JP2843848B2 - Agricultural harvester - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to, for example, sweet potatoes, potatoes,
The present invention relates to an agricultural product harvester that harvests root vegetables such as onions, beets, taro, konjac potatoes, short root carrots, and raccoons from a field, and simultaneously sorts them.

[0002]

2. Description of the Related Art Conventionally, as an agricultural product harvesting machine which harvests and sorts root crops from a field, a sorting conveyor is provided continuously with a digging conveyor, and a large number of sorting conveyors are provided between front and rear pulleys. A rope conveyor type is proposed in which the ropes are wound at predetermined intervals, and the selected agricultural products are supplied and moved on the ropes while being sorted.

[0003]

In the case where the sorting conveyor is provided continuously with the above-mentioned excavating conveyor, the agricultural product which has been conveyed is caught between the excavating conveyor and the sorting conveyor, and is damaged or damaged. There was a problem that agricultural products stayed or the conveyor was stopped. Also, in the rope conveyor type sorting device, sorting is performed mainly according to the size of the agricultural products to be sorted, but when the agricultural products are supplied in a group or together with soil, the agricultural products are separated in the transportation process. Insufficient sorting may result in poor sorting. For this reason, the present applicant has proposed a type in which each rope is vibrated up and down, or a type in which each rope is vibrated left and right. . However, in order to vibrate each rope, a dedicated vibration device is required, and there has been a problem that the configuration is complicated. The present invention has been made to solve the above problems.

[0004]

In order to achieve the above object, the present invention provides: A sorting device or a preparation device comprising a rope-shaped conveyor in which a large number of horizontal bars 36a are attached to a plurality of ropes 36 is used as a third conveyor 33 of the agricultural harvester, and a rake-like device is provided between the third conveyor 33 and the second conveyor. Delivery body 3
1, the transfer body 31 is configured to be capable of vibrating in the vertical direction, and the leading end of the transfer body 31 is disposed so as to be in contact with the horizontal bar 36a of the third conveyor 33. B. vibrating the third conveyor 33; The transfer body 31 is provided with a rear support shaft 38 of the second conveyor.
The vibrating device 45 is vibrated by a vibrating device 45 provided at one end of the second conveyor, and the vibrating device 45 is provided integrally with the support member 40 of the rear support shaft 38 of the second conveyor. I do.

[0005]

According to the above construction, the agricultural harvester of the present invention has
The following actions are performed. . A sorting device or a preparation device composed of a rope-shaped conveyor in which a number of horizontal bars 36a are attached to a plurality of ropes 36 is used as a third conveyor 33 of the agricultural harvester, and a rake-shaped device is provided between the third conveyor 33 and the second conveyor. Delivery body 3
1, the transfer body 31 is configured to be able to vibrate up and down, and the leading end of the transfer body 31 is disposed so as to contact the horizontal bar 36a of the third conveyor 33. Since the third conveyor 33 is caused to vibrate, entrainment of the agricultural product between the third conveyor 33 and the second conveyor is eliminated, and the delivery of the agricultural product becomes good due to the vertical vibration of the transfer body 31, and the accumulation of the agricultural product is reduced. And the soil is sorted well. In addition, a vibrating device for vibrating the third conveyor (rope conveyor) 33 is not required, and the sorting performance of the third conveyor 33 and the transfer body 31 is improved while the configuration is simplified.

[0006] The transfer body 31 is vibrated by a vibration device 45 provided at one end of a rear support shaft 38 of the second conveyor, and the vibration device 45 is driven by the rear support shaft 3 of the second conveyor.
8 is provided integrally with the support member 40, the structure of the vibration generator 45 of the transfer body 31 is simplified, and even when the tension of the support shaft 38 of the second conveyor is adjusted, the vibration generator of the transfer body 31 is adjusted. 45 is not affected.

[0007]

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 denotes a potato harvester. The potato harvester 1 is provided with crawlers 3 and 3 which form a left-right pair on a body 2 and which enable super turning. 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, 8 and link rods between the side frames 8, 8, and slats are provided at predetermined intervals. The excavating conveyor 10 is wound, and the lower end side of the slant is rotatable up and down around the turning part 10a at the upper end part of the excavator, and the hydraulic cylinder 11 provided between the machine body 2 and the side frames 8
The vertical movement adjustment, that is, the adjustment of the excavation depth is performed by the expansion and contraction operation of the excavation, and the excavation conveyer 10 can be folded from the middle of the side frames 8, 8 to the machine body side. 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.

