JPH0614630A - Harvester - Google Patents

Abstract

PURPOSE:To provide a harvester so designed as to prevent damage to harvests by shocks due to level difference in their reaping and as to be longitudinally shrinkable as a whole to effect miniaturization in its transportation and storage. CONSTITUTION:A conveyor 32 for harvests is composed of the first conveyor frame 33 and the second conveyor frame 34. For first conveyor frame 33, the left and right parts of the rear end thereof are axially supported vertically and revolvably at the left and right revolving central shafts 27 on the front side of the harvester body 1, respectively, in a backwardly and upwardly slant fashion. Whereas, for the second conveyor frame 34, the left and right parts of the front end thereof are fitted to the left and right revolving central shafts 27 and provided on the harvester body 1 in a backwardly and upwardly slant fashion. The first and second conveyor frames 33,34 are consecutively provided through left and right hydraulic cylinders 48 into a set of conveyor 32 gently slant backwardly and upwardly. The first conveyor frame 33 is raised and revolved around the shafts 27 through the hydraulic cylinders 48 and standingly set above the front side of the harvester body 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a harvester, for example,
It relates to a self-propelled one that harvests crops of underground tubers such as sweet potatoes and potatoes.

[0002]

2. Description of the Related Art Conventionally, as a harvesting machine for harvesting this type of harvested product, for example, the structure described in Japanese Utility Model Publication No. 57-192120 is known. The structure described in this publication is provided with a lifting conveyer at the front end of the harvester main body equipped with a traveling device, which is inclined rearward, and a rotary shaft is rotatably laid across the front lower end of the lifting conveyer. A rear end portion of the transfer conveyor, which is arranged so as to incline rearward upward on the rotation shaft, is rotatably supported in the up-down direction, and a dugout body is projectingly provided at the front end portion of the transfer conveyor. The base end of the cylinder device is rotatably attached to the front left and right parts, and the tip ends of the piston rods of the left and right cylinder devices are rotatably attached to the rear left and right parts of the conveyor. This is a structure in which the device supports the transfer conveyor in a state of being inclined backward and upward.

[0003]

In the structure described in the above publication, the harvested product excavated by the excavation body is carried into the carry-in section of the lifting conveyor from the carry-out end of the carry conveyor. At this time, since a step is formed at the continuous part between the carry-out end of the transfer conveyor and the carry-in part of the lifting conveyor, soil is removed by this step, but the impact damages the crops. There is a problem that they are easily affected.

Therefore, in order to remove the soil and convey the harvested product without giving a shock to the harvested product due to the step, it is conceivable to arrange the conveyor in a state of inclining backward at a gentle inclination angle. But according to this structure,
As the total length of the conveyor becomes longer and the conveyor protrudes in front of the main body of the harvester, the overall length in the front-back direction of the harvester also becomes longer overall, which makes it difficult to load the harvester on a truck. A new problem arises in that a large storage space is required for storage.

In the structure described in the above publication, the cylinder conveyer conveys a conveyor having an excavated body in a vertical direction about a rotation axis, and the conveyor conveys the work posture and the retracted posture. However, if the posture of the conveyor is changed from the working posture to the retracted posture, the entire length of the harvester in the front-rear direction hardly changes. The conveyor collides with a seat protruding from the front side of the lifting conveyor, and therefore, the shorter the overall length of the harvester in the front-rear direction, the more the conveyor cannot be lifted and rotated upward, and the harvester is loaded on the truck. Is also difficult and requires a large storage space.

Therefore, the present invention has been made in view of such a point, and at the time of harvesting work, the conveyor is arranged in a state of inclining rearward and upward at a gentle inclination angle, and the soil is sifted to obtain a harvested product. The harvest can be transported without impact due to steps, and it can be transported without damaging it.In addition, when transporting or storing without harvesting work, the total length of the harvester in the front-rear direction can be reduced. It can be shortened overall, it can be loaded on a truck for transportation, and it can be stored in a relatively small storage space. Therefore, a harvester with excellent workability and suitable for transportation and storage can be provided. It is intended to be provided.

