JP2000316355A - Ridge-breaking device of welsh onion harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dispose a ridge-breaking device for breaking a harvest ridge from its both sides on a self-propelled Welsh onion harvester. SOLUTION: This Welsh onion harvester has a digging and carrying conveyer device which has a digging blade at the tip, is connected to a digging blade and is used for loading, lifting and carrying the root portions of the dug Welsh onions dug with the digging blade in a vertical posture, a nipping and carrying belt which is placed above the digging and carrying conveyer device and is used for nipping and carrying the foliage portions of the Welsh onions dug from the field in the vertical posture, and ground wheels which are pivotally supported at the tips of wheel-supporting arms disposed on both the sides of the nipping and carrying belt and the digging and carrying conveyer device and contact with both the sides of a harvest ridge, on a self-propelled frame. Therein, ridge-breaking devices 26 for breaking a harvest ridge from its both sides are disposed between the tip portions of the nipping and carrying belt 9 and the digging and carrying conveyer device 8 and the ground wheels 24, and the ridge-breaking devices 26 are mounted on the wheel support arms 23, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled leek harvester, and more particularly to a ridge breaking device for breaking a harvest ridge from both sides.

[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 for placing the root of the green onion dug up by the digging blade in a vertical position and transporting it while lifting, and provided above the digging / transporting conveyor device to dig from a field A nipping / conveying belt for nipping and transporting the foliage of the raised green onions in a vertical position, and a tip supported by the nipping / conveying belt and a tip end of a wheel supporting arm provided on both sides of the digging / transporting conveyor device, thereby harvesting. A green onion harvester having a grounding wheel contacting both sides of a ridge has been proposed.

[0003]

In the above-mentioned onion harvesting machine, the grounding wheel travels and moves in contact with both sides of the harvesting ridge during the harvesting operation, and the aircraft is automatically steered.
A green onion can be prepared which is dug up from a field by a digging / transporting conveyor device and conveyed rearward, and which is conveyed while pinching the foliage in a vertical posture by a pinching / conveying belt and discharged onto a worktable. However, the green onions of the cultivation ridges, especially in deep root onions, have a large amount of soil hung on both sides of the roots. There was a problem that the burden was increased and the performance was reduced, and it was necessary to break the cultivation ridge from both sides.

[0004] Accordingly, the present invention is to reduce the amount of soil on both sides of the root of a green onion, which is mounted on the above-mentioned conventional onion harvesting machine by mounting a ridge breaking device, and excavated and transported by a digging and transporting conveyor device. Reduce the load on the pick-up / transport conveyor device,
It is an object of the present invention to provide a green onion harvester that improves work efficiency.

[0005]

In order to achieve this object, a ridge breaking device for a green onion harvester according to the present invention is characterized by 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 onion in a vertical position and transports it while lifting it, and a digging / transporting conveyor device that is installed above the digging / transportation conveyor device and that is digged from the field A pinch transport belt that pinches and transports the foliage in a vertical position, and is supported by the tip of a pinch transport belt and wheel support arms provided on both sides of the digging and transport conveyor device, and is in contact with both sides of the harvest ridge. In a leek harvesting machine equipped with a grounding wheel, a ridge breaking device for breaking the harvesting ridge from both sides is provided between the holding wheel and the tip of the excavating / transporting conveyor device and the grounding wheel.

B. The ridge breaking device was mounted on a wheel support arm.

[0008]

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

[0009] The above A. By providing a ridge breaking device that breaks the harvest ridge from both sides between the tip of the sandwiching conveyor belt and the excavating / transporting conveyor device and the grounding wheel, soil can be removed from both sides of the harvest ridge by the ridge breaking device. Since the root of the green onion is excavated and subsequently conveyed by the excavating / transporting conveyor device, the amount of soil adhering to the root of the green onion is reduced, and the load on the excavating / transporting conveyor device is reduced.

[0010] B. above. By mounting the ridge breaking device on the wheel support arm according to the configuration described above, good performance can be obtained while the configuration is simple.

[0011]

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 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 a support frame for supporting the excavating / transporting conveyor device 8 from the rear is vertically connected to a support frame 10 which also serves as a transmission case projecting forward from the body 2 via a shaft 8a. It is pivotally supported. 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.

