JP2000316352A - Welsh onion harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a Welsh onion harvester which can improve the flow of Welsh onions that are dug from a field with a digging blade and are carried with a conveyer and can efficiently remove soil adhered to the root portions of the Welsh onions. SOLUTION: This Welsh onion harvester has a digging and carrying conveyer device 8 which is disposed behind a digging blade 6 and is used for loading and carrying the root portions of the drug Welsh onions dug with the digging blade in a vertical posture, and a nipping and carrying belt 9 which is placed above the digging and carrying conveyor device 8 and is used for nipping and carrying the foliage portions of the Welsh onions dug from the field in the vertical posture, on a self-propelled frame. Therein, in the digging and carrying conveyor device 8, the width of a support frame 8c for supporting the digging blade 6 and an endless carrying conveyor 7 disposed behind the digging blade 6 is enlarged in comparison with the widths of the digging blade 6 and the endless carrying conveyer 7. The rear end portion of the support frame 8c is pivotally supported in a state vertical rotatably on the basis of the frame, and a pair of right and left link arms 12 for supporting the nipping and carrying belt 9 is disposed at positions near to the pivotally supporting position.

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 improving the flow of green onions excavated from a field by a digging blade and conveyed by a conveyor. The present invention relates to an improvement of a support frame for efficiently removing soil adhering to a support frame.

[0002]

2. Description of the Related Art A self-propelled body equipped with a pair of right and left crawlers has a digging blade at the tip, which extends 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 that places the root of the green onion dug up by the digging blade in a vertical position and transports it while lifting, and is located above the digging / transporting conveyor device, from the field. 2. Description of the Related Art A green onion harvesting machine has been proposed, which has a nipping and conveying belt for nipping and transporting a dug-out leek foliage in a vertical position.

[0003]

In the conventional digging / transporting conveyor apparatus described above, the digging blade and the conveyor provided continuously therefrom are almost equal in width, and the digging blade and the conveyor are supported. The width of the frame was also approximately equal to the width of the digging blade and conveyor. For this reason, there has been a problem that the flow of green onions conveyed by the conveyor is deteriorated by the left and right support frames (side walls) of the conveyor, and the fall of the soil adhering to the root is hindered. Further, since a pair of left and right link arms for supporting the nipping and conveying belt is provided near the base of the support frame,
Similar to the above, there is a problem that the flow of the green onion conveyed by the conveyor is deteriorated and the fall of the soil attached to the root of the green onion is hindered.

Accordingly, the present invention is to improve the pivotal position of the link frame supporting the support frame and the nipping / conveying belt of the above-mentioned conventional onion harvester, to improve the flow of the onion conveyed by the conveyor, and to improve the root of the onion. An object of the present invention is to provide a green onion harvester that makes it easy to drop soil adhering to a soil.

[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 roots of dug-up onions in a vertical position and transports them while lifting them, and a green onion digged from a field located above the digging / transporting conveyor device A leek harvester having a nipping and conveying belt for nipping and transporting the foliage portion in a vertical position, the excavating / transporting conveyor device supports, from behind, an excavating blade and an endless transporting conveyor provided subsequently thereto. The width of the support frame is wider than the width of the excavating blade and the endless conveyor.

B. A rear end portion of the support frame is pivotally supported so as to be vertically rotatable with respect to the body, and a pair of left and right link arms for supporting the nipping and conveying belt are provided near the pivot position.

[0008]

By adopting such a configuration, the onion harvester of the present invention performs the following operations.

[0009] The above A. By making the width of the support frame that supports the digging blade and the endless transport conveyor from the rear wider than the width of the digging blade and the endless transport conveyor, the flow of the green onions conveyed by the conveyor is improved. The fall of the soil adhering to the root of the soil becomes good.

[0010] B. above. By providing a pair of left and right link arms that support the nipping and conveying belt near the position where the rear end of the support frame is pivotally supported, the link arm and its pivotal support flow the green onion conveyed by the conveyor. And does not inhibit the fall of soil adhering to the roots of green onions.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be specifically described below with reference to the accompanying drawings. 3 to 8, reference numeral 1 denotes a green onion harvester, and a body 2 is equipped with crawlers 3, 3 forming a pair of right and left and capable of spinning (super-spot). 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 crawlers 3, 3 are driven by driving wheels 3a by driving wheels 3a at a rear portion of the body 2 in the forward direction, and run. 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 center lower part 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 green onion roots dug by the digging blade 6 while placing the roots in a vertical position and lifting them is provided. This excavation
A pair of left and right sandwiching 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 position the foliage of green onions dug from a field. 9 are provided.

A 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 vertically rotatable via a shaft 8a. ing. Further, 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 digging / transporting conveyor device 8 is configured to rotate upward about a shaft 8a.