[0007]

SUMMARY OF THE INVENTION A harvester according to the present invention comprises a harvester body provided with a traveling device, and an endless machine for transporting a harvested product toward a rear unloading portion while sieving the soil provided in the harvester body. Consisting of a conveyor having a traveling body, and a digging body for digging the harvested product from the ridges and bringing it into the conveyor, the harvester main body is fixed to the front left and right portions of the connecting fittings relative to each other, The first and second conveyor frames are provided with the pivot shafts respectively projecting from the left and right connecting fittings so as to face each other, and the conveyor is provided with the dug body at a front end thereof so as to project in front of the harvester main body. And a second conveyor frame disposed on the harvester main body, and the endless traveling body suspended between the first conveyor frame and the second conveyor frame so as to be rotatable. , The first conveyor frame is The left and right end portions are rotatably supported in the up and down direction on the left and right rotation center shafts and are inclined rearward and upward, and the second conveyor frame has a front end left and right portion with the left and right rotation center. It is attached to a shaft and provided on the harvester main body so as to incline rearward, and the base end portion of the hydraulic cylinder device is rotatably attached to the front left and right portions of the second conveyor frame, and Piston rod end of the hydraulic cylinder device is rotatably connected to the rear left and right parts of the first conveyor frame, and the left and right hydraulic cylinder devices connect the first conveyor frame and the second conveyor. It is a series of conveyors that are supported in series with the frame and are gently inclined backwards.

[0008]

In the harvesting machine of the present invention, the harvesting machine main body is arranged so as to straddle the ridges in the field, and the excavated body faces the ridges. Then, when the main body of the harvester is advanced by the operation of the traveling device, the harvested products cultivated on the ridges are sequentially excavated by the excavated body of the harvester main body. The rear end portion is sequentially carried into the carry-in portion of the conveyor, and the conveyor is sequentially carried toward the rear carry-out portion while sieving the soil. At this time, the harvested product is continuously supported by the first and second conveyor frames by the left and right rotation center shafts and the left and right hydraulic cylinder devices so that the harvested products are gradually supported on the conveyor that is gently inclined backward. Since the crops are transported by the soil, the crops can be smoothly transported without being damaged by the impact of the steps while sieving the soil.

Next, during transportation or storage without harvesting work, when the left and right hydraulic cylinder devices are operated to contract the piston rods, the left and right piston rods pull the first conveyor frame, The first conveyor frame is pulled up and rotated upward about the left and right rotation center axes, and the first conveyor frame is bent to the upper side with respect to the second conveyor frame, and is attached to the front side of the harvester main body. By setting upright, this first
The posture of the front end of the conveyor frame and the excavated body at the front end of the conveyor frame are changed upward from the grounded state inclining downward and forward. By this posture change, the front end portion of the first conveyor frame and the excavated body at the front end portion are deformed so that the entire length in the front-rear direction of the harvester is shortened as compared to the ground contact state in which the front end is inclined downward toward the front. Can be loaded onto a truck for transportation and can be stored in a relatively small space.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of an embodiment of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a harvester main body, which has a rectangular plate-shaped frame 2.
Steps 4 are formed on the left and right sides of the frame 2 via a plurality of supporting legs 3 and crawler 5 as a traveling device is provided on the bottom of the left and right sides of the frame 2. Further, a hydraulic pump 6 as an apparatus, an engine 7 and a transmission 8 are sequentially arranged and fixed on the frame 2 in the front-rear direction, and a rotary shaft 9 of the hydraulic pump 6 is provided.
And the rotary shaft 10 of the engine 7 are interlockingly connected via the interlocking medium 11, and the rotary shaft 10 of the engine 7 and the output shaft 12 of the transmission 8 are interlockingly connected via the interlocking medium 13. Further, the crawler 5 is driven by the output from the engine 7.

In addition, step 4 on the left and right of the frame 2
A hollow cylindrical pillar 14 is vertically and integrally erected at a substantially middle portion in the front-rear direction, and the right and left pillars 14 have a vertical portion of a leg rod 15 formed in a substantially L shape in a side view. 16 is horizontally rotatably fitted, and the seat 20 is horizontally rotatable via a support shaft 19 to a vertical bearing 18 formed at the tip of the horizontal portion 17 of the leg rod 15. It is mounted on. The left and right seats 20 are horizontally rotated in the front-rear direction about the respective columns 14 via the leg rods 15, and the positions to be installed in the front-rear direction are changed.

