JP2016171759A - Culvert formation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form a dug furrow at a vertical port passage formation position by a lower part of a plow member scooping mud in a field and discharging the mud to a side in travelling of a travel machine body, to form a plunged groove and a vertical port passage opened in the dug furrow, and thereby to suppress blocking of an opening of the plunged groove and vertical port passage by the mud on the field surface.SOLUTION: The culvert formation device includes: a bullet body 21 arranged in a lower part of a plunge beam 9 and capable of forming a culvert H; an expansion member 22 capable of forming a vertical port passage T opened on a ground surface M by expanding a side face of a plunged groove S formed while extended in a vertical direction in field mud W by the plunge beam; a movement mechanism 8 moving a machine frame 5 in a right/left direction orthogonal to a travel direction of a travel machine body 1; a pivotal fitting mechanism 6 connecting the machine frame to the travel machine body so as to rotate horizontally; and a plow member 31 arranged on the machine frame and capable of forming a dug furrow U at a vertical port passage formation position D by scooping the field mud and discharging the mud to a side.SELECTED DRAWING: Figure 18

Description

  The present invention relates to a culvert forming apparatus that forms a culvert in, for example, paddy field or field soil of a field.

  Conventionally, as this type of culvert formation device, a mounting frame is connected to a traveling machine body by a connecting mechanism, a machine frame is provided on the mounting frame so as to be pivotable horizontally by a pivoting mechanism, and a penetration beam is oscillated in the traveling direction in the machine frame. Vertically operably installed, a bullet body that can form a culvert is placed under the penetration beam, a shaking mechanism that swings the penetration beam is provided, and the machine frame is An expansion member that extends a side surface of the penetration trace groove formed to extend in the vertical direction and can form a vertical opening that opens to the ground surface is provided, and an expansion mechanism that forcibly expands the expansion member is provided. Structures are known.

  Therefore, in fields such as paddy fields, it consists of a surface layer, a layer below it, and a core soil layer below it. To break the cultivator layer to form a penetration groove, and to form a culvert hole in the core soil layer below it with bullets and to expand the side of the penetration groove with an expansion member and open it to the ground surface This makes the water in the field reach the underdrain from the entrance groove and the opening of the longitudinal opening, which improves the drainage and breathability of the field by the vertical opening and the underdrain. At the same time, the growth of deep roots such as paddy rice will be improved.

  Also, in this case, when the undercarriage and the vertical opening path are formed by the penetration beam and the expansion member, even if the traveling body is steered and the traveling direction of the traveling body is bent, It is pulled by the traveling machine body while turning horizontally by the pivoting mechanism, and therefore the traveling machine body is stopped even in the position near the inner peripheral corner of the farm scene, and the mounting frame and the machine frame are raised or lowered in the stopped state. It will not be operated, it will run continuously around the traveling machine body and it will continuously perform the forming work, so that the work efficiency will be improved and the underdrain and the penetration trace groove will be continuously This will improve the drainage and breathability of the field.

JP2015-19613

  However, in the case of the above-described conventional structure, the penetration groove and the vertical opening are formed on the ground surface of the field with a relatively small cross-sectional area. The opening may be blocked by mud on the surface of the field, and the distance from the ground surface of the field to the culvert may be relatively long, which may reduce the drainage and breathability of the field. ing.

  SUMMARY OF THE INVENTION The present invention is intended to solve such inconveniences. Among the present inventions, the invention according to claim 1 is that the mounting frame is connected to the traveling machine body by the connecting mechanism, and the machine frame is connected to the mounting frame. Is pivoted horizontally by the pivoting mechanism, the penetration beam is vertically installed in the machine frame so as to be swingable in the traveling direction, and a bullet body capable of forming a culvert is disposed below the penetration beam. A swing mechanism for swinging the penetration beam is provided, and the side surface of the penetration groove formed in the machine frame extending in the vertical direction in the field soil is expanded by the penetration beam and opened to the ground surface. And an expansion mechanism for forcibly expanding the expansion member is provided, a main body frame is provided on the mounting frame, and the machine frame is provided on the main body frame, The machine frame is moved in the left-right direction perpendicular to the traveling direction of the traveling machine body between the mounting frame and the main body frame. A moving mechanism is provided, and the pivot attachment mechanism is provided between the main body frame and the machine frame to connect the machine frame to the traveling machine body so that the machine frame can be swung horizontally. A culvert forming apparatus is provided with a plowing member that can be discharged laterally and can form a digging groove at a vertical opening formation position.

  According to a second aspect of the present invention, a pre-processing member is provided at a front position in the traveling direction of the penetration beam, which can discharge the field scattered matter such as sawdust scattered in the field scene to the side of the machine frame. The invention according to claim 3 is characterized in that a side grooved body capable of grooving a side groove in the field scene is provided at a forward position in the traveling direction of the plow member. It is what.

