KR20200031553A - Grass remover, paddy weeding working machine and paddy weeding method using it - Google Patents

Abstract

When weeding, we provide a pull remover that can be removed from the removal body according to the movement of the removal body before weeds are strongly entangled in the removal body to rotate to remove weeds. The pull eliminator 56 is provided with a removal body 560 having a plurality of filigree bodies 566 radially installed at regular intervals in the circumferential direction around the axis of rotation 561, and a surface formed with a rotation trajectory of the filigree body 566. It is disposed along, and in contact with the rotating ancestor 566, the contact portion thereof is removed from the pool having a cut-out portion 567b formed to move relatively from the base toward the ship portion according to the rotational movement of the ancestor 566 A member 567 is provided.

Description

Grass remover, paddy weeding working machine and paddy weeding method using it

The present invention relates to a grass removal machine, a paddy weeding working machine and a paddy weeding method using the same. In detail, when weeding the paddy field, the weeds remaining on the removal body that rotates to scrape and remove weeds, before being strongly entangled in the removal body, can be removed from the removal body according to the movement of the removal body, using It relates to a paddy weed working machine and a paddy weeding method.

In cultivation of rice, weeding, which removes weeds growing in the middle of the day or in the front of the daytime when they are not growing significantly, is a very important task in which the faults affect the yield of rice. Recently, a mechanical weeding operation is mainly performed using a mower or a herbicide dedicated machine installed in a traveling device (or management device). As an example of such a mower, there is, for example, a padding weeding machine of Patent Document 1 proposed by the inventor of the present application.

This conventional paddy weeding machine is disposed at the front of the traveling device and the traveling device, has a height adjustment mechanism, and is installed at a position between the jaws of the rice stock in the weeding operation, thereby cutting up and down the weeds floating on the water surface. Pull cutting equipment having a plurality of cutters rotating in the direction, and disposed in front of the pull cutting equipment, the rotational trajectory of the filigree provided in a radial shape is disk-shaped, and the removal body is inclined at a required angle such that the traveling direction side falls relative to the horizontal direction (Refer to FIGS. 5 and 6 of Patent Document 1) It is provided with a paste removal device for scraping and removing weeds around the crested tree by scraping the entire surface.

Japanese Patent Publication No. 2016-208873

The conventional paddy weeding machine is useful not only between tanks, but also because it is possible to efficiently perform daytime weeding, which is said to be particularly difficult to weed by machines. However, as it was repeatedly used in the field, it was found that there is room for improvement in the following points.

That is, if the weeds on the front surface are scraped by rotating the removal body having the striatum, the weeds escape from the striatum and float on the surface or in the water and are cut by a grass cutting device, and some of the weeds remain bent and not removed by the striatum. And, as the work progressed, many weeds were strongly related to the striatum, and it was easy to interfere with the rotation of the removal body, and eventually, weeds could not be scraped off.

Therefore, it was necessary to stop the working machine during the weeding operation and to remove the weeds from the removal body. By the way, in order to increase the efficiency of the work, the weeding work machine is provided with a large number of removal bodies corresponding to the intertidal direction, and it takes considerable effort and time to remove the weeds. There was a dilemma that made things difficult.

The present invention has been devised in view of the above points, and when weeding a non-weed, the weeds remaining in the removal body to be rotated to scrape and remove the weeds are strongly entangled with the removal body, and are removed according to the movement of the removal body. It is an object of the present invention to provide a grass remover, a weeding machine for using it, and a method for weeding the paddy so that it can be removed.

(1) In order to achieve the above object, the pull eliminator of the present invention, the removal body having a plurality of striatums installed radially at regular intervals in the circumferential direction around the axis of rotation, and the surface formed by the trajectory of the striatum It is disposed along, and is provided with a pull-removing member having a cut-out portion that is in contact with the rotating moving body, and the contacting portion is formed to move relatively from the base toward the ship portion in accordance with the rotating movement of the moving body.

The grass remover can be separated from the front by scraping the weeds in front of each front body by rotating the removal body so that the rotation trajectory of the front body touches the front of the paddy field. Most of the scraped weeds, apart from each striatum, float on the water surface or underwater, but some remain hung on each striatum.

The weeds remaining in each striatum are removed from each striatum by a grass removal member, according to the rotation of the removal body for scraping out the weeds. That is, the pull-removing member is disposed along the surface formed by the rotational trajectory of the ancestor, and is in contact with the ancestor that rotates and moves, and the contact portion moves relatively from the base toward the hull as the ancestor moves. Since it has a cut-out formed so as to be formed, weeds remaining in each strut are pushed out from the base of each strut toward the hull by the cut, and removed from each strut.

In this way, the occurrence of discomfort such as the weeds entangled in each ancestral body and the weeds on the front surface cannot be removed due to the rotation of the removal body of the weeding work, as in the past, is suppressed. In addition, the burden of removing weeds from the removal body, which is made by stopping the working machine during weeding, is also relieved or alleviated.

As the striated body referred to in the present specification and claims, for example, a metal of a suitable length (piano wire, steel wire, wire, etc.), a synthetic resin (such as nylon or polyethylene), or a composite coated with a metal wire with synthetic resin as a core material And a wire shape or a pin shape made of a material, but is not limited thereto. In addition, although the linear structure may be a material having rigidity, one having a deformability such as semi-rigidity or flexibility may be employed.

