JPH0614629A - Harvester - Google Patents

Abstract

PURPOSE:To provide a harvester ensuring a conveyor standingly rotated forward from above the harvester body to be supported, the danger of conveyor falling to be prevented, and securing the safety of the maintenance and inspection works for the equipment on the harvester body. CONSTITUTION:A revolving center shaft 27 is projected in the front of connecting fitments 26 set on the left and right parts of the front side of a harvester body 1, and a fitting part 28 is provided in the rear. Stays 29 are set vertically on the left and right parts of the rear side of the harvester body 1. A conveyor 32 bears the first and second conveyor frames 33,34. The left and right parts of the rear end of the first conveyor frame 33 and the left and right parts of the front end of the second conveyor frame 34 are revolvably axially supported at the left and right revolving central shafts 27, respectively. The left and right parts of the rear side of the second conveyor frame 34 are detachably fitted to the left and right of the stays 29, respectively. The piston rod 50 of a hydraulic cylinder 48 axially fitted to the second conveyor frame 34 is optionally connected to the fitting part 39 of the first conveyor frame 33 or the fitting parts 28 of the connecting fitments 28.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art Conventionally, as a harvester for harvesting this type of harvested product, as disclosed in, for example, Japanese Utility Model Laid-Open No. 58-24129, the front end left and right portions of a harvester main body provided with a traveling device. A horizontal shaft is provided on the left and right, and the rear left and right parts of the lifting conveyor are rotatably supported in the front-rear direction on the left and right horizontal shafts, and the upper left and right parts of the lifting conveyor and the upper left and right parts of the harvester body are left and right. Removably connected by a supporting arm of the lifting conveyor, horizontal shafts are provided on the lower left and right sides of the front side of the lifting conveyor, and the rear end of the inclined conveyor having the excavated body on the left and right horizontal shafts is vertically rotatable. The cylinder is rotatably supported, and the base end of the cylinder device is rotatably mounted on the front upper part of the lifting conveyor. The tip end of the piston rod of the cylinder device is rotatably mounted on the rear upper part of the inclined conveyor. The structure is known.

[0003]

In the structure described in the above publication, when the equipment such as the engine provided on the harvester main body is to be maintained and inspected, first, the piston rod of the cylinder device is extended and tilted. After the excavator of the conveyor is grounded to the ground, the left and right support arms are removed and the lifting conveyor is unlocked, the piston rod of the cylinder device is gradually contracted, and the lifting conveyor is centered on the front, rear, left, and right horizontal axes. It is intended to be erected by lowering and turning forward, but at this time, due to the difference in weight balance between the lifting conveyor and the inclined conveyor, that is, the lifting conveyor inclined backward to the harvester main body. Even if the piston rod of the cylinder device contracts due to the weight of the lifting device, the lifting conveyor does not rotate smoothly forward, In some cases, the inclined conveyor may be lifted and rotated rearward with respect to the horizontal conveyor about the left and right horizontal axes, so that the lifting conveyor cannot always be smoothly and positively rotated forward toward the front. There are many problems, and there is a problem in that it is not possible to promptly deal with the need to maintain and inspect equipment such as the engine on the harvester body.

Further, when the lifting conveyor is erected, the relationship between the lifting conveyor and the inclined conveyor is held by the cylinder device. The lifting conveyor is arranged in the longitudinal direction on the left and right horizontal axes of the harvester main body. Since it is rotatably supported only and is not supported by the harvester main body, it is unstable to hold the lifting conveyor upright, and there is a risk that the lifting conveyor will fall down to the harvester main body side. There is a problem that it is not preferable in securing the property.

Therefore, the present invention has been made in view of such a point, and the rear side portion of the conveyor can always be smoothly and reliably erected and rotated forward, and the engine on the harvester main body can be rotated. It is possible to quickly respond to the need to maintain and inspect equipment such as, and also to reliably and stably maintain the standing state of the rear side of the conveyor, and the rear side of the conveyor is located on the harvester body side. It is an object of the present invention to provide a harvester that can ensure safety without the risk of falling.

