Ridge upper surface roller, ridge formation means, and ridge plastering machine

Abstract

To provide a ridge plastering machine including a ridge upper surface roller capable of forming a robust ridge shoulder surface.SOLUTION: A ridge plastering machine 1 includes: banking means 3 that banks up soil; and ridge formation means 4 that compacts the banking formed by the banking means 3 to form a ridge. The ridge formation means 4 includes a ridge side surface formation body 6. A ridge upper surface roller 7 is provided in an end portion of the ridge side surface formation body 6. The ridge upper surface roller 7 includes: a ridge upper surface formation body 41 including a step part 43; and a ridge shoulder surface formation body 42 including a step part 55. The step part 55 of the ridge shoulder surface formation body 42 is not continuous from the step part 43 of the ridge upper surface formation body 41.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to an upper ridge roller used in a ridge coating machine, a ridge forming means, and a ridge coating machine. [Background technology]

[0002] A conventional ridge top surface roller is described in, for example, Patent Document 1 below. This conventional ridge top surface roller has a ridge top surface former that forms the ridge top surface while rotating in a predetermined direction, and a truncated conical ridge shoulder surface former (shoulder ridge leveling portion) with no steps is provided at the end of this ridge top surface former. In other words, the outer peripheral surface of this ridge shoulder surface former is formed in the shape of a truncated cone. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2013-230092 A (Fig. 7) Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the above-mentioned conventional ridge top surface roller, the outer surface of the ridge shoulder surface forming body is formed in a truncated cone shape, which may result in insufficient compaction of the soil by the ridge shoulder surface forming body.

[0005] The present invention has been made in consideration of the above points, and aims to provide a ridge top surface roller, ridge forming means, and ridge coating machine that can form a strong ridge shoulder surface. [Means for solving the problem]

[0006] The ridge top surface roller described in claim 1 is a ridge top surface roller used in a ridge coating machine, and is provided with a ridge top surface forming body having a step portion and a ridge shoulder surface forming body having a step portion, and the step portion of the ridge shoulder surface forming body is discontinuous with the step portion of the ridge top surface forming body.

[0007] The ridge top surface roller described in claim 2 is a ridge top surface roller used in a ridge coating machine, and comprises a ridge top surface forming body having a step portion and a ridge shoulder surface forming body having a step portion, the ridge shoulder surface forming body having a plurality of ridge shoulder surface forming portions positioned side by side in the rotational direction, the step portions of the ridge shoulder surface forming body being positioned between the ridge shoulder surface forming portions adjacent to each other in the rotational direction and being discontinuous with the step portions of the ridge top surface forming body.

[0008] The ridge-upper surface roller according to claim 3 is the ridge-upper surface roller according to claim 1 or 2, wherein the step portion of the ridge shoulder surface forming body is shifted in the rotation direction relative to the step portion of the ridge-upper surface forming body.

[0009] The ridge top surface roller described in claim 4 is a ridge top surface roller described in any one of claims 1 to 3, wherein the end portion of the step portion of the ridge shoulder surface forming body on the ridge top surface forming body side is located near a predetermined position between step portions of the ridge top surface forming body adjacent to each other in the rotational direction.

[0010] The ridge forming means described in claim 5 is a ridge forming means used in a ridge coating machine, and comprises a ridge side forming body having a step portion, a ridge upper surface forming body having a step portion, and a ridge shoulder surface forming body having a step portion, and the step portion of the ridge shoulder surface forming body is discontinuous with the step portion of the ridge upper surface forming body.

[0011] The ridge application machine according to claim 6 comprises banking means for piling up soil, and the ridge forming means according to claim 5 for compacting the banked soil formed by the banking means to form a ridge. [Effects of the Invention]