In addition, step 4 on the left and right of the frame 2
A vertical shaft 21 is integrally projected near the both ends in the front-rear direction, and one end of a support piece 22 is horizontally rotatably supported on the left and right front-rear vertical shafts 21. A container stand 24 is rotatably supported on the other end of the piece 22 via a support shaft 23. And the container stands on the left and right
The 24 is horizontally rotated in the front-rear direction about each vertical shaft 21 via the support piece 22, and the position to be installed in the front-rear direction is changed.

Further, a mounting frame 25 which is long in the left-right direction is integrally fixed to the front end of the frame 2, and left and right connecting metal fittings 26 are fixed integrally to both ends of the mounting frame 25 in the left-right direction. Has been done. The left and right connecting fittings 26 are formed in a substantially triangular shape in a side view, and the base end portions thereof are integrally fixed to both end portions of the mounting frame 25, and the front portion thereof has a rotation center shaft.
27 are provided so as to face each other and integrally project on the same axis, and mounting holes 28 serving as mounting portions are formed opposite to each other at the rear portions thereof. In addition, a pair of columns 29, which are higher than the height of the device in the up-down direction, face each other integrally with the left and right portions of the rear ends of the left and right steps 4, and upper and lower portions of the left and right columns 29 are L-shaped. The shaped support fittings 30 are integrally fixed to each other, and insertion holes 31 are formed in the vertical portions of the left and right support fittings 30 so as to face each other.

Next, 32 is a conveyor.
Is the first conveyor frame 33 which is disposed in front of the harvester main body 1 in a state of being inclined forward and downward, and the harvester main body 1
And a second conveyor frame 34 which is disposed from the front side to the rear side of the device from the above to the rear side.
The first conveyor frame 33 is provided with a dugout 35 for digging a harvested material between the front end portions thereof in a state of being inclined toward the front lower side, and is adjacent to the rear end portion of the dugout body 35. The sprocket 36 is rotatably mounted on the rear left and right parts, and the reinforcing metal fittings 37 are integrally fixed to the rear end left and right parts.
Support holes are formed in the vertical middle portions of the left and right reinforcing metal fittings 37.
38 are formed to face each other, and mounting holes 39 are formed to face each other at upper front portions of the left and right support holes 38. Then, the rotation center shafts 27 of the left and right connecting fittings 26 are rotatably inserted into the left and right support holes 38 of the first conveyor frame 33, respectively. The conveyor frame 33 is rotatably supported in the vertical direction.

Further, the second conveyor frame 34 is
Positioned between the left and right seats 20 and the container stand 24 following the sloped portion 34a arranged in the front of the harvester main body 1 in a state of being gently sloped backward and the rear end of the sloped portion 34a. And a horizontal portion 34b which is disposed in a state where the upper portion of the equipment on the harvester main body 1 extends horizontally toward the rear, and the front end left and right portions of the inclined portion 34a are Engaging portions 40 that overlap the left and right portions of the rear end of the first conveyor frame 33 are projected, and the left and right engaging portions 40 communicate with the left and right supporting holes 38 of the first conveyor frame 33. Are formed respectively, and the rotation center shafts 27 of the left and right connecting fittings 26 are rotatably inserted into the left and right support holes 41, respectively.
A second conveyor frame 34 is rotatably supported in the vertical direction about the left and right rotation center shafts 27.

A rotary shaft 43 having sprockets 42 at both ends is rotatably mounted between the rear ends of the horizontal portions 34b of the second conveyor frame 34, and is located in front of the rotary shaft 43. Further, communication holes 44 that communicate with the insertion holes 31 of the left and right support fittings 30 are formed in the lower left and right portions of the horizontal portion 34b. The left and right portions of the horizontal portion 34b of the second conveyor frame 34 are normally the left and right support columns.
The support pin 30 is supported by the horizontal portion 34b of the support fitting 30, and the connecting pin 45 is removably inserted into the left and right opposing through holes 31 and the communicating hole 44. Hole 46
A split pin 47 is removably attached to the support bracket 30, and the horizontal portion 34b of the second conveyor frame 34 is connected to the support fittings 30 of the left and right columns 29 by the left and right connecting pins 45.