  The invention described in claim 4 is characterized in that a retraction mechanism is provided that can change the position of the plow member between a working position and a retreat position, and the invention according to claim 5 is characterized in that A pregrooving body capable of grooving a pregroove in the field scene is provided at a position forward of the penetration beam in the traveling direction.

  The invention described in claim 6 is characterized in that a rolling element capable of setting the formation height of the culvert is provided in the machine frame so as to be adjustable in height. The present invention is characterized in that a stabilizing member capable of suppressing the lateral deflection of the plow member is provided.

  As described above, according to the present invention, the mounting frame is connected to the traveling machine body by the connecting mechanism, and the machine frame is provided on the mounting frame so as to be pivotable horizontally by the pivoting mechanism. The incoming beam is vertically installed so that it can freely swing in the direction of travel, a bullet body that can form a culvert is placed under the penetration beam, and a shaking mechanism that shakes the penetration beam is provided. An expansion member that can extend the side surface of the penetration trace groove formed by extending in the vertical direction in the field soil by the penetration beam to form a vertical opening that opens to the ground surface is forcibly expanded. Since the extended mechanism to be operated is provided, the penetration beam oscillates in the traveling direction as the traveling aircraft progresses, penetrates into the field soil to form a penetration trace groove, and continuously culverts by the bullet The expansion member formed at the rear position in the traveling direction of the penetration beam is formed by the expansion mechanism. An expansion operation is performed, the penetration trace groove formed by extending in the vertical direction in the field soil by the penetration beam is expanded to form a vertical groove-shaped vertical opening that opens to the ground surface, and The main body frame is provided on the mounting frame, and a pivot attachment mechanism is provided between the main body frame and the machine frame to connect the machine frame to the traveling machine body so as to be able to turn horizontally. Even when traveling around the aircraft and performing the formation of the culvert and vertical port using the penetrating beam and the expansion member, even if the traveling aircraft is steered and the traveling direction of the traveling aircraft is bent, It is pulled by the traveling machine body while turning horizontally by the pivoting mechanism, and therefore the traveling machine body is stopped even in the position near the inner peripheral corner of the farm scene, and the mounting frame and the machine frame are raised or lowered in the stopped state. No longer operate, run continuously around the traveling aircraft Next, the formation work of the penetration trace groove, the vertical port path and the culvert will be performed. At this time, the machine frame is placed between the mounting frame and the main body frame in the left-right direction perpendicular to the traveling direction of the traveling machine body. As the machine mechanism is moved closer to the paddy field's buttock, it turns at a position close to the buttock and a position along the vicinity of the inner peripheral corner of the field scene. It is possible to continuously perform the drilling trace groove, vertical channel and underdrain, and further, the soil of the field is scraped to the machine frame and discharged to the side, and the excavation groove is formed at the vertical channel formation position. Since the plow member is formed, the lower part of the plow member scoops up the soil in the field and discharges it to the side as the traveling aircraft progresses to form a digging groove at the position of forming the vertical opening The opening trace groove and the vertical opening are opened in the excavation groove so that the opening of the penetration groove and the vertical opening is the surface of the field. The water on the surface of the field will reach the culvert through the digging groove and the opening of the vertical channel through the digging groove, from the ground surface of the field to the culvert. The distance of water is shortened, and the drainage and air permeability of the field can be maintained well, so that drainage is improved, water management, dry paddy fields, microbial propagation is activated, and deep roots of paddy rice etc. The growth of can be improved.

  In the invention according to claim 2, the pretreatment member capable of discharging the field scattered matter such as sawdust scattered in the field scene in the machine frame to the side in the traveling direction of the penetration beam is provided. Since it is provided, field scattered matter such as sawdust and stock scattered in the field can be discharged sideways by the pretreatment member, and the formation resistance of the penetration trace groove by the penetration beam can be reduced. In addition, it is possible to improve the workability of forming the penetration trace groove, and in the invention according to claim 3, the side groove can be grooved in the field scene at a forward position in the advancing direction of the plow member. Since the side groove cut body is provided, the side groove cut body advances while rotating and cuts the side groove in the field scene in the forward direction of the plowing member. First, the side groove groove cuts the side groove. Grooving and scraping the soil of the side groove where the plowing member is grooved, and discharging it to the side. It is possible to suppress the traction force of the traveling machine body increases it is possible to reduce grooving resistance due, it is possible to improve the Mizoho workability.

