JP2956863B2 - Agricultural harvester - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an agricultural cropping machine mainly for harvesting root vegetables such as sweet potatoes, potatoes, onions, beets, taro, konjac potatoes, and carrots.

[0002]

2. Description of the Related Art Conventionally, agricultural harvesters for harvesting root crops include, for example, potato harvesters, beet harvesters, potato diggers, riding tractors or walking tractors equipped with a digging blade, and the aforementioned digging blade. There are known those in which a link rod chain conveyor is attached to the rear part, and those in which the link rod chain conveyor is vibrated.

[0003]

The above-mentioned potato harvesters, beet harvesters, potato diggers and the like are large like imported products and suitable for use in large-scale fields such as Hokkaido, but small-scale. It was not suitable for use in a natural field, and was a dedicated machine with poor versatility. In addition, those in which a digging blade is mounted on a riding tractor or a walking tractor, those in which a link rod chain conveyor is mounted in the rear of the digging blade, those in which the link rod chain conveyor is vibrated, and the like are small. It has been developed so that it can be used in a natural field, but these working machines, in the case of a riding type, is mounted on a normal riding tractor as a so-called attachment to work, for example, There was a problem that work environment and work operability were not good. The present invention has been made to solve the above problems.

[0004]

In order to achieve the above object, the present invention provides: The self-propelled agricultural product harvester 1 for harvesting agricultural products vegetated in a field, A digging conveyor device 7 for digging and transporting agricultural products from the lower front of the body 2 to the rear through the upper center.
And a sorting conveyor device 18 for performing sorting is provided continuously,
A worker's seat 6 used by a worker who performs a sorting operation of agricultural products conveyed by the digging conveyor 10 is provided at a transfer end portion of the digging conveyor 10 of the digging conveyor device 7 and beside the sorting conveyor device 18. , 17, and 19 are provided so as to be rotatable in place, adjustable in height, and slidable. Of these, the seat 6 also serves as a cockpit and is provided opposite to the seat 19, and the seat 17 is detachable. The seats 6, 19 have backrests 6a, 6b, 19a, 19b which rotate back and forth, and are also used as a backrest and a seat.

[0005]

According to the above construction, the present invention continuously connects the excavating conveyor device 7 for excavating and transporting agricultural products and the sorting conveyor device 18 for sorting from the lower front of the body 2 to the rear through the upper center. For the worker used by the worker who performs the sorting work of the agricultural products conveyed by the digging conveyor 10, at the transfer end portion of the digging conveyor 10 of the digging conveyor device 7 and beside the sorting conveyor device 18. The seats 6, 17, and 19 are provided so as to be rotatable on the spot, adjustable in height, and slidable. Of these, the seat 6 also serves as a cockpit and is provided opposite the seat 19, and the seat 17 is detachable. The seats 6, 19 have backrests 6a, 6b, 19a, 19b that rotate back and forth, and are also used as the backrests and seats. An auxiliary operator perform sorting operations by providing, agricultural feed into sorting conveyor 18 in a clean, unobtrusive in the removing time unnecessary. In addition, the seat 6 also serves as a cockpit, and the seats 6 and 19 use the backrests 6a, 6b, 19a and 19b that rotate back and forth by selecting the backrest and the seat, thereby improving workability.

[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. The potato harvester 1 has a body 2 equipped with a crawler 3, an engine part 4 provided on one side of the body 2, and a fuel tank 4a is provided. The engine section 4 includes an engine, a generator driven by the engine, a hydraulic pump, and the like (not shown). A control unit 5 is provided behind the engine unit 4, and a control seat and work seat 6 is provided further behind the control unit 5. From the lower front of the fuselage 2 to the upper center of the fuselage, there is provided a digging conveyor device 7 for digging and transporting agricultural products to the rear, which is inclined so that the tip side is lowered.

In the excavating conveyor device 7, excavating blades 9 are attached to the end portions of left and right side frames (frames) 8, 8, and excavating conveyors 10 formed of link rods are provided between the side frames 8, 8.
The lower end of the inclined body is rotatable in the vertical direction about a rotating part 10a at the upper end of the inclined body, and the hydraulic cylinders 11, 11 provided between the body 2 and the side frames 8, 8 are operated to extend and retract. Dynamic adjustment, that is, adjustment of the digging depth is performed. The digging conveyor 10 can adjust its moving speed steplessly or stepwise. Also, brackets 12 projecting forward from the left and right side frames 8, 8
A ridge follower 13 is provided on the ridge 12 for following along with the movement of the body along the length direction of the ridge to be harvested.

