]
In such a ridge coater, when weeds etc. are overgrown on the upper surface of the old ridge or the upper surface of the old ridge is hard, the new ridge is formed on the old ridge. Since the boundary between the ridge and the new ridge is easily separated and the new ridge is likely to collapse after formation, a ceiling processing device that cuts the upper surface (heaven) of the old ridge is provided in front of the embankment device. Various proposals have been made to form a new ridge on the upper surface of the cut old ridge.
[0004]
As a conventional example of a ridge coater equipped with such a sky processing apparatus, as described in Patent Document 1 below, a rotary for sky processing is separately provided in front of a rotary of an embankment apparatus. As described in Patent Document 2, a plow-shaped pretreatment device is provided at the front stage of the embankment device, and as described in Patent Document 3, a disk-shaped pretreatment device is provided at the front stage of the embankment device. Have been proposed.
[0005]
[Patent Document 1]
JP-A-8-191603 [Patent Document 2]
Japanese Patent Application Laid-Open No. 2001-2 [Patent Document 3]
JP-A-10-295105
[Problems to be solved by the invention]
Each of the ridge coaters provided with such conventional ceiling treatment apparatuses has practical problems. That is, in the case of performing the sky processing by driving the rotary like the one described in Patent Literature 1, there is a problem that the driving mechanism becomes complicated and the weight increases or the cost increases.
[0007]
In the case where a plow-shaped pretreatment device is provided, such as that described in Patent Literature 2, the above-described problem can be avoided because the pretreatment device (sky processing device) has no drive unit. And since the excavated soil cut by the pretreatment device is inverted and discharged before the embankment device, it becomes possible to completely mix the crushed weeds etc. in the soil raised on the old ridge, There is also an advantage that no separation surface is formed in the ridge. However, there is a problem that the traction resistance is increased due to the resistance on the plow-shaped surface, resulting in an increase in the size and output of the traveling body. Also, since the cutting surface by the plow-shaped pretreatment device forms an inclined surface inside the old ridge, there is a problem that the new ridge formed on this surface is likely to slide down along the surface and collapse. is there.
[0008]
Further, in the case where a disk-shaped pretreatment device is provided, such as that described in Patent Document 3, although the traction resistance is smaller than that of the plow-shaped one, the disk surface is disposed obliquely to the traveling direction. However, there is a problem that the cutting width becomes narrow, so that a sufficient ceiling treatment effect cannot be obtained, the reversal effect of the excavated soil is small, and a separation surface such as a weed is easily generated in the new ridge.
[0009]
The present invention addresses such a problem and provides a ridge coater having a practical and good ceiling processing function, and is composed of a ceiling processing apparatus having no driving mechanism and having a low weight and weight. Low cost, low traction resistance, no separation surface in the new ridge, sufficient cutting width for heavenly treatment, new ridge formed on it The purpose is to form a cutting surface.
[0010]
[Means for Solving the Problems]
In order to achieve such an object, a furrowing machine according to the present invention has the features according to the following claims.
[0011]
The invention according to claim 1 is a heavenly processing apparatus that cuts the upper surface of the old ridge, a banking device that is provided at a subsequent stage, cuts the inside of the old ridge, and fills the soil with the cut old ridge. A levee coating machine configured to apply the soil raised by the ridge shape in a ridge shape, and forming a ridge while advancing along the old ridge, wherein the coating device is provided around an axis perpendicular to the old ridge. Is provided with a coating drum composed of a cylindrical portion for coating the upper surface of the ridge and a truncated cone for coating the side surface of the ridge, and the heaven processing device includes a concave shaving area corresponding to the length of the cylindrical portion. It is characterized in that it comprises a rotatable concave disc formed on the upper surface of the old ridge and for inverting the excavated soil from the concave shaved area and discharging it in front of the embankment device.
[0012]
The invention according to claim 2 is based on the ridge coating machine according to claim 1, wherein the concave disk has a convex portion near the center of the concave surface, and the concave surface is disposed obliquely inward in the traveling direction. It is characterized by being performed.
[0013]
The invention according to claim 3 is based on the ridge coating machine according to claim 1 or 2, wherein the concave surface of the concave disk is directed about 45 ° inward with respect to the traveling direction and about 30 ° upward with respect to the ground. It is characterized by being arranged in.
[0014]
The invention according to claim 4 is based on the premise of the ridger according to claims 1 to 3, characterized in that the position of the concave disk can be adjusted vertically and horizontally with respect to the machine body.
[0015]
The invention according to claim 5 is based on the premise of the ridger according to claims 1 to 4, wherein the concave disc is mounted on a flip-up mechanism that retreats upward.
