JP4966700B2 - Foliage processing machine - Google Patents

Description

  The present invention relates to a foliage processing machine that removes foliage of crops before harvesting the tubers of crops such as potatoes grown in a field.

Conventionally, there is a foliage processing machine used to remove potato foliage before harvesting potato tubers (hereinafter simply referred to as potatoes) cultivated with straw. And a pair of left and right pulling rolls arranged behind the foliage shredding device, and is configured to be attachable to the rear part of a traveling body such as a tractor (see Patent Document 1). ).
In order to remove the foliage with this foliage processor, the foliage is shredded with the shredder device while moving the foliage processor along the longitudinal direction of the cocoon, leaving a part of the root side, and the remaining root side The left and right drawing rolls are rotated at high speed so as to move upward on the opposite side of the drawing rolls.

Then, the foliage is pulled out with the potatoes left in the reed.
In the above-mentioned foliage processing machine, when the root side of the foliage is pulled out by a pulling roll, the potato may be slightly lifted and the potato may be exposed from the cocoon, and when the potato is exposed from the cocoon, the potato is exposed to sunlight. However, if the potato continues to be exposed to sunlight, the portion turns green, which not only has a problem in appearance quality, but also reduces the commercial value, such as increasing the taste on the discolored surface portion.
Therefore, in the conventional foliage processing machine, by providing a drawing roll so as to contact the reed, when pulling out the foliage, the reed soil is scraped by the left and right retraction rolls and pulled out with the foliage pulled up It is configured to be blown up, and the blown up soil and foliage are guided and dropped by the guide chute (guide means) onto the upper surface of the back of the pulling roll, thereby covering the potato with the soil and foliage and greening the potato. I try to prevent it.

In addition, a gauge ring that rolls on the fence and adjusts the height of the drawing roll is provided behind the drawing roll, and the soil and foliage blown up by the drawing roll are dropped to the front side of the gauge ring. The potato is surely covered by pressing the soil and stems and leaves dropped on the ridge with a gauge ring.
JP 2004-194594 A

In the conventional foliage treatment machine, the earthing outlet of the guide chute is positioned near the ridge in order to stabilize the falling position of the soil and foliage sent out from the guide chute, but then the guide chute becomes large. There is a problem that the weight is large.
In addition, if the guide chute is transported away from the reed and the guide chute is made smaller, the soil and foliage may be scattered on the entire surface of the reed, which may result in incomplete potato coating. Is supported on the side of the device frame that supports the drawing roll, and when adjusting the vertical position of the gauge ring, the guide chute and the gauge ring move separately, so that the soil and foliage sent out from the guide chute are surely There arises a problem that it may be difficult to drop the gauge wheel to the front side.

  Therefore, in view of the above-mentioned problems, the present invention reliably drops the soil blown up by the drawing roll intensively on the center side in the width direction of the cocoon where the crop tubers are easily exposed and on the front side of the gauge ring. An object of the present invention is to provide a foliage processing machine that can reduce the weight of guide means that guides the soil blown up by a drawing roll onto the ridge.

  The technical means taken by the present invention in order to solve the technical problem is to sandwich the stems and leaves of the crop cultivated with straw between the pair of left and right drawing rolls, and the left and right drawing rolls on the opposite side of the drawing rolls. A foliage drawing device is provided that pulls out the foliage by rotating it so that it moves upward, and this foliage drawing device has a gauge wheel that rolls on the rear side of the left and right draw rolls and adjusts the height of the draw roll The left and right drawing rolls are provided in contact with the ridge so that the soil is blown up rearward and upward by the drawing roll, and the upper surface of the heel on the rear side of the drawing roll and the front side of the gauge ring is received by the soil blown up by the drawing roll. And a guide chute that guides the soil blown up by the pulling roll to the earthing guide, and supports the earthing guide on the gauge wheel side. And, a guide chute, characterized in that supported on the device frame side which supports the pulling roll.

Further, it is preferable that the guide chute is arranged on the upper side of the pulling roll and the earthing guide is arranged on the upper side of the gauge wheel so as to face the earthing outlet of the guide chute.
Further, the gauge ring is formed in a front drum shape along the ridge, and the earth guide is formed of a plate material, and obliquely upward from the central wall portion and the left and right side edges of the central wall portion outward in the left-right direction. The left and right wall portions are formed in a shape along the gauge ring, and the earth guide is preferably in a front-lowering shape and disposed on the upper side of the gauge ring.
Also, a guide unit that drops the soil moving to the earthing guide by reducing the speed of the soil that is blown up by the drawing roll and moves to the earthing outlet along the inner wall side of the upper wall of the guide chute on the earth feeding outlet side of the upper wall of the guide chute It is good to be provided.

