JPH078056A - Structure of harvesting section in rootcrop harvester - Google Patents

Abstract

PURPOSE:To provide the structure designed to ensure smooth rootcrop conveyance through preventing such troubles that a large gap is developed between rollers adjacent to each other in the conveyance direction at the initial end sprocket site of a register conveying mechanism and the stems and leaves of a rootcrop is sandwiched at the gap. CONSTITUTION:In a carrot harvester where a traveling machine body is equipped with a harvesting section, a sorting section and a recovering section, register conveying mechanisms 8a to make the height of carrot heads even are made up from many revolvable rollers 8ac supported in a projectedly energized mode on chains 8aa and relatively arranged so as to hold carrot leaves in between the rollers 8ac, and the gap k between the rollers 8ac in one party of the chains 8aa and the rollers 8ac on the other party thereof are arranged so as to face to each other in a discrepant way to ensure at least one side of stems and leaves to be held by rollers.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a harvesting machine constructed so that root vegetables such as carrots and radish can be extracted and cut into leaves.

[0002]

2. Description of the Related Art Japanese Patent Application No. 3-
In No. 341628, a harvesting transporting device that sandwiches the foliage of root vegetables such as carrots and radish planted in the field and pulls it diagonally upward at the rear of the aircraft and hangs it is provided on one side of the aircraft for harvesting. A leaf cutting device for cutting the roots and leaves of the root vegetables from the carrier device is provided, and a recovery unit for collecting the root vegetables from the leaf cutting device is provided, and the stems and leaves for discharging the cut leaves from the leaf cutting device to the outside of the machine The present applicant has previously proposed a root vegetable harvester provided with a transport device.

[0003]

In the above root vegetable harvesting machine, in order to align the cutting positions of the root vegetables toward the leaf cutting device, a position aligning and conveying mechanism of a roller conveyor structure is provided, and the leaf stem portion is rotated by the rotation of the rollers. By allowing the scooping movement, the root vegetable rises as it is conveyed backward, and finally the root vegetable head is in a contact conveyance state of contacting the roller. However, because of the spring structure that presses the left and right rollers against each other so as to sandwich the foliage, the roller and the chain link that supports it are
In the rotating portion of the chain on the starting end side sprocket, a relatively large gap is formed between the adjacent rollers in the conveying direction, and the foliage portion may be caught in the gap. In that case, the leaf stem is moved up while rubbing against the supporting member of the roller. Due to the resistance, the contact conveyance state cannot be obtained or the leaf stem is cut during the conveyance. An object of the present invention is to avoid the above-mentioned inconvenience as much as possible by devising the structure of the alignment transport mechanism.

[0004]

In order to achieve the above-mentioned object, the present invention clamps a leaf portion of a root vegetable by a pair of left and right front endless rotation belts which are driven to face each other in a rearwardly inclined state. And a pair of left and right rear endless rotation bands and a pair of left and right aligning and conveying mechanisms arranged below the left and right rear endless rotation bands, and a pair of lower parts of the leaves are paired. While transporting the root vegetables sent from the pull-out section rearward by guiding and guiding between the position-adjusting transfer mechanisms, the upper part of the leaf part is nipped and transferred by the drive of a pair of rear endless rotation bands. Each of them is provided with a vertical interval between the pair of rear endless rotation bands and the pair of alignment transport mechanisms.
The rear endless rotary band and the rear endless rotary band of the root vegetable are moved when the rear endless rotary band and the alignment transport mechanism are arranged relatively to each other so that they become wider toward the lower side in the transport direction, and when a downward moving force of a predetermined amount or more acts on the transport root vegetable. The leaf holding force by the pair of rear endless rotation bands is set so that the downward movement from the bottom is allowed, and the alignment transport mechanism is wound around the front and rear wheels. It consists of a swivel band and a large number of swivelable rollers supported by the endless swivel band in a protruding biasing state, and the root leaf portion located between the rollers of the left and right alignment transport mechanism is sandwiched. The left and right endless rotation zones are arranged relative to each other, and the rotation axis direction of the rollers is set to allow vertical movement of the root vegetable leaf part sandwiched by the alignment transport mechanism. Rollers in one endless rotation band A state in which the roller gap portion and the other endless rotary Dotai of faces, and wherein configuration that the right and left of the endless rotating belt each other are relatively arranged in a root vegetable transport direction.

