JP4016331B2 - Underdrain formation device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a culvert forming apparatus used for forming a culvert in, for example, paddy field or soil of a field.
[0002]
[Prior art]
[0003]
Japanese Utility Model Publication No. 59-23074 [0004]
Conventionally, as this type of culvert formation device, a machine frame is connected to a traveling machine body by a connecting mechanism, and a penetration beam is vertically installed on the machine frame so as to be freely swingable in a moving direction by a shaking mechanism, and is placed below the penetration beam. A structure in which bullet-shaped culvert formation bodies capable of forming culverts are disposed in the soil is known.
[0005]
Paddy fields and the like are composed of a surface layer, a lower layer, and a lower core soil layer, and a penetration beam is penetrated into the tiller layer, the core layer and the core soil layer to break the tiller. Underneath the core soil layer, bullet holes will be formed by bullet-shaped underdrains.
[0006]
[Problems to be solved by the invention]
However, in the case of the above-described conventional structure, the bullet-shaped culvert forming body is pulled by the traveling body to form the culvert, so in the case of hard soil of the core soil layer, the traction resistance becomes excessive, and the culvert formation workability decreases. Or the durability of each part of the mechanism may be reduced.
[0007]
[Means for Solving the Problems]
SUMMARY OF THE INVENTION The present invention aims to solve such inconveniences, and in the invention according to claim 1, the machine frame is connected to the traveling machine body by a connecting mechanism, and the machine frame is provided. The penetration beam is vertically arranged so as to be swingable in the advancing direction by a shaking mechanism, and a culvert formation body capable of forming a culvert in the soil is disposed below the penetration beam. A culvert forming apparatus is characterized in that a skeleton is provided in a lower part in the forward direction of the skeleton and the culvert-forming body is horizontally disposed by a support shaft at a position behind the penetration of the skeleton.
[0008]
According to a second aspect of the present invention, the penetration beam is formed by a pair of left and right beam bodies, and the casing is provided in the lower part of the one beam body in a downwardly moving direction, and the casing is penetrated. It is characterized in that the culvert forming body is laid horizontally at a rear position by a support shaft, and the other beam body is arranged so as to be shifted to the front position in the advancing direction with respect to one beam body, According to a third aspect of the present invention, the tip of the casing is arranged at a position below the lower rotation outer peripheral locus of the undercarriage forming body, and the fourth aspect of the present invention is characterized in that: The invention is characterized in that the machine frame is provided with rolling wheels capable of rolling on the ground surface.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
1 to 9 show an embodiment of the present invention, FIGS. 1 to 7 show a first embodiment, and FIGS. 8 and 9 show a second embodiment.
[0010]
In the first embodiment shown in FIGS. 1 to 7, reference numeral 1 denotes a traveling machine body. In this case, a tractor is used, and the machine frame 3 can be moved up and down by a three-point link type connecting mechanism 2 at the rear part of the traveling machine body 1. Concatenated.
[0011]
4 is a penetrating beam, and 5 is a swinging mechanism. In this case, the penetrating beam 4 is formed by a pair of left and right beam bodies 4a and 4b. 7, the main shaft 8 is pivotally mounted on the machine frame 3 by bearings 8a and 8a, and the power take-off shaft 9 of the traveling machine body 1 and the main shaft 8 are connected by a universal joint 10. An eccentric ring mechanism 11 is interposed between the swing arm 6 and the main shaft 8. That is, as the eccentric ring mechanism 11, the eccentric shaft portion 11a is formed on the bearings 8a and 8a of the main shaft 8, and the eccentric shaft portion 11a is provided with the eccentric shaft portion 11a. The upper bearing 11c of the connecting member 11b is fitted, the base shaft 6a of the swinging arm 6 is fitted into the lower bearing 11d of the connecting member 11b, and the swinging arm 6 is inserted into the guide rolls 6b and 6b and the guide pieces 3a and 3a. Is guided by swinging up and down by means of an eccentric ring mechanism 11 by rotation of the main shaft 8. Thus, the swing arm 6 is swung up and down around the fulcrum shaft 7, and a pair of left and right beam bodies 4a and 4b as a penetration beam 4 are vertically mounted on the rear end of the swing arm 6, and this one beam A casing 12 is provided at the lower part of the body 4a so as to be lowered forward in the traveling direction, and a bracket K is attached to a position behind the penetration of the casing 12, and a plurality of protrusions 13b are provided on the outer peripheral surface of the cylindrical body 13a. The formed culvert forming body 13 is provided so as to be rotatable by the support shaft 14, the other beam body 4 b is shifted from the one beam body 4 a in the forward position in the traveling direction, and the upper end of the housing 12 is further disposed. The portion is arranged above the axis of the support shaft 14 of the culvert forming body 13.
