Agricultural work machine

Abstract

To provide an agricultural work machine that enables appropriate earthing-up work.SOLUTION: An agricultural work machine 1 includes a tilling body 17 that performs tilling work, and a central left earthing-up plate 42 being an earthing-up body that performs earthing-up work in front of the tilling body 17. The central left earthing-up plate 42 has: an attachment part 71 attached to an attached part 62 of a machine body 16; and an earthing-up part 72 that performs earthing up while scraping soil of a soil risen part of a field in order to erase a travel mark of a tractor.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to an agricultural machine. [Background technology]

[0002] 2. Description of the Related Art Conventionally, an agricultural machine as described in, for example, Patent Document 1 below is known.

[0003] This conventional agricultural work machine is used by being coupled to the rear of a vehicle such as a tractor that can travel through farm fields, and is equipped with a tilling body that performs tilling work, a land leveling body that performs land leveling work behind the tilling body, and a plate-shaped soil piling body (soil piling board) that performs soil piling work in front of the tilling body. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Utility Model Application Publication No. 54-97406 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the above-mentioned conventional agricultural work machines, depending on the field conditions, for example, there may be a situation where the soil collector wraps around the soil in the field (including impurities such as straw and grass), and proper work may not be performed.

[0006] Therefore, one object of the present invention is to provide an agricultural work machine that can perform appropriate work. [Means for solving the problem]

[0007] An agricultural working machine according to an embodiment of the present invention comprises a tilling body that performs tilling work, a land leveling body that performs land leveling work behind the tilling body, and a soil piling body that performs soil piling work in front of the tilling body, and the soil piling body has a piling section that scoops up soil while piling it up.

[0008] In addition, the agricultural working machine according to an embodiment of the present invention comprises a tilling body that performs tilling work, a land leveling body that performs land leveling work behind the tilling body, and a soil piling body that performs soil piling work in front of the tilling body, and the soil piling body has a plate-shaped mounting portion that runs in the fore-and-aft direction and is attached to the mounting portion, and a plate-shaped soil piling portion that is provided on the mounting portion and scoops up the soil while piling it up. Effect of the Invention

[0009] According to an embodiment of the present invention, proper operation can be achieved. [Brief description of the drawings]

[0010] [Figure 1] 1 is a side view of an agricultural machine according to an embodiment of the present invention. FIG. [Diagram 2] FIG. 2 is a plan view of the above agricultural machine (including a rear view of a portion of the rear wheels of the tractor). [Diagram 3] FIG. [Figure 4] FIG. 3 is a partial cross-sectional view taken along line A in FIG. 2. [Diagram 5] FIG. [Figure 6] 1A is a front view of the mounding body of the agricultural machine, FIG. 1B is a side view of one side, FIG. 1C is a side view of the other side, and FIG. [Figure 7] (a) is a side view of the mound, (b) is a view from the direction of arrow A, and (c) is a view from the direction of arrow B. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] One embodiment of the present invention will be described with reference to FIGS.

[0012] In the figure, reference numeral 1 denotes an agricultural work machine. This agricultural work machine 1 is connected to the rear of a tractor 2, which is a vehicle that can travel on a field, for example. As the tractor 2 travels, it moves forward (in the direction of travel) on the field while performing agricultural work, such as plowing (land leveling).

[0013] The tractor 2 comprises a tractor body (not shown) with front wheels (not shown) provided on both the left and right sides of the front of the tractor body, and rear wheels (tires, crawlers, etc.) 3 provided on both the left and right sides of the rear of the tractor body. In addition, a three-point linkage (not shown) for connecting (mounting) the agricultural work machine 1 is provided at the rear of the tractor body.

[0014] When the left and right rear wheels 3 are driven and rotated by the power of the engine mounted on the tractor body and the tractor 2 moves over the field, the passage of the rear wheels (the running parts) 3 forms a concave groove (a groove left by the running track) 5 and convex soil mounds 6 on both sides of the concave groove (a groove left by the running track) 5 on the field surface (see Figure 2).

