JP2020110099A - Ridge coating machine - Google Patents

Abstract

To provide a ridge coating machine that can prevent a top place processing unit from being buried under an old ridge, and can make it follow to the height of the upper surface of the old ridge.SOLUTION: A ridge coating machine has: a ridge forming unit including an upper surface forming unit for forming an upper surface of a ridge, and a slope forming part for forming a slope of the ridge; a top place processing unit provided in front of the upper surface forming unit to level the top place of the old ridge, and being swingable vertically; and a grounding unit mounted at the top place processing unit, and being vertically swingable with the top place processing unit. The grounding unit has a slide unit having a ground contact surface coming in contact with the upper surface of the ridge, and a connecting rod for connecting the top place processing unit with the slide unit. The slide unit is movably connected to the connecting rod.SELECTED DRAWING: Figure 3

Description

The present invention relates to a ridge coater. In particular, the present invention relates to a ridge coating machine provided with an heaven-field processing unit that breaks down an old ridge's heaven to form a new ridge's heaven.

Currently, in order to reduce the working hours of agricultural work, automatic agricultural work machines are being developed, and various agricultural work machines are being developed. In particular, agricultural working machines (ridge applicators, tillers, and substitute machines) that are mounted on the rear of a traveling machine such as a tractor and that can be replaced according to the type of work such as ridge coating, cultivating, and scraping are On the other hand, it is possible to deal with various agricultural work just by replacing it with an attachment, which greatly contributes to the cost reduction of agricultural work.

Among the above-mentioned agricultural work machines, the ridge coating machine is particularly useful in that it can form ridges with high precision and high strength, which are difficult to realize manually by an operator. The ridge applicator forms ridges by cultivating the soil in the field with a rotor or the like and pressing the cultivated soil with a ridge forming unit such as a drum. Since the ridge has a slope (slope) that blocks water and a sky field (upper surface) above it, the ridge coater has a rotor and a rotor for cutting down the fields and old ridges (old ridges) on each side. A ridge forming part for forming a new ridge is provided. It is preferable that the rotor provided for the sky field (sky processing unit) has a configuration capable of cutting off only an upper region of the old ridge near the sky field. Therefore, for example, the ridge coater of Patent Document 1 is provided with a grounding member for working at a working depth corresponding to the height of the old ridge.

JP, 2013-74854, A

However, since the ground contact member 50 described in FIG. 8 of Patent Document 1 is fixed to the upright processing unit, the bottom surface of the ground contact member is vertically moved by the rotational movement (rotation) of the upright processing unit. The angle changes. Therefore, depending on the inclination of the heaven-field processing unit, the ground contact member may come into contact with the old ridge from the edge portion. That is, the ground contact member is not in surface contact with the old ridge, but is in line contact. If the old ridges are in a soft state containing a lot of water, or if the old ridges are in a fragile state such as sandy condition, if the ground contact members make line contact with these old ridges, the ground contact members will be buried in the old ridges. In some cases, the old ridge was cut off.

One embodiment of the present invention has an object to realize a ridge coating machine that can follow the height of the upper surface of the old ridge without the sky field processing unit being buried in the old ridge.

A ridge coating machine according to an embodiment of the present invention is provided in front of the ridge forming portion having an upper surface forming portion forming an upper surface of the ridge and a slope forming portion forming a slope of the ridge, and the front surface forming portion. The heaven field of the old ridge is broken down, and the heaven field processing unit that can be vertically swung, and the grounding unit that is attached to the heaven field processing unit and that can be vertically swung together with the heaven field processing unit, The grounding unit includes a slide unit having a grounding surface in contact with the upper surface of the ridge, and a connecting rod connecting the upside-down processing unit and the sliding unit, and the sliding unit is movable with respect to the connecting rod. Connected freely.

The slide portion may be connected to the connection rod near the end of the connection rod so as to be rotatable about a rotation shaft extending in the traveling direction.

In the working state, the sky field processing section and the grounding section are pressed in the ridge direction by the weight of the sky field processing section and the grounding section, and are urged by a mechanism other than the sky field processing section and the grounding section. You don't have to.

The heaven-field processing unit may include a cover unit, and the ground contact unit may be located closer to the pre-processing unit than an end portion of the cover unit in a direction orthogonal to the traveling direction in a top view.

The connecting rod may have a recess at the end on the slide portion side in a cross section orthogonal to the direction in which the rotation axis of the slide portion extends.

According to one embodiment of the present invention, it is possible to realize a ridge coating machine that can follow the height of the upper surface of the old ridge without the sky field processing unit being buried in the old ridge.

