JP6909105B2 - Root vegetable harvester - Google Patents

Description

The present invention relates to a root vegetable harvester including a transporting portion that transports root vegetables backward with the stems and leaves of the root vegetables sandwiched, and a raising portion that is arranged in front of the transporting portion to cause the stems and leaves of the root vegetables.

Conventionally, as a root vegetable harvester, a transport section for transporting root vegetables backward with the root vegetable foliage sandwiched between them, and a first and second raising section arranged in front of the transport section to cause the root vegetable foliage. A root vegetable harvester comprising the above is known (for example, Patent Document 1). Then, each raising portion includes a belt that rotates endlessly and a protruding portion that protrudes from the belt in order to cause the foliage of root vegetables.

The belt of the first raising portion rotates endlessly along the surface intersecting the front-rear direction, and the belt of the second raising portion rotates endlessly along the surface parallel to the front-rear direction. As a result, the function of the first raising portion and the function of the second raising portion are different.

By the way, in the root vegetable harvester according to Patent Document 1, the transport unit, the first raising unit and the second raising unit are integrally rotated with respect to the machine body in consideration of non-working time and traveling on the road. Can move. However, since the positions of the first raising portion and the second raising portion cannot be changed with respect to the conveying portion, the positions of the respective raising portions with respect to the conveying portion and the positions of the second raising portion with respect to the first raising portion are not appropriate. In that case, there is a risk that the root vegetables cannot be properly transported by the transport unit.

Japanese Unexamined Patent Publication No. 11-75461

Therefore, an object of the present invention is to provide a root vegetable harvester capable of appropriately adjusting the position of each raising portion and the position between each raising portion with respect to the conveying portion.

The root vegetable harvester is a root vegetable harvester that travels forward when harvesting root vegetables, and is located on a surface that intersects the front-rear direction with a transport unit that transports root vegetables backward with the stems and leaves of the root vegetables sandwiched between them. A first raising portion having a first belt that rotates endlessly along the first belt and a protruding portion protruding from the first belt to cause the foliage of the root vegetable, and a first raising portion arranged in front of the transport portion. It has a second belt that rotates endlessly along a plane parallel to the front-back direction, and a protruding portion that protrudes from the second belt in order to cause the foliage of the root vegetable, and is arranged in front of the transport portion. The second raising portion, the first position changing portion for changing the vertical position of the first raising portion with respect to the conveying portion, and the vertical raising portion of the second raising portion with respect to the conveying portion and the first raising portion. A second position changing unit for changing the position is provided.

Further, in the root vegetable harvester, the first position changing portion may be configured such that the first raising portion and the second raising portion are integrated and displaced in the vertical direction with respect to the conveying portion.

Further, in the root vegetable harvester, the maximum distance that the second raising portion can be displaced in the vertical direction with respect to the first raising portion and the conveying portion is such that the first raising portion and the second raising portion are the conveying portion. It may be configured to be larger than the maximum distance that can be displaced in the vertical direction D.

Further, the root vegetable harvester includes a driving unit for operating the first raising portion and the second raising portion, and the driving portion uses a rotating rotating shaft and the rotational force of the rotating shaft as the first raising portion. The second transmission unit includes a first transmission unit that transmits the rotational force of the rotating shaft to the second raising unit, and the second position changing unit transmits the rotational force of the rotating shaft to the second raising unit. The second transmission portion may be rotated around the rotation axis when the position of the raising portion in the vertical direction is changed.

Further, in the root vegetable harvester, the second position changing portion includes a plurality of links, and the first end portion of each of the plurality of links is rotatably connected to the first raising portion, and the plurality of links are rotatably connected. Each second end of the link may be rotatably connected to the second raising portion.

In addition, the root vegetable harvester has a first operation unit that is operated when the position of the first raising unit is changed by the first position changing unit, and a position of the second raising unit that is operated by the second position changing unit. The first operating unit and the second operating unit may be arranged in parallel above the first raising unit, respectively, with a second operating unit to be operated when the above is changed.

As described above, the root vegetable harvester has an excellent effect that the position of each raising part and the position between each raising part with respect to the conveying part can be made appropriate.

FIG. 1 is an overall right side view of the root vegetable harvester according to the embodiment. FIG. 2 is an overall plan view of the root vegetable harvester according to the same embodiment. FIG. 3 is an overall front view of the root vegetable harvester according to the same embodiment. FIG. 4 is a schematic front view of each raising portion according to the same embodiment. FIG. 5 is a schematic right side view of each raising portion according to the same embodiment. FIG. 6 is a schematic plan view of the drive unit according to the embodiment. FIG. 7 is a schematic right side view of a main part of the root vegetable harvester according to the same embodiment. FIG. 8 is a schematic right side view of a main part of the root vegetable harvester according to the same embodiment, showing a state in which the first raising part and the second raising part are displaced with respect to the conveying part. FIG. 9 is a schematic right side view of a main part of the root vegetable harvester according to the same embodiment, showing a state in which the second raising portion is displaced with respect to the first raising portion. FIG. 10 is a schematic front view of a main part showing a situation in which the root vegetable harvester according to the embodiment harvests the root vegetables in the center of the ridge. FIG. 11 is a schematic front view of a main part showing a situation in which the root vegetable harvester according to the same embodiment harvests root vegetables at the ends of the ridges. FIG. 12 is a schematic plan view of a drive unit according to another embodiment. FIG. 13 is a schematic plan view of the drive unit according to still another embodiment. FIG. 14 is a schematic plan view of the drive unit according to still another embodiment.

