JPH05168321A - Harvester of agricultural product - Google Patents

Abstract

PURPOSE:To obtain the subject harvester traveling in good trafficability even in a field on a relatively small scale by driving a crawler traveling device by stepless speed change mechanism, a differential mechanism with a brake and a traveling speed change mechanism with a brake. CONSTITUTION:A crawler traveling device 3 is driven by a stepless speed change mechanism 30, a differential mechanism 33 with a brake 35 and a traveling speed change mechanism 31 with a brake. The crawler traveling device can be turn within an extremely narrow part.

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, and ginseng.

[0002]

2. Description of the Related Art Conventionally, as an agricultural product harvester for harvesting root vegetables, for example, a potato harvester, a beat harvester, a potato digger, a riding tractor or a walk-behind tractor with a digging blade attached, There are known those in which a link rod chain conveyor is mounted at the rear portion, those in which the link rod chain conveyor is vibrated, and the like.

[0003]

The above-mentioned potato harvester, beet harvester, potato digger, etc. are large like imported products and are suitable for use in a large-scale field such as Hokkaido, but are small in scale. It was not suitable for use in various fields, and it was a specialized machine with poor versatility. In addition, small ones such as those equipped with a digging blade on a riding tractor or a walk-behind tractor, those equipped with a link rod chain conveyor at the rear of the digging blade, those adapted to vibrate the link rod chain conveyor, etc. Although it was developed so that it can be used in various fields, it only digs the root vegetables as described above and releases them to the field. There is a problem in work efficiency that it requires a work process to be performed.In addition, in the case of a riding type, these working machines are attached to a normal riding tractor as a so-called attachment and work. , The turning performance of the aircraft is poor, the work accuracy is poor,
When the tractor is of the crawler type, the steering operation is performed by two operation levers, so that there is a problem that the operation is complicated. The present invention has been made to solve the above problems.

[0004]

In order to achieve the above-mentioned object, the present invention provides an agricultural product harvester in which a traveling machine equipped with a crawler traveling device is equipped with a harvesting device for harvesting agricultural products vegetated in a field. , The crawler traveling device of the traveling machine body,
It is configured to be driven by a continuously variable transmission mechanism provided on the traveling body side, a differential mechanism having a brake, and a traveling transmission mechanism with a brake, and it is possible to perform a super-spinning turn. The steering device is configured to perform the steering operation by one steering handle. The harvesting device is provided with a digging conveyor at least at the rear part of the digging blade, and the rotation speed of the digging conveyor is continuously or steplessly changed. Each is characterized by being adjustable so that the combination with the vehicle speed can be freely set.

[0005]

The present invention having the above-described structure has the following functions. Since the crawler traveling device of the traveling machine body is driven by a continuously variable transmission mechanism provided on the traveling machine body side, a differential mechanism having a brake, and a traveling transmission mechanism with a brake, it is possible to perform super-spot turning, so The harvesting work can be performed efficiently even in a small field. Since the steering operation of the crawler traveling device is performed by one steering handle, the steering operation is facilitated and the super-spot turning can be easily performed. The harvesting device is provided with a digging conveyor at least at the rear of the digging blade, and the rotation speed of the digging conveyor is configured to be continuously variable or stepwise variable so that the combination with the vehicle speed can be freely set. Therefore, the rotation speed of the digging conveyor can be adjusted according to the field conditions, the state of the agricultural products vegetated in the field, and the like, so that proper harvesting work can be performed.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be specifically described below with reference to the accompanying drawings. 1 to 3, reference numeral 1 denotes a potato harvester, and the potato harvester 1 has a machine body 2 equipped with a crawler 3, an engine part 4 is provided on one side of the machine body 2, and a fuel tank is provided on the upper side thereof. 4a is provided. In addition to the engine, the engine unit 4 is equipped with a generator driven by the engine, a hydraulic pump, and the like (not shown). A steering section 5 is provided behind the engine section 4, and a steering seat / working seat 6 is provided further behind the steering section 5. An excavation conveyor device 7 is provided, which digs agricultural products from the lower front of the machine body 2 to the upper center of the machine body and conveys the agricultural products backward, so that the tip side is inclined so as to descend.

