JP7465542B2 - Ridge top roller and ridge coating machine - Google Patents

Description

The present invention relates to a ridge top roller used in a ridge coating machine and to the ridge coating machine.

A conventional ridge top surface roller is known, for example as described in 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 cone-shaped 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 into a truncated cone surface.

JP 2013-230092 A (FIG. 7)

However, in the above-mentioned conventional ridge top roller, the outer peripheral surface of the ridge shoulder surface forming body is formed in a truncated cone shape, so there is a risk that the compaction of the soil by the ridge shoulder surface forming body will be insufficient.

The present invention has been made in consideration of these points, and aims to provide a ridge top roller and ridge coating machine that can form a strong ridge shoulder surface.

The ridge top surface roller described in claim 1 is a ridge top surface roller used in a ridge coating machine, and includes a ridge top surface forming body and a ridge shoulder surface forming body provided on the ridge top surface forming body, and the ridge shoulder surface forming body has a plurality of ridge shoulder surface forming parts positioned side by side in the rotation direction and a step part positioned between the ridge shoulder surface forming parts adjacent to each other in the rotation direction.

The ridge top surface roller described in claim 2 is a ridge top surface roller used in a ridge coating machine, and includes a ridge top surface forming body having a spiral step portion and a ridge shoulder surface forming body provided on the ridge top surface forming body, and the ridge shoulder surface forming body has a plurality of ridge shoulder surface forming parts positioned side by side in the rotation direction, and a step portion positioned between the ridge shoulder surface forming parts adjacent to each other in the rotation direction and discontinuous with the spiral step portion.

The ridge top surface roller according to claim 3 is the ridge top surface roller according to claim 1 or 2, in which the step portion of the ridge shoulder surface forming body is positioned in a straight line with the step portion of the ridge side surface forming body when viewed from the side.

The ridge top surface roller according to claim 4 is the ridge top surface roller according to claim 1 or 2, in which the step portion of the ridge shoulder surface forming body is inclined relative to the step portion of the ridge side surface forming body when viewed from the side.

The ridge top surface roller according to claim 5 is a ridge top surface roller according to any one of claims 1 to 4, in which the step portion of the ridge shoulder surface forming body is positioned so as to be continuous with the step portion of the ridge side surface forming body in a side view.

The ridge coating machine described in claim 6 comprises a banking means for piling up soil and a ridge forming means for compacting the banked soil formed by the banking means to form a ridge, and the ridge forming means comprises a ridge side forming body that forms the ridge side while rotating, and a ridge top surface roller described in any one of claims 1 to 5 that is provided at the end of the ridge side forming body and forms the ridge top surface and ridge shoulder surface while rotating.

The present invention allows for the formation of a strong ridge shoulder surface.

FIG. 1 is a plan view of a ridge coating machine using a ridge top surface roller according to one embodiment of the present invention. FIG. 2 is a perspective view of a ridge forming means of the same ridge coating machine. FIG. This is a cross-sectional view taken along line AA in FIG. FIG. 13 is a side view of the ridge top surface roller with the extension roller member removed. FIG. FIG. 13 is a diagram showing the height of the step portion of the ridge shoulder surface forming body of the same ridge upper surface roller. FIG. 11 is a side view of a ridge forming means provided with a ridge top surface roller according to another embodiment of the present invention. FIG. FIG. 11 is a partial plan view of a ridge top surface roller according to still another embodiment of the present invention. FIG. 13 is a diagram showing the height of the step portion of the ridge shoulder surface forming body of the same ridge upper surface roller.

A ridge coating machine using a ridge top surface roller according to one embodiment of the present invention will be described with reference to Figures 1 to 7.

In Figure 1, 1 is a ridge coating machine. This ridge coating machine 1 is connected to the rear of a traveling vehicle, a tractor (not shown), and performs ridge coating work while moving forward (in the forward direction) in a forward working state by the tractor moving forward in the field. In addition, in the corners of the field, the ridge coating machine 1 is switched to a return working state and performs ridge coating work while moving backward (in the forward direction) by the tractor moving backward.