As the material of the glue removal member, preferably, a material having water resistance that does not absorb water, such as synthetic resin, natural resin, metal, or composite materials thereof, may be used, but is not limited thereto. In addition, if it can be replaced, it may not necessarily be waterproof, and for example, wood, bamboo, or leather (natural, synthetic) or the like can be employed.

In addition, the term "removed" or "removed (removed)" in the present specification and claims does not mean weeding and tearing, but scratches the soil in front of the paddy field or scratches the soil and weeds. It is used in a sense including separating weeds from soil.

(2) The pool remover of the present invention may be configured such that the pool removal member has flexibility or elasticity, and is rotated against the repulsive force of the pool removal member in which the linear structure is contact-deformed.

This grass remover is a grass removal member arranged along a surface formed by a rotational trajectory of the striatum, whereby the striatum contacts and deforms the pool removal member against flexibility or elasticity. With an approximate average repulsive force, it can contact the striatum.

Then, when the grass remover rotates, weeds caught in the striatum can be stably removed by the cut portion of the grass removal member.

 (3) The pull eliminator of the present invention, the rotational trajectory of the striatum is a side shape of a truncated cone, and the axis of rotation of the removal body having the striatum is inclined at a required angle as if it falls in a direction perpendicular to the direction of movement, and the striatum May be configured such that it rotates about horizontally at the lowest portion of the trajectory.

In this pull eliminator, the rotational trajectory of the striatum is a side shape of a truncated cone, and the axis of rotation of the removal body having the striatum is inclined at a required angle such that it falls in a direction perpendicular to the traveling direction of the working machine, and each striatum rotates. Since it is set to be substantially horizontal at the lowest portion of the trajectory, it is possible to widen the range in which the height direction can be scratched by the removal body under the condition of horizontal movement in the traveling direction.

Therefore, when setting the height of the removal body, for example, even when setting the height of the lowest portion of the rotational trajectory of each striatum slightly lower than the base (base end) of the stem of the weed, the weeds are scraped without requiring such precision. Since the change of the height of the working machine according to the running during the removing operation has little effect, the weeds can be efficiently scraped from the front and guided into the water.

(4) In order to achieve the above object, the paddy weed working machine of the present invention is disposed at a predetermined interval in the circumferential direction around the axis of rotation around the traveling device, the front or rear of the traveling device, or the traveling machine itself. A removal body having a plurality of striatums installed in a radial shape, disposed along the surface formed by the trajectory of the striatum, and in contact with the striatum that rotates and moves, the contacting portion thereof, in accordance with the rotational movement of the striatum, the base portion at the base It is provided with a predetermined number of grass remover having a pull removal member including a cut portion formed to move relatively toward the, and a height adjustment mechanism that can adjust the height of the pull remover relative to the traveler.

The paddy weeding machine can be taken by scraping the weeds on the front side by the front or rear of the traveling machine, or by a grass remover disposed on the traveling machine itself. That is, the rotational trajectory of the striatum makes contact with the front of the paddy field, and the removal body rotates, so that weeds of each striatum can be scraped off and separated from the front. Most of the scraped weeds, apart from each striatum, float on the water surface or underwater, but some remain hung on each striatum.

The weeds remaining in each striatum are removed from each striatum by a grass removal member in accordance with the rotation of the weed body for scraping out the weeds. That is, the grass removal member is disposed along the surface formed by the rotational trajectory of the ancestor, and is in contact with the ancestor that rotates and moves, and the contact portion moves relatively from the base toward the hull as the ancestor moves. Since it has cut portions formed so as to be formed, the weeds remaining in each strut are pushed out from the base of each strut towards the hull by the cut, and removed and separated from each strut.

Therefore, the occurrence of discomfort, such as weeds entangled in each ancestral body, cannot be removed by scraping the weeds on the front surface, is suppressed as the removal of the weeding operation rotates the main body. In addition, the burden of removing weeds from the removal body, which is made by stopping the working machine during weeding, is also relieved or alleviated.

In addition, since the height of the pull eliminator can be adjusted by the height adjusting mechanism, it is possible to adjust the height of the pull eliminator with respect to the rider, that is, the height with respect to the front face, in response to the sinking depth of the front face. In this way, depth setting is possible by weed scratching on the front surface, which is suitable for the growth degree of weeds.

(5) The paddy weeding working machine of the present invention is disposed in front or rear of the traveling machine, and has a plurality of cutters that rotate in the vertical direction, respectively, which are installed at positions between the jaws of the crests during weeding. It may also be configured to include a lawn cutting device capable of adjusting the height with respect to the group.

This paddy weeding machine has a plurality of cutters rotating in the up and down direction by having a lawn cutting device, scraping and cutting the weeds between the jaws of the crested trees, and scraping them from the front surface, and floating in the water or underwater. Can cut weeds. In addition, even when weeds that become cut pieces are sunk on the entire surface, it is difficult to take root in the entire soil.