The excavation conveyor device 7 has excavation blades 9 attached to the tip ends of the left and right side frames (frames) 8 and a excavation conveyor 10 composed of a link rod between the side frames 8 and 8.
The lower end side of the tilt is vertically rotatable around the pivoting part 10a of the upper end of the tilt, and the hydraulic cylinders 11, 11 provided between the machine body 2 and the side frames 8, 8 are expanded and contracted to move up and down. Dynamic adjustment, that is, adjustment of the digging depth is performed. The moving speed of the digging conveyor 10 can be continuously and steplessly adjusted. Further, the brackets 12, which protrude forward from the left and right side frames 8, 8,
The ridge follower 13 is provided at 12 to follow the movement of the machine body along the length direction of the ridge to be harvested.

The ridge-following device 13 is provided with a pair of wheels 14 and 14 which are in contact with each other on the inclined shoulders of the ridge to be harvested so as to face each other. It is supported so that it can be adjusted up and down and that it can be moved left and right by the slide mechanisms 16 and 16. The pair of wheels 14 and 14 have a camber angle and a toe-in. At the side of the digging conveyor device 7, an auxiliary worker's seat 17 for selecting the harvested products conveyed by the digging conveyor 10 is detachably provided. A flat belt-shaped selection conveyor device 18 for carrying out a selection operation while placing and transferring the harvested product is provided at the rear position of the machine body behind the digging conveyor device 7, and the transfer of the selection conveyor device 18 is performed. Sorting work can be performed on both sides in the direction.

The pilot seat / working seat 6 faces the control part 5 and is located on the side of the sorting conveyor device 18, and the operator is placed on the opposite side of the pilot seat / working seat 6. The operator seat 19 and the step 20 are provided, and the operator sitting on the pilot seat / work seat 6 can perform both the pilot work and the sorting work at the same position. A control section step 5a and a sorting step 21 are provided on the lower part of the fuselage. The pilot seat / working seat 6, the auxiliary worker seat 17, and the worker seat 19
Can be rotated in place and height and slide adjustable. In addition, the above steps 20 and 21
Is configured to be displaceable (foldable) between a used state and a non-used state, and is configured to fit within the width of the machine body 2 at least when not in use.

In the vicinity of the operator's seat 19, the traveling clutch lever provided on the control section 5 and the digging conveyor 10 are provided.
A clutch lever 22 that can be operated in conjunction with the clutch lever of is provided, and can be operated from both left and right sides of the aircraft,
It is possible to operate the traveling clutch and the clutch of the digging conveyor. A rake-shaped sieve line 23 shown in FIGS. 2 and 16 is provided below the terminal end of the sorting conveyor device 18. In addition, behind the selection conveyor device 18, a loading platform 24 for placing a container (for example, a container) for storing harvested agricultural products is projected from the machine body 2 to the outside, and a storage state for accommodating the machine body 2 side. It is provided so that it can be folded. The loading platform 24 is detachable from the machine body 2,
Further, it may be provided so as to be adjustable up and down.

As shown in detail in FIGS. 14 to 16, the cargo bed 24 is tilted (rotated) to a position projecting from the upper surface of the cargo bed 24 and a position below the upper surface of the cargo bed 24 on the outer peripheral portion thereof. ) The left and right side frames 24a, 24a and the rear side frame 24b which can be held at the respective positions are provided. Toggle (rotate) these side frames 24a, 24b between a position projecting from the upper surface of the loading platform 24 and a position lower than the upper surface of the loading platform 24, and hold the toggle springs 2a and 2b in their respective positions.
5 are provided. In the embodiment shown in FIG. 1, the control unit 5
Although the steering levers 26, 26 are provided in the above, the steering handle 27 shown in FIGS. 5 and 6 may be provided in place of the steering levers 26, 26.