As shown in FIGS. 1 and 2, the digging / transporting conveyor device 8 adjusts the width of the support frame 8c for supporting the digging blade 6 and the endless bar conveyor 7 from behind. And the width is greater than the width of the endless bar conveyor 7. The rear end of the support frame 8c is pivotally supported by the shaft 8a so as to be vertically rotatable with respect to the body, and near the shaft 8a,
A pair of left and right link arms 12 that support the nipping and conveying belt 9 are provided. Behind the endless bar conveyor 7,
A soil drop opening 7a for dropping soil attached to the root of the green onion conveyed by the excavating / transporting conveyor device 8 and the sandwiching / conveying belt 9 is open.

The left and right opposing surfaces of the holding and conveying belt 9 are pressurized by a large number of pressing rollers 9a, 9a,..., And are conveyed while holding the foliage of the green onion without being damaged. The front end of the nipping and conveying belt 9 is pivotally supported by the distal end of the link arm 12, and the rear end of the belt
It is pivotally supported by a distal end of a link arm 13 which also serves as a transmission case pivotally mounted on the side. When the base of the excavating / transporting conveyor device 8 rotates and moves upward, the link arms 12 and 13 interlock with the nipping / conveying belt 9 to move in conjunction therewith.
Also move backwards. On the lower side of the excavating / transporting conveyor device 8 is supported a dumping rotor 14 for dropping green onion soil. Behind the dumping rotor 14,
An earth removal drum 15 is provided for cutting the root of the green onion and removing the soil.

The 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 onion nipped and conveyed by the nipping and conveying belt 9 at the start end thereof, and conveys it in the vertical posture while ending in the twisted state (almost 45 degrees). Work table 1
7 is discharged. Second nipping transport belt 16
A leaf transport belt 16a that supports and transports the leaves of the green onion that is nipped and transported by the second nipping transport belt 16 is provided at the end of the second nipping transport belt 16. And coaxially.

The work table 17 is provided with a second nipping and conveying belt 16.
Is formed below the end of the body 2 and has a rectangular plate shape that is long in the longitudinal direction of the body 2 and is inclined so that the worker side is lower and the opposite side is higher. The work table 17 is rotatable upward about a fulcrum 17a on the rear end side. In this work table 17, the operator prepares, ties, or packs the green onion discharged from the end portion of the second nipping / conveying belt 16, and works on the tied or bagged green onion bundle. Stand 17
The container is placed in a container (not shown) placed at the end of the container, or is stored in the container 18 in a predetermined amount. The leek bundle prepared on the worktable 17 is
The work table 17 is moved to and mounted on a detachable storage table 18 provided behind the work table 17.

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, an auxiliary step 22a and the like are provided. An operator steps on the step 22 for the operator, and the seat 21 has a supporting arm 21a so that the operator sitting on the seat 21 can work.
It is freely rotatable so that the operator (operator) can go to the control section 19 or the work table 17. The seat 21 is
The structure is such that the operator (operator) can work up and down so as to work while sitting or standing.

From the left and right frames of the excavating and conveying conveyor device 8, a pair of left and right support arms 2
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 tips of the support arms 23, 23 so as to face each other. The wheels 24, 24 are provided by a digging / transporting conveyor device 8.
In addition to the up and down adjustment, it also functions as a ridge follower that follows the machine body along the length direction of the harvested green onion ridge. It is supported so as to be capable of horizontal movement adjustment by a left and right movement adjustment mechanism 24a. 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. A ridge breaking disk 26 for breaking the shoulder of the harvesting ridge is supported by the support arm 23 between the wheel 24 and the tip of the excavating / transporting conveyor device 8, and is adjusted vertically and horizontally by a vertically adjustable mechanism 26a. It is provided as possible.

The transmission 5 which receives power from the engine 4 and shifts is provided with a hydraulic continuously variable 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 harvesting green onions from the field, the crawlers 3, 3 are positioned between the ridges of the target onion ridge, and the grounding wheels 24, 24 are rolled and contacted with the inclined shoulders of the onion ridge, so that the digging and transporting conveyor device 8 The digging blade 6 is moved up and down by the vertical adjusting cylinder 25 to adjust the digging depth, the ridge is broken by the ridge breaking disk 26 by the advance of the fuselage, and the green onion is digged by the digging blade 6 from below along with the ridge soil. The root is placed on the bar conveyor 7 and the soil adhered to the rhizome is conveyed obliquely upward while falling. Simultaneously with this transport, the foliage of the green onion is nipped by the nipping transport belt 9 and transported without damage. When the ridges on which the crawlers 3 and 3 run are inclined left and right, one of the crawlers 3 and 3 is adjusted up and down to keep the machine body in a horizontal state and run.

