JP4928803B2 - Tillage work machine - Google Patents

Description

  The present invention relates to a tilling work machine that performs a tilling work while a tilling rotor rotates, and more particularly to a tilling work machine that includes a leveling plate that touches the surface of the field and leveles the field.

  As a tilling work machine provided with such a leveling plate, a scraper described in Patent Document 1 is generally known. As shown in FIG. 5 (rear view), this scraper 70 is a ground leveling plate 72 attached to the rear end portion of a cover 71 that covers the upper portion of a tilling rotor (debris in the literature) so as to be rotatable in the vertical direction. And an extension plate 73 that is attached to the left and right ends of the leveling plate 72 so as to be pivotable in the vertical direction, and performs leveling work, and is provided at the lower part of the leveling plate 72 and the extension plate 73 and formed of an elastic material, And a pressure suppressing plate 74 for performing the above.

The leveling plate 72 extends obliquely rearward from the rear end portion of the cover 71, the rear end portion contacts the field surface, and the pressure plate 74 elastically deforms and extends along the field surface while urging the field surface downward. The field surface is leveled by the rear end of the base plate 72 and the bottom surface of the pressure plate 74. Moreover, although not specified in Patent Document 1, a plurality of notch portions 75 arranged at a predetermined interval in the width direction of the pressure suppression plate 74 are provided at the rear end portion of the pressure suppression plate 74, The muddy water in the field is made to easily flow out behind the pressure suppression plate 74 .

Japanese Utility Model Publication No. 59-55411 (FIG. 5)

    All of the notches provided in the pressure plate extend in the front-rear direction along the traveling direction of the scraper. For this reason, if the scraping work is performed while the scavenger moves forward, the muddy water in the field will come out substantially straight behind the scavenger. For this reason, the muddy water flows straight to the rear side of the scraper at both ends in the width direction of the pressure suppression plate, and the muddy water does not flow toward the central portion side of the pressure suppression plate.

    Therefore, when the adjacent untreated field is scraped by the scraping machine so that the widthwise end of the packer is overlapped with the end of the treated field that has already been scraped, mud may be pressed depending on the field conditions. Is pushed sideways from the end of the width direction, and along with this, the wrinkles etc. existing in the untreated field are washed away to the overlapping part of the processed field, and the superposed part that is neatly ground is lost, There arises a problem that the entire field surface cannot be leveled.

  This invention is made | formed in view of such a problem, and it aims at providing the tilling work machine which can level all the field surfaces uniformly.

In order to achieve the above object, a tillage working machine according to the present invention (for example, the scraper 1, 1 ′ in the embodiment) is attached to the rear part of a traveling machine body and is rotated by power transmitted from the traveling machine body. And a first leveling plate (for example, the first leveling plate 15 and the first extended leveling plate 32 in the embodiment) supported rotatably at the rear side in the traveling direction of the tilling rotor and the rear end portion of the first leveling plate. And a second leveling plate (for example, the second leveling plate 16 and the second extension leveling plate 33 in the embodiment) supported so as to be able to rotate, and the tilling rotor advances while traveling with the traveling body while rotating. In the tillage working machine that works and levels the field surface with the first leveling plate and the second leveling plate, the rear end portion of the second leveling plate is provided with a notch extending in the front-rear direction in plan view, and the notch Among them, the width direction of the second leveling plate The notch portion on the end side is inclined to the center side of the second leveling plate, and when the second leveling plate moves forward in the field, the muddy water in the field passes through the notch portion and the center side of the second leveling plate. It is characterized by flowing out into .

According to the present invention, notches provided in the rear end portion of the second leveling plate, by extending in the longitudinal direction inclined to the central portion side of the second leveling plate in a plan view, field flowing from notches The muddy water can flow to the center side of the second leveling plate. Therefore, when providing the notch portion extending in the longitudinal direction inclined to the central portion side in the widthwise direction end portion of the second leveling plate, flow muddy water passing rearward from the end to the center portion side of the second leveling plate be able to. As a result, when the width direction end portion of the second leveling plate is already so Kasaneau the end portion of the field of pre-processing tilling is performed, tilling the field of raw adjacent the cash掻機, mud the first flows out from the width direction end portions of the two leveling plates inwardly obliquely rearwardly, straw or the like existing in the field immediately after the processing is pushed back inwardly in the width direction of the second ground leveling plate. For this reason, wrinkles and the like do not enter the overlapped portion of the processed field, the state of the well-prepared overlapped portion can be maintained, and the entire surface of the field can be leveled evenly.

