JPH11206213A - Welsh onion harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a self traveling Welsh onion harvester capable of removing a soil attached to the root part thereof, and unnecessary roots and leaves, and housing in a container. SOLUTION: This Welsh onion harvester is equipped with a second nip holding conveyer belt 16 for discharging the onion by changing from a vertical posture to a horizontal posture following the final end of the conveyance of a nip holding conveyer belt 9, a roots and leaves cutting device 11 cutting for removing unnecessary roots and leaves while conveying the onion discharged from the second nip holding conveyer belt 16 in the horizontal posture to the rear direction, and a container stand 18 for loading a container for housing the onion from which the roots and leaves are removed. The left and right crawler devices 3 are made as capable of independently being adjustable for transferring up and down. The beginning end part of the second nip holding conveyer belt 16 is installed at the lower side of the final end part of the nip holding conveyer belt 6 as continued. The final end part of the second nip holding conveyer belt 16 is arranged as a twisted state so as to discharge the onion conveyed in the vertical posture so far, in a horizontal posture on to the roots and leaves cutting device 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled green onion harvester, and more particularly, to a green onion such as a white onion (root deep green onion) planted in a ridge in a field and transporting the green onion. The present invention relates to a green onion harvester that continuously performs a series of harvesting operations for storing prepared green onions in a container.

[0002]

2. Description of the Related Art A self-propelled fuselage having a pair of right and left crawlers has a digging blade at a tip thereof from the lower front of the fuselage to the rear of the fuselage through the lower center of the fuselage. A digging / transporting conveyor device having an endless bar conveyor that places the root of the green onion dug by the digging blade in a vertical position and transports it while lifting it, and is located above the digging / transporting conveyor device. A pair of left and right sandwiching and conveying belts longer than the above-mentioned excavating and carrying conveyor device for sandwiching and transporting the foliage of green onions dug out of the field in a vertical position, and sandwiching the excavating and carrying conveyor device. A soil removal rotor, which is provided between the conveyor belt and removes soil from the root of the green onion conveyed by the nipping conveyor belt, and a beard rooting rotor for removing a beard root from the root of the conveyed green onion;
A stock conveyor that is provided subsequent to the nipping and conveying belt, receives the green onion in a horizontal position from a transfer end of the nipping and conveying belt by a transfer conveyor, and intermittently rotates and conveys the stock conveyor.
A green onion harvesting machine provided behind the stock conveyor and provided with a stock container for storing green onions conveyed by the stock conveyor, and a container table on which the stock container is placed is disclosed in 9-6438
No. 9 proposes.

[0003]

In the above-mentioned prior art onion harvesting machine, a green onion such as a white onion (root deep onion) planted in a row in a field is dug out and prepared while transporting it. Thus, a series of harvesting operations for storing prepared green onions can be continuously performed. However, the left and right crawler devices, if the running groove of the green onion cultivation field is inclined left and right, will travel with the aircraft in an inclined state, deteriorating the onion digging performance, subsequent transportation, There was a problem that the preparation performance was deteriorated. In addition, since the preparation device does not have a function to remove unnecessary roots and leaves of green onions, it is necessary to harvest with unnecessary roots and leaves attached, and it is necessary to separately remove these after harvesting. There were also points.

Accordingly, the present invention is a further improvement of the above-mentioned prior art onion harvester, in which the left and right crawler devices can be moved up and down, and even if the traveling path of the field is inclined left and right, the crawler device can be moved up and down. Adjust the movement and run the machine in a horizontal state, improve the digging performance of green onions, improve the subsequent transportation and preparation performance, and cut off unnecessary roots and leaves of green onions, after harvesting these unnecessary onions It is an object of the present invention to provide a green onion harvester that does not need to remove roots and leaves.

[0005]

In order to achieve this object, a green onion harvester according to the present invention has the following configuration.

