JPH07327436A - Structure of harvesting part of root vegetable harvester - Google Patents

Abstract

PURPOSE:To provide a harvesting part structure of a root vegetable harvester capable of preventing the intrusion of foreign matters such as soil and weed into the starting end of an endless circulation belt and having high workability. CONSTITUTION:A harvesting transfer apparatus 1 is provided with a pair of right and left endless circulation belts V, V placed opposite to each other in inclined state raising the back side. The leaf of a root vegetable is clamped with the endless circulation belts V,V and the vegetable is pulled out of the soil, lifted and transferred backward. A pair of right and left grass-dividing tools 3 and a soil-cutting blade 4 are placed in front of the starting ends of the endless circulation belts V, V. Each of the grass-dividing tools 3 has a back-lifted inclined face 3a to be thrust between the ground and the stalk of the root vegetable and raise the stalk of the root vegetable according to the movement of the machine body 7. The soil-cutting blade 4 pushes and cuts the soil at the side of the root vegetable in a state thrust into the soil according to the movement of the machine body 7. The soil-cutting blade 4 is positioned under the grass-dividing tool and a gap S is formed between the lower face of the grass-dividing tool and the upper end of the soil-cutting blade 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is provided with a pair of left and right endless swivel belts which are driven to face each other in a rearwardly inclined state. A harvesting transporting device for pulling the root vegetables out of the ground and pulling them upward and transporting them backward is provided. In front of the starting end of the endless rotation band, the roots are inserted between the ground and the foliage of the root vegetables, A pair of left and right weeding tools having a rearwardly inclined surface capable of raising the foliage of the root vegetable as it travels, and a lateral side of the root vegetable as the aircraft travels in a state of plunging into the soil. It relates to the structure of the harvesting part of a root vegetable harvester provided with a soil cutting blade that pushes through the soil.

[0002]

2. Description of the Related Art Conventionally, in the above-mentioned harvesting part structure of a root vegetable harvesting machine, the soil cutting blade 34 has a base end portion thereof largely exposed from the ground, as shown in FIG. It was arranged in a wide space between the rear end portion and the start end portion of the endless rotation band V.

[0003]

According to the above-mentioned conventional structure, the soil cutting blade is arranged in the wide space between the rear end of the weeding tool and the start end of the endless rotation band. , The soil that received the pushing force from the soil cutting blade was liable to swell upward without any resistance, and because the base end was largely exposed from the ground, weeds were entangled directly with the base end. However, weeds or roots of weeds caught on the soil cutting blade in the soil came up to the base end portion of the soil cutting blade, and it was easy to form a weed or a mass of weed roots on the base end portion. As a result, lumps of foreign matter such as swelling soil and weeds entwined with the base end of the soil cutting blade are likely to be caught in the start end of the endless rotation band as the aircraft runs, improving workability. There was room for.

The present invention has been made in view of the above points, and an object thereof is a root vegetable capable of preventing contaminants such as soil and weeds from being bitten into the starting end portion of the endless rotation belt of the harvesting conveying device. It is to provide a harvesting unit structure of a harvester.

[0005]

The characteristic structure of the harvesting part structure of the root vegetable harvesting machine according to the present invention is that the soil cutting blade is arranged below the weeding tool, and the lower surface of the weeding tool and the soil cutting blade are A gap is formed between the upper end.

The soil cutting blade may be arranged in an inclined posture in which the lower end portion is rearward.

[0007]

According to the above construction, since the soil cutting blade is arranged below the weeding tool, even if the soil receives the pushing cutting force from the soil cutting blade and rises, it is pressed by the weeding tool from above. And the excitement is stopped. Furthermore, since a gap is formed between the lower surface of the weeding tool and the upper end of the soil cutting blade, weeds or the like that are entangled directly with the upper end of the soil cutting blade can slip through the gap. Also, even if weeds or the like catch on the soil cutting blade in the soil and rise up to the upper end portion of the soil cutting blade, the weeds or the like can be similarly slipped out from the gap. As a result, it is possible to prevent the formation of weeds and lumps of weeds around the upper end portion, and to prevent the inclusion of foreign matters such as soil and weeds at the start end portion of the endless rotation zone.