  In the invention according to claim 4, since the retraction mechanism is provided that can change the posture of the plow member between the work position and the retreat position, the plow member is moved away from the work position when not in use or moved. The groove can be retracted to the retracted position, and the grooving workability can be improved. In the invention according to claim 5, the pre-grooved groove in the farm scene at the front position in the traveling direction of the penetration beam. Since the pre-grooving body is provided so that the pre-grooving body can be rotated and rotated, the pre-groove is cut in the field and the penetration beam is moved in the direction of travel after the pre-groove. Since the penetration trace groove is formed by performing the oscillating operation, the formation resistance of the penetration trace groove can be reduced, and the formation workability of the penetration trace groove can be improved.

  Further, in the invention described in claim 6, since the wheel body capable of setting the formation height of the undercarriage is provided on the machine frame so as to be adjustable in height, from the stable running of the machine frame and the surface of the undercarriage. In the invention according to claim 7, since the stabilizing member capable of suppressing the lateral deflection of the plowing member is provided, the stabilizing member can be set to the side of the plowing member. The runout can be suppressed, and the ditching operation can be performed satisfactorily.

1 is an overall side view of a first embodiment of the present invention. It is a partial side view of the first embodiment of the present invention. It is a fragmentary top view of the 1st example of an embodiment of the invention. It is a fragmentary sectional side view of the first embodiment of the present invention. It is a fragmentary longitudinal cross-sectional view of the first embodiment of the present invention. It is a fragmentary longitudinal cross-sectional view of the first embodiment of the present invention. It is a fragmentary longitudinal cross-sectional view of the first embodiment of the present invention. It is a partial expanded side sectional view of the first embodiment of the present invention. It is a partial expansion longitudinal cross-sectional view of the example of 1st Embodiment of this invention. It is a partial expanded plane sectional view of the first embodiment of the present invention. It is a partial plane sectional view of the example of the 1st embodiment of the present invention. It is a fragmentary longitudinal cross-sectional view of the first embodiment of the present invention. It is a fragmentary top view of the 1st example of an embodiment of the invention. It is an explanation plane sectional view of the use state of the example of the 1st embodiment of the present invention. It is a description longitudinal cross-sectional view of the use condition of the 1st example of embodiment of this invention. It is a description top view of the use condition of the example of 1st Embodiment of this invention. It is a description top view of the use condition of the example of 1st Embodiment of this invention. It is a description top view of the use condition of the example of 1st Embodiment of this invention. It is work explanatory drawing of the example of 1st Embodiment of this invention. It is a fragmentary longitudinal cross-sectional view of the second embodiment of the present invention.

  1 to 20 show an embodiment of the present invention, FIGS. 1 to 19 show a first embodiment, and FIG. 20 shows a second embodiment.

  In the first embodiment shown in FIGS. 1 to 19, reference numeral 1 denotes a traveling machine body. In this case, a tractor is used, and a mounting 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. A main body frame 4 is provided on the mounting frame 3, and a machine frame 5 is connected to the main body frame 4 by a pivot mechanism 6 so as to be pivotable horizontally.

  In this case, as shown in FIGS. 1, 2, and 3, the connecting mechanism 2 includes the left and right lower links 2 a and 2 a, the upper link 2 b, the lifting links 2 c and 2 c, and the hydraulic arm 2 d. A three-point link mechanism composed of 2d is provided, and the mounting frame 3 is connected to the traveling machine body 1 by this three-point link mechanism. In this case, the mounting frame 3 is composed of upper and lower guide rods 3a and 3a and left and right vertical rods 3b and 3b. The upper link 2b is pivotally connected to the upper guide rod 3a, the lower links 2a and 2a are pivotally connected to the lower guide rod 3a, and the hydraulic arm 2d of the three-point link mechanism is formed. The mounting frame 3 is provided so as to be movable up and down by swinging up and down 2d.

  In this case, a movement guide mechanism 7 capable of moving and guiding the main body frame 4 in the left-right direction orthogonal to the traveling direction of the traveling machine body 1 is provided between the attachment frame 3 and the main body frame 4. A moving mechanism 8 is provided for moving 5 in the left-right direction intersecting the traveling direction of the traveling machine body 1.

  In this case, as shown in FIG. 5, as the movement guide mechanism 7, the mounting frame 3 is formed in a square frame shape composed of upper and lower guide rods 3a and 3a and left and right vertical rods 3b and 3b. A pair of left and right guide rolls 7a and 7a are disposed between the guide rods 3a and 3a, and the main body frame 4 is moved to the left and right by sliding fitting between the guide rolls 7a and 7a and the guide rods 3a and 3a. It is provided so as to be movable in the direction.

  In this case, as the moving mechanism 8, as shown in FIGS. 2 and 5, the moving motor 8a is attached to the main body frame 4, and the moving gear 8b is attached to the main shaft of the moving motor 8a. A rack tooth body 8c that meshes with 8b is attached and fixed to a guide rod 3a on the upper part of the mounting frame 3, and the moving motor 8a is rotated forward and backward to engage the moving gear 8b and the rack tooth body 8c. 4 and the machine casing 5 are configured to move in the left-right direction.