(6) In order to achieve the above object, in the paddy weeding method of the present invention, the removal body having a plurality of striatums radially installed at regular intervals in the circumferential direction around the axis of rotation is rotated in front of the paddy field, and in each striatum In the process of scraping the weeds and in the grass removal member disposed along the surface formed by the rotational trajectory of the ancestral body, and in contact with the rotating ancestor, the contacting portion is relative from the base to the front part according to the rotational movement of the ancestor. It is provided with a process of rotating the removal body so as to move to, and removing weeds caught in the striatum from the striatum.

According to this padding weeding method, the weed body is separated from the front surface by rotating the removal main body having a plurality of striatums radially installed at regular intervals in the circumferential direction around the rotating shaft, and scraping the weed from each strut body. I can do it. Most of the scraped weeds, apart from each striatum, float on the water surface or underwater, but some remain hung on each striatum.

In addition, it is arranged along the surface formed by the rotational trajectory of the striatum, and in the pull-removing member in contact with the rotating striatum, the contacting portion moves relatively from the base of the striatum toward the hull portion according to the rotational movement of the striatum. By rotating the main body to remove the weeds from the striatum by removing the weeds from the striatum, the weeds remaining in the striatum are pushed from the cut-out portion toward the hull at the base of each striatum and are removed and separated from the striatum.

Therefore, the occurrence of discomfort such as weeds being entangled in each ancestral body and the removal of weed scratches on the front surface cannot be eliminated is suppressed with the rotation of the removal main body of the weeding operation. In addition, the burden of removing weeds from the removal body, which is made by stopping the working machine during weeding, is also relieved or alleviated.

When the weeding operation of the paddy field, the present invention rotates and scrapes the weeds, before removing the weeds remaining in the removal body to be strongly entangled in the removal body, the grass remover can remove it from the removal body according to the movement of the removal body. The used padding weeding machine and the padding weeding method can be provided.

1 is a perspective view showing an embodiment of a paddy weeding machine according to the present invention.
Fig. 2 is a front view of the padding weeding machine shown in Fig. 1.
3 is an explanatory side view of a working device of the padding weeding machine shown in FIG. 1.
FIG. 4 is an explanatory view showing a configuration of a power transmission system of the padding weeding machine shown in FIG. 1.
FIG. 5 is an explanatory view of the floor of the rice weeding machine shown in FIG. 1;
Fig. 6 is a perspective view showing an embodiment of a pull eliminator according to the present invention.
7 is an explanatory view of an exploded perspective view of the pull eliminator shown in FIG. 6.
Fig. 8 is an explanatory view showing the movement to be taken out of the pin by removing the weeds of the grass remover.
Fig. 9 is a front explanatory view showing a state in which the daytime weeds on the front side are scraped off by a grass remover of a paddy weeding machine.

An embodiment of the present invention will be described in more detail with reference to FIGS. 1 to 8.

In addition, in the following description, in the description of the direction and the position, the term "before, after, left and right" may be used, and the traveling direction side of the traveler 1 is "before" and the reverse side thereof. "After" and "left and right" are based on "left and right" as seen by the operator (pilot) who boarded the traveler 1 for convenience.

The non-mowing work machine W is equipped with a traveling machine 1 and a mower A provided on the front side of the traveling machine 1 so as to be capable of height adjustment according to the traveling machine 1. In addition, the non-mowing work machine W may omit the illustration of operating systems such as various switches and levers. In addition, in the present embodiment, the mower A is provided in front of the traveler 1, but is not limited thereto, and is configured to be installed in the rear of the traveler 1 or in the traveler 1 itself. You may do it.

The engine 1 is mounted on the rear of the chassis frame 10 in the traveling machine 1. A seat 12 is installed at the front of the engine 11, and a control unit (not shown) with a handle 13 is installed at the front. In addition, each wheel 14 is a four-wheel steering structure (detailed description of the structure is omitted), and is advantageous for driving in a field in which a small rotation is heard.

At the front end of the undercarriage frame 10, a mower A is provided so as to be able to elevate through the elevating link device 15. The lifting link device 15 has one link 150 on the upper side and two parallel links 151 and 152 on the lower side, and each proximal end portion has an upper shaft 153 fixed to the chassis frame 10 and a lower shaft ( 154) is installed so as to be able to rotate in the vertical direction (see FIG. 3).

The front ends of the links 150, 151, 152 are provided so as to be rotatable in the vertical direction on the upper shaft 331 and the lower shaft 332 fixed to the rear bracket 33 of the mower A, which will be described later. Further, between the upper shaft 153 on the undercarriage frame 10 side and the lower shaft 332 on the bracket 33 side, the cylinder base fits from the lower opening side in the link 150, and the cylinder base of the hydraulic cylinder 16 And the rod end are rotatably installed in the vertical direction (see FIG. 3).

According to this structure, by expanding the rod of the hydraulic cylinder 16, the mower A is properly lifted, the height of the mower A relative to the traveler 1, that is, the mower A is provided and will be described later. The height of the grass removal equipment 5 and the grass cutting equipment 6 can be adjusted. In addition, the height of the mower A is controlled based on the information in the float sensor device 9 described later.