The transmission 28 and the steering operation section 29 will be described with reference to FIGS. 4 and 5. The transmission 28 is
Receives power from the engine 4 via the belt transmission system 4b,
A transmission gear 31 is attached to an output shaft 30a of a hydraulic continuously variable transmission (HST) 30 that continuously changes gears so that the gear can be continuously and steplessly changed, and a side clutch 32 is used as a clutch operating arm 32a and a clutch operating rod. 32b is operated to connect / disconnect power transmission to the crawler drive shafts 34, 34 via the differential device 33 so that the crawlers 3, 3 travel continuously and steplessly. Further, a brake device 35 is provided in association with the differential device 33, and is operated by a brake operation arm 35a and a brake operation rod 35b.

In the steering operation section 29, a steering shaft 27a to which a steering handle 27 is connected is connected to a tight arm 36 via an operating gear 27b, and the tight arm 36 is connected to the clutch operating rod 32b. Cams 37, 37 are formed at the rear part of the tight arm 36, and cam followers (rollers) 38, 38 are provided on the cams 37, 37, which selectively come into contact with the steering handle 27 when the steering handle 27 is largely turned left or right. The brake operating rod 35b is connected to the cam followers 38, 38. Then, when the steering handle 27 is largely turned to the left or right, the side clutch 32, the differential mechanism 33, and the brake 35 are actuated so as to turn the airframe in a supercritical position.

Further, as described above, the digging conveyor 10
The movement speed of the crawler can be adjusted continuously and stepwise, and by combining this with the stepless or stepwise traveling of the crawlers 3 and 3, the digging work speed can be freely set. When the potato harvester 1 is not in use, the digging conveyor device 7 rotates the digging conveyor device 7 as a whole, or, as shown in FIG. 7, bends the tip side portion at a substantially intermediate position in the longitudinal direction. Then, it can be stored by rotating it to the side of the machine, and the length of the machine is shortened so that it can be carried by loading it on the carrier of a light truck, and can be stored in a warehouse. As shown in FIG. 13, in the digging conveyor 10, a cylindrical body 10c made of an elastic body is rotatably fitted on at least the outer periphery of the carrying rod 10b.

As shown in FIG. 8, the sorting conveyor device 18 is divided into a delivery conveyor 18a and a sorting conveyor 18b which are continuously provided so that the moving speed of the delivering conveyor 18a is faster than the moving speed of the sorting conveyor 18b. It may be configured as. The pilot seat and work seat 6 above
As shown in FIGS. 9 to 11, the operator's seat 19 has a pivotable backrest, and can be used as both a backrest and a seat so that the operator can sit and stand. Any of these may be configured as a driver's seat / working seat 6a and a worker's seat 19a capable of performing sorting work. Further, as shown in FIG. 12, a turning type backrest and a seat / type vertical seat / working seat 6b and a worker's seat 19b may be used. Both types of seats are capable of in-situ rotation, height adjustment and slide adjustment.

As shown in FIGS. 9 and 10, a column mounting seat 39 is provided on the side of the machine body so that the angle and height can be adjusted.
Attach the pillar of the parasol 40 to this mounting seat 39,
The operator seated on the cockpit / work seat 6, the auxiliary worker seat 17, and the worker seat 19 is shaded. Further, a fan 41 may be attached to the pillar of the parasol 40 and operated by the electric power generated by the generator to send the wind to the worker.
In addition to 1, home appliances such as radios can be used.

Next, the operation of the potato harvester 1 configured as described above will be described. When harvesting root vegetables such as sweet potatoes, potatoes, onions, beets, taro, konjac potato, and ginseng from the field, the potato harvester 1 collects the wheels 14 and 14 of the ridge-following device 13 from the target ridges. Of the digging blade 9 of the digging conveyor device 7
Is adjusted up and down by hydraulic cylinders 11 and 11 to adjust the digging depth, and when the machine body is advanced, the harvested digging blade 9
The digging is carried out by the digging machine, and the digging conveyor 10 conveys the digging material together with the soil and lifts it up diagonally above the body. During this transportation, soil falls between the link rods, and the digging conveyor 10
A worker sitting on the pilot seat / working seat 6 and the operator seat 19 sorts the harvested products discharged from the transport end of the sorting conveyor device 18 into a container (container placed on the loading platform 24). ). The soil and foreign matters remaining on the sorting conveyor device 18 fall into the field from the end of the transportation.