[0012] According to the present invention, a strong ridge shoulder surface can be formed. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a plan view of a ridge coating machine using an upper ridge surface roller according to an embodiment of the present invention. [Figure 2]FIG. 2 is a perspective view of a ridge forming means of the same ridge coating machine. [Figure 3] FIG. [Figure 4] 4 is a cross-sectional view taken along the line AA in FIG. 3. [Figure 5] FIG. 10 is a side view of the ridge top surface roller with the extension roller member removed. [Figure 6] FIG. [Figure 7] FIG. 10 is a diagram showing the height of the step portion of the ridge shoulder surface forming body of the same ridge upper surface roller. [Figure 8] FIG. 10 is a side view of a ridge forming means provided with a ridge top surface roller according to another embodiment of the present invention. [Figure 9] FIG. [Figure 10] FIG. 10 is a partial plan view of a ridge top surface roller according to still another embodiment of the present invention. [Figure 11] FIG. 10 is a diagram showing the height of the step portion of the ridge shoulder surface forming body of the same ridge upper surface roller. DETAILED DESCRIPTION OF THE INVENTION

[0014] A ridge coating machine using an upper ridge surface roller according to one embodiment of the present invention will be described with reference to FIGS.

[0015] In Figure 1, 1 is a ridge coater, which is connected to the rear of a tractor (not shown) that is a traveling vehicle, and performs ridge coating work while moving forward (in the direction of travel) in a forward work state as the tractor travels forward in the field. At the corners of the field, the ridge coater 1 is switched to a return work state and performs ridge coating work while moving backward (in the direction of travel) as the tractor travels backward.

[0016] The ridge application machine 1 comprises a body 2 that is detachably connected to a three-point link at the rear of the tractor, a soil-filling means (cultivation unit) 3 that is rotatably mounted on the body 2 and that plows the rice field surface and ridges (original ridges) while rotating in a predetermined direction to pile up the soil, and a ridge-forming means (disk unit) 4 that is rotatably mounted on the body 2 and that compacts the soil filled by the soil-filling means 3 while rotating in a predetermined direction to form a ridge (new ridge).

[0017] The ridge forming means 4 comprises a truncated cone-shaped (including approximately truncated cone-shaped; the same applies below) ridge side forming body 6 that rotates in a predetermined direction around a horizontal left-right rotation center axis X to compact the embankment and form an inclined ridge side, and a cylindrical (including approximately cylindrical; the same applies below) ridge top surface roller (spiral roller) 7 that is provided at the end of the reduced diameter side of the ridge side forming body 6 and rotates together with the ridge side forming body 6 around the rotation center axis X.

[0018] The ridge forming means 4 is driven to rotate about the central axis of rotation X based on power from the input shaft (not shown), and its peripheral speed is faster than the traveling speed of the tractor. A portion of the ridge side forming body 6 of the ridge forming means 4 is covered by a ridge forming means cover body (not shown), and the embankment means 3 is covered by an embankment means cover body 9. A ridge upper surface scraping means (not shown) for scraping the upper surface of the ridge is provided in front of the embankment means 3.

[0019] The machine body 2 has a machine frame 11 that is detachably connected to a three-point link at the rear of the tractor. An input shaft (not shown) is rotatably mounted on the machine frame 11, and the tractor's PTO shaft is connected to this input shaft via a joint. The banking means 3, ridge forming means 4, and ridge top surface scraping means are driven to rotate and perform work based on the power input by the input shaft. The banking means 3, ridge forming means 4, and ridge top surface scraping means make up the working section 10.

[0020] A movable machine frame 12 is connected to the machine frame 11 via connecting means 13, and the working section 10 is provided on this movable machine frame 12. The movable machine frame 12 is moved by the extension and contraction of cylinders 16, 17, which are telescopic drive means, and the ridge coating machine 1 can be selectively switched to the desired state (forward working state, storage state, and return working state). The movable machine frame 12 is also provided with gauge wheels (direction wheels) 18 that run in contact with the rice field surface.

[0021] The banking means 3 has a rotary shaft 21 in the front-rear direction that is driven to rotate based on power from the input shaft side, and this rotary shaft 21 has a plurality of tillage tines 22 attached thereto for banking.

[0022] The ridge forming means 4 has a left-right rotating shaft 26 that is driven to rotate based on power from the input shaft side, and a ridge side forming body 6 is attached to the tip of this rotating shaft 26, and a ridge top surface roller 7 is attached to the end of the reduced diameter side of this ridge side forming body 6.

[0023] The base end of the rotating shaft 26 is rotatably supported by a shaft support part 27 of the movable machine frame 12. A straight line passing through the axis of the rotating shaft 26 is the central axis of rotation (center of rotation) X, and the ridge side surface forming body 6 and the ridge upper surface roller 7 are driven to rotate (slip rotate) together around this central axis of rotation X.