It is a figure which shows the whole structure in the storage state of the ridge coating machine which concerns on one Embodiment of this invention. It is a figure which shows the whole structure in the working state of the ridge coating machine which concerns on one Embodiment of this invention. It is a figure which shows the ceiling processing part and grounding part of the ridge coating machine which concerns on one Embodiment of this invention. It is a figure explaining the slide part which comprises the grounding part of the ridge coating machine which concerns on one Embodiment of this invention. It is a figure explaining the connecting rod which comprises the grounding part of the ridge coater which concerns on one Embodiment of this invention. It is a figure explaining operation|movement of the grounding part of the ridge coating machine which concerns on one Embodiment of this invention.

Hereinafter, a ridge coating machine according to an embodiment of the present invention will be described with reference to the drawings. However, the ridge coating machine according to the embodiment of the present invention can be carried out in many different modes and should not be construed as being limited to the description of the example below. In the drawings referred to in this embodiment, the same portions or portions having similar functions are denoted by the same reference numerals, and repeated description thereof will be omitted.

In the specification and claims of the present application, unless otherwise specified, "upper" indicates a direction vertically away from the field, and "lower" indicates a direction closer to the field vertically. Further, “front” indicates a direction in which the traveling machine body is located with respect to the work machine, and “rear” indicates a direction 180° opposite to the front. Further, “left” indicates the left when the traveling machine body is positioned with respect to the working machine, and “right” indicates the direction 180° opposite to the left side.

[Structure of ridge coater]
A schematic configuration of the ridge coating machine 10 according to the present embodiment will be described with reference to FIGS. 1 and 2. 1 and 2 are diagrams showing the overall configuration of a ridge coating machine according to an embodiment of the present invention. 1 is a diagram showing the ridge coating machine 10 in the stored state, and FIG. 2 is a diagram showing the ridge coating machine 10 in the working state. 1 and 2, the view shown in (A) is a perspective view of the ridge coating machine 10 as viewed from the front right upper side. In the same figure, the figure shown in (B) is a top view of the ridge coater 10 as seen from above. In the same figure, the figure shown to (C) is the side view which looked at the ridge coating machine 10 from the side (right side).

[Explanation of storage state]
As shown in FIG. 1, the ridge coating machine 10 according to the present embodiment includes a mounting portion 100, an offset mechanism portion 200, a power transmission portion 300, and a working portion 400. The ridge coater 10 is connected to a traveling machine body such as a tractor by a mounting portion 100. The mounting unit 100 and the working unit 400 are connected via the offset mechanism unit 200 and the power transmission unit 300. With this configuration, the ridge coating machine 10 is pulled as the traveling machine body travels, and the ridge coating work is performed by the working unit 400.

The mounting portion 100 is connected to a three-point link mechanism provided between two rear tires of the traveling machine body. The three-point link mechanism of the traveling vehicle body is composed of a top link, a lift rod and a lower link. As shown in FIG. 1A, the mounting portion 100 of the ridge coating machine 10 includes a top mast 101 and a lower link connecting portion 103. The top mast 101 is connected to the top link of the three-point link mechanism via an auto hitch arm (not shown). The lower link connecting portion 103 is connected to the lower link of the three-point link mechanism via an auto hitch arm (not shown). Since the three-point link mechanism is a known mechanism, detailed description thereof will be omitted.

The mounting portion 100 includes a hitch frame 110 extending in the left-right direction which is the width direction of the traveling machine body. The hitch frame 110 is configured to be connectable to the above three-point link mechanism. A gear box (not shown) is provided in the lower center of the hitch frame 110, and an input shaft 107 that receives power from the traveling machine body is provided in the gear box (not shown). Power is transmitted to the input shaft 107 from a PTO shaft provided on the traveling machine body through a universal joint.

The offset mechanism unit 200 is a rotation mechanism for performing the offset movement of the working unit 400. The offset mechanism unit 200 can move the working unit 400 to a position offset laterally of the traveling machine body with respect to the traveling direction (D1 direction) of the traveling machine body. The offset mechanism unit 200 of this embodiment includes an offset frame 210, a link rod 220, a support frame 230, and a power unit 240. The offset frame 210 is rotatably connected to the mounting portion 100 on a rotation shaft 211, and rotates about the rotation shaft 211. The link rod 220 is rotatably connected to the mounting portion 100 on a rotating shaft 221 provided at a position different from the rotating shaft 211, and rotates about the rotating shaft 221. The offset frame 210 and the link rod 220 rotate about the rotation shafts 211 and 221, respectively, so that the working unit 400 moves to the side of the traveling machine body. Note that, in FIG. 1, the offset mechanism unit 200 is in a state of being rotated leftward (clockwise) with respect to the forward direction of the traveling machine body. In this state, the working unit 400 is located behind the traveling machine body. This state is called "stored state".