[0006]

The harvester of the present invention comprises a harvester main body equipped with a traveling device, and a carry-in portion provided on the harvester main body which is inclined forward and downward of the harvester main body to project and remove soil. While having a conveyor having an endless traveling body that conveys the harvest toward the rear unloading section, and a dugout body that digs the harvest from the ridges provided at the front end of this conveyor and carries it into the conveyor loading section. A device for driving the traveling device and the endless traveling body of the conveyor, which is provided on the lower part of the rear side of the conveyor, and which is provided on the main body of the harvester. The connecting metal fittings are fixed to each other, and the pivoting center axes are respectively provided to the front portions of the left and right connecting metal fittings so as to face each other, and the mounting portions are formed to face each other at the rear portions of the left and right connecting metal fittings. Supports are installed upright on the left and right sides, and , First with the drilling Okoshitai a front end portion
And a second conveyor frame that is connected to the rear end of the first conveyor frame and is disposed on the device. The left and right portions of the rear end of the conveyor frame are axially attached, and the left and right portions of the front end of the second conveyor frame are rotatably supported in the up and down direction on the left and right rotation center shafts, and the left and right columns are provided with the The rear left and right portions of the second conveyor frame are detachably attached, 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 the left and right hydraulic pressures are The tip end portion of the piston rod of the cylinder device is selectively and detachably connected to the rear left and right portions of the first conveyor frame and the attachment portions of the left and right connecting fittings.

[0007]

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.

Next, when it is necessary to maintain and inspect equipment such as an engine provided on the harvester main body,
Remove the tips of the piston rods of the left and right hydraulic cylinder devices from the rear left and right sides of the first conveyor frame, and connect the tips of the left and right piston rods to the attachments at the rear of the left and right connecting fittings of the harvester body. . Also, the rear left and right portions of the second conveyor frame are removed from the rear left and right columns of the harvester main body.

Then, when the left and right hydraulic cylinder devices are operated to extend the piston rod, the second conveyor frame is moved forward by the left and right piston rods about the center of rotation of the front portion of the left and right connecting fittings. The harvester main body is opened by pivoting the second conveyor frame to a large upright position, and the equipment on the harvester main body covered by the second conveyor frame is opened. Exposed. Then, the equipment on the harvester main body is set in a state where it can be easily maintained and inspected.

At this time, the second conveyor frame, which is set to be rotated in the standing state, has the left and right hydraulic cylinders in which the tip portions of the piston rods are connected to the mounting portions at the rear of the left and right connecting fittings fixed to the harvester body. Since it is supported by the device, the support of this second conveyor frame is reliable, and there is no risk of the second conveyor frame falling over to the equipment side on the harvester main body, and therefore safety when maintaining and inspecting the equipment. Is secured.

[0011]

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 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 portion 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 a sprocket 42 at both ends is rotatably mounted between the rear ends of the horizontal portions 34b of the second conveyor frame 34, and is positioned 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 portion of a hydraulic cylinder device 48 is rotatably mounted vertically on a mounting shaft 49 on the left and right sides 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 front ends of the horizontal portion 34b of the second conveyor frame 34. The tension roller 55 is mounted between the tension roller 55 and the sprocket 42 on the left and right ends. 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 interlocked and coupled 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-right direction, and 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 axially rotatably supported by a support shaft 73 in a vertical direction between a pair of mounting pieces 71 projecting from an upper middle portion of the suspension 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, fixed plates located on the left and right sides of the suspension rod 65 are located inside the left and right gauge wheels 69 and are long in the vertical direction.
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, at the lower end of the second conveyor frame 34 between the inclined portion 34a and the horizontal portion 34b, the soil removing conveyor 79 is located above the hydraulic pump 6 and the engine 7. 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.
Via the left and right support arms 64 of which the left and right fixing pins 63 are pivoted in the vertical direction, and the left and right gauge wheels 69 pivotally mounted on the left and right arms 66 of the suspension rod 65 are adjusted in height. The depth of travel of the excavated body 35 with respect to the ridge A is set by the left and right gauge wheels 69.