  In this case, as the pivot attachment mechanism 6, as shown in FIGS. 2 and 3, a pair of bifurcated upper and lower female connecting pieces 6 a and 6 a are attached to the rear part of the main body frame 4 in the moving direction, and the machine frame 5 is advanced. A male connecting piece 6b is formed at the front of the direction, the male connecting piece 6b is fitted between a pair of upper and lower female connecting pieces 6a and 6a, and the pivot shaft 6c is vertically connected to the female connecting pieces 6a and 6a and the male connecting piece 6b. The machine frame 5 is connected to the main body frame 4 so as to be pivotable horizontally around the pivot shaft 6c.

  9 is a penetrating beam, and 10 is a shaking mechanism. In this case, as shown in FIGS. 2, 3, and 4, the middle part of the swinging arm 11 can be freely swung by the fulcrum shaft 12 in the machine frame 5. The main shaft 13 is mounted on the machine frame 5 so as to be rotatable by bearings 13a and 13a, and a drive mechanism 14 for rotating the main shaft 13 is provided. In this case, the mounting frame 3 is provided with an upper rotating shaft 14a and a lower shaft. The rotary shaft 14b is horizontally mounted by bearings 14c and 14c, and the upper rotary shaft 14a and the lower rotary shaft 14b are drivingly connected by a transmission mechanism 15 including a chain, and the power take-out shaft 1a of the tractor as the traveling machine body 1 and the upper rotary shaft 14a. Are connected by a universal joint 16, and the lower rotary shaft 14b and the main shaft 13 are connected by a drive transmission mechanism 17 comprising a bevel gear. In this case, as shown in FIG. Install a gear 17a at the rear end. Thus, the gear 17b is engaged with the gear 17b attached to the lower end portion of the turning shaft 6c, and the gear 17c is attached to the upper end portion of the turning shaft 6c. The gear 17c is attached to the front end portion of the main shaft 13. The gear 17d is engaged, rotational power is transmitted from the lower rotary shaft 14b to the main shaft 13 via the gears 17a and 17b, the rotary shaft 6c, and the gears 17c and 17d, and the swing arm 11 and the penetration beam 9 In this case, as shown in FIGS. 7, 8, 9, and 10, an eccentric shaft portion 18 a is provided between the bearings 13 a and 13 a of the main shaft 13 as shown in FIGS. 7, 8, 9, and 10. The center axis of the eccentric shaft portion 18a is eccentric by the amount of eccentricity ε with respect to the rotation axis of the main shaft 13, and the bearing 18c on the upper side of the connecting member 18b is fitted to the eccentric shaft portion 18a, and the lower side of the connecting member 18b The bearing 18d of the swing arm 1 1 is inserted, the swing arm 11 is guided to swing up and down by the guide rolls 11b and 11b and the guide pieces 5a and 5a, and the swing arm 11 is supported by the rotation of the main shaft 13 via the eccentric ring mechanism 18 as a fulcrum shaft. 12, the penetrating beam 9 is vertically attached to the rear end of the swinging arm 11, the housing 19 is attached to the lower end of the penetrating beam 9, and the hook-shaped connecting member 20 is used. A bullet-shaped bullet body 21 is connected.

  Thus, as the traveling machine body 1 advances, the penetration beam 9 oscillates in the traveling direction and penetrates into the field soil W to form the penetration trace groove S and the bullet body 21 forms a culvert H. It will be.

  Reference numeral 22 denotes an expansion member, and reference numeral 23 denotes an expansion mechanism. In this case, as shown in FIGS. 2 and 4, the expansion member 22 is disposed at a longitudinal opening forming position D as a rear position in the traveling direction of the penetration beam 9. In addition, the penetration beam 9 is provided so as to be able to form a vertical opening T that opens to the ground surface M by extending one side surface of the penetration trace groove S formed by extending in the vertical direction of the field soil W. 11, 13, and 14, the mechanism 23 moves the expansion member 22 from the non-expanded position K in the rearward direction in the direction of travel, and in this case, θ = approximately 60 ° from the rearward direction in the forward direction. The configuration is such that a forced expansion operation is intermittently performed at the expansion position G in the lateral direction.

