JP2014223032A - Field trench digger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve trench digging work efficiency by continuously turning a traveling machine body and continuously performing trench digging work, and forming a trench with a favorable draining function by forming the dug trench continuously.SOLUTION: A fitting frame 3 is connected to a traveling machine body 1 by a connecting mechanism 2, and a machine frame 4 is connected to the fitting frame. The machine frame includes trenching bodies 6 and 7 capable of trenching a field surface M, and a plow member 10 capable of scooping field soil at a position rearward the advancing direction of the trenching bodies and discharging it laterally. The machine frame is connected horizontally turnably to the fitting frame with a pivot mechanism. The machine frame further includes a position fixing mechanism 32 capable of selectively allowing and inhibiting the horizontal turning of the machine frame.

Description

  The present invention relates to a field ditcher that forms drainage grooves in a field such as a paddy field.

  Conventionally, as this type of field grooving machine, the machine frame is connected to the traveling machine body by a connecting mechanism, the machine frame is provided with a grooving body that can be grooved in the field scene, and the machine frame has a rearward position in the traveling direction of the grooving body. A plowing member that can pick up the soil in the field and drain it to the side is provided, and the soil at the rear of the groove cutting body is scooped up by the plowing member and discharged to the side, and a drainage groove is provided in the field. The thing of the structure which performs the ditching operation to form is known.

Japanese Patent No. 3787666

  However, in the case of the above-described conventional structure, when the vehicle runs around the entire surface of the farm scene and performs the grooving operation with the grooved body and the plowing member, the grooved body and the plowing member are integrally disposed on the traveling machine body. For example, at the position near the inner peripheral corner of the farm scene, it is not possible to steer the traveling aircraft and travel in a turning direction as it is, but at a position before the inner peripheral corner, Once the traveling machine is stopped, the grooved body and plow are lifted and separated from the field by the connecting mechanism, and the traveling machine is steered and turned in this state. The body and the plowing member are brought into contact with the farmland in a descending manner, and then the traveling machine body is run and the grooving work is performed by the groove cutting body and the plowing member. Ca n’t do the grooving work, Grooves drilling work efficiency is trenching with drops is not continuously formed, it has the disadvantage that drainage function may be decreased.

  The present invention aims to solve these disadvantages, and the invention according to claim 1 is characterized in that a mounting frame is connected to a traveling machine body by a connecting mechanism, and a machine frame is connected to the mounting frame. A grooving body that can be grooved in a farm scene, and a plowing member that scoops up the field soil at the rear position in the advancing direction of the grooving body and discharges it to the side. Field grooving characterized in that a machine frame is connected to the mounting frame by a pivoting mechanism so as to be able to turn horizontally, and a position fixing mechanism capable of selectively allowing or preventing horizontal turning of the machine frame is provided. In the machine.

  According to a second aspect of the present invention, the pivot mechanism is provided with a turning vertical axis for connecting the mounting frame and the machine frame so as to be horizontally rotatable. The invention according to Item 3 is characterized in that an attitude holding mechanism capable of holding the no-load attitude of the machine frame in a non-grooving work state in the traveling direction of the traveling machine body is provided, The invention according to claim 4 is characterized in that a pair of left and right posture holding springs are installed between the mounting frame and the machine frame as the posture holding mechanism.

  According to a fifth aspect of the present invention, a pretreatment member capable of discharging the field scattered matter such as sawdust scattered in the field scene to the side in a forward direction of the groove cutting body is provided rotatably. A drive mechanism for rotating the pretreatment member is provided.

