JP2004244803A - Drainage conduit forming device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drainage conduit forming device for smoothly filling a hydrophobic material such as wooden chips and shells in large quantities in a drainage conduit part. <P>SOLUTION: This drainage conduit forming device mounts a hopper 10 for housing the wooden chips being the hydrophobic material on a work vehicle 2 capable of traveling on a paddy field; has an excavating tool 40 for excavating a drainage conduit (a drainage conduit hole, and a wooden chip supply groove) on the rear side of the work vehicle 2; forms the drain closed conduit 4 in the paddy field by towing the excavating tool 40 in the horizontal direction by travel of the work vehicle 2; and fills the wooden chips supplied from the inside of the hopper 10 in this drainage conduit 4. This drainage conduit forming device has a conveyor 20 for discharging the wooden chip from the hopper 10, and an auxiliary hopper 30 for supplying the wooden chips to the drainage conduit 4 formed by the excavating tool 40 by collecting the wooden chips discharged by the conveyor 20. The conveyor 20 is provided with an adjusting part 50 for restraining an excessive discharge quantity of the wooden chips carried by the conveyor 20. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a drainage culvert forming device, and more particularly, to a drainage culvert for forming a drainage culvert in a field and filling the culvert with a hydrophobic material such as a wood chip or a shell. The present invention relates to a forming apparatus.
[0002]
[Prior art]
Conventionally, as a drainage underdrain forming apparatus of this type, a work machine mounted via a hitch mechanism on a traveling machine such as a tractor or bulldozer capable of traveling on a field, a hopper for storing a hydrophobic material, and a drainage 2. Description of the Related Art A drainage underdrain forming apparatus including a drainage underdrain, specifically, an excavation tool for excavating a drainage underdrain and a hydrophobic material supply groove connected to the underdrain is known.
[0003]
This type of drainage culvert forming apparatus includes, for example, a tank that is mounted on a working machine frame that constitutes a working machine mounted via a hitch mechanism at the rear of a tractor and that contains a hydrophobic material such as chaff. The agitating blade shaft, which is a means for promoting the supply of the hydrophobic material, is provided near the bottom of the tank in two stages, and has a longitudinally extending supply port opened immediately below the stirring shaft. Hydrophobic material such as rice hulls can be continuously supplied to the filling space formed by a pair of permeable material introduction plates with two mouths, and the supply depth can be selectively adjusted according to the environment of the field. Is known (for example, refer to Patent Document 1).
[0004]
Further, as another drainage culvert forming apparatus, a burrow shank (excavation tool) held vertically and a shell-shaped culvert driller provided at the lower end of the shanker are horizontally pulled by a bulldozer. A drain culvert is formed in a field, and rice husks (hydrophobic material) fed from a hopper via a conveyance path provided in a gas flow generator and a shaving shank are filled in the drain culvert. (For example, see Patent Document 2).
[0005]
[Patent Document 1]
JP-A-2002-142502 (Claims, paragraph numbers 0004, 0005 to 0011, FIG. 1)
[0006]
[Patent Document 2]
JP-A-2002-167743 (claims, paragraph numbers 0008, 0009, 0017 to 0019, FIG. 1)
[0007]
[Problems to be solved by the invention]
However, this type of conventional drainage culvert forming apparatus is configured to be mounted on a traveling machine such as a tractor or a bulldozer via a hitch mechanism, so that the capacity of the hopper is limited. There was a problem that the culvert for drainage could not be filled. In particular, there is a problem that the capacity of the hopper needs to be large when filling with a hydrophobic material such as wood chips and shells which are relatively large compared to rice husks.
[0008]
Further, in the former, that is, in Japanese Patent Application Laid-Open No. 2002-142502, since the hydrophobic material in the hopper is supplied to the culvert by natural flow, when applied to a hydrophobic material such as large wood chips or shells, the lower part of the hopper is used. However, there is a problem that a so-called bridge phenomenon occurs and the hydrophobic material is not supplied smoothly. On the other hand, according to the latter, that is, according to the technique described in JP-A-2002-167743, the hydrophobic material can be supplied by the gas flow of the high-pressure gas supplied from the gas flow generator. However, even in this case, there is a problem that a hydrophobic material having a large specific gravity, such as a large wood chip or a shell, cannot be supplied smoothly.
