JPH09107758A - Farm product harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a potato branch-treating machine mounted on the front side of a farm product harvester to harvest rootcrops such as sweet potatoes or potatoes from the field and designed to pull up and remove branches left on field ridges. SOLUTION: (1) A potato branch-treating machine mounted on the front side of a digging conveyor of a farm product harvester is supported in a vertically movable way by a parallel link mechanism relatively to the digging conveyor, and (2) a pair of left and right guides are supported with at least one party thereof expandable/retractable transversely. (3) The guides are curved so that the tips lie along the upper face of field ridges. (4) The tips of the guides are provided with a soil-extractive space, (5) a ridge guide roller enables such operations as horizontal revolution, vertical control, lateral width control and angle control relative to field ridges, and (6) a sprocket wheel to drive an endless chain is provided with a soil-extractive groove.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stalk processing device which is provided in front of an agricultural product harvesting machine for harvesting root vegetables such as sweet potatoes and potatoes from a field and pulls up and removes the stalks remaining on field ridges. Regarding

[0002]

2. Description of the Related Art Conventionally, as a crop harvesting machine that harvests root vegetables such as sweet potatoes and potatoes from a field, sorts and stores the crops, a self-propelled machine passes from the lower front of the machine to the upper center of the machine. It is known that a digging conveyor device for digging and transporting agricultural products in a field is provided at the rear.

Further, a pair of left and right guides are provided at the front side of the excavating conveyor device and inclined so that the front end side is lower and the rear end side becomes gradually higher with respect to the traveling direction of the fuselage. In addition, an endless chain that turns inwardly facing each other is wound, and a potato stalk treatment device provided with a ridge guide roller at the front side of the guide and the endless chain is disposed to remove vines and foliage. The present applicant has proposed a technique in which potato stalks remaining on a field ridge are removed by removal, and the potatoes are processed so as to be broken apart.

[0004]

The above-mentioned strobili treatment device is fixed to the front side of the digging conveyor device, and the followability to the harvest ridges of the treatment process is not sufficient, and the individual There was also a problem to be improved in the component part. The present invention has been made to solve the above problems.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the present invention provides (1). A self-propelled aircraft is dug out of agricultural products in the field from the front of the lower portion of the fuselage to the rear of the fuselage through the upper center of the fuselage. Providing a digging conveyor device that conveys the stalk, which is located in front of this digging conveyor device, removes the vines and foliage and removes the stalks that remain on the field ridges. In the agricultural product harvesting machine that is arranged, the above-mentioned straw-decker processing device is provided with a pair of left and right guides inclined so that the front end side is low with respect to the traveling direction of the machine body, and the rear end side is gradually increased, and the outer circumferences of both guides are provided. The endless chain that turns toward the inside facing each other is wound, and the ridge guide rollers are arranged on the front side of the guide and the endless chain. In contrast, the parallel link mechanism Movable up and down the thing,

(2) At least one of the pair of left and right guides is supported so that it can be expanded and contracted in the left and right direction.

(3). The guide is curved so that its tip portion is along the upper surface of the field ridge,

(4). A space for removing soil is formed at the tip of the guide.

(5) The ridge guide roller is configured to be capable of horizontal rotation, vertical adjustment, horizontal width adjustment, and angle adjustment with respect to the field ridge. (6). Sprocket for driving the endless chain Each wheel features a groove for removing soil.

[0010]

According to the above construction, the agricultural harvester of the present invention has
The following actions are performed. . The straw treatment device is provided with a pair of left and right guides that are inclined so that the front end side is low and the rear end side is gradually higher with respect to the traveling direction of the aircraft, and the guides are turned toward the inside on the outer circumference of both guides. By winding a moving endless chain and disposing a ridge guide roller on the front side of the guide and the endless chain, the left and right endless chains hold a stenosis, and the endless chain rotates and the body advances. The pressure force on the ridge surface by the ridge guide roller pulls up the bellows diagonally upwards and pulls it out, and separates the limbs that are connected to the bellows.
In addition, by supporting the bellows processing device so that it can move up and down by the parallel link mechanism with respect to the excavation conveyor device,
In addition to the harvesting machine, the bellows processing device moves up and down independently to improve the followability to the harvest ridges and perform highly accurate bellows processing work.