The mower A has a basic frame 2 (see FIGS. 1 and 2), the bracket 33 being rearward of the case bracket 30 of the power repeater 3 fixed to the basic frame 2 It is fixed to the side. At the rear of the bracket 33, the upper shaft 331 and the lower shaft 332 are fixed as above, the upper shaft 331 has a leading end portion of the link 150, and the lower shaft 332 has a leading end portion of the links 151 and 152, and hydraulic pressure. The rod end portion of the cylinder 16 is rotatably installed in the vertical direction.

Here, the outline of the structure of the tillage machine A is demonstrated first.

The power repeater 3 is fixed to the upper surface side of the basic frame 2 of the mower A. Power is input to the power repeater 3 through the power take-off shaft 17 from the rear traveler 1. The power repeater 3 has a built-in gear device (not shown), and is provided with a drive 31 installed at right angles to the right direction (left direction in Figs. 1 and 2), perpendicular to the running direction.

The basic frame 2 is laid out so that the swinging frame 4 described later can swing (or rotate) in the vertical direction about the central axis 20 through the central axis 20. At the bottom of the swinging frame 4, the weeds on the front of the paddy field are scraped by the removal main body 560 of the grass remover 56, and the grass removal device 5 is installed so as to be able to adjust the lift. The grass remover 5 and the grass cutting equipment 6 are kept in a roughly horizontal position at which the horizontality is always adjusted by the horizontal control device 8 described later in the weeding work performed in the rice field.

On the rear side of the swinging frame 4, a full cutting equipment 6 for cutting weeds that are scratched and floated on the water surface is provided through a connecting arm member (not shown). The full-cutting equipment 6 has cutters 65 installed at nine locations according to the cutter drive shaft 66 to be described later, and each cutter 65 can adjust a fixed position according to the cutter drive shaft 66. .

The grass cutting equipment 6 is driven by the drive shaft 31 of the power repeater 3. In addition, the pull removal device 5 is driven by the hydraulic motor 57 of itself as described later. In addition, the number of the paste removal machine 56 and the cutter 65 is not specifically limited, It can be set suitably according to the tide of a crested tree.

Hereinafter, the configuration of each part of the mower A will be described in more detail.

(a) Driving system for driving pull cutting equipment (6)

The power repeater 3 fixed to the upper surface of the basic frame 2 has a case bracket 30, and the bracket 33 is fixed to the rear of the case bracket 30. In the power repeater 3, the power of the engine 11 is input from the rear traveler 1 through the power take-out shaft 17 elastically according to a change in angle with a spline structure. The power repeater 3 has a drive shaft 31 installed in the right direction as described above (see Fig. 2 and the like).

On the front end side of the drive shaft 31, power is input to the relay drive shaft 64 which is axially supported by a support frame (not shown) fixed to the swing frame 4. The drive shaft 31 is expanded and contracted with a spline structure, and has universal (not shown) on the proximal end and the proximal end, so that the swinging frame 4 swings in the vertical direction to transmit power. Therefore, it is possible to cope with the movement in the vertical direction of the relay drive shaft 64 connecting the leading end of the drive shaft 31 for adjusting the horizontality of the grass removal device 5 and the grass cutting equipment 6.

Further, the relay drive shaft 64 is provided with a sprocket (not shown), and a chain (not shown) is hung between the sprockets (not shown) provided on the cutter drive shaft 66. Each of these axes, sprockets and chains are included in the chain case 34 (see FIG. 2). The chain case 34 is provided so that the upper end is rotatable about the relay drive shaft 64, and is capable of responding to movement in the vertical direction of the full cutting equipment 6.

In addition, the rotation speed of the drive shaft 31 can be adjusted separately from the travel speed of the travel machine 1. Therefore, when the engine 11 is operating and power is transmitted to the power take-off shaft 17, the operating speed of the full-cutting equipment 6 can be adjusted independently of driving and stopping of the traveler 1. .

The rocking frame 4 is formed of a rectangular tube having a certain length in the left and right directions, and is built up to be rockable around the central axis 20, through the central axis 20, in front of the inner frame 2 have. That is, the swinging frame 4 includes the base frame 2 and the parallel position so that the left and right sides can rotate in a vertical angle range in the vertical direction. In addition, the horizontal control device 8 which controls the swing frame 4 to swing and controls the grass removal device 5 and the grass cutting equipment 6 horizontally will be described later.

 (b) Pool removal device (5)

Mainly, FIGS. 4 and 6 to 9 are referred to.

The grass removal device 5 has a snow cover bar 55 of approximately the same length as the grass cutting equipment 6. The snow cover bar 55 is a lower end of a dropping member (not shown) provided in the inner frame 2. Is fixed approximately horizontally.

On the snow bar 55, a pool remover 56 is installed at sixteen places at regular intervals in the longitudinal direction, and a pair of adjacent pool removers 56 and 56 are installed to install eight lower cases 550. It is done. In the lower case 550, a shovel hole (not shown) is formed in which the attachment inclined portions 553 are respectively disposed in the longitudinal direction of the snow bar 55 and provided in two places. Each attachment inclined portion 553 is fixed to the bottom bracket 555 with screws so that the support cylinder 554 is perpendicular to the attachment inclined portion 553 so as to fit into each shovel hole.