The present invention is mounted to the rear of the vehicle body, the first leveling plate and said pivotally supported in the traveling direction rear side of the tilling rotor and the tilling rotor rotated by power transmitted from the vehicle body first A second leveling plate rotatably supported at the rear end portion of the first leveling plate, and the first leveling plate and the second leveling plate and the second leveling plate while performing the tilling work while the traveling rotor rotates while the tilling rotor rotates . in tilling machine for leveling a field surface by leveling plate, the notches extending in the longitudinal direction on the rear end portion of the second leveling plate provided cutout portion includes a first side portion, the second integer than this It has a second side part that is located on the center part side of the main plate and is inclined more toward the center part side of the second leveling board than the first side part, and has a left-right asymmetric structure with respect to the front-rear direction. And

According to the present invention, notches provided in the rear end portion of the second leveling plate, the first side portion with a first side portion, which is positioned on the center side of the second leveling plate than By having a second side part that is greatly inclined toward the center part side of the second leveling plate and making it asymmetrical with respect to the front-rear direction, the muddy water flowing in the notch part is on the center side side of the second leveling board Leaked into the spill. Therefore, when providing the notch portion extending in the longitudinal direction inclined to the central portion side in the widthwise direction end portion of the second leveling plate, flow muddy water passing rearward from the end to the center portion side of the second leveling plate be able to. As a result, when the width direction end portion of the second leveling plate is already so Kasaneau the end portion of the field of pre-processing tilling is performed, tilling the field of raw adjacent the cash掻機, mud the first flows out from the width direction end portions of the two leveling plates inwardly obliquely rearwardly, straw or the like existing in the field immediately after the processing is pushed back inwardly in the width direction of the second ground leveling plate. For this reason, wrinkles and the like do not enter the overlapped portion of the processed field, the state of the well-prepared overlapped portion can be maintained, and the entire surface of the field can be leveled evenly.

The present invention is mounted to the rear of the vehicle body, the first leveling plate and said pivotally supported in the traveling direction rear side of the tilling rotor and the tilling rotor rotated by power transmitted from the vehicle body first A second leveling plate rotatably supported at the rear end portion of the first leveling plate, and the first leveling plate and the second leveling plate and the second leveling plate while performing the tilling work while the traveling rotor rotates while the tilling rotor rotates . In a tilling work machine that leveles the field surface with a leveling plate, a hollow convex portion (for example, the convex portions 60 ′ and 60 ″ in the embodiment) protruding upward is provided at the rear end portion of the second leveling plate, and the convex portion includes a first side plate portion extending in the front-rear direction, a second side plate portion extending in the longitudinal direction located at the central portion of the second leveling plate than this, between the upper end portions of the first side plate portion and the second side plate portion A top plate portion for connecting the top plate portion to the first side plate portion side on the second side plate portion side. Characterized in that it consists as inclined high Ri.

According to this invention, the convex portion provided at the rear end portion of the second leveling plate includes the first side plate portion, the second side plate portion positioned closer to the center side of the second leveling plate, and these side plates. The top plate portion connecting the upper end portions of the portion, and the top plate portion is inclined so that the second side plate portion side is higher than the first side plate portion side, so that the muddy water flowing into the convex portion is It hits the top plate part and flows out from the convex part toward the central part of the second leveling plate. Therefore, when providing a convex portion extending in the longitudinal direction inclined to the central portion side in the widthwise direction end portion of the second leveling plate, flowing mud passing rearward from the end to the center portion side of the second leveling plate Can do. As a result, when the width direction end portion of the second leveling plate is already so Kasaneau the end portion of the field of pre-processing tilling is performed, tilling the field of raw adjacent the cash掻機, mud the first flows out from the width direction end portions of the two leveling plates inwardly obliquely rearwardly, straw or the like existing in the field immediately after the processing is pushed back inwardly in the width direction of the second ground leveling plate. For this reason, wrinkles and the like do not enter the overlapped portion of the processed field, the state of the well-prepared overlapped portion can be maintained, and the entire surface of the field can be leveled evenly.