[0011] At least one of the pair of left and right guides is supported so that it can be expanded and contracted in the left and right direction, so that it can bite between left and right endless chains such as stones scattered in the field that have a diameter larger than that of the bellows. If so, do not damage the chain and guide.

[0012] By bending the guide so that the tip end portion follows the upper surface of the field ridge, the tip end portions of the chain and the guide do not plunge into the harvested field scene and the chain and guide are not damaged.

.. By forming a space for removing soil at the tip of the guide, the soil that is lifted up along with the strawberries that are pulled up by the left and right chains is returned to the field from the space of the guide, and the soil is placed at the front end of the guide. It does not collect and block the chain.

[0014] The ridge guide roller rotates horizontally,
By enabling vertical adjustment, left-right width adjustment, and angle adjustment to the field ridges respectively, the followability to the harvest ridges at the time of work is improved, and the accuracy of the processing of stalks is improved.

[0015] By providing a groove for removing soil on the sprocket wheel that drives the endless chain, soil in the field that is attached to the endless chain and moving is prevented from collecting on the sprocket wheel, improving workability and work accuracy. .

[0016]

Embodiments of the present invention will be specifically described below with reference to the accompanying drawings. In FIG. 6 and FIG. 7, reference numeral 1 is a potato harvester, and this potato harvester 1 is equipped with crawlers 3 and 3 which form a pair of left and right bodies and enable spin (super-trust) turning. ing. An engine 4 is mounted on one side of the fuselage 2 and slightly forward, and a hydraulic device driven by the engine 4 is provided near the engine 4. A transmission 5 is provided between the crawlers 3 and 3 at a lower position near the rear of the machine body 2. Further, from the front lower part of the machine body 2 between the crawlers 3 and 3 to the rear part of the machine body through the upper part of the machine body, the field potatoes (agricultural products) are excavated and conveyed backward, and the tip side is inclined so as to descend. A take-up conveyor device 6 is provided. A first operating portion 7 and a second operating portion 7a are provided on both sides of the machine body 2 on the rear side of the engine 4.

The digging conveyor device 6 is supported by a pair of left and right side frames (frames) 8, is provided with a digging blade 9 at its tip, and is made of an endless link rod so as to be continuous with the digging blade 9. A series of slanted conveyance units 10 having slats at predetermined intervals and a selection conveyance unit 11 that conveys them so as to slightly descend toward the end are provided. In addition, the excavating conveyor device 6 has a rotation shaft (rotation fulcrum) 8 at an intermediate portion thereof.
a can be rotated in the vertical direction around the center of the
The rotation is controlled by the expansion and contraction operation of a hydraulic cylinder (not shown) provided between the side frame 8 and the side frame 8. Behind the digging conveyor device 6, the first operating unit 7 and the second operating unit 7a are operated to operate the machine body and drive the unit, and the sorting and conveying unit 11 performs the sorting operation. A worker seat 12 and a step 12a for a worker to ride are provided.

The transmission 5 that receives power from the engine 4 to change gears is equipped with a hydraulic continuously variable transmission (HST) (not shown) for continuously changing gears. It is possible to change the speed of the crawler 3 and 3 by continuously connecting and disconnecting the power transmission via the side clutch and the differential device to make the crawlers 3 and 3 change speed continuously and steplessly, and also possible to make a spin turn (super-field turn). I have to. Further, the transmission 5 transmits the shifted power to the excavating conveyor device 6, and the speed of the conveyor can be adjusted steplessly and stepwise. By combining with stepped running, the digging work speed can be set freely.