[0012]
In this case, the tip of the casing 12 is arranged at a position below the lower rotation outer peripheral locus of the protrusion 13b of the culvert forming body 13.
[0013]
Thus, as the traveling machine body 1 advances, the penetration beam 4 composed of a pair of left and right beam bodies 4a and 4b penetrates into the soil W while oscillating in the advancing direction, so that two rows of penetration trace grooves S · While forming S, the culvert forming body 13 in the position behind the penetration of the cadaver 12 continuously forms the culvert H while rotating by the support shaft 14.
[0014]
Reference numeral 15 denotes a wheel, and mounting arms 16a and 16a are disposed at both left and right positions of the machine frame 3 so that the height can be adjusted by a height adjusting mechanism 16b, and the wheel 15 is grounded to the ground surface M such as a paddy surface. In addition, it is configured so that the stable running of the machine casing 3 and the formation height from the surface of the culvert H can be set.
[0015]
Since the first embodiment of the present embodiment has the above-described configuration, the penetration beam 4 composed of a pair of left and right beam bodies 4a and 4b is penetrated into the soil W while oscillating in the traveling direction as the traveling machine body 1 advances. As a result, the penetration trace groove S is formed and the culvert formation body 13 in the position behind the puncture of the skeleton 12 forms the culvert H continuously. At this time, the core soil layer rubbed by the skeleton 12 The soil is smoothly transferred obliquely upward by the upper rotating surface of the culvert forming body 13, so that the traction resistance of the culvert forming body 13 at the position behind the penetration of the casket 12 can be reduced, and the culvert forming workability is improved. As well as improving the durability of each part of the mechanism.
[0016]
In this case, the penetration beam 4 is formed by a pair of left and right beam bodies 4a and 4b, and the casing 12 is provided in the lower part of one beam body 4a in a forwardly descending direction, and the rearward position of the penetration of the casing 12 In addition, the undercarriage 13 is horizontally disposed by the support shaft 14 and the other beam body 4b is shifted from the one beam body 4a in the advancing direction, so that the traveling machine body proceeds. Accordingly, after the other beam body 4b forms the penetration groove trace S, one beam body 4a forms the penetration groove trace S, and due to the space F of the penetration groove trace S formed by the other beam body 4b. The formation of the penetration groove mark S by the one beam body 4a, the scooping by the casing 12, and the transfer of the soil by the culvert forming body 13 can be performed satisfactorily. The housing 1 is located below the locus. Therefore, there is a gap B between the lower rotating outer periphery locus of the undercarriage 13 and the scooping bottom surface of the housing 12, and the soil contacts the upper rotating outer periphery locus, thereby forming the underdrain. The body 13 can be smoothly rotated in a direction in which the soil that is squeezed by the housing 12 and is transported obliquely upward is further transported obliquely upward, so that the culvert formation operation can be performed smoothly. In this case, since the upper end portion of the casing 12 is disposed above the axis of the support shaft 14 of the culvert forming body 13, the soil crushed by the casing 12 is transferred to the upper part of the rotating outer periphery locus of the culvert forming body 13. Therefore, the culvert formation body 13 can be smoothly rotated and the soil can be transferred well, and in this case, the wheel 15 capable of rolling on the ground surface M is provided on the machine frame 3. Because it is provided, stable running of the machine frame 3 and the surface of the underdrain H It is possible to set the Narudaka of.
[0017]
The second embodiment shown in FIGS. 8 and 9 shows another example structure. In this case, the underdrain forming body 13 is formed by forming a plurality of recesses 13c on the outer peripheral surface of the cylindrical body 13a.
[0018]
Even in the second embodiment, the same effects as those in the first embodiment can be obtained.
[0019]
The present invention is not limited to the above embodiment, and the forms and structures of the penetration beam 4, the beam bodies 4a and 4b, the vibration mechanism 5, the eccentric ring mechanism 11, the casing 13, and the undercarriage forming body 13 Etc. are designed with appropriate changes.