The offset frame 210 is a long frame composed of a hollow member, and is arranged below the power transmission unit 300 (see FIG. 1C). As described above, one end of the offset frame 210 is rotatably connected to the hitch frame 110 on the rotation shaft 211. On the other hand, the other end of the offset frame 210 is rotatably connected to the working unit 400 and the support frame 230 on the rotation shaft 213. The offset frame 210 rotates about a rotation shaft 211 with respect to the hitch frame 110 on a horizontal plane. The working unit 400 rotates about a rotation shaft 213 with respect to the offset frame 210 on a horizontal plane. With such a configuration, the working unit 400 rotates on the horizontal plane with respect to the mounting unit 100. The offset frame 210 is connected to the power transmission unit 300 and moves together with the power transmission unit 300.

The link rod 220 is a long member composed of a tubular member and has a length similar to that of the offset frame 210. As described above, one end of the link rod 220 is rotatably connected to the hitch frame 110 at the rotation shaft 221. On the other hand, the other end of the link rod 220 is rotatably connected to the support frame 230 at the rotation shaft 223.

The support frame 230 is a tubular member, is a shorter member than the offset frame 210 and the link rod 220, and is a member that connects the offset frame 210 and the link rod 220 to each other. As described above, the offset frame 210 and the link rod 220 are rotatably connected to the support frame 230. The support frame 230 is connected to the working unit 400, and moves integrally with the working unit 400 when the working unit 400 performs an offset operation. In other words, the angle of the support frame 230 with respect to the working unit 400 is kept constant.

The shape connecting the four points of the rotating shafts 211, 213, 221, and 223 is a substantially parallelogram. With the above-described configuration, the hitch frame 110, the offset frame 210, the link rod 220, and the support frame 230 form a parallelogram rotation mechanism having respective rotation axes as apexes. With this rotation mechanism, the offset mechanism unit 200 can offset the working unit 400 while maintaining the angle of the working unit 400 with respect to the traveling direction of the traveling machine body.

A power unit 240 shown in FIG. 1B is a power source (actuator) of the offset mechanism unit 200, and is an expansion/contraction member including, for example, an electric cylinder, a hydraulic cylinder, and the like. One end of the power unit 240 is connected to the hitch frame 110, and the other end is connected to the offset frame 210. The expansion/contraction of the power unit 240 drives the offset mechanism unit 200, and the offset amount (movement amount in the offset direction) of the working unit 400 can be controlled. In other words, the offset mechanism unit 200 rotates the working unit 400 about the rotation shaft 211 by expanding and contracting the power unit 240. The amount of movement of the working unit 400 in the offset direction is determined by the amount of expansion and contraction of the power unit 240, and thus can be adjusted steplessly.

The power transmission unit 300 is a mechanism for transmitting power from the traveling machine body received by the input shaft 107 of the mounting unit 100 to the working unit 400 side. A chain drive mechanism is used as the power transmission unit 300. Specifically, the power transmission unit 300 includes at least a drive sprocket, a driven sprocket, and a roller chain. The roller chain is wound around the drive sprocket and the driven sprocket, and the power of the drive sprocket is transmitted to the driven sprocket via the roller chain. The working unit 400 receives power from the driven sprocket and performs ridge coating work.

[Explanation of work status]
As described above, switching between the stored state and the working state of the furrow coater 10 is performed by the expansion and contraction of the power unit 240. Specifically, when the power unit 240 extends, the stored state shown in FIG. 1 is switched to the "working state" shown in FIG. When the power unit 240 extends, the working unit 400 rotates about the rotation shaft 211 by the operation of the offset mechanism unit 200 and moves laterally with respect to the traveling direction of the traveling machine body. This movement can be called offset movement. At this time, since the angle of the support frame 230 with respect to the working unit 400 is kept constant, the orientation of the working unit 400 does not change during the offset movement.

The detailed configuration of the working unit 400 will be described with reference to the ridge coating machine 10 in the working state in FIG. 2. The working part 400 is a part for performing a ridge coating work. The working section 400 includes a ridge forming section 500, a ceiling processing section 600, a grounding section 700, a link mechanism section 800, and a preprocessing section 900. In the storage state shown in FIG. 1, the grounding section 700 is folded and stored upward, but in the working state shown in FIG. 2, the grounding section 700 is unfolded and placed in the working position.