  As described above, according to the present invention, the mounting frame and the machine frame are towed by traveling of the traveling machine body, and the lower part of the grooved body and the lower part of the plow member provided on the machine frame are It travels while penetrating into the farm scene, and the grooving body advances while rotating by traveling of the traveling machine body to cut the groove in the farm scene, and the soil between the grooving is the plow member behind it As a result, a groove digging operation for digging a groove in the field is performed. At this time, the machine frame is connected to the mounting frame so as to be pivotable horizontally by a pivoting mechanism. Because it is configured, when traveling around the entire surface of the farm scene and performing the grooving work with the grooved body and the plow member, the traveling body is steered to change the traveling direction of the traveling body. Even if it turns, the frame is pulled by the traveling aircraft while turning horizontally by the pivot mechanism. Therefore, the traveling machine body is not stopped even in the vicinity of the inner peripheral corner of the farm scene, and the grooved body and the plowing member are not lifted and lowered in the stopped state, and the traveling machine body is continuously rotated. It can run and continuously perform grooving work, so that the grooving work efficiency can be improved and the grooved groove is continuously formed, forming a groove with good drainage function And a position fixing mechanism capable of selectively allowing or preventing horizontal rotation of the machine frame is provided, so that the no-load posture of the machine frame in a non-grooving operation state can be fixed. Unexpected swinging of the machine frame due to the presence of the pivot attachment mechanism can be prevented, and safety can be improved.

  In the invention described in claim 2, since the pivot mechanism is provided with a turning vertical axis for connecting the mounting frame and the machine frame so as to be horizontally rotatable, the mounting frame and the machine frame The connection can be easily performed and the structure can be simplified. In the invention according to claim 3, the no-load posture of the machine frame in the non-grooving work state is set to Since a posture holding mechanism capable of holding in the advancing direction is provided, it is possible to hold the no-load posture of the machine frame in a non-grooving work state, and to suppress unexpected swinging of the machine frame. In the invention according to claim 4, a pair of right and left posture holding springs are installed between the mounting frame and the machine frame as the posture holding mechanism. Therefore, the structure of the posture holding mechanism can be simplified.

  In the invention according to claim 5, the pretreatment member capable of discharging the field scattered matter such as sawdust scattered in the field scene to the side at the forward position of the groove cutting body in the traveling direction is rotatable. Provided, and a drive mechanism for rotating the pretreatment member is provided, so that the field scattered matter such as sawdust and stock scattered in the field is discharged to the side by the pretreatment member, and the groove cutting resistance and The grooving resistance of the plow member can be reduced.

1 is an overall side view of an embodiment of the present invention. It is a fragmentary sectional side view of the example of an embodiment of the invention. It is a fragmentary top view of the example of an embodiment of the invention. It is a partial longitudinal cross-sectional view of the embodiment of this invention. It is a fragmentary longitudinal cross-sectional view of the embodiment of this invention. It is a fragmentary top view of the example of an embodiment of the invention. It is a use state figure of the example of an embodiment of the invention.

  1 to 7 show an embodiment of the present invention. Reference numeral 1 denotes a traveling machine body, in this case, a tractor. A mounting frame 3 is connected to a rear portion of the traveling machine body 1 by a connecting mechanism 2. The machine frame 4 is connected by a pivoting mechanism 5 so as to be horizontally rotatable.

  In this case, as shown in FIG. 1 and FIG. 2, the connecting mechanism 2 includes the left and right lower links 2a and 2a, upper links 2b and 2b, lifting links 2c and 2c, and hydraulic arms 2d and 2d at the rear of the traveling machine body 1. The three-point link mechanism is provided. The three-point link mechanism connects the mounting frame 3 to the traveling machine body 1, and the mounting frame 3 can be moved up and down by the vertical swing of the hydraulic arms 2d and 2d of the three-point link mechanism. It is provided and configured.

  In this case, as shown in FIGS. 2 and 3, as the pivot attachment mechanism 5, a bifurcated female connecting piece 5 a is attached to the rear part in the advancing direction of the mounting frame 3, and a male part is attached to the front part in the advancing direction of the machine frame 4. The connecting piece 5b is formed, the male connecting piece 5b is fitted to the female connecting piece 5a, and the mounting frame 3 and the machine frame 4 are connected to each other between the female connecting piece 5a and the male connecting piece 5b so as to be freely pivotable. The swivel longitudinal axis 5c is vertically arranged.

