JP2833930B2 - 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 harvester, for example,
The present invention relates to a self-propelled type for harvesting crops of underground tubers such as sweet potatoes and potatoes.

[0002]

2. Description of the Related Art Conventionally, as a harvester for harvesting this kind of harvest, for example, as described in Japanese Utility Model Laid-Open Publication No. Sho 59-87216, a harvester body equipped with a traveling device is mounted rearward. An inclined slat conveyor and a belt conveyor connected to the rear end of the slat conveyor, and a scraper for digging up crops protruding from a ridge at the front end of the slat conveyor, and both ends of an axle provided at the front end of the slat conveyor There is known a structure in which left and right gauge wheels running in a ridge groove are arranged in parallel to each other and rotatably mounted on a shaft.

[0003]

In the structure described in the above publication, the left and right gauge wheels are mounted on both ends of the axle, so that the distance between the left and right gauge wheels is adjusted to the ridge width in the left and right direction. The harvesting work may be difficult depending on the ridge width of the field, and the left and right gauge wheels are parallel to each other with the same distance between the front end and the rear end. Because it is mounted, it is often difficult to make the left and right gauge wheels follow along the ridge,
The work of excavating the crop by the scraper may not be performed sufficiently, and there is a problem particularly when the harvesting operation and the sorting operation of the crop are performed while the vehicle is driven by itself.

In view of the above, the present invention has been made in view of the above circumstances, and allows the left and right gauge wheels to follow the ridge so as to follow the ridge. It is possible to easily perform the harvesting work and the sorting work of the crop while running by themselves, and also to adjust the interval between the left and right gauge wheels in the left and right direction according to the ridge width, An object of the present invention is to provide a harvester excellent in workability without making the harvesting work difficult due to the ridge width of the field.

[0005]

[Means for Solving the Problems]BookThe inventive harvester travels
Harvester body with the device and
thisIncline and project forward and downward from the harvester bodyThe front end
The harvested goods brought into this loading sectionSieve the soil
DropAfterConveyors to be transported to the
On the conveyorIn front of the loading sectionDigging crops from ridges
RiseThis cropExcavated object to be carried into the conveyor
And rotatably provided in front and left of this excavated bodyThe ridge
ofTraveling in the furrowThe excavated body is excavated to regulate the excavation depth of the crop.
SystemLeft and right gauge wheels,With, The conveyorTo
IsHas arms on the left and right in front of the excavated bodyHanging rod
Adjustable position verticallyThe supporting frame that was supportedSetting
KeThe left and right gauge wheels areHanging rodofLeft and right arm
BeforeIt expands and slopes towardThe rear ends are both ridges
Close to the sideRotate freely in the stateAnd interval adjustment in the horizontal direction
FreelyIt is mounted on a shaft.

[0006]

[0007]

According to the harvester of the present invention, the main body of the harvester is arranged so as to straddle the ridge of the field, and the position of the hanging rod of the support frame in the vertical direction is adjusted according to the height of the ridge of the field. the left and right of the gauge wheels which are Jikuka to the arm of the left and right of the hanging rod is Ru is adjusted height. Then, every time the depth against the soil of the ridge of HoOkoshi body at the left and right of the gauge wheels, ie HoOkoshi body travels through the soil
It is regulated to the depth at which the crop is dug .

Next, when the main body of the harvester is advanced by the operation of the traveling device, the left and right gauge wheels of the main body of the harvester follow the ridges and advance, and the main body of the harvester is guided by the left and right gauge wheels. Is advanced along the ridge over the ridge, and the excavated body is restricted in depth by these left and right gauge wheels.
And proceed . At this time, the left and right gauge wheels are expanded and inclined forward with respect to both sides of the ridge, and the rear end is rotated in a state of being inclined close to both sides of the ridge. Each of the gauge wheels is rotated with its rear end regulated at both sides of the ridge, so that the left and right gauge wheels follow the ridge reliably, and the left and right gauge wheels ride on the ridge from the front end. Raising and crushing the ridges is prevented.

[0009] Then, the crops grown on the ridges are sequentially dug up by the excavated body, and the harvested goods are carried into the carry-in portion of the conveyor from the rear end of the excavated body, and are also conveyed by the conveyor. And is conveyed toward the rear unloading section while sifting the soil.