The left and right facing surfaces of the holding and conveying belt 9 are pressurized by a large number of pressurizing rollers 9a, 9a,... To convey and convey the onion foliage without damaging the foliage. 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 thereof is connected to the base 2 by the body 2.
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.

Then, the hydraulic cylinder 11
When the transport conveyor device 8 is rotated upward, the nipping / conveying belt 9 is moved backward by the link arms 12 and 13 in conjunction therewith, and the excavating / transporting conveyor device 8 comes into contact with the nipping / conveying belt 9. Absent. An elongated hole 12a is provided between the distal end of the link arm 12 and the nipping and conveying belt 9, and the supporting height of the nipping and conveying belt 9 is adjusted by adjusting the supporting position of the link arm 12 with respect to the elongate hole 12a. .

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, and is connected to a drive section cover 4a that covers a drive section below the work table. Is opened and closed. 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. An operation of accommodating the container 17 in a container (not shown) placed at the end of the table 17 or accommodating the container 17 in a predetermined amount at a time is performed. The leek bundle prepared on the work table 17 is transferred 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 harvest ridge is supported by the support arm 23 between the wheel 24 and the excavating / transporting conveyor device 8 and the leading end of the sandwiching / conveying belt 9. It is provided so that up, down, left and right movement adjustment is 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 vertically moved by a vertical adjusting cylinder 25 to adjust the digging depth, the ridge is collapsed by the advance of the fuselage, and the ridge is collapsed from both sides by the disc 26, and the green onion and the ridged soil are cut from below by the digging blade 6 from below. 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. If there is a left or right inclination between the ridges on which the crawlers 3, 3 travel, the crawlers 3, 3
Is adjusted up and down to keep the aircraft horizontal 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. When performing maintenance on the lower drive unit of the worktable 17,
When the work table 17 is opened by rotating it upward around the fulcrum 17a, the drive unit cover 4a is also opened and maintenance can be easily performed. When the work table 17 is closed, the drive unit cover 4a is also closed at the same time.

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 of the green onion except for the operation of steering the aircraft at the ridge end of the target onion ridge.

[0027]

As described above, according to the ridge breaking device for a green onion harvester of the present invention, the following effects can be obtained.

[0028] A ridge breaking device that breaks the harvest ridge from both sides is provided between the tip of the nipping / conveying belt and the excavating / transporting conveyor device and the grounding wheel. And then digging
The onion roots will be dug up and conveyed by the conveyor device, and the amount of soil adhering to the onion roots will be reduced, reducing the load on the excavating and conveying conveyor device and improving the performance. it can.

[0029] Since the ridge breaking device is mounted on the wheel support arm, good performance can be exhibited while the support structure of the ridge breaking device is simple.

[Brief description of the drawings]

FIG. 1 is an overall side view of a green 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 from the opposite side of FIG. 1;

FIG. 5 is a side view of the work table removed from FIG. 4 and the work table is rotated rearward;

FIG. 6 is an overall rear view of the onion harvester according to the present invention.

[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 4a Driving unit cover 5 Transmission 6 Digging blade 7 Endless bar conveyor 8 Digging and conveying conveyor device 8a Shaft 8b Bracket 9 Nipping and conveying belt 9a Pressure roller 10 Supporting frame 11 Hydraulic cylinder 12, 13 Link arm 12a Slot 14 earth removal rotor 15 root cutting and earth removal drum 16 second pinching conveyance belt 16a leaf conveyance belt 17 work table 17a fulcrum 18 accommodation table 19 control 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 for placing the root of the green onion dug up by the digging blade in a vertical position and transporting it while lifting, and provided above the digging / transporting conveyor device to dig from a field A nipping / conveying belt for nipping and transporting the foliage of the raised green onions in a vertical position, and a tip supported by the nipping / conveying belt and a tip end of a wheel supporting arm provided on both sides of the digging / transporting conveyor device, thereby harvesting. An onion harvesting machine having a grounding wheel in contact with both sides of the ridge, wherein a ridge breaking device for breaking the harvesting ridge from both sides is provided between the holding wheel and the tip of the digging / transporting conveyor device and the grounding wheel. Features Ridge break apparatus of green onion harvester to. 2. The ridge breaking device of a green onion harvester according to claim 1, wherein the ridge breaking device is mounted on a wheel support arm.