[0009]
The present invention has been made in view of the above circumstances, and provides a drainage culvert forming apparatus capable of smoothly and smoothly filling a culvert part with a relatively large amount of a hydrophobic material such as wood chips or shells having a large specific gravity. It is intended to do so.
[0010]
[Means for Solving the Problems]
Means for Solving the Problems To achieve the above object, an invention according to claim 1 is provided with a hopper for housing a hydrophobic material on a traveling body capable of traveling in a field, and a drainage culvert and a culvert on the rear side of the traveling body. The excavator for excavating a hydrophobic material supply groove continuous with the torch is formed, and the excavator is pulled in the horizontal direction by traveling of the traveling machine to form a drainage culvert in the field, and the drainage culvert is provided in the drainage culvert. A drainage culvert forming device for filling the hydrophobic material supplied from the inside of the hopper, wherein the conveyor discharges the hydrophobic material from the hopper, and the hydrophobic material discharged by the conveyor is collected and excavated by the excavator. An auxiliary hopper for supplying a hydrophobic material to the hydrophobic material supply groove and the drainage culvert hole, wherein the conveyor has an adjusting unit for suppressing an excessive discharge amount of the hydrophobic material conveyed by the conveyor. And wherein the kick it.
[0011]
With this configuration, in the process of discharging the hydrophobic material accommodated in the hopper by the conveyor and consolidating the same in the auxiliary hopper, an excessive discharge amount of the hydrophobic material conveyed by the conveyor by the adjustment unit is suppressed, that is, the discharge amount is reduced. Can be adjusted and transported collectively in the auxiliary hopper, and the hydrophobic material can be continuously supplied from the auxiliary hopper into the hydrophobic material supply groove and the drainage culvert hole.
[0012]
According to a second aspect of the present invention, in the drainage underdrain forming device according to the first aspect, the auxiliary hopper further includes a paddle that moves in a direction opposite to a discharge direction of the hydrophobic material and stirs the hydrophobic material. Features.
[0013]
With this configuration, it is possible to reliably prevent the bridging phenomenon in which the hydrophobic material in the auxiliary hopper comes into close contact with each other, so that the filling of the hydrophobic material can be further ensured.
[0014]
According to a third aspect of the present invention, in the drainage culvert forming apparatus according to the first or second aspect, the adjusting portion is located above the conveyor and forms a gap for passing a hydrophobic material between the adjusting portion and the upper surface of the conveyor. It is characterized by having an adjusting member. In this case, it is preferable that the adjusting section further includes a bent hanging guide piece that is provided at the discharge section of the conveyor and guides the hydrophobic material passing through the discharge amount adjusting member to the lower auxiliary hopper side. ).
[0015]
With this configuration, the discharge amount of the hydrophobic material discharged from the conveyor can be adjusted by the discharge amount adjustment member. Further, the discharge flow can be rectified by the bent hanging guide pieces and concentrated in the auxiliary hopper.
[0016]
According to a fifth aspect of the present invention, in the drainage culvert forming apparatus according to any one of the first to fourth aspects, the amount of the hydrophobic material concentrated in the auxiliary hopper is detected in the auxiliary hopper. A detection means is provided, and the drive of the conveyor is formed so as to be controllable based on a detection signal detected by the detection means.
[0017]
With this configuration, it is possible to control the driving of the conveyor according to the amount of the hydrophobic material collected in the auxiliary hopper. For example, if the hydrophobic material is excessively collected (accommodated) in the auxiliary hopper, Is detected by the detecting means, and the detection signal is transmitted to the driving unit of the conveyor to stop the driving of the conveyor, whereby the aggregated amount of the hydrophobic material in the auxiliary hopper can be maintained in an appropriate state.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of a drainage culvert forming apparatus of the present invention will be described in detail with reference to the accompanying drawings.
