JP2624408B2 - Harvester - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a harvesting machine, for example, digging a crop such as onion, transporting it while sifting the soil, removing foliage from the crop, and placing the crop in a container. Regarding what to collect.

[0002]

2. Description of the Related Art Conventionally, as this kind of harvester, for example, as described in Japanese Utility Model Publication No. Sho 62-28819, onion is conveyed to the upper part of the harvester body and the onion foliage is used. A cutting device provided at the rear end of a cutter for cutting the onion, and a lifting conveyor for lifting onions conveyed from the cutting device close to the rear end of the cutting device is erected and fixed. 2. Description of the Related Art There is known a configuration in which a lifting device that supports a container for receiving onions carried out from a lifting conveyor in a rear portion so as to be movable up and down is provided.

[0003]

In the configuration disclosed in the above publication, the lifting conveyor is fixed upright in the vicinity of the rear end of the cutting device. Therefore, the lifting conveyor and the cutter at the rear end of the cutting device are fixed. When the maintenance, inspection and maintenance of the cutting device, especially the cutter at the rear end, is very difficult and requires a lot of trouble, that is, the cutter is a consumable item. It is necessary to replace the cutter depending on the frequency of use.However, since the distance between the lifting conveyor and the cutter at the rear end of the cutting device is narrow, it may be difficult for workers to reach the cutter requiring replacement. There is a problem that it takes time to replace many cutters, which is not preferable in terms of work efficiency, and that the replacement is dangerous.

Therefore, the present invention has been made in view of the above problems, and when performing maintenance work on a foliage processing apparatus such as exchanging a cutter of the foliage processing apparatus, the rear portion of the foliage processing apparatus is largely opened so that the work space is removed. -Source can be secured,
An object of the present invention is to provide a harvester capable of easily, efficiently, and safely performing maintenance, inspection, and maintenance work of a foliage treatment apparatus including replacement of a cutter.

[0005]

SUMMARY OF THE INVENTION A harvester according to the present invention comprises a movable harvester main body, a harvester provided on an upper portion of the harvester main body, for transporting harvested material rearward and cutting foliage at a rear end. A foliage processing apparatus having a cutter, and left and right support rods erected relative to the left and right portions of the harvester main body,
Left and right masts rotatably supported in the upper and lower directions via pivot shafts at the upper ends of the left and right support rods, respectively, are provided between the inner parts of the left and right masts and are carried out of the foliage processing device. Conveyor, which is provided on the left and right masts so as to be able to move up and down, and which receives a crop carried out from the lifting conveyor, and a cylinder device which moves up and down the load cradle along the mast. When,
A first locking device provided at an elevating portion of the loading tray to lock the loading tray with respect to the mast; And a second lock device that locks freely.

[0006]

According to the harvester of the present invention, the harvester is advanced, and the harvested material dug out sequentially from the field is successively carried into the foliage processing device and transported backward by the foliage processing device. The stems and leaves of each onion conveyed to the rear end are sequentially cut by a cutter. Further, the onions from which the foliage has been removed are sequentially carried into the lifting conveyor from the carry-out end of the foliage processing apparatus, are lifted upward, and are sequentially carried from the carry-out end into a container supported by the loading table and received. .
In this case, the container is supported by the loading tray pushed up along the mast by the cylinder device in a state in which the container is close to the discharge end of the lifting conveyor, so that the difference between the yield of the harvest to the container and the yield is small. Accepted without damage. Then, when a predetermined amount of the harvested product is stored in the container, the container supported by the load receiving cradle can store the harvested product by operating the cylinder device and lowering the loading cradle along the left and right masts. Set to state. Therefore, by successively lowering the loading tray in accordance with the state of storage of the crops in the container, the crops are received in the container in a state where the difference between the receipts is small and the crops are sequentially stored without damaging the crops.

In loading and unloading the container containing the harvested product, the loading device supporting the container is lowered to the predetermined unloading position along the left and right masts by operating the cylinder device. The container can be easily loaded and unloaded from the receiving table. Next, when exchanging the cutter at the rear end of the foliage processing device, for example, the foliage processing device, the first locking device is operated, and the loading table is moved along the mast by the first locking device. While locking to the mast so as not to rise, the second locking device is operated, and the second locking device unlocks the lower ends of the left and right masts with respect to the harvester body. Next, when the cylinder device is operated and the piston rod is extended, the left and right masts that lock the loading tray rise upward around the rotation center axis of the upper end of the left and right support rods provided on the harvester body. At the time when the lifting conveyors provided between the inner ends of the left and right masts are similarly rotated upward, and these are rotated upward to open the rear part of the foliage processing apparatus, the cylinder device is opened. Stop the operation of. This secures a wide space at the rear of the foliage processing apparatus where the operator can easily work, and facilitates the replacement work of the cutter of the foliage processing apparatus.