The ridge coater having the features according to the respective claims has the following operations.
[0016]
First, the upper surface of the old ridge is cut by the heaven processing device, and the excavated soil is released before the embankment device. The excavated soil inside the old ridge that was cut is mixed and crushed, and these are piled up on the old ridge that has been cut. Form ridges.
[0017]
At this time, the applicator is provided with an applicator drum composed of a cylindrical section for applying the upper surface of the ridge and a frustoconical section for applying the side surface of the ridge, and this is driven to rotate about an axis perpendicular to the old ridge. A new ridge compacted into a trapezoid having a flat upper surface and a slope along the ridgeline of the truncated cone can be formed.
[0018]
Then, the sky processing device forms a soil removal area having a concave cross section corresponding to the length of the cylindrical portion in the coating drum on the upper surface of the old ridge by the rotatable concave disk. A shaved area with a concave cross-section is formed in the entire area applied in the part, and a good heavenly treatment effect in which the new ridge is hard to collapse can be obtained. In other words, on the upper surface of the old ridge, a concave receiving surface is formed over the entire area where the embankment is applied, so that the new ridge to be applied is held by this receiving surface, As a result, it is possible to reliably compact and prevent collapse after formation.
[0019]
Further, since the concave disk of the ceiling processing apparatus is a rotatable disk and has no driving means, the driving mechanism does not become complicated, and it can be manufactured at a low weight and at low cost. Also, with respect to the resistance, the concave disk rotates on its own axis, so that the traction resistance can be reduced while forming a wide shaved area on the upper surface of the old ridge. And since this concave disk has the function of reversing the excavated soil, the excavated soil on the upper surface of the old ridge where weeds etc. grew is inverted and released before the embankment device, and the soil is raised on the old ridge. Weeds and the like that have been pulverized can be completely mixed, and a new ridge in which a separation surface is hardly formed can be formed.
[0020]
Secondly, since the convex portion is formed near the center of the concave surface of the concave disk, the concave surface of the concave disk directed diagonally inward in the traveling direction is used to expand the soil removal area on the old ridge upper surface. Even in the case of facing in the traveling direction, the excavated soil is easily inverted by the action of the convex portion, and the excavated soil over a wide range of the upper surface of the old ridge is surely inverted and supplied before the embankment device. be able to.
[0021]
Third, by setting the angle between the facing direction of the concave surface of the concave disk and the traveling direction to 45 °, a wide soil removal area is secured on the upper surface of the old ridge, and the facing direction of the concave surface is set to 30 degrees with respect to the ground. ° Since it is directed upward, the excavated soil once guided upward can be reliably inverted and discharged to the front of the embankment device, in combination with the above-mentioned operation of the convex portion. Can be played reliably.
[0022]
Fourth, since the position of the concave disk can be adjusted vertically and horizontally relative to the fuselage, the position of the concave disk is adjusted, and the shaved area formed on the upper surface of the old ridge is painted on the cylindrical portion of the drum. It is possible to make adjustments corresponding to the length of the ground, and to adjust the earth removal depth in consideration of the traction resistance.
[0023]
Fifth, since the concave disk is equipped with a flip-up mechanism that retreats upwards, in the case of an old ridge that does not require heavenly treatment, the concave disk is put into an unused state and work with less traction resistance is performed. Can be realized.
[0024]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 and 2 are explanatory views showing the entire structure of a ridger according to an embodiment of the present invention. FIG. 1 shows a plan view, and FIG. 2 shows a side view. In these figures, the ridge coating machine 1 is attached to the rear of a tractor (not shown) and performs ridge forming work while proceeding in the direction of an arrow. The connecting part 10, the offset mechanism part 20, and the body support part 30 , A power transmission unit 40 and a ridge forming unit including a heaven processing device 50, an embankment device 60, and a coating device 70.
[0025]
The connecting portion 10 has a top link portion 11 and left and right lower link connecting portions 12 and 12 for connecting to a three-point link connecting mechanism of the tractor, and also supplies power from the PTO shaft of the tractor via a universal joint and a transmission shaft. It has an input shaft (not shown) for receiving, and these are mounted on a transmission frame 13 also serving as a main body frame.
[0026]
The offset mechanism section 20 is a mechanism for offset-moving the body support section 30 and the ridge forming section supported by the body support section 30 toward the side of the tractor with respect to the transmission frame 13 connected to the rear of the tractor. Links 21 and 21 and a cylinder mechanism 22 for adjusting an offset amount are provided.