  In this case, a bearing cylinder 24 is provided vertically at the rear part of the machine casing 5, and a shaft-like body 25 is provided vertically on the bearing cylinder 24 so as to be rotatable in the longitudinal direction. A bearing piece 26 is formed on the bearing cylinder 24. The lower end portion of the shaft-like body 25 is attached to the upper portion of the expansion member 22, and the lower portion of the expansion member 22 is rotatably supported by the bearing piece body 26 by a support pin 26 a, and the expansion member 22 has a blade-plate-like protruding shape. A body 22a is formed extending vertically, and an intermittent expansion mechanism 23a is used as the expansion mechanism 23. In this case, a speed reduction mechanism 27 is attached to the machine casing 5, and the input shaft 27a and the main shaft 13 of the speed reduction mechanism 27 are connected. Are connected by a joint 13b, a turning arm 28 is attached to the output shaft 27b of the speed reduction mechanism 27, a pushing roll 29 is implanted in the turning arm 28, and the upper end portion of the shaft-like body 25 can be pressed by the pushing roll 29. The engaging claw member 30 is horizontally projected.

  13 and 14, the output shaft 27b of the speed reduction mechanism 27 is rotated by the rotation of the main shaft 13, and the turning arm 28 is horizontally turned in the direction of the arrow by the rotation of the output shaft 27b. The roll 29 engages and pushes the engagement claw member 30, and this pushing force forcibly rotates the expansion member 22 vertically by a predetermined angle. As a result, as shown in FIGS. When the push roll 29 is separated from the engaging claw member 30 by further rotation, the blade-like protrusion 22a of the expansion member 22 contacts the side surface of the penetration trace groove S of the penetration beam 9. The protrusion 22a of the expansion member 22 is intermittently reciprocated by a predetermined angle so as to return and rotate in contact, and the penetration trace groove S formed by extending the vertical direction of the field soil W by the penetration beam 9. To form a vertical channel T that opens to the ground surface M. That.

  Reference numeral 31 denotes a plow member, which is disposed at a rear position in the advancing direction of the expansion mechanism 23 as shown in FIGS. 2, 3, and 4, and the machine frame 5 is formed by the support machine frame 5b and the work machine frame 5c. The work machine frame 5c is pivotally attached to the support machine frame 5b, the tip of the U-shaped attachment arm 32 is pivotally attached to the lower part of the work machine frame 5c by the support shaft 33, and the upper part of the work machine frame 5c is provided by the pin 34. A nut body 35 is pivotally mounted, a screw 36 is screwed onto the nut body 35, and the nut body 35 is rotated by rotating a handle 37, so that the screw 36 is vertically movable. The lower end portion of the screw 36 is pivotally attached to the middle portion by a pin 34a, and the plowing member 31 is attached to the mounting arm 32 by a bolt 38. The tip end portion of the plowing member 31 is formed in a tapered cut-off portion 31a. The rear part is a discharge part 31b twisted so as to discharge the cut soil to the side. It is formed.

  Reference numeral 39 denotes a posture holding mechanism, which is configured to be able to hold the no-load posture of the machine frame 5 in the straight direction of the traveling machine body 1 as shown in FIGS. A pair of left and right mounting pieces 4a and a pair of left and right mounting pieces 5d provided on the machine frame 5 are mounted on the rear portion in the direction.

  Reference numeral 41 denotes a position fixing mechanism. A plate-like fixing member 41b is attached to the main body frame 4 by pins 41a so as to be rotatable forward and backward, and a fixing member 41b to which the fixing member 41b can be detachably fitted to the machine frame 5. A groove-like fitting groove 41c having substantially the same groove width as that of the plate is formed. As shown in FIG. 2, the fixing member 41b is reversed from the rearward to the forward direction around the pin 41a. The fixing member 41b is detached from the groove 41c to allow horizontal rotation of the machine casing 5, thereby allowing the horizontal rotation of the machine casing 5 to be selectively allowed or prevented.

  Reference numeral 42 denotes a pre-processing member, which is disposed at a forward position in the direction of travel of the penetration beam 9 as shown in FIGS. 2, 3, and 6, and has a plurality of discharge members radially arranged on the mounting disk 42a and the mounting disk 42a. 42b... Are attached by bolts 42c, and a radiating cover 43 is disposed above the pretreatment member 42, and is driven to rotate by the drive mechanism 14.

  44 and 45 are a pair of left and right side groove cut bodies, which are disposed at the forward position in the direction of travel of the plowing member 31, and as shown in FIG. 12, several blade portions 44a and 45a are formed in the outer peripheral portion, A chassis 46 is attached to the lower end of the work machine frame 5c, an axle 47 is rotatably supported on the axle 46, and a pair of left and right side groove cuts 44 and 45 are attached to both left and right ends of the axle 47 with a predetermined interval. Is configured.