In addition, the snow cover bar 55 is fixed horizontally, and each attachment inclined portion 553 of the lower case 550 is inclined at about 60 ° with respect to the lower surface of the snow cover bar 55, and thus, each holding The angle of the cylinder 554 and each of the rotational shafts 561 to be described later is inclined at about 60 ° as if to fall in a direction perpendicular to the traveling direction of the working machine with respect to the front surface on the horizontal plane. In addition, the angle of each attachment inclined part 553, each support cylinder 554, and each rotation shaft 561 mentioned later is not limited to the said angle, It can be set suitably.

The carrying cylinder 554 is formed in a substantially cylindrical shape and a predetermined length. The bearings (not shown) are fixed to the upper and lower two places in the inside of each support cylinder 554. A rotating shaft 561 passes through the inside of each carrying cylinder 554, and the rotating shaft 561 is axially supported by each bearing. A bevel gear 562 (shown in FIG. 9) is fixed to an upper end portion of the rotating shaft 561, and the bevel gear 562 is located in the inner space of the lower case 550.

As shown in FIG. 9, the bevel gear 562 is engaged with the bevel gear 562 fixed to the rotation shaft 561 of another adjacent pull remover 56. In addition, in parallel to the snow bar 55, the relay rotating shaft 563 is supported, and the relay rotating shaft 563 is provided with a pair of grass removers 56 and 56, and in eight places, one grass remover 56 ), The bevel gear 564 is engaged with the bevel gear 562 is fixed.

A driven gear (not shown), which is a bevel gear, is fixed to the central portion of the relay rotation shaft 563, and the driven gear is a bevel gear (sign, which is fixed to the rotating shaft of the hydraulic motor 57 fixed to the snow bar 55). Omitted). According to this, each pull eliminator 56 rotates in conjunction with a hydraulic motor 57 through a relay rotation shaft 563.

The pair of adjacent grass removers 56 and 56 are rotated in opposite directions, and in operation, the striatum 566, which will be described later, is driven to rotate the crested trees in both directions.

In addition, although the hydraulic motor 57 is provided with an oil line, an operating system, etc., illustration and description are abbreviate | omitted here.

A screw portion 561a is provided at the distal end of each rotary shaft 561, and the cap nut 561b is screwed to fix the hexagonal turntable 565. In the outer circumference of the turntable 565, six metal linear pin-like striages 566 are provided along each side. Each ancestral body 566 is radially inclined so that the tip side extends over the outer circumference of the turntable 565 and is installed at an inclination angle of about 30 ° with the turntable 565.

The removal body 560 is formed by the turntable 565 and each ancestor 566. In addition, the number of the ancestors 566 is not limited to five of the present embodiment, and can be appropriately set. In addition, the angle to the turntable 565 of each ancestor 566 is not limited to the above angle, and can be appropriately set.

The front end bracket 556 is provided at the front end of the support cylinder 554, and the pull removal member 567 is fixed to the front end bracket 556 (see FIGS. 6 to 8). The front-end bracket 556 is gradually fixed to the inclined upward slope in a counterclockwise direction corresponding to the outer circumferential surface of the support cylinder 55 (refer to FIG. 8 in particular). In addition, screw pins 556a are erected in two places at required intervals on the upper surface of the ship bracket 556.

As shown in each figure, the shape of the paste removal member 567 is a plate body of a shape close to a curved elongated ellipse formed with a linear or required curvature in all directions. Holes 567a (see FIG. 7) are formed in two places at required intervals near the straight edge on one side in the width direction of the glue removal member 567. In addition, the other edge becomes an excavation part 567b that is formed to expand outwardly with a turning curvature and gradually protrude outward in the rotational direction of the ancestor 566.

Further, the glue removal member 567 is formed of a flexible or elastic synthetic resin, and is formed with a sufficient thickness. In this embodiment, although the thickness is 2 mm, it is not particularly limited as long as it is possible to eliminate weeds caught in the ancestor 566.

The pull-removal member 567 is fitted with a screw pin 556a in each hole 567a, and is made of metal and is flexible, and the seat plate 56 having a hole (omitted) is passed through two places. When the cap nut 569 is fastened to each screw pin 556a, the cap nut 569 is fixed to the inclined wire bracket 556 as above.

Therefore, the pull removal member 567 is inclined according to the front end bracket 556 (refer to FIG. 8 in particular), and a part of each strut 566 of the removal main body 560 of the pull remover 56 (up to three bones) ) Is in contact with the ancestor 566 to slightly deform from above (see Fig. 8). In addition, the seat plate 568 has a function to help repel the striatum 566 by deformation of the glue removal member 567.

In addition, the rotation trajectory of the ancestor 566 of the removal main body 560 of the adjacent grass remover 56 is set to partially overlap, so that weed scraping does not occur. In addition, when the snow bar 55 is horizontal in the above structure, the ancestor 566 of each removal body 560 is approximately horizontal at the lowest portion of the rotational trajectory, and is parallel to the front surface.

And, by being driven by the hydraulic motor 57, each removal body 560 rotates in the upward rotational direction, so that the rotational trajectory of each filigree body 566 becomes a side shape of an inclined cone, and each filigree body 566 is Rotate in a trajectory of rotation from the bottom of the front to the space above the water surface. In this way, at the time of the work, each weed body 566 allows the weeds to be moved underwater from under the front to be scraped off.