[0027]
The body support unit 30 supports the power transmission unit 40 and the ridge forming unit, and includes a support frame 31 (31A, 31B, 31C). A triangular disk-shaped gauge wheel 32 is provided on the support frame 31 so that the gauge wheel 32 can be adjusted up and down by an up and down adjustment support section 33.
[0028]
The power transmission unit 40 transmits power from the input shaft described above to each drive unit of the embankment device 60 and the application device 70. One of the power transmission units 40 includes a W joint (wide-angle joint) from the input shaft. A transmission system that is transmitted to the drive unit of the applicator 70 via a spline transmission shaft 41 and a transmission case supported by the support frame 31, and the other is a transmission case that includes a hydraulic motor from the transmission case. A power transmission system for transmitting power and driving the drive unit of the embankment device 60 by the hydraulic motor.
[0029]
Hereinafter, the ridge forming section will be described. The heaven processing device 50 is provided at the forefront of the ridge forming portion, and is slidable to the left and right with respect to the support frame 31C (body) and can be positioned at a desired position. At the end, a vertical member 53 (see FIG. 2) whose position can be adjusted vertically by operating an adjustment handle 52, and a concave disk 54 rotatably supported at the lower end of the vertical member 53. The concave disk 54 has a concave surface 54A directed obliquely inward in the traveling direction (arrow), and has a convex portion 54B near the center of the concave surface 54A. Further, as shown in FIG. 2, the ceiling processing apparatus 50 is rotatable about a shaft from a support frame 31C. By this rotation, a bouncing mechanism for bouncing the concave disk 54 to an upper evacuation position is provided. Have.
[0030]
The embankment device 60 is mounted on the rear stage of the heaven processing device 50 so as to be vertically adjustable with respect to the support frame 31B, and is rotatably driven by the drive unit described above. And a side cover 63 arranged on the outer end of the old ridge.
[0031]
The rotary tillage device 61 includes a rotary drive shaft (not shown) disposed in parallel with the traveling direction of the machine body, and a plurality of tillage claws 61A attached to the periphery of the rotary drive shaft. The inside of the old ridge is cut by 61A, and the excavated soil is crushed and flipped up while being crushed, and the soil filling cover 62 swells the soil on the old ridge.
[0032]
The side cover 63 includes an elastic plate 63B having a flexible structure made of a resin plate or the like below the cover main body 63A, and the elastic plate 63B is arranged so as to be in contact with the old ridge. The cover body 63A itself is supported by the parallel link 63C so as to be vertically movable. Therefore, the side cover 63 slides while the lower side of the elastic plate 63B abuts on the outer surface of the upper surface of the old ridge at the time of work, and moves up and down along the unevenness of the upper surface of the old ridge. The embankment guided by 62 and raised on the old ridge is configured to be reliably received outside the upper surface of the old ridge.
[0033]
The application device 70 is mounted on the support frame 31A at a stage subsequent to the embankment device 50, and a rotation drive shaft (not shown) that is rotationally driven by the above-described driving unit is perpendicular to the traveling direction of the body (perpendicular to the old ridge). ), And a coating drum 71 composed of a cylindrical portion 71A and a truncated cone portion 71B is mounted on the rotary drive shaft. The upper part of the coating drum 71 is covered with a cover 72.
[0034]
The basic function of the ridge coating machine 1 will be described. The tractor is moved along the side of the old ridge while moving the body of the ridge coating machine 1 in the direction of the arrow along the old ridge. The new ridge formed on the old ridge is formed by the action of the ridge forming part.
[0035]
The function of each device in the ridge forming section is as follows: the upper surface of the old ridge is cut by the concave disk 54 of the ceiling processing device 50, and the excavated soil is discharged before the embankment device 60; The inside of the old ridge is cut by the cultivator 61, and the excavated top of the old ridge cut by the heavenly processing device 50 and the excavated inside of the old ridge cut by the rotary cultivator 61 are crushed and mixed together. Then, these are guided by the embankment cover 62 and are raised on the cut old ridge. Then, the soil raised by the applicator 70 mounted on the subsequent stage is applied in a ridge shape to form a new ridge on the old ridge.
[0036]
At this time, the coating device 60 includes a coating drum 71 including a cylindrical portion 71A for coating the upper surface of the ridge and a truncated cone portion 71B for coating the side surface of the ridge, and this is rotated around an axis perpendicular to the old ridge. Therefore, a new ridge compacted into a trapezoid having a flat upper surface corresponding to the length of the cylindrical portion 71A and a slope along the ridge line of the truncated cone portion 71B can be formed.