[0019]
First Embodiment FIG. 1 is a schematic side view showing a cross section of a part of a first embodiment of a drainage culvert forming apparatus according to the present invention, FIG. 2 is a schematic plan view of the drainage culvert forming apparatus, FIG. FIG. 2 is a schematic rear view (a) of the drainage culvert forming apparatus and an enlarged cross-sectional view (b) of the drainage culvert.
[0020]
The drainage culvert forming apparatus includes a culvert-forming work vehicle 2 (hereinafter referred to as a work vehicle 2) having a crawler 1 that is a traveling body capable of traveling on a field H, and a hopper 10 mounted on a chassis 3 of the work vehicle 2. A conveyor 20 disposed below the lower discharge port 11 of the hopper 10 and above the rear of the work vehicle 2 to discharge the hydrophobic material such as wood chips T in the hopper 10; Then, an auxiliary hopper 30 for collecting the wood chips T discharged from the conveyor 20 and a rear culvert 4 attached to the rear of the work vehicle 2, specifically, a drain culvert 4 a and the culvert 4 a The main part is constituted by an excavation tool 40 for excavating the hydrophobic material supply groove 4b # connected to.
[0021]
In addition, the drainage culvert forming apparatus has a control section 50 that controls and controls an excessive discharge amount of the wood chips T at the discharge section of the conveyor 20 and a wood chip T collected at the discharge section of the auxiliary hopper 30. A paddle 60 for preventing the bridging phenomenon and a layer of wood chips T which are suspended at the lower part of the auxiliary hopper 30 and are filled in the drain culvert 4 {the drain culvert hole 4a, the hydrophobic material supply groove 4b}. And a layer adjusting plate 70 for adjusting the thickness of the sheet.
[0022]
In this case, the hopper 10 has an opening 12 that opens to substantially the entire area of the chassis 3 of the work vehicle 2, and the lower outlet 11 has a rectangular shape having an upward slope from the front to the rear of the work vehicle 2. Is formed. A conveyor 20 is provided immediately below the lower discharge port 11 of the hopper 10.
[0023]
The conveyor 20 is provided with a driven roller 21 disposed below the lower discharge port 11 of the hopper 10 and an endless belt 23 wound around a driving roller 22 disposed on a rear upper side of the work vehicle 2. It is constituted by a square rod-shaped transport support member 24 which is arranged on the surface of the endless belt 23 at appropriate intervals. A drive motor 26 is connected to the rotation shaft 25 of the drive roller 22.
[0024]
As shown in FIG. 4, the adjusting part 50 disposed on the discharge part side of the conveyor 20 is located above the conveyor 20 and has a clearance between the upper surface of the conveyor, that is, the upper surface of the endless belt 23, for passing the wood chips T. A discharge amount adjusting member 51 made of, for example, steel, which is bent into a substantially V-shape forming S, and is provided at a discharge portion of the conveyor 20 so as to rectify the discharge flow of the wood chips T passing through the discharge amount control member 51. And a bent hanging guide piece 52 made of, for example, synthetic rubber for guiding to the lower auxiliary hopper 30 side. A buffer member 53 is pivotally attached to the front side of the discharge amount adjusting member 51, that is, on the upstream side of the discharge of the wood chips T via a hinge 54 so as to be vertically swingable (see FIG. 4). The stagnation of the wood chips T regulated by the discharge amount adjusting member 51 is temporarily received by the buffer member 53.