A base end of a hydraulic cylinder device 48 is rotatably mounted vertically on a mounting shaft 49 on the left and right of the inclined portion 34a of the second conveyor frame 34. The tip of the piston rod 50 of the device 48 is connected to and detached from the first conveyor frame 33 by the connecting pin 51 which is detachable.
The left and right mounting holes 39 and the rear mounting holes 28 of the left and right connecting fittings 26 are selectively connected to each other. The tip end portions of the left and right piston rods 50 are always connected to the first conveyor frame by the connecting pin 51.
The left and right attachment holes 39 of the second conveyor frame 33 are connected to the left and right attachment holes 39 of the second conveyor frame 34, and the front ends of the inclined portions 34a of the second conveyor frame 34 are connected to the rear ends of the first conveyor frame 33. The first conveyor frame 33 and the inclined portion 34a of the second conveyor frame 34 are supported in a state of being formed in a state of being inclined in a backward and continuous manner at a gentle inclination angle.

A tension roller 55 is rotatably mounted on the left and right portions of the front end of the horizontal portion 34b of the second conveyor frame 34, and between the tension roller 55 and the left and right sprockets 42 of the rear end. Tension and input sprockets 56 are rotatably mounted on the left and right parts. The upper and lower tension rollers are provided between the sprocket 36 on the left and right of the front end and the sprocket 42 on the left and right of the rear end.
The endless traveling body 52 is rotatably suspended via the 55 and the sprocket 56. This endless traveling body 52 is endlessly formed by the endless chains 53 arranged on the left and right and a large number of conveyor rods 54 mounted side by side at intervals to sift the soil between the left and right endless chains 53. Has been done. In addition, the upper traveling portion of the endless traveling body 52 is provided with a plurality of left and right guide rollers 57 rotatably arranged at intervals in the front-rear direction of the first conveyor frame 33 and the second conveyor frame 34. Supported by. Further, one end of the rotary shaft 43 and one end of the output shaft 12 of the transmission 8 are interlockingly connected via an interlocking medium 58. The endless traveling body 52 of the conveyor 32 is adapted to be rotated clockwise in FIG. 1 according to the output from the transmission 8.

Next, a support frame 59 is attached to a substantially middle portion of the first conveyor frame 33. The support frame 59 has a vertical connecting piece 60 which is vertically erected integrally and fixed to the left and right of the first conveyor frame 33, and a supporting shaft is provided between the upper ends of the left and right connecting pieces 60. A nut body 62 is supported by 61 so as to be vertically rotatable. The lower ends of the support arms 64 are rotatably supported in the vertical direction by the left and right fixing pins 63 that horizontally project from the lower ends of the left and right connecting pieces 60. The left and right portions of the suspension rod 65 are integrally fixed to the upper end portion, and the tip end portion of the arm 66 bent forward is opposed to both end portions of the suspension rod 65 in the left and right direction. A hollow cylindrical shaft support 67 is fixed in a state where the inner end side is inclined to the front side at a predetermined angle with respect to the axis.

An axle 68 is inserted through the left and right shaft supports 67 so that the position of the axle 68 can be adjusted in the left and right directions. A gauge wheel 69 is rotatably mounted on the inner ends of the left and right axles 68 so as to be rotatable relative to each other. Is
The left and right axles 68 are fixed at set positions by lock bolts 70 provided on the shaft support 67 and capable of moving back and forth. The left and right gauge wheels 69 are rotatably mounted in a tilted state with the front side facing outward at a predetermined tilt angle, and are supported so that the distance between them can be adjusted in the left-right direction.