Hereinafter, an embodiment of the root vegetable harvester will be described with reference to FIGS. 1 to 11. In each drawing (the same applies to FIGS. 12 to 14), the dimensional ratio of the drawings and the actual dimensional ratio do not always match, and the dimensional ratios between the drawings do not necessarily match. do not have.

As shown in FIGS. 1 to 3, the root vegetable harvester 1 according to the present embodiment pulls out the root vegetables X1 such as carrots and radishes buried in the ridges X2 from the ridges X2 and harvests them. It is a thing. The root vegetable X1 includes a root portion buried in the ridge X2 and a foliage exposed from the ridge X2.

The root vegetable harvester 1 has a transport unit 2 that transports the root vegetable X1 backward with the foliage of the root vegetable X1 sandwiched between them, and a first raising unit that is arranged in front of the transport unit 2 in order to cause the foliage of the root vegetable X1. 3 and a second raising unit 4 are provided. The root vegetable harvester 1 is provided with a digging portion 8 for digging up the soil around the root portion of the root vegetable X1.

Further, the root vegetable harvester 1 includes a drive source (engine) 1a and a drive unit 5 that transmits the drive of the drive source 1a to the respective units 2 to 4 and 8 to operate the respective units 2 to 4 and 8. Then, the root vegetable harvester 1 travels forward when harvesting the root vegetable X1.

In FIGS. 1 to 3 (the same applies to FIGS. 4 and later), the first direction D1 is the front-rear direction D1, the second direction D2 is the left-right direction D2, and the third direction D3 is the vertical direction. It is D3. In the first direction D1, the arrow direction is the front direction and the opposite direction is the rear direction, and in the second direction D2, the arrow direction is the right direction and the opposite direction is the left direction. It is a direction, and in the third direction D3, the arrow direction is an upward direction, and the opposite direction is a downward direction.

The root vegetable harvester 1 includes a cutting portion 1b that cuts between the root portion and the foliage of the root vegetable X1 transported by the transport unit 2 in order to remove the foliage from the root portion of the root vegetable X1. The root vegetable harvester 1 includes a carrying-out unit 1c for carrying out the root vegetables X1 from which the foliage has been removed by the cutting section 1b, and a discharging section 1d for discharging the foliage cut by the cutting section 1b. Further, the root vegetable harvester 1 includes a container stand 1e on which a container (not shown) for accommodating the root vegetables X1 carried out by the carrying-out unit 1c is placed.

The root vegetable harvester 1 includes a first seat 1f for a worker who performs driving and the like to sit, and a second seat 1g for a worker who performs work such as a carry-out unit 1c and a container stand 1e to sit. Further, the root vegetable harvester 1 includes a machine body 10 to which each part 1a to 1g and 2 to 5 are fixed, and a crawler 1h arranged below the machine body 10.

As shown in FIGS. 4 and 5, the transport unit 2 has a pair of annular transport belts 2a, which rotate endlessly in order to transport the root vegetables X1 (not shown in FIGS. 4 to 9). It has 2a. Further, the transport unit 2 includes a plurality of rotating bodies 2b, 2c, 2d that are wound around the transport belt 2a and rotate in order to rotate the transport belt 2a endlessly. Specifically, the transport unit 2 rotates the front rotating body 2b arranged at the front end, the rear rotating body 2c arranged at the rear end, and the front rotating body 2b and the rear rotating body 2b in order to tension the transport belt 2a. It is provided with an intermediate rotating body 2d arranged between the body 2c and the body 2c.

The machine body 10 includes a transport cover body 10c that covers and accommodates a part of the transport belt 2a. In FIG. 4, the transport cover body 10c is shown by a broken line so that the configuration of the transport unit 2 can be inspected. Further, the machine body 10 includes a first support portion 10d and a second support portion 10e for supporting the first raising portion 3, and a frame 10f for ensuring strength, for example. The second support portion 10e supports the first raising portion 3 via the first position changing portion 6 described later.

The excavation portion 8 includes a pair of blades 8a and 8a arranged in parallel in the left-right direction D2, and an operation portion 8b for operating the blades 8a. The blade body 8a is arranged below and behind the first raising portion 3, and the tip end portion (lower end portion) of the blade body 8a is a ridge X2 (in FIGS. 4 to 9, FIG. (Not shown) is plugged into. Further, the moving unit 8b is rotatably connected to the machine body 10, and the blade body 8a swings by transmitting the drive of the driving unit 5 to the blade body 8a. As a result, the soil around the root vegetable X1 is dug up and softened.

The first raising portion 3 has an annular first belt 3a that rotates endlessly along a surface (virtual surface) intersecting the front-rear direction D1 and a first belt 3a along the surface in order to cause the foliage of the root vegetable X1. It is provided with a plurality of projecting portions 3b that project outward from the surface. The first belt 3a according to the present embodiment has a configuration in which it rotates endlessly along a surface that is inclined and intersects with the front-rear direction D1. The first belt 3a may be configured to rotate endlessly along a plane orthogonal to the front-rear direction D1, for example.

The first raising portion 3 includes a first cover body 3c that covers and accommodates a part of the first belt 3a. In addition, in FIGS. 4 and 5, the first cover body 3c is shown by a broken line so that the configuration of the first belt 3a and the like can be inspected.

Further, the first raising portion 3 includes a plurality of rotating bodies 3d, 3e, and 3g that are wound around the first belt 3a and rotate in order to rotate the first belt 3a endlessly. Specifically, the first raising portion 3 has a first upper rotating body 3d arranged at the upper end, a first lower rotating body 3e arranged at the lower end, and a first belt 3a in order to tension the first belt 3a. 1 An intermediate rotating body 3g arranged between the upper rotating body 3d and the first lower rotating body 3e is provided.