(c) Height adjustment mechanism of the pool removal device (5)

Reference is mainly made to FIGS. 1 and 3.

The pull remover 5 rotates and adjusts the height adjustment lever 59 (refer to FIGS. 1 and 3) provided at the right end of the swinging frame 4, thereby corresponding to the height of the pull cutting equipment 6 described later. Can be adjusted. The base end portion of the height adjustment lever 59 is fixed to the drive shaft (not indicated). The drive shaft is axially supported on the front surface of the connecting arm member, respectively.

In addition, an adjustment operation panel 593 is provided on the height adjustment lever 59 side of the swinging frame 4. A guide portion 594 through which the height adjustment lever 59 can move is formed in the upper portion of the adjustment operation panel 593, and a plurality of supporting groove portions (omitted) are longitudinally formed at the edge of the guide portion 594. It is formed of. On the bottom side of the height adjustment lever 59, a support plate portion (not shown) that can be supported by the support groove portion is formed.

According to this structure, when the height adjustment lever 59 is rotated in the vertical direction, the snow bar 55 is rotated up and down. In this way, when the height adjustment lever 59 is rotated, the supporting plate portion is supported on the required groove portion, so that the height of the snow bar 55 relative to the grass cutting equipment 6, that is, each grass remover of the grass removal equipment 5 ( 56) height can be adjusted.

(d) Pull Cutting Equipment (6)

Reference is mainly made to FIGS. 1, 3 and 5.

At the rear of the pull eliminator 5, through the connecting arm member fixed to the swinging frame 4 and the left and right shaft supporting members (61, see FIG. 3, the rear shaft supporting member 61 is not visible), pull Cutting equipment 6 is installed. The cutter cover 63 is fixed to the shaft support members 61 and 61.

On the lower side of the shaft supporting members 61 and 61, the cutter drive shaft 66 is axially supported so as to be rotatable in a substantially horizontal direction (see FIGS. 3 and 5). The cutter drive shaft 66 is a hexagonal tube body (hexagonal tube) having a cross-sectional shape. In the cutter drive shaft 66, the upper part of the cover part 630, which constitutes the upper cutter cover 63, is provided at a position (nine total) passing between two ends of the crests during operation, respectively. The cutter 65 is provided.

Each cutter 65 is constituted by a pair of cutter units (omitted) in opposite directions in substantially the same structure. In the cutter module, a substantially L plate-shaped knife body 657 is fixed to three places in the circumferential direction of the mounting substrate (not shown). The knife body 657 has a mounting plate portion (not shown) fixed to the mounting substrate, and bent at a right angle with respect to the mounting plate portion, and has a slanted blade plate portion (not shown) by providing a slight clearance angle on the opposite side to the rotation direction. . Each cutter module can be moved according to the cutter drive shaft 66.

In addition, each cutter module constituting each cutter 65 is provided at a predetermined distance from each other in each cover portion 630. In addition, each cutter module is installed by facing each other with each blade body 657 installed, and delaying by 60 ° in the axis direction. When the cutter drive shaft 66 rotates, each cutter 65 rotates, so that each blade body 657 can cut weeds floating on the water surface or floating in the water by tapping from above.

 (e) Leveling mechanism of the grass removal device (5) and the grass cutting equipment (6).

The leveling degree during the weeding operation of the grass removal device 5 and the grass cutting equipment 6 provided on the swinging frame 4 is controlled by the horizontal control device 8 (see FIGS. 1 and 2).

The horizontal control device 8 has a horizontality sensor (not shown) mounted on the snow bar 55. The horizontality sensor detects the horizontality of the rocking frame 4 and sends a horizontality information signal to a control unit (not shown).

In addition, the horizontal control device 8 is fixed to the upper surface of the swinging frame 4, and has a drive rod 81 that moves forward and backward by an electric motor and a gear device (neither of which is shown). The driving rod 81 is installed diagonally upward toward the case bracket 30, and the tip thereof is condensed so as to be rotatable in the vertical direction to the case bracket 30.

According to this structure, the rotational direction and the amount of rotation of the rotation axis of the electric motor are controlled by receiving the horizontality information signal of the horizontality sensor by the control unit, and the driving rod 81 moves forward and backward by the gear device to swing the frame 4 and swing The grass removal device 5 and the grass cutting equipment 6 installed on the frame 4 oscillate about the central axis 20, and the grass removal device 5 and the grass cutting equipment 6 of the weeding work in the paddy field The horizontality is controlled.

(f) Height adjustment mechanism of mower (A)

The height of the mower A is controlled by the float sensor device 9.

The float sensor device 9 has a wall arm (not shown) whose base is fixed to an axis (not shown) axially supported in the front-rear direction in the vicinity of the central axis 20 of the upper surface of the swinging frame 4. At the tip of the wall arm, the central portion of the balance arm 92 of the required length is supported so as to be able to rotate in the vertical direction. The leg members 93 are erected at four positions of the balance arm 92, and a linear float 94 is provided at the lower end of each leg member 93.