  Furthermore, the top plate portion of the present invention is provided with a discharge port for discharging a part of the muddy water in the farm field that has flowed into the convex portion.

According to the present invention, by providing the discharge port in the top plate portion, soot and the like that have flowed into the convex portion and a part of the muddy water are discharged through the discharge port. For this reason, the dredging and mud that overflowed without entering the convex part do not flow to the side of the widthwise end of the second leveling board, and the dredging and mud are removed after the direction of the working of the tilling work machine. It is possible to flow reliably to the side, and the overlapping portion of the tillage work can be surely and leveled.

According to tilling machine according to the present invention, by providing the cutout portion extending in the longitudinal direction inclined to the central portion side of the second leveling plate in a plan view in the rear end portion of the second leveling plate, all of the field surface It is possible to provide a tilling machine capable of leveling the soil.

  Hereinafter, a tillage working machine according to the present invention will be described with reference to FIGS. The tillage working machine of the present embodiment will be described by taking a tractor-mounted side drive type scraper as an example. For convenience of explanation, the directions shown in FIG. 1 (plan view) will be described below as the front-rear direction and the left-right direction.

  As shown in FIG. 1, the scraper 1 is attached to the rear portion of the traveling machine body 90 and proceeds with the traveling of the traveling machine body 90 to perform a scraping operation. The working machine is disposed at the center in the left-right direction. A main body 10, an extension work body 30 attached to both left and right ends of the extension work body so as to be rotatable in the vertical direction, and an auxiliary ground leveling plate attached to an outer end portion of the extension work body 30 in the left-right direction so as to be rotatable in the vertical direction. 40, and the work machine body 10 and the extended work bodies 30 and 30 have a three-part structure.

  At the front part of the work machine main body 10, a connecting part connected to a three-point link connecting mechanism provided at the rear part of the traveling machine body 90 is provided. Is done. A gear box 12 is provided at the front portion of the work machine body 10 so that power from the PTO shaft of the traveling machine body 90 is transmitted to the gear box 12 through power transmission means such as a universal joint.

  The work machine main body 10 has a tillage body (not shown) such as a rotary that performs tillage work, and the top of the tillage body is covered with a machine frame 13 that also serves as a cover body. A substantially plate-shaped leveling body 14 is provided at the rear end of the machine frame 13 so as to be pivotable in the vertical direction at the rear position of the tillage body and perform leveling work.

  The leveling body 14 includes a first leveling plate 15 having a substantially plate shape whose front end portion is pivotally connected to the rear end portion of the machine frame 13 and rotatable in the vertical direction, and a front end portion at the rear end portion of the first leveling plate 15. And a substantially plate-like second leveling plate 16 that can be pivoted in the vertical direction.

  The extension work bodies 30 disposed on the left and right sides have a symmetrical structure, and an extension tillage body (not shown) such as a rotary that extends the work width of the tillage body of the work machine body 10 to the side, and an extension tillage. An extended leveling body 31 that is positioned so as to be pivotable in the vertical direction at a rear position of the body and performs leveling work. The upper side of the extended tillage body is covered with an extension machine frame 35 that also serves as a cover body.

  The extended leveling body 31 is a substantially plate-like member that is attached to the rear end portion of the extension machine frame 35 so as to be rotatable in the vertical direction and performs leveling work. The extended leveling body 31 is joined to and connected to the outer end of the leveling body 14 when the extension work body 30 is deployed, and is separated from the outer end of the leveling body 14 when the extended leveling body 31 is folded. Thus, the joint with the leveling body 14 is released.

  The extended leveling body 31 includes a first extended leveling plate 32 having a substantially plate shape whose front end is pivotally connected to the rear end of the extension machine frame 35 and rotatable in the vertical direction, and the rear end of the first extended leveling plate 32. It has a substantially plate-like second extended leveling plate 33 that is pivotable in the vertical direction with the front end portion pivotally connected to the portion.