The first upper rotating body 3d is a driving rotating body whose drive is transmitted by a driving unit 5 (not shown in FIGS. 4 and 5), and the first lower rotating body 3e has a first belt 3a. It is a driven rotating body that rotates as it rotates. The first lower rotating body 3e and the intermediate rotating body 3g are rotatably connected to the first cover body 3c by the connecting mechanism 3h, respectively.

The second raising portion 4 has an annular second belt 4a that rotates endlessly along a plane (virtual plane) parallel to the front-rear direction D1 and a second belt 4a along the plane in order to cause the foliage of the root vegetable X1. It is provided with a plurality of projecting portions 4b that project outward from the surface. The second raising portion 4 is arranged in front of the first raising portion 3. Further, the second raising portion 4 is arranged laterally (to the left, on the right side in FIG. 4) with respect to the first raising portion 3.

The second raising portion 4 includes a second cover body 4c that covers and accommodates a part of the second belt 4a. In addition, in FIG. 4 and FIG. 5, the second cover body 4c is shown by a broken line so that the configuration of the second belt 4a and the like can be inspected.

Further, the second raising portion 4 includes a plurality of rotating bodies 4d and 4e that are wound around the second belt 4a and rotate in order to rotate the second belt 4a endlessly. Specifically, the second raising portion 4 includes a second upper rotating body 4d arranged at the upper end and a second lower rotating body 4e arranged at the lower end.

The second upper rotating body 4d is a driving rotating body whose drive is transmitted by a driving unit 5 (not shown in FIGS. 4 and 5), and the second lower rotating body 4e has a second belt 4a. It is a driven rotating body that rotates as it rotates. The second lower rotating body 4e is rotatably connected to the second cover body 4c by the connecting mechanism 4f.

The surface along which the second belt 4a rotates endlessly intersects the surface along which the first belt 3a rotates endlessly. In the present embodiment, the surface along which the second belt 4a rotates endlessly is orthogonal to the surface along which the first belt 3a rotates endlessly. The surface along which the second belt 4a rotates endlessly may be inclined and intersects with the surface along which the first belt 3a rotates endlessly, for example.

As a result, the function of the first raising unit 3 and the function of the second raising unit 4 are different. For example, the first raising portion 3 mainly has a function of causing a foliage that has fallen in the anteroposterior direction D1, and the second raising portion 4 has a function of mainly causing a foliage that has fallen in the left-right direction D2. Therefore, the foliage is caused by the first raising part 3 and the second raising part 4 in any direction.

As shown in FIG. 6, the drive unit 5 includes a main rotating body 51 that rotates under the drive of a drive source 1a (not shown in FIG. 6). The drive unit 5 includes a plurality of transmission elements (rotating shaft, gear mechanism, winding transmission mechanism, etc.) in order to transmit the drive of the drive source 1a to the main rotating body 51. In FIG. 6, only the belt 52 is shown among the plurality of transmission elements.

The drive unit 5 includes a first rotating shaft 53 that is fixed to the main rotating body 51 and rotates integrally with the main rotating body 51. Further, the drive unit 5 is for rotating the first transmission unit 54 that transmits the rotational force of the first rotation shaft 53 to the first raising unit 3 and the second belt 4a in order to rotate the first belt 3a. A second transmission unit 55 that transmits the rotational force of the first rotation shaft 53 to the second raising unit 4 is provided.

The first transmission unit 54 has a first gear mechanism 54a that transmits the rotational force of the first rotary shaft 53 by changing the axial direction, and a first transmission shaft that rotates by receiving the force transmitted from the first gear mechanism 54a. It is equipped with 54b. Then, the first upper rotating body 3d of the first raising portion 3 is fixed to the first transmission shaft 54b and rotates integrally with the first transmission shaft 54b.

In this way, the rotational force of the first rotating shaft 53 is transmitted to the first belt 3a via the first gear mechanism 54a, the first transmission shaft 54b, and the first upper rotating body 3d. Therefore, the first transmission unit 54 transmits the rotational force of the first rotation shaft 53 to the first raising unit 3 to rotate the first belt 3a.

The second transmission unit 55 is transmitted from the second gear mechanism 55a and the second gear mechanism 55a, which transmit the rotational force of the first rotating shaft 53 by changing the rotation direction via the first gear mechanism 54a. It is provided with a second transmission shaft 55b that rotates by receiving a force. The axial direction of the second transmission shaft 55b coincides with the axial direction of the first rotation shaft 53.

Further, the second transmission unit 55 includes a rotating first rotating body 55c and a second rotating body 55d, and an annular transmission member 55e that is wound around the first and second rotating bodies 55c and 55d and rotates endlessly. ing. The first rotating body 55c is fixed to the second transmission shaft 55b and rotates integrally with the second transmission shaft 55b.

Further, the second transmission unit 55 includes a second rotating shaft 55f that is fixed to the second rotating body 55d and rotates integrally with the second rotating body 55d. Then, the second upper rotating body 4d of the second raising portion 4 is fixed to the second rotating shaft 55f and rotates integrally with the second rotating shaft 55f. The second rotation shaft 55f is arranged in parallel with the first rotation shaft 53.