  According to the present invention, the guide means for guiding the soil blown up by the drawing roll to the ridge is received by the soil guide that receives the soil blown up by the drawing roll and guides it to the upper surface of the ridge on the rear side of the drawing roll and the front side of the gauge ring. By configuring the guide and the guide chute that guides the soil blown up by the pulling roll to the earth gathering guide, it is not necessary to position the earthing outlet of the guide chute near the ridge, so the guide chute can be miniaturized, It is possible to reduce the weight of the guide means that guides the soil blown up by the drawing roll onto the fence, and the guide chute is supported on the device frame side that supports the drawing roll, and the earthing guide is on the gauge wheel side Therefore, even if the vertical position of the pulling roll is adjusted with the gauge ring, The relative position does not change, and the soil blown up by the pulling roll by the earthing guide can be surely dropped onto the cage on the front side of the gauge ring, and even if the guide chute is downsized, it is blown up by the drawing roll by the earthing guide. The soil can be intensively dropped to the central side in the width direction of the cocoon where the potato is easily exposed, and the potato exposed from the cocoon can be reliably covered to prevent greening.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In FIG. 2 to FIG. 5, reference numeral 1 denotes a foliage processing machine used to remove the foliage S before harvesting (digging) tubers T (potatoes) of a crop P such as potato. The processor 1 is attached to the rear part of a traveling body such as a tractor, and removes the foliage S while moving the farm field along the ridge.
This foliage processing machine 1 is mainly composed of a front foliage shredding device 2 and a rear foliage drawing device 3, and the foliage drawing device 3 draws the foliage S while leaving the potato T in the ridge R. The foliage shredding device 2 is a device that shreds (crushes) an excess portion of the foliage S before the foliage S is pulled out.

The foliage processing machine 1 in this embodiment is provided with a pair of left and right foliage drawing devices 3 corresponding to 1 畝 behind the chopping device 2 corresponding to 2 畝 while moving along the longitudinal direction of the ridge R. It is configured to process two pieces simultaneously (in one step).
In addition, what processed only 1 square or 3 squares or more may be used.
The foliage shredding device 2 includes a device frame 4 that is detachably mounted on the rear part of the tractor via a three-point link mechanism, and a shredder that is supported by the device frame 4 and shreds the foliage S. It has a part 5 and a gauge ring 6.

At the front part of the device frame 4, there is an upper top link attachment part 7 attached to the rear end side of the top link of the three-point link mechanism, and lower left and right parts attached to the rear end side of the left and right lower links of the three-point link mechanism. And a lower link mounting portion 8.
The gauge wheels 6 are provided on both the left and right sides of the rear end side of the device frame 4 and roll in the groove between the flanges R to support the rear portion of the device frame 4 and hold the shredded portion 5 at a predetermined height.
The gauge ring 6 is attached to the apparatus frame 4 so that the vertical position can be adjusted. The height of the shredded portion 5 can be adjusted by changing the vertical position of the gauge ring 6 with respect to the apparatus frame 4.

As shown in FIGS. 2 and 6, the chopping portion 5 is composed of a pair of front and rear rotating shafts 9 having left and right axial centers, and a chopping blade 10 attached to each of the front and rear rotating shafts 9. Yes.
The chopping blade 10 provided on each of the front and rear rotating shafts 9 is constituted by a flail blade or the like attached to a bracket fixed to the rotating shaft 9 so as to be rotatable about the left and right axes.
The front rotation shaft 9 is arranged higher than the rear rotation shaft 9, and the cutting leaves 10 provided on the front rotation shaft 9 allow the foliage S on the upper side of the cocoon R to partially cover the root side. The chopping blade 10 is chopped with respect to the front and rear rotary shafts 9 so that the leaves S on both the left and right sides of the heel R are shredded by the chopping blades 10 provided on the rear rotary shaft 9. Has been placed.

The upper and left and right sides of the shredded portion 5 are covered with cover members 11 provided on the apparatus frame 4.
An input shaft 12 linked to the PTO shaft of the tractor via a universal joint is provided at the center in the left-right direction on the front end side of the device frame 4, and the power from the PTO shaft transmitted to the input shaft 12 is Forward and backward rotation through a power transmission mechanism in the gear case 13, a transmission shaft in the cylindrical body 14 projecting leftward from the gear case 13, a power transmission mechanism in the transmission case 15 connected to the left end side of the cylindrical body 14, etc. The front and rear rotating shafts 9 are rotationally driven in the direction of arrow A in FIG. 2 by the transmitted power, and the shredded leaves S are configured to fly forward.