[0024] 2 to 4, the ridge side forming body 6 is formed in a stepped truncated cone shape. This ridge side forming body 6 has a truncated cone-shaped base member 31, and an attachment part 30 on the rotation center side of this base member 31 is detachably attached to the tip of the rotation shaft 26.

[0025] A number of ridge side forming plates (face plates) 32, which are plate-shaped ridge side forming parts that compact the embankment by pushing it in on the rear side in the direction of rotation to form an inclined ridge side, are detachably attached to the outer peripheral surface (surface side) of the base member 31. Each ridge side forming plate 32 is formed, for example, in the shape of a fan-shaped curved plate that is convex on the outer surface. Each ridge side forming plate 32 is individually replaceable.

[0026] The multiple ridge side forming plates 32 are positioned side by side in the rotational direction and radially arranged around the rotational center axis X. Each ridge side forming plate 32 is positioned such that the distance from the rotational center axis X gradually increases from the front end toward the rear end in the rotational direction. In other words, each ridge side forming plate 32 is attached to the base member 31 such that the distance from the frusto-conical outer peripheral surface of the base member 31 increases toward the rear end in the rotational direction.

[0027] Between the two ridge side forming plates 32 adjacent to each other in the rotational direction, a longitudinal step portion 33 is located along the radial direction of the ridge side forming body 6. In other words, on the outer peripheral surface of the ridge side forming body 6, a plurality of linear step portions 33 are formed at the boundary portions of the ridge side forming plates 32. As a result, when the ridge side forming body 6 rotates, the working surface 34 on the outer surface on the rear side in the rotational direction of the ridge side forming plate 32 intermittently comes into contact with the embankment, thereby compacting it in a manner that pounding on the embankment.

[0028] The step portion 33 of the ridge side forming body 6 is located along the radial direction of an imaginary circle centered on the rotation central axis X in a side view (see FIG. 3). Furthermore, although not shown, the height dimension of the step portion 33 gradually decreases from the narrowed diameter end side of the ridge side forming body 6 toward the widened diameter end side, but is not limited to this and may be constant over the entire length, or conversely, may be larger toward the widened diameter end.

[0029] As shown in Figure 4, a connecting crown 36 and an intermediate flange 37 are detachably attached with bolts 38 to an attachment portion (boss portion) 30 on the rotation center side of a base member 31 of the ridge side forming body 6. A plurality of auxiliary plates 39 protrude from the outer peripheral surface of this attachment portion 30. Furthermore, an upper ridge surface roller 7 is detachably attached with bolts 40 to the annular intermediate flange (upper ridge surface roller attachment portion) 37 of the ridge side forming body 6.

[0030] As shown in Figures 2 to 7, the ridge top surface roller 7 comprises a cylindrical ridge top surface forming body 41 that forms a horizontal ridge top surface while rotating around the rotation center axis X, and a ridge shoulder surface forming body (shoulder part) 42 that is connected to the end (inner end which is one end in the axial direction) of this ridge top surface forming body 41 on the ridge side surface forming body 6 side and forms an inclined ridge shoulder surface (shoulder part) while rotating together with the ridge top surface forming body 41 around the rotation center axis X.

[0031] The ridge-top-surface forming body 41 is formed in a stepped cylindrical shape. That is, multiple spiral stepped portions 43 are formed protrudingly on the outer peripheral surface of the ridge-top-surface forming body 41. As a result, when the ridge-top-surface forming body 41 rotates, it compacts the embankment on the ridge top surface of the original ridge and moves a portion of the embankment toward the ridge shoulder surface forming body 42 (one end in the axial direction). In other words, when the ridge-top-surface forming body 41 rotates about the rotation center axis X, it compacts the embankment to form the ridge top surface and supplies a portion of the embankment toward the ridge shoulder surface forming body 42. The stepped portions 43 of the ridge-top-surface forming body 41 are formed in a spiral shape that moves forward in the rotation direction as it moves away from the ridge shoulder surface forming body 42.