As described above, the rotational force of the first rotating shaft 53 is the first gear mechanism 54a, the second gear mechanism 55a, the second transmission shaft 55b, the first rotating body 55c, the transmission member 55e, the second rotating body 55d, and the second. It is transmitted to the second belt 4a via the rotating shaft 55f and the second upper rotating body 4d. Therefore, the second transmission unit 55 transmits the rotational force of the first rotation shaft 53 to the second raising unit 4 to rotate the second belt 4a.

Further, the drive unit 5 accommodates the main rotating body 51, the belt 52 and the like, the gear mechanisms 54a and 55a, the rotating bodies 55c and 55d and the transmission member 55e, the rotating shafts 53 and 55f, and the transmission shafts 54b and 55b, respectively. A plurality of housings 56 are provided. Further, in the drive unit 5, the rotating shafts 53, 55f and the transmission shafts 54b, 55b are rotatably supported by the accommodating body 56, so that the rotating shafts 53, 55f and the transmission shafts 54b, 55b and the accommodating body 5 are supported. A bearing 57 is provided between the 56 and the 56. Further, the accommodating bodies 56 and 56 and the cover bodies 3c and 4c are fixed to each other.

In the present embodiment, the first and second gear mechanisms 54a and 55a are bevel gears. The first and second gear mechanisms 54a and 55a may be configured to be, for example, a face gear, a hypoid gear, a screw gear, or a worm gear.

Further, in the present embodiment, the first and second rotating bodies 55c and 55d are sprockets, and the transmission member 55e is a chain. For example, the first and second rotating bodies 55c and 55d may be sprocket, and the transmission member 55e may be a timing belt. For example, the first and second rotating bodies 55c and 55d may be configured. , The transmission member 55e may be a belt (flat belt, V-belt).

As shown in FIG. 7, the root vegetable harvester 1 has a first position changing section 6 that changes the position of the first raising section 3 in the vertical direction D3 with respect to the conveying section 2, and a first position changing section 6 with respect to the conveying section 2 and the first raising section 3. 2 A second position changing portion 7 for changing the position of the raising portion 4 in the vertical direction D3 is provided. In the present embodiment, the first position changing portion 6 integrates the first raising portion 3 and the second raising portion 4 and displaces the first raising portion 3 and the second raising portion 4 in the vertical direction D3 with respect to the conveying portion 2, and the second position changing portion 7 is , The second raising portion 4 is displaced in the vertical direction D3 with respect to the conveying portion 2 and the first raising portion 3.

Further, the root vegetable harvester 1 has a first operation unit 1i that is operated when the position of the first raising unit 3 is changed by the first position changing unit 6, and a second raising unit 4 that is operated by the second position changing unit 7. It is provided with a second operation unit 1j that is operated when the position of is changed. The first operation unit 1i and the second operation unit 1j are arranged in parallel above the first raising unit 3, respectively.

As a result, since the first operation unit 1i and the second operation unit 1j are arranged close to each other, the work of changing the positions of the raising units 3 and 4 becomes easy. For example, a worker who performs driving or the like can operate each of the operation units 1i and 1j while sitting on the first seat 1f (not shown in FIG. 7). In the present embodiment, the first operation unit 1i and the second operation unit 1j are arranged in parallel in the front-rear direction D1.

The first position changing portion 6 has a first male screw portion 6a that is screwed with a first female screw portion 10a provided on the second support portion 10e of the machine body 10, and an upper end portion that can rotate to a lower end portion of the first male screw portion 6a. It includes a first connection link 6b to be connected. The upper end of the first male threaded portion 6a is fixed to the first operating portion 1i, and the lower end of the first connecting link 6b is the accommodating body 56 of the driving portion 5 (specifically, the first rotating shaft). It is fixed to the housing 56) that houses 53.

The first raising portion 3 includes a guided portion 3f that is guided by the machine body 10 when the first raising portion 3 is displaced with respect to the transport portion 2. The guided portion 3f is formed in a concave shape, and the first support portion 10d of the machine body 10 includes a convex guide portion 10b that is arranged inside the guided portion 3f and guides the guided portion 3f. ..

The second position changing portion 7 has a second female threaded portion 7a fixed to the first cover body 3c of the first raising portion 3, a second male threaded portion 7b screwed with the second female threaded portion 7a, and an upper end portion having a first position. A second connection link 7c that is rotatably connected to the lower end of the two male threaded portion 7b is provided. The upper end of the second male threaded portion 7b is fixed to the second operating portion 1j, and the lower end of the second connecting link 7c is rotatably connected to the second cover body 4c of the second raising portion 4. ing.

Further, the second position changing unit 7 includes a plurality of links 7d. In the present embodiment, two links 7d are provided. The link 7d may be provided with, for example, three or more links. Then, the first end portion 7e of each link 7d is rotatably connected to the first raising portion 3 (specifically, the first cover body 3c), and the second end portion 7f of each link 7d is the second. It is rotatably connected to the raising portion 4 (specifically, the second cover body 4c).

In the plurality of links 7d, the distance W1 between the rotation center position of the first end portion 7e and the rotation center position of the second end portion 7f is the same. The distance W1 is the same as the distance W2 between the rotation center position of the first rotation shaft 53 and the rotation center position of the second rotation shaft 55f.

Further, in the plurality of links 7d, the directions connecting the rotation center position of the first end portion 7e and the rotation center position of the second end portion 7f are parallel to each other. The direction is also parallel to the direction connecting the rotation center position of the first rotation shaft 53 and the rotation center position of the second rotation shaft 55f. Therefore, the plurality of links 7d and 7d and the respective raising portions 3 and 4 (specifically, the respective cover bodies 3c and 4c) form a parallel link mechanism.

