JP2582533Y2 - Agricultural harvester - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention mainly uses sweet potatoes, potatoes, onions, beets, taro, konjac potatoes, carrots, and other root vegetables in the field, and excavates the root vegetables with little damage. The present invention relates to an agricultural product harvester that conveys so that dropping can be performed well.

[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]

[Problems to be Solved by the Invention] The above-mentioned potato harvester, beet harvester, potato digger, etc. 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. Although it was developed so that it can be used in natural fields, the inclination angle of the conveyor is steep, for example, when harvesting sweet potatoes, when vines and whiskers are connected to potatoes, There is a problem that the moat to be dug is conveyed without being along the conveyer, rolls off or slips off the conveyer, and that the soil adhering to the potatoes is not well dropped. The present invention has been made to solve the above problems.

[0004]

In order to achieve the above object, the present invention provides: The harvester 1 that harvests agricultural products vegetated in the field,
B. In the self-propelled agricultural product harvester 1 provided with an excavating conveyor device 7 for excavating and transporting agricultural products, At a position above the conveyor of the excavating conveyor device 7,
Through a pair of left and right brackets 12 and link arms 12a, the surface is covered with an elastic material, and comes into contact with the crop that is placed on the conveyor and moves, and rotates in the same direction as the moving direction of the conveyor to rotate the crop. The press roller 25 that presses is supported so as to be able to move in the vertical direction and to tilt in the horizontal direction.

[0005]

According to the above configuration, the agricultural product harvester of the present invention has: The upper surface of the excavating conveyor device 7 is covered with an elastic material via a pair of left and right brackets 12 and link arms 12a via a pair of left and right brackets 12 and comes in contact with harvested goods placed and moving on the conveyor. By supporting the holding roller 25 which rotates in the same direction as the moving direction and presses the harvested product so as to be able to move in the vertical direction, the agricultural product which is excavated from the field, placed on the conveyor and conveyed On the other hand, the pressing roller 25 presses in a vertically moving state, thereby preventing the agricultural product from rolling down or sliding down from the conveyor without being damaged. In addition, since the agricultural product is pressed against the conveyor by the holding roller 25, the soil attached to the agricultural product can be favorably dropped. . In addition, since the holding roller 25 is supported so as to be able to tilt left and right, even if there is agricultural product dug out of the field and placed on the conveyor and biased to the left and right, the holding roller 25 moves up and down. Tilt left and right to press agricultural products without difficulty.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One 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). On the other side of the fuselage 2 opposite to the engine unit 4, there is a control unit 5
Is provided, and a cockpit / working seat 6 is provided behind the steering unit 5. From the lower front of the fuselage 2 to the upper center of the fuselage, an excavating conveyor device 7 is provided, which excavates agricultural products and transports the agricultural products toward the rear.
The conveyor device 7 has a front end portion pivotally supported at a base end so as to be vertically movable.

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, and the digging conveyor 10 can be folded to the fuselage side from the middle of the side frames 8, 8. The operation is performed by a hydraulic cylinder (not shown). The digging conveyor 10 can adjust its moving speed steplessly or stepwise. The brackets 12, 12 projecting forward from the left and right side frames 8, 8 are provided with a ridge follower 13, which follows the machine body along the length 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.

As shown in FIG. 8, upper ends of a pair of left and right link arms 12a, 12a are pivotally attached to the brackets 12, 12 above the excavating conveyor 10, and the upper ends of the link arms 12a, 12a. The lower end has a rotating shaft 2
A press roller 25 is rotatably supported on the excavating conveyor 10 through the support 5a. This pressing roller 25
Has a surface side coated with an elastic body such as urethane rubber. Then, the holding roller 25 comes into contact with the harvested product placed and moving on the conveyor 10, and rotates in the same direction as the moving direction of the conveyor 10 so as to be able to move up and down and tilt left and right so as to press the harvested product. ing.

The 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
Can be displaced (folded) between a use state and a non-use state by rotating in the front-rear direction.
It is configured to fit within the width of.

In the vicinity of the operator's seat 19, a traveling clutch lever provided on the control unit 5 and a digging conveyor 10 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 FIG. 2 is provided below the end of the sorting conveyor device 18. Further, a use state in which a loading platform 24 for mounting a container (for example, a container) for storing harvested agricultural products is projected outward from the machine body 2 behind the sorting conveyor device 18,
It is provided so that it can be folded to the storage state where it is stored on the side.
The loading platform 24 may be provided detachably with respect to the body 2 and may be provided so as to be vertically adjustable.

In the embodiment shown in FIG. 1, the steering unit 5 is provided with the steering levers 26, 26.
Instead of 26, a steering handle 27 shown in FIGS. 5 and 6 may be provided. The transmission 28 and the steering operation unit 29 will be described with reference to FIGS. 4 and 5. The transmission 28 receives power from the engine 4 via the belt transmission system 4b and performs a continuously variable hydraulic transmission (HST) 30.
The transmission gear 31 is mounted on the output shaft 30a of the vehicle, so that the speed can be changed between stepless and stepped, and the side clutch 32 is operated by the clutch operation arm 32a and the clutch operation rod 32b. The power transmission to the drive shafts 34, 34 is connected or disconnected, and the crawlers 3, 3 allow the vehicle to travel between the continuously variable speed and the stepped speed. 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 can be stored by rotating it to the fuselage side together with the presser roller 25, the front and rear length of the fuselage can be shortened, it can be loaded on the light truck bed and transported,
It can be stored in a warehouse.