The ridge follower 13 is provided with a pair of wheels 14, 14 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 16 and 16. The pair of wheels 14, 14 have a camber angle and a toe-in. On the side of the excavating conveyor device 7, an auxiliary worker seat 17 for selecting and sorting harvested products conveyed by the excavating conveyor 10 is detachably provided. At the rear part of the fuselage behind the digging conveyor device 7, a flat belt-shaped sorting conveyor device 18 for carrying out the sorting operation while placing and transferring the harvested material is arranged, and the sorting conveyor device 18 is transferred. Sorting work can be performed on both sides in the direction.

The above-mentioned cockpit / working seat 6 is opposed to the control unit 5 and is located on the side of the sorting conveyor device 18. An operator seat 19 and a step 20 are provided, and a worker sitting on the cockpit / work seat 6 can perform both the manipulation work and the sorting work at the same position. A control section step 5a and a sorting step 21 are provided below the fuselage. The cockpit / work seat 6, the auxiliary worker seat 17, and the worker seat 19
Can be rotated on the spot, and height and slide can be adjusted. Steps 20 and 21
Is configured to be able to be displaced (folded) between a use state and a non-use state, and to fit within the width of the body 2 at least when not in use.

In the vicinity of the operator's seat 19, a traveling clutch lever and a digging conveyor 10 provided on the control unit 5 are provided.
The clutch lever 22 which can be operated in conjunction with the clutch lever of the aircraft is provided.
The traveling clutch and the excavating conveyor clutch can be operated. A rake-shaped sieve line 23 shown in FIGS. 2 and 16 is provided below the end of the sorting conveyor device 18. In addition, behind the sorting conveyor device 18, a loading platform 24 for placing a container (for example, a container) for storing harvested agricultural products extends outward from the fuselage 2, and a storage status where the loading platform 24 is stored on the fuselage 2 side. It is provided so that it can be folded. This loading platform 24 is detachable from the body 2,
Further, it may be provided so as to be vertically adjustable.

As shown in detail in FIGS. 14 to 16, the loading platform 24 is turned (rotated) on its outer peripheral portion between a position protruding from the upper surface of the loading platform 24 and a position below the upper surface of the loading platform 24. ) Left and right side frames 24a, 24a and a rear side frame 24b are provided, which are possible and are held at respective positions. The side springs 24a and 24b are turned up and down (rotated) between a position protruding from the upper surface of the loading platform 24 and a position below the upper surface of the loading platform 24, and the toggle spring 2 is held in each position.
5 are provided. In the embodiment shown in FIG.
Are provided with steering levers 26, 26, but instead of the steering levers 26, 26, a steering handle 27 shown in FIGS. 5 and 6 may be provided.

Referring to FIGS. 4 and 5, the transmission 28 and the steering operation unit 29 will be described. The transmission 28
Receiving power from the engine 4 via the belt transmission system 4b,
A transmission gear 31 is mounted on an output shaft 30a of a hydraulic continuously variable transmission (HST) 30 that performs a continuously variable transmission, so that the speed can be changed between stepless and stepped, and a side clutch 32 is connected to a clutch operation arm 32a and a clutch operation rod. The crawler 32 is operated by the crawler drive shaft 32, and the power transmission to the crawler drive shafts 34, 34 is connected or cut off via the differential device 33, so that the crawler 3, 3 can change the speed steplessly and stepwise. 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 of the tight arm 36, and cam followers (rollers) 38, 38 which are selectively in contact with the cams 37, 37 when the steering handle 27 is turned to the left or right greatly are provided. The brake operation rod 35b is connected to the cam followers 38, 38. When the steering handle 27 is turned to the left or to the right, the side clutch 32, the differential mechanism 33, and the brake 35 are operated to turn the airframe in a super-spot.

Further, 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 harvester 1 is not in use, the excavating conveyor device 7 rotates the entire excavating conveyor device 7 or, as shown in FIG. It is designed to be rotatable toward the fuselage and housed. The front and rear length of the fuselage is shortened so that it can be loaded and transported on the bed of a light truck, and can be housed in a warehouse or the like. As shown in FIG. 13, a cylindrical body 10c made of an elastic body is rotatably fitted on at least the outer periphery of the transport rod 10b in the excavating conveyor 10.