In front of the digging conveyor device 7, there is provided a ridge follower 13 for following the movement of the machine body along the length direction of the ridge to be harvested, and a pair of wheels rolling on both inclined shoulders of the ridge to be harvested. 14 are provided facing each other and are supported so as to be vertically adjustable and horizontally adjustable with respect to the digging conveyor device 7, so that both wheels 14 accurately follow the ridges to be harvested to automatically steer the machine body and dig it. Automatic digging / conveyance is performed by the picking conveyor device 7. Therefore, the operator sitting on the cockpit / working seat 6 can spend most of the time on the sorting work except for the operation of manipulating the machine body at the ridge end of the ridge to be harvested.

Since the sorting operation is performed on both sides of the sorting conveyor device 18 in the transfer direction, the harvested product excavated by the excavation conveyor device 7 can be efficiently sorted. Since the moving speed of the digging conveyor 10 can be steplessly or steplessly adjusted, the moving speed of the digging conveyor 10 is appropriately selected depending on the type of harvest target crop, the harvest amount, the field condition, and the like.
Appropriate work can be done. Sorting conveyor device 18
Since it is a flat belt, it can handle many crops to be harvested,
In addition, there is little danger to the sorter. Sorting conveyor device 1
When 8 is divided into the delivery conveyor 18a and the selection conveyor 18b, the harvested product is delivered from the digging conveyor device 7 more smoothly. Sorting conveyor device 18
Of the contaminants, crops and soil that drop onto the sieve line 23 from the end of the transportation of the soil, the soil falls on the field first between the sieve lines 23, and the harvest product falls on it and is exposed on the soil. Therefore, it becomes easy to collect the harvested product. Corresponding to the cockpit / working seat 6 and the worker's seat 19, steps 20 and 21 are respectively performed.
Since it is equipped with, the sorting work can be performed in a stable posture.

The crawler traveling device 3 of the traveling machine body 2 is provided with a continuously variable transmission mechanism 30 and a brake 35 provided on the traveling machine body 2 side.
Differential mechanism 33 having a drive mechanism 31 with a brake
Since it is driven by, it becomes possible to make a super turning turn, and efficient harvesting work can be performed even in a relatively small field. In addition, when the steering operation of the crawler traveling device 3 is performed by one steering handle 27, the steering operation is easier than the operation by the left and right separate steering levers, and super-spot turning is easy. You can do it. Further, the harvesting device 7 is provided with a digging conveyor 10 at least at the rear part of the digging blade 9, and the rotation speed of the digging conveyor 10 can be continuously and steplessly adjusted so that the combination with the machine traveling speed is possible. Since it can be set freely, the digging conveyor 1 can be used according to the field conditions, the state of agricultural products vegetated in the field, and the like.
By adjusting the rotation speed of 0, proper harvesting work is performed.

At the rear part of the machine body 2, a loading platform 24 for placing a container (container) for storing the harvested agricultural products is put out of the machine body 2 and used in a state of being stored on the machine body 2 side. Since it is provided so that it can be folded,
4 can be used, and the harvested agricultural products can be selected and moved while being stored in a container. Further, when the harvesting work is not performed, the loading platform 24 is put into the stored state so that it does not become an obstacle when moving or storing the harvesting machine. Further, since the side frames 24a and 24b, which can be raised and lowered between the position protruding from the upper surface of the loading platform and the position below the upper surface of the loading platform, and which are held at the respective positions, are provided on the outer peripheral portion of the loading platform 24,
When the container containing the harvested agricultural products is loaded on the loading platform 24, the side frames 24a and 24b are set to the positions projecting from the upper surface of the loading platform 24 to prevent the containers from falling, and the containers containing the harvested agricultural products are loaded on the carrier. Side frame 2 when transferring to a loading platform etc.
By moving 4a and 24b to a position below the upper surface of the loading platform 24, the transfer work can be easily performed.