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, a harvested product such as a Satsuma yam cultivated on the ridge A is sequentially dug up 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, that is, when the harvested products are sequentially dug up by the dug body 35,
Since both side portions of the ridge A are sequentially pressed by, the ridge A is prevented from collapsing to the side portion even if the soil of the ridge A is pushed up by the excavated body 35 and becomes soft. It is prevented that the foliage of the harvested product that proliferates on the surface of the ridge A flows in both sides of the ridge A and is not entangled with the first conveyor frame 33, etc. Therefore, the harvested product dug up by the excavator 35 is endless. It is smoothly carried into the carry-in section of the 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 it is necessary to maintain and inspect equipment such as an engine provided on the harvester main body 1, the tips of the piston rods 50 of the left and right hydraulic cylinder devices 48 and the first conveyor. Mounting holes 39 on the left and right sides of the 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. Then, the tip ends of the left and right piston rods 50 are aligned with the mounting holes 28 formed in the rear portions of the left and right connecting fittings 26 of the harvester main body 1, and the tip ends of the left and right piston rods 50 are moved to the left and right. Left and right connecting pins 51 are rotatably connected to the mounting hole 28. Further, 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 posts 29 of the harvester main body 1 are pulled out, respectively, and the left and right connecting pins 45 are removed. Each is 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 upwards about 27, and the second conveyor frame 34 is pivoted to a large upright position to open the upper part of the harvester main body 1 as shown in FIG. 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 upright, connects the tip end portions of the piston rods 50 to the mounting holes 28 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.

Next, at the time of moving or storing without performing harvesting work, the tip ends of the piston rods 50 of the left and right hydraulic cylinder devices 48 are connected by the connecting pins 51 to the first conveyor frame.
When the left and right hydraulic cylinder devices 48 are operated and the piston rods 50 are contracted in a state where they are connected to the left and right mounting holes 39 of the 33, the first conveyor frame 33 having the gauge wheel 69 is formed by the left and right piston rods 50. The left and right connecting metal fittings 26 are pulled up and rotated in the clockwise direction in FIG. 1 about the rotation center axis 27, and the first conveyor frame 33, the excavated body 35 of the first conveyor frame 33, and the left and right gauges. The wheel 69 is pulled up above the front of the harvester body 1. Therefore, compared to the total length of the harvester in the front-rear direction during harvesting work, the total length in the front-rear direction is greatly reduced, enabling self-propelled movement, and when moving or storing by loading on a truck that does not perform harvesting work. Will be easier.

In the above embodiment, the case where the rear left and right parts of the second conveyor frame 34 are detachably connected to the support fittings 30 of the left and right columns 29 by the connecting pins 45 has been described. For example, as shown in FIG. 7, the rear left and right portions of the second conveyor frame 34 and the left and right columns 29 may be detachably connected by a catch clip 85. In this case, the hooks 86 of the catch clips 85 are fixed to the left and right parts of the rear side of the second conveyor frame 34, and the main body 87 of the catch clips 85 is fixed to the upper ends of the left and right columns 29. An operation ring 89 pivotally supported by a support shaft 88 is attached with an engagement ring 90 that engages with and disengages from the hook 86, and the second support is attached to the upper ends of the left and right columns 29. A horizontal support plate 91 on which the lower ends of the left and right rear sides of the conveyor frame 34 are placed is fixed.

With this structure, the connecting pin 45 can be inserted and removed and the connecting pin 45 can be inserted and removed as in the above-described embodiment.
The engaging ring 90 is engaged and disengaged with respect to the hook 86 by the turning operation of the operation lever 89 without the need to remove and insert the split pin 47 to and from the left and right rear side portions of the second conveyor frame 34. It can be easily and detachably connected to the column 29.

