JP5204495B2 - Agricultural machine - Google Patents

Description

  The present invention relates to an agricultural machine such as a scraper having a tilled body and a leveling body.

  DESCRIPTION OF RELATED ART Conventionally, the agricultural working machine described in the following patent document 1, for example is known.

This conventional farming machine includes a cultivating body that performs tilling work and a leveling body that performs leveling work behind the cultivating body, and the leveling body includes a first leveling plate and a second leveling plate. Yes. And the hollow convex part which protrudes upwards is provided in the rear-end part of the 2nd leveling board, this convex part is the 1st side board part extended in the front-back direction, and a 2nd leveling board rather than this 1st side board part A second side plate portion extending in the front-rear direction and a top plate portion connecting the upper end portions of the first side plate portion and the second side plate portion, and the top plate portion is a second side plate. The part side is inclined so as to be higher than the first side plate part side.
JP 2007-222130 A

  However, in the conventional agricultural machine, for example, in the case of soil that is hard to be crushed, such as strong clay, there is a risk that a soil mass may remain on the field surface even if leveling is performed with a leveling body.

  The present invention has been made in view of the above points. For example, even in a soil field that is hard to be crushed, such as strong clay, no soil mass remains on the field surface, and a desired muddy water layer is formed on the field surface. An object of the present invention is to provide an agricultural machine that can efficiently form a farm.

The agricultural working machine according to claim 1 includes a cultivating body that performs tilling work and a leveling body that performs leveling work behind the cultivating body, and the leveling body is formed in a substantially plate shape having a longitudinal direction in the left-right direction. The leveling main body plate portion that performs leveling work in a horizontal posture and the rear end portion of the leveling main body plate portion are arranged side by side in close proximity to each other along the left-right direction, from the lower surface of the leveling main body plate portion. have a plurality of protrusions protruding downward, each protrusion has a right and left inclined side plates an inverted substantially V-shape in rear view, a connecting plate for connecting the lower portion mutual left and right inclined side plates It is comprised by .

  The farm work machine according to claim 2 is the farm work machine according to claim 1, wherein the leveling body is formed in a portion between adjacent projecting portions of the rear end portion of the leveling main body plate portion, and is open toward the rear. It has a notch part.

The agricultural machine according to claim 3 is the agricultural machine according to claim 1 or 2, wherein the connecting plate of each protruding portion is an inclined plate portion inclined downward from the front end side toward the rear end side, and And a horizontal plate portion connected to the rear end portion.

  According to the first aspect of the present invention, since the soil mass on the field surface can be effectively crushed by the plurality of protrusions, the soil mass remains as it is on the field surface even in a soil field that is difficult to break up, such as strong clay. A desired mud layer can be efficiently formed on the field surface without remaining.

  According to the invention which concerns on Claim 2, a desired muddy water layer can be formed still more efficiently in the field surface by making muddy water flow out from a some notch part.

  An embodiment of an agricultural machine according to the present invention will be described with reference to the drawings.

  In FIG. 1, reference numeral 1 denotes an agricultural machine. The agricultural machine 1 is a scraper used by being connected to the rear part of a tractor (not shown) that is a traveling vehicle. And the agricultural working machine 1 performs the scraping work while moving the agricultural field such as a paddy field forward (in the direction of the arrow in the figure) by running the tractor while being connected to the rear part of the tractor.

  The farm work machine 1 includes a machine body 2 connected to a three-point link part (work machine lifting device) at the rear of the tractor. Between the chain case part 3 and the bracket part 4 located on both the left and right sides of the machine body 2, a tilling rotary or the like that performs a tilling operation while receiving rotation from a power transmission means connected to an input shaft (not shown) and rotating in a predetermined direction. A tillage body (not shown) is rotatably provided. The tillage body has a tilling shaft that is longitudinal in the left-right direction and a plurality of tilling claws provided radially on the tilling shaft.

  The machine body 2 has a substantially arcuate plate-shaped tilling cover portion 5 that covers the upper portion of the tilling body, and follows the surface of the field behind the tilling body at the rear end portion of the tilling cover portion 5. Thus, a leveling body 7 for performing leveling work, that is, work for leveling the field surface while rotating in the vertical direction, is provided so as to be rotatable in the vertical direction via a rubber plate 8 which is an elastic plate.