The ridge forming part 500 includes an upper surface forming part 510 forming an upper surface of the ridge and a slope forming part 520 forming a slope of the ridge. In the present embodiment, the upper surface forming portion 510 is a cylindrical member whose central axis extends in a direction orthogonal to the traveling direction of the working machine body. The ridge forming portion 500 is rotatably supported with respect to this central axis. The ridge forming portion 500 rotates by receiving power from the power transmitting portion 300. The slope forming portion 520 is a substantially conical member having an inclined surface inclined with respect to the central axis. The slope forming part 520 of the present embodiment is a polyhedral drum in which a plurality of plate-shaped members are arranged so as to partially overlap each other in the circumferential direction. Each of the plurality of plate-shaped members has a shape that is distant from the central axis of the slope forming portion 520 in the circumferential direction of the slope forming portion 520. Due to the shape of the slope forming portion 520, each plate-shaped member approaches the slope of the ridge as the slope forming portion 520 rotates, so that the slope of the ridge can be solidified more firmly. In other words, in the working state, the upper surface forming portion 510 is parallel to the field and the slope forming portion 520 is inclined with respect to the field. In addition, in the present embodiment, the configuration in which the upper surface forming unit 510 is parallel to the field is illustrated, but the upper surface forming unit 510 may have a smaller inclination angle with respect to the field than the slope forming unit 520, and thus the upper surface forming unit 510 may be used in the field. And may be inclined.

The shapes of the upper surface forming portion 510 and the slope forming portion 520 are not limited to the above configurations. For example, the upper surface forming portion 510 may have a shape in which a plurality of plate-shaped members partially overlap with each other similarly to the polyhedral drum. Further, the slope forming part 520 may not be a polyhedral drum. That is, the slope forming portion 520 does not have to have a shape that is away from the central axis of the slope forming portion 520 in the circumferential direction of the slope forming portion 520.

The pretreatment unit 900 is provided in front of the ridge forming unit 500. More specifically, the pretreatment section 900 is provided in front of the slope forming section 520. The pretreatment unit 900 includes a work rotor 910 provided with a plurality of work claws (see FIG. 2C), and a cover member 920 that covers the work rotor 910 from above (see FIGS. 2A and 2B). ) Has. The work rotor 910 operates by receiving power from the power transmission unit 300 to rotate the work claw. The rotation axis of the work rotor 910 is inclined with respect to the traveling direction. Specifically, the rotation shaft of the work rotor 910 is inclined from the rear side of the ridge coating machine 10 toward the front side to the outside of the ridge coating machine 10. Of the plurality of work claws provided on the work rotor 910, one work claw is curved in a direction opposite to the rotation direction of the work claw and backward, and another work claw is opposite in the rotation direction of the work claw. Curved forward.

The heaven processing section 600 is provided in front of the ridge forming section 500. More specifically, the heaven field processing unit 600 is provided in front of the upper surface forming unit 510. The roof processing unit 600 covers the work rotor 610 provided with a plurality of work claws (see (A) and (C) of FIG. 2) and the upper and front sides of the work rotor 610 similarly to the pretreatment unit 900. It has a cover member 620. The work rotor 610 operates by receiving power from the power transmission unit 300 to rotate the work claw. The rotation axis of the work rotor 610 is inclined with respect to the traveling direction. Specifically, the rotation shaft of the work rotor 610 is inclined outward from the ridge coating machine 10 from the rear side to the front side of the ridge coating machine 10. In this embodiment, the rotation axis of the work rotor 610 is parallel to the rotation axis of the work rotor 910. The plurality of work claws provided on the work rotor 610 are curved in a direction opposite to the rotation direction of the work claws and toward the front. A gap is formed between the front side of the cover member 620 and the work claw. Therefore, if the working claw that is curved backward is continuously rotated while soil is accumulated in the gap, the accumulated claw causes abrasion of the work claw, particularly the root portion of the work claw. However, in the case of the working nail that is curved forward, the tip of the working nail that is curved forward may act on the soil before the soil is accumulated between the front side of the cover member 620 and the working nail. As a result, the soil collapses, and as a result, the work claws are less likely to wear. The sky field processing unit 600 breaks down the sky field of the old ridge in order to newly solidify the ridge by the work rotor 610.

In the vertical direction, the heaven processing unit 600 is provided above the preprocessing unit 900. In other words, in the vertical direction, the lower end of the rotation track of the work claw provided in the upright processing unit 600 is located above the lower end of the rotation track of the work claw provided in the preprocessing unit 900.