The configuration of the root vegetable harvester 1 according to the present embodiment is as described above. Next, the operation of the root vegetable harvester 1 according to the present embodiment will be described with reference to FIGS. 7 to 9.

For example, when the first operating portion 1i is operated from the state of FIG. 7, the first male threaded portion 6a is screwed with the first female threaded portion 10a, so that the first male threaded portion 6a is as shown in FIG. Is displaced downward with respect to the first female thread portion 10a. As a result, each of the first connection link 6b, the drive unit 5, the first raising unit 3, the second raising unit 4, the second position changing unit 7, and the second operating unit 1j is downward with respect to the machine body 10. Displace.

Therefore, the first raising portion 3 and the second raising portion 4 are integrally displaced by the first position changing portion 6 in the vertical direction D3 with respect to the machine body 10, the transport portion 2, and the excavation portion 8. At this time, since the guided portion 3f is guided by the guide portion 10b, the first raising portion 3 and the second raising portion 4 are subjected to the machine body 10, the transport portion 2, and the excavation along the guided direction. Displace with respect to the portion 8. In FIG. 8, the distance W3 is the distance that the first raising portion 3 and the second raising portion 4 are displaced in the vertical direction D3 (specifically, the downward direction) with respect to the conveying portion 2 from the state of FIG. Is shown.

Further, for example, when the second operating portion 1j is operated from the state of FIG. 7, the second male screw portion 7b is screwed with the second female screw portion 7a, so that the second male screw is screwed as shown in FIG. The portion 7b is displaced downward with respect to the second female thread portion 7a. As a result, each of the second connecting link 7c and the second raising portion 4 is displaced downward with respect to the first raising portion 3. Therefore, the second raising portion 4 is displaced in the vertical direction D3 with respect to the first raising portion 3, the machine body 10, the transport portion 2, and the excavation portion 8 by the second position changing portion 7.

At this time, since the plurality of links 7d and 7d and the cover bodies 3c and 4c form a parallel link mechanism, the second transmission unit 55 rotates about the first rotation shaft 53. In FIG. 9, the distance W4 is such that the second raising portion 4 is vertically D3 (specifically, the transport portion 2 and the excavating portion 8) with respect to the first raising portion 3 (and the conveying portion 2 and the excavation portion 8) from the state of FIG. It shows the distance displaced downward).

By the way, the maximum distance W4 at which the second raising portion 4 can be displaced in the vertical direction D3 with respect to the first raising portion 3 (and the conveying portion 2 and the excavated portion 8) by the second position changing portion 7 is the first position. Due to the changing portion 6, the first raising portion 3 and the second raising portion 4 are larger than the maximum distance W3 that can be displaced in the vertical direction D3 with respect to the conveying portion 2 and the excavating portion 8. For example, the maximum distance W4 of the former by the second position changing unit 7 is 150 mm, whereas the maximum distance W3 of the latter by the first position changing unit 6 is 80 mm.

Next, in the root vegetable harvester 1 according to the present embodiment, an example in which the positions are changed by the position changing units 6 and 7 will be described with reference to FIGS. 10 and 11.

First, as an example in which the position change by the first position change unit 6 is necessary, for example, as shown in FIG. 10, there is a case where the root vegetable X1 buried in the center of the ridge X2 is harvested. In such a case, the lower end portion of the first raising portion 3 (specifically, the first belt 3a) and the lower end portion of the second raising portion 4 (specifically, the second belt 4a) are the same. Must be high.

On top of that, the lower ends of the raising portions 3 and 4 need to be positioned appropriately with respect to the lower end portions of the conveying portion 2. For example, in the case of short foliage or frost withering, each of the raising parts 3 and 4 is displaced upward with respect to the carrying part 2, and when, for example, stones, soil, etc. are sandwiched too much, each raising part 3 and 4 are displaced upward. The 3 and 4 are displaced downward with respect to the transport unit 2. In this way, since the first raising portion 3 and the second raising portion 4 are integrally displaced with respect to the conveying portion 2, the positions of the first raising portion 3 and the second raising portion 4 with respect to the conveying portion 2 can be easily positioned. Can be changed.

Next, as an example in which the position change by the second position change unit 7 is necessary, for example, as shown in FIG. 11, there is a case where the root vegetable X1 buried in the end of the ridge X2 is harvested. In such a case, a part of the foliage of the root vegetable X1 is laid down on the top surface of the ridge X2, and the other part of the foliage is laid down on the lateral slope of the ridge X2.

As a result, the lower end of the second raising portion 4 (specifically, the second belt 4a) is located below the lower end of the first raising portion 3 (specifically, the first belt 3a). There is a need. Then, the first raising portion 3 causes the foliage that has fallen on the top surface of the ridge X2, and the second raising portion 4 causes the foliage that has fallen on the lateral slope of the ridge X2.

As described above, not only the foliage that has fallen on the top surface of the ridge X2 but also the foliage that has fallen on the lateral slope of the ridge X2 can be easily caused. Although the blade body 8a of the excavation portion 8 is not shown in FIG. 11, for example, the lower end portion of the second raising portion 4 (specifically, the second belt 4a) may be formed as needed. It may be located below the lower end of the blade 8a.

Further, when changing the positions of the first raising portion 3 and the second raising portion 4 with respect to the conveying portion 2, or changing the positions of the second raising portion 4 with respect to the first raising portion 3, FIGS. 10 and 11 show. It is not limited to such cases. For example, the lower end of the second raising portion 4 (specifically, the second belt 4a) is located above the lower end of the first raising portion 3 (specifically, the first belt 3a). In addition, the positions of the raising portions 3 and 4 may be changed.