[0008]

Next, the configuration of an embodiment of the present invention will be described.

Reference numeral 1 denotes a harvester main body.
A crawler 3 is provided on the lower side of the main frame 2 and the main frame 2
A foliage treatment device 4 is provided between the left and right side frames 2a provided at the upper part of the flap.

In the foliage processing apparatus 4, a pair of rollers 5 are arranged side by side as a set for sequentially aligning the onion stems and leaves downward while transporting the onions as harvested products rearward.
a, 5b, at the rear end of a pair of rollers 5a, 5b of each set of the roller group 5, and at the rear end of one of the rollers 5a. , A rotatable annular rotator 7 having a conical guide 6 at the upper portion, and a conical guide 8 disposed at the rear end of the other roller 5b. And a rotatable disk-shaped cutter 9 having an upper portion.

The cutters 9 of the respective sets are detachably attached to the support shafts 10 of the respective guides 8, and the outer peripheral portions are attached to the rotating body 7 on one side of the respective sets. Are brought into contact with each other and are rotated in conjunction with each other by the rotation of the rotating body 7. The pair of rollers 5a and 5b of the roller group 5 are rotated inward in opposite directions, and the onion stems and leaves are directed downward while transporting the onion backward. Are arranged in order. Further, there is provided a shoe 11 located at the rear side of each of the cutters 9 for guiding the onion backward.

The main frame 2 includes the crawler 3.
And a drive unit (not shown) for outputting to each of the roller groups 5 of the foliage processing apparatus 4 to drive them. Also, from the front side to the front of the main frame 2, in order from the front to the rear main frame 2, a ground contact wheel, an excavated body, a conveyor, and the foliage processing device 4 from the discharge end of the conveyor. There is a series of shoots that guide onions. And the said conveyor is interlockedly rotated by the said drive device.

Next, left and right side frames on the main frame 2
At the rear end of 2a, a bracket 12 is integrally formed so as to protrude upward relative to each other, and the left and right brackets 12 respectively have lower end portions of left and right support rods 13 slightly inclined rearward and upward. The right and left support rods 13
Left and right fixing masts are connected to the upper end of the
Fifteen mounting frames 16 are pivotally mounted so as to be rotatable vertically.
The left and right mounting frames 16 are fixed to the vicinity of the upper ends of the left and right masts 15 and protrude toward the support rod 13. The projecting ends of the left and right mounting frames 16 are Are rotatably mounted on the upper end portions thereof via the rotation center shafts 14, respectively.

The left and right fixing masts 15 are vertically long and parallel to each other. Between both upper ends thereof, both ends of a horizontally extending support frame 17 long in the left and right direction are integrated. It is stuck to. Also, the left and right fixing masts 15
A plurality of connecting fittings 18 are fixed to the upper and lower portions of the inside of the foliage, respectively, and the left and right upper and lower connecting fittings 18 lift the onion carried out from the carrying-out end of the foliage processing apparatus 4. A conveyor 19 is connected and supported.
The lifting conveyor 19 has opposite conveyor frames 20 connected to the left, right, upper and lower connection fittings 18 at left and right portions, and sprockets 21 are fixed to left and right portions between upper end portions of the left and right conveyor frames 20. Drive shaft 22 is rotatably mounted on the shaft, and the left and right conveyor frames 20
A rotating shaft 24 having sprockets 23 fixed to the left and right portions is rotatably mounted between the lower ends of the sprockets 21, and between the sprocket 21 at the upper left and right portions and the sprocket 23 at the lower left and right portions.
An endless revolving body 25 formed by arranging a large number of horizontal rods side by side with a gap between the left and right endless chains for sifting the soil is suspended so as to be freely rotatable. The horizontal rod at the position is provided with a locking horizontal rod that locks and lifts the onion.

Next, guide rollers are rotatably mounted on the left and right fixing masts 15 via a plurality of roller shafts at upper and lower portions, respectively. A lifting mast 26 having a U-shaped cross section is inserted into the mast 15 so as to be able to move up and down freely.
A connecting rod 27 is horizontally fixed between the upper end and the vicinity of the lower end. An upper end of a vertical portion of an L-shaped bracket 29 in a side view is vertically rotatably mounted on an outer portion of a portion near a top end of the left and right lifting masts 26 via a support shaft 28. The upper end of the receiving table 30 is integrally fixed and supported at the end of the horizontal part of the bracket 29 of the section.