The ridge painting machine 1 is equipped with a machine 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 machine body 2 and that plows the rice field surface and the 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 machine 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).

The ridge forming means 4 is equipped with 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 central axis of rotation X to compact the embankment and form an inclined ridge side, and a cylindrical (including approximately cylindrical; the same applies below) ridge top roller (spiral roller) 7 that is provided at the end of the narrowing diameter side of the ridge side forming body 6 and rotates together with the ridge side forming body 6 around the central axis of rotation X.

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

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 PTO shaft of the tractor is connected to this input shaft via a joint. Then, based on the power input by the input shaft, the banking means 3, ridge forming means 4, and ridge top surface scraping means are driven to rotate and perform work. The banking means 3, ridge forming means 4, and ridge top surface scraping means make up the working section 10.

The movable machine frame 12 is connected to the machine frame 11 via a 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 retraction of cylinders 16, 17, which are the extension and retraction driving means, and the ridge coating machine 1 can be selectively switched to the desired state (forward operation state, storage state, and return operation state). In addition, the movable machine frame 12 is provided with a gauge wheel (direction wheel) 18 that runs in contact with the rice field surface.

The soil-filling means 3 has a rotating shaft 21 in the forward/rearward direction that is driven and rotated based on the power from the input shaft side, and this rotating shaft 21 has multiple tilling tines 22 attached to it for filling soil.

The ridge forming means 4 has a left-right rotating shaft 26 that is driven and rotated based on the 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.

The base end of the rotating shaft 26 is rotatably supported by the shaft support 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 forming body 6 and the ridge top surface roller 7 are driven to rotate (slip rotate) together around this central axis of rotation X.

Here, the ridge side forming body 6 is formed in a stepped truncated cone shape, as shown in Figures 2 to 4. This ridge side forming body 6 has a truncated cone-shaped base member 31, and the mounting part 30 on the rotation center side of this base member 31 is detachably attached to the tip of the rotation shaft 26.

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 removably 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 can be replaced individually.

The multiple ridge side forming plates 32 are positioned side by side in the direction of rotation, and are positioned radially around the central axis of rotation X. Furthermore, each ridge side forming plate 32 is positioned such that the distance from the central axis of rotation X gradually increases from the front end in the direction of rotation toward the rear end in the direction of rotation. In other words, each ridge side forming plate 32 is attached to the base member 31 such that the distance from the truncated cone-shaped outer peripheral surface of the base member 31 increases toward the rear end in the direction of rotation.

A longitudinal step 33 is located along the radial direction of the ridge side forming body 6 between the two ridge side forming plates 32 adjacent to each other in the rotational direction. In other words, multiple linear step portions 33 are formed at the boundary portions of the ridge side forming plates 32 on the outer peripheral surface side of the ridge side forming body 6. 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 by tapping it.

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

As shown in Figure 4, a connecting crown 36 and an intermediate flange 37 are removably attached with bolts 38 to the mounting portion (boss portion) 30 on the rotation center side of the base member 31 of the ridge side forming body 6. A number of auxiliary plates 39 protrude from the outer circumferential surface of this mounting portion 30. And, the ridge top surface rollers 7 are removably attached with bolts 40 to the annular intermediate flange (ridge top surface roller mounting portion) 37 of the ridge side forming body 6.

As shown in Figures 2 to 7, the ridge top roller 7 is equipped with a cylindrical ridge top forming body 41 that forms a horizontal ridge top surface while rotating around the central axis of rotation X, and a ridge shoulder surface forming body (shoulder part) 42 that is connected to the end (the inner end, which is one end in the axial direction) of the 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 central axis of rotation X.

The ridge top surface forming body 41 is formed in a stepped cylindrical shape. In other words, multiple spiral stepped portions 43 are formed in a protruding shape on the outer peripheral surface side of this ridge top surface forming body 41. Therefore, when rotating, the ridge top surface forming body 41 compacts the embankment on the ridge top surface of the original ridge and moves part of the embankment toward the ridge shoulder surface forming body 42 side (one end side in the axial direction). In other words, when rotating around the rotation center axis X, the ridge top surface forming body 41 compacts the embankment to form the ridge top surface and supplies part of the embankment toward the ridge shoulder surface forming body 42 side. The stepped portion 43 of the ridge top surface forming body 41 is formed in a spiral shape that faces forward in the rotation direction as it moves away from the ridge shoulder surface forming body 42.