Further, when advancing and retracting one or both of the left and right gauge wheel located on the left and right ridge grooves to fit the ridge width in the lateral direction, the gauge wheel of the right and left in the state in which flared inclined toward the front The gap is adjusted in the left and right direction, the left and right gauge wheels are adjusted in position so that the rear ends of the left and right gauge wheels are close to both sides of the ridge, and the gap between the left and right gauge wheels is easily adjusted according to the ridge width It is Installation.

[0011]

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

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 at the upper part, and crawlers 5 as traveling devices are provided at the lower parts on the left and right sides of the frame. A hydraulic pump 6, an engine 7 and a transmission 8 are sequentially arranged and fixed on the frame 2 in the front-rear direction, and a rotating shaft 9 of the hydraulic pump 6 and a rotating shaft 10 of the engine 7 are connected via an interlocking medium 11. The rotating shaft 10 of the engine 7 and the output shaft 12 of the transmission 8 are linked and connected via a linking medium 13.
The output from the engine 7 drives the crawler 5.

Step 4 on the left and right of the frame 2
A hollow cylindrical column 14 is vertically and integrally fixed upright at a substantially middle portion in the front-rear direction, and the left and right columns 14 are vertical portions of a leg 15 formed in a substantially L-shape in side view. 16 is rotatably fitted in a horizontal direction, and a seat 20 is freely rotatable in a horizontal direction via a support shaft 19 on a vertical bearing 18 formed at the tip of a horizontal portion 17 of the leg rod 15. It is mounted on a shaft. 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 of the left and right seats 20 are changed.

Steps 4 on the left and right of the frame 2
Vertical shafts 21 are integrally protruded in the vicinity of both ends in the front-rear direction, and one end of a support piece 22 is rotatably supported in the left-right front-rear vertical shaft 21 in a horizontally rotatable manner. A container mounting table 24 is rotatably supported at the other end of the piece 22 via a support shaft 23. And the left and right container table
The 24 is horizontally rotated in the front-rear direction about the respective vertical shafts 21 via the support pieces 22, and the position to be installed in the front-rear direction is changed.

Next, a mounting frame 25 which is long in the left-right direction is integrally fixed to the front end of the frame 2, and connecting fittings 26 are integrally fixed to both ends of the mounting frame 25 in the left-right direction. A conveyer 27 is connected to the connecting fitting 26.
The conveyor 27 projects forward with its front side inclined toward the lower front of the harvester main body 1 and its rear side positioned horizontally between the left and right seats 20 and the container table 24 and projected horizontally. A sprocket 30 is fixed to both ends of a rotating shaft 29 that is suspended between the front ends of the conveyor frame 28 and a rear end of the conveyor frame 28. Sprockets 32 are fixed to both ends of the drive shaft 31 and the conveyor frame.
The upper rotating shaft 33 suspended vertically above and below the front of the 28 horizontal parts
A tension roller 34 is fixed to both ends of the rotary shaft 35, and a tension and input sprocket 36 is fixed to both ends of the lower rotating shaft 35, respectively.

An endless revolving body 37 is suspended between the front left and right sprockets 30 and the rear right and left sprockets 32 via the upper and lower left and right tension rollers 34 and 36. . The endless revolving body 37 is formed endlessly by an endless chain 38 disposed on the left and right and a number of transport rods 39 arranged in parallel with a space between the left and right endless chains 38 for sifting the soil. Have been. The drive shaft
One end of the transmission 31 and one end of the output shaft 12 of the transmission 8 are linked to each other via a linking medium 40. The endless revolving body 37 of the conveyor 27 is revolved clockwise by the arrow from FIG. 1 by the output from the transmission 8.

Next, between the front ends of the conveyor frame 28, a digging body 41 such as a tip is located in front of the left and right sprockets 30 and integrally protrudes in a state inclined forward and downward. Have been. The excavated body 41 digs up the crop and carries it into the carry-in section of the conveyor 27. A support frame 42 is provided near the front end of the conveyor frame 28.