  The leveling body 7 is a first flat ground plate having a substantially plate shape that is pivotally connected to the rear end portion of the tilling cover portion 5 via a rubber plate 8 and is rotatable about the front end side in the vertical direction. Level plate 11 and a substantially flat plate-like second leveling plate (rake) 12 having a front end connected to the rear end of the first leveling plate 11 so as to be rotatable about a horizontal axis (not shown). And have.

  In addition, a substantially plate-like extended leveling plate (extended rake) 13 is provided at both left and right ends of the second leveling plate 12 so as to be rotatable between a working position and a non-working position about a shaft 14 in the front-rear direction. ing. Between the second leveling plate 12 and the extended leveling plate 13, a tension coil spring 15 that is an elastic body for positioning and fixing the extended leveling plate 13 at the working position and the non-working position is provided. The extended leveling plate 13 performs leveling work while being positioned and fixed at the work position on the side of the second leveling plate 12 at the time of work, and the non-work above the second leveling plate 12 so as not to be in the way when not working. Positioned and fixed in position.

  Here, the second leveling plate 12 of the leveling body 7 is formed in a substantially rectangular plate shape having a longitudinal direction in the left-right direction as shown in FIGS. 2 to 4 and is leveled in a horizontal posture along the field surface during work. The leveling main body plate portion 21 to be operated and the rear end portion of the leveling main body plate portion 21 are juxtaposed in parallel with each other along the left-right direction and project downward from the lower surface of the leveling main body plate portion 21. A plurality of protrusions 22 having a substantially mountain shape. That is, for example, the rear end portion of the leveling main body plate portion 21 has a plurality of downward projecting portions 22 having a substantially triangular shape having an apex angle on the front side and a base on the rear side in plan view, and the leveling main body plate portion 21. The projecting portions 22 are formed integrally with the leveling main body plate portion 21 by drawing, for example, from the one end portion in the left-right direction to the other end portion in the left-right direction.

  Each projecting portion 22 is composed of left and right inclined side plates 24 that are reversely substantially C-shaped in rear view, and a connecting plate 25 that connects the lower sides of the left and right inclined side plates 24. As shown in FIG. 4, the connecting plate 25 includes an inclined plate portion 26 that is inclined downward from the front end side toward the rear end side, and a horizontal plate portion 27 that is connected to the rear end portion of the inclined plate portion 26. have.

  Next, the operation and the like of the farm work machine 1 will be described.

  When performing a scraping operation using the agricultural machine 1, the left and right extension leveling plates 13 are rotated about the shaft 14 to the operation position and positioned and fixed in the operation state.

  In this state, when the whole farm work machine 1 is moved forward by the traveling of the tractor, the tilling work is carried out by the tillage body, and the first leveling board 11, the second leveling board 12 and the extended leveling board are behind the tilling body. Leveling work is performed at 13. At this time, for example, a soil block A on the surface of the field as shown in FIG. 4 is crushed by the protruding portion 22 of the second leveling plate 12.

  As described above, according to the agricultural machine 1, the soil block A on the surface of the field can be effectively crushed by the plurality of projecting portions 22 formed so as to project downward on the second leveling plate 12 of the leveling body 7. For example, even in a soil field that is hard to be crushed, such as strong clay, the clot A does not remain on the field surface, and a desired muddy water layer can be efficiently formed on the field surface. It is possible to reduce the stroke even in fields where it is necessary to repeat the above, and it is possible to improve work efficiency and reduce fuel consumption.

  In addition, since the muddy water on the field surface flows and diffuses along the grooves formed by the plurality of protrusions 22, the entire field surface is uniform and the soil lump does not appear on the surface, and the desired muddy water layer is formed. Can be reliably formed.

  In addition, as shown in FIG. 5, for example, the agricultural working machine 1 is provided with a central working portion 31 and a left and right end portion of the central working portion 31 so as to be rotatable. A foldable configuration including left and right extension working portions 32 that can be switched to each other is also possible.