[0025]
As described above, the adjusting unit 50 is formed by the discharge amount adjusting member 51 that is bent in a substantially V shape that forms the passage gap S of the wood chip T between the upper surface of the conveyor (the upper surface of the endless belt 23) and the discharge amount adjustment. The wood chips T that have passed through the member 51 are constituted by the bent hanging guide pieces 52 that guide the wood chips T to the lower auxiliary hopper 30 side, so that the wood chips T discharged from the hopper 10 by the conveyor 20 can be adjusted by the discharge amount adjusting member 51. Is regulated by the passage gap S and is conveyed to the discharge section side, so that an excessive discharge amount is suppressed, and the wood chip T that has passed through the discharge amount adjusting member 51 is further bent by the bent hanging guide piece. Since the discharge flow is rectified by 52, an excessive discharge amount is further suppressed and the discharge flow is discharged to the lower auxiliary hopper 30 side. In other words, the amount of wood chips T discharged is determined by the speed of the conveyor 20, but the amount of discharge is increased or decreased regardless of the conveyor speed. , And are discharged to the lower auxiliary hopper 30 side using the bent hanging guide pieces 52. Therefore, the discharge amount of the wood chips T discharged from the conveyor 20 can be adjusted by the discharge amount adjusting member, and the discharge flow can be rectified by the bent hanging guide pieces and collected in the auxiliary hopper 30.
[0026]
The auxiliary hopper 30 is disposed at a position directly below the discharge part of the conveyor 20 via a bellows-like lead-out cylinder 31. In this case, the auxiliary hopper 30 is mounted on the work vehicle 2 via a bracket 32 projecting from the rear end of the work vehicle 2. As shown in FIGS. 3 and 6, the auxiliary hopper 30 is formed in a tapered shape narrowing downward, and the discharge port 33 is excavated by the earth shank 41 of the excavator 40 described later. It is formed in a rectangular shape having a width substantially equal to the supply groove.
[0027]
A paddle 60 that moves (rotates) in the direction opposite to the direction in which the wood chips T are discharged is provided in the auxiliary hopper 30. In this case, the paddle 60 is composed of a rotating shaft 61 driven by a motor (not shown) and a bending rod 62 for stirring protruding from three places in the circumferential direction of the rotating shaft 61. Note that, in this case, the bent bar 62 is formed in a substantially rectangular shape having one end fixed to the rotating shaft 61.
[0028]
Thus, by disposing the paddle 60 which moves (rotates) in the direction opposite to the discharge direction of the wood chips T in the auxiliary hopper 30, the wood chips T collected in the auxiliary hopper 30 are stirred. The bridge phenomenon that occurs when the wood chips T are in close contact with each other can be reliably prevented, and the wood chips T can be discharged smoothly. In particular, when the conveyor speed is increased, the paddles 60 operate to release the clogging of the wood chips T when the wood chips T collected in the auxiliary hopper 30 start to be clogged, which is preferable because the discharge is smoothed. .
[0029]
As shown by a two-dot chain line in FIG. 6, an air nozzle 65 for injecting compressed air toward the discharge port 33 is provided in the auxiliary hopper 30, and the air nozzle 65 is connected to the compressor via a supply pipe 66. (Not shown). Thus, by arranging the air nozzle 65 for injecting the compressed air toward the discharge port 33 in the auxiliary hopper 30, the wood chips T collected in the auxiliary hopper 30 are injected from the air nozzle 65. The air can be smoothly supplied into the drainage culvert 4 by the air flow.
[0030]
Further, in the auxiliary hopper 30, a sensor 90 serving as a detecting means for detecting an excessively aggregated amount (supply amount) of the wood chips T aggregated in the auxiliary hopper 30 is provided. The detection signal detected by the sensor 90 is connected to a controller 100 that controls the driving of the drive motor 26 of the conveyor 20, and the drive motor 26 of the conveyor 20 is controlled based on the detection signal detected by the sensor 90. It has become so.
[0031]
With this configuration, the driving of the conveyor 20 can be controlled in accordance with the amount of the wood chips T collected in the auxiliary hopper 30. For example, the wood chips T are excessively collected in the auxiliary hopper 30 ( In the case of being accommodated), the detection signal is detected by the sensor, and the detection signal is transmitted to the drive motor 26 of the conveyor 20 to stop the driving of the conveyor 20, so that the aggregation amount of the wood chips T in the auxiliary hopper 30 is properly adjusted. State can be maintained.