[0015] The agricultural working machine 1 is, for example, a folding working machine with a foldable three-part structure, and is equipped with a central working unit 11 that is detachably connected (mounted) to a three-point link section at the rear of the tractor 2, left and right extension working units 12 that are provided at both left and right ends of the central working unit 11 so as to be rotatable up and down, and an electric hydraulic cylinder 13 which is a rotation drive means for rotating the extension working units 12 up and down relative to the central working unit 11.

[0016] The central working unit 11 comprises a body 16 which is detachably connected to the three-point link section at the rear of the tractor 2, a tilling body 17 which is rotatably mounted on the body 16 and performs tilling work while rotating in a predetermined direction, and a land leveling body 18 which is rotatably mounted on the body 16 in the vertical direction and performs land leveling work behind the tilling body 17.

[0017] At both left and right ends of the body 16, an extension body 20 of the extension working unit 12 is provided so as to be rotatable in the vertical direction, and each extension body 20 is provided with a tilling body 17 and a land leveling body 18, similar to the central working unit 11.

[0018] Each of the tilling bodies 17 of the three working units 11, 12 has a tilling shaft 21 and tilling tines 22, and each of the leveling bodies 18 of the three working units 11, 12 has a leveling plate (first leveling member) 23 and a rake (second leveling member) 24. Each leveling plate 23 is attached to the rear end of a tilling cover part 30 that covers the upper part of the corresponding tilling body 17 so as to be rotatable in the vertical direction. A foldable extension rake 25 is attached to the rake 24 of the extension working unit 12.

[0019] The machine body 16 also has a three-point connection part 31 that is detachably connected to the three-point link part of the tractor 2. The three-point connection part 31 is composed of a top mast 33 having a top pin 32, and a pair of left and right lower arms 35 each having a lower pin 34.

[0020] Furthermore, the machine body 16 has an input shaft support section 37 that rotatably supports an input shaft 36 that is connected via a joint to the PTO shaft of the tractor 2. A cylindrical frame section (frame pipe that is the main frame) 38 that is elongated in the left-right direction is attached to both the left and right sides of the input shaft support section 37.

[0021] On the other hand, the central working unit 11 is provided at a predetermined position (a position corresponding to the mounded soil portion) at the front end of the body 16, and is equipped with a plurality of soil piling bodies 41, 42, 43, 44 which perform soil piling work in front of the tilling body 17, i.e., piling the soil (including miscellaneous materials such as straw and grass) from the mounded soil portion 6 of the field toward the furrow portion 5 in order to erase the tracks (wheel tracks) of the tractor 2 in the field.

[0022] In other words, to the front end of the body 16 of the central working unit 11, there are attached a plurality of plate-shaped soil-piling bodies (soil-piling boards), for example four (two on the left and right corresponding to the left rear wheel and two on the left and right corresponding to the right rear wheel, for a total of four), spaced apart in the left-right direction, such as a left soil-piling board 41, a central left soil-piling board 42, a central right soil-piling board 43 and a right soil-piling board 44, which are used for soil-piling work to backfill the groove 5 formed in the field as the tractor 2 moves.

[0023] Of these four soil piling boards 41 to 44, the left soil piling board (left outer soil piling body) 41 and the right soil piling board (right outer soil piling body) 44 are configured symmetrically to each other, and the central left soil piling board (left inner soil piling body) 42 and the central right soil piling board (right inner soil piling body) 43 are configured symmetrically to each other.

[0024] Therefore, the specific configuration will be mainly described below for the left pile-up plate 41 and the central left pile-up plate 42 arranged on the left side of the central working unit 11 so as to correspond to the left rear wheel 3 of the tractor 2. Note that the right pile-up plate 44 and the central right pile-up plate 43 on the right side are given the same reference numerals as those on the left side, and their description will be omitted.

