JP2000312521A - Soil removing drum for welsh onion harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve protrusions of a soil removing drum of a self-propelled type Welsh onion harvester. SOLUTION: This soil removing drum 15 for a self-propelled type Welsh onion harvester is composed by providing many protrusions 15b on the outer peripheral surface of a rotating drum 15a in the Welsh onion harvester comprising a digging and carrying conveyor 8 installed and extending from the front of the lower part of a machine body through the lower part in the center of a machine body to the rear of the machine body in a self-propelled type machine body, a nipping and conveying belt 9 arranged above a nipping and carrying conveyor 8 and the soil removing drum 15 provided between the digging and carrying conveyor 8 and the nipping and conveying belt 9. Furthermore, the mounting angle of the protrusions 15b from the rotary direction of the drum 15 is 10-20 deg.. The protrusions 15b are mounted in zigzags from the rotary direction of the rotating drum 15. The shape of the protrusions 15 is such that the tilt angle on the front side 14c from the rotary direction of the rotating drum 15a is gentle and the tilt angle on the rear side 15b is steep to provide an entanglement eliminating angle.

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 an improvement in a protrusion of a ground drop drum for removing soil adhering to roots of green onions dug from a field.

[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 located above the digging / transporting conveyor device, from the field A clamping conveyor belt that clamps and transports the stalks of dug up onion in a vertical position, and a green onion that is provided between the excavating and conveying conveyor device and the clamping conveyor belt, and is clamped and conveyed by the clamping conveyor belt. A green onion harvester having a soil removal drum for removing soil from the root of a greenhouse has been proposed.

[0003]

In the above-mentioned dumping drum of the conventional onion harvesting machine, a large number of projections attached to the outer peripheral surface of the rotary drum are formed in a mountain shape like a linear toothing of a threshing machine. Since the mounting angle with respect to the rotation direction of the drum is as large as about 25 degrees, the root of the green onion may be damaged. Also, since the mounting of the projections in the rotation direction of the rotary drum is all inclined toward one side, the efficiency of dropping the soil was poor. Furthermore, since the shape of the projection has a mountain shape in which the inclination angles of the front side and the rear side with respect to the rotation direction of the rotary drum are equal, the root of the green onion is entangled in the rotation direction front side,
There was a problem that the soil drop function might be reduced.

Accordingly, the present invention is to improve the protrusion of the dumping drum of the above-mentioned conventional onion harvesting machine so that the dumping can be performed without damaging the root of the green onion, the dumping efficiency is high, and the root of the green onion is not entangled. It is an object of the present invention to provide a dumping drum of a green onion harvesting machine in which the dropping function does not deteriorate.

[0005]

To achieve this object, a dumping drum of 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 digged onion in a vertical position and transports it while lifting it, and a green onion digged from a field located above the digging / transportation 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 the leek harvester having a dropping drum, the dumping drum is configured by providing a number of protrusions on the outer peripheral surface of a rotating drum, and the mounting angle of these protrusions with respect to the drum rotation direction is set to 10 to 20 degrees.

B. The mounting of the projections in the rotating direction of the rotating drum was staggered.

C. The shape of the projection is such that the inclination angle of the front side with respect to the rotation direction of the rotary drum is gentle, the inclination angle of the rear side is steep, and the discharge angle is provided.

[0009]

By adopting such a configuration, the following actions are performed in the earth removal drum of the green onion harvester of the present invention.

[0010] The above A. By making the mounting angle of the projection with respect to the drum rotation direction 10 to 20 degrees loose, the impact of the projection on the root of the green onion is weakened,
The evacuation is performed without damaging the root.

[0011] B. above. With the configuration of the above, the mounting of the protrusion in the rotation direction of the rotating drum is staggered,
The protrusions evenly contact the roots of the green onions from both sides, and the soil dropping efficiency is improved.

[0012] C. above. With this configuration, the shape of the projections is such that the inclination angle on the front side is gentle with respect to the rotation direction of the rotating drum, the inclination angle on the rear side is steep, and the front side has a discharge angle, so The roots of the rotary drum do not become entangled with the projections, and do not lower the soil removal function of the rotating drum.

[0013]

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 front of the lower part 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. 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 vertically rotatable 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 pressing rollers 9a, 9a,..., And are conveyed while holding the foliage of the green onion without damaging it. 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 pivoted 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. On the lower side of the excavating / transporting conveyor device 8, a ground dropping rotor 14 for dropping green onion is supported. Behind the ground dropping rotor 14, the root of the green onion is cut off. A dumping drum 15 for removing soil is provided.

