JP2673866B2 - Agricultural harvester - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to an agricultural product harvesting machine for harvesting root vegetables such as sweet potato, potato, onion, beet, taro, konjac potato, ginseng and lacquer root.

[0002]

2. Description of the Related Art As a self-propelled agricultural product harvester for harvesting root vegetables, the applicant of the present invention excavates agricultural products vegetated in the field from the front to the rear of the center of the machine body between the left and right traveling devices. , A plurality of sorting conveyors that perform sorting subsequent to the digging conveyor that carries the transportation, and a delivery body is provided between at least the first sorting conveyor and the second sorting conveyor, and the delivery body A gap is provided between the first sorting conveyor and the first sorting conveyor, the delivery body on the one side in the moving direction of the first sorting conveyor is cut out, and the delivery body is placed on the first sorting conveyor corresponding to the cutout portion of the delivery body. We have proposed a vertical partition plate.

[0003]

In the above-mentioned agricultural product harvesting machine, since the gap between the transfer body and the first sorting conveyor and the vertical partition plate are of a fixed type, the movement and adjustment are not possible. For example, when there is a large amount of harvested agricultural products that are dug up and conveyed by a digging conveyor or when there is a large amount of soil, it is difficult to take appropriate measures, and sufficient sorting work may not be possible. was there. The present invention has been made to solve the above problems.

[0004]

In order to achieve the above object, the present invention provides (1) digging and transporting agricultural products vegetated in a field from the front to the rear of the center of the body between the left and right traveling devices. In a self-propelled agricultural product harvesting machine provided with a digging conveyor for performing a selection and a selection conveyor for performing a selection, a plurality of selection conveyors are continuously provided, and at least a first selection conveyor and a second selection conveyor among them are provided. A transfer body is provided on the first sorting conveyor, and a gap whose distance can be adjusted is provided between the delivery body and the first sorting conveyor. (2) A vertical partition plate is provided on the first sorting conveyor. The delivery end portion of the first sorting conveyor partitioned by the plate is provided with a discharge port on one side partitioned by the vertical partition plate and a delivery body with a transport path formed on the other side. The partition plate can be moved and adjusted to the left and right Things, (4) the delivery member providing the rake-like portion, characterized by each.

[0005]

According to the above arrangement, the present invention operates as follows. Since a gap whose distance can be adjusted is provided between the transfer body and the first sorting conveyor, the gap is adjusted according to the amount of soil conveyed by the excavation conveyor, and the soil is discharged well. As a result, the amount of soil mixed in the second sorting conveyor is reduced. A vertical partition plate is provided on the first sorting conveyor, and a discharge end is provided on one side partitioned by the vertical partitioning plate at the transport end portion of the first sorting conveyor partitioned by the vertical partitioning plate.
Since the delivery body having the transport path formed on the other side is provided, the harvested agricultural products are moved to the transport path side to be sent to the second sorting conveyor, and the soil is discharged from the discharge port. Since the vertical partition board can be moved and adjusted to the left and right,
The vertical partition is moved and adjusted according to the amount of harvested agricultural products.
The harvested agricultural products can be sent smoothly to the sorting conveyor. Since the rake portion is provided on the delivery body, the soil can be dropped well.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be specifically described below with reference to the accompanying drawings. 2 to 4, reference numeral 1 is a potato harvester, and the potato harvester 1 is equipped with crawlers 3 and 3 which are paired to the left and right of the body 2 and which are capable of spin rotation. An engine 4 is mounted on the body 2 in front of the crawlers 3, 3, and a generator, a hydraulic pump, etc. (not shown) driven by the engine 4 are mounted near the engine 4. A transmission 5 is provided between the crawlers 3 and 3 at a lower position on the front side of the body 2. Also, from the lower front of the fuselage 2 to the upper center of the fuselage through the transmission 5 and to the upper center of the fuselage, a digging conveyor device 6 that excavates the vegetation cultivated in the field and conveys it rearward is provided. The conveyor device 6 has a front end portion pivotally supporting a base end portion so as to be vertically movable. A control unit 7 is provided on the other side of the body 2 opposite to the engine 4.