A. A self-propelled fuselage equipped with a pair of left and right crawler devices, from the front of the lower part of the fuselage to the rear of the fuselage through the lower part of the fuselage, has a digging blade at the tip, continuous with this digging blade A digging / transporting conveyor device that places the root of a dug onion in a vertical position and transports it while lifting it, and a green onion digged from a field located above the digging / transporting conveyor device And a conveyer belt for pinching and transporting the foliage of the onion in a vertical position, and provided between the excavating / transporting conveyor device and the conveyer belt. In a leek harvesting machine having a dropping device and a dropping device, the leek conveyed by the nipping and conveying belt is successively transferred following the conveying end portion of the nipping and conveying belt, and is converted from a vertical position to a horizontal position and discharged. The second nipping transport And a root and leaf cutter provided below the end portion of the second nipping and conveying belt to remove unnecessary roots and leaves while transporting the green onion discharged from the second nipping and conveying belt rearward in a lateral position. An apparatus, and a container table on which a container accommodating a green onion discharged from the root cutting device is placed.

B. The right and left crawler devices are configured to drive a crawler belt by driving wheels at a rear portion of the fuselage in the forward direction, and to drive the crawler belt, and to press the crawler belt to a ground contact side to support a plurality of ground contact rolling wheels. Is supported by the pair of front and rear link members so as to be vertically movable with respect to the body frame, and an extendable cylinder mechanism is provided between the wheel frame and the body frame, and a ground contact portion of the crawler belt is provided by expansion and contraction of the cylinder mechanism. It can be moved up and down around the drive wheels.

C. The starting end of the second nipping and conveying belt is provided continuously below the end of the nipping and conveying belt.

D. The end portion of the second nipping and conveying belt was arranged in a twisted state so that the green onion, which had been conveyed in a vertical position, was discharged to the root and leaf cutting device in a horizontal position.

[0010]

By using such means, the onion harvester of the present invention performs the following operations.

[0011] A second nipping / conveying belt that continuously transfers the green onion conveyed by the nipping / conveying belt, converts the vertical posture into a lateral posture, and discharges the green onion, following the conveyance end portion of the nipping / conveying belt; A root-leaf cutting device provided below the end of the conveyor belt to cut off unnecessary roots and leaves while transporting the green onions discharged from the second nipping and conveying belt backward in a lateral posture; And a container base for placing a container for accommodating green onions discharged from the plant, even if a large amount of sediment adheres to the root of the dug green onion, this is dropped by a soil removal device, Also,
Unnecessary roots and leaves are cut off from the green onion discharged from the second nipping and conveying belt and conveyed in a lateral posture by a root and leaf cutting device, and stored in a container.

[0012] The left and right crawler devices drive the crawler belt by driving wheels at the rear of the fuselage in the forward direction, and run.
A rolling wheel frame supporting a plurality of grounding wheels that roll and contact by pressing the crawler belt toward the ground side is supported by the pair of front and rear link members so as to be vertically movable with respect to the body frame, and An extendable cylinder mechanism is provided between the machine frame and the cylinder mechanism, and the extension and contraction of the cylinder mechanism allows the ground contact portion of the crawler belt to move up and down around the drive wheels, so that the traveling path of the field is inclined left and right. Adjust the crawler device up and down to run the aircraft in a horizontal state,
Improve the digging performance of green onions, and improve the subsequent transport and preparation performance.

[0013] That the starting end of the second nipping and conveying belt is provided continuously below the end of the nipping and conveying belt,
The green onions conveyed by the nipping and conveying belt are smoothly carried over to the second nipping and conveying belt, and unnecessary roots and leaves of the green onions are efficiently cut off by the root cutting device.

[0014] By arranging the end portion of the second nipping and conveying belt in a twisted state so that the onion, which has been conveyed in the vertical position, is discharged in the horizontal position to the root cutting device, the nipping and conveying belt is used. The green onion conveyed in the vertical position is smoothly converted to the horizontal position at the end of the second nipping and conveying belt, and is discharged onto the root cutting device.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be specifically described below with reference to the accompanying drawings. 1 to 6, reference numeral 1 denotes a green onion harvester, and an airframe 2 is equipped with crawlers 3 and 3 which form a pair of right and left and enable spin (super-spot) turning. The engine 4 is mounted on one side and slightly behind the body 2, and a hydraulic device (not shown) driven by the engine 4 is mounted near the engine 4. Between crawlers 3 and 3,
A transmission 5 is provided at a lower position near the rear of the body 2 to drive the crawlers 3 and 3 at a variable speed.