The receiving table 30 has a frame 31 formed on the left and right portions in an L-shape when viewed from the side. The upper end of the vertical portion 32 of the frame 31 on the left and right sides is attached to the bracket 29 on the left and right portions. The left and right vertical parts are fixed and supported integrally.
32 is connected and supported by a plurality of horizontal bars 33 at the top and bottom. The container 35 is supported by the left and right vertical portions 32 and the left and right fork-like horizontal portions 34 protruding rearward from the lower ends of the vertical portions 32.

A pair of mounting pieces 36 project from each other on the front side near the upper end of the left and right lifting masts 26, and a first shaft 37 is provided between the pair of mounting pieces 36 via a support shaft 37. An upper end portion of a piston rod 39 of the cylinder device 38 is rotatably supported by a shaft. A lower end portion of the first cylinder device 38 has a mounting frame 41 projecting from a rear end portion of the frame 40 of the crawler 3. Axle
It is rotatably supported via 42. The elevating mast 26 having the load receiving table 30 is moved up and down along the fixing mast 15 by the expansion and contraction of the piston rod 39 of the first cylinder device 38.

Further, underframes at the left and right portions of the receiving table 30
A pair of mounting pieces 43 are protrudingly provided on the front upper portion of the vertical portion 32 of the base 31, and a piston rod 46 of the second cylinder device 45 is provided between the pair of mounting pieces 43 via a support shaft 44. The upper end portion is rotatably supported by a shaft, and the lower end portion of the second cylinder device 45 is rotatably supported between the distal end portions of a pair of fixed protrusions 47 via a support shaft 48. The elevating mast is moved by the expansion and contraction of the piston rod 46 of the second cylinder device 45.
The 26 receiving tables 30 are turned around the support shaft 28 in the vertical direction. In the figure, 49 is the left and right fixed mast
15 is a chute rotatably supported between the upper ends of the upper and lower parts 15 in a vertical direction.

Next, on the lower side of the left and right lifting masts 26 as the lifting and lowering part of the load receiving table 30, the connection fittings 18 on the lower side of the left and right fixing masts 15 can be freely disengaged. The first locking devices 50 are respectively mounted. The first locking device 50 has a base 51 fixed to the lower part of the left and right lifting masts 26, and supports the inner part of the left and right bases 51 at intervals on the left and right. Plates 52 are erected in parallel to each other, and support shafts 54 to which the base body of the lock body 53 is fixed are rotatably supported between the left and right support plates 52, respectively. A handle 55 is formed at one end, and the lock body is
The lock 53 rotates the load receiving table 30 with respect to the left and right fixing masts 15.

The lock body 53 has an upper surface formed with an engaging portion 56 which is engaged with and disengaged from the lower surface portion 18a of the connection fitting 18 on the lower side of the fixing mast 15. A guide surface 57 for the lower surface portion 18a of the connection fitting 18 is cut out at a lower portion of the front end thereof, and a support surface 58 supported on the base 51 is horizontally formed on a lower surface portion following the guide surface 57. It is formed in a shape.

Next, the main frame 2 of the harvester main body 1
Second locking devices 59 for locking the lower end portions of the left and right fixing masts 15 are attached to the rear end left and right portions, respectively. In the second lock device 59, bases 60 are fixed to the left and right upper portions of the rear end of the main frame 2, and a plate-shaped lock body 61 is mounted on the left and right bases 60, respectively. Locking recesses 62 which are vertically fixed integrally and are formed at the rear upper portions of the left and right lock bodies 61 are formed with the rear side opened. On the left and right bases 60, support plates 63 which are located inside the left and right lock bodies 61 and are vertically fixed integrally at intervals, respectively, are fixed to the left and right lock bodies 61 and the left and right lock bodies 61, respectively. Left and right support plates
Hook bodies 65 are rotatably supported in the up-down direction via support shafts 64 between front sides of the hook bodies 63.

The left and right hook bodies 65 are formed at the lower rear with an engagement recess 66 facing the engagement recess 62 of the lock body 61, and a handle 67 is integrally formed at the front end thereof toward the front. It is projected to. Also, the left and right hook bodies 65
One end 68a of a wound spring 68 is engaged with the lower end of the rear end, and the other end 68b of the spring 68 is engaged in the middle of the support plate 63. Then, the hook body 65 is always urged downward by the spring 68 so that the engaging concave portion 66 closes the locking concave portion 62 from the rear. Further, a stopper 69 for supporting the lowering position of the handle 67 of the hook body 65 is integrally bridged between the lower front ends of the left and right lock bodies 61 and the left and right support plates 63.