The link mechanism unit 800 connects the frame 410 and the heavenly field processing unit 600 (see FIG. 2A). Further, the link mechanism section 800 is provided above the sky field processing section 600. When the link mechanism unit 800 is unfolded, the sky field processing unit 600 is in the working state, and when the link mechanism unit 800 is folded, the sky field processing unit 600 is in the stored state. The state of the sky field processing unit 600 shown in FIG. 1 is a stored state, and the state of the sky field processing unit 600 shown in FIG. 2 is a working state. As shown in FIG. 2B, the top field processing unit 600 and the link mechanism unit 800 overlap each other in a top view. As described above, in FIG. 1, the link mechanism unit 800 is folded and the grounding unit 700 is stored above, but in FIG. 2, the link mechanism unit 800 is unfolded and the heavenfield processing unit 600 is in the working position. And the grounding portion 700 are pressed in the ridge direction by their own weight. In this state, the sky field processing unit 600 and the grounding unit 700 are not biased by any mechanism other than these. With this configuration, the sky field processing unit 600 can be vertically swung by the link mechanism unit 800.

The grounding unit 700 is provided in front of the sky field processing unit 600. The grounding unit 700 is attached to the heaven processing unit 600. That is, the grounding unit 700 can swing up and down together with the sky field processing unit 600. The ground contact portion 700 contacts the old ridge and slides on the old ridge. The height of the sky field processing unit 600 from the field is determined by the contact of the ground contacting unit 700 with the old ridge. That is, the ground contact unit 700 adjusts the height of the upright processing unit 600 so that the working depth of the upright processing unit 600 is constant even if the height of the old ridge changes. The detailed structure of the ground portion 700 will be described later.

[Configuration of Grounding Part 700]
The detailed configuration of the grounding portion 700 will be described with reference to FIGS. 3 to 5. FIG. 3 is a diagram showing an upright processing unit and a grounding unit of the ridge coating machine according to the embodiment of the present invention. 3A, 3B, and 3C are views of the heaven field processing unit 600 and the grounding unit 700 of FIG. 2 as viewed from the side, above, and front, respectively.

As shown in FIG. 3, the ground portion 700 includes a slide portion 710, a rod connecting portion 720, a rib 730, a connecting rod 740, a mounting seat 750, a mounting pin 760, and a fastener 790. The rod connecting portion 720 is fixed to the slide portion 710. The slide portion 710 and the rod connecting portion 720 are rotatably connected to the connecting rod 740 by a fastener 790. The connecting rod 740 is connected to the mounting seat 750 by a mounting pin 760 so that its vertical position can be adjusted.

The slide portion 710 contacts the upper surface of the old ridge and slides on the upper surface of the old ridge. The slide portion 710 has a long side in the traveling direction (D1 direction). A ground surface 711 and a tip portion 713 are provided on the lower surface of the slide portion 710. The ground contact surface 711 is a surface in contact with the upper surface of the old ridge, and has a long side in the traveling direction. The tip portion 713 extends forward from the ground contact surface 711 and has a shape curved upward.

The rod connecting portion 720 projects upward from the upper end of the slide portion 710. The rod connecting portion 720 projects upward from the surface of the slide portion 710 opposite to the ground contact surface 711. The rod connecting portions 720 are provided at two positions in the longitudinal direction of the slide portion 710, and each rod connecting portion 720 has an opening. The connecting rod 740 is also provided with an opening at a position corresponding to the opening provided in the rod connecting portion 720. When the openings are aligned, the fastener 790 penetrates the openings to connect the connecting rod 740 to the rod connecting portion 720. With such a connection configuration, the slide portion 710 and the rod connecting portion 720 are rotatably connected to the connecting rod 740. As will be described in detail later, the grounding portion 700 has a configuration in which the inclination of the grounding surface 711 changes so that the grounding surface 711 follows the upper surface of the old ridge. That is, the slide portion 710 is movably connected to the connecting rod 740. A line connecting the openings provided in the rod connecting portion 720 substantially coincides with the traveling direction (D1 direction). That is, the length of the fastener 790 approximately matches the traveling direction. Therefore, the slide portion 710 and the rod connecting portion 720 rotate about the traveling direction.

The rib 730 is provided on the upper surface side of the slide portion 710. The rib 730 is continuously provided from a region corresponding to the ground contact surface 711 of the slide portion 710 to a region corresponding to the tip portion 713. The rib 730 is connected to the rod connecting portion 720 on the side relatively close to the tip portion 713 (that is, on the front side). The rib 730 extends upward beyond the upper end of the rod connecting portion 720. The rib 730 is provided with an elongated opening 731. The opening 731 functions as a handle for making it easier for an operator to hold the grounding portion 700.