Further, in the case where the soil cutting blade is arranged in an inclined posture in which the lower end portion is rearward, the push-cutting force acts downward on the soil, and the soil is easily pushed out. For the reason, it is possible to further suppress the swelling of the soil, and foreign substances such as roots of weeds in the ground caught on the soil cutting blade tend to slide downward and downward as the aircraft runs, so that it can be easily separated from the soil cutting blade. It is possible,
It is possible to more effectively prevent the inclusion of contaminants such as soil and weeds at the beginning of the endless rotation zone.

[0009]

Therefore, since it is possible to prevent foreign matter such as soil and weeds from being caught in the starting end portion of the endless rotation zone, it is possible to provide a harvesting part structure of a root vegetable harvesting machine having good workability.

[0010]

Embodiments of the present invention will now be described with reference to the drawings. As shown in FIG. 1 and FIG. 2, the harvesting section B and the collecting section 9 are arranged on the traveling machine body 7 via the support frame 20 to form a root vegetable harvesting machine. This root vegetable harvesting machine is a pair of left and right driving belts that can be driven and rotated in order to hold the foliage of root vegetables such as carrots and radishes planted in the field, pull them diagonally upward at the rear of the machine, and hang and convey them. A harvesting transport device 1 composed of V (an example of an endless rotation band) is provided on one lateral side of a machine body 7 having a crawler type traveling device 2, and a ground surface is provided in front of a start end portion of the sandwich transport belt V. And a pair of left and right weeding tools 3 having a rearwardly rising slope 3a capable of entering the roots and stems of the root vegetables as the machine body 7 travels, and a state of plunging into the soil In addition, a pair of left and right soil cutting blades 4 for pushing down the soil on the lateral sides of the root vegetables as the machine body 7 travels are provided.

The weeding tool 3 is attached to the tip of the support frame 20 via a first support arm 21A.
The first support arm 21A is arranged laterally of the starting end portion of the nipping and conveying belt V. From the tip of the weeding tool 3, a scooping bar 22 for scooping out impurities is extended forward along the rearwardly rising inclined surface 3a of the weeding tool 3.

The soil cutting blade 4 is formed to have a long length so as to penetrate deeply into the soil near the lower end of the root vegetable, and has a thick wall so as to withstand the push-cutting of the soil when the soil is deeply penetrated. It is formed and attached to the tip of the support frame 20 via the second support arm 21B. The second
The support arm 21B has one end connected to the tip of the support frame 20 and extends forward along the longitudinal direction of the sandwiching and conveying belt V to below the weeding tool 3, and the soil cutting blade 4
Is placed below the weeding tool 3, and is inclined toward the rear toward the lower end side.
It is connected to the tip of the. A gap S is formed between the lower surface of the weeding tool 3 and the upper end of the soil cutting blade 4. Connection part R between the support frame 20 and the second support arm 21B
Is disposed below and behind the starting end of the nip transport belt V.

As described above, since the soil cutting blade 4 is disposed below the weeding tool 3, even if the soil tries to rise due to the pushing force from the soil cutting blade 4, the soil cutting blade 4 is placed on the weeding tool 3 from above. It is suppressed and the excitement is blocked. Furthermore, weeding tool 3
Since a gap S is formed between the lower surface of the soil cutting tool and the upper end portion of the soil cutting blade 4, weeds or the like that tend to be entangled with the upper end portion of the soil cutting blade 4 or the soil cutting blade 4 is caught in the soil. Earth cutting blade 4
It is possible to prevent weeds and other roots of weeds from being formed at the upper end by slipping the weeds and the like rising up to the upper end of the end of the gap S to the start end of the endless rotation zone. It is possible to prevent the inclusion of foreign matter such as soil and weeds.