[0037]
Hereinafter, the structure and function of the ceiling processing apparatus 50 which is a main part of the present embodiment will be described in more detail with reference to the drawings.
[0038]
3A and 3B are explanatory views illustrating the structure and arrangement of the concave disc 54 in the ceiling processing apparatus 50 (FIG. 3A is a plan view as viewed from above the fuselage, and FIG. 3B is a partial side sectional view. .). The concave disk 54 has the concave surface 54A and the convex portion 54B formed near the center thereof as described above, and is rotatably supported at the lower end of the vertical member 53 via a bearing 54C. The concave surface 54A faces inward by about 45 ° with respect to the traveling direction as shown in FIG. 3A, and faces upward by about 30 ° with respect to the ground H as shown in FIG. Placed. And, as described above, it is mounted so as to be position-adjustable left and right with respect to the machine body as shown by an arrow a, and vertically adjustable as shown by an arrow b.
[0039]
With reference to FIGS. 4 and 5, a description will be given of main functions of the ridge coater 1 including the above-described processing apparatus 50. FIG. 4 is an explanatory diagram showing an arrangement relationship of each device in the ridge forming section as viewed from the front of the fuselage. Here, the concave disk 54 forms a cutting area 54S having a width L1 perpendicular to the traveling direction due to the above-described traveling direction and the inclination with respect to the ground. The cutting area 54S has a width capable of cutting the upper surface of the old ridge widely, and is set to be substantially equal to the length L2 of the cylindrical portion 71A of the application drum 71 in correspondence with the length L2. As a result, a shaved area is formed on the upper surface of the old ridge up to the outer end of the cylindrical portion 71A.
[0040]
When the concave surface 54A of the concave disk 54 is inclined (inclined by about 45 ° with respect to the traveling direction) so as to form such a wide cutting area 54S, for example, the above-described conventional example (Patent Document 3) In the disk-shaped pretreatment device, the reversibility is extremely deteriorated. On the other hand, in the embodiment of the present invention, the concave surface of the concave disk 54 is inclined slightly upward (approximately 30 ° with respect to the ground), and the convex portion 54B is formed near the center thereof. Improves the reversibility. In other words, in the concave disc 54 of the present embodiment, the excavated soil that has been broadly removed once rises along the concave surface 54A, and is further turned and rotated along the surface of the convex portion 54B to be rotated and driven. At the front of the tillage claw 61A.
[0041]
Then, in the rotary tillage device 61, the inside of the old ridge is cut according to the rotation locus 61B of the rotation of the tillage claw 61A, and the cut soil and the cut soil inverted and inverted by the concave disc 54 are crushed together to form the old ridge. The weeds and the like on the upper surface are crushed and mixed to form an embankment for forming a new ridge.
[0042]
FIG. 5 is an explanatory diagram showing a cutting state of an old ridge and a forming state of a new ridge formed by the present embodiment. According to this embodiment, first, a cutting surface O1 corresponding to the outer periphery of the concave disk 54 is formed on the upper surface of the old ridge, and a cutting surface O2 corresponding to the rotation locus 61B of the tilling claw 61A is formed inside the old ridge. Will be.
[0043]
Here, the cut surface O1 forms a shaved area having a concave cross section with respect to the old ridge. The soil removal area having the concave cross section has a width L1 ′ corresponding to the width L1 of the above-described cutting area 54S, and is formed substantially over the entire length L2 of the cylindrical portion 71A of the application drum 71. Therefore, it is possible to give the overall processing effect to the compaction of the embankment by the cylindrical portion 71A. Further, in the shaved area having a concave cross section formed by the cut surface O1, a receiving surface such as a saucer is formed on the upper surface of the old ridge, and a receiving portion O1a protruding upward is formed inside the receiving surface. Therefore, the new ridge N to be applied is held by the receiving surface or the receiving portion O1a, and the new ridge N formed on the old ridge can be securely compacted and formed after the formation. Collapse can be reliably prevented.
[0044]
Further, since the position of the concave disk 54 can be adjusted vertically and horizontally with respect to the machine body as described above, the positional relationship between the cutting surface O1 formed on the old ridge and the cylindrical portion 71A of the coating drum 71 is appropriately determined. , And the position can be adjusted so as to reliably perform the above-described operation. Further, as described above, since the concave disk 54 is provided with the flip-up mechanism that retreats upwards, in the case of an old ridge that does not require a ceiling treatment, the concave disk 54 is set in an unused state and the traction is performed. Work with less resistance can be realized.