[0025] As shown in Figures 3 and 5, the left soil piling plate 41 has an attachment plate portion 53 that is attached to an attachment portion 52 of the body 16 by, for example, attachment means (bolts and nuts, etc.) 51 so that the vertical position can be adjusted, and a soil piling plate portion 54 that is connected to the front end of the attachment plate portion 53 in a curved manner so as to face outward (to the left) and pushes soil from the soil mound portion 6 of the field toward the trench portion 5.

[0026] The mounting portion 52 is attached to a support frame 57 of the tillage cover portion 30 by mounting means (bolts, nuts, etc.) 56 so that its left-right position can be adjusted. A plurality of mounting holes 58 aligned in the left-right direction are formed in the support frame 57, and the left-right position of the mounting portion 52 can be appropriately adjusted by selecting one of the mounting holes 58.

[0027] As shown in Figs. 3 to 5, the center left soil-retaining plate 42 is attached to a mounting portion 62 of the machine body 16 by, for example, mounting means (bolts and nuts, etc.).

[0028] The mounting portion 62 is made of, for example, a substantially U-shaped member and has a contact portion 66 that comes into contact with the tillage cover portion 30, and this contact portion 66 is welded and fixed to the tillage cover portion 30. In addition, the mounting portion 62 is fixedly attached to the front end portion of an attachment arm 63 that is fixed to the frame portion 38 of the machine body 16 by attachment means 64 (bolts, nuts, etc.).

[0029] The central left soil-piling plate 42 is attached to the mounting portion 62 by the mounting means 61 so that its vertical position can be adjusted, and has a flat mounting portion (mounting plate portion) 71 positioned vertically along the front-to-rear direction, and a bent plate-like soil-piling portion (soil-piling plate portion) 72 connected to the lower end of the flat mounting portion 71 along the front-to-rear direction in a curved manner so as to face outward (to the left) and which scoops up the soil from the soil mound portion 6 of the field diagonally upwards while pushing it toward the trench portion 5.

[0030] Here, the mounting portion (mounting base) 71 has a lower inclined end portion 76 on the underside of the front end portion, which is inclined (including curved; the same applies below) so that the lower end is located further rearward in a side view, and has an upper inclined end portion 77 on the upper side of the front end portion, which is inclined so that the upper end is located further rearward in a side view. In other words, the front end portion of this mounting portion 71 is formed so as to be substantially L-shaped (substantially curved) that is convex toward the front in a side view (see FIG. 4). Also, the mounting portion 71 has a plurality of bolt holes 78, which are mounting holes, formed at intervals from one another.

[0031] The pile-up portion 72 has a flat first pile-up plate portion 81 bent at an angle to the left side (outer surface side) with a linear first fold line L1 as a base end with respect to the flat mounting portion 71 along a vertical plane, and a flat second pile-up plate portion 82 bent at an angle to the left side (outer surface side) with a linear second fold line L2 as a base end with respect to the first pile-up plate portion 81. The second pile-up plate portion 82 is formed larger than the first pile-up plate portion 81. The distance between the first fold line L1 and the second fold line L2 gradually increases from the front end side to the rear end side of the first pile-up plate portion 81 in a side view.

[0032] The first angle α, which is the angle between the mounting portion 71 and the first soil-pile plate portion 81, is, for example, approximately 150 degrees (see FIG. 7(b)). The second angle β, which is the angle between the first soil-pile plate portion 81 and the second soil-pile plate portion 82, is, for example, approximately 160 degrees (see FIG. 7(c)). The sum of the first angle α and the second angle β exceeds 270 degrees. Note that in the illustrated example, the first angle α and the second angle β are different angles, but they may also be the same angle.