The connecting rod 740 has a long side in the vertical direction. As described above, the lower portion of the connecting rod 740 is provided with an opening through which the fastener 790 can penetrate at a position corresponding to the opening of the rod connecting portion 720. An opening is provided in the connecting rod 740 from the central portion to the upper portion of the connecting rod 740. The mounting seat 750 is also provided with an opening at a position corresponding to the opening provided in the connecting rod 740. When the openings are aligned with each other, the attachment pins 760 penetrate the openings to connect the connecting rod 740 to the attachment seat 750. Although details will be described later, the connecting rod 740 is provided with a plurality of openings in the longitudinal direction of the connecting rod 740. Therefore, by changing the position of the opening through which the attachment pin 760 penetrates, the connecting rod 740 can be attached to the heaven-field processing unit 600 at a plurality of locations in the longitudinal direction.

Note that, as shown in FIG. 3B, the ground contact portion 700 is located closer to the pretreatment portion 900 side (inner side) than the end portion of the cover member 620 in the direction orthogonal to the traveling direction in a top view. (See also (B) in Figure 2). In other words, the cover member 620 passes above the old ridge in the area where the ground contact portion 700 slides when the ridge coating machine 10 advances in the traveling direction. In the above-mentioned direction, if the ground contact part 700 extends beyond the end of the cover member 620 to the side (outside) opposite to the pretreatment part 900 side, a position irrelevant to the work rotor 610 inside the cover member 620. In this case, the reference of the plowing depth is set, which causes a problem that the ground contact portion 700 is buried in the old ridge, or the ridge is cut more than necessary. Therefore, it is preferable that the ground contact portion 700 is located closer to the pretreatment portion 900 than the end portion of the cover member 620 in the above direction. However, the configuration is not limited to this.

Further, as shown in FIGS. 3B and 3C, the link mechanism portion 800 includes a mounting seat 810, a first link arm 820, a second link arm 830, a first stopper 840, a second stopper 850, and a second stopper 850. It has three stoppers 860 and hooks 870. The mounting seat 810 is mounted on the frame 410. The first link arm 820 is rotatably connected to the mounting seat 810 about the rotation shaft 811. The second link arm 830 is rotatably connected to the first link arm 820 about the rotation shaft 821. The second link arm 830 is rotatably connected to the connection arm 770 fixed to the mounting seat 750 about the rotation shaft 831. The hook 870 is rotatably connected to the second link arm 830 about the rotation shaft 831.

In the working state of the roof processing unit 600, the first stopper 840 contacts the end portion 833 of the second link arm 830, so that the downward movement of the roof processing unit 600 is restricted. When the upright processing unit 600 is in the housed state, the second stopper 850 contacts the second link arm 830, whereby the upward movement of the upright processing unit 600 is restricted. In the above-mentioned stored state, the hook 870 is locked to the third stopper 860, so that the downward movement of the roof processing unit 600 is restricted. That is, the skyfield processing unit 600 is locked in the stored state.

FIG. 4 is a diagram illustrating a slide portion that constitutes a grounding portion of the ridge coating machine according to the embodiment of the present invention. 4A, 4B, and 4C are views of the slide portion 710 as viewed from above, from the side, and from the front, respectively. As described above, the rod connecting portion 720 and the rib 730 are fixed to the slide portion 710. The rod connecting portion 720 and the rib 730 may be fixed by welding, or may be fixed by using a fixture or the like. The rod connecting portion 720 and the rib 730 project from the upper surface of the slide portion 710 in a direction orthogonal to the upper surface. Two rod connecting portions 720 are provided at different positions in the longitudinal direction of the slide portion 710. An opening 721 is provided in each of these rod connecting portions 720. The opening 721 has a circular shape.

As shown in (A) of FIG. 4, the length of the slide portion 710 in the width direction (direction orthogonal to the longitudinal direction) is the front end portion (end portion on the advancing direction side) and the rear end portion (opposite to the advancing direction). Both end portions) are substantially the same. The front end portion and the rear end portion of the slide portion 710 may have different lengths in the width direction. For example, if the width of the front end portion in the width direction is shorter than the length of the rear end portion in the width direction, if there is an obstacle such as a stone in the traveling direction, even if the slide portion 710 comes into contact with the obstacle, the obstacle is obstructed. An object can be escaped to the side, and damage to the slide portion 710 can be suppressed. Further, the rib 730 is provided along the longitudinal direction of the slide portion 710. The rib 730 is provided at a position displaced from the center to one end side in the width direction of the slide portion 710 (direction orthogonal to the longitudinal direction). Specifically, the rib 730 is provided at a position displaced from the opening 721 to the end side in the width direction of the slide portion 710 in a top view (see FIG. 4A).