Further, a base end portion of a screw cylinder 72 is vertically rotatably supported by a support shaft 73 between a pair of mounting pieces 71 projecting from an intermediate upper portion of the hanging rod 65 in the left-right direction. Supported by this screw cylinder
A screw shaft portion 75 of a handle 74 rotatably supported by 72 is rotatably screwed into the nut body 62. And
The screw cylinder 72 is moved forward and backward with respect to the nut body 62 by the rotation of the handle 74, and the suspension rod 65 is vertically rotated about the left and right fixing pins 63 via the left and right support arms 64. In addition, the height of the left and right gauge wheels 69 is adjusted.

Further, the left and right portions of the suspension rod 65 are located inside the left and right gauge wheels 69 and are long and vertically fixed plates.
76 are integrally projecting downwardly in parallel, and plate-shaped ridge retainers 77 for pressing both side portions of the ridges are provided at the lower end portions of the left and right fixing plates 76 in vertical and horizontal directions with bolts and nuts 78. The position is adjustable. The left and right ridge pressers 77 are connected and fixed by adjusting the set positions in the vertical and horizontal directions according to the height and width of the ridges.

Next, the soil removing conveyor 79 is located above the hydraulic pump 6 and the engine 7 at the lower end of the second conveyor frame 34 between the inclined portion 34a and the horizontal portion 34b. Are arranged so that they can move freely. The soil removing conveyor 79 is rotatably suspended between a driven roller 80 and a driving roller 81 which are axially mounted so as to be rotatable relative to each other in the front-rear direction, and a driven roller 80 and a driving roller 81 which are disposed in front of and behind the driven roller 80. An endless belt 82 and a rotary shaft 83 having the drive roller 81 are provided on the horizontal portion 34 of the second conveyor frame 34.
The rotation shaft 83 is rotatably mounted on b, and the rotation shaft 83 is rotatably and interlockingly connected to the lower traveling portion of the endless traveling body 52 through an interlocking medium 84. The soil removing conveyor 79 is rotated counterclockwise in FIG. 1 by the output from the interlocking medium 84 driven by the rotation of the endless rotating body 52.

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

The harvester body 1 so as to straddle the ridge A in the field
If it is necessary to adjust the distance between the left and right gauge wheels 69 located in the left and right ridge grooves B according to the width of the ridges, one or both lock bolts of the left and right arms 66 of the support frame 59 can be adjusted. When 70 is loosened and the axle 68 is moved back and forth with respect to the shaft support 67, the left and right gauge wheels 69 are moved forward and backward with the outer expansion tilted, and the left and right gauge wheels 69 are moved. The left and right gauge wheels 69 are adjusted so that the rear end portions thereof are close to both sides of the ridge A, and the lock bolts 70 are tightened again to the shaft support 67, so that the left and right gauge wheels 69 are It is easily set to the interval according to the ridge width.

Further, when it is necessary to adjust the ground contact height of the left and right gauge wheels 69 according to the height of the ridge A in the field, the handle 74 of the support frame 59 is rotated and the handle 74 is rotated.
The screw shaft portion 75 of the screw rod 74 is moved back and forth with respect to the nut body 62, and the suspension rod 65 is supported by the screw cylinder 72 supported by the screw shaft portion 75.
The left and right arms of the suspension rod 65 are pivoted in the up-down direction about the left and right fixing pins 63 via the left and right support arms 64.
The height of the left and right gauge wheels 69 mounted on the shaft 66 is adjusted, and the left and right gauge wheels 69 set the depth of travel of the excavated body 35 with respect to the ridge A.

Further, when it is necessary to adjust the positions of the left and right ridge pressers 77 according to the height of the ridge A in the field and the width of the upper side of the ridge A, the nuts of the bolts and nuts 78 are loosened. Then, adjust the left and right ridge pressers 77 with respect to the left and right fixing plates 76 in the vertical direction or the left and right direction to move the left and right ridge pressers 77 to the ridge A.
Are set so as to follow the upper portions of both sides of the ridge A, and the nuts of the bolts and nuts 78 are tightened again, so that the left and right ridge pressing bodies 77 are set to be advanced along both upper portions of the ridge A.