  6 and 7 are a pair of grooved bodies, and in this case, as shown in FIG. 2 and FIG. 4, the outer peripheral portion has several blade portions 6a and 7a cut out, and the machine frame 4 is a support machine frame. 4a and a work machine frame 4b, which includes a chassis 8 attached to the lower end of the work machine frame 4b, an axle 9 rotatably supported on the chassis 8, and can be grooved into the field scene M on both left and right ends of the axle 9. A pair of grooving bodies 6 and 7 are attached at a predetermined interval, and the traveling body 1 travels while the grooving bodies 6 and 7 are rotated along with each other, thereby grooving two strips R in the field M. It is configured to do.

  Reference numeral 10 denotes a plow member. In this case, as shown in FIG. 2, the width of the tip of the plow member 10 is formed to be substantially the same as the width between the grooved bodies 6 and 7, and the tip of the plow member 10 is tapered. A rear portion is formed in the cutting portion 10a and a rear portion is formed in a discharging portion 10b that is twisted so as to discharge the cutting soil to the side, and a tip end portion of the U-shaped mounting arm 11 is supported on a lower portion of the work machine frame 4b. The nut body 14 is pivotally attached to the upper part of the work machine frame 4 b by the pin 13 and is rotatably provided. The screw body 15 is screwed to the nut body 14, and the nut body 14 is rotated by the rotation of the handle 16. The screw 15 is provided so as to be movable up and down, the lower end portion of the screw 15 is pivotally attached to the middle portion of the mounting arm 11 by a pin 17, and the plowing member 10 is attached to the mounting arm 11 by a bolt 18. The handle 10 is moved by the forward / reverse rotation of the handle 16. Adjustably arranged, soil while being grooved to Article by grooves Setsutai 6.7 by the traveling of the traveling body 1 is scraping by the rear of the plow member 10 configured to discharge to the side.

Reference numeral 19 denotes a stabilizing member. In this case, as shown in FIGS. 2 and 3, the stabilizing member 19 is formed on the abutting plate surface 19 a that can abut on the field M and the inner side surface W ₁ of the dug groove W. A pair of left and right angle members made of abuttable side abutting plate surfaces 19b are formed, a support piece 20 is projected on the rear surface of the mounting arm 11, a connecting piece 21 is formed on the stabilizing member 19, and a support piece 20 and the connecting piece 21 are connected by a connecting pin 22, whereby the stabilizing member 19 is attached to the mounting arm 11 so as to be slightly swingable.

  Reference numeral 23 denotes a pretreatment member, and reference numeral 24 denotes a drive mechanism. In this case, as shown in FIG. 5, the upper rotary shaft 25 and the lower rotary shaft 26 are horizontally mounted on the mounting frame 3, and the upper rotary shaft 25 and the lower rotary shaft 26 are mounted. Are connected by a gear mechanism 27, the power take-off shaft 1a of the tractor as the traveling machine body 1 and the upper rotating shaft 25 are connected by a universal joint 28, and a mounting disk 23a is mounted on the lower rotating shaft 26, and the mounting disk 23a is radiated. In this case, three discharge members 23b... Are attached by bolts 23c, and a cover member 29 is attached to the attachment frame 3.

  Reference numeral 30 denotes an attitude holding mechanism, which is configured to be able to hold the no-load attitude of the machine frame 4 in a non-grooving work state in the traveling direction of the traveling machine body 1, in this case, as shown in FIGS. As a posture holding mechanism 30, a pair of left and right postures can be held between the mounting frame 3 and the machine frame 4 so that the no-load posture of the machine frame 4 can be held in the traveling direction of the traveling machine body 1 shown in FIG. The springs 30a and 30a are constructed and constructed.