The crawler 3 is driven by a driving wheel 3a at a rear portion of the body 2 in the forward direction to drive the crawler belt 3b, and the crawler belt 3b is pressed against the grounding side to make a plurality of grounding contacts. A wheel frame 3d that supports the wheel 3c is vertically movably supported by a pair of front and rear link members 3e with respect to the frame of the body 2 and is extendable between the wheel frame 3d and the frame of the body 2. A cylinder mechanism 3f is provided so that the ground contact portion of the crawler belt 3b can be moved up and down around the drive wheel 3a by expansion and contraction of the cylinder mechanism 3f.

A digging blade 6 is provided at the tip from the lower front of the fuselage 2 between the crawlers 3 and 3 to the rear of the fuselage 2 through the lower center of the fuselage 2, and the digging blade 6 is continuously connected to the digging blade 6. A digging / transporting conveyor device 8 having an endless bar conveyor 7 for transporting the roots of the green onions dug by the digging blade 6 while placing the roots in a vertical position and lifting them is provided obliquely. This excavation
A pair of left and right holding and conveying belts, which are longer than the excavating and conveying conveyor device 8 and are located above the conveying conveyor device 8 and pinch and transport in a vertical posture the foliage of green onions dug from a field. 9 are provided.

The base end of the excavating / transporting conveyor device 8 is pivotally supported by a support frame 10 projecting forward from the machine body 2 so as to be rotatable in a vertical direction via a shaft 8a. ing. A bracket 8b is provided below the rear portion of the frame of the excavating / transporting conveyor device 8, and a hydraulic cylinder 11 is interposed between the bracket 8b and the machine body 2. The excavating / transporting conveyor device 8 is configured to rotate upward around a shaft 8a.

The left and right opposing surfaces of the holding and conveying belt 9 are pressurized by a large number of pressurizing rollers 9a, 9a,..., So that the onion foliage is pinched and conveyed without being damaged. The front end of the nipping and conveying belt 9 is pivotally supported by the distal end of a link arm 12 whose base end is pivotally attached to the frame of the digging / transporting conveyor device 8, and the rear end of the holding and conveying belt 9 has the base end toward the machine body 2. Link arm 1 that doubles as a power transmission case
3 is pivotally supported. When the base of the excavating / transporting conveyor device 8 rotates and moves upward, the nipping / conveying belt 9 is also moved rearward by the link arms 12 and 13 in conjunction with this. A dropping rotor 14 for dropping soil from the root of the green onion is attached to the link arm 12 via a supporting arm 14a, and the root of the root of the green onion is cut off behind the rotor 14 for removing the soil. ,
A root cutting / soil removing device 15 for removing soil is provided.

A starting end of the second nipping and conveying belt 16 is provided continuously below the end of the nipping and conveying belt 9. The second nipping and conveying belt 16 transfers the foliage of the green onions nipped and conveyed by the nipping and conveying belt 7 at the start end thereof, and sequentially conveys it in the vertical posture while sequentially obliquely moving the end portion in the twisted state. And discharged onto the root-leaf cutting device 17. On the side of the second nipping and conveying belt 16, a green onion leaf conveying device 16a that supports and feeds the green onion leaves to be nipped and conveyed by the second nipping and conveying belt 16 is provided.
It is provided coaxially with the second nipping and conveying belt 16.