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 removably attached to the outer end of the 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 removably attached to the outer end of the extension roller member 47 with attachment means (e.g., bolts and nuts) 50. The ridge shoulder surface forming body 42 is integrally provided on the inner end of the roller member 46.

The roller member 46 has a mounting flange 45 on the inner end, which is the mounting portion, 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 the opening 44 (see Figure 5).

The ridge shoulder surface forming body 42, like the ridge side surface forming body 6, is formed in a stepped truncated cone shape. 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 number of plate-shaped ridge shoulder surface forming plates 51 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.

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 end (narrower end) of the ridge side surface forming plate 32 overlaps with the ridge shoulder surface forming plate 51, and the outer surface of the base end of the ridge side surface forming plate 32 is covered by the ridge shoulder surface forming plate 51. In this way, the ridge shoulder surface forming body 42 is connected to the narrower end of the ridge side surface forming body 6, and the ridge top surface forming body 41 is connected to the narrower end of this ridge shoulder surface forming body 42.

Each ridge shoulder surface forming plate 51 is formed, for example, as a curved plate that is slightly elongated in the direction of rotation and convex on the outer surface side. Also, the ridge shoulder surface forming plate 51 is folded stepwise at multiple locations along, for example, two (or one or more) circumferential folding lines 52, 53. In other words, 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 with respect to the central axis of rotation X (see FIG. 6).

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

The multiple ridge shoulder surface forming plates 51 are positioned side by side in the rotational direction to correspond to the ridge side surface forming plates 32, and are positioned radially around the rotational center 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 rotational center axis X gradually increases from the front end to the rear end in the rotational direction (see Figure 7). The two-dot chain line in Figure 7 is part of an imaginary circle centered on the rotational center axis X.

A longitudinal step 55 is located along the radial direction of the ridge shoulder surface forming body 42 between the two ridge shoulder surface forming plates 51 that are adjacent to each other in the rotational direction. In other words, the two ridge shoulder surface forming plates 51 that are adjacent to each other in the rotational direction are connected together via the step 55 that 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 tapping it down as the working surface 56 on the outer surface of the ridge shoulder surface forming plate 51 on the rear side in the rotational direction intermittently comes into contact with the embankment during rotation.

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 not continuous 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 shifted a predetermined distance in the rotational direction from the step portion 43 of the ridge upper surface forming body 41, and the end portion 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 adjacent to each other in the rotational direction.

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

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 less than the maximum height dimension of the step portion 33 of the ridge side surface forming body 6, and is 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.

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

Next, we will explain the operation of the ridge coating machine 1.

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 it in the direction of travel, the banking means 3 plows the rice field surface and the original ridge to pile up the soil for ridge coating on the original ridge as banking, and behind it in the direction of travel, the ridge formation means 4 compacts the banking to form a new ridge.

At this time, the ridge top surface forming body 41 with the step portion 43 compacts the embankment while rotating in a predetermined direction to form the ridge top surface and supplies part of the embankment toward the ridge shoulder surface forming body 42, and the ridge shoulder surface forming body 42 with the step portion 55 compacts the embankment (including the embankment brought together by the spiral step portion 33) while rotating in a predetermined direction to form the ridge shoulder surface, and the ridge side surface forming body 6 with the step portion 33 compacts the embankment while rotating in a predetermined direction to form the ridge side surface, resulting in the formation of a new ridge with a seamless, smoothly continuous ridge top surface, ridge shoulder surface and ridge side surface.

The ridge application 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. This makes it possible to suppress the occurrence of cracks on the ridge shoulder surface, for example, and appropriately prevent the ridge from collapsing due to the cracks.