Left and right side frames 8, 8 of the digging conveyor device 6
The ridge follower 14 is provided on the bracket 13 projecting forward from the ridge along the length of the ridge to be harvested along with the movement of the fuselage. The ridge follower 14 is provided with a pair of wheels 15, 15 which are in contact with the inclined shoulders of the ridge to be harvested.
Are provided facing each other, and both wheels 15 can be adjusted up and down with respect to the digging conveyor device 6 by an up and down adjustment mechanism 16.
In addition, it is supported by slide mechanisms 17, 17 so as to be able to adjust the horizontal movement. Further, the pair of wheels 15, 15 have a camber angle, rotate in contact with the inclined shoulders of the ridge to be harvested, and steer and move the body following the ridge to be harvested. .

Spare container mounting bases 18 are provided on both sides of the operating devices 7 and 7a, respectively. Each of the spare container mounting bases 18 mounts one container, and can be folded to the side of the machine body 2 and project outward from the machine body 2. Nothing is provided below the sorting / transporting unit 11 so that soil, contaminants, and the like can be directly dropped from the sorting / transporting unit 11 into the field. A pair of left and right handgrip protectors 19 are provided. Although not shown, the gripper / protector 19 is provided with a transport unit stop switch for stopping the driving of the inclined transport unit 10 and the sorting transport unit 11 when an operator has his / her hand caught in the sorting / transport unit 11. ing. Behind the sorting and conveying section 11, a container mounting table 20 is provided.
Is detachably provided, and a spare container placing table 21 is detachably provided on the container placing table 20.

On the side of the machine body 2 on the side opposite to the engine 4, vines, foliage, large soil blocks, stones, etc. other than potatoes are removed from the harvested food conveyed by the inclined conveyance section 10, and
An intermediate sorter step 22 is provided for a sorter who mainly performs a pretreatment work such as separating the stalk and the connected stem from the harvested products which are dug up by the digging blade 9 and are conveyed in a collective manner. ing. A seat (not shown) is provided above the step 22 for intermediate sorters. Step 2
Spare container mounting bases for mounting spare containers are provided in front of and behind 2, and in front of the engine 4 (not shown). In addition, the step 22 for the intermediate sorter,
The spare container mounting table and the like may be foldable or detachable.

Located on the front side of the digging conveyor device 6 and the ridge-following device 14, the vines and foliage are removed and the stalks remaining on the field ridges are sandwiched and pulled up while pulling out. There is provided a straw treatment device 23 shown in detail in FIGS. This bellflower processing device 23
Parallel link mechanisms 25, 2 attached to a pair of left and right support frames 24, 24 extending from the frame of the ridge following device 14.
The main body frame 26 is supported in a tilted manner and can be moved up and down via 5. A support plate 27 is provided on one side of the body frame 26 in the left-right direction, and an expansion / contraction link mechanism having a tension spring 29 stretched between a pair of expansion / contraction links 28 on the other side is provided. , 30 are provided by a pair of front and rear movable support rods 30a, 30a from the expansion / contraction link mechanism.
And a pair of left and right chain guides 31, 31 at the lower end thereof are lower at the front end side with respect to the traveling direction of the body,
The rear end is fixedly mounted in an inclined state so as to be gradually higher. The support plate 27 may be the link mechanism.

Curved portions 31a and 31a are formed at the tips of the chain guides 31 and 31 so as to follow the upper surface of the field ridges, and a space 31 for removing soil is provided at the tips.
b, 31b. Endless chains 32 are wound around the outer circumferences of the chain guides 31, 31 so as to face each other and rotate inward. A hydraulic motor 33 is provided at the rear end of the main body frame 26, and transmission cases 34, 34 having a pair of transmission shafts that receive power from the hydraulic motor 33 and rotate are suspended, and the lower ends thereof are endless chains. 3
2 is connected to sprocket wheels 35, 35 for driving the rotation of the wheel 2. The sprocket wheel 35 has a soil removal groove 35a. On the front side of the chain guide 31 and the endless chain 32, a pair of left and right ridge pressing rollers 36 supported by a support arm protruding forward from the main body frame 26 is provided. The ridge pressing roller 36 can be adjusted vertically by a vertical adjustment handle 36a.