A raising device 25 is provided on the left and right of the front end of the harvesting section B, and a leaf stem portion can be cut at the root portion of the locking claw 26 of the raising device 25 on the uncut side. A cutter blade 27 is attached so that tangling of root cane foliage, weeds, etc. can be caused when cutting.

As shown in FIG. 7, the harvesting transfer device 1 is used.
One of the left and right holding / conveying belts V in FIG. 1 has its front end portion V1 swingably switchable left and right between a posture along a portion other than the front end portion V1 and a posture opened to the right side. Configured. A lock mechanism (not shown) is provided to lock the front end in both postures. Since the front end portion V1 is swingable to the left and right in this way, even if dirt, pebbles, or the like is sandwiched between the two belts at the starting end portion of the sandwiching and conveying belt V, the one front end portion V1 is By swinging the body so that it is open to the right side, dirt and pebbles can be easily removed. In addition, the belt can be easily attached by adopting this open posture.

As shown in FIG. 3, in the harvesting transfer device 1, a guide roller 1b that presses the left and right sandwiching transfer belts V in an approaching direction is slidable while being urged by a spring 1d against a frame 1c. It is provided on the attached holder 1e, and is structured so as to sandwich the foliage portion strongly on the transport start side and weak on the transport end side.

Then, a leaf cutting device 8 for cutting the foliage of the root vegetables from the harvesting transporting device 1 is provided behind the harvesting transporting device 1 to form the leaf cutting device 8. A drivable alignment transport mechanism 8a acting on the upper end of the suspended root vegetables, and a pair of left and right drivable arms that receive the foliage portion from the alignment transport mechanism 8a in a fixed position above the holding position. A conveying device 8b for cutting which includes a nipping conveying belt and the like, a precession conveying device 8c which includes a pair of left and right drivable nipping conveying belts which act on root vegetables suspended by the conveying device 8b for cutting,
A pair of left and right rotatable rotary cutters for cutting the roots and roots of the root vegetables, which are conveyed by the cutting conveyance device 8b and whose posture is kept constant by the steady rest conveyance device 8c, in a state where the cut ends are aligned at the roots. 8d and 8d are provided.

As shown in FIG. 4, a steady rest transport device 8 is provided.
A thick cushion body 8ca is provided on the front surface side of the sandwiching and conveying belt c
Is attached so that even if the thickness of root vegetables changes significantly, it can be handled. Further, the left and right rotary cutters 8d, 8d are arranged in a wrap manner so as to be vertically opposite to each other so as to surely cut.

As shown in FIG. 3, the alignment transport mechanism 8a.
Then, the holder 8a attached to the left and right turning chains 8aa
The rollers 8ac are attached to the respective b while being urged in the approaching direction by the springs 8ad, and the support shafts of the rollers 8ac are set so as to rotate by the movement of the foliage in the longitudinal direction. Accompanied by root vegetables, roller 8ac
It is configured to rise until it touches.

As shown in FIGS. 5 and 6, expansion between adjacent rollers 8ac in the front and rear at a portion where the rotary chain 8aa extending over the front and rear sprockets 8s, 8u is wound around the front sprocket 8s which is a front wheel. A guide means G is provided to prevent the root leaf portion from entering the gap k formed. The guide means G is composed of a pair of guide bars 15 and 15 made of a pair of cantilevered piano wires which are bolted to a bracket 14 which is erected from the alignment frame 13, and which is located at the outermost diameter of the rotation locus of the roller 8ac. And roller 8ac
It is formed in the shape of an arc located directly below.

Further, on the cylindrical portion 8t attached to the upper side of the front sprocket 8s, rubber-made guide discs 16 and 16 acting on the foliage portion above the roller 8ac are attached. Matching roller 8ac
The guide means G is configured so as to prevent the root and vegetable leaves from entering the expanded gap k between them.