The root-leaf cutting device 17 is provided below the terminal end of the second nipping and conveying belt 16, rotates in directions opposite to each other with the peripheral surfaces facing each other, and spirally meshes with the peripheral surface. A pair of large and small feed rollers 17a and 17b having different diameters and having a horizontal feed action with the roots of the green onions facing the opposite portions with unevenness formed thereon and the foliage of green onions are placed on the pair of green onions. A conveyor 17c for transporting the feed rollers 17a, 17b in the feed direction in synchronization with the feed speeds of the feed rollers 17a, 17b, and a conveyer 17c provided above the end of the feed of the conveyor 17c.
Belts 17d, 17d that are pinched and transported between
And a root cutting blade 17e provided at the transport end of the pair of feed rollers 17a and 17b to cut the unnecessary root of the green onion at a predetermined position and a leaf cutting blade for cutting the unnecessary green onion at a predetermined position. 17f.

The green onion discharged by cutting off unnecessary roots and leaves by the root cutting device 17 is housed in a container (not shown) at the discharge position, and the container is placed. A container table 18 is provided detachably with respect to the body 2. A space for placing an empty container is provided at the rear of the container table 18.

On the side of the body 2 opposite to the engine 4, a control section 19, a step 20 for a driver, a seat 21, a step 22 for an operator and the like are provided. Of these, the preparation step can be performed by the operator on the step 22 for the operator, but the seat 21 is moved toward the control section 19 or the root cutting so that the operator sitting on the seat 21 can also perform the operation. It is configured to be pivotable toward the device 17.

A pair of left and right wheel support arms 23, 23 project forward from the left and right frames of the excavating / transporting conveyor device 8, and the wheel support arms 23, 23
A pair of grounding wheels 24, 24, which are in contact with the inclined shoulders of the target onion ridge, are pivotally supported at the tip of 23 so as to face each other. The wheels 24, 24 function as a ridge follower that follows the machine body along the length direction of the target onion ridge.
Are supported by a vertical adjustment mechanism 25 so as to be vertically adjustable and horizontally movable. Further, the pair of wheels 24, 24 have a camber angle, rotate in contact with the inclined shoulders of the target onion ridge, and steer and move the body following the target onion ridge. ing.

The transmission 5 which receives power from the engine 4 and shifts is provided with a continuously variable hydraulic transmission (HST) (not shown) for continuously changing the speed. And the power transmission via the side clutch and the differential device is connected and disconnected to allow the crawlers 3 and 3 to run steplessly and stepped, and to spin (super turning). I have to. The transmission 5 transmits the shifted power to each rotating unit, and the rotation speed of the transmission can be adjusted steplessly and stepwise.
The excavation work speed can be freely set by combining with the stepless or stepped traveling of.

Next, the operation of the onion harvester 1 of the embodiment configured as described above will be described. Green onion harvester 1
When the green onions are harvested from the field, the crawlers 3 and 3 are positioned between the ridges of the target onion ridges, and the ground wheels 24 and 24 are rolled and contacted with the inclined shoulders of the onion ridges. The excavation blade 6 is vertically moved by the vertical adjustment mechanism 25 to adjust the excavation depth, and the leek is dug up by the excavation blade 6 from below with the ridge by the advance of the fuselage.
The root is placed on the bar conveyor 7 and the soil adhered to the rhizome is dropped and conveyed obliquely upward. At the same time as the transport, the foliage of the green onions is held by the holding transport belt 9
And transported without damage. Crawler 3,
When there is a left and right inclination between the ridges on which the vehicle 3 travels, one of the crawlers 3 and 3 is adjusted up and down to keep the aircraft in a horizontal state and travel.

When the green onion conveyed in the vertical position by the bar conveyor 7 and the holding conveyor belt 9 reaches the end of the bar conveyor 7, the earth removal rotor 14 comes into contact with the rhizome of the green onion and adheres to the rhizome. The soil that has been dropped is dropped. When the green onion moves further, the root at the root is cut by the root cutting / soil removing device 15, and the remaining soil is further removed. Immediately before the green onion is discharged from the end of the nipping and conveying belt 9, the foliage is nipped and transported by the second nipping and conveying belt 16, and the leaves are conveyed by the onion and leaf conveying device 16a. At the end of the nipping and conveying belt 16, it is discharged to a horizontal position at the conveyor 17 c of the root and leaf cutting device 17.