This 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 excavated and conveyed products is arranged. The auxiliary worker boarding device 18 includes a step 18a, a vertically adjustable and rotatable seat 18b, and a handrail 18c, and is detachable when unnecessary.

A second conveyor 19, which is a sorting conveyor of a rod (bar) type, is disposed at a rear portion of the fuselage behind the digging conveyor device 6, and the second conveyor 19 is provided.
A rake-like transfer body 31 vibrating in the vertical direction is provided at the transfer end of the cradle, and is connected to a third conveyor 33 which is a rope conveyor type sorting conveyor. Delivery body 3
The leading end of the first conveyor 1 is disposed so as to be in contact with the third conveyor, and each rope of the third conveyor 33 vibrates in the vertical direction by the vibration of the transfer body 31. The openings of the containers 32, 32 placed on the crop mounting device 25 face the lower part of the third conveyor 33 and the transport end.

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.
As shown in FIG. 1, a pair of front and rear pulleys 35, 35 are pivotally supported, and a number of ropes 36 are wound between the pulleys 35, 35 at predetermined intervals. A number of short horizontal bars 36a, 36a... Are fixed at predetermined intervals to every other one of these ropes 36, 36. The pulley 35, the horizontal bar 36a is not provided among the ropes 36,
35, the side frames 34, 3
The tension is applied by a tension roller 37 supported by 4, and the vertical distance between the ropes 36 is reduced.

A cam wheel 39 is fixed to the outer periphery of one end of the rotary shaft 38 of the rear pulley of the second conveyor 19 with its cam surface facing outward. Opposed to the cam surface of the cam wheel 39, a swing arm 42 of a vibration generating mechanism of the transfer body 31 is mounted on a side frame 40 of the
1, a tension spring 43 is supported between the lower end of the swing arm 42 and the side frame 40.
And a cam roll 44 pivotally supported by the swing arm 42 is brought into contact with the cam surface of the cam wheel 39. And
A transfer body vibrating arm 45 in which the transfer body 31 is connected to the swing arm 42 is connected to the transfer body 31 to vertically vibrate, and the ropes 36 of the third conveyor 33.
Vibrates up and down.

The crop loading device 25 provided behind the third conveyor 33 is a loading platform on which a large number of containers 32 accommodating crops can be loaded, and can be adjusted up and down by changing the front end of the body. 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, as shown in FIG. 3, a plurality of containers 32 are arranged side by side to accommodate the harvest. Also, as shown in FIG.
An auxiliary table 25a and a resilient mechanism 25b whose support attitude gradually changes depending on the weight of the crops stored in the container 32 may be provided. Although not shown, overhangs may be provided at the steps 20a and 21a of the boarding devices 20 and 21 so that containers for storing harvested products can be placed.

A straddling frame 26 extending above the second conveyor 19 and the digging conveyor 10 is provided 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 has a hydraulic continuously variable 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. Further, a brake device is provided in connection with the differential device. When the steering lever is largely operated, the side clutch, the differential mechanism, and the brake are actuated to turn the airframe in a super pivot.

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, the front end part can be folded and turned to the fuselage side to put it in the stowed state, the length of the fuselage can be shortened, and it can be loaded on the light truck carrier and transported. In addition, it can be stored in a warehouse or the like, and the headland turning can be performed in a small area.

Next, the operation of the thigh 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 raccoons from a 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 crops of the harvest discharged from the transporting end of the excavating conveyor 10 onto the second conveyor 19 are
A worker sitting on the operator boarding device 20 and the sorting operator boarding device 21 sorts through the handrails 23 and 23, conveys it to one side in the moving direction of the second conveyor 19, and vibrates from the conveyance end. It is sent to the third conveyer 33 via 31. In the third conveyor 33, potatoes are rope 3
While being conveyed while being supported and transported by the horizontal bars 36a, 36a, the transfer body 31 causes the soil and small potatoes to fall, and the remaining medium and large potatoes fall in the lower container 32. Is the container 3 in front of the transport end
2 housed.

Here, the potato harvester 1 has an engine 4, a transmission 5, and an operation unit (operation system) 7 disposed 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 (crawlers 3 and 3) is configured to be able to make a super pivot turn, and the transmission 5 is disposed at the front center portion of the fuselage. You can turn in a well-balanced direction. 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 the ridge along the length of the ridge to be harvested along with the movement of the fuselage, 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 the 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 super turning of the crawlers 3 and 3.