The digging conveyor device 6 has digging blades 9 attached to the front ends of left and right side frames (frames) 8 and 8 and link rods between the side frames 8 and 8, and slats are provided at predetermined intervals. An excavating conveyor 10 is wound, and a lower end side of the slant is rotatable up and down around a turning part 10a at an upper end of the excavating conveyor.
The vertical movement adjustment, that is, the adjustment of the digging depth is performed by the expansion and contraction of the digging depth, and the digging conveyer 10 can be folded to the fuselage side from the middle of the side frames 8, 8. The folding and unfolding operations are performed by the hydraulic cylinder 12. The moving speed of the digging conveyor 10 can be adjusted steplessly or stepwise. The brackets 13, 13 projecting forward from the left and right side frames 8, 8 are provided with a ridge follower 14, which follows the machine body along the length of the ridge to be harvested.

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, facing each other. It is supported so that it can be adjusted up and down and can be adjusted left and right by slide mechanisms 17 and 17. The pair of wheels 15, 15 have a camber angle. The side frame 8 of the excavating conveyor device 6 is provided with a power connecting / disconnecting mechanism (not shown) near the folded portion thereof. On the side of the excavating conveyor device 6, an auxiliary worker boarding device 18 on which an auxiliary worker who performs pre-processing of the harvested and conveyed crop is mounted. The auxiliary worker boarding device 18 includes a step 18a, a vertically adjustable and rotatable seat 18b, and a handrail 18c, and can be detached when unnecessary.

A second conveyor 19, which is a sorting conveyor of a rod (bar) conveyor type, is provided so as to be continuous behind the excavating conveyor device 6. As shown in FIG. 1, a vertical partition plate 37 is fixedly provided upright on the guide plate 38 of the delivery body 31 on the upper surface of the transfer end portion of the second conveyor 19. A discharge port 39 is formed at the rear end on one side partitioned by the vertical partition plate 37, and the guide plate 38 is provided at the rear end on the other side to form a conveyance path. The guide plate 38 is supported so as to be movable back and forth and left and right with respect to the machine body. When the guide plate 38 is moved back and forth, the gap 40 between the transport end of the second conveyor 19 changes, and when it is moved left and right. The vertical partition plate 37 moves left and right to change the left and right partition widths of the second conveyor 19. Further, the transfer body 31 is provided with a rake portion 41.

At the rear end of the second conveyer 19, the third conveyer 3 which is a rope conveyer type selecting conveyer via the guide plate 38 of the transfer body 31 and the rake portion 41.
3 are connected. The rake portion 41 is vibrated up and down, and the tip of the rake portion 41 is arranged so as to be in contact with the third conveyor, and the vibration of the rake portion 41 vibrates each rope of the third conveyor 33 in the vertical direction. You can do it. Below the third conveyor 33 and at the end of conveyance, the containers 32, 3 placed on the harvesting device 25 are installed.
Each opening of 2 is faced.

On one side of the second conveyor 19 in the transfer direction, a worker boarding device 20 on which a worker performing a steering operation and a sorting operation of the steering unit 7 is mounted, and a worker performing a sorting operation on the other side is mounted. A sorting operator boarding device 21 is provided. A clutch lever 22 operable in conjunction with a traveling clutch lever provided on the control unit 7 and a clutch lever of the excavating conveyor 10 is provided near the sorting operator boarding device 21. The two boarding devices 20 and 21 are respectively provided with steps 20a and 21a and a vertically adjustable and rotatable seat 2 respectively.
0b and 21b. Further, handrails 23, 23 also serving as strength members of the body 2 are provided at front positions of the boarding devices 20, 21 facing the sorting conveyor 19.

Sorting conveyor 33 as a third conveyor
Can be easily exchanged for another type having a different sorting form as required. However, the rope type conveyor 33 of this embodiment is provided between the left and right side frames 34, 34.
A large number of ropes 35 are wound at a predetermined interval between a pair of front and rear pulleys. A large number of short horizontal bars 36, 36, ... Are fixed at predetermined intervals to every other rope 35, 35. Each of the horizontal bars 36 is made of a flexible material, and an adapter made of an elastic body such as rubber may be detachably provided on the horizontal bars 36.

The harvester mounting device 25 provided behind the third conveyor 33 is a loading platform on which a plurality of containers 32 containing harvested products can be mounted, and can be adjusted up and down by changing the front end of the aircraft. It is also possible to rotate around a front end and to be displaced between a use state protruding rearward of the fuselage and a storage state standing upright on the fuselage side. Then, a plurality of containers 32 are arranged to accommodate the harvested products. Although not shown, the two boarding devices 20,
An overhang is provided at steps 20a and 21a of 21,
A container for storing the harvested product may be placed.