  As shown in FIG. 2, the retraction mechanism 48 is configured so that the posture of the plow member 31 can be changed between a work position P and a retreat position Q. In this case, the work machine frame 5c is supported on the support machine frame 5b. 48a is pivotally attached, and two insertion holes 48b and 48b are formed in the support machine frame 5b, and an insertion hole 48c is formed in the work machine frame 5c, so that the engagement can be inserted into the insertion holes 48b and 48c. A pin 48d is formed, and the working machine frame 5c is fixed at the working position P by inserting the locking pin 48d into the insertion holes 48b and 48c, and the locking pin 48d is removed from the insertion holes 48b and 48c. Is inserted into the other insertion holes 48b and 48c so that the work machine frame 5c is pulled up to the retracted position Q and fixed.

  Reference numeral 49 denotes a pre-grooved body. As shown in FIG. 7, a mounting piece 49a is suspended from the machine frame 5, and the pre-grooving body 49 is rotatably mounted on the mounting piece 49a by an axle 49b. The pre-groove F is formed at a forward position in the traveling direction.

  Reference numerals 50 and 50 denote rolling elements. In this case, as shown in FIGS. 3 and 4, mounting arms 50 a and 50 a are arranged at both the left and right positions of the machine frame 5 so that the height can be adjusted by the height adjustment mechanism 50 b. The rolling elements 50 and 50 are grounded to the ground surface M, etc., so that the stable running of the machine frame 5 and the formation height from the surface of the underdrain H are set.

Reference numeral 51 denotes a stabilizing member. In this case, as shown in FIG. 15, the stabilizing member 51 contacts the contact plate surface 51 a that can contact the field scene a and the inner surface U ₁ of the dug groove U. A contactable side plate surface 51b is formed, a support piece 52 projects from the rear surface of the mounting arm 32, a connecting piece 53 is formed on the stabilizing member 51, and the support piece 52 and the connecting piece 53 are connected to the connecting pin. 54, and the stabilization member 51 is attached to the attachment arm 32 so as to be slightly swingable.

  Since the first embodiment of the present embodiment has the above-described configuration, the penetration beam 9 is penetrated into the field soil W while swinging in the traveling direction to form the penetration trace groove S as the traveling machine body 1 advances. At the same time, a culvert H is continuously formed by the bullet body 21 at the rearward position of the housing 19 and the expansion member 22 disposed at the rearward position of the penetration beam 9 is expanded by the expansion mechanism 23. A penetration groove 9 formed by extending in the vertical direction of the soil in the field W by the penetration beam 9 to form a longitudinal groove T that opens to the ground surface M; and Since the pivot mechanism 6 for connecting the machine frame 5 to the traveling machine body 1 so as to be able to turn horizontally is provided between the main body frame 4 and the machine frame 5, the traveling machine body 1 extends over substantially the entire field a. The undercarriage H and the vertical opening T are formed by the penetration beam 9 and the expansion member 22. As shown in FIG. 19, even when the traveling machine body 1 is steered and the traveling direction of the traveling machine body 1 is bent and changed, the machine frame 5 is pulled by the traveling machine body 1 while horizontally turning by the pivot mechanism 6. The traveling machine body 1 can also be stopped at the position close to the inner peripheral corner of the farm scene a, or the mounting frame 3, the main body frame 4 and the machine frame 5 can be raised or lowered in the stopped state. Thus, the traveling machine body 1 is continuously traveled to continuously form the penetration trace groove S, the vertical opening T, and the culvert H.

  At this time, since a moving mechanism 8 is provided between the mounting frame 3 and the main body frame 4 to move the machine frame 5 in the left-right direction orthogonal to the traveling direction of the traveling machine body 1, as shown in FIG. By moving the machine frame 5 close to the paddy field's buttock, the trace of penetration S continuously while turning at a position close to the buttock and a position along the inner peripheral corner of the farm scene a, The vertical channel T and the underdrain H can be formed. Further, the soil of the farm scene a is scraped to the machine frame 5 and discharged to the side to form the digging groove U at the vertical channel formation position D. Since the plow member 31 that can be formed is provided, the lower part of the plow member 31 scoops up the soil of the farm scene a and discharges it to the side as the traveling machine body 1 advances, and the digging groove is formed in the vertical opening formation position D. U is formed, and the penetration trace groove S and the vertical opening T are opened in the digging groove U, so that the penetration trace groove S and the vertical opening T are formed. It is possible to suppress the opening from being blocked by mud in the field a, and the water in the field a reaches the underdrain H from the opening of the penetration groove S and the vertical channel T through the digging groove U. The distance from the ground surface M of the farm scene a to the underdrain H is also shortened, so that the drainage and breathability of the field can be maintained well, the drainage is improved, the water management, and the paddy field is made dry. In addition, activation of microbial propagation and growth of roots such as paddy rice can be improved.

  In addition, although the lower end of the said vertical port T is set suitably, generally it is desirable to set it in the proximity position of the culvert H which does not reach the culvert H, because the culvert H and the vertical tract T are This is because the soil on the inner surface of the vertical port T may flow into the underdrain H and block the underdrain H when in the communicating state.