[0032] The ridge top surface forming body 41 also has a cylindrical roller member 46 located on the ridge shoulder surface forming body 42 side, a cylindrical extension roller member 47 detachably attached to the outer end of this roller member 46 (the end opposite the ridge shoulder surface forming body 42 side) with attachment means (e.g., bolts and nuts) 49, and a disk-shaped cover member 48 detachably attached to the outer end of this extension roller member 47 with attachment means (e.g., bolts and nuts) 50. The ridge shoulder surface forming body 42 is provided integrally with the inner end of the roller member 46.

[0033] The roller member 46 has a mounting flange 45, which serves as a mounting portion, on its inner end side, and this mounting flange 45 is attached to the intermediate flange 37 with a bolt 40. The worker performing the installation work can operate the bolt 40 through an opening 44 (see FIG. 5).

[0034] The ridge shoulder surface forming body 42 is formed in a stepped truncated cone shape, similar to the ridge side surface forming body 6. In other words, the ridge shoulder surface forming body 42 is formed in a truncated cone shape that gradually widens in diameter toward the ridge side surface forming body 6. The ridge shoulder surface forming body 42 has a plurality of ridge shoulder surface forming plates 51, which are plate-shaped ridge shoulder surface forming parts, that compact the embankment (including the embankment supplied by the ridge top surface forming body 41) on the rear side in the rotation direction to form an inclined ridge shoulder surface.

[0035] The number of ridge shoulder surface forming plates 51 is the same as the number of ridge side surface forming plates 32 of the ridge side surface forming body 6. The base ends (narrower ends) of the ridge side surface forming plates 32 overlap with the ridge shoulder surface forming plates 51, and the outer surfaces of the base ends of the ridge side surface forming plates 32 are covered by the ridge shoulder surface forming plates 51. In this way, the ridge shoulder surface forming body 42 is connected to the narrower diameter end of the ridge side surface forming body 6, and the ridge top surface forming body 41 is connected to the narrower diameter end of this ridge shoulder surface forming body 42.

[0036] Each ridge-shoulder surface forming plate 51 is formed, for example, as a curved plate that is slightly elongated in the rotation direction and convex toward the outer surface. Furthermore, the ridge-shoulder surface forming plate 51 is bent in stages at multiple locations along, for example, two (or one or more) circumferential folding lines 52, 53. That is, the ridge-shoulder surface forming plate 51 has a first plate portion 51a, a second plate portion 51b, and a third plate portion 51c, each of which has a different inclination angle relative to the rotation center axis X (see FIG. 6).

[0037] Of the first plate portion 51a, second plate portion 51b, and third plate portion 51c, the third plate portion 51c has the largest inclination angle, but this inclination angle is smaller than the inclination angle of the ridge side surface forming plate 32. In addition, a triangular notch 54 is formed on the rear side of the third plate portion 51c in the rotation direction. Note that the ridge shoulder surface forming plate 51 may be bent into a continuous curved surface, for example, without having the fold lines 52 and 53.

[0038] The multiple ridge shoulder surface forming plates 51 are positioned side by side in the rotation direction to correspond to the ridge side surface forming plates 32, and are positioned radially around the rotation central axis X. Similarly to the ridge side surface forming plates 32, each ridge shoulder surface forming plate 51 is positioned so that the distance from the rotation central axis X gradually increases from the front end toward the rear end in the rotation direction (see FIG. 7). The two-dot chain line in FIG. 7 is part of an imaginary circle centered on the rotation central axis X.

[0039] Between the two ridge shoulder surface forming plates 51 adjacent to each other in the rotational direction, there is located a longitudinal step 55 along the radial direction of the ridge shoulder surface forming body 42. In other words, the two ridge shoulder surface forming plates 51 adjacent to each other in the rotational direction are integrally connected via the step 55, which also serves as a connecting part. For this reason, like the ridge side surface forming body 6, the ridge shoulder surface forming body 42 compacts the embankment by pounding it down as the working surface 56 on the outer surface on the rear side in the rotational direction of the ridge shoulder surface forming plate 51 intermittently comes into contact with the embankment during rotation.