As shown in FIG. 8, the sorting conveyor device 18 is provided continuously with a delivery conveyor 18a and a sorting conveyor 18b so that the moving speed of the delivery conveyor 18a is faster than the moving speed of the sorting conveyor 18b. It may be configured as follows. The cockpit and work seat 6
As shown in FIGS. 9 to 11, the operator's seat 19 has a rotatable backrest, which is used as a backrest and a seat, so that the worker can sit and stand. In any case, the operator's seat 6a and the operator's seat 6a and the operator's seat 19a that can perform the sorting operation may be configured. Further, as shown in FIG. 12, a rotating backrest and a seat-type vertical / cum-working seat 6b and an operator's seat 19b may be used. Both types of seats are rotatable in place and height and slide adjustable.

As shown in FIGS. 9 and 10, a column mounting seat 39 is provided on the side of the fuselage so as to be adjustable in angle and height.
Attach the support of the parasol 40 to this mounting seat 39,
An operator who sits on the cockpit / working seat 6, the auxiliary worker seat 17, and the worker seat 19 is shaded. Further, a fan 41 may be attached to a column of the parasol 40 and operated by the electric power generated by the generator to send wind to an operator.
In addition to the above, household electric appliances such as radios can be used.

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, and short root ginseng from a field, the potato harvester 1 removes the wheels 14, 14 of the ridge following device 13 from the ridges to be harvested. Of the excavating conveyor device 7
Is adjusted up and down by hydraulic cylinders 11 to adjust the digging depth, and the crop is digged by the forward movement of the machine.
And lifts the machine obliquely upward while transporting it with the soil by the digging conveyor 10. During this transportation, soil falls from between the link rods, and the excavating conveyor 10
A worker sitting in the cockpit / working seat 6 and the worker's seat 19 sorts the crops discharged onto the sorting conveyor device 18 from the transport end of the container (container) (container) placed on the loading platform 24. ). The soil and contaminants remaining on the sorting conveyor 18 fall from the transport end to the field.

A ridge follower 13 is provided in front of the excavating conveyor device 7 to follow the machine body along the length 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. 14 are provided facing each other so as to be vertically adjustable and horizontally adjustable with respect to the excavating conveyor device 7, so that both wheels 14 automatically follow the ridge to be harvested and automatically steer the aircraft, and Automatic excavation / transportation by the take-up conveyor device 7 is performed. 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 steering the machine 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 crops dug by the excavating conveyor device 7 can be efficiently sorted. Since the moving speed of the digging conveyor 10 can be steplessly or steppedly adjustable, the moving speed of the digging conveyor 10 is appropriately selected according to the type of crop to be harvested, the amount of harvest, the state of the field, and the like.
Appropriate work can be performed. Sorting conveyor device 18
Because it is a flat belt, it can handle many crops to be harvested,
Also, the danger of the sorting operator is small. Sorting conveyor device 1
8 is divided into the delivery conveyor 18a and the sorting conveyor 18b, the delivery of the harvest from the excavating conveyor device 7 is performed more smoothly. Sorting conveyor device 18
Out of the contaminants, crops and soil that fall on the sieve wire 23 from the transport end of the soil, the soil falls first in the field from between the sieve wires 23, and the crop falls on it and is exposed on the soil. And the harvest can be easily collected. Steps 20 and 21 corresponding to the cockpit / work seat 6 and the worker seat 19, respectively.
Is provided, so that the sorting operation can be performed in a stable posture.

The crawler traveling device 3 of the traveling machine body 2 is connected to a continuously variable transmission mechanism 30 and a brake 35 provided on the traveling machine body 2 side.
Differential mechanism 33 having a traveling mechanism 31
, It is possible to perform a super turning operation, and an efficient harvesting operation 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 when the steering operation is performed by the left and right steering levers, and the super turning operation can be easily performed. I can do it. Further, the harvesting device 7 is provided with a digging conveyor 10 at least at a rear portion of the digging blade 9 so that the rotation speed of the digging conveyor 10 can be adjusted steplessly and stepwise. The excavating conveyor 1 can be set freely according to the field conditions, the condition of the agricultural products vegetated in the field, etc.
The rotation speed of 0 is adjusted, and a proper harvesting operation is performed.