[0020]
【The invention's effect】
As described above, according to the first aspect of the present invention, the penetration beam penetrates into the soil while swinging in the traveling direction to form a penetration trace groove as the traveling body moves. At the same time, the culvert formation body at the position behind the penetration of the skeleton forms a culvert continuously. At this time, the soil crushed by the skeleton is smoothly transferred obliquely upward by the upper rotation surface of the culvert formation body. For this reason, the traction resistance of the culvert formation body at the position behind the penetration of the skeleton can be relaxed, the culvert formation workability can be improved, and the durability of each part of the mechanism can be enhanced.
[0021]
According to a second aspect of the present invention, the penetration beam is formed by a pair of left and right beam bodies, and the casing is provided in the lower part of one of the beam bodies in a forwardly descending direction, and the casing is drilled. Since the culvert forming body is horizontally laid by the support shaft at the entrance / rear position, and the other beam body is shifted to the front position in the traveling direction with respect to the one beam body, One beam body forms a penetration groove trace after the other beam body forms a penetration groove trace, and the penetration groove by one beam body is formed by the space of the penetration groove trace formed by the other beam body. It is possible to satisfactorily perform the formation of traces and the soaking by the culvert and the transfer of soil by the culvert.
[0022]
In the invention according to claim 3, since the tip of the casing is disposed at a position below the lower rotating outer periphery locus of the undercarriage forming body, the lower rotating outer periphery locus of the undercarriage forming body and the housing are arranged. There is a gap between the bottom surface of the scooping and the soil contacts the upper rotation outer peripheral locus, whereby the culvert forming body is crushed by the housing and is transported obliquely upward. And the undercarriage formation work can be performed smoothly. In the invention according to claim 4, the upper end of the above-mentioned housing is connected to the axis of the shaft of the undercarriage forming body. Since it is arranged at the upper side, the soil crushed by the culvert will be transferred to the upper part of the rotation outer periphery locus of the culvert forming body, the culvert forming body will be smoothly rotated, and the soil will be transferred well. In the invention according to claim 5, the machine frame has a ground. Since Menjo formed by providing a rollable carrier rollers, and it is possible to set the forming height from the stable running and the surface of the culvert of the machine frame.
[0023]
As described above, the intended purpose can be sufficiently achieved.
[Brief description of the drawings]
FIG. 1 is an overall side view of a first embodiment of the present invention.
FIG. 2 is a partial side sectional view of a first embodiment of the present invention.
FIG. 3 is a partial plan view of the first embodiment of the present invention.
FIG. 4 is a partial plan sectional view of a first embodiment of the present invention.
FIG. 5 is a partial side view of the first embodiment of the present invention.
FIG. 6 is a partial cross-sectional view of the first embodiment of the present invention.
FIG. 7 is a partially enlarged plan sectional view of a first embodiment of the present invention.
FIG. 8 is a partially enlarged cross-sectional view of a second embodiment of the present invention.
FIG. 9 is a partial rear view of the second embodiment of the present invention.
[Explanation of symbols]
W soil H culvert S penetration groove mark M ground surface 1 traveling machine body 2 connection mechanism 3 machine frame 4 penetration beam 4a beam body 4b beam body 5 shaking mechanism 13 culvert formation body 14 support shaft 15 wheel

Claims (5)

The machine frame is connected to the traveling machine body by the connection mechanism, and the penetration beam is vertically installed in the machine frame so as to be freely swingable in the traveling direction by the shaking mechanism, and a culvert can be formed in the soil below the penetration beam. A culvert forming body is provided, and a cascading body is provided at the lower part of the penetration beam so as to be lowered forward in the direction of travel. A culvert forming apparatus characterized by being provided. The penetration beam is formed by a pair of left and right beam bodies, and the casing is provided at the lower part of the one beam body in a forwardly descending direction, and the culvert formation body is supported at a position behind the penetration of the casing. 2. A culvert forming apparatus according to claim 1, wherein the undercarriage is arranged so as to be freely rotatable, and the other beam body is arranged so as to be shifted to the front position in the advancing direction with respect to one beam body. The undercarriage forming apparatus according to claim 1 or 2, wherein a tip end portion of the underbody is arranged at a position below a lower rotation outer peripheral locus of the undercarriage forming body. The culvert forming apparatus according to any one of claims 1 to 3, wherein an upper end portion of the skeleton is disposed above an axis of a support shaft of the culvert forming body. The undercarriage forming apparatus according to any one of claims 1 to 4, wherein the machine frame is provided with rolling wheels capable of rolling on the ground surface.

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