[0040] Here, the step portion 55 of the ridge shoulder surface forming body 42 is positioned so as to be continuous with the step portion 33 of the ridge side surface forming body 6 in a side view, and is positioned in a straight line (parallel) to the step portion 33 of the ridge side surface forming body 6 (see Figure 3). The step portion 55 of the ridge shoulder surface forming body 42 is discontinuous with the step portion 43 of the ridge upper surface forming body 41. In other words, the step portion 55 of the ridge shoulder surface forming body 42 is offset by a predetermined distance in the rotational direction from the step portion 43 of the ridge upper surface forming body 41, and the end of the step portion 55 on the ridge upper surface forming body 41 side is positioned near the center position between the two step portions 43 that are adjacent to each other in the rotational direction.

[0041] At least a portion of the step portion 55 of the ridge shoulder surface forming body 42 overlaps with the step portion 33 of the ridge side surface forming body 6. Furthermore, an end portion 55a of this step portion 55 opposite the ridge top surface forming body 41 side is integrally formed with the front end of the third plate portion 51c in the rotational direction, and faces the notch portion 54 on the front side in the rotational direction.

[0042] The height dimension H of the step portion 55 of the ridge shoulder surface forming body 42 is, for example, a constant dimension over the entire length, for example, 2 mm or more and not more than the maximum height dimension of the step portion 33 of the ridge side surface forming body 6, and preferably, for example, 3 mm (see FIG. 7). Note that, for example, the height dimension H of the step portion 55 is not constant, and may be increased or decreased depending on the height dimension of the step portion 33.

[0043] The width dimension (axial length dimension) L of the ridge shoulder surface forming body 42 corresponds to the size of the ridge, for example, 15 mm or more and 70 mm or less, and preferably is, for example, 60 mm (see FIG. 6).

[0044] Next, the operation of the ridge coating machine 1 will be described.

[0045] When the ridge coating machine 1 is connected to the rear of a tractor and moved in the direction of travel by the tractor, the ridge top scraping means plows and scrapes the top surface of the original ridge, and behind the direction of travel, the banking means 3 plows the rice field surface and the original ridge and piles up the soil for ridge coating on the original ridge as bank, and behind the direction of travel, the ridge forming means 4 compacts the banked soil to form a new ridge.

[0046] At this time, the ridge top surface forming body 41 having a step portion 43 rotates in a predetermined direction to compact the embankment to form the ridge top surface and supply part of the embankment toward the ridge shoulder surface forming body 42, and the ridge shoulder surface forming body 42 having a step portion 55 rotates in a predetermined direction to compact the embankment (including the embankment gathered by the spiral step portion 33) to form the ridge shoulder surface, and the ridge side surface forming body 6 having a step portion 33 rotates in a predetermined direction to compact the embankment to form the ridge side surface, and as a result, a new ridge is formed with a seamless, smoothly continuous ridge top surface, ridge shoulder surface and ridge side surface.

[0047] The ridge coating machine 1 can form a strong ridge shoulder surface with a desired amount of soil sufficiently compacted, resulting in a strong ridge that is resistant to collapse. Therefore, for example, it can suppress the occurrence of cracks on the ridge shoulder surface and appropriately prevent the ridge from collapsing due to the cracks.

[0048] In addition, the three interconnected components (ridge top surface forming body 41, ridge shoulder surface forming body 42, and ridge side surface forming body 6) can be used to create a smooth ridge without any joints (raised lines). This prevents water from pooling on the ridge top surface or ridge shoulder surface, and suppresses the proliferation of weeds, for example.

[0049] In the above embodiment, the step portion 55 of the ridge shoulder surface forming body 42 is positioned in a straight line with the step portion 33 of the ridge side surface forming body 6 when viewed from the side, but this is not limited to this and may be positioned at an angle with respect to the step portion 33 of the ridge side surface forming body 6 when viewed from the side, as shown in Figures 8 and 9, for example.

[0050] In this illustrated example, in a plan view, the angle of the step portion 55 of the ridge shoulder surface forming body 42 with respect to the rotation center axis X is smaller than the angle of the step portion 43 of the ridge top surface forming body 41 with respect to the rotation center axis X (see FIG. 9). Note that the inclined (spiral) step portion 55 in the same direction as the spiral step portion 43 is not limited to a straight linear shape, and may be a curved shape similar to the spiral step portion 43.