The movement of each float 94 that is in contact with the front and moves up and down is detected by a sensor (not shown), and by receiving the height position information signal of the sensor as a control unit, the hydraulic cylinder 16 is operated to load. Is stretched, the height of the entire mower A is controlled, and, for example, when each float 94 is increased, the load of the hydraulic cylinder 16 is reduced, and the mower A is lowered.

[Action]

1 to 9, the operation of the padding weeding machine W will be described.

In rice cultivation, after the rice is grown to some extent, weeding is performed to remove weeds growing on the crests around the rice or on the crested trees when they are not growing significantly.

 (1) Put the weeding machine (A) in front of the paddy weeding machine (W) into the paddy so that each grass remover (56) of the grass removal device (5) is positioned between the two crested grooves (71). (See FIG. 9). In addition, the interval of each pair of each grass remover 56 (the space in the left-right direction in FIG. 9) can fit the width (30 cm) between the jaws of the crested trees 71 that can be planted in a typical rice transplanter, so that weeding is done in paddy fields. The machine W can be positioned relatively easily in this position.

 (2) And, first, by the operation of the traveling machine 1 by the pilot, the grass removal device 5 and the grass cutting equipment 6 installed on the swinging frame 4 of the mower A are horizontal control devices. It is set to be horizontal by (8), that is, parallel to the front surface 7 of the paddy field.

(3) Similarly, by the operation of the traveling machine 1 side, the hydraulic cylinder 16 is operated to adjust the height of the mower A. At this time, the position of the lower height (minimum height of the blade 657) of the trajectory of the cutter 65 of the cutting machine 6 is slightly lower than the front 7 (for example, about 10 mm lower), that is, each The blade body 657 is set to scratch the front surface 7.

 (4) Next, by operating the height adjustment lever 59, the height of the lowest portion on the front side of the rotational trajectory of each ancestor 566 of each ancestor 566 of each removal body 560 of the pull removal device 5 A, it is set to be caught in the root portion of the weed (70) on the front (7) (see Fig. 9). In addition, each float 94 of the float sensor device 9 is loaded on the front surface 7 and the setting is finished.

 (5) When the drive shaft 31 of the power repeater 3 is driven by the operation of the traveling machine 1 side, each cutter 65 fixed to the cutter drive shaft 66 of the full cutting equipment 6 rotates do. In addition, when the hydraulic motor 57 is driven, each removal body 560 of the pull removal device 5 rotates. In addition, since the rotational speed of each removal body 560 and the rotational speed of each cutter 65 can be adjusted independently of the traveling speed of the traveling machine 1, each can be appropriately adjusted according to the weeding work situation. Work is possible.

(6) When the weeding working machine W is moved forward by the traveling machine 1, each removal main body 560 rotates the crested stems 71 with the respective ancestors 566 in both directions, and the ancestors By rotating so that the rotation trajectory of 566 touches the front surface 7 of the paddy field, each striatum 566 can scrap the weeds 70 on the front surface 7 and separate them from the front surface 7. Most of the scraped weeds, apart from each striatum, float on the water surface or underwater, but some remain hung on each striatum.

In the middle of Fig. 8, for convenience of explanation, the weed 70 is shown as a virtual line in a lump, but in reality, the weed is removed in a step before lumping as described later.

In addition, in the removal body 560, the rotational trajectory of each ancestral body 566 is a side shape of a truncated cone, and each ancestral body 566 is approximately horizontal from the lowest portion of the rotational trajectory, and is located below the front surface 7. It rotates while drawing a trajectory up to the space above the water surface. Therefore, under the condition in which the working machine horizontally moves in the traveling direction, it is possible to take a wider range in which the scraping and removal in the height direction is possible, for example, compared to that in which each ancestor 566 rotates horizontally.

Then, when setting the height of the removal main body 560, for example, even when setting the height of the lowest portion of the rotational trajectory of each ancestral body 566 to be caught in the root portion of the weed 70, such accuracy is required. Rather, the change in the height of the work machine according to the travel during the work of scratching the weeds has little effect, so the weeds 70 can be efficiently scraped off the front surface 7.

The weeds 70 remaining in each striatum 566 are simultaneously or simultaneously with the scraping and removal of the weeds 70 by the rotation of the removal body 560 for scraping off the weeds 70. , Take away from each ancestral body (566). That is, the grass removal member 567 is disposed along the surface formed by the rotational trajectory of the ancestor 566, and each ancestor 566 that rotates corresponds to a repulsive force due to its deformation in the cutout portion 567b. Therefore, it is in contact with the outside of the resistor (see Fig. 8).

Then, according to the shape in which the cut-out portion 567b of the glue removal member 567 is slowly spread outwardly in the rotational direction of the ancestral body 566, the portion in contact with the ancestral body 566 is the ancestral body 566. According to the rotational movement, it moves relatively from the base of the ancestral body 566 toward the front portion. Therefore, the weeds 70 remaining in each striatum 566 are pushed toward the ships from the base of each striatum 566 by the cut-out portion 567b, and are removed and separated from the striatum 566 (Fig. 8). Speed).

Therefore, as in the prior art, the weed 70 of the front body 7 is entangled with each ancestral body 566 according to the rotation of the removal main body 560 of the weeding operation, so that the weed 70 of the front surface 7 cannot be removed. It can prevent or suppress the discomfort of the. In addition, the burden of removing the strongly entangled weed from the removal body 560 (cleaning operation), which is made by stopping the working machine during the weeding operation, is relieved or alleviated.