  Each of the working units 31 and 32 of the foldable farming machine 1 is the rear end of the cultivation cover unit 5 that covers the upper part of the cultivation body 30 that performs the cultivation work while rotating in a predetermined direction, as shown in FIG. Each leveling body 7 includes a first leveling plate 11 and a second leveling plate 12. The extension leveling plate 13 is rotatably provided at the outer end portions of the left and right extension working portions 32.

  As shown in FIGS. 6 to 8, the second leveling plate 12 of each leveling body 7 is formed in a substantially rectangular plate shape having a longitudinal direction in the left-right direction, as shown in FIGS. The ground leveling main body plate part 21 that performs leveling work in a horizontal position along the surface of the field and the rear end part of the leveling main body plate part 21 are provided so as to be adjacent to each other at equal intervals along the left-right direction. And a plurality of substantially mountain-shaped projecting portions 22 projecting downward from the lower surface of the leveling main body plate portion 21, and each projecting portion 22 is composed of an inclined side plate 24 and a connecting plate 25, and the connecting plate 25 is inclined. A plate portion 26 and a horizontal plate portion 27 are provided.

  Further, unlike the one shown in FIG. 1 or the like, the second leveling plate 12 of each leveling body 7 faces forward from the rear end to the portion between the adjacent projecting portions 22 of the rear end portion of the leveling main body plate portion 21. And a plurality of cutout portions (ejectors) 35 that are formed in the cutout and open toward the rear. As shown in FIG. 6, each notch 35 is formed in a substantially triangular shape having an apex angle on the front side and a bottom side on the rear side in plan view. Note that the length dimension of the notch 35 in the front-rear direction is, for example, approximately half of the length dimension of the protrusion 22 in the front-rear direction.

  And according to such a farming machine 1, even if it is a soil field which is hard to be crushed, such as strong clay, the mud layer A does not remain on the field surface as it is, and a desired mud layer is efficiently formed on the field surface. In addition, the desired muddy water layer can be more efficiently formed on the field surface by causing the muddy water on the field surface to flow out from the plurality of notches 35.

  Further, the agricultural machine 1 may have a configuration in which a notch 35 is formed in the leveling main body plate portion 21 of the second leveling plate 12 shown in FIG. 1, for example, and the second leveling plate 12 having no notch 35 is shown in FIG. The structure applied to what is shown may be used.

  Furthermore, for example, the extended leveling plate 13 may have a leveling main body plate portion 21 and a protruding portion 22, or the extended leveling plate 13 may have a leveling main body plate portion 21, a protruding portion 22, and a notch 35.

It is a top view of the agricultural working machine which concerns on one embodiment of this invention. It is a rear view of the 2nd leveling board of an agricultural working machine same as the above. It is a rear view perspective view of a 2nd leveling board same as the above. It is sectional drawing of a 2nd leveling board same as the above. It is a rear view of the agricultural working machine which concerns on other embodiment of this invention. It is a top view of the 2nd leveling board of a farm working machine same as the above. It is a rear view of a 2nd leveling board same as the above. It is a rear view perspective view of a 2nd leveling board same as the above.

1 Agricultural machines 7 Leveling bodies
21 Leveling plate
22 Protrusion
24 inclined side plate
25 connecting plate
26 Inclined plate
27 Horizontal plate
30 Tillage
35 Notch

Claims (3)

A plowing body for plowing work,
With a leveling body that performs leveling work behind this tilled body,
The leveling body is:
A leveling main body plate portion that is formed in a substantially plate shape having a longitudinal direction in the left-right direction and performs leveling work in a horizontal posture;
The leveling along the lateral direction at the rear end portion of the main plate portion are arranged in close proximity at intervals, it has a plurality of protrusions projecting from beneath the lower surface of the ground leveling main plate portion,
Each of the protrusions is composed of left and right inclined side plates that are reversely substantially C-shaped in rear view, and a connecting plate that connects lower sides of the left and right inclined side plates. . 2. The agricultural machine according to claim 1, wherein the leveling body includes a plurality of cutout portions that are formed in a portion between adjacent projecting portions of the rear end portion of the leveling main body plate portion and open rearward. The connecting plate of each protruding portion has an inclined plate portion that is inclined downward from the front end side toward the rear end side, and a horizontal plate portion that is connected to the rear end portion of the inclined plate portion.
The agricultural machine according to claim 1 or 2, characterized in that.

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