As shown in FIGS. 1 and 2, a plurality of protrusions 15b are formed on the outer peripheral surface of the rotating drum 15a.
And the mounting angle θ of these projections 15b with respect to the drum rotation direction (arrow) is 16 degrees. Is preferably 10 to 20 degrees. In addition, the protrusions 15b are alternately attached to the rotation direction of the rotating drum 15a in a staggered manner. Further, the projection 15b
To the front side 1 with respect to the rotation direction of the rotating drum 15a.
The angle of inclination of 5c is gentle, and the angle of inclination of the rear side 15d is steep, so as to have a discharge angle in the rotating direction of the rotating drum.

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 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 holding / 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, there are provided 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. 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 / transporting 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.
The vertical adjustment cylinder 25 adjusts the excavation / transportation conveyor device 8 by adjusting the vertical movement of the excavating / transporting conveyor device 8 along with the vertical movement 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 the up / down / left / right movement adjustment mechanism 26a adjusts the up / down / left / right movement. 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 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 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 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. 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 onion discharged onto the workbench 17 is the worker standing on the worker step 22 or the operator (worker) sitting on the seat 21 (or standing on the seat 21).
Are bundled or packed in a bag, and the bundled green onion bundle packed or bagged is stored in a container in a substantially predetermined amount or moved to the rear of the work table 17 in a container 17 to be stored in the storage table 18. It is moved to and placed.

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. Further, 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, grounding wheels 24, 24 are provided along the length 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 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. Automatic excavation / transportation is performed by the excavating / transporting conveyor device 8, the nipping / conveying belt 9, and the second nipping / conveying 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.

[0029]

As described above, according to the earth removal drum of the leek harvester of the present invention, the following effects can be obtained.

[0030] The earth removal drum is configured by providing a number of protrusions on the outer peripheral surface of the rotating drum, and the mounting angle of these protrusions with respect to the drum rotation direction is set to 10 to 20 degrees, so that the impact of the protrusions on the green onion root is weakened, The root can be cut and the soil removed without damaging the root.

[0031] Since the projections are attached in a zigzag manner in the rotating direction of the rotating drum, the projections uniformly contact the root portion of the green onion from both sides, so that the soil dropping efficiency can be increased.

[0032] The shape of the projection is set so that the inclination angle of the front side with respect to the rotation direction of the rotating drum is gentle, the inclination angle of the rear side is steep, and the rejection angle is provided. There is no entanglement, and there is no decrease in root cutting and soil removal functions.

[Brief description of the drawings]

FIG. 1 is a front view of a tumbling drum 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 8 Digging / transporting conveyor device 8a Shaft 8b Bracket 9 Nipping / conveying belt 9a Pressure roller 10 Support frame 11 Hydraulic cylinder 12, 13 Link arm 14 Land drop roller TA 15 Root cutting and earth removal drum 15a Rotating drum 1
5b Projection 15c Front side of projection 15d Rear side of projection 16 Second pinch transport belt 16a Leaf transport belt 17 Work table 17a Support point 18 Storage table 19 Operating section 20 Step for operator 21 Seat 21a Support arm 22 Step for operator 22a Auxiliary step 23 Wheel support arm 24 Grounding wheel 24a Left / right movement adjustment mechanism 25 Vertical adjustment cylinder 26 Ridge breaking disk 26a Vertical / left / right movement adjustment mechanism

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Minoru Oda 684 Nakahane, Okayama-shi, Okayama Prefecture Kobashi Industrial Co., Ltd. F-term (reference)

Claims (3)

[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 located above the digging / transporting conveyor device, from the field A clamping conveyor belt that clamps and transports the stalks of dug up onion in a vertical position, and a green onion that is provided between the excavating and conveying conveyor device and the clamping conveyor belt, and is clamped and conveyed by the clamping conveyor belt. An onion harvesting machine having a dumping drum for dropping soil from the root of the drum, wherein the dumping drum is configured by providing a large number of projections on the outer peripheral surface of a rotating drum, and setting an angle of attachment of these projections to the drum rotation direction by 10 to 10. 2 Sat down drum of the leek harvester which is characterized in that a degree. 2. A dumping drum for an onion harvester according to claim 1, wherein the mounting of the projections in the rotating direction of the rotating drum is staggered. 3. The shape of the projections is such that the inclination angle of the front side with respect to the rotation direction of the rotary drum is gentle, the inclination angle of the rear side is steep, and the discharge angle is provided.
Or the dumping drum of the green onion harvester according to 2.