[0005]

In other words, even if the pinching position of the leaf stem is located in the gap between the rollers in one endless rotation band, it is located in the roller part in the other endless rotation band, so one side must be light. It will be sandwiched by the rotating rollers. This reduces the rate of insufficient uphill movement of the leaf stem compared to the case where it is sandwiched in the gap between the rollers on both the left and right as in the past. The inconvenience that the contact conveyance state cannot be obtained or the leaf stem is cut during the conveyance can be suppressed.

[0006]

[Effects of the Invention] Therefore, a root vegetable harvester that mechanizes a series of processes from the extraction of root vegetables from the ground to the front end of post-processing such as a cutter device is used, and the root vegetables handed over to the post-processing are stably placed in a fixed posture / position. It was possible to provide the position alignment transport mechanism for aligning the two in a state where it functions reliably and satisfactorily as much as possible simply by changing the positions of the left and right relative rollers.

[0007]

EXAMPLE A harvesting section B, a sorting section C, and a collecting section 9 are shown in FIGS.
A root vegetable harvester is shown in which and are provided on the traveling body 7. This root vegetable harvesting machine is a pair of left and right driving belts that can be driven and rotated freely in order to sandwich the stems and leaves of root vegetables such as carrots and radishes planted in the field and pull them out diagonally upward at the rear of the machine to transport them. The transfer device 1 for harvesting composed of V etc.
Provided on one lateral side of the machine body having the crawler type traveling device 2,
A pair of left and right weeding tools 3 and a soil cutting blade 4 are provided on the front end side of the harvesting transport device 1 so that the foliage of root vegetables can be raised by the weeding tool 3 and smoothly delivered to the harvesting transport device 1. The soil on both sides of the root vegetables is cut by the soil cutting blade 4 so that the root vegetables can be smoothly pulled out.

In the harvesting carrier device 1, as shown in FIG. 3, guide rollers 1b for pressing the left and right sandwiching carrier belts 1a in the approaching direction are slidably attached to the frame 1c while being urged by springs 1d. It is provided on the holder 1e, and is configured so as to clamp the foliage portion strongly on the transport start side and weak on the transport end side.

A leaf cutting device 8 for cutting the foliage of root vegetables from the harvesting transporting device 1 is provided behind the harvesting transporting device 1 and is suspended by the harvesting transporting device 1 to form the leaf cutting device 8. Driven positionable transfer mechanism 8a acting on the upper end of the rooted vegetables, a pair of left and right driveable pinched transfer received from the position alignment transfer mechanism 8a in a state of nipping at a fixed position above the nipping position A conveying device for cutting (corresponding to a re-holding conveying mechanism) 8b including a belt and the like, and a steady-state conveying device including a pair of left and right drivable sandwich conveying belts that act on root vegetables suspended by the conveying device for cutting 8b 8c, a pair of left and right drives for cutting roots and roots of the root vegetables which are conveyed by the cutting conveyance device 8b and whose posture is made constant by the steady rest conveyance device 8c in a state where the cut ends are aligned at the roots. Rolling freely rotating cutter 8d, 8d
Is 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 so as to be vertically opposite to each other so as to be surely cut.

As shown in FIG. 3, the alignment transport mechanism 8a.
Then, the left and right turning chains (corresponding to endless turning bands) 8aa
A roller 8ac is attached to each holder 8ab attached to the spring 8a.
The roller 8ac is attached in a state of being biased in the approaching direction by d, and the supporting shaft of the roller 8ac is set to rotate by the movement of the foliage in the longitudinal direction. It is configured to rise until it touches.

Then, as shown in FIG. 5, the left and right rotating chains are arranged so that the gap portion k between the adjacent rollers 8ac in one rotating chain 8aa and the roller 8ac in the other rotating chain 8aa face each other. The 8aas are arranged relative to each other with the roller pitch being shifted by exactly half the roller pitch in the root vegetable transfer direction. That is, the rollers 8a that are adjacent to each other in the front-rear direction at the portion where the rotation chain 8aa is wound around the front sprocket 8s.
Even if a root vegetable leaf part may enter the expanded gap k between c, the other is located on the roller 8ac and at least one side is sandwiched by the roller 8ac.

A bracket 8 for supporting the roller 8ac
The ae is provided with a scraper portion 13 formed by a bent upper surface so as to prevent soil, sand, and debris from winding around the roller 8ac and becoming difficult to rotate.