From the above, the root vegetable harvester 1 according to the present embodiment is a root vegetable harvester 1 that travels forward when harvesting the root vegetable X1, and the root vegetable X1 is directed backward with the stems and leaves of the root vegetable X1 sandwiched between them. The transporting portion 2 to be conveyed, the first belt 3a that rotates endlessly along the surface intersecting the front-rear direction D1, and the protruding portion 3b protruding from the first belt 3a in order to cause the foliage of the root vegetable X1. In order to cause the first raising portion 3 which is arranged in front of the transport portion 2, the second belt 4a which rotates endlessly along the plane parallel to the front-rear direction D1, and the foliage of the root vegetable X1. A second raising portion 4 having a protruding portion 4b protruding from the second belt 4a and arranged in front of the conveying portion 2, and a vertical direction D3 of the first raising portion 3 with respect to the conveying portion 2. A first position changing section 6 for changing the position of the second raising section 4 and a second position changing section 7 for changing the position of the second raising section 4 in the vertical direction D3 with respect to the transport section 2 and the first raising section 3. ..

According to such a configuration, the position of the first raising portion 3 in the vertical direction D3 with respect to the conveying portion 2 can be changed by the first position changing portion 6, and the second raising portion with respect to the conveying portion 2 and the first raising portion 3. The position of D3 in the vertical direction of 4 can be changed by the second position changing unit 7. As a result, the positions of the raising portions 3 and 4 with respect to the conveying portion 2 (specifically, the position of the first raising portion 3 with respect to the conveying portion 2 and the position of the second raising portion 4 with respect to the conveying portion 2) and each raising portion 3 , 4 (specifically, the position of the second raising portion 4 with respect to the first raising portion 3) can be made appropriate.

Further, in the root vegetable harvester 1 according to the present embodiment, the first position changing section 6 integrates the first raising section 3 and the second raising section 4 in the vertical direction with respect to the transport section 2. It is configured to be displaced to D3.

According to such a configuration, the first raising portion 3 and the second raising portion 4 are integrally displaced by the first position changing portion 6 in the vertical direction D3 with respect to the conveying portion 2. The positions of the first raising portion 3 and the second raising portion 4 in the vertical direction D3 with respect to 2 can be changed. As a result, the positions of the first raising portion 3 and the second raising portion 4 in the vertical direction D3 with respect to the conveying portion 2 can be changed without changing the positions of the second raising portion 4 with respect to the first raising portion 3. ..

Further, in the root vegetable harvester 1 according to the present embodiment, the maximum distance W4 at which the second raising portion 4 can be displaced in the vertical direction D3 with respect to the first raising portion 3 and the conveying portion 2 is the first. The structure is such that the raising portion 3 and the second raising portion 4 are larger than the maximum distance W3 that can be displaced in the vertical direction D3 with respect to the conveying portion 2.

According to such a configuration, the second raising portion 4 can be largely displaced in the vertical direction D3 with respect to the first raising portion 3 and the conveying portion 2. Thereby, for example, the second raising portion 4 can easily cause the foliage that has fallen on the lateral slope of the ridge X2.

Further, the root vegetable harvester 1 according to the present embodiment includes a driving unit 5 for operating the first raising unit 3 and the second raising unit 4, and the driving unit 5 includes a rotating shaft 53 and the rotating shaft 53. A first transmission unit 54 that transmits the rotational force of the rotating shaft 53 to the first raising unit 3 and a second transmitting unit 55 that transmits the rotational force of the rotating shaft 53 to the second raising unit 4 are provided. The second position changing portion 7 rotates the second transmitting portion 55 around the rotating shaft 53 when changing the position of the second raising portion 4 in the vertical direction D3 with respect to the first raising portion 3. It is a composition to let.

According to such a configuration, the rotation shaft 53 rotates, the first transmission unit 54 transmits the rotational force of the rotation shaft 53 to the first raising unit 3a, and the second transmission unit 55 causes the rotation shaft 53. The rotational force of the above is transmitted to the second raising portion 4. As a result, the drive unit 5 operates the first raising unit 3 and the second raising unit 4.

Then, when the position of the second raising portion 4 in the vertical direction D3 with respect to the first raising portion 3 is changed, the second transmitting portion 55 rotates about the rotation shaft 53. As a result, even if the position of the second raising portion 4 in the vertical direction D3 with respect to the first raising portion 3 is changed, the rotational force of the rotating shaft 53 is transmitted to the second raising portion 4 by the second transmitting portion 55. ..

Further, in the root vegetable harvester 1 according to the present embodiment, the second position changing portion 7 includes a plurality of links 7d, and the first end portion 7e of each of the plurality of links 7d is the first raising portion. 3 is rotatably connected, and the second end portion 7f of each of the plurality of links 7d is rotatably connected to the second raising portion 4.

According to such a configuration, in the plurality of links 7d, each first end portion 7e is rotatably connected to the first raising portion 3, and each second end portion 7f is rotated to the second raising portion 4. It is connected as possible. As a result, when the second raising portion 4 is displaced with respect to the first raising portion 3, the second transmitting portion 55 is restricted by the plurality of links 7d on the trajectory when the second raising portion 4 is displaced. Rotate to the center.

Further, the root vegetable harvester 1 according to the present embodiment has a first operation unit 1i and a second position change that are operated when the position of the first raising unit 3 is changed by the first position change unit 6. The first operating unit 1i and the second operating unit 1j are each provided with a second operating unit 1j that is operated when the position of the second raising unit 4 is changed by the unit 7. The configuration is such that they are arranged in parallel above the part 3.