As shown in FIGS. 8 and 9, the ridge pressing roller 36 includes a vertical adjusting handle 36a, a horizontal adjusting mechanism 36b, and an angle adjusting mechanism 36 for the field ridge.
c, a horizontal rotation mechanism 36d and the like may be provided to enable horizontal rotation, vertical adjustment, horizontal width adjustment, and angle adjustment with respect to the field ridges.

Next, the operation of the potato harvester 1 of the embodiment constructed as described above will be described. Potato harvester 1
For example, when harvesting root crops such as sweet potatoes and potatoes from a field, the wheels 15, 15 of the ridge following device 14 are rolled and contacted with the inclined both shoulders of the ridge to be harvested, and the digging conveyor device 6
The excavating blade 9 is moved up and down by a hydraulic cylinder to adjust the excavating depth, and the harvest is dug up by the excavating blade 9 by advancing the machine, and the machine body is inclined while being conveyed with the soil by the inclined conveying unit 10. Lift upwards. During this transportation, soil falls between the link rods, and if necessary, the vines other than the potatoes from the harvested products transported on the inclined transportation unit 10 by the operator sitting on the seat of the step 22 for the intermediate sorter. Pretreatment work such as removal of foliage, large soil blocks, stones, etc. is carried out and brought to the sorting and conveying section 11.

According to the present invention, the stalk processing device 2 located on the front side of the excavation conveyor device 6 for biting and pulling up and pulling out the stalks and leaves which have been removed from the vines and foliage and remain on the field ridges.
Since 3 is provided so as to be movable up and down, it has good followability to the field ridges, and the bellows are pulled up from the ridges held by the ridge pressing roller 36 so as to be caught between the endless chains 32, 32. , It is pulled out and the potatoes in the soil are scattered. Therefore, the digging conveyor device 6 is carried on the conveyor in an undesired state, and the work of the intermediate sorter may be omitted.

Even when a large-stalked stalk like a stump such as stones scattered in the field is bitten between the endless chains 32, 32 during operation, one of the chain guide 31 and the endless chain 32 uses the expansion / contraction link mechanism. Since it can move in the left-right direction, the endless chains 32, 32 and the chain guides 31, 31 are not damaged. In addition, since the chain guides 31 and 31 have a curved portion 31a at the front end, the front end does not penetrate into the harvesting field scene, and the space 31b for soil removal is formed at the front end. The soil lifted together with the potato stalks lifted by the left and right endless chains 32 is returned to the field from the guide space 31b.

The ridge guide roller 36 is provided with an up / down adjusting handle 36a, a left / right width adjusting mechanism 36b, an angle adjusting mechanism 36c for a field ridge, a horizontal rotating mechanism 36d, etc., so that the ridge guiding roller 36 can be horizontally rotated and vertically adjusted. By adjusting the left-right width and adjusting the angle to the field ridges, the ability to follow the harvest ridges at the time of work is improved, and the accuracy of the processing of stalks is improved. Further, since the sprocket wheel 35 for driving the endless chain 32 is provided with a groove 35a for removing soil, it is possible to prevent the soil of the field which adheres and moves to the endless chain 32 from accumulating on the sprocket wheel 35. .

Workers sitting on the operator seats 12 and 12 manually select the non-potatoes of the harvested products moving on the sorting / transporting unit 11, and place the potatoes remaining on the sorting / transporting unit 11 in a container. It is housed in a container placed on the table 20. When the potatoes in the container are full, replace them with spare containers. A worker's seat 1 during such sorting work
The workers sitting at 2, 12 have grips and protectors 19
Is provided, the operation of sorting and sorting can be performed safely, and when the sorting / transporting unit 11 is caught by a hand, the transporting unit stop switch stops the driving of the inclined transporting unit 10 and the sorting / transporting unit 11. .