A bridging frame 26 is provided so as to extend over the second conveyor 19 and the digging conveyor 10 so as to extend the handrails 23, 23.
6 is provided with lights 27 for illuminating both the front and rear directions of the fuselage. A parasol attachment seat 2 is attached to the distal end of a support arm 28 having a base end fixed to the straddle frame 26 and extending rearward.
A parasol 30 is tiltably and fixedly supported in all directions in all directions. The umbrella 30 is used to shade a worker sitting on the worker boarding device 20 and the sorting worker boarding device 21, and a fan or a radio may be attached to the support of the parasol 30.

The transmission 5 which receives power from the engine 4 and shifts is provided with a continuously variable hydraulic transmission (HST) (not shown) for continuously changing the speed. The transmission is connected through a side clutch and a differential device.
Then, the crawlers 3 and 3 are driven to change speed between stepless and stepped. A brake device is also provided in association with the differential device. Then, when the steering lever is largely operated, the side clutch, the differential mechanism, and the brake are operated to spin the aircraft.

Also, as described above, the excavating conveyor 10
The traveling speed can be adjusted between stepless and stepped, and the excavation work speed can be freely set by combining this with the stepless or stepped traveling of the crawlers 3. When the potato harvesting machine 1 is not in use, the excavating conveyor device 6 moves the entire excavating conveyor device 6 to the rotating portion 10a.
, Or as shown in Fig. 3, fold the tip side part to rotate to the machine side for storage, shorten the machine's front-rear length and load it on the carrier of a light truck for transportation. In addition, it can be stored in a warehouse, etc., and the headland can be turned in a small area.

Next, the operation of the peach harvester 1 configured as described above will be described. For example, when harvesting root vegetables such as sweet potatoes, potatoes, onions, beets, taro, konjac potatoes, short root carrots, and lucky roots from the field, the potato harvester 1 harvests the wheels 15 and 15 of the ridge following device 14. Excavation conveyor device 6
The excavating blade 9 is moved up and down by a hydraulic cylinder 11 to adjust the excavating depth, and the harvest is dug by the excavating blade 9 by advancing the fuselage. Lift the aircraft diagonally upward. During this transportation, the soil falls from between the link rods, and a worker sitting on the auxiliary worker boarding device 18 performs a pretreatment for removing vines, foliage, large lumps, stones, and the like other than root vegetables.

Only the root vegetables out of the harvested products discharged onto the second conveyor 19 from the transport end of the digging conveyor 10 are handrailed by the operator sitting on the operator boarding device 20 and the sorting operator boarding device 21. , 23, and is conveyed to the one side (the guide plate 38 side) in the moving direction of the second conveyor 19 and is conveyed to the third conveyor 33 through the guide plate 38 and the rake portion 41 from the conveying end. . The soil and contaminants remaining on the other side (the discharge port 39 side) in the moving direction of the second conveyor 19 are discharged from the discharge port 39 to the field. The guide plate 38 is moved back and forth and left and right to change the interval of the gap 40 and the left and right partition widths of the vertical partition plate 37 according to the amount of crops and soil. In the third conveyor 33, the root vegetables are ropes 35, 35.
, And the horizontal bars 36, 36 are sorted while being transported, and small root vegetables are dropped into the container 32 below, and the remaining medium and large root vegetables are stored in the container 32 in front of the transportation end. To house.

Here, the potato harvester 1 has an engine 4, a transmission 5, and an operation unit (operation system) 7 arranged in front of crawlers (traveling devices) 3, 3, and an operator boarding device in the rear. 20, by disposing the sorting operator boarding device 21 and the crop mounting device 25, the front-back, left-right balance of the body 2 is improved, and workability and work accuracy are improved.
The traveling performance, turning performance, and stability of the body 2 are improved. In addition, the traveling device (the crawlers 3 and 3) is configured to be capable of spin turning, and the transmission 5 is disposed at the center of the front side of the fuselage. You can turn with good balance. Therefore, the crawlers 3 and 3 do not greatly scrape the soil of the field.

A ridge follower 14 is provided in front of the excavating conveyor device 6 to follow along with the movement of the machine body along the longitudinal direction of the ridge to be harvested, and a pair of wheels which are in rolling contact with the inclined shoulders of the ridge to be harvested. 15 are opposed to each other and supported so as to be vertically adjustable and horizontally adjustable with respect to the excavating conveyor device 6, so that both wheels 15 automatically follow the ridge to be harvested and automatically steer the fuselage. Automatic excavation / conveyance by the take-up conveyor device 6 is performed. Therefore, the worker sitting on the worker boarding device 20 can spend most of his or her time on the sorting work except for the operation of steering the machine at the ridge end of the ridge to be harvested. Further, when the headland turning is performed at the field end, the excavating conveyor device 6 can be folded with the hydraulic cylinder 12 to turn with a small turning radius together with the spin turning of the crawlers 3.