[0045]
Since the present embodiment has such a characteristic structure and function, the rotatable concave disk 54 can be used to cover the soil removal area having a concave cross section corresponding to the length L1 of the cylindrical portion 71A of the coating drum 71. Because it is formed on the upper surface of the old ridge, the top of the old ridge will have a shaved area with a concave cross section in the entire area painted by the cylindrical portion 71A, and a good heaven treatment effect in which the new ridge is unlikely to collapse will be obtained. can get. In addition, since the concave disk 54 is a rotatable disk and has no driving means, the driving mechanism does not become complicated, and it can be manufactured at a low cost and light weight. In addition, with respect to the resistance, the concave disk 54 rotates on its own axis, so that it is possible to reduce the traction resistance while forming a wide shaved area on the upper surface of the old ridge.
[0046]
Since the concave disk 54 has a function of reversing the excavated soil, the excavated soil on the upper surface of the old ridge where weeds and the like have grown is inverted and released in front of the embankment device 60, and the soil that is swelled on the old ridge. Can completely mix the crushed weeds and the like, and can form a new ridge that hardly forms a separation surface inside.
[0047]
The performance of the concave disk 54 can be changed depending on a difference in form such as the curvature of the concave surface 54A or the shape of the convex portion 54B. Therefore, it is necessary to replace the convex disk with a different shape or prepare various kinds of concave disks 54 in a different form, and detachably attach the concave disk 54 to the lower end of the vertical member 53 to make them replaceable. Thus, the setting of the concave disk 54 can be changed according to the conditions of the field or the like.
[0048]
【The invention's effect】
Since the present invention is configured as described above, the following operations are provided. (1) Since it is a heavenly processing apparatus having no driving mechanism, it is possible to realize low weight and low cost.
(2) Since a rotatable concave disk is used, traction resistance can be reduced. (3) Since the excavated soil of the old ridge can be surely inverted, weeds and the like can be crushed and mixed into the embankment, and the separation surface formed inside the new ridge can be eliminated. (4) Since a sufficient cutting width for the ceiling treatment is obtained and the cut surface is formed to have a concave receiving surface, a new ridge formed thereon is sufficiently compacted and hardly collapsed after the formation. New ridges can be formed.
[Brief description of the drawings]
FIG.
It is an explanatory view (top view) showing the whole structure of the ridger concerning one embodiment of the present invention.
FIG. 2 is an explanatory view (side view) showing the entire structure of the ridger according to the embodiment of the present invention.
FIG. 3 is an explanatory diagram illustrating a structure and an arrangement of a concave disk in the ceiling processing apparatus of the embodiment.
FIG. 4 is an explanatory diagram illustrating main functions of the ridger according to the embodiment.
FIG. 5 is an explanatory diagram illustrating main functions of the ridger according to the embodiment.
[Explanation of symbols]
DESCRIPTION OF REFERENCE NUMERALS 1 ridge coating machine 10 connecting part 20 offset mechanism part 30 body support part 40 power transmission part 50 sky processing unit 51 slide member 52 adjustment handle 53 vertical member 54 concave disk 54A concave surface 54B convex part 54C bearing 54S cutting area 60 embankment Device 61 Rotary tillage device 61A Tilling claw 61B Rotation locus 62 Embankment cover 63 Side cover 70 Coating device 71 Coating drum 71A Cylindrical portion 71B Truncated cone portion

Claims (5)

A heaven processing device that cuts the upper surface of the old ridge, a banking device that is installed at the subsequent stage, cuts the inside of the old ridge, and fills the soil on the cut old ridge. A ridge coating machine, comprising a coating device for coating the ridge, and forming a ridge while advancing along the old ridge,
The coating device is rotatably driven around an axis perpendicular to the old ridge, and includes a coating drum including a cylindrical portion for coating the ridge upper surface and a truncated cone portion for coating the ridge side surface,
The heavenly processing device forms a concave shaved area corresponding to the length of the cylindrical portion on the upper surface of the old ridge, and reverses the excavated soil from the concave shaved area and discharges the soil before the embankment device. And a rotatable concave disk. 2. The ridge coating machine according to claim 1, wherein the concave disk has a convex portion near a center of the concave surface, and the concave surface is disposed obliquely inward in a traveling direction. 3. 3. The ridger according to claim 1, wherein the concave surface of the concave disk is arranged at about 45 ° inward with respect to the traveling direction and at about 30 ° with respect to the ground. 3. The ridge coater according to any one of claims 1 to 3, wherein the concave disc can be adjusted vertically and horizontally with respect to the machine body. The ridge coating machine according to any one of claims 1 to 4, wherein the concave disc is mounted on a flip-up mechanism that retreats upward.

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