The support frame 42 has a vertical connecting piece 43 which is integrally erected and fixed integrally with the vicinity of the front end of the conveyor frame 28.
Both ends of a left-right support rod 44 are integrally fixed between the upper ends of the support rods 44, and a nut 46 is supported by a support shaft 46 between a pair of mounting pieces 45 protruding from the middle upper part of the support rod 44 in the left-right direction. A body 47 is supported rotatably in the up-down direction. A lower end of a support arm 49 is rotatably supported in the up and down direction on left and right fixing pins 48 which are integrally protruded in a horizontal direction from lower ends of the left and right connection pieces 43. The left and right portions of the hanging rod 50 are integrally fixed to the upper end of 49, and the arms 51 are integrally bent toward the front at both left and right ends of the hanging rod 50.

A hollow cylindrical shaft support 52 is integrally formed at the distal end of the opposed arm 51 with its inner end side inclined forward by a predetermined angle with respect to the horizontal axis. I have. Also, an axle 53 is inserted through the left and right axle supports 52 so as to be adjustable in the left and right direction, and a gauge wheel 54 is rotatably mounted on the inner end of the left and right axle 53 so as to be rotatable relative to each other. The left and right axles 53 are fixed at set positions by lock bolts 55 provided on the shaft support 52 and capable of moving forward and backward. The left and right gauge wheels 54 are rotatably supported in a state where the front side faces outward and is inclined forward and wide at a predetermined inclination angle, and is supported so that the interval can be adjusted in the left and right direction. I have.

A base end of a screw cylinder 57 is rotatably supported by a support shaft 58 in a vertical direction between a pair of mounting pieces 56 protrudingly provided at the middle upper portion of the hanging rod 50 in the left-right direction. Supported, this screw cylinder
A screw shaft portion 60 of a handle 59 rotatably supported by 57 is rotatably screwed into the nut body 47. And
With the rotation of the handle 59, the screw cylinder 57 is moved forward and backward with respect to the nut body 47, and the hanging rod 50 is rotated vertically with the left and right support pins 49 around the left and right fixing pins 48, The height of the left and right gauge wheels 54 is adjusted.

Further, on the left and right portions of the hanging rod 50, fixed plates which are located inside the left and right gauge wheels 54 and which are long in the vertical direction are provided.
61 are integrally formed so as to project downward and in parallel with each other. At the lower ends of the left and right fixing plates 61, mounting holes 62 which are vertically long are formed. Further, a plate-like ridge holding member 64 for pressing both sides of the ridge is integrally fixed to one end of each of the mounting plates 63 attached to the left and right fixing plates 61, and is attached to the other end of the left and right mounting plates 63. A communication hole 65 communicating with the mounting hole 62 of the left and right fixing plates 61 is formed in the length direction of the mounting plate 63. And
The left and right mounting plates 63 are superposed from the lateral direction in a state in which the ridge pressing bodies 64 are disposed inside the left and right fixing plates 61 so as to face each other, and the left and right overlapping portions are respectively attached to the mounting holes 62 and the mounting holes. Bolts and nuts 66 inserted into the communication holes 65 communicating with the holes 62
And the left and right ridge holding bodies 64 are connected and fixed by the bolts and nuts 66 so that the set positions can be adjusted vertically and horizontally according to the height and width of the ridge. .

The lower end of the conveyor frame 28 between the inclined portion and the horizontal portion is provided with the hydraulic pump 6.
And a soil removal conveyor located above the engine 7.
67 are freely rotatable. This soil removal conveyor
67 is a driven roller 68 and a driving roller 69 which are rotatably disposed in front and rear relative to each other, and an endless belt 70 which is suspended between the driven roller 68 and the driving roller 69 which are front and rear.
And a rotating shaft 71 having the driving roller 69 is rotatably mounted on a horizontal portion of the conveyor frame 28. An endless chain 74 is suspended between a sprocket 72 fixed to one end of the rotating shaft 71 and a sprocket 73 fixed to one end of the rotating shaft 71. The soil expulsion conveyor 67 is configured to rotate in the counterclockwise direction in FIG. 1 by an output from a sprocket 36 driven by the rotation of the endless revolving body 37 of the conveyor 27. .