The auxiliary leveling plate 40 described above is attached to the outer end portion of the second leveling plate 33 of the extended leveling body 31 so as to be rotatable in the vertical direction. The auxiliary leveling plate 40 can be rotated about a pivot shaft provided at the outer end portion on the front side of the second extension leveling plate 33, and the outer side of the corresponding second extension leveling plate 33 when deployed. Assisting the leveling work of the second extension leveling plate 33 in the folded state (not in use), it is folded to the surface side of the second extension leveling plate 33 and overlaps the second extension leveling plate 33. . As described above, the extended leveling body 31 is joined to the leveling body 14 by joining to the outer end portion of the leveling body 14 when the extended working body 30 is deployed. At this time, the first leveling board 15 in the present invention is constituted by the first leveling board 15 in the leveling body 14 and the first extension leveling board 32 in the extended leveling body 31, and the second leveling board 16 and the extended leveling body in the leveling body 14. The second leveling plate 33 and the auxiliary leveling plate 40 at 31 constitute the second leveling plate in the present invention.

At the rear end portions of the second leveling plate 16 of the leveling body 14, the second extended leveling plate 33 of the extended leveling body 31, and the auxiliary leveling plate 40, notch portions arranged with a predetermined interval in the left-right direction are provided. A plurality are provided. As shown in FIG. 2A (perspective view) and FIG. 2B (rear view), the notch 50 has a substantially triangular shape in plan view, and includes a second leveling plate 16 and a second extended leveling plate. 33 and the auxiliary ground leveling plate 40 are portions opened at the lower portions of the convex portions 60, 60 ′, 60 ″ formed by pressing. That is, the notch 50 is an opening between the first side 51 and the second side 52 in the rear view.

In the present embodiment, the convex portions 60, 60 ', 60''is formed in a substantially triangular shape in plan view, a first side plate portion 61 extending in the longitudinal direction, than this to the central portion side of the second leveling plate 16 The second side plate portion 62 that is positioned and extends in the front-rear direction, the third side plate portion 63 that connects the front end portions of the side plate portions 61 and 62, and the upper end portions of the side plate portions 61, 62, and 63 are connected. And a top plate portion 64.

The convex portions 60, 60 ′ provided on the second leveling plate 16 and the second extended leveling plate 33 have different shapes, and the convex portions 60 ′, 60 provided on the second extended leveling plate 33 and the auxiliary leveling plate 40. '' Is substantially identical in shape. The convex portions 60 provided on the second leveling plate 16 have substantially the same lengths of the first side plate portion 61 and the second side plate portion 62, and are formed in a substantially isosceles triangle shape in plan view. For this reason, the notch part 50 opened to the lower part of this convex part 60 comprises substantially isosceles triangle shape, and the width direction of the 1st side part 51 which forms the oblique side of one side, and the 2nd leveling board 16 from this It has a second side part 52 that is located inside and forms the oblique side of the other side, and has a bilaterally symmetric structure with respect to the front-rear direction. The top plate portion 64 has a symmetrical structure with respect to the vertical direction, with the height on the second side plate portion side and that on the first side plate portion side having substantially the same dimensions. A substantially triangular discharge port 65 for discharging muddy water is formed at the center of the top plate portion 64.

  Thus, the notch 50 and the convex part 60 provided in the second leveling plate 16 extend in the front-rear direction, and the left and right sides of the top plate part 64 have the same height. When the main plate 16 moves forward in the field, the muddy water in the field flows through the notch 50 through the convex portion 60 and flows out from the convex portion 60 to a position just behind the second leveling plate 16.

As for convex part 60 'provided in the 2nd extension leveling board 33, the length of the 2nd side board part 62 is longer than that of the 1st side board part 61, and the direction where the 2nd side board part 62 extends is the 1st side board part 61. It is greatly inclined toward the center side of the second leveling plate 16 than that of the first leveling plate 16, and as a whole, tilts toward the center side of the second leveling plate 16 and extends in the front-rear direction in a plan view. For this reason, the notch 50 opened at the lower portion of the convex portion 60 ′ is a left-right asymmetric structure that is inclined in the center portion side of the second leveling plate 16 and extends in the front-rear direction, and forms a first side. The side part 51 and the second side part 52 on the other side located on the center side of the second leveling plate 16 are formed. The top plate portion 64 is inclined with the height of the second side plate portion larger than that of the first side plate portion, and has a left-right asymmetric structure with respect to the vertical direction. A substantially triangular discharge port 65 is formed at the center of the top plate portion 64.