The control device 5 and the seat 6 are provided on one side toward the rear of the fuselage.
And step 21, the operator seat 19 and step 20 are provided on the opposite side of the control device 5, respectively, so that the operator on the control device 5 side can perform both the control work and the selection work, and the seats 6, 19 are Since it can be rotated on the spot and the height and the slide can be adjusted, the operator sitting on the seat 6 of the control device 5 can easily change the posture between the control work and the selection work, and the operator seat 19 can be changed. A sitting worker can perform sorting work in a comfortable posture. Further, since steps 20 and 21 can be displaced between a used state and a non-used state, and can fit within the width of the machine when not in use, stable sorting work can be performed with steps 20 and 21 in the used state, and when the machine is not in use. It can be moved within the width and stored. Further, the traveling clutch and the clutch of the digging conveyor can be operated from both the left and right sides of the aircraft by the control device 5 and the clutch lever 22.
In an emergency, both left and right workers performing sorting work can run the machine and stop the digging conveyor.
Work can be resumed.

The digging conveyor device 7 is provided with a digging blade 9 on the front side of the digging conveyor 10 and has a rotating portion 1 with respect to the machine body 2.
It is rotatable about 0a, and the digging depth by the digging blade 9 and the conveying angle of the digging conveyor 10 can be freely adjusted. When the digging conveyor device 7 is not used, the whole digging conveyor device or the tip side portion is rotated and stored toward the machine body, and when not used, the digging blade 9 and the digging conveyor 1
By putting 0 into the housed state, the front-rear length of the machine body is shortened, and transportation by a carrier vehicle or the like is facilitated. Also, it does not take up much space when it is stored in a warehouse. Since the tubular body 10c made of an elastic body is rotatably fitted on at least the outer periphery of the transport rod 10b in the digging conveyor 10, the harvested product digged by the digging blade 9 is transported by the digging conveyor 10. During this, the soil conveyed with the harvest drops due to the rotation of the elastic cylinder 10c, and the soil attached to the outer periphery of the harvest also drops.

A generator driven by a prime mover (engine) is mounted on the machine body, and the electric power generated by the generator is used to operate the fan 41, the radio, etc. provided on the machine body. It is good and you can work comfortably. The seats 6, 17, 19 for workers are provided on the machine body, and the parasol mount seats that can adjust the angle and height are provided on the machine body in the vicinity of the machine seats. Improve the working environment. Since the auxiliary worker's seat 17 is detachably provided on the side of the digging conveyor 10, the auxiliary work may be performed depending on the condition of the harvest or the field, and may be removed when unnecessary. Further, when the pilot seat / working seat 6 and the operator's seat 19 are formed as rotating type backrests 6a, 19a, 6b, 19b, it is possible to select whether the operator is sitting or standing. You can work. The potato harvesting machine 1 of the present invention can be used not only for the potato harvesting work but also for the work of collecting abandoned empty cans, empty bottles, wood chips, etc., for example, on the coast or in a dune area. At that time, the ridge-following device 13 may be removed, or the ridge-following device 9 may be operated as a digging depth adjusting device.

[0025]

As described above, according to the agricultural product harvesting machine of the present invention, the following effects can be obtained. Since the crawler traveling device of the traveling machine body is driven by a continuously variable transmission mechanism provided on the traveling machine body side, a differential mechanism having a brake, and a traveling transmission mechanism with a brake, it is possible to perform super-spot turning, so Even in a small-scale field, it is possible to turn with less headland and perform efficient harvesting work. Since the steering operation of the crawler traveling device is performed by one steering handle, the steering operation can be easily performed, fatigue can be reduced, and super-spot turning can be easily performed. The harvesting device is provided with a digging conveyor at least at the rear of the digging blade, and the rotation speed of the digging conveyor is configured to be continuously variable or stepwise variable so that the combination with the vehicle speed can be freely set. Therefore, the rotation speed of the digging conveyor can be adjusted according to the field conditions, the state of the agricultural products vegetated in the field, and the like to perform proper harvesting work.