Next, when the output shaft 12 of the transmission 8 is rotated by the output from the engine 7, the crawler 5 is driven and the endless traveling member 52 of the conveyor 32 is driven.
Is rotated clockwise in FIG. 1 and this endless rolling body is
The sprocket 56 is rotated at the lower part of the turn of 52,
The output from the sprocket 56 causes the endless belt 82 of the soil removing conveyor 79 to rotate counterclockwise in FIG. 1 through the interlocking medium 84. When the harvester main body 1 is advanced by the crawler 5, the left and right gauge wheels 69 of the harvester main body 1 follow the ridges A, and the left and right gauge wheels 69 are moved.
The harvesting machine main body 1 travels along the ridges A by straddling the ridges A by the guiding action of and the traveling depth of the excavated body 35 is supported by the left and right gauge wheels 69.

At this time, the front end portions of the left and right gauge wheels 69 are ridge A.
Since the rear end portions of the left and right gauge wheels 69 are expanded outwardly, and the rear end portions of the left and right end portions of the ridge A are rotated in a state of being inclined toward the both side portions, the left and right gauge wheels 69 are The ends are regulated by the both sides of the ridge A and the rotation progresses,
Therefore, the left and right gauge wheels 69 surely follow along the ridge A, and even when the ridge A is bent, the left and right gauge wheels 69 can ride on the ridge A from the front end and crush the ridge A. To be prevented.

Then, harvested products such as Satsuma potatoes cultivated on the ridge A are sequentially excavated by the excavated body 35, and the harvested product is fed from the rear end of the excavated body 35 to the endless rotation of the conveyor 32. While being carried into the carry-in section of the row body 52, the soil is sifted from between the carrying rods 54 of the endless rolling body 52 and carried to the rear carry-out section. At this time, the harvested products are attached to the first conveyor frame 33 and the second conveyor frame 34 in series by the left and right rotating center shafts 27 and the left and right hydraulic cylinder devices 48, and are gently inclined backward. Since it is transported by the conveyor 32, the harvested product is smoothly transported without being damaged by the impact of the step while sieving the soil.

When the harvested product is sequentially excavated by the excavated body 35, both side portions of the ridge A are sequentially seized by the left and right ridge retainers 77, so that the excavated body 35 produces the ridge A. Even if the soil in the ridge A is pushed up and becomes loose, the ridge A is prevented from collapsing to the side, and the foliage of the harvest that grows on the surface of the ridge A flows to both sides of the ridge A. First conveyor frame
It is possible to prevent entanglement with 33 etc.
The harvested product is smoothly carried into the carry-in section of the endless traveling body 52.

Further, the soil that has been sifted from between the transport rods 54 of the endless traveling body 52 is dropped onto the endless belt 82 of the soil removing conveyor 79, and the endless belt 82 conveys the soil to the harvester main body. It is carried out in front of 1. Therefore, the endless traveling body
It is possible to prevent the hydraulic pump 6 and the engine 7 from being contaminated by soil that has been selected and dropped from between the transport rods 54 of 52.

Further, when the harvested products are successively conveyed to the horizontal portion 34b of the second conveyor frame 34 by the endless traveling body 52, the left and right seats 20 which are displaced to the front and rear in the horizontal portion 34b are provided. The left and right workers select and pick up the harvested products, and these harvested products are sorted according to their size and shape in the containers placed on the left and right container mounting tables 24 of the workers. It is stored. At this time, the left and right seats 20 are installed so that their positions are shifted forward and backward so as not to face each other by horizontally rotating in the front-rear direction around the pillar 14 via the leg rod 15 depending on the work situation. Also, this left and right seat 20
Depending on the position of the
Horizontally pivots in the front-rear direction about a vertical axis 21 via 22 and installs left and right container stands 24 on both sides of the left and right seats 20. Then, defective harvests such as nonstandard products which have not been picked up by the workers on the left and right seats 20 and miscellaneous matters other than the harvests are carried out from the carry-out end of the endless traveling body 52.