  Thus, the convex portion 60 ′ provided on the second extended leveling plate 33 and the cutout portion 50 opened in the lower portion thereof are inclined toward the central portion side of the second leveling plate 16 in a plan view and extend in the front-rear direction. Since the top plate portion 64 is configured such that the inner side is higher than the outer side, when the second extended leveling plate 33 moves forward in the field, the muddy water in the field flows through the notch 50 and the convex portion 60 ′, and the convex portion 60. It flows out to the center part side of the 2nd leveling board 16 from '.

  Further, the convex portion 60 '' provided in the auxiliary leveling plate 40 and the cutout portion 50 opened in the lower portion are the convex portion 60 ′ provided in the second extended leveling plate 33 and the cutout portion opened in the lower portion. Since the structure is substantially the same as that of the portion 50, the description thereof is omitted. When the auxiliary leveling plate 40 having the convex portion 60 ″ and the cutout portion 50 opened at the lower part advances the farm field, the muddy water in the field flows through the cutout portion 50 and flows through the convex portion 60 ″. It flows out from the portion 60 ″ to the center side of the second leveling plate 16. The inclination of the convex portion 60 '' and the cutout portion 50 opened to the lower portion may be larger than the inclination of the convex portion 60 ′ and the cutout portion 50 provided on the second extended leveling plate 33 described above. .

  When the scraper 1 having such convex portions 60, 60 ′, 60 ″ and the cutout portion 50 moves forward, the muddy water in the field is second ground leveling plate 16 as shown in FIG. 3 (plan view). In the rear side of the second leveling plate 33 and the auxiliary leveling plate 40, the second leveling plate 16 and the auxiliary leveling plate 40 flow obliquely rearward. Therefore, the auxiliary ground leveling plate 40 or the auxiliary ground leveling plate 40 and the second extended leveling leveling plate 33 are adjacent to the unprocessed field adjacent by the scraper 1 so that they overlap the end of the processed field F that has already been scraped. When F ′ is scraped, the muddy water in the field that flows backward from the auxiliary leveling plate 40 or the second extended leveling plate 33 is inclined to the center side of the second leveling plate 16 and flows into the untreated field F ′. The existing wrinkles W are not pushed back into the field F ′ immediately after the processing by the muddy water flowing obliquely rearward and enter the overlapping portion Fp. For this reason, the state of the superposed portion Fp that is cleanly leveled is maintained, and as a result, the entire field surface can be leveled.

In the scraper 1 of the above-described embodiment (FIG. 1) , the second extended leveling plate 33 is attached to the end of the second leveling plate 16, and the auxiliary leveling plate 40 is further connected to the end of the second extended leveling plate 33. Although shown in FIG. 4 (plan view), even in the scraper 1 ′ having a structure in which the auxiliary leveling plate 40 is rotatably attached to the end of the second leveling plate 16, as shown in FIG. Good. In addition, since the machine 1 'has substantially the same structure as the machine 1 described above, the same reference numerals are given to the same aspects as the machine 1, and the description thereof is omitted. In this scraper 1 ′ , notches and protrusions 60 provided in the second leveling plate 16, which are provided in the middle portion of the second leveling plate 16, extend in the front-rear direction, and the left and right sides of the second leveling plate 16. Those provided at both ends are inclined toward the center of the second leveling plate 16.

  In the scraper 1 ′ configured as described above, the notch portions and the convex portions 60, 60 ″ provided in the second leveling plate 16 and the auxiliary leveling plate 40 are inclined toward the center side of the second leveling plate 16. Therefore, the same effect as in the case of the above-described scraper 1, that is, it is possible to level the land on the field surface evenly by leveling the field overlapping area cleanly.