[0041]

According to the present invention, the pivoting center axis is horizontally projected from the front part of the connecting metal fitting fixed to the front left and right sides of the harvester main body, and the first pivoting center axis is provided on the left and right pivoting center axes. The rear end left and right parts of the conveyor frame are pivotally attached, and the front end left and right parts of the second conveyor frame are rotatably supported in the up and down direction on the left and right rotation center shafts. Left and right hydraulic pressures, which are detachably attached to the stanchions standing upright to the rear left and right sides of the harvester body, and pivotally attached to the front left and right sides of the second conveyor frame. Since the tip end portion of the piston rod of the cylinder device is selectively and detachably connected to the rear left and right portions of the first conveyor frame and the mounting portions formed at the rear portions of the left and right connecting fittings, The first end of the piston rod of the hydraulic cylinder device of By connecting to the rear left and right parts of the conveyor frame, the first conveyor frame is inclined to the front lower part of the harvester main body at the front end part of the second conveyor frame by the left and right rotation center shafts and the left and right hydraulic cylinder devices. It can be easily installed in a series in the state of being set, and a conveyor of a predetermined length necessary for conveying the harvested product while sifting off the soil with the first and second conveyor frames can be easily constructed. .

Further, by connecting the tip end portions of the piston rods of the left and right hydraulic cylinder devices to the mounting portions formed at the rear portions of the left and right connecting fittings, and extending the piston rods,
The second conveyor frame can be smoothly and securely erected from the top of the harvester to the front around the center of rotation of the left and right, and the equipment such as the engine on the harvester is maintained and inspected. The need to be able to be addressed quickly.

Further, since the tip portions of the left and right piston rods are connected to the mounting portions of the left and right connecting fittings fixed to the front left and right portions of the harvester main body, the second conveyor frame is the hydraulic cylinder device connected to the harvester main body. Supported by the second
The upright state of the conveyor frame can be reliably and stably maintained, and the risk of the second conveyor frame falling over to the harvester body side is reliably prevented, and equipment maintenance and
The safety of inspection work can be ensured.

[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 second conveyor frame of the above.

FIG. 7 is an enlarged side view of a rear side support portion of a second conveyor frame showing another embodiment.

[Explanation of symbols]

 1 Harvester main body 5 Traveling device 6,7 Equipment 26 Coupling metal fitting 27 Rotation center axis 28 Mounting part 29 Struts 32 Conveyor 33 First conveyor frame 34 Second conveyor frame 35 Excavator 48 Hydraulic cylinder device 50 Piston rod 52 Endless traveling body

Claims (1)

[Claims] 1. A harvester main body equipped with a traveling device, and a harvesting unit provided on the harvester main body is inclined toward the front lower part of the harvester main body so as to project the soil, and the crops are directed toward a rearward transporting section. A conveyor having an endless traveling body to convey, a dugout body provided at the front end of the conveyor to dug the harvested product from the ridges and bring it into the carry-in section of the conveyor, and a rearward lower part of the conveyor. And a device for driving the endless traveling body of the traveling device and the conveyor provided on the harvester main body, the harvester main body is fixed to the front left and right parts with connecting metal fittings, and In the front part of the connecting metal fittings, the pivoting central axes are provided so as to face each other, the mounting parts are formed opposite to the rear parts of the left and right connecting metal fittings, and the columns are erected upright on the rear left and right parts. The conveyor has the excavated body at the front end. Of the first conveyor frame and a second conveyor frame continuously provided at the rear end portion of the first conveyor frame and disposed on the device. The left and right portions of the rear end of the conveyor frame are axially attached, and the left and right portions of the front end of the second conveyor frame are rotatably supported in the up and down direction on the left and right rotation center shafts, and the left and right columns are provided with the The rear left and right portions of the second conveyor frame are detachably attached, 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 the left and right hydraulic pressures are A harvester, wherein a tip end portion of a piston rod of a cylinder device is selectively and detachably connected to a rear left and right portion of the first conveyor frame and mounting portions of the left and right connecting fittings.