Here, the potato harvester 1 comprises a crawler 3,
Between the lower part of the fuselage, the upper part of the fuselage and the upper part of the fuselage to the rear of the fuselage, a digging conveyor device 6 is provided, and operator seats 12 and 12 are provided behind the digging conveyor device 6. The person can also perform the machine operation by the control devices 7 and 7a and the sorting work in the sorting and conveying section 11, and the harvester can be miniaturized to the minimum. In addition, the excavating conveyor device 6 can adjust the moving speed steplessly or stepwise, and can move up and down with respect to the body 2, so that the excavating conveyor device 6 can move the excavating conveyor device 6 appropriately in accordance with field conditions and crop conditions. By selecting the harvesting depth, a high-precision and efficient harvesting operation is performed.

In addition, control devices 7, 7a are provided on both sides of the body 2.
On the left and right sides of the machine
8, a spare container placing table 21 on the container placing table 20
Since each of them is provided, one operator can perform the operation of the machine, the work of selecting the harvested products, and the work of accommodating the harvested products in a container. Therefore, even a small harvester can perform multi-functional work. Furthermore, the crawlers 3 and 3 are continuously and steplessly changed in speed and travel, and the spin turn (super-texture turn) is enabled, so that the machine body 2 spins stably on a headland or the like. It is possible to move to the next harvest ridge with one turn, and it is possible to turn with good balance in either the left or right direction. Therefore, the crawlers 3 and 3 do not greatly scrape the soil of the field.

In front of the digging conveyor device 6, there is provided a ridge tracking device 14 which follows the movement of the machine body along the lengthwise direction of the ridge to be harvested, and a pair of ridges to be rolled to the inclined both shoulders of the ridge to be harvested. Since the wheels 15 are provided so as to face each other so as to be vertically adjustable and horizontally adjustable with respect to the digging conveyor device 6, both wheels 15 accurately follow the ridges to be harvested to automatically steer the machine body. , Digging conveyor device 6
Automatic excavation and transportation are carried out. Therefore, the operator can spend most of the time on the sorting work except for the operation of steering the machine at the ridge end of the ridge to be harvested. When the headland turning is performed at the field end, the excavating conveyor device 6 is rotated around the rotation shaft (rotation fulcrum) 8a by the hydraulic cylinder to raise the front side, and the crawlers 3, 3 are rotated together with the spin rotation. Can turn with a small turning radius.

[0033]

As described above, the agricultural product harvester of the present invention has the following effects. . The straw treatment device is provided with a pair of left and right guides that are inclined so that the front end side is low and the rear end side is gradually higher with respect to the traveling direction of the aircraft, and the guides are turned toward the inside on the outer circumference of both guides. Since the moving endless chain is wound and the ridge guide rollers are arranged on the front side of the guide and the endless chain, the left and right endless chains sandwich the sword, and the endless chain rotates and the body moves and the ridges move. The pressure force on the furrow surface by the guide roller can pull up the bellows diagonally upwards and pull it out, thereby making it possible to separate pieces that are connected to the bellows. In addition, since the straw processing device is supported by the parallel link mechanism with respect to the excavation conveyor device so that it can move up and down,
In addition to the harvester, the scarlet processing device can be independently moved up and down, the followability to the harvest ridges is good, and highly accurate bellow processing can be performed. Therefore, it is possible to favorably carry out the subsequent conveyance and selection of the garbage in the digging conveyor device.

[0034] At least one of the pair of left and right guides is supported so that it can be expanded and contracted in the left and right direction.
Even if a large diameter stone such as a stone scattered in the field is caught between the left and right endless chains, the guide does not spread laterally and damage the chain and the guide.

.. Since the tip of the guide is curved so that the tip of the guide extends along the upper surface of the field ridge, the tip of the chain and the guide do not plunge into the harvest field scene and the chain and the guide are not damaged.

[0036] Since the space for removing soil is formed at the tip of the guide, the soil that is lifted up along with the swordflower that is pulled up by the left and right chains is returned to the field from the space of the guide, and the soil is placed at the front of the guide and chain. It is possible to prevent accumulation and clogging of the chain.