It should be noted that the potato harvester 1 of the present invention can be used not only for potato harvesting work, but also for collecting unoccupied empty cans, empty bottles, wood chips, and the like, for example, on coasts and dunes. Can be. In this case, the ridge following device 14 may be removed or the device may function as a device for adjusting the digging depth of the digging blade 9. Further, the second conveyor 19, the vibrating transfer body 31 and the third sorting conveyor 33 can be used not only as the potato harvester 1, but also as a stationary sorting device.

[0022]

As described above, according to the agricultural product harvester of the present invention, the following effects can be obtained. Since a gap whose distance can be adjusted is provided between the delivery body and the first sorting conveyor, the gap distance is adjusted according to the amount of soil conveyed by the excavation conveyor, and the soil is discharged well. Therefore, it is possible to reduce the mixing of soil into the second selection conveyor. A vertical partition plate is provided on the first sorting conveyor, and a discharge end is provided on one side partitioned by the vertical partitioning plate at the transport end portion of the first sorting conveyor partitioned by the vertical partitioning plate.
Since the delivery body having the transport path formed on the other side is provided, the harvested agricultural products can be sent to the second sorting conveyor by moving to the transport path side, and the soil can be discharged from the discharge port to improve the sorting efficiency. Since the vertical partition board can be moved and adjusted to the left and right,
The vertical partition plate can be moved to the left and right according to the amount of harvested agricultural products, and the harvested agricultural products can be smoothly fed to the second sorting conveyor. Since the transfer body is provided with the rake portion, the soil can be dropped well, and the sorting efficiency by the second sorting conveyor can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part of an agricultural product harvester according to the present invention.

FIG. 2 is a plan view of the whole legume harvester to which the present invention is applied.

FIG. 3 is a side view of the same.

FIG. 4 is a perspective view of the same.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Potato harvester 2 Body 3 Crawler 4 Engine 5 Transmission 6 Digging conveyor device 7 Operating part 8 Side frame (frame) 9 Digging blade 10 Digging conveyor 10a Rotating part 11 Hydraulic pressure for vertical movement adjustment of digging conveyor device Cylinder 12 Hydraulic cylinder for folding of excavating conveyor device 13 Bracket 14 Ridge following device 15 Wheel 16 Vertical adjustment mechanism 17 Slide mechanism 18 Auxiliary worker boarding device 18a Step 18b
Seat 19 Second conveyor (sorting conveyor) 20 Operator boarding device 20a Step 20b Seat 21 Sorting operator boarding device 21a Step 21b
Seats 22 Clutch levers 23 Handrails that also serve as strength members 24 Spaces 25 Harvesting equipment 26 Crossing frames 27 Lights 28 Support arms 29 Parasol mounting seats 30 Parasols 31 Passengers 32 Containers 33 Third conveyor (rope type selection conveyor) 34 Side frame 35 Rope 36 Horizontal bar 37 Vertical partition plate 38 Guide plate 39 Discharge port 40 Gap 41 Rake-shaped part

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Koji Morikawa 684 Nakatate, Okayama City, Okayama Kobashi Industrial Co., Ltd. 72) Inventor Hisayoshi Tokunaga 684 Nakamata, Okayama City, Okayama Prefecture Kobashi Kogyo Co., Ltd. (56) References: Kaihei 1-109920 (JP, U) Shokai 59-52821 (JP, U)

Claims (4)

(57) [Claims] 1. A self-propelled agricultural product provided with a digging conveyor for digging and transporting agricultural products vegetated in the field and a sorting conveyor for sorting, from the front to the rear of the center of the airframe between the left and right traveling devices. In the harvester, a plurality of sorting conveyors are continuously provided, a delivery body is provided between at least the first sorting conveyor and the second sorting conveyor, and between the delivery body and the first sorting conveyor. , Agricultural products harvesting machine characterized by having a gap adjustable. 2. A vertical partition plate is provided on the first sorting conveyor, and a discharge end is provided on one side partitioned by the vertical partitioning plate at a transport end portion of the first sorting conveyor partitioned by the vertical partitioning plate. The agricultural product harvesting machine according to claim 1, further comprising a delivery body having a conveyance path formed on the other side. 3. The agricultural product harvesting machine according to claim 1, wherein the vertical partition plate is movable and adjustable in the left-right direction. 4. The agricultural product harvesting machine according to claim 1, wherein the delivery body is provided with a rake portion.