Further, in the scraper 1 shown in FIG. 1, a case has been shown in which the notches and the protrusions 60 provided on the second leveling plate 16 all extend straight in the front-rear direction, but the second leveling plate shown in FIG. 4. As shown in FIG. 16, the notch and the protrusion located in the middle in the left-right direction of the second leveling plate 16 extend straight in the front-rear direction, and the notch and the protrusion on the end side are inclined toward the center. It may be formed. In addition, in the scissors 1, 1 ′ shown in FIG. 1 and FIG. 4, at least the notch portion and the convex portion provided in the auxiliary leveling plate 40 are formed so as to incline toward the center side of the second leveling plate 33. Also good. A plurality of unillustrated drawings extending in the front-rear direction on the bottom surface of at least one of the second leveling plate 16, the second extended leveling plate 33, and the auxiliary leveling plate 40 in order to improve the penetration property of straw and the like into the field. May be provided. Further, when a rake is provided on the bottom surface of the second leveling plate 16, the rake extends in the front-rear direction and is inclined to the center side of the second leveling plate 16, so that the flow of dredging water and mud flowing backward You may control.

The top view of the scraper concerning one embodiment of the present invention is shown. The notch part and convex part which were provided in the leveling board of this scraper are shown, The figure (a) is a perspective view of a notch part and a convex part, The figure (b) is a notch part and a convex part. FIG. The top view of the back part of the scraper for demonstrating the flow of muddy water is shown. The top view of the scraper concerning other embodiment of this invention is shown. The rear view of the conventional scraper is shown.

Explanation of symbols

1,1 'plowing machine (cultivation machine)
15 First leveling board (first leveling board)
16 Second leveling board (second leveling board)
32 First extension leveling board ( first leveling board)
33 Second extended leveling board ( second leveling board)
40 Auxiliary leveling board ( second leveling board)
50 cutout portion 51 first side portion 52 second side portion 60, 60 ', 60''convex portion 61 first side plate portion 62 second side plate portion 64 top plate portion 65 discharge port 90 traveling machine body

Claims (4)

A tilling rotor mounted on the rear part of the traveling machine body and rotated by power transmitted from the traveling machine body, a first ground leveling plate rotatably supported on the rear side in the traveling direction of the tilling rotor, and a rear side of the first leveling board A second leveling plate supported rotatably at an end portion, and while the tilling rotor rotates, it proceeds with the traveling of the traveling machine body to perform the tilling work, and the first leveling plate and the second leveling plate. In a tilling work machine that leveles the field surface with a ground plane,
A notch portion extending in the front-rear direction in plan view is provided at the rear end portion of the second leveling plate, and the notch portion on the width direction end side of the second leveling plate is the second notch portion. Inclined to the center side of the leveling plate, and when the second leveling plate advances the field, the muddy water of the field flows out through the notch to the center side of the second leveling plate. Tillage work machine. Mounted on the rear of the traveling machine body, after the first leveling plate and the first ground leveling plate that is rotatably supported in the traveling direction rear side of the tilling rotor and the tilling rotor rotated by power transmitted from the vehicle body A second leveling plate supported rotatably at an end portion, and while the tilling rotor rotates, it proceeds with the traveling of the traveling machine body to perform the tilling work, and the first leveling plate and the second leveling plate. In a tilling work machine that leveles the field surface with a ground plane,
A notch extending in the front-rear direction is provided at the rear end of the second leveling plate,
The notch includes a first inclined largely and the first side portion, the central portion side of the second ground leveling plate than the first side portion with at the center portion side of the second ground leveling plate than this A tilling work machine having two side portions and having a left-right asymmetric structure with respect to the front-rear direction. Mounted on the rear of the traveling machine body, after the first leveling plate and the first ground leveling plate that is rotatably supported in the traveling direction rear side of the tilling rotor and the tilling rotor rotated by power transmitted from the vehicle body A second leveling plate supported rotatably at an end portion, and while the tilling rotor rotates, it proceeds with the traveling of the traveling machine body to perform the tilling work, and the first leveling plate and the second leveling plate. In a tilling work machine that leveles the field surface with a ground plane,
Protruding upwards at the rear end of the second leveling plate and providing a hollow convex portion,
The convex portion includes a first side plate portion extending in the front-rear direction, a second side plate portion extending in the longitudinal direction located at the central portion of the second ground leveling plate than this, the first side plate portion and the second A tilling work machine comprising: a top plate portion connecting between upper end portions of the side plate portions, the top plate portion being inclined such that the second side plate portion side is higher than the first side plate portion side.   The tilling work machine according to claim 3, wherein a discharge port for discharging a part of the muddy water of the field that has flowed into the convex portion is provided in the top plate portion.

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