Further, a connecting shaft 70 is horizontally and integrally fixed to the lower end portions of the left and right fixing masts 15, and the left and right connecting shafts 70 are respectively inserted into locking recesses 62 of the left and right lock bodies 61. The hooks 65 are engaged with each other so as to be freely disengageable and locked by the engaging concave portions 66 of the left and right hook bodies 65.
When the lower ends of the left and right fixing masts 15 are locked, the left and right fixing masts 15 are vertically supported.

Next, the operation of the above configuration will be described.

When the first cylinder device 38 is actuated to extend the piston rod 39, the left and right lifting masts 26 having the receiving table 30 on which the container 35 is placed rise along the left and right fixing masts 15. Then, the operation of the first cylinder device 38 is stopped when the opening of the container 35 is raised to a position close to the lower portion of the chute 49. Next, when the second cylinder device 45 is operated to extend the piston rod 46, the load receiving table 30 on which the container 35 is placed is rotated upward about the support shaft 28 in the counterclockwise direction in FIG. The operation of the second cylinder device 45 is stopped when the chute 49 is rotated upward to the position where the chute 49 is inserted into the container 35.

Next, the drive device provided on the harvester body 1 is operated to drive the crawler 3, the foliage processing device 4, the conveyor and the endless revolving body 25 of the lifting conveyor 19 in the respective directions in conjunction with each other.

The crawler 3 is driven by the crawler 3 to advance the harvester, and the digging body sequentially excavates onions having foliage in the field, and each onion is driven and circulated clockwise in FIG. From the conveyed conveyor to the foliage processing apparatus 4.

Each of the onions carried into the foliage processing apparatus 4 is dispersed between each pair of rollers 5a and 5b of the rotating roller group 5 of the foliage processing apparatus 4, each pair including one pair. While being sequentially conveyed rearward by the rollers 5a, 5b rotated inward in opposite directions, these foliage are drawn downward from between the rollers 5a, 5b and aligned. In this state, they are conveyed to the respective rear ends. Each onion is carried in and supported on the guides 6 and 8 from the unloading ends of the respective rollers 5a and 5b, and the foliage of these onions is guided between the guides 6 and 8, and Are cut and removed by the rotating body 7 and the cutter 9.

The onion from which the foliage has been cut and removed is lifted by being locked by each locking horizontal rod of the endlessly rotating body 25 of the lifting conveyor 19 driven and rotated clockwise in FIG. From the upper discharge end via a chute 49
It will be sequentially delivered and received within 35. In this case, since the container 35 is supported in an inclined state in which the chute 49 is inserted, the difference between the collected and received onions is small, and the onions are received without damaging the onions. When the predetermined amount of onion is stored in the container 35 in the inclined state, the second cylinder device 45 is operated to contract the piston rod 46, and the container
The load receiving table 30 on which the 35 is placed is rotated downward in the clockwise direction in FIG. 1 around the support shaft 28, and the operation of the second cylinder device 45 is stopped in a state where the onion can be stored in the container 35.

Therefore, the second cylinder device 45 is sequentially lowered and rotated in accordance with the state of storage of the onion in the container 35, so that the storage head of the onion is reduced in the container 35 and the onion is not damaged. It is accommodated sequentially. In addition, depending on the storage condition of onions in the container 35, the first
By operating the cylinder device 38 and contracting the piston rod 39, the load receiving table 30 supporting the container 35 is sequentially lowered along the left and right fixing masts 15 via the left and right lifting masts 26. Thus, the onion is stored in the container 35 one after another by reducing the storage head of the onion without damaging the onion.

Next, when loading and unloading the container 35 containing the onion, the first cylinder device 38 is operated to further contract the piston rod 39, and thereby the loading table 30 on which the container 35 is placed is placed. Is further lowered along the left and right fixing masts 15 via the left and right lifting masts 26, and the operation of the first cylinder device 38 is stopped when the container 35 is lowered to a predetermined unloading position. And container 35
From the receiving platform 30.