Next, when the left and right piston rods 50 are contracted by operating the left and right hydraulic cylinder devices 48 during transportation and storage without harvesting work.
The first conveyor frame 33 is pulled backward, and the first conveyor frame 33 is pulled up and rotated upward in the clockwise direction in FIG.
As shown in FIG. 6, the first conveyor frame 33 is bent substantially upward with respect to the second conveyor frame 34, and is set up in a substantially vertical manner on the front side of the harvester main body 1. The front end portion of the first conveyor frame 33 and the excavated body 35 at the front end portion are posture-changed upward from the grounded state inclining downward and frontward.

Then, the posture of the first conveyor frame 33 is changed to be substantially vertical, so that the front end portion of the first conveyor frame 33 and the excavated body 35 at this front end portion are in a grounded state in which they are inclined downward toward the front. Compared with, the entire length of the harvester in the front-rear direction is shortened and deformed, and this harvester can be prepared for transportation by loading it on a truck, and can also be prepared for storage in a relatively small space. Easy to store. At this time, that is, when the first conveyor frame 33 is pulled up and rotated upward and rearward about the left and right rotation center shafts 27, the front and rear of the first and second conveyor frames 33, 34 are The endless traveling body 52 suspended between the sprockets 36 and 42 is rotated along with the lifting rotation of the first conveyor frame 33, and the endless traveling body 52 rotates the lifting movement of the first conveyor frame 33. No hindrance, first
The conveyor frame 33 is smoothly pulled up and rotated.

Next, when the equipment such as the engine 7 provided on the harvester main body 1 needs to be maintained and inspected, the tip end portion of the piston rod 50 of the left and right hydraulic cylinder devices 48 and the first and second hydraulic cylinder devices 48 are Mounting holes 39 on the left and right sides of the conveyor frame 33
The left and right connecting pins 51, which are connected to each other, are pulled out, and the tips of the left and right piston rods 50 are removed from the left and right mounting holes 39. The tip ends of the left and right piston rods are rotatably connected to the attachment holes 28 formed in the rear portions of the left and right connecting fittings 26 of the harvester main body 1 by the left and right connecting pins 51. In addition, while pulling out the split pins 47 of the left and right connecting pins 45 that connect the rear left and right parts of the second conveyor frame 34 and the rear left and right columns 29 of the harvester main body 1,
The left and right connecting pins 45 are respectively pulled out, and the rear left and right portions of the second conveyor frame 34 are removed from the support fittings 30 of the left and right columns 29.

When the left and right hydraulic cylinder devices 48 are operated to extend the piston rod 50, the left and right piston rods 50 cause the second conveyor frame 34 to rotate the central axis of the front portion of the left and right connecting fittings 26. The second conveyor frame 34 is pivoted up and forwards about 27, and the second conveyor frame 34 is pivoted largely upright as shown in FIG. 7, whereby the upper part of the harvester main body 1 is opened. The second conveyor frame 34 exposes the equipment on the harvester main body 1 in the coated state, that is, the hydraulic pump 6, the engine 7, and the transmission 8. Then, the hydraulic pump 6, the engine 7, and the transmission 8 on the harvester main body 1 are set in a state where they can be maintained and inspected, and they are prepared for the maintenance and inspection.

At this time, the second conveyor frame 34, which is set to be rotated in the upright state, connects the tip end portions of the piston rods 50 to the mounting holes 39 at the rear portions of the left and right connecting fittings 26 fixed to the harvester main body 1. Since the second conveyor frame 34 is supported by the left and right hydraulic cylinder devices 48, the second conveyor frame 34 is securely supported, and the second conveyor frame 34 is prevented from falling on the harvester main body 1. Also, the second conveyor frame
When the 34 is pulled up and rotated forward around the left and right rotation center shafts 27, the endless rotation suspended between the front and rear sprockets 36 and 42 of the first and second conveyor frames 33 and 34 is performed. The body 52 rotates along with the pulling-up rotation of the second conveyor frame 34, and the endless rolling body 52 does not hinder the pulling-up rotation of the second conveyor frame 34, and the second conveyor frame 34 is smoothly pulled up and rotated.