According to such a configuration, the first operation unit 1i is operated when the position of the first raising unit 3 is changed by the first position changing unit 6, and the second operation unit 1j is operated by the second position changing unit 7. It is operated when the position of the second raising portion 4 is changed by. Since the first operation unit 1i and the second operation unit 1j are arranged in parallel above the first raising unit 3, they are arranged close to each other.

The root vegetable harvester 1 is not limited to the configuration of the above-described embodiment, and is not limited to the above-mentioned action and effect. In addition, it goes without saying that the root vegetable harvester 1 can be modified in various ways without departing from the gist of the present invention. For example, it goes without saying that one or a plurality of configurations and methods according to the following various modification examples may be arbitrarily selected and adopted for the configurations and methods according to the above-described embodiment.

(1) In the root vegetable harvester 1, the drive unit 5 can adopt various configurations as shown in FIGS. 12 to 14. In any of the drive units 5 according to FIGS. 12 to 14, when the position of the second raising unit 4 in the vertical direction D3 with respect to the first raising unit 3 is changed, the second transmission unit 55 is the first. It can rotate about the rotation shaft 53.

(1-1) The drive unit 5 according to FIG. 12 has a configuration in which the positions of the main rotating body 51 and the belt 52 are different from those of the drive unit 5 according to the above embodiment. As a result, the second gear mechanism 55a and the second transmission shaft 55b of the second transmission unit 55 do not exist, the first rotation shaft 53 is fixed to the first rotation body 55c, and the first rotation body 55c , It rotates integrally with the first rotation shaft 53.

(1-2) The drive unit 5 according to FIG. 13 has a main rotation shaft 58 that rotates and a main rotation that does not have the main rotating body 51 and the belt 52 with respect to the drive unit 5 according to the above embodiment. It is configured to include a main gear mechanism 59 that transmits the rotational force of the shaft 58 to the first rotating shaft 53 by changing the axial direction. Then, the first rotating shaft 53 is fixed to the first rotating body 55c, and the first rotating body 55c rotates integrally with the first rotating body 53.

(1-3) In the drive unit 5 according to FIG. 14, the second transmission unit 55 is not a winding transmission mechanism 55c to 55e but a gear mechanism 55g, 55i with respect to the drive unit 5 according to the above embodiment. It is a configuration that The second transmission unit 55 has a gear mechanism 55g that transmits the rotational force of the first rotary shaft 53 by changing the axial direction, a transmission shaft 55h that rotates by receiving the force transmitted from the gear mechanism 55g, and the transmission. It is provided with a gear mechanism 55i that transmits the rotational force of the shaft 55h to the second rotating shaft 55f by changing the axial direction.

(2) Further, in the root vegetable harvester 1 according to the above embodiment, the first position changing section 6 integrates the first raising section 3 and the second raising section 4 in the vertical direction with respect to the transport section 2. It is configured to be displaced to D3. However, the root vegetable harvester 1 is not limited to such a configuration. For example, the first position changing portion 6 may have a configuration in which the first raising portion 3 is displaced in the vertical direction D3 with respect to the second raising portion 4 and the conveying portion 2.

(3) Further, in the root vegetable harvester 1 according to the above embodiment, the first position changing unit 6 displaces the first raising unit 3 in the vertical direction D3 with respect to the transport unit 2 and the machine body 10. Is. However, the root vegetable harvester 1 is not limited to such a configuration. For example, the first position changing unit 6 changes the position of the first raising unit 3 with respect to the conveying unit 2 by displacing the conveying unit 2 in the vertical direction D3 with respect to the first raising unit 3 and the machine body 10. It may be configured as.

(4) Further, in the root vegetable harvester 1 according to the above embodiment, the second position changing unit 7 causes the second raising unit 4 to move vertically with respect to the first raising unit 3, the transport unit 2, and the machine body 10. It is configured to be displaced to D3. However, the root vegetable harvester 1 is not limited to such a configuration. For example, the second position changing unit 7 displaces the transport unit 2 and the first pulling unit 3 in the vertical direction D3 with respect to the second raising unit 4 and the machine body 10, so that the transport unit 2 and the first raising unit 3 are displaced. The position of the second raising portion 4 with respect to the relative may be changed.

(5) Further, in the root vegetable harvester 1 according to the above embodiment, the second position changing unit 7 is provided with a plurality of links 7d, so that the second raising unit 4 is provided with respect to the first raising unit 3. It is configured to be displaced in a predetermined orbit. However, the root vegetable harvester 1 is not limited to such a configuration. For example, the second position changing portion 7 is provided with a guide mechanism for guiding the second raising portion 4, and the second raising portion 4 is guided by the guiding mechanism to be predetermined with respect to the first raising portion 3. It may be configured to be displaced in the orbit of.

(6) Further, in the root vegetable harvester 1 according to the above embodiment, the first raising unit 3 and the second raising unit 4 are configured to operate by transmitting the drive of one drive source 1a. However, the root vegetable harvester 1 is not limited to such a configuration.

For example, a plurality of drive sources are provided, the first raising unit 3 is transmitted the drive of the first drive source and operates, and the second raising unit 4 is transmitted the drive of the second drive source. , It may be configured to operate. According to such a configuration, for example, the second driving source is directly connected to the second upper rotating body 4d of the second raising portion 4, so that the second raising portion 4 is first raised. It is also possible to configure the unit 3 so that it can be displaced in a free orbit.