Next, when exchanging the foliage processing device 4, for example, each cutter 9 provided for the rear end of the foliage processing device 4, the first locking device 50 on the left and right sides
By rotating each handle 55, each lock body 53 is rotated around the support shaft 54 toward the connecting metal fittings 18 on the lower side of the left and right fixing masts 15, and the left and right lock bodies 53 are rotated. By supporting the support surface 58 of the base 53 on the base 51, the left and right lock bodies 53 are protruded from the lower portions of the left and right connection fittings 18, and the engagement portions 56 on the upper surface of the lock bodies 53 are provided. Are protruded so as to face the lower portion 18a of the connection fitting 18. As a result, the left and right lifting masts 26 are slightly raised with respect to the left and right fixing masts 15 so that the engagement portions 56 of the left and right lock bodies 53 engage with the lower portions 18a of the left and right connection fittings 18. However, the loading tray 35 is set so as not to rise along the left and right fixing masts 15.

In the left and right second locking devices 59, when the respective handles 67 are pushed downward, the respective hook bodies 65 are turned around the support shaft 64 by the springs 68.
The engaging concave portions 66 of the left and right hook bodies 65 are disengaged from the connecting shafts 70 of the left and right fixing masts 15 and the locks of the left and right connecting shafts 70 are released.

Next, when the first cylinder device 38 is operated to extend the piston rod 39, the left and right fixing masts 15 are fixed.
The left and right lifting masts 26 are slightly raised along the left and right engagement portions of the left and right locking bodies 53 on the lower portions 18a of the left and right connecting brackets 18.
56 are engaged, and the left and right lifting masts 26 of the loading tray 35 are locked so as not to rise along the respective fixing masts 15.

When the piston rod 39 of the first cylinder device 38 is further extended, the left and right fixing masts 15 are moved.
Is pivoted upward about a pivot shaft 14 at the upper end of the left and right support rods 13 provided on the harvester main body 1, and between the inner ends of the left and right fixing masts 15. The lifting conveyor 19 provided is similarly raised and rotated, and when these are rotated upward and the rear part of the foliage processing device 4 is largely opened, the operation of the first cylinder device 38 is stopped. If necessary, a rod-shaped support 71 is detachably connected between the left and right second lock devices and the left and right masts which have been rotated upward. Support 15 As a result, a wide working space is opened at the rear of the foliage processing apparatus 4.

[0036]

According to the present invention, in the maintenance work of the foliage processing apparatus such as replacing the cutter of the foliage processing apparatus,
By locking the elevating part of the receiving tray with respect to the left and right masts with the first locking device, the loading tray can be reliably held at a predetermined position of the mast so as not to rise along the left and right masts, In addition, the second lock device is operated to unlock the lower end portions of the left and right masts with respect to the harvester body, and the cylinder device is operated to extend the piston rod, thereby providing a load receiving stand and a lifting conveyor. The left and right masts can be reliably raised and rotated about the rotation center axes of the upper end portions of the left and right support rods erected on the harvester main body. A wide work space can be ensured reliably, and therefore, maintenance, inspection, and maintenance work of the foliage treatment device, including replacement of the cutter, can be performed easily and efficiently. In, it is possible to perform these tasks safely.

[Brief description of the drawings]

FIG. 1 is a side view of a harvester showing one embodiment of the present invention.

FIG. 2 is a side view showing a cutter mechanism of the foliage processing apparatus.

FIG. 3 is an enlarged side view showing the first lock device according to the first embodiment;

FIG. 4 is an enlarged side view showing the second lock device according to the first embodiment;

FIG. 5 is a side view showing a state in which a rear part of the above-mentioned foliage treatment apparatus is opened.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Harvester main body 4 Foliage processing apparatus 9 Cutter 13 Support rod 14 Rotation center axis 15 Mast 19 Lifting conveyor 30 Receiving stand 38 Cylinder device 50 First locking device 59 Second locking device

Claims (1)

(57) [Claims] 1. A foliage processing device comprising: a movable harvester main body; and a cutter provided at an upper portion of the harvester main body, which conveys harvested material rearward and cuts foliage at a rear end portion. Left and right support rods erected relative to the left and right portions of the harvester main body, and left and right pivotally supported in the vertical direction at the upper end portions of the left and right support rods via respective pivot shafts. A mast, a lifting conveyor provided between the inner parts of the left and right masts for lifting the crop carried out of the foliage processing device, and a crop provided on the left and right masts so as to be able to move up and down and carried out from the lifting conveyor. Receiving device, a cylinder device for raising and lowering the loading device along the mast, a first locking device provided in an elevating portion of the loading device for locking the loading device with respect to the mast, Harvester body A second lock device provided on the left and right portions to lock the lower ends of the left and right masts to the harvester main body in a detachable manner.