The power transmitted to the input shaft 12 is branched to the left and right by a power transmission device 16 provided at the front of the device frame 4, and the power branched to the left and right is rear left and right via the transmission shaft 17. To each of the foliage drawing devices 3.
The left and right foliage drawing devices 3 are disposed in the vicinity of the front side of the left and right drawing rolls 18 and a pair of left and right drawing rolls 18 that pinch and draw the root-side foliage S shredded by the foliage shredding device 2. The scraping means 19 that scrapes (scraps) the leaves and leaves S that have been shredded toward the left and right direction (width direction) center side of the ridge R, and the rear of the drawing roll 18, and the height of the drawing roll 18 A gauge wheel 20 for adjusting the height, guide means 21 for guiding the soil blown up by the left and right drawing rolls 18 together with the foliage S from which the soil has been drawn to the rear of the drawing roll 18 and the front side of the gauge ring 20; A drawing roll 18, a scraping means 19, a gauge wheel 20, and a device frame 22 that supports the guide means 21 are provided.

The scraping means 19 and the drawing roll 18 are driven by power transmitted from the input shaft 12 via the transmission shaft 17.
The device frame 22 of each of the left and right foliage drawing devices 3 is supported on the rear portion of the device frame 4 of the foliage shredding device 2 via an elevating link mechanism 23 composed of a pair of upper and lower links.
The scraping means 19 makes it easy for the foliage S to enter between the left and right drawing rolls 18 by scraping the foliage S remaining without being shredded to the center side in the left-right direction of the ridge R. A pair of scraping belts 24 and a drive mechanism (not shown) for driving the scraping belts 24 are provided.

The left and right scraping belts 24 are made of an elastic body such as rubber, and are provided with elastically deformable protrusions (tines) on the outer periphery of the endless belt body at intervals in the circumferential direction. In the opposite side, the leaves and leaves S that are left without being shredded are raked by the tine toward the center in the left-right direction by moving in a circumferential direction so as to move from the lower side to the upper side. Yes.
The gauge wheel 20 is disposed between the rear portions of a pair of left and right support arms 25 whose front end side is supported by the device frame 22 so as to be rotatable around the left and right axes, and can be rotated around the left and right axes by the left and right support arms 25. The gauge wheel 20 can be moved up and down by swinging the support arm 25 up and down with the pivot 26 on the front end side as a fulcrum.

  One end side of a connecting member 27 is pivotally connected to a middle portion in the length direction of each of the left and right support arms 25, and the other end side of each of the left and right connecting members 27 is pivotally connected to a lever member 28. The lower end side of the support shaft 29 is connected to the support shaft 29 in the left-right direction and is supported by the device frame 22 so as to be rotatable about the shaft center of the support shaft 29. The telescopic height adjustment mechanism 30 interposed between the front end side and the apparatus frame 22 can be swung around the support shaft 29 on the lower end side, and the lever member 28 is swung to operate the gauge. The vertical position of the wheel 20 with respect to the device frame 22 can be adjusted.

In the present embodiment, as shown in FIG. 7, the gauge wheel 20 has a rubber or cloth flat at the center in the left-right direction of the cylindrical member 32 made of a rubber plate material spanned between the left and right ring bodies 31. By squeezing with a belt, it is formed in a frontal drum shape so as to substantially follow the shape of the ridge R, and rolls on the ridge R behind the pulling roll 18 to support the rear portion of the device frame 22 and the foliage. Hold the heel R after pulling out S from above.
As shown in FIGS. 8, 9, and 12, the left and right drawing rolls 18 are formed in an oval shape when viewed from the side, and have a large number of protrusions 33 on the surface.

In the present embodiment, each of the left and right drawing rolls 18 includes a roll main body 34 formed from a rubber-like elastic body into a cylindrical shape (hollow shape) having a front and rear opening, and a core body 35 to which the roll main body 34 is attached, An elastic cover 36 made of a rubber-like elastic body that is covered with the roll main body 34 and is fitted and fixed to the roll main body 34 in an interference fit state, and a rubber-like elastic body provided on the surface of the elastic cover 36. Mainly composed of the plurality of protrusions 33.
The core body 35 includes a bottomed cylindrical front and rear mounting portions 37F and 37R, a cylindrical portion 38 connecting the front and rear mounting portions 37F and 37R, and a shaft fitting connected to the rear end side of the cylindrical portion 38. The main part is composed of a part 39 and is inserted into the roll body 34.