  In this case, the pivot mechanism 6 is provided with a pivot shaft 6c for connecting the main body frame 4 and the machine frame 5 so as to be horizontally pivotable. Therefore, as shown in FIGS. The machine frame 5 can be easily connected and the structure can be simplified. In this case, the no-load posture of the machine frame 5 is set in the straight traveling direction of the traveling machine body 1 shown in FIG. Since the holdable posture holding mechanism 39 is provided, it is possible to hold the no-load posture of the machine frame 5 in the non-lightning formation working state or the like in the straight running direction, for example, the machine frame 5 from the farm scene a. When the machine casing 5 is in a free state after being lifted away, unexpected swinging in the left-right direction with respect to the center position as the straight traveling direction of the machine casing 5 can be suppressed, and safety can be improved. In this case, the main body frame 4 and the machine frame 5 are used as the posture holding mechanism 39. Since the pair of right and left posture holding springs 40 and 40 are installed between the two, the structure of the posture holding mechanism 39 can be simplified, and when the machine frame 5 swings in the left and right direction, One of the posture holding springs 40, 40 forcibly causes the posture of the machine frame 5 to be restored and swiveled in the traveling direction of the traveling machine body 1, and the presence of the pivoting mechanism 6 exists. It is possible to suppress the unintentional lateral swing of the machine casing 5 due to the above.

  In this case, as shown in FIG. 6, the pretreatment member 42 capable of discharging the field scattered matter E such as sawdust scattered in the field a in the machine frame 5 to the side is provided in the forward direction of the penetration beam 9. Since it is provided at the position, the scattered field E such as sawdust and stock scattered in the field a can be discharged to the side by the pre-processing member 42, and in this case, the mounting disk 42 a is rotated by the drive mechanism 14. Discharging the field scattered matter E such as swarf and stock scattered in the farm scene a to the side by the pretreatment member 42 that is driven and includes a plurality of discharge members 42b that are radially attached to the mounting disk 42a. The formation resistance of the penetration trace groove S by the penetration beam 9 can be reduced, and the formation workability of the penetration trace groove S can be improved. In this case, as shown in FIG. Side grooves R and R are formed in the above-mentioned field a at the forward position of the plowing member 31 in the traveling direction. Since the pair of left and right side groove cut bodies 44 and 45 that can be cut are provided, the side groove cut bodies 44 and 45 are rotated along with the pair of left and right sides in the field scene a in the forward direction of the plowing member 31 in the traveling direction. First, a pair of left and right side grooves R, R is cut by the side groove cut bodies 44, 45, and a pair of left and right side grooves R, in which the plowing member 31 is cut. The soil between the Rs will be scooped and discharged to the side, reducing the grooving resistance by the plowing member 31 and suppressing the increase in the traction force of the traveling machine body 1 and improving the grooving workability. can do.

  In this case, a retracting mechanism 48 capable of changing the position of the plow member 31 between the working position P and the retracted position Q is provided. In this case, as shown in FIG. 2, the machine frame 5 is supported by the support machine frame 5b and the work machine frame 5c. The retracting mechanism 48 that is formed and can change the posture of the work machine frame 5c to the work position P and the retreat position Q with respect to the support machine frame 5b is provided. The work machine frame 5c can be pulled up and rotated to the retracted position Q by removing the holes from the insertion holes 48b and 48c, so that the work posture and the retracted posture can be easily changed and the grooving workability can be improved. In this case, a pre-groove body 49 capable of grooving the pre-groove F in the farm scene a is provided at the forward position of the penetration beam 9 in the traveling direction. Advancing while rotating around, cut the pre-groove F in the farm scene a, Since the penetration beam 9 is penetrated after the groove F while swinging in the traveling direction to form the penetration trace groove S, the formation resistance of the penetration trace groove S can be reduced. The workability of forming the grooves S can be improved.

Further, the machine frame 5 is provided with rolling bodies 50 and 50 capable of setting the height of the undercarriage H so that the height can be adjusted. In this case, the mounting arms 50a and 50a are arranged at both the left and right positions of the machine frame 5. The adjustment mechanism 50b is provided so as to be adjustable in height, and the rolling elements 50, 50 are disposed on the mounting arms 50a, 50a, so that the machine frame can be obtained by grounding the rolling elements 50, 50 to the ground surface M such as a paddle surface. 5 can be set, and the formation height from the surface of the culvert H can be set. In this case, since the stabilizing member 51 capable of suppressing the lateral deflection of the plowing member 31 is provided, the stabilizing member 51 is provided. Can suppress the lateral vibration of the plowing member 31, can perform the digging work well, and can come into contact with the field scene a on the stabilizing member 51 that can suppress the horizontal deflection of the plowing member 31. Of the contact plate surface 51a and the excavated groove U Can abut the side abutment plate surface 51b on the side surface U ₁ is formed, projecting supporting piece 52 on the rear surface of the mounting arm 32, to form a connecting piece 53 to the stabilizing member 51, the connecting piece and the supporting piece 52 53 is connected by a connecting pin 54, whereby the stabilizing member 51 is attached to the mounting arm 32 so as to be slightly swingable. Therefore, the stabilizing member 51 can suppress the lateral swing of the plowing member 31, and the digging operation can be performed. It can be done well.