As shown in FIG. 4B, the rib 730 projects upward beyond the upper end of the rod connecting portion 720. Specifically, in the height from the surface of the slide portion 710 opposite to the ground contact surface 711, the rib 730 has a height that is at least twice the height of the rod connection portion 720. The opening 731 is provided above the upper end of the rod connecting portion 720. That is, the lower end of the opening 731 is located above the upper end of the rod connecting portion 720. In the vicinity of the tip portion 713, the rib 730 is connected so as to be orthogonal to the slide portion 710. With this configuration, the strength of the ribs 730 near the slide portion 710 is improved. The upper end of the rib 730 is located at substantially the same height as the upper end of the tip portion 713.

FIG. 5: is a figure explaining the connecting rod which comprises the grounding part of the ridge coater which concerns on one Embodiment of this invention. 5A and 5B are views of the connecting rod 740 as viewed from the side and the front, respectively. As shown in FIG. 5, the connecting rod 740 is a member having a long side. The connecting rod 740 has a tubular member 749 having a hollow inside, and a connecting portion 743 provided at the lower end of the tubular member 749. The cylindrical member 749 is provided with a plurality of openings 741 in the longitudinal direction. The opening 741 has a shape that allows the attachment pin 760 to pass therethrough. In order to understand the structure of the tubular member 749, the region in which the hollow portion and the opening 741 are provided is shown in white, and the other regions are shown in hatching. An opening 745 is provided in the connection portion 743. The opening 745 has a shape that allows the fastener 790 to pass therethrough. A recess 747 is provided at the lower end of the connecting portion 743. The shape of the recess 747 is a part of an arc centered on the point P1. The connecting portion 743 is provided outside the tubular member 749, and the recess 747 is provided only in the connecting portion 743. That is, the connecting rod 740 has the concave portion 747 only in the region where the connecting portion 743 is provided in the cross section orthogonal to the direction in which the rotation axis of the slide portion 710 extends. However, when the lower end of the tubular member 749 extends to the lower end of the connecting portion 743, the tubular member 749 may be provided with a recess. In other words, the configuration of the connecting rod 740 in FIG. 5 has a recess 747 at the lower end (the end on the sliding part 710 side) of the connecting rod 740 in an arbitrary cross-sectional view seen from the direction in which the rotation axis of the sliding part 710 extends. ..

As described above, the opening 741 is aligned with the opening provided in the mounting seat 750, and in this state, the mounting pin 760 is passed through the opening of the mounting seat 750 and the opening 741. Fix the position of 740. In addition, the opening 745 is aligned with the opening 721 provided in the rod connecting portion 720 of FIG. 4, and in that state, the fastener 790 is passed through the openings 721 and 745, so that the slide portion 710 is connected to the connecting rod 740. It is rotatably connected thereto. In other words, the slide portion 710 is rotatably connected near the end of the connecting rod 740.

[Operation of Grounding Part 700]
FIG. 6 is a diagram for explaining the operation of the grounding portion of the ridge coating machine according to the embodiment of the present invention. FIG. 6 is a view of the ground portion 700 as viewed from the rear. As shown in FIG. 6, the grounding portion 700 has a function of following the upper surface of the old ridge even if the inclination of the grounding portion 700 itself changes. In other words, when the slide portion 710 rotates about the connecting rod 740 around the fastener 790, the slide portion 710 rotates so that the inclination of the ground contact surface 711 follows the upper surface of the old ridge. The rotation of the slide portion 710 is restricted by the upper surface of the slide portion 710 contacting the lower end of the connecting portion 743 of the connecting rod 740. As shown in FIGS. 6A and 6C, in the state where the rotation of the slide portion 710 is restricted, the corner portion of the connection portion 743 contacts the slide portion 710.

In the present embodiment, the inclination of the grounding surface 711 with respect to the longitudinal direction of the connecting rod 740 is adjusted so that the grounding surface 711 follows the upper surface of the old ridge by rotating the slide portion 710 about the rotation axis extending in the traveling direction. However, the present invention is not limited to this configuration. For example, the slide portion 710 may be rotated about a rotation shaft extending in a direction intersecting the traveling direction. Further, the slide portion 710 may rotate about a plurality of rotation shafts. Further, the inclination of the ground contact surface 711 may be changed by a method other than the rotation of the slide portion 710. For example, the ground contact part 700 or the slide part 710 may change the inclination according to a free platform (or a ball head system). The ball head system is a connection system composed of a socket that serves as a pedestal and a ball-shaped member that can freely move in the socket. In addition to the ball head method, a connection method using an elastic member such as a spring or cushion rubber may be used. In other words, the slide portion 710 is movably connected to the connecting rod 740.