At the rear of the fuselage 2, a loading platform 24 for mounting a container (container) for storing harvested agricultural products is extended from the fuselage 2 to an outside use state, and a storage state is stored to the body 2 side. Since it is provided so that it can be folded,
With 4 in use, harvested agricultural products can be moved while being sorted and stored in containers. In addition, when the harvesting operation is not performed, the loading platform 24 is kept in the stored state, so that it does not become a hindrance when moving or storing the harvester. Furthermore, since the outer frames of the loading platform 24 are provided with side frames 24a and 24b which can be tilted between a position protruding from the loading platform upper surface and a position below the loading platform upper surface and held at the respective positions,
When the containers containing the harvested produce are loaded on the loading platform 24, the side frames 24a and 24b project from the upper surface of the loading platform 24 to prevent the containers from dropping, and the containers containing the harvested produce are placed on the carrier. When transferring to a carrier, etc., use side frame 2
By lowering the 4a, 24b to a position lower than the upper surface of the loading platform 24, the transfer operation can be easily performed.

A control device 5 and a seat 6 are provided on one side near the rear of the aircraft.
And step 21, the operator's seat 19 and step 20 are respectively provided on the opposite side of the control device 5, and the worker on the control device 5 side can perform both the control operation and the sorting operation. Since the in-place rotation is possible and the height and slide can be adjusted, the worker sitting on the seat 6 of the control device 5 can easily change the posture to the control operation and the sorting operation. Even a sitting worker can perform sorting work in an easy posture. Steps 20 and 21 can be displaced between a use state and a non-use state, and fit within the body width when not in use. Therefore, the steps 20 and 21 can be used to perform a stable sorting operation while the body is not in use. Move and store the aircraft within the width. Further, the traveling clutch and the digging conveyor clutch can be operated from either the left or right side of the fuselage by the control device 5 and the clutch lever 22,
In an emergency, both the left and right workers performing sorting work can run the aircraft and stop the digging conveyor,
Work can be resumed.

The digging conveyor device 7 is provided with a digging blade 9 at the front side of a digging conveyor 10, and a rotating unit 1 with respect to the body 2.
The digging blade 9 is freely rotatable about 0a, and the digging depth by the digging blade 9 and the transport angle of the digging conveyor 10 can be freely adjusted. When the digging conveyor device 7 is not used, the entire digging conveyor device or the tip side portion is rotated and housed in the machine body side, and the digging blade 9 and the digging conveyor 1 are stored when not used.
By setting 0 to the stowed state, the front-rear length of the body is shortened, and transport by a transport vehicle or the like is easily performed. Also, it does not take up space when storing in a warehouse or the like. Since the cylindrical body 10c made of an elastic body is rotatably inserted into at least the outer periphery of the transport rod 10b of the digging conveyor 10, the crop digged by the digging blade 9 is transported by the digging conveyor 10. Meanwhile, the soil conveyed with the crop falls due to the rotation of the elastic cylinder 10c, and the soil attached to the outer periphery of the crop also falls.

A generator driven by a prime mover (engine) is mounted on the fuselage, and the electric power generated by the generator operates a fan 41, a radio, and the like provided on the fuselage. It is good and you can work comfortably. The aircraft was equipped with worker seats 6, 17, and 19, and the nearby aircraft was equipped with an umbrella mount that could adjust the angle and height, so the umbrellas prevented sunlight and protected workers from heat and sunburn. Improve working environment. Since the auxiliary worker seat 17 is detachably provided on the side of the excavating conveyor 10, auxiliary work may be performed depending on the condition of crops and fields, and may be removed when unnecessary. In addition, when the cockpit / work seat 6 and the worker seat 19 are configured as 6a, 19a, 6b, and 19b having a rotating backrest, the worker can be sorted in either a sitting state or a standing state. Work can be done. The potato harvester 1 of the present invention can be used not only for harvesting potatoes but also for collecting empty cans, empty bottles, wood chips, and the like that have been left, for example, on the coast or dunes. In this case, the ridge following device 13 may be removed or the device may function as a device for adjusting the digging depth of the digging blade 9.