The roll main body 34 is attached to the core body 35 by tightening and fixing the front and rear end portions thereof to the front and rear mounting portions 37F and 37R of the core body 35 with a metal band or the like, and at the front and rear end portions of the roll main body 34. The opening is closed by mounting portions 37F and 37R before and after the core body 35.
An air circulation hole 40 to which a valve is attached is formed in the mounting portion 37R on the rear side of the core body 35, and the roll body 34 is filled with compressed air from the air circulation hole 40 via the valve. By inflating 34, the roll body 34 exhibits an oval shape.

The elastic cover 36 is formed in a cylindrical shape having an opening in the front and rear direction. The elastic body 36 is placed on the roll body 34 in a state where air is extracted from the roll body 34, and the roll body is covered with the elastic cover 36. When the roll body 34 is inflated by filling the inside 34 with the air, the elastic cover 36 expands, and the elastic cover 36 is attached and fixed in close contact with the roll body 34 by the force with which the elastic cover 36 contracts. ing.
The front end side of the elastic cover 36 is fastened and fixed to the front attachment portion 37 of the core body 35 together with the front end side of the roll body 34.

In the present embodiment, the protrusion 33 is provided on the surface of the elastic cover 36 by attaching a rubber plate 41 integrally formed with the protrusion 33 to the elastic cover 36 (the protrusion 33 is formed on the elastic cover 36. It may be integrally formed directly or may be integrally formed on the surface of the roll body 34).
Further, the protrusion 33 is formed so that the base end side in the protruding direction from the elastic cover 36 (roll body 34) is a frustoconical shape and the tip side is formed in a columnar shape, and the front-rear direction of the middle part of the roll body 34 in the front-rear direction (axial direction) It is provided over the entire circumference of the roll body 34 in a predetermined range (at least a portion where the foliage is sandwiched).

Further, the protrusions 33 are provided with an interval such that the cylindrical portion of the protrusion 33 of one drawing roll 18 is inserted between the cylindrical portions of the protrusion 33 of the other drawing roll 18.
A rotation support shaft 42 is inserted into the cylindrical portion 38 of the core body 35 from the front side, and the core body 35 is attached and fixed to the rotation support shaft 42, and the rear end side of the rotation support shaft 42 is fitted into the shaft 35. The pulling roll 18 is connected to the joint portion 39 by spline fitting (or key coupling or the like), and rotates integrally with the rotation support shaft 42.
The rotation support shaft 42 is supported at its front end side by a shaft support 43 provided on the apparatus frame 22 so as to be rotatable about its axis, and is rotationally driven by power transmitted from the input shaft 12 via the transmission shaft 17. Is done.

The left and right drawing rolls 18 are arranged in close contact with each other in the left-right direction, and rotate at a high speed so as to move upward (move from the lower side to the upper side) on the opposite side (close side) of the drawing roll 18. Driven (rotated in the direction of arrow C in FIG. 12).
In the foliage drawing device 3, the scraping means 19 and the left and right drawing rolls 18 are driven to advance the foliage treatment machine 1 along the longitudinal direction of the ridges R, so that The foliage S that remains without being cut off is scraped by the scraping means 19 and is caused, and the swollen foliage S enters relative to the joints of the left and right drawing rolls 18 so that the foliage S is left and right. It is sandwiched between the pulling rolls 18 and pulled upward, whereby the foliage S is pulled out while leaving the potato T on the heel R.

Further, the left and right drawing rolls 18 are arranged in contact with the ridge R in a forwardly rising inclination (an inclination that moves upward as the rotation axis moves forward), and the soil of the ridge R is the left and right extraction roll 18. It is configured to be blown up rearward together with the foliage S that has been scraped and pulled out, and the blown up soil and foliage S are guided by the guide means 21 behind the draw roll 18 and on the gauge wheel 20. It is guided to the center side of the front ridge R, and is configured so as to prevent the exposure of the potato T by covering the potato T after the foliage S is pulled out.
In the pulling roll 18 having the above-described configuration, a large number of protrusions 33 are provided on the surface side of the pulling roll 18 so that the stems are not excessively crushed when the foliage S is sandwiched between the pulling rolls 18. Since it can be pinched, the foliage S is not shredded in the middle.