In addition, the three interconnected parts (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 seams (raised lines). This can prevent water from pooling on the ridge top surface or ridge shoulder surface, for example, and inhibit the proliferation of weeds.

In the above embodiment, the step portion 55 of the ridge shoulder surface forming body 42 is positioned in a straight line relative to the step portion 33 of the ridge side surface forming body 6 in a side view, but this is not limited to this. For example, as shown in Figures 8 and 9, the step portion 55 may be positioned at an angle relative to the step portion 33 of the ridge side surface forming body 6 in a side view.

In this illustrated example, in a plan view, the angle of the step portion 55 of the ridge shoulder surface forming body 42 relative to the rotation center axis X is smaller than the angle of the step portion 43 of the ridge top surface forming body 41 relative 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 being straight and linear, and may be curved in the same manner as the spiral step portion 43.

In addition, in the above embodiment, the ridge shoulder surface forming body 42 is an integrated type consisting of a single, integral member, but is not limited to this. For example, as shown in Figures 10 and 11, it may be a separate type consisting of multiple separate ridge shoulder surface forming plates (independent plates) 51.

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

For example, 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 in the same way as the ridge side surface forming plates.

In addition, in any of the above embodiments, the ridge side forming plate and the ridge shoulder surface forming plate (ridge shoulder surface forming portion) are preferably made of a metal such as stainless steel, but may also be made of an elastically deformable material such as resin or rubber.

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

The ridge top surface forming body preferably 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 a non-spiral step portion (such as a linear step portion along the axial direction) or an outer circumferential surface formed into a cylindrical shape without a step portion.

Although several embodiments and variations of the present invention have been described, it is possible to combine the various embodiments and variations as appropriate without departing from the spirit of the present invention.

1 Ridge coating machine 3 Banking means 4 Ridge forming means 6 Ridge side forming body 7 Ridge top roller
33 Step part of ridge side forming 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 surface forming plate which is the ridge shoulder surface forming part
55 Step portion of ridge shoulder surface formation body

Claims (7)

A ridge top surface roller used in a ridge coating machine,
A ridge top surface forming body having a step portion ;
A ridge shoulder surface forming body provided on the ridge top surface forming body,
The ridge shoulder surface forming body is
A plurality of ridge shoulder surface forming portions arranged in a rotation direction;
A step portion is provided between the ridge shoulder surface forming portions adjacent to each other in the rotational direction,
The step portion of the ridge shoulder surface forming body is shifted by a predetermined distance in the rotation direction with respect to the step portion of the ridge top surface forming body.
A ridge top surface roller characterized by: The step portion of the ridge shoulder surface forming body has a height dimension of 2 mm or more over the entire length.
2. The ridge top surface roller according to claim 1. The end of the step portion of the ridge shoulder surface forming body on the ridge upper surface forming body side is located near the middle position between the two step portions adjacent to each other in the rotation direction of the ridge upper surface forming body.
3. The ridge top surface roller according to claim 1 or 2. A ridge forming means used in a ridge coating machine,
A ridge side forming body having a step portion;
The ridge top surface roller according to any one of claims 1 to 3,
The step portion of the ridge shoulder surface forming body of the ridge top surface roller is positioned in a straight line with the step portion of the ridge side surface forming body in a side view.
A ridge forming means. A ridge forming means used in a ridge coating machine,
A ridge side forming body having a step portion;
The ridge top surface roller according to any one of claims 1 to 3,
The step portion of the ridge shoulder surface forming body of the ridge top surface roller is inclined with respect to the step portion of the ridge side surface forming body in a side view.
A ridge forming means. A ridge forming means used in a ridge coating machine,
A ridge side forming body having a step portion;
The ridge top surface roller according to any one of claims 1 to 3,
The step portion of the ridge shoulder surface forming body of the ridge top surface roller is positioned so as to be continuous with the step portion of the ridge side surface forming body in a side view.
A ridge forming means. A means for piling up soil;
7. The ridge forming means according to claim 4, wherein the ridge is formed by compacting the soil formed by the soil filling means.
A ridge coating machine comprising:

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