With the above configuration, for example, even when foreign matter such as soil or straw is caught between the slide portion 710 and the connecting rod 740, in the state shown in FIGS. Since a large pressure is applied to the foreign matters, these foreign matters can be easily crushed. As a result, it is possible to suppress the problem that the rotation operation of the slide part 710 becomes dull or the rotation range of the slide part 710 becomes narrow due to the foreign matter sandwiched between the slide part 710 and the connecting rod 740. Further, since the concave portion 747 is provided at the lower end of the connecting portion 743, the soil accumulated near the rotation center of the slide portion 710 can be released as compared with the case where the concave portion 747 is not provided, and the accumulated soil is accumulated. Thus, it is possible to suppress the problem that the rotating operation of the slide portion 710 becomes dull.

As described above, according to the ridge coating machine 10 according to the present embodiment, the ground surface 711 can be formed even when the ground portion 700 is inclined due to the configuration in which the slide portion 710 can rotate with respect to the connecting rod 740. It can rotate following the old ridge. As a result, it is possible to suppress the problem that the grounding portion 700 is buried in the old ridge, or the ridge is cut more than necessary. Further, since the sky field processing unit 600 swings up and down by the operation of the link mechanism unit 800, the inclination of the ground contact unit 700 changes depending on the vertical position. Even in such a case, since the slide portion 710 is rotatable with respect to the connecting rod 740, it is possible to suppress the above problems. Further, since the slide portion 710 is rotatably connected near the end of the connecting rod 740, it is possible to prevent the slide portion 710 from rotating and crossing the fulcrum.

In the working state of the ridge coating machine 10 according to the present embodiment, the ground contact portion 700 is urged downward (to the old ridge) by its own weight. For example, while the grounding part 700 slides on the old ridge, even if the grounding part 700 rides on a stone or the like and is flipped up, it is possible to prevent the grounding part 700 from being excessively stressed. be able to. As a result, for example, it is possible to suppress damage to the shear bolts or the like that support the work claws provided in the upright processing unit 600.

Although the present invention has been described above with reference to the drawings, the present invention is not limited to the above-described embodiments and can be appropriately modified without departing from the spirit of the present invention.

10: Ridge coating machine, 100: Mounting part, 101: Top mast, 103: Lower link connecting part, 107: Input shaft, 110: Hitch frame, 200: Offset mechanism part, 210: Offset frame, 211: Rotating shaft, 213: rotating shaft, 220: link rod, 221: rotating shaft, 223: rotating shaft, 230: support frame, 240: power unit, 300: power transmitting unit, 400: working unit, 410: frame, 500: Ridge forming part, 510: Top surface forming part, 520: Slope forming part, 600: Overground processing part, 610: Working rotor, 620: Cover member, 700: Grounding part, 710: Sliding part, 711: Grounding surface, 713 : Tip part, 720: Rod connecting part, 721: Opening, 730: Rib, 731: Opening, 740: Connecting rod, 741: Opening, 743: Connecting part, 745: Opening, 747: Recessed part, 749: Cylindrical member, 750: Mounting seat, 760: Mounting pin, 790: Fastener, 800: Link mechanism part, 810: Mounting seat, 811, 821, 831: Rotating shaft, 820: First link arm, 830: Second link arm, 833: End portion, 840: First stopper, 850: Second stopper, 860: Third stopper, 870: Hook, 900: Pretreatment portion, 910: Working rotor, 920: Cover member

Claims (5)

A ridge forming portion having an upper surface forming portion forming an upper surface of the ridge and a slope forming portion forming a slope of the ridge;
An heaven field processing section that is provided in front of the upper surface forming section, breaks down the heaven field of the old ridge, and can swing up and down.
Attached to the above-mentioned heaven processing section, and having a grounding section that can be vertically swung together with the above-mentioned heaven processing section,
The grounding unit includes a slide unit having a grounding surface in contact with the upper surface of the ridge, and a connecting rod connecting the upside-down processing unit and the sliding unit,
The ridge coater in which the slide portion is movably connected to the connecting rod. The ridge coater according to claim 1, wherein the slide portion is connected to the connecting rod in the vicinity of an end portion of the connecting rod so as to be rotatable about a rotating shaft extending in a traveling direction. .. In the working state, the sky field processing section and the grounding section are pressed in the ridge direction by the weight of the sky field processing section and the grounding section, and are urged by a mechanism other than the sky field processing section and the grounding section. The ridge coater according to claim 1 or 2, which is not provided. The heavens processing unit has a cover unit,
The ridge coater according to any one of claims 1 to 3, wherein the ground contact portion is located closer to the pretreatment portion than an end portion of the cover portion in a direction orthogonal to the traveling direction in a top view. .. The ridge coater according to claim 2, wherein the connecting rod has a concave portion at an end portion on the slide portion side in a cross section orthogonal to a direction in which a rotation axis of the slide portion extends.

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