[0025]

As described above, according to the agricultural product harvester of the present invention, the excavating conveyor device 7 for excavating and transporting agricultural products from the lower front to the rear through the upper center of the body 2 and the sorting. The sorting conveyor device 18 is continuously provided, and the excavating conveyor 1 of the excavating conveyor device 7 is provided.
The operator's seats 6, 17, and 19 used by an operator who sorts the agricultural products conveyed by the excavating conveyor 10 are provided at the transport end portion of the zero and the sorting conveyor device 18 beside.
Is provided so as to be rotatable on the spot, adjustable in height, and slidable. Of these, the seat 6 also serves as a cockpit,
The seat 17 is detachable, and the seats 6, 19 are provided with backrests 6a, 6b, 19 that rotate back and forth.
a, 19b, which is also used as a backrest and a seat, so that depending on the condition of the harvest and the field, an operator's seat 17 can be provided so that the auxiliary worker can turn and perform the sorting work. In addition, agricultural products can be sent to the sorting conveyor device 18 in a clean state. When the operator seat 17 is unnecessary, it is not obstructed by removing it. Further, the seat 6 also serves as a cockpit and can perform both steering and sorting work, and the seats 6 and 19 use the backrests 6a, 6b and 19a and 19b by selecting the backrest and the seat. Workability can be improved.

[Brief description of the 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 whole potato harvester.

FIG. 3 is a front view of the same.

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

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

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

FIG. 7 is a side view of the whole potato harvester, showing a folded state of the excavating 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 seats of the sorting operation unit.

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

FIGS. 11 (a) and (b) are explanatory diagrams of a seat of a sorting operation unit.

FIGS. 12 (a) and (b) 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 the bed portion.

FIG. 15 is a side view showing a state where the carrier is folded.

FIG. 16 is a plan view of a state where the side frame of the loading bed is turned down and a sieve line.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Potato harvester 2 Aircraft body 3 Crawler 4 Engine part (engine, generator, hydraulic motor) 4
Reference Signs List a Fuel tank 4b Belt transmission system 5 Steering unit 5a Steering unit step 6 Steering and working seat 7 Digging conveyor device 8 Side frame (frame) 9 Digging blade 10 Digging conveyor 10a Rotating part 10b Transport rod 10c Elasticity Cylindrical body 11 Hydraulic cylinder 12 Bracket 13 Ridge following device 14 Wheel 15 Vertical adjustment mechanism 16 Slide mechanism 17 Auxiliary worker seat 18 Sorting conveyor device 18a Delivery conveyor 1
8b Sorting Conveyor 19 Operator's Seat 20 Step 21 Sorting Step 22 Clutch Lever 23 Sieve Line 24 Bed 24a Left and Right Side Frame 24b Rear Side Frame 25 Toggle Spring 26 Steering Lever 27 Steering Handle 27a Steering Shaft 27b Operating Gear 28 Transmission 29 Control section 30 Hydraulic continuously variable transmission (HST) 30a Output shaft 31 Transmission gear 32 Side clutch 32a Clutch operating arm
32b Clutch operating rod 33 Differential device 34 Crawler drive shaft 35 Brake device 35a Brake operating arm 3
5b Brake operation rod 36 Tight arm 37 Cam 38 Cam follower 39 Post mounting seat 40 Parasol 41 Fan

Continuation of the front page (56) References JP-A-51-10032 (JP, A) JP-A-60-217817 (JP, A) JP-A-2-55516 (JP, U) JP-A-55-20865 (JP) , U) Japanese Utility Model Showa 55-83910 (JP, U) Japanese Utility Model Showa 58-117822 (JP, U)

Claims (1)

(57) [Claims] 1. A self-propelled agricultural product harvester (1) for harvesting agricultural products vegetated in a field, wherein the agricultural products are dug from the lower front to the rear through the upper central portion of the body (2) and transported. A digging conveyor device (7) for performing the sorting and a sorting conveyor device (18) for performing the sorting are continuously provided, and the transporting end portion of the digging conveyor (10) of the digging conveyor device (7) and the sorting conveyor device (1).
On the side of 8), a worker's seat (6, 17, 19) used by a worker who sorts agricultural products conveyed by the excavating conveyor (10) is rotatable in place, and has a high height. Adjustable and slidable, of which the seat (6)
Is also provided as the cockpit and is provided opposite the seat (19).
The seat (17) is removable and the seats (6, 19)
The backrest (6a, 6b, 19a, 19
An agricultural harvester having b) , wherein the harvester is also used as a backrest and a seat.