  Reference numeral 31 denotes a weight. In this case, as shown in FIGS. 2 and 3, two weights 31 are provided on the machine frame 4 so as to be freely detachable.

  Reference numeral 32 denotes a position fixing mechanism. A plate-like fixing member 32b is rotatably attached to the mounting frame 3 by pins 32a so that the fixing member 32b can be detachably fitted to the machine frame 4. A concave groove-like fitting groove 32c having the same groove width as that of the plate width is formed, and the fixing member 32b is rotated around the pin 32a toward the rear in the advancing direction as shown in the imaginary line position in FIG. The machine frame 4 is fixed in position by fitting the fixing member 32b in the groove 32c to prevent horizontal rotation of the machine frame 4, or the fixing member 32b is centered on the pin 32a as shown by the broken line in FIG. Reversely moving forward in the direction of travel, the fixing member 32b is detached from the fitting groove 32c, and the horizontal rotation of the machine frame 4 is allowed, whereby the horizontal rotation of the machine frame 4 can be selectively allowed or blocked. doing.

  Since this embodiment is configured as described above, as shown in FIG. 7, the mounting frame 3 and the machine frame 4 are towed by traveling of the traveling machine body 1, and the lower portions of the grooved bodies 6, 7 provided in the machine frame 4. And the lower part of the plowing member 10 travels while penetrating into the farm scene M, and by running of the traveling machine body 1, the groove cutting bodies 6, 7 travel along with the rotation and advance into the farm scene M with two strip grooves R. Then, the soil between the two grooves is scraped by the rear plowing member 10 and discharged to the side. As a result, the work of digging the groove W in the field scene M is performed. In this case, since the machine frame 4 is connected to the mounting frame 3 by a pivot mechanism 5 so as to be able to turn horizontally, the traveling machine body 1 extends over substantially the entire field M as shown in FIG. When the grooving operation is performed by the groove cutting bodies 6 and 7 and the plowing member 10, the traveling machine body 1 is steered. Even if the traveling direction of the traveling machine body 1 is bent and changed, the machine frame 4 is horizontally turned to the left and right of the center position C as the traveling direction of the traveling machine body 1 shown in FIG. Therefore, the traveling machine body 1 is not stopped even in the position near the inner peripheral corner of the farm scene M, and the grooved bodies 6 and 7 and the plowing member 10 are not raised and lowered in the stopped state. It is possible to continuously run around the traveling machine body 1 and continuously perform the grooving work, and accordingly, the grooving work efficiency can be improved and the grooved groove W is continuously formed, A groove W having a good drainage function can be formed.

  In this case, the pivot mechanism 5 is provided with a turning longitudinal axis 5c for connecting the mounting frame 3 and the machine frame 4 so as to be horizontally rotatable, so that as shown in FIG. Can be easily connected and the structure can be simplified. In this case, the no-load posture of the machine frame 4 in the non-grooving work state is shown in FIG. Since the posture holding mechanism 30 capable of holding in the direction is disposed, the posture of the machine frame 4 in the non-grooving operation state can be held at no load. For example, the machine frame 4 is lifted away from the farm scene M. Then, when the machine casing 4 is in a free state, it is possible to suppress an unexpected left-right swing around the central position C as the traveling direction of the machine casing 4 shown in FIG. In this case, as the posture holding mechanism 30, the mounting frame 3 and the upper Since a pair of left and right posture holding springs 30a and 30a are installed between the machine frame 4, the structure of the posture holding mechanism 30 can be simplified, and the machine frame 4 swung in the left and right directions. At this time, one of the pair of left and right posture holding springs 30a and 30a forcibly causes the posture of the machine casing 4 to be restored and swiveled in the traveling direction of the traveling machine body 1, so that the pivot Unexpected lateral swing of the machine casing 4 due to the presence of the landing mechanism 5 can be suppressed.