.. The ridge guide roller rotates horizontally,
Since the vertical adjustment, the horizontal adjustment, and the angle adjustment for the field ridges are possible respectively, the followability to the harvest ridges during the harvesting work is improved, and the accuracy of the processing of the bellows can be improved.

.. Since the sprocket wheel that drives the endless chain is provided with a groove for removing soil, soil in the field that is attached to the endless chain and moving is prevented from collecting on the sprocket wheel, improving workability and work accuracy. be able to.

[Brief description of the drawings]

FIG. 1 is a side view of a straw treatment apparatus according to the present invention.

FIG. 2 is a front view of the ridge guide roller.

FIG. 3 is a partial plan view of a straw processing device.

FIG. 4 is a plan view of a sprocket wheel that drives an endless chain.

FIG. 5 is a sectional view taken along line AA of FIG. 4;

FIG. 6 is a side view of the entire agricultural product harvester according to the present invention.

FIG. 7 is a plan view of the same.

FIG. 8 is a side view of another embodiment of the ridge guide roller.

FIG. 9 is a front view of the same.

[Explanation of symbols]

1 potato harvester 2 machine body 3 crawler 4 engine 5 transmission 6 excavation conveyor device 7 first operation part 7a second operation part 8 side frame (frame) 8a rotary shaft (rotation fulcrum) 9 excavation blade 10 tilt Conveyor 11 Sorting Conveyor 12 Worker seat 12a Worker step 13 Bracket 14 Ridge tracking device 15 Wheel 16 Vertical adjustment mechanism 17 Slide mechanism 18,21 Spare container mounting table 19 Grip and protector 20 Container mounting table 22 Intermediate selection Steps 23 for the person who handle the bellows 24 Support frame 25 Parallel link mechanism 26 Main body frame 27 Support plate 28 Expansion / contraction link 29 Extension spring 30 Support rod 30a Moving support rod 31 Chain guide 31a Curved portion 31b Earth removal space 32 Endless chain 33 Hydraulic motor 34 Built-in transmission shaft The transmission case 35 the sprocket wheel 36 Seosae roller 36a vertically adjusting handle 36
b Left-right width adjustment mechanism 36c Angle adjustment mechanism for field ridges 36d Horizontal rotation mechanism

Front page continuation (72) Inventor Hisayoshi Tokunaga 684 Nakamune, Okayama City, Okayama Prefecture Kobashi Industry Co., Ltd.

Claims (6)

[Claims] 1. A self-propelled aircraft is provided with a digging conveyor device for digging and transporting agricultural products in a field from the lower part of the body to the upper part of the center of the body to the rear part of the body, and is located in front of the digging conveyor device. Then, in the agricultural product harvesting machine provided with a stalk processing device that removes the vine, the foliage part is removed by removing the stalks remaining on the field ridges, the stalk processing device is in the traveling direction of the machine body. On the other hand, a pair of left and right guides that are inclined so that the front end side is low and the rear end side is gradually raised is provided, and the endless chains that turn inward facing each other are wound around the outer peripheries of these guides. A ridge harvesting machine characterized in that a furrow guide roller is arranged on the front side of the guide and the endless chain, and the stalk processing device is supported by a parallel link mechanism with respect to the excavation conveyor device so as to be vertically movable. . 2. The agricultural product harvesting machine according to claim 1, wherein at least one of the pair of left and right guides is supported so as to be capable of expanding and contracting in the left and right direction. 3. The agricultural product harvesting machine according to claim 1, wherein the guide is curved so that a tip portion thereof is along the upper surface of the field ridge. 4. The agricultural product harvesting machine according to claim 1, wherein a space for removing soil is formed at the tip of said guide. 5. The ridge guide roller is configured to be capable of horizontal rotation, vertical adjustment, horizontal width adjustment, and angle adjustment with respect to a field ridge, respectively.
Agriculture harvester as described. 6. The agricultural product harvesting machine according to claim 1, wherein a sprocket wheel for driving the endless chain is provided with a groove for removing soil.