When the green onion conveyed in the vertical position by the bar conveyor 7 and the sandwiching conveying 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. As the green onions move further, the roots at the roots are cut off by the soil drop drum 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 foliage conveying belt 16a. The sheet is discharged to the workbench 17 in a lateral posture at the end of the nipping and conveying belt 16.

The green onions discharged onto the workbench 17 are prepared by an operator standing on the operator's step 22 or an operator (operator) sitting on the seat 21 (or standing on the seat 21). Or unite or bag. The bundle of green onions tied or packed in a bag is moved to the accommodation table 18 by being moved to the rear of the work table 17 by being gathered substantially in a predetermined amount or being accommodated in a container and placed there.

Here, the green onion harvester 1 comprises the crawlers 3 and 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 spinning (super turning), and the excavating / transporting conveyor device 8, the nipping and conveying belt 9, the second nipping and conveying belt 16, and the leaf part conveying belt 16 a are operated by the hydraulic cylinder 11. , And the grounding wheel 24, the ridge breaking disk 26, etc. are rotated upward to shorten the total length of the fuselage 2, stably spin on a headland or the like, and move to the next harvest ridge in one rotation. it can.

Further, in front of the digging / transporting conveyor device 8, there are provided grounding wheels 24, 24 which follow the body along the length direction of the harvested green onion ridges. On the other hand, both wheels 24 automatically follow the onion ridges to be harvested, so that the aircraft can be automatically steered, since they are supported so that they can be adjusted up and down by the up and down adjustment cylinder 25 and left and right by the left and right movement adjustment mechanism 24a. The automatic digging / transporting is performed by the digging / transporting conveyor device 8, the nipping transport belt 9, and the second nipping transport belt 16. Therefore, the pilot can spend most of the time on the preparation, bundling, and bagging operations except for the operation of steering the body at the ridge end of the target onion ridge.

[0027]

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

[0028] The digging / transporting conveyor device has a width of the support frame for supporting the digging blade and the endless conveying conveyor provided subsequently from the rear, which is wider than the width of the digging blade and the endless conveying conveyor. The conveyed green onion does not come into strong contact with the support frame, the flow of the green onion is improved, and the soil attached to the root of the green onion can be satisfactorily dropped.

[0029] The rear end of the support frame is pivotally supported so as to be vertically rotatable with respect to the body, and a pair of left and right link arms for supporting the nipping and conveying belt are provided near the pivot position. Does not obstruct the flow of green onions conveyed by the conveyor. Also, it does not hinder the fall of the soil attached to the root of the green onion.

[Brief description of the drawings]

FIG. 1 is a plan view of a digging / transporting conveyor device according to the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is an overall side view of the onion harvester according to the present invention.

FIG. 4 is a plan view of the same.

FIG. 5 is a front view of the same.

FIG. 6 is a side view from the opposite side of FIG. 3;

FIG. 7 is a side view of the work table removed from FIG. 6 and the work table is rotated rearward;

FIG. 8 is an overall rear view of the green onion harvester.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 green onion harvester 2 body 3 crawler 3a drive wheel 3b crawler track 3c grounding wheel 3d wheel frame 3e link member 3
f Cylinder mechanism 4 Engine 5 Transmission 6 Digging blade 7 Endless bar conveyor 7a Soil drop opening 8 Digging / transporting conveyor device 8a Shaft 8b Bracket 8c Support frame 9 Nipping transport belt 9a Pressure roller 10 Support frame 11 Hydraulic cylinders 12,13 Link arm 14 Earth removal rotor 15 Root removal and earth removal drum 16 Second sandwiching conveyance belt 16a Leaf conveyance belt 17 Work table 17a Support point 18 Storage table 19 Operating section 20 Step for operator 21 Seat 21a Support arm 22 Work Step 22a auxiliary step 23 wheel support arm 24 grounding wheel 24a right and left movement adjustment mechanism 25 vertical adjustment cylinder 26 ridge breaking disk 26a vertical and left and right movement adjustment mechanism

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Minoru Oda 684 Nakane, Okayama City, Okayama Prefecture Kobashi Kogyo Co., Ltd. F-term (reference) 2B075 AA10 GA01 GA05

Claims (2)

[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 root of the green onion dug up by the digging blade in a vertical position and transports it while lifting, and is located above the digging / transporting conveyor device, from the field. In a leek harvesting machine having a nipping and conveying belt for nipping and transporting the foliage of dug up onion in a vertical position, the excavating / transporting conveyor device includes a dug blade and an endless transport conveyor provided subsequently thereto. A width of a support frame that supports the back from above is wider than widths of a digging blade and an endless conveyor. 2. A pair of left and right link arms for supporting the nipping and conveying belt are provided near a pivotal position of a rear end of the support frame so as to be vertically rotatable with respect to the body. The green onion harvester according to claim 1.