In addition, since the foliage S can be firmly sandwiched by the numerous protrusions 33, slippage hardly occurs even when the drawing roll 18 gets wet with juice or the like from the crushed stem, and the foliage S can be reliably pulled out.
The projection 33 can prevent the extraction error of the foliage S and can improve the extraction accuracy.
Further, the juice coming out of the crushed stalk passes downward between the protrusions 33.
In addition, the protrusion 33 is not limited to the thing of the example of illustration, When pinching the stem S between the drawing rolls 18, it does not crush the stem excessively, and the juice generated when the stem is crushed falls out downward. If it satisfies, the projection 33 having a certain length in the direction along the surface of the drawing roll 18 such as a plate shape may be used.

Further, by providing the protrusion 33 on the elastic cover 36 that covers the roll body 34, when the protrusion 33 is damaged or worn, it is only necessary to replace the elastic cover 36 without replacing the entire drawing roll 18. It is.
Further, the elastic cover 36 is covered with the roll body 34 in a state where the air in the roll body 34 is evacuated, and the elastic cover 36 is expanded by filling the roll body 34 with air and extending the elastic cover 36 in this state. Since the elastic cover 36 is easily attached and fixed to the main body 34, the elastic cover 36 can be easily removed by removing air from the roll main body 34, and the projection 33 is damaged or worn. The elastic cover 36 can be easily replaced.

As shown in FIG. 1, the guide means 21 receives the soil blown up by the drawing roll 18 and guides it to the upper surface of the ridge R on the rear side of the drawing roll 18 and on the front side of the gauge wheel 20, and the drawing roll And a guide chute 45 that guides the soil blown up at 18 to the earth guide 44.
The earthing guide 44 is attached to an attachment member 46 that is disposed on the upper side of the gauge wheel 20 and is attached to the support arm 25 that supports the gauge wheel 20. Therefore, the earthing guide 44 has a relative position to the gauge wheel 20. It is provided so as to move integrally with the gauge wheel 20 without change.

Further, the guide chute 45 is disposed above the drawing roll 18 and attached to the apparatus frame 22. Therefore, the guide chute 45 is provided so that the relative position with respect to the drawing roll 18 does not change.
The attachment member 46 to which the earth guide 44 is attached includes left and right side flanges 47 disposed vertically on the left and right sides on the upper side of the gauge wheel 20 (in the embodiment, a rearwardly inclined shape), and left and right above the gauge wheel 20. The rear end of the support arm 25 that is arranged in the direction and that connects the upper ends of the left and right side flanges 47 and that has the lower ends of the left and right side flanges 47 on the same side in the left-right direction. Bolts are fixed to a bracket 49 fixed to the side.

As shown in FIGS. 1, 7, 10, and 11, the earthing guide 44 is formed of a plate material so as to have a lateral width that is substantially the same as the lateral width of the gauge wheel 20, and includes a central wall portion 50 and the central wall portion 50. Are formed in a shape along the gauge wheel 20 from the left and right wall portions 51 extending obliquely upward from the left and right side edges to the upper surface side of the gauge wheel 20.
In addition, the earth guide 44 is arranged in a front-lowering manner, and is inclined so that the central wall 50 moves downward as it goes forward. A mounting portion 52 formed in the shape of an open hook is provided below, and the mounting portion 52 is hooked on the mounting flange portion 48 of the mounting member 46, and the mounting flange portion 48 is composed of bolts, nuts, and the like. The earth guide 44 is attached to the attachment member 46 in a downwardly inclined manner by being attached and fixed using a fixture.

Further, the lateral width of the central wall portion 50 of the earth guide 44 is formed so as to gradually narrow toward the lower side, and the lower end side of the central wall portion 50 is the lateral direction on the upper side of the gauge wheel 20. Located on the front end side of the center.
Therefore, the soil gathering guide 44 receives the soil and the foliage S blown up by the pulling roll and guided by the guide chute 45 in a relatively wide range, and the received soil and the foliage S slide down downward. Collected at the center in the left-right direction, the potato T falls intensively to the center in the left-right direction of the heel R where it is easy to expose.