[Brief description of drawings]

FIG. 1 is a plan view of an entire potato harvester according to an embodiment of the present invention.

FIG. 2 is a side view of the entire potato harvester.

FIG. 3 is a front view of the same.

FIG. 4 is a schematic plan view of a transmission.

FIG. 5 is an explanatory perspective view of a steering operation section.

FIG. 6 is a plan view of the whole potato harvester showing another embodiment of the handle portion.

FIG. 7 is a side view of the entire potato harvester showing the folded state of the digging conveyor device.

FIG. 8 is a side view of the whole potato harvester showing another embodiment of the sorting conveyor device.

FIG. 9 is a plan view of the entire potato harvester showing another embodiment of the seat of the sorting work unit.

FIG. 10 is a side view of the entire potato harvester showing another embodiment of the control unit.

11 (a) and 11 (b) are explanatory views of a seat of a sorting work unit.

12A and 12B are explanatory views of another embodiment of the seat of the sorting work unit.

FIG. 13 is an enlarged sectional view of a digging conveyor.

FIG. 14 is a side view of a loading platform portion.

FIG. 15 is a side view showing a state in which the loading platform is folded.

FIG. 16 is a plan view of a state in which a side frame of the loading platform is tilted down and a sieve line.

[Explanation of symbols]

1 Potato harvester 2 Airframe 3 Crawler 4 Engine part (engine, generator, hydraulic motor) 4
a fuel tank 4b belt transmission system 5 control section 5a control section step 6 control seat and working seat 7 digging conveyor device 8 side frame (frame) 9 digging blade 10 digging conveyor 10a rotating section 10b transport rod 10c elasticity Cylindrical body 11 Hydraulic cylinder 12 Bracket 13 Ridge tracking device 14 Wheel 15 Vertical adjustment mechanism 16 Sliding mechanism 17 Seat for auxiliary worker 18 Sorting conveyor device 18a Delivery conveyor 1
8b Sorting conveyor 19 Worker seat 20 Step 21 Sorting work step 22 Clutch lever 23 Sieve line 24 Loading platform 24a Left and right side frames 24b Rear side frame 25 Toggle spring 26 Steering lever 27 Steering handle 27a Steering shaft 27b Operating gear 28 Gearbox 29 Steering operation part 30 Hydraulic continuously variable transmission (HST) 30a Output shaft 31 Speed change gear 32 Side clutch 32a Clutch operation arm
32b Clutch operation rod 33 Differential device 34 Crawler drive shaft 35 Brake device 35a Brake operation arm 3
5b Brake operation rod 36 Tight arm 37 Cam 38 Cam follower 39 Strut mounting seat 40 Parasol 41 Fan

Claims (3)

[Claims] 1. A produce harvester in which a traveling device equipped with a crawler traveling device is equipped with a harvesting device for harvesting agricultural products vegetated in a field, wherein the crawler traveling device of the traveling device is provided on the traveling device side. An agricultural product harvester characterized by being configured to be driven by a speed change mechanism, a differential mechanism having a brake, and a traveling speed change mechanism with a brake, and enabling super-spinning. 2. The agricultural product harvester according to claim 1, wherein the crawler traveling device of the traveling machine body is configured such that the steering operation is performed by one steering handle. 3. The harvesting device is provided with a digging conveyor at least at the rear of the digging blade, and the rotation speed of the digging conveyor is configured to be continuously or stepwise variable.
3. The agricultural product harvesting machine according to claim 1, wherein the combination with the vehicle speed can be freely set.