The green onion, which is placed on the conveyor 17c and moves, has a pair of large and small
a and 17b are fed in synchronism with the feed speed of the conveyor 17c, and at the time when the lower end of the root is positioned and the foliage is pressed by the pressing belts 17d and 17d, unnecessary roots of green onions are removed by the root cutting blade 17e. The leaf is cut at a predetermined position, and unnecessary leaves are cut at a predetermined position by the leaf cutting blade 17f. The green onions from which unnecessary roots and leaves have been cut off are fed to the conveyor 17c and the holding belts 17d, 17d.
The container is discharged from the terminal end of d to the container placed on the container table 18 and accommodated therein.

Here, the green onion harvester 1 comprises the crawlers 3, 3
Stepless or stepped variable speed running and stepless or stepped variable speed rotation of each rotating part, it is possible to select an appropriate moving speed and rotational speed according to field conditions and crop conditions, high work accuracy and efficiency Good harvesting work is performed. The crawlers 3 and 3 are capable of spin rotation (super turning), and are driven by a hydraulic cylinder 11 to carry out a digging / transfer conveyor device 8, a nipping / conveying belt 9, a second nipping / conveying belt 16, and a green onion / leaf conveying device 16a. , And the grounding wheel 24 and the like are rotated upward to shorten the overall length of the body 2, stably spin on a headland or the like, and move to the next harvest ridge by one rotation.

Further, in front of the digging / transporting conveyor device 8, grounding wheels 24, 24 are provided along the longitudinal direction of the harvested green onion ridge along with the movement of the machine body. On the other hand, both wheels 24 automatically follow the onion ridge to be harvested, and automatically steer the body, and are supported by the up and down adjustment mechanism 25 so as to be vertically adjustable and horizontally adjustable. Automatic excavation / conveyance is performed by the holding conveyance belt 8, the conveyance conveyance belt 9, and the second conveyance conveyance belt 16. Therefore, the pilot can spend most of the time on the preparation work except for the operation of steering the airframe at the ridge end of the target onion ridge.

[0031]

As described above, according to the onion harvester of the present invention, the following effects can be obtained.

[0032] A second nipping / conveying belt that continuously transfers the green onion conveyed by the nipping / conveying belt, converts the vertical posture into a lateral posture, and discharges the green onion, following the conveyance end portion of the nipping / conveying belt; A root-leaf cutting device provided below the end of the conveyor belt to cut off unnecessary roots and leaves while transporting the green onions discharged from the second nipping and conveying belt backward in a lateral posture; And a container table on which a container for accommodating green onions discharged from the garbage is placed, so that even if a large amount of earth and sand adheres to the roots of the excavated green onions, it is dropped by a soil removal device, , Second
Unnecessary roots and leaves can be cut off from the green onion discharged from the nipping / conveying belt and conveyed in a lateral posture by a root / leaf cutting device and stored in a container. Therefore, unnecessary roots and leaves can be left in the field to improve the efficiency of transportation and preparation work.

[0033] The left and right crawler devices drive the crawler belt by driving wheels at the rear of the fuselage in the forward direction, and run.
A rolling wheel frame supporting a plurality of grounding wheels that roll and contact by pressing the crawler belt toward the ground side is supported by the pair of front and rear link members so as to be vertically movable with respect to the body frame, and An extendable cylinder mechanism is provided between the machine frame and the cylinder mechanism, so that the ground contact portion of the crawler belt can be moved up and down around the drive wheels by the extension and contraction of the cylinder mechanism, so that the traveling path of the field is inclined left and right, Adjust the crawler device up and down to run the aircraft in a horizontal state,
The onion digging performance can be improved, and the subsequent transport and preparation performance can be improved. Also, the straightness of the aircraft has been improved,
The digging depth of green onions is stable, and the harvesting performance can be improved.