The conveyor frame of the conveyor 27
Reference numeral 28 denotes a front portion 28a provided with a support frame 42 having the left and right gauge wheels 54, and a rear portion 28b disposed between the left and right seats 20 and the container table 24 and an inclined portion following the front portion 28a. The front part 28a and the rear part 28b are rotatably connected to each other by a pin 75 so that the connecting part and the connecting bracket 26 are rotatably connected to the rear part 28b at the front and rear parts of the pin 75. Is rotatably mounted on the base end of the cylinder device 76, and rotatably mounted on the front portion 28a of the front end portion of the piston rod 77 of the cylinder device 76,
During the operation, the front portion 28a and the rear portion 28b are integrally connected by the pins 75 and the cylinder device 76 so that the crops can be transported. In addition, when loading or moving the tractor to a tractor where harvesting is not performed, the cylinder device 76 is operated to move the rear portion 28 around the pin 75 as shown by the chain line in FIG.
The front part 28a is pivoted upward with respect to b and lifted.

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

Harvester body 1 so as to straddle ridge A in the field
When it is necessary to adjust the interval between the left and right gauge wheels 54 located in the left and right ridge grooves B according to the ridge width, one or both lock bolts of the left and right arms 51 of the support frame 42 are required. When the axle 53 advances and retreats in the left-right direction with respect to the shaft support 52, the left and right gauge wheels 54 are adjusted in the left-right direction while being expanded and inclined forward. The position of the left and right gauge wheels 54 is adjusted so that the rear ends of the left and right gauge wheels 54 are close to both sides of the ridge A, and the lock bolt 55 is tightened to the shaft support 52 again. Accordingly, the left and right of the gauge wheels 54 is easily Installation in spacing to match the ridge width.

When it is necessary to adjust the contact height of the left and right gauge wheels 54 according to the height of the ridge A in the field, when the handle 59 of the support frame 42 is turned,
The screw shaft portion 60 of 59 is advanced and retracted with respect to the nut body 47, and the hanging rod 50 is supported by a screw cylinder 57 supported by the screw shaft portion 60.
There is rotated in the vertical direction around the left and right fixing pin 48 through the left and right support arms 49, Ru left and right gauge wheels 54 Jikuka the left and right arms 51 of the lifting rod 50 is adjusted height .
The depth degree against the soil ridges A of HoOkoshi body 41 at right and left of the gauge wheels 54, i.e. yield HoOkoshi 41 progresses the soil
It is regulated by the depth of excavation .

Further, when it is necessary to adjust the positions of the left and right ridge pressing bodies 64 in accordance with the height of the ridge A in the field and the width of the upper portion on both sides of the ridge A, loosen the nuts of the bolts and nuts 66. Then, the mounting plate 63 of the left and right ridge holding bodies 64 is adjusted vertically or horizontally with respect to the left and right fixing plates 61 through the bolts of the bolts and nuts 66 so that the left and right ridge holding bodies 64 are on both sides of the ridge A. Set it along the top, and then bolt and nut again
By tightening 66 nuts, these left and right ridge holding bodies
64 are fixed so as to advance along the upper sides on both sides 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 revolving body 37 of the conveyor 27 is driven.
Is rotated clockwise in FIG. 1 and the endless rotating body
The sprocket 36 is rotated at the lower part of the folded back of 37,
The output from the sprocket 36 causes the endless belt 70 of the soil removing conveyor 67 to rotate in the counterclockwise direction of the arrow in FIG. When the harvester main body 1 is advanced by the crawler 5, the left and right gauge wheels 54 of the harvester main body 1 follow the ridge A and advance. Is advanced along the ridge A across the ridge A, and the excavated body 41 is
The digging depth is regulated and advanced .

At this time, the left and right gauge wheels 54 have their front ends expanded outward with respect to both sides of the ridge A, and their rear ends are inclined close to both sides of the ridge A. Since the left and right gauge wheels 54 are rotated in the state, the rear ends of the left and right gauge wheels 54 are regulated by the both sides of the ridge A, and the left and right gauge wheels 54 are reliably rotated along the ridge A. Even when the ridge A is bent, the left and right gauge wheels 54 are prevented from climbing on the ridge A from the front end and crushing the ridge A.

Then, a harvest C, such as sweet potato, grown on the ridge A is dug out by the excavator 41 in sequence, and the harvest C is transferred from the rear end of the excavator 41 to the conveyor 27. Endless revolving body
While being carried into the carry-in portion 37, the soil is conveyed toward the rear carry-out portion while the soil is sieved from between the transport rods 39 of the endless revolving body 37. In this case, that is, the excavated body 41
When the crops C are sequentially excavated at, the both sides of the ridge A are sequentially pressed by the left and right ridge pressing bodies 64, so that the excavated bodies 41 are formed.
Even if the soil of ridge A is pushed up sequentially and becomes soft and soft, ridge A
Is prevented from collapsing to the side and the ridge A
Is prevented from flowing along both sides of the ridge A and becoming entangled with the conveyor frame 28 or the like. Therefore, the crop C excavated by the excavator 41 is prevented.
Is smoothly carried into the carry-in section of the endless revolving body 37.