 (7) At the rear of the grass removal device 5, each cutter 65 of the grass cutting equipment 6 cuts the weeds 70 floating on the water surface or in the water, and at the same time, crested groove 71. Under the entire surface of the tank, it is possible to simultaneously remove scratches on the weeds 70 cut and removed by the respective removal bodies 560.

 (8) As such, since the weeds 70 of the front surface 7 are cut by each cutter 65 after removal of the scratches by the respective removal bodies 560, the cut pieces of the weeds 70 are later transferred to the front surface ( Even if it sinks in 7), it can be prevented from rooting in the soil of the front surface 7. In addition, through this, it is possible to reduce the number of herbicides as a result.

In addition, the pilot can confirm the state and situation of scratch removal of each of the removal bodies 560 in front of each cutter 65 and each cutter 65 in an unattended posture toward the front, and the weed situation can be checked in real time. You can work while checking. Therefore, for example, when the traveling position of the traveling machine 1 seems to be slightly displaced in the width direction between the jaws of the crested groove 71, it can be quickly solved, and efficient weeding can be performed.

In addition, the horizontality of the grass removal machine 5 and the grass cutting equipment 6 is controlled by the horizontality control device 8, and each removal depth is removed by scraping off the front surface 7 by each removal body 560. Since the main body 560 can be kept in the same state, it is possible to perform stable weeding without any difference in the width direction of the mower A.

The terms and expressions used in the specification and claims are for illustrative purposes only, and are not limiting, and the intention of excluding the terms and expressions equivalent to the features described in the specification and claims and parts thereof none. In addition, it goes without saying that various modifications are possible within the technical scope of the present invention.

W paddy weeding machine 1 traveler
10 chassis frame 11 engine
12 seat 13 handle
14 wheel 15 lifting link device
150,151,152 links 153
154 lower shaft 16 hydraulic cylinder
17 Power take-off shaft A mower
2 Base frame 20 Central axis
3 Power Repeater 30 Case Bracket
31 Drive shaft 33 Bracket
331 Upper axis 332 Lower axis
34 chain case 4 swing frame
5 Grass Remover 55 Snow Bar
550 Lower case 553 Attachment slope
554 base 555 base bracket
556 Mounting bracket 556a Screw pin
56 Pool Removal Equipment 560 Removal Body
561 rotating shaft 561a thread
561b cap nut 562 bevel gear
563 relay rotating shaft 564 bevel gear
565 turntable 566 striatum
567 Pool removal member 567a hole
567b cutout 568 seat
569 sealing nut 57 hydraulic motor
59 Height adjustment lever 593 Control panel
594 Guide 6 Pull Cutting Equipment
61 Shaft support member 63 Cutter cover
630 Cover section 64 Relay drive shaft
65 cutter 657 blade
66 Cutter drive shaft 7 Front
70 Weed 71 Crested Tree
8 Horizontal control device 81 Driving rod
9 Float sensor unit 92 Balance arm
93 Leg member 94 Linear Float

Claims (6)

A removal body having a plurality of striatums radially installed at regular intervals in the circumferential direction around the axis of rotation,
It is disposed along the surface formed by the rotational trajectory of the striatum, and in contact with the rotating striatum, the contact portion is formed with a cutting portion formed to move relatively from the base toward the hull portion according to the rotational movement of the striatum. A grass remover having a grass removal member having. The method according to claim 1,
The glue removing member has a flexibility or elasticity, and the pull remover which rotates in response to the repulsive force of the glue removing member, which has been contact-deformed by the striatum. The method according to claim 1 or 2,
The rotational trajectory of the striatum is a side shape of a truncated cone, and the axis of rotation of the removal body having the filigree is inclined at a certain angle by being inclined in a direction perpendicular to the direction of movement, and the striatum is at the lowest part of the trajectory. Horizontally rotating grass remover. Traveler and
A removal body having a plurality of striatums installed radially at regular intervals in the circumferential direction around the axis of rotation, disposed on the front or rear of the traverse, or on the traverse itself, along the surface formed by the trajectory of the striatum A plurality of pull eliminators having a pull removal member disposed in contact with the rotating striatum, the contacting portion including a cutout formed to move relatively from the base toward the fiducial according to the rotational movement of the striatum Wow
Paddy weeding machine having a height adjustment mechanism capable of adjusting the height of the pull eliminator relative to the traveler. The method according to claim 4,
A lawn cutting device having a plurality of cutters which are disposed at the front or rear of the traveler and rotate in the vertical direction respectively installed at positions between the jaws of the crested trees during weeding. Equipped weeding machine. A process of rotating the removal body having a plurality of striatums radially installed at regular intervals in the circumferential direction around the axis of rotation to the front of the paddy, scraping the weeds from each striatum,
It is arranged along the surface formed by the rotational trajectory of the striatum, and in the pull-removing member that comes into contact with the rotatable striatum, the contacting portion moves relatively from the base toward the hull portion according to the rotational movement of the striatum. A method of weeding a paddy field comprising a step of rotating the removal main body to remove weeds from the striatum from the striatum.

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