[0051] Furthermore, in the above embodiment, the furrow shoulder surface forming body 42 is an integrated type consisting of a single, integral member, but this is not limited to this, and it may also be a separate type consisting of multiple separate furrow shoulder surface forming plates (independent plates) 51, for example, as shown in Figures 10 and 11.

[0052] In the illustrated example, of the two adjacent ridge shoulder surface forming plates 51 in the rotational direction, the rear end of one of the ridge shoulder surface forming plates 51 located at the front in the rotational direction and the front end of the other of the two ridge shoulder surface forming plates 51 located at the rear in the rotational direction are overlapped and connected to form a step 55. The height dimension H of the step 55 is, for example, 2 mm, which is the plate thickness dimension of the ridge shoulder surface forming plate 51.

[0053] In addition, adjacent ridge shoulder surface forming plates may be connected to each other using separate connecting members, and adjacent ridge shoulder surface forming plates may or may not overlap, and each ridge shoulder surface forming plate may be individually replaceable, just like the ridge side surface forming plates.

[0054] In addition, in any of the above embodiments, the ridge side forming plates and ridge shoulder surface forming plates (ridge shoulder surface forming portions) are preferably made of metal such as stainless steel, but they may also be made of elastically deformable materials such as resin or rubber.

[0055] Furthermore, the ridge side forming body may be configured to connect adjacent ridge side forming plates using, for example, a separate connecting member, and adjacent ridge side forming plates may or may not have overlapping portions, and may also be configured as an integrated unit made of a single member.

[0056] Furthermore, it is preferable that the ridge top surface forming body has a spiral step portion for compacting the embankment and supplying part of the embankment toward the ridge shoulder surface forming body, but it may also have, for example, a step portion that is not spiral (for example, a linear step portion along the axial direction), or one that has no step portion and has an outer peripheral surface formed like a cylindrical surface.

[0057] Although several embodiments and modifications of the present invention have been described, it is also possible to combine the embodiments and modifications as appropriate without departing from the spirit of the present invention. [Explanation of symbols]

[0058] 1 Ridge coating machine 3 Embankment methods 4 Ridge forming means 6 Ridge side formation 7 Ridge top roller 33 Step portion of ridge side formation body 41 Ridge top surface formation body 42 Ridge shoulder surface formation body 43 Step portion of ridge top surface formation body 51 Ridge shoulder forming plate, which is the ridge shoulder forming part 55 Step portion of ridge shoulder surface formation body

Claims

1. A furrow top surface roller used in a furrow coating machine, a ridge top surface forming body having a step portion; and a ridge shoulder surface forming body having a step portion, The step portion of the ridge shoulder surface forming body is discontinuous with the step portion of the ridge top surface forming body. A ridge top surface roller characterized by:

2. A furrow top surface roller used in a furrow coating machine, a ridge top surface forming body having a step portion; and a ridge shoulder surface forming body having a step portion, The ridge-shoulder surface forming body has a plurality of ridge-shoulder surface forming portions positioned side by side in the rotation direction, The step portions of the ridge shoulder surface forming bodies are located between the ridge shoulder surface forming bodies adjacent to each other in the rotation direction, and are discontinuous with the step portions of the ridge top surface forming bodies. A ridge top surface roller characterized by:

3. The step portion of the ridge shoulder surface forming body is misaligned in the rotation direction with respect to the step portion of the ridge top surface forming body.

3. The ridge top surface roller according to claim 1 or 2.

4. The end of the step portion of the ridge shoulder surface forming body on the ridge upper surface forming body side is located near a predetermined position between the step portions of the ridge upper surface forming body adjacent to each other in the rotational direction.

4. The ridge top surface roller according to claim 1.

5. A ridge forming means used in a ridge coating machine, a ridge side forming body having a step portion; a ridge top surface forming body having a step portion; and a ridge shoulder surface forming body having a step portion, The step portion of the ridge shoulder surface forming body is discontinuous with the step portion of the ridge top surface forming body. A ridge forming means.

6. A means of raising the soil, 6. The ridge forming means according to claim 5, wherein the ridge is formed by compacting the banked soil formed by the banking means. A ridge coating machine comprising:

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