As shown in FIGS. 1 and 2, a collecting section 9 for collecting root vegetables from the leaf cutting apparatus 8 is provided behind the harvesting conveying apparatus 1 and below the leaf cutting conveying apparatus 8 and the collecting section 9 is provided. To form the root vegetables, a small diameter one is placed in the lower container 9a.
There is provided a sorting conveyor 9c for dropping the large diameter one to the rear container 9b, and a chute 9d for guiding root vegetables falling from the leaf cutting device 8 to the sorting conveyor 9c. A pedestal 9e on which an empty container is placed is provided on the left lateral side of the rear part of the machine body so as to be vertically swingable in a horizontal overhanging posture and an upright storage posture.

A foliage portion conveying device 10 including a drivable conveying chain 10a for discharging the cut foliage portion from the leaf cutting device 8 to the outside of the machine body and a nipping rail 10b, and the leaf cutting device 8 to the harvesting conveying device 1 are used. Is arranged in a state where the cut foliage portion is conveyed diagonally across the front part of the machine body on the other side of the machine body on the opposite side, and the boarding operation unit 6 is provided on the other side of the machine body on the side of the collecting unit 9.
A motive power unit 11 is provided, and a container accommodation unit 12 is provided between the recovery unit 9 and the boarding operation unit 6 at the rear of the foliage transport apparatus 10.

In other words, the above-mentioned arrangement makes the weight balance of the entire body good, and the management of the recovery section 9 and the container accommodating section 12 from the boarding operation section 6 can be easily performed in a disposition manner. The transporting device 10 is arranged obliquely so as not to interfere with the management and operation of the boarding operation unit 6 to the collecting unit 9, and the cutting stems and leaves are provided outside the machine body at the front side of the machine body opposite to the harvesting carrier device 1. The crawler traveling device 2 does not step on the foliage portion that has been released and released earlier during the next harvesting run.

The harvesting section B and the sorting conveyor 9c in the collecting section 9 are mounted on the frame 20 by the lifting cylinder 17.
Around the upper fulcrum P, it is configured to be able to swing up and down integrally with the frame. The rear end of the sorting conveyor 9c and the container 9b
However, since the relative position between the harvesting section B and the sorting conveyor 9c does not change, the harvesting operation can be favorably performed as a whole.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the structures of the accompanying drawings by the entry.

[Brief description of drawings]

[Figure 1] Top view of root vegetable harvester

[Figure 2] Side view of root vegetable harvester

FIG. 3 is a view taken along the line AA of FIG.

FIG. 4 is a cross-sectional view showing a conveyance state of a rotary cutter portion.

FIG. 5 is a plan view showing the structure of the starting end portion of the alignment transport mechanism.

FIG. 6 is a front view of the starting end portion of the alignment transport mechanism.

FIG. 7 is a plan view of a nipping and conveying belt.

FIG. 8 is a side view showing a conventional example.

[Explanation of symbols]

 1 Harvesting Conveying Device 3 Weeding Tool 3a Inclined Surface 4 Soil Cutting Blade 7 Aircraft S Gap V Endless Rotating Band

Claims (2)

[Claims] 1. A pair of left and right endless rotation bands (V), (V), which are driven by being arranged opposite to each other in a rearwardly inclined state, are provided.
The endless rotation zone (V), (V) sandwiches the leaf portion of the root vegetable, pulls the root vegetable from the ground, pulls it upward, and conveys it backward to provide a harvesting transportation device (1). In front of the start ends of the zones of motion (V), (V), the space between the ground and the foliage of the root vegetable can be entered to cause the foliage of the root vegetable to be raised as the aircraft (7) runs. Upslope (3
a) a pair of left and right weeding tools (3), and a soil cutting blade (4) for pushing down the soil laterally of the root vegetables as the machine body (7) travels while rushing into the soil. In the harvesting part structure of a root vegetable harvesting machine, the soil cutting blade (4) is arranged below the weeding tool (3), and the lower surface of the weeding tool (3) and the soil cutting blade. (4) A harvesting part structure of a root vegetable harvesting machine in which a gap (S) is formed between the upper end part and the top part. 2. The harvesting part structure of a root vegetable harvesting machine according to claim 1, wherein the soil cutting blade (4) is arranged in an inclined posture in which the lower end side is rearward.