[0032]
On the other hand, the digging tool 40 includes a pair of plate members for digging a hydrophobic material supply groove 4b (hereinafter, referred to as a wood chip supply groove 4b) attached to a bracket 32 protruding from a rear end of the work vehicle 2. It mainly comprises a shank 41 and a shell-shaped underdrain piercing body 42 connected to the lower end of the shank 41. In addition, at the rear end of the underdrain piercing body 42, a water-absorbing pipe mounting portion 43 is protrudingly provided. If necessary, a water-absorbing pipe is mounted on the water-absorbing pipe mounting portion 43 so that the water-absorbing pipe can be piped into the culvert. It has become. The excavator 40 is provided at a lower portion on the front side of the discharge port 33 of the auxiliary hopper 30.
[0033]
A layer adjusting plate 70 for adjusting the thickness of the filling layer of the wood chips T supplied (filled) into the drainage culvert from the outlet 33 of the auxiliary hopper 30 is provided behind the outlet of the auxiliary hopper 30. It is hanging. In this case, the layer adjusting plate 70 is formed of, for example, a spring steel member having a rectangular shape narrower than the wood chip supply groove 4b excavated by the earth shank 41.
[0034]
When the excavator 40 configured as described above is mounted on the work vehicle 2 and the work vehicle 2 is run on the field H, the excavator 40 is pulled in the horizontal direction, and the drainage culvert 42 The hole 4a is excavated, and the wood chip supply groove 4b connected to the drainage culvert hole 4a is excavated by the earth shank 41. Then, the wood chips T collected in the auxiliary hopper 30 are supplied (filled) from the discharge port 33 into the drain culvert 4, ie, the wood chip supply groove 4b and the drain culvert hole 4a, and are located rearward in the traveling direction. The thickness of the filling layer of the wood chip T is adjusted to be constant by the layer adjusting plate 70 (see FIGS. 1 and 3B).
[0035]
According to the drainage culvert forming apparatus configured as described above, when the wood chips T accommodated in the hopper 10 are discharged by the conveyor 20, the wood chips T are discharged on the conveyor 20 by the adjustment unit 50. The discharge amount of T is adjusted, and the discharge flow is rectified and falls into the auxiliary hopper 30 to be collected. The wood chips T collected in the auxiliary hopper 30 are discharged from the discharge port 33 before being bridged by being stirred by the paddle 60 moving (rotating) in a direction opposite to the discharge direction of the wood chips T. The culvert, that is, the wood chip supply groove 4b and the drainage culvert hole 4a are supplied (filled) into the culvert hole 4a, and the filling layer of the wood chip T is adjusted to a predetermined thickness by the layer adjusting plate 70.
[0036]
When the aggregate amount of the wood chips T aggregated in the auxiliary hopper 30 reaches a predetermined amount or more, the sensor 90 detects the signal, the detection signal is transmitted to the controller 100, and the drive motor 26 of the conveyor 20 stops. Thereby, the discharge by the conveyor 20 is stopped, and the supply of the wood chips T into the auxiliary hopper 30 is stopped. When the aggregate amount of the wood chips T in the auxiliary hopper 30 becomes equal to or less than a predetermined amount, a detection signal from the sensor 90 is transmitted to the controller 100, the drive motor 26 is driven again, and the hopper 10 The inner wood chips T are discharged and discharged (aggregated) into the auxiliary hopper 30. Therefore, the aggregate amount of the wood chips T in the auxiliary hopper 30 is maintained in an appropriate state.
[0037]
Second Embodiment FIG. 7 is a side view showing a wood chip filling amount adjusting unit in a second embodiment of the drainage culvert forming apparatus according to the present invention.