A collecting section 9 for collecting root vegetables from the leaf-cutting device 8 is provided behind the harvesting conveying device 1 and below the leaf-cutting conveying device 8 to form the collecting unit 9 so that the root vegetable has a small diameter. The sorting conveyor 9c for dropping the ones into the lower container 9a and supplying the large diameter one to the rear container 9b, and the sorting conveyor 9 for the root vegetables falling from the leaf cutting device 8
A chute 9d leading to c is provided.

Side view L for mounting the rear container 9b
The character-shaped pedestal 18 is pivotally supported around the lateral fulcrum P on the upper front part,
Moreover, the damper 14 is attached. In other words, when the container 9b is empty, the container 9b is swung upward, and is slowly swung downward as the amount of collected root vegetables increases and becomes heavier so that the root vegetables can be collected without being damaged. is there. Further, depending on the dead point position of the damper 14 with respect to the fulcrum P, the cradle 18 is configured to be kept urged at the lower limit position placed on the machine body, and if the pedestal 18 is slightly rocked and raised, the dead point is set. Beyond that, you will be urged to rise.

A foliage transporting device 10 including a transporting chain 10a for freely discharging the cut foliage from the leaf-cutting device 8 to the outside of the machine body and a nipping rail 10b is 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.

That is, 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 dispositionally 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.

As shown in FIG. 2, raising devices 15 are provided on the left and right of the front end of the harvesting section B, and at the base of the locking claws 16 of the raising device 15 on the uncut side,
A cutter blade 17 capable of cutting the leaf stem portion is attached so that it can be cut when the entanglement of root vegetable leaf stems and weeds is caused.

In the present embodiment, the front end of the sandwiching conveyor belt V of the harvesting conveyor 1 constitutes a front endless rotation zone m, and the rear part of the sandwiching conveyor belt V constitutes a rear endless rotation zone n. ,
Further, the front end portion of the harvesting transport device 1 corresponds to the pull-out portion h, and the transporting device q is configured by the rear portion of the harvesting transport device 1 and the alignment transport mechanism 8a.

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations 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.

[Explanation of symbols]

 8a Positioning / conveying mechanism 8aa Endless rotation band 8ac Roller 8s Front wheel body 8u Rear wheel body k Gap h Extraction part m Front endless rotation band n Rear endless rotation band q Conveyor device

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masaaki Suezuru 64 Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Sakai Factory Co., Ltd.

Claims (1)

[Claims] 1. A pair of left and right front endless rotation bands (m), (m), which are driven to face each other in a rearwardly inclined state, hold a leaf portion of a root vegetable and pull out the root vegetable from the ground. From the pulling-out portion (h) that is pulled up upward, the pair of left and right rear endless rotation bands (n) and (n), and the pair of left and right aligning and conveying mechanisms (8a) and (8a) arranged below this. And the lower part of the leaf part is provided with the pair of alignment transport mechanisms (8a),
While being guided and guided between (8a), the upper part of the leaf part is sandwiched and transferred by the drive of the pair of rear endless rotation bands (n), (n), and is fed from the extraction part (h). A transport device (q) for transporting root vegetables rearward is provided respectively, and a vertical interval between the pair of rear endless rotation bands (n) and (n) and the pair of alignment transport mechanisms (8a) and (8a). But,
When the rear endless rotation band (n) and the alignment transport mechanism (8a) are arranged relatively to each other so that they become wider toward the lower side in the transport direction, and a downward movement force of a predetermined amount or more acts on the transport root vegetables, The leaf gripping force by the pair of rear endless rotation bands (n) and (n) is set so that the downward movement of the root vegetables from the rear endless rotation band (n) is allowed. Align the transport mechanism (8a) with the front and rear wheels (8
s), (8u), and a pair of left and right endless rotation bands (8aa), (8aa) wound around the endless rotation band (8aa). Equipped with a large number of rotatable rollers (8ac), the left and right rollers (8a)
c), (8ac), the left and right endless rotation bands (8aa), (8a) so that the root leaf portion located between them is sandwiched.
a) is arranged to face each other, and the rotation axis direction of the roller (8ac) is set so that the vertical movement of the root and vegetable leaf part sandwiched by the alignment transport mechanisms (8a) and (8a) is allowed. Further, the gap portion (k) between the adjacent rollers (8ac) and (8ac) in the one endless rotation band (8aa) and the roller (8ac) in the other endless rotation band (8aa) face each other. State, the left and right endless rotation bands (8aa), (8aa)
The structure of the harvesting section of the root vegetable harvesting machine, where they are arranged relative to each other in the root vegetable transfer direction.