(7) Further, in the root vegetable harvester 1 according to the above embodiment, the first operation unit 1i and the second operation unit 1j are arranged in parallel above the first raising unit 3, respectively. However, the root vegetable harvester 1 is not limited to such a configuration. For example, the first operation unit 1i and the second operation unit 1j may be arranged apart from each other.

(8) Further, in the root vegetable harvester 1 according to the above embodiment, the maximum distance W4 at which the second raising portion 4 can be displaced in the vertical direction D3 with respect to the first raising portion 3 and the conveying portion 2 is the first raising portion. The structure is such that the portion 3 and the second raising portion 4 are larger than the maximum distance W3 that can be displaced in the vertical direction D3 with respect to the transport portion 2. However, the root vegetable harvester 1 is not limited to such a configuration. For example, the maximum distance W4 in which the second raising portion 4 can be displaced in the vertical direction D3 with respect to the first raising portion 3 and the conveying portion 2 is such that the first raising portion 3 and the second raising portion 4 with respect to the conveying portion 2. It may be configured to be smaller than the maximum distance W3 that can be displaced in the vertical direction D3.

1 ... Root vegetable harvester, 1a ... Drive source, 1b ... Cutting part, 1c ... Carrying part, 1d ... Discharge part, 1e ... Container stand, 1f ... 1st seat, 1g ... 2nd seat, 1h ... Crawler, 1i ... No. 1 operation unit, 1j ... second operation unit, 2 ... transfer unit, 2a ... transfer belt, 2b ... front rotating body, 2c ... rear rotating body, 2d ... intermediate rotating body, 3 ... first raising unit, 3a ... first Belt, 3b ... projecting part, 3c ... first cover body, 3d ... first upper rotating body, 3e ... first lower rotating body, 3f ... guided part, 3g ... intermediate rotating body, 3h ... connection mechanism, 4 ... 2 Raising part, 4a ... 2nd belt, 4b ... Protruding part, 4c ... 2nd cover body, 4d ... 2nd upper rotating body, 4e ... 2nd lower rotating body, 4f ... Connection mechanism, 5 ... Drive part, 6 ... 1st position change part, 6a ... 1st male thread part, 6b ... 1st connection link, 7 ... 2nd position change part, 7a ... 2nd female thread part, 7b ... 2nd male thread part, 7c ... 2nd connection link, 7d ... Link, 7e ... 1st end, 7f ... 2nd end, 8 ... Excavation, 8a ... Blade, 8b ... Moving part, 10 ... Machine, 10a ... 1st female screw part, 10b ... Guide part, 10c ... transport cover body, 10d ... first support part, 10e ... second support part, 10f ... frame, 51 ... main rotating body, 52 ... belt, 53 ... first rotating shaft, 54 ... first transmission part, 54a ... first 1 gear mechanism, 54b ... first transmission shaft, 55 ... second transmission unit, 55a ... second gear mechanism, 55b ... second transmission shaft, 55c ... first rotating body, 55d ... second rotating body, 55e ... transmission member , 55f ... 2nd rotating shaft, 55g ... gear mechanism, 55h ... transmission shaft, 55i ... gear mechanism, 56 ... housing, 57 ... bearing, 58 ... main rotating shaft, 59 ... main gear mechanism, X1 ... root vegetable, X2 ... Ridge

Claims (5)

It is a root vegetable harvester that runs forward when harvesting root vegetables.
A transport unit that transports root vegetables backwards with the root vegetables foliage sandwiched between them.
It has a first belt that rotates endlessly along a surface that intersects the front-back direction, and a protrusion that protrudes from the first belt in order to cause the foliage of the root vegetable, and is arranged in front of the transport portion. 1st raising part and
It has a second belt that rotates endlessly along a plane parallel to the front-back direction, and a protruding portion that protrudes from the second belt in order to cause the foliage of the root vegetable, and is arranged in front of the transport portion. 2nd raising part and
A first position changing part for changing the vertical position of the first raising part with respect to the conveying part, and a first position changing part.
A second position changing portion that changes the vertical position of the second raising portion with respect to the conveying portion and the first raising portion, and a second position changing portion.
The first raising portion and the driving unit for operating the second raising portion are provided.
The drive unit includes a rotating rotating shaft, a first transmission unit that transmits the rotational force of the rotating shaft to the first raising unit, and a second transmission unit that transmits the rotational force of the rotating shaft to the second raising unit. With a department,
The second position changing section is a root vegetable harvester that rotates the second transmitting section around the rotation axis when changing the vertical position of the second raising section with respect to the first raising section. The root vegetable harvester according to claim 1, wherein the first position changing portion integrates the first raising portion and the second raising portion and displaces the first raising portion in the vertical direction with respect to the conveying portion. The maximum distance that the second raising portion can be displaced in the vertical direction with respect to the first raising portion and the conveying portion is such that the first raising portion and the second raising portion can be displaced in the vertical direction with respect to the conveying portion. The root vegetable harvester according to claim 2, which is larger than the maximum distance. The second position changing part includes a plurality of links and has a plurality of links.
The first end of each of the plurality of links is rotatably connected to the first raising portion, and the second end of each of the plurality of links is rotatably connected to the second raising portion. , The root vegetable harvester according to any one of claims 1 to 3. The first operation unit to be operated when the position of the first raising unit is changed by the first position change unit, and
A second operation unit that is operated when the position of the second raising unit is changed by the second position changing unit is provided.
The root vegetable harvester according to any one of claims 1 to 4, wherein the first operation unit and the second operation unit are arranged in parallel above the first raising unit, respectively.

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