[0038]
The second embodiment is a case where a wood chip filling amount adjusting unit is configured by a pressure reducing roller 80 instead of the layer adjusting plate 70 of the first embodiment. That is, a support bracket 83 that is attached to a mounting bracket 81 projecting from the rear end of the auxiliary hopper 30 so as to be able to rotate (swing) in the vertical direction with a hinge pin 82, This is a case where the pressure reducing roller 80 has a flat shape, that is, a thickness smaller than the width of the wood chip supply groove 4b, which is rotatably connected to the bracket 83 via the pivot shaft 84. In this case, a plurality of (three are shown in the drawing) mounting holes 85a, 85b, 85c are formed at appropriate intervals on the concentric circle of the hinge pin 82 of the mounting bracket 81, and these mounting holes are provided. The height of the pressure-reducing roller 80, that is, the filling of the wood chips T, is achieved by matching any of the holes 85a, 85b, and 85c with a mounting hole (not shown) provided in the support bracket 83 and inserting the connecting pin 86. The thickness of the layer can be adjusted.
[0039]
In the second embodiment, the other parts are the same as those of the first embodiment.
[0040]
According to the drainage culvert molding device in the second embodiment, when the work vehicle 2 is run, the drainage culvert hole 4a is excavated by the culvert drilling body 42, and is connected to the drainage culvert hole 4a by the earth shank 41. The wood chip supply groove 4b is excavated. Then, the wood chips T collected in the auxiliary hopper 30 are supplied (filled) from the discharge port 33 into the drain culvert, ie, the wood chip supply groove 4b and the drain culvert hole 4a, and the crusher located rearward in the traveling direction. The thickness of the filling layer of the wood chips T is adjusted to be constant by the rollers 80.
[0041]
◎ Other Embodiments (1) In the above-described embodiment, the discharge unit is configured so that the adjustment unit 50 bends in a substantially V-shape that forms a passage gap S for the wood chips T between the conveyor unit and the upper surface of the endless belt 23. The case has been described in which the amount adjusting member 51 and the bent hanging guide piece 52 for guiding the wood chips T passing through the discharge amount adjusting member 51 to the lower auxiliary hopper 30 side are provided, but the bent hanging guide piece 52 is not necessarily provided. There is no necessity, and the adjusting section 50 may be constituted only by the discharge amount adjusting member 51.
[0042]
(2) In the above embodiment, the case where the hydrophobic material is wood chips has been described. However, instead of the wood chips, a hydrophobic material such as a shell is similarly discharged from the hopper 10 and collected in the auxiliary hopper 30 to drain water. The culvert 4 may be filled.
[0043]
(3) In the above embodiment, the case where the drainage culvert 4 is filled with a hydrophobic material (wood chips, shells, etc.) has been described. However, the water absorption pipe is attached to the water absorption pipe mounting part 43 protruding from the excavation tool 40. In addition, a water absorption pipe may be laid in the drainage culvert 4 and filled with a hydrophobic material (wood chips, shells, etc.).
[0044]
【The invention's effect】
As described above in detail, according to the present invention, since the configuration is as described above, the following excellent effects can be obtained.
[0045]
(1) According to the first aspect of the present invention, in the process of discharging the hydrophobic material contained in the hopper by the conveyor and consolidating it in the auxiliary hopper, an excessive discharge amount of the hydrophobic material conveyed by the conveyor by the adjusting unit. Can be conveyed collectively in the auxiliary hopper, and the hydrophobic material can be continuously supplied from the auxiliary hopper into the hydrophobic material supply groove and the drainage culvert hole. Therefore, the hydrophobic material can be uniformly filled in the drainage culvert.
[0046]
(2) According to the second aspect of the present invention, the bridge phenomenon in which the hydrophobic material in the auxiliary hopper comes into close contact can be reliably prevented. The filling of the hydrophobic material can be ensured.
[0047]
(3) According to the third aspect of the present invention, since the discharge amount of the hydrophobic material discharged by the conveyor can be adjusted by the discharge amount adjusting member, the drainage is further performed in addition to the above (1) and (2). The filling of the underdrain with the hydrophobic material can be performed quickly and uniformly. In this case, the adjusting section further includes a bent hanging guide piece that is provided at the discharge section of the conveyor and guides the hydrophobic material that has passed through the discharge amount adjusting member to the lower auxiliary hopper side. Since the flow can be rectified and collected in the auxiliary hopper, the filling of the drainage culvert with the hydrophobic material can be performed quickly and uniformly (claim 4).