[0033] As shown in FIG. 6(a), the first and second soil piling plate sections 81 and 82 have inclined end portions 81a and 82a at their rear ends. In front view, the rear end portion 81a of the first soil piling plate section 81 and the rear end portion 82a of the second soil piling plate section 82 are located on the same straight line (including approximately the same straight line) along a direction inclined at a predetermined angle to the left-right direction. This makes it difficult for the rear end portions 81a and 82a to catch debris in the soil that has returned to the front due to the rotation of the tilling body 17, and even if debris does get caught, it is swept away by the flow of soil. Note that the configuration is not limited to that shown in FIG. 6(a), and may be, for example, a configuration in which the angle between the rear end portion 81a of the first soil piling plate section 81 and the rear end portion 82a of the second soil piling plate section 82 in front view is a predetermined angle less than 180 degrees (for example, approximately 168 degrees).

[0034] 4, the soil-piling portion 72 has a front portion 83 located forward of the front end position of the attachment portion 62 in a side view, i.e., the position of the front surface 62a of the attachment portion 62, and a rear portion 84 located rearward of the position of the front surface 62a of the attachment portion 62 (the front end position of the attachment portion) in a side view. The rear portion 84 is formed larger than the front portion 83. In other words, the area of ​​the rear portion 84 is larger than the area of ​​the front portion 83.

[0035] The rear end of the soil piling part 72 is disposed below the tilling cover part 30 so as to be located close to the tilling body 17. The distance H between the rear end position of the soil piling part 72 and the front end position of the rotation trajectory of the tilling body 17 is, for example, 15 mm to 200 mm, and preferably, for example, approximately 20 mm.

[0036] Next, the operation of the agricultural machine 1 will be described.

[0037] For example, when the agricultural work machine 1 in the unfolded state shown in Figure 2 is moved forward by the tractor 2, the tilling bodies 17 of the central working unit 11 and the left and right extension working units 12 perform tilling work, and behind them, the leveling body 18 performs land leveling work.

[0038] In addition, in front of the tilling body 17, a left soil piling plate 41, a central left soil piling plate 42, a central right soil piling plate 43 and a right soil piling plate 44 perform soil piling work at positions corresponding to each soil mound 6 formed by the passage of the rear wheels 3 of the tractor 2.

[0039] In other words, these soil piling plates 41 to 44 move the soil of the mounded portion 6 in the farm field toward the furrow portion 5, thereby backfilling the furrow portion 5 formed by the travel trail and leveling the farm surface.

[0040] At this time, the pile-up portions 72 of the central left pile board 42 and the central right pile board 43 located at the center of the agricultural machine 1 scoop up the soil from the mounded portion 6 of the field diagonally upwards while pushing it toward the trench portion 5, so that excessive soil is not taken on, and as a result, appropriate pile-up work can be performed.

[0041] Also, for example, when the soil is hard, the piling section 72 creates a smooth flow that pushes the soil (muddy water) toward the wheel tracks on the groove section 5 side, but when the soil is soft (when the soil becomes more like a fluid and moves back toward the wheel tracks on its own), the piling section 72 also creates a flow that allows the soil to easily escape to the rear side without pushing it too close to the wheel tracks.

[0042] Furthermore, the area sandwiched between the central left soil piling plate 42 and the central right soil piling plate 43, i.e., the forward protruding area R between these two soil piling plates 42, 43, is narrower than the forward protruding area sandwiched, for example, between the central left soil piling plate that is symmetrical to the left soil piling plate 41 and the central right soil piling plate that is symmetrical to the right soil piling plate 44, and therefore the amount of soil that remains in the forward protruding area R is reduced.

[0043] Furthermore, with this type of agricultural work machine 1, the central left soil-piling plate 42 and the central right soil-piling plate 43 have an attachment part 71 that is detachably attached to the mounting part 62 of the body 16 of the central working unit 11, and a soil-piling part 72 that is integrally connected to this attachment part 71 and faces diagonally upwards, scooping up soil from the mounded part 6 of the field and pushing it towards the trench part 5, so that appropriate soil-piling work can be performed and the evenness of the field surface can be improved.