  Further, in this case, as shown in FIG. 5, a pre-processing member 23 capable of discharging the field scattered matter E such as sawdust scattered in the field scene M to the side in the forward direction of the groove cutting bodies 6 and 7 is provided. Since the rotation mechanism is provided and the drive mechanism 24 for rotating the pretreatment member 23 is provided, the field scattered matter E such as sawdust and stock scattered in the farm scene M is discharged to the side by the pretreatment member 23. The grooving resistance of the grooving bodies 6 and 7 and the grooving resistance of the plowing member 10 can be reduced.

In this case, since the weight 31 is detachably attached to the machine frame 4, the machine frame 4 can be prevented from rising due to the grooving resistance of the plowing member 10, and the digging by the plowing member 10 can be improved. In this case, since the abutting plate surface 19a of the stabilizing member 19 advances while abutting on the field M close to the groove W excavated, the height of the plowing member 10 is stabilized. It is possible to prevent the plowing member 10 from scooping up the field mud and increase the traction force depending on the state of the field soil, and to obtain an action of keeping the depth of the groove W constant. Since the abutting plate surface 19a is located behind the plowing member 10 in the traveling direction, the entanglement of the field scattered matter E such as sawdust scattered in the field scene M is reduced, and the side contact of the stabilizing member 19 is further reduced. the inner surface W ₁ of the plate surface 19b digging taken grooves W those Since contact is possible, lateral vibration of the plowing member 10 and the groove cut bodies 6 and 7 can be suppressed, and the groove digging work can be performed satisfactorily.

  In this case, as shown in FIG. 2, since the position fixing mechanism 32 capable of selectively allowing or preventing horizontal turning of the machine frame 4 is provided, the machine frame 4 is not loaded in the non-grooving state. The posture can be fixed, the unexpected swing of the machine frame 4 due to the presence of the pivot attachment mechanism 5 can be prevented, and safety can be improved.

  In the above embodiment, the groove cutting bodies 6 and 7 are a pair of groove cutting bodies. However, the groove cutting bodies 6 and 7 are formed as blade-shaped groove cutting blades, or only one groove cutting body. In addition, in the above embodiment, a pair of groove cut bodies 6 and 7 and a plowing member 10 are arranged in one set, but two or more sets are provided. It can also be.

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

DESCRIPTION OF SYMBOLS M Field scene E Field scattered matter 1 Traveling machine body 2 Connection mechanism 3 Mounting frame 4 Machine frame 5 Pivoting mechanism 5c Turning vertical axis 6 Groove body 7 Groove body 10 Plowing member 23 Pretreatment member 24 Drive mechanism 30 Posture holding mechanism 30a Posture holding spring 32 Position fixing mechanism

Claims (5)

  A mounting frame is connected to the traveling machine body by a connecting mechanism, the machine frame is connected to the mounting frame, a grooved body that can be grooved in a field scene is provided on the machine frame, and the grooved body is provided on the machine frame. A plowing member is provided that can pick up the field soil at a rear position in the advancing direction and discharge it to the side. The machine frame is connected to the mounting frame by a pivoting mechanism so that the machine frame can be pivoted horizontally. A field ditcher comprising a position fixing mechanism capable of selectively allowing or preventing turning.   2. The field ditcher according to claim 1, wherein the pivot mechanism is provided with a turning vertical axis for connecting the mounting frame and the machine frame so as to be horizontally rotatable.   The field ditcher according to claim 1 or 2, further comprising an attitude holding mechanism capable of holding an unloaded attitude of the machine frame in a non-grooving operation state in a traveling direction of the traveling machine body. .   The field ditcher according to claim 3, wherein a pair of left and right posture holding springs are provided between the mounting frame and the machine frame as the posture holding mechanism.   A pre-processing member capable of discharging the field scattered matter such as sawdust scattered in the field scene to the side is rotatably provided at a forward position in the advancing direction of the grooved body, and a drive mechanism for rotating the pre-processing member is provided. The field ditcher according to any one of claims 1 to 4, wherein