[0048]
(4) According to the fifth aspect of the invention, the driving of the conveyor can be controlled in accordance with the amount of the hydrophobic material collected in the auxiliary hopper, so that in addition to the above (1) to (3), The aggregated amount of the hydrophobic material in the auxiliary hopper can be maintained in an appropriate state.
[Brief description of the drawings]
FIG. 1 is a schematic side view showing a first embodiment of a drainage culvert forming apparatus according to the present invention in a partial cross section.
FIG. 2 is a schematic plan view of the drainage culvert molding apparatus.
FIG. 3 is a schematic rear view (a) of the drainage culvert molding apparatus and an enlarged cross-sectional view (b) showing the drainage culvert.
FIG. 4 is a side view showing an adjustment unit according to the present invention.
FIG. 5 is a side view showing the auxiliary hopper and the excavator in the present invention in a partial cross section.
FIG. 6 is a sectional view of the auxiliary hopper.
FIG. 7 is a side view showing another embodiment of the layer adjusting section in the present invention.
[Explanation of symbols]
2 Underdrain formation work vehicle (traveling body)
4 Drainage culvert 4a Drainage culvert hole 4b Chip supply groove (hydrophobic material supply groove)
DESCRIPTION OF SYMBOLS 10 Hopper 20 Conveyor 26 Drive motor 30 Auxiliary hopper 40 Excavating tool 41 Shredding shank 42 Underdrain piercing body 50 Adjusting part 51 Discharge amount adjusting member 52 Bending hanging guide piece 60 Paddle 90 Sensor (tip amount detecting means)
100 Controller H Field T Wood chip (hydrophobic material)
S Passage gap

Claims (5)

A traveling machine capable of traveling in a field, equipped with a hopper containing a hydrophobic material, and provided with a drilling tool for excavating a drainage culvert and a hydrophobic material supply groove connected to the culvert on the rear side of the traveling machine, The excavator is pulled in the horizontal direction by running the traveling machine to form a drainage culvert in the field, and a drainage culvert for filling the hydrophobic material supplied from inside the hopper into the drainage culvert. A device,
A conveyor for discharging the hydrophobic material from the hopper,
An auxiliary hopper for supplying the hydrophobic material to the hydrophobic material supply groove and the drainage culvert hole, which aggregates the hydrophobic material discharged by the conveyor and excavates by the excavator,
An apparatus for forming a drainage culvert, wherein the conveyor is provided with an adjusting section for suppressing an excessive discharge amount of a hydrophobic material conveyed by the conveyor. The drainage culvert forming device according to claim 1,
A drainage culvert forming apparatus, further comprising a paddle that moves in a direction opposite to a discharge direction of the hydrophobic material and agitates the hydrophobic material in the auxiliary hopper. The drainage culvert forming device according to claim 1 or 2,
The above-mentioned adjustment part is provided with a discharge amount adjustment member which forms a passage gap of a hydrophobic material between an upper surface of a conveyor and a conveyer, The drainage culvert formation device characterized by the above-mentioned. The drainage culvert forming device according to claim 1 or 2,
The adjustment unit is disposed above the conveyor and forms a discharge gap between the upper surface of the conveyor and a discharge amount adjusting member. The discharge unit of the conveyor is provided with a discharge amount adjustment member, and the discharge amount adjustment member is provided at the discharge unit of the conveyor. A drainage underdrain forming device, comprising: a bent hanging guide piece for guiding a material to a lower auxiliary hopper side. The drainage underdrain formation device according to any one of claims 1 to 4,
Detecting means for detecting the amount of aggregation of the hydrophobic material collected in the auxiliary hopper is provided in the auxiliary hopper, and the driving of the conveyor can be controlled based on a detection signal detected by the detecting means. A drainage culvert forming device characterized by comprising:

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