[0044] In addition, the mounting portion 71 has a lower inclined end portion (crushing edge) 76 on the underside of the front end portion which is inclined so that it is positioned further rearward as it approaches the lower end when viewed from the side, so that the lower inclined end portion 76 can crush the mounded soil portion 6, thereby enabling more appropriate soil piling work to be performed.

[0045] Furthermore, mounting portion 71 has an upper inclined end portion (front inclined portion) 77 at the upper front end portion which is inclined so that the upper end is positioned further rearward in a side view, so that debris is less likely to get caught on upper inclined end portion 77, and by suppressing the accumulation of debris, soil, etc., it is possible to reduce forward pushing by debris and falling of debris while driving.

[0046] In addition, since the soil-piling portion 72 has a first soil-piling plate portion 81 bent relative to the mounting portion 71, and a second soil-piling plate portion 82 bent relative to this first soil-piling plate portion 81, soil can be caused to flow in two directions, allowing more appropriate soil-piling work to be performed.

[0047] The agricultural work machine is not limited to a folding work machine (harrow) having a foldable three-part structure, and may be, for example, a non-foldable single-piece harrow or rotary.

[0048] In addition, it is preferable that the soil-returning body be adjustable in its left and right position so as to correspond to the position of the tractor wheels, for example, and it may also be adjustable in its up and down position and front and rear position, etc.

[0049] Furthermore, the diagonally upward soil-pile portion of the soil-pile body is not limited to being formed into a bent plate shape by, for example, bevel bending, but may be formed into a curved plate shape by drawing a curve using a mold, for example.

[0050] Furthermore, the soil-piling section is not limited to a configuration having two soil-piling plate sections (soil-piling surface sections) and may be configured, for example, to have three or more soil-piling plate sections, or may be configured to consist of only one soil-piling plate section (one surface).

[0051] Furthermore, the shape of the portion to which the mounting portion of the soil collector is attached may be arbitrary, and the method of attachment may also be arbitrary. [Explanation of symbols]

[0052] 1 Agricultural machinery 17 Cultivation body 18 Ground leveling body 42 The earth-pile board on the left center (the inner earth-pile on the left) 43 The center right earth-relief board (right inner earth-relief body) 62 Mounting part 71 Mounting part 72 Earthing Section 76 Lower sloped end 77 Upper sloped end 81 First soil-retaining board section 82 Second soil-retaining board section 83 Front part 84 Posterior part

Claims

1. A tilling body that does tilling work, A leveling body that performs leveling work behind the tilling body; A soil piling body that performs soil piling work in front of the tilling body, The soil piling body has a soil piling part that scoops up soil while piling it up. Agricultural machinery characterized by:

2. A tilling body that does tilling work, A leveling body that performs leveling work behind the tilling body; A soil piling body that performs soil piling work in front of the tilling body, The soil collector is a plate-shaped mounting portion that is attached to the mounting portion and extends in the front-rear direction; and a plate-shaped soil gathering portion that is provided on the mounting portion and scoops up and gathers soil. Agricultural machinery characterized by:

3. The mounting portion has a lower inclined end portion at a front end portion, the lower end portion being inclined so as to be positioned rearward as viewed from the side.

3. The agricultural machine according to claim 2.

4. The mounting portion has an upper inclined end portion at a front end portion, the upper end portion being inclined so as to be positioned rearward as viewed from the side.

4. The agricultural machine according to claim 2 or 3.

5. The soil piling section includes: a front portion located forward of a front end position of the attachment portion in a side view; a rear portion located rearward of a front end position of the attachment portion in a side view, The rear portion is larger than the front portion.

4. The agricultural machine according to claim 2 or 3.

6. The soil piling portion is provided so as to face obliquely upward.

3. The agricultural machine according to claim 1 or 2.

7. The soil piling section includes: A first soil-retaining plate portion; A second soil-collecting plate portion bent relative to the first soil-collecting plate portion.

3. The agricultural machine according to claim 1 or 2.

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