Although not shown, the cockpit / working seat 6 and the operator's seat 19 are provided with a rotatable backrest.
The backrest and the seat may be used together to form a cockpit / working seat and an operator's seat that allow the operator to perform a sorting operation in either a sitting state or a standing state. Further, a vertical seat / working seat and an operator's seat which can be used both as a rotating backrest and a seat may be used. Both types of seats are rotatable in place and are height and slide adjustable.

As shown in FIG. 1, a post mounting seat 39 is provided on the side of the fuselage so as to be adjustable in angle and height, and a parasol post (not shown) is mounted on the mounting seat 39 so that the cockpit / work seat 6 is provided. The worker sitting on the auxiliary worker seat 17 and the worker seat 19 is shaded. In addition, a fan may be attached to the support of the parasol and operated by the electric power generated by the generator to send the wind to the workers.In addition to the fan, household electric appliances such as radios are used. It is possible.

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.

The harvested material dug by the excavating blade 9 is placed on the excavating conveyor 10 together with the soil and conveyed at the starting end, where the holding roller 25 comes into contact with the moving agricultural product and moves up and down. While moving and tilting left and right, the conveyor 10 rotates in the same direction as the moving direction of the conveyor 10 and presses the crop. as a result,
The crop is held down without being damaged, and is reliably conveyed by the conveyor 10 to prevent the crop from rolling off or slipping off the conveyor 10. In addition, the harvested product is
As a result, the soil adhering to the crop is dropped satisfactorily.

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,
Further, among the contaminants, crops, and soil that fall onto the sieve wire 23 from the transport end of the sorting conveyor device 18, the soil is
The crop falls first in the field, and the crop falls on it and is exposed on the soil, so that the harvest can be easily collected.
Since the steps 20 and 21 are provided for the cockpit and work seat 6 and the worker seat 19, respectively, the sorting work can be performed in a stable posture.

The crawler traveling device 3 of the traveling body 2 is connected to a continuously variable transmission mechanism 30 and a brake 35 provided on the traveling 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 placing a container (container) for storing harvested agricultural products is extended from the fuselage 2 to a use state and a storage state to be stored on the fuselage 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.

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 in front of a digging conveyor 10, and is provided with 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 front end portion is rotated and housed together with the pressing roller 25 toward the machine body.
By making the excavating conveyor 10 in the housed state, the front-rear length of the machine body is shortened, and transport by a transport vehicle or the like is performed easily. Also, it does not take up space when storing in a warehouse or the like.

[0025] A generator driven by a prime mover (engine) is mounted on the fuselage, and the electric power generated by the generator is used to operate a fan, a radio, and the like provided on the fuselage. And work can be done 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. Also,
If the cockpit and work seat 6 and the worker seat 19 are provided with a rotary backrest, the sorting operation can be performed in any of a state where the worker is sitting and a state where the worker is standing.

The potato harvester 1 of the present invention can be used not only for potato harvesting work, but also for collecting empty cans, empty bottles, wood chips, etc., for example, on coasts and dunes. Can be done. At this time, 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, and the holding roller 25 is removed.

[0027]

[Effects of the Invention] As described above, according to the agricultural harvester of the present invention, the following effects can be obtained. . The upper surface of the excavating conveyor device 7 is covered with an elastic material via a pair of left and right brackets 12 and link arms 12a via a pair of left and right brackets 12 and comes in contact with harvested goods placed and moving on the conveyor. Since the holding roller 25 that rotates in the same direction as the moving direction and presses the harvested product is supported so as to be able to move in the vertical direction, the agricultural product that is excavated from the field and placed on the conveyor and conveyed is transported. On the other hand, the pressing roller 25 presses in the up and down movement state, and it is possible to prevent the agricultural products from being rolled down or slipped off the conveyor and to be surely transported without damaging the agricultural products. In addition, since the agricultural product is pressed against the conveyor by the holding roller 25, the soil attached to the agricultural product falls well, and an efficient harvesting operation can be performed. . Further, the holding roller 25 is connected to a pair of left and right brackets 1.
2 and the link arm 12a, so that it is supported so that it can move in the up-down direction and tilt left and right, even if there are agricultural products dug out of the field and placed and conveyed to the conveyor on the left and right sides, The holding roller 25 tilts left and right with the vertical movement, so that the agricultural product can be pressed without difficulty even in a twisted state.

[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.

[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 Pilot seat and work seat 7 Digging conveyor device 8 Side frame (frame) 9 Digging blade 10 Digging conveyor 10a Rotating unit 11 Hydraulic cylinder 12 Bracket 12a Link arm 13 Ridge follower 14 Wheel 15 Vertical adjustment mechanism 16 Slide mechanism 17 Auxiliary worker seat 18 Sorting conveyor device 19 Worker seat 20 Step 21 Sorting work step 22 Clutch lever 23 Sieve wire 24 Packing board 25 Pressing roller 25a Rotation Shaft 26 Steering lever 27 Steering handle 27a Steering shaft 27b Operating gear 28 Transmission 29 Steering operation unit 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

Claims (1)

(57) [Scope of request for utility model registration] 1. A self-propelled agricultural product harvester (1) in which a harvester (1) for harvesting agricultural products vegetated in a field is provided with a digging conveyor device (7) for digging and transporting agricultural products. In the position above the conveyor of the excavating conveyor device (7),
A pair of left and right brackets (12) and link arms (12
Through a), the surface is coated with an elastic material and placed on a conveyor
The placed on rotating in the same direction as the moving direction of the conveyor in contact with the crop coming moving presser roller for pressing the crop (25), variable a tilting movement to move left-right direction in the vertical direction
An agricultural product harvester characterized by Noh support.