The potato harvester 1 of the present invention can be used not only for potato harvesting, but also for collecting unoccupied empty cans, empty bottles, wood chips, etc., for example, on the coast or in dunes. Can be done. 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 apparatus.

[0023]

As described above, according to the agricultural product harvester of the present invention, the following effects can be obtained. . A sorting device or a preparation device composed of a rope-shaped conveyor in which a number of horizontal bars 36a are attached to a plurality of ropes 36 is used as a third conveyor 33 of the agricultural harvester, and a rake-shaped device is provided between the third conveyor 33 and the second conveyor. Delivery body 3
1, the transfer body 31 is configured to be able to vibrate up and down, and the leading end of the transfer body 31 is disposed so as to contact the horizontal bar 36a of the third conveyor 33. Since the third conveyor 33 is caused to vibrate, the agricultural products are not caught between the third conveyor 33 and the second conveyor, and the delivery of the agricultural products to the third conveyor 33 is excellent due to the vertical vibration of the transfer body 31. Done. In addition, there is no stagnation of agricultural products between the third conveyor 33 and the second conveyor, and soil sorting is particularly well performed. Further, a vibration generator for vibrating the third conveyor (rope conveyor) 33 is not required, the configuration is simplified, and the performance of sorting the third conveyor 33 and the transfer body 31 can be improved.

[0024] The transfer body 31 is vibrated by a vibration device 45 provided at one end of a rear support shaft 38 of the second conveyor, and the vibration device 45 is driven by the rear support shaft 3 of the second conveyor.
Since it is provided integrally with the support member 40 of FIG. 8, the structure of the vibration generator 45 of the transfer body 31 is simplified. Further, even if the tension of the second conveyor is adjusted, the vibration generator 45 of the transfer body 31 is not affected.

[Brief description of the drawings]

FIG. 1 is a side view of a transfer body and a third conveyor part according to the present invention.

FIG. 2 is a plan view of the entire potato harvester according to the present invention.

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 a digging 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 (bar type sorting conveyor) 20 Operator boarding device 20a Step 20b Seat 21 Sorting operator boarding device 21a Step 21b
Seat 22 Clutch lever 23 Handrail serving also as a strength member of the body 24 Space 25 Harvester mounting device 25a Auxiliary stand 25b Resilient mechanism 26 Crossover frame 27 Light 28 Support arm 29 Parasol mounting seat 30 Parasol 31 Transfer plate 31a Sliding contact rod 31b Branch 32 Container 33 Third conveyor (rope type sorting conveyor)
33a Sorting conveyor 34 Side frame 35 Pulley 36 Rope 36a Horizontal bar 37 Tension roller 38 Rotation axis of rear pulley 39 of second conveyor 39 Cam wheel 40 Side frame 41 of second conveyor 41 Shaft 42 Swing arm 43 Tension spring 44 Cam roll 45 Delivery body Vibrating arm

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Toru Abe 684 Nakahane, Okayama City, Okayama Prefecture Inside Kobashi Kogyo Co., Ltd. (56) References Shiro 59-83310 (JP, U) Shiro 61-2016 (JP, U) Japanese Utility Model Showa 57-94326 (JP, U) Japanese Utility Model Showa 53-100451 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) A01D 13/00-33 / 14

Claims (2)

(57) [Claims] 1. A plurality of ropes (36) with a number of transverse bars.
A sorting device or a preparation device comprising a rope-shaped conveyor to which (36a) is attached is connected to a third conveyor of an agricultural harvester.
(33), and a third conveyor (33) rake-like transfer member (31) provided between the second conveyor, and can vibrate configured the transfer body (31) in the vertical direction, and該渡
The tip of the body (31) is the horizontal bar of the third conveyor (33).
(36a), and the delivery body (31)
An agricultural product harvester characterized in that the third conveyor (33) is vibrated by the vibration of (1) . 2. The delivery body (31) is a second conveyor.
The vibrating device (4) provided at one end of the rear support shaft (38)
The vibrating device (45) is vibrated by 5).
Integrated with support member (40) on rear support shaft (38) of conveyor
The agricultural product harvester according to claim 1, wherein the agricultural product harvester is provided .