The soil sieved from between the transporting rods 39 of the endless revolving body 37 is transferred to an endless belt of a soil removing conveyor 67.
It is conveyed by the endless belt 70 and carried out to the front of the harvester main body 1. Therefore, the endless revolving body 37
This prevents the hydraulic pump 6 and the engine 7 from being contaminated by soil that has been selected and dropped from between the transport rods 39.

Further, when the crop C is sequentially conveyed to the horizontal portion on the rear side of the endless revolving body 37 by the endless revolving body 37, the left and right seats whose front and rear positions are shifted to the horizontal portion. The crops are sorted and picked up by left and right workers sitting at 20, and these crops are separated into containers placed on the left and right container stands 24 of the workers according to their size and shape. It is stored. In this case, the left and right seats 20 are horizontally rotated in the front-rear direction around the support pillars 14 via the leg rods 15 depending on the work situation, and are shifted in position back and forth so as not to oppose each other. Further, according to the positions of the left and right seats 20, the left and right container tables 24 of the seats 20 are horizontally rotated in the front-rear direction about the vertical axis 21 via the support pieces 22 so that the left and right
Left and right container tables 24 are installed on both sides of 20. And
Poorly harvested products C and other miscellaneous products other than the harvested products C that are not picked up by the operators of the left and right seats 20 are carried out from the carrying-out end of the endless revolving body 37.

[0033]

According to the present invention, a conveyor for transferring harvested material while sifting the soil is provided in the main body of the harvester, and a hanging rod of a support frame provided on the conveyor is provided so as to be vertically adjustable. The gauge wheel is widened and inclined forward to the left and right arms of the hanging rod , and the rear end is close to both sides of the ridge.
Since rotatably and Jikuka in that state, the gauge wheel of the right and left
The rear end of Waso respectively are rotated progression is regulated by both sides of the ridge, the left and right gauge wheels along the ridges can be reliably follow progression, left even when the ridge is curved gauge wheels of Ru can be reliably prevented that ride on the ridge from the front end portion flared toward the front. Therefore,
HoOkoshi sufficiently able to perform the digging caused operations of crop by bodies, sorting work of harvesting and harvest while self can be easily performed, to provide a harvester with superior work of be able to.

Further, since the left and right of the gauge wheels and Jikuka freely adjusting the distance in the lateral direction to the left and right arms, it is possible to adjust spacing to suit the spacing of the gauge wheels of the left and right ridge width,
Depending on the width of the ridge in the field, the left and right gauge wheels are moved along the ridge
It is possible to reliably prevent the harvesting operation to be performed while following up from becoming difficult.

[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 plan view of the same.

FIG. 3 is a front view showing the same harvesting operation state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Harvester main body 5 Traveling device 27 Conveyor 41 Excavated body 42 Support frame 50 Suspension rod 51 Arm 54 Gauge wheel A ridge B ridge groove C Harvest

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A01D 13/00-33/14

Claims (1)

(57) [Claims] [1 claim: a harvester body with a driving device, a front end that protrudes to be inclined to the lower front of the harvester body is provided on the harvester body and loading unit has been carried into the carry-in section
A conveyor for conveying the crop to unloading of the way after One One attrition soil, cause digging crops from ridge provided in front of the loading portion of the conveyor carrying the crop to the carrying portion of the conveyor crops and HoOkoshi body, the rotatably mounted to the front left and right of the HoOkoshi body travels furrows of the ridge the drilling Okoshitai to
Comprising: a left and right of the gauge wheels, the to regulate the digging caused depth of
And, on the conveyor, the arm front left and right on the drilling Okoshitai
Support positioned adjustably supporting the suspended rod vertically with
Provided frame, said gauge wheel left and right side portions of the rear end portion flared inclined toward the front <br/> side on the left and right arms of Tsuji杆each said ridge
Gap adjusting itself rotatably and in the lateral direction in a state close to the
A harvester characterized by being mounted on a shaft.