[0034] Since the start end of the second nipping and conveying belt is provided continuously below the end of the nipping and conveying belt, the green onion conveyed by the nipping and conveying belt is smoothly carried over to the second nipping and conveying belt. Thus, the root and leaf cutting device can stably and efficiently cut off the unnecessary roots and leaves.

[0035] The end portion of the second nipping / conveying belt is arranged in a twisted state so that the green onion, which has been conveyed in the vertical position, is discharged to the root cutting device in a horizontal position. The green onion conveyed in the posture is smoothly converted to the lateral posture at the end of the second nipping and conveying belt, and is discharged onto the root cutting device,
Unnecessary roots and leaves can be continuously removed.

[Brief description of the drawings]

FIG. 1 is a side view of an entire onion harvester according to the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a front view of the same.

FIG. 4 is a side view of the leek harvester according to the present invention, with a part thereof omitted.

FIG. 5 is a plan view of the same.

FIG. 6 is a rear view of the same.

[Explanation of symbols]

Reference Signs List 1 green onion harvester 2 body 3 crawler 3a drive wheel 3b crawler belt 3c grounding wheel 3d wheel frame 3e link member 3f
Cylinder mechanism 4 Engine 5 Transmission 6 Digging blade 7 Endless bar conveyor 8 Digging / transporting conveyor device 8a Shaft 8b Bracket 9 Nipping / conveying belt 9a Filling roller 10 Support frame 11 Hydraulic cylinder 12, 13 Link arm 14 Earth drop rotor 14a Support arm 15 Root cutting / soil removing device 16 Second holding and conveying belt 16a Green onion leaf conveying device 17 Root and leaf cutting device 17a, 17b Large and small feed rollers 17c Conveyor 17d Holding belt 17e Root cutting blade 17f Leaf cutting blade 18 Container Table 19 Control part 20 Step for operator 21 Seat 22 Step for preparation operator 23 Wheel support arm 24 Grounding wheel 25 Vertical adjustment mechanism

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yasuki Matsuo 684 Nakahane, Okayama City, Okayama Prefecture Inside Kobashi Kogyo Co., Ltd.

Claims (4)

[Claims] 1. A self-propelled body provided with a pair of right and left crawlers has a digging blade at a tip from a lower front part of the fuselage to a rear part of the fuselage through a lower center part of the fuselage. A digging / transporting conveyor device that places the roots of green onions dug by the digging blade in a vertical position and transports them while lifting, and is located above the digging / transporting conveyor device, from the field. A sandwiching and conveying belt that sandwiches and transports the foliage of dug onion in a vertical position, and a green onion that is provided between the excavating and conveying conveyor device and the sandwiching and conveying belt, and is nipped and conveyed by the sandwiching and conveying belt. In a leek harvester having a soil removal device for dropping soil from the root of the onion, following the transport end portion of the nipping and transporting belt, the leek conveyed by the nipping and transporting belt is successively transferred from a vertical position to a horizontal position. No. to convert and discharge , And unnecessary roots and leaves are cut off while transporting the green onions discharged from the second nipping and conveying belt backward in a lateral posture, provided below the end of the second nipping and conveying belt. A green onion harvester comprising: a root cutting device; and a container table on which a container for accommodating green onions discharged from the root cutting device is placed. 2. The crawler device according to claim 1, wherein the left and right crawler devices drive a crawler belt by driving wheels at a rear portion of the fuselage in the forward direction, and drive the crawler belt toward a ground contact side. The supporting wheel frame is vertically movably supported by a pair of front and rear link members with respect to the body frame, and an extendable cylinder mechanism is provided between the wheel frame and the body frame. 2. A green onion harvester according to claim 1, wherein the ground contact portion of the crawler belt can be moved up and down around the drive wheel. 3. The method according to claim 1, further comprising:
2. A green onion harvester according to claim 1, wherein said green onion harvester is provided continuously below a terminal end of said nipping and conveying belt. 4. An end portion of the second nipping and conveying belt,
4. The green onion harvesting machine according to claim 1, wherein the onion harvested in the vertical posture is arranged in a twisted state so as to be discharged to the root cutting device in a horizontal posture.