[0040]

According to the present invention, the first conveyor frame, which is arranged so as to project in front of the harvester main body, has the rear left and right portions of the connecting metal fittings fixed to the front left and right portions of the harvester main body. The second conveyor frame, which is rotatably supported in the up-and-down direction on the rotation center axis and is inclined rearward and upward and is disposed on the harvester main body, has its front end left and right portions rotated to the left and right. The tip end portions of the piston rods of the left and right hydraulic cylinder devices are attached to the central shaft and are inclined rearward and upward, and the base end portions of the second conveyor frame are pivotally attached to the front left and right portions of the second conveyor frame. The first conveyor frame is rotatably connected to the rear left and right parts, and the first and second hydraulic cylinder devices are connected to the first conveyor frame.
Since the conveyor frame and the second conveyor frame are attached to form a series of conveyors that are gently inclined backwards, the conveyors can be easily set to be inclined upwards at a gentle inclination during harvesting work. It is possible,
It is possible to convey the harvested product without impacting the harvested product with a step due to the soil being sifted by the conveyor, and therefore, the harvested product can be smoothly transported without being damaged. It is suitable for harvesting sweet potatoes and potatoes, which are easily damaged. Further, since the left and right portions of the rear end of the first conveyor frame and the left and right portions of the front end of the second conveyor frame are pivotally supported by the common left and right rotation center shafts,
The alignment between the first conveyor frame and the second conveyor frame is easy and can be easily installed in series.

During transportation or storage without performing harvesting work, the left and right hydraulic cylinder devices are operated to contract the piston rods, so that the first conveyor frame moves rearward and upward about the left and right rotation center axes. It is possible to easily pull up and rotate toward the front side of the harvester main body to set up easily, so that the overall length of the harvester in the front-back direction can be shortened as a whole and downsized. It is possible to carry the product by loading it in a storage space, and it can be stored in a relatively small storage space, which facilitates the transportation and the storage work. Therefore, it is possible to provide a harvester having excellent workability and suitable for transportation and storage.

[Brief description of drawings]

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

FIG. 2 is a plan view of the same.

FIG. 3 is an enlarged perspective view of the above conveyor frame connecting portion.

FIG. 4 is a transverse plan view of the same.

FIG. 5 is an enlarged perspective view of a rear side support portion of the second conveyor frame of the above.

FIG. 6 is a side view showing the upright state of the first conveyor frame of the above.

FIG. 7 is a side view showing the upright state of the second conveyor frame of the above.

[Explanation of symbols]

 1 Harvester main body 5 Traveling device 26 Coupling metal fitting 27 Rotation center shaft 32 Conveyor 33 First conveyor frame 34 Second conveyor frame 35 Digging body 48 Hydraulic cylinder device 50 Piston rod 52 Endless traveling body

Claims (1)

[Claims] Claim: What is claimed is: 1. A harvester main body equipped with a traveling device, a conveyor having an endless moving body which is provided in the main body of the harvester and conveys a harvested product toward a rear unloading section while sieving the soil, and harvesting from a ridge. It consists of a dugout body that digs up an object and carries it into the conveyor, and the harvester main body is fixed to the front left and right portions of the connecting metal fittings, and the turning center shaft is attached to the left and right connecting metal fittings. The conveyors are provided on the harvester main body, and the conveyor is provided on the harvester main body, the conveyor being provided with the dugout body at a front end portion thereof so as to project in front of the harvester main body. A second conveyor frame, and the endless rolling body suspended between the first conveyor frame and the second conveyor frame so that the endless traveling body is suspended between the first conveyor frame and the second conveyor frame. The left and right parts are the left and right rotation center axes The second conveyor frame is attached to the left and right rotation center shafts at the left and right front center parts of the second conveyor frame, and the second conveyor frame is mounted on the harvester main body. And the rear end of the second conveyor frame is rotatably attached to the front left and right portions of the second conveyor frame, and the tip end portions of the piston rods of the left and right hydraulic cylinder devices are attached to the front end portions of the second conveyor frame. The first conveyor frame is rotatably connected to the rear left and right portions, and the left and right hydraulic cylinder devices are provided to support the first conveyor frame and the second conveyor frame so as to be rearwardly and upwardly connected. Harvester characterized by a series of gently sloping conveyors.