  The second embodiment in FIG. 20 shows another example structure. In this case, in the first embodiment, a pair of left and right side groove cut bodies 44 and 45 are employed, but in the second embodiment, one on one side. The side groove cut body 44 is used.

  Also in this second embodiment, substantially the same effect as in the first embodiment can be obtained.

  The present invention is not limited to the above-described embodiment, and the traveling machine body 1, the coupling mechanism 2, the pivot attachment mechanism 6, the movement mechanism 8, the vibration mechanism 10, the expansion member 22, the expansion mechanism 23, the plow member 31, and the like. Are designed with appropriate changes.

  Further, in the above embodiment, the plowing member 31 is arranged at the rear position in the traveling direction of the penetration beam 9 and the expansion member 22 as the vertical opening forming position D, and the vertical opening T is formed. The soil in the field at the mouth formation position D is scooped up by the plowing member 31 and discharged sideways to form the digging groove U. However, the plowing member 31 is moved in the direction of travel of the expansion member 22. First, the soil in the field is scooped up by the plowing member 31 and discharged to the side at the vertical opening formation position D where the vertical opening T is formed, and the excavation groove U is formed. After forming the catching groove U, the expansion member 22 may be configured to form the vertical opening T.

  As described above, the intended purpose can be sufficiently achieved.

W Underground soil S Penetration groove H Underdrain M Ground surface T Longitudinal channel D Vertical channel formation position P Work position Q Retraction position F Pre-groove a Field scene U Digging groove E Field scattered matter R Side groove 1 Traveling machine body 2 Coupling mechanism 3 Mounting frame 4 Body frame 5 Machine frame 6 Pivoting mechanism 8 Moving mechanism 9 Penetration beam 10 Shaking mechanism 21 Bullet body 22 Expansion member 23 Expansion mechanism 31 Plow member 42 Pre-processing member 44 Side groove body 45 Side groove body 48 Retraction mechanism 49 Pre-groove body 50 Rolling wheel 51 Stabilizing member

Claims (7)

  A mounting frame is connected to the traveling machine body by a connecting mechanism, and a machine frame is provided on the mounting frame so as to be horizontally pivotable by a pivoting mechanism, and a penetration beam is vertically installed on the machine frame so as to be freely swingable in a traveling direction. A bullet body capable of forming a culvert is provided below the penetration beam, and a shaking mechanism for shaking the penetration beam is provided, and the machine frame extends vertically in the field soil by the penetration beam. An expansion member that extends a side surface of the penetration mark groove formed to form a vertical opening that opens to the ground surface, and an expansion mechanism that forcibly expands the expansion member is provided. A moving mechanism for providing a main body frame on the frame, providing the machine frame on the main body frame, and moving the machine frame between the mounting frame and the main body frame in a left-right direction orthogonal to a traveling direction of the traveling machine body The pivot is connected between the main body frame and the machine frame so as to be pivotable horizontally with respect to the traveling machine body. The mechanism is provided, underdrain forming apparatus characterized by comprising providing a formable likes member photo groove vertically opening passage forming position is discharged to the side taking scooping the field of soil 該機 frame.   The pre-processing member which can discharge | emit the field scattered matter such as sawdust scattered in the field scene to the side in the machine frame is provided at the front position in the traveling direction of the penetration beam. Underdrain formation device.   3. A culvert forming apparatus according to claim 1, wherein a side groove cutting body capable of cutting a side groove in the field scene is provided at a forward position in the advancing direction of the plow member.   4. A culvert forming apparatus according to any one of claims 1 to 3, further comprising a retracting mechanism capable of changing a posture of the plow member between a work position and a retracted position.   The underdrain formation according to any one of claims 1 to 4, wherein a pregrooving body capable of grooving a pregroove in the field scene is provided at a forward position in the traveling direction of the penetration beam. apparatus.   The undercarriage forming device according to any one of claims 1 to 5, wherein a rolling element capable of setting the undercarriage height of the undercarriage is provided on the machine frame so as to be adjustable in height.   The culvert forming apparatus according to any one of claims 1 to 6, further comprising a stabilizing member capable of suppressing lateral vibration of the plow member.