The guide chute 45 is formed to have a lateral width wider than the lateral width of the lateral pulling roll 18 and a lateral width that is substantially the same as that of the earth guide 44 and the gauge wheel 20, and is formed of a lateral wall 53, a front wall 54, and an upper wall 55. The upper side of the rear opening is a soil feed outlet 56 that feeds the soil and foliage S blown up by the drawing roll 18 to the earth guide 44.
The front wall 54 is inclined so as to move rearward as it goes upward, and a corner portion 57 between the upper end of the front wall 54 and the front end of the upper wall 55 is formed in an arc shape in a side view that protrudes toward the front upper side. The front wall 54 and the upper wall front portion 55a extend from the corner portion 57 in the tangential direction of the arc of the corner portion 57.

A notch opening 58 is formed on the lower end side of the front wall 54, and this notch opening 58 determines whether or not the drawing roll 18 is moving normally (whether the foliage S is not jammed in the drawing roll 18) or not. It is an operation inspection window for confirming (monitoring) from the side (tractor side).
The upper wall 55 is inclined so that the front side portion 55a and the rear side portion 55b move downward as it goes rearward, and the front side portion 55a has a gentle inclination with respect to the vertical direction. It is bent at the midway part in the front-rear direction so that 55b has a steep slope.

The front side portion 55a of the upper wall 55 may be horizontal.
Further, the rear side portion 55 b of the upper wall 55 is directed toward the upper side of the earthing guide 44 in order to guide the soil and foliage S delivered from the earthing outlet 56 to a wide portion on the upper side of the earthing guide 44. Yes.
In the guide chute 45 having the above-described configuration, the soil and the foliage S blown up by the drawing roll 18 move rearward along the inner surfaces of the front wall 54 and the corner portion 57, and the upper wall front portion 55a. , Moved from the upper wall front side portion 55a to the upper wall rear side portion 55b, sent out from the earth feed outlet 56, and dropped onto the earth guide 44.

At this time, since the upper wall rear side portion 55b intersects the moving direction of the soil and foliage S moving along the corner portion 57 and the upper wall front side portion 55a, the soil and foliage S are formed. In the process of moving from the upper wall front side portion 55a to the upper wall rear side portion 55b, the momentum in the moving direction is reduced, and the vehicle stalls at a speed suitable for sending out to the earthing guide 44 without splashing elsewhere. It is surely placed on the earth guide 44.
That is, when the blown-up soil and the foliage S are dropped on the soil guide 44 by natural fall, the soil and the foliage S tend to be scattered over a wide range, and when the soil and the leaf S 44 are vigorously hit, the hit soil and the like are scattered. However, in the present embodiment, the rear portion 55b of the upper wall 55 of the guide chute 45 is blown up by the pulling roll 18 and moves to the soil outlet 56 along the inner surface side of the upper wall 55 of the guide chute 45. Therefore, the soil and the foliage S sent out from the guide chute 45 can be reliably placed on the earthing guide 44.

  In the foliage processing machine 1, when the soil and foliage S blown up by the drawing roll 18 are dropped to the front side of the gauge ring 20, the height of the gauge ring 20 is increased and the height of the drawing roll 18 is also increased. Therefore, before starting the work, the height of the gauge wheel 20 is set in consideration of the amount of soil and foliage S dropped to the front side of the gauge wheel 20, and a slight trial run is performed for fine adjustment.

It is side surface partial sectional drawing which shows the arrangement | positioning relationship of a drawing roll, a guide chute | shoot, and an earth guide. It is a side view of a foliage processing machine. It is a top view of a foliage processing machine. It is a front view of a foliage processing machine. It is a rear view of a foliage processing machine. It is a top view of a shredded part. It is a rear view which shows the arrangement | positioning relationship of a gauge ring, a dirt approach guide, and a guide chute. It is a side view of a drawing roll. It is side surface sectional drawing of a drawing roll. It is a front view of a soil gathering guide. (A) is a side view of the earth guide, (b) is a cross section taken along line BB in FIG. It is a front view which shows the stem and leaf drawing-out state of a drawing roll.

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 Pulling-out apparatus 18 Pull-out roll 20 Gauge wheel 22 Apparatus frame 44 Digging guide 45 Guide chute 50 Center wall part 51 Right-and-left wall part 55 Upper wall 55b Upper wall rear part (guide part)
56 Earth Transport Exit P Potato (Crop)
R Ｓ S foliage

Claims (4)

  The stems and leaves (S) of the crop (P) cultivated with the straw (R) are sandwiched between a pair of left and right drawing rolls (18), and the left and right drawing rolls (18) are placed on the opposite side of the drawing roll (18). A foliage extraction device (3) for extracting the foliage (S) by rotating it so as to move is provided, and this foliage extraction device (3) rolls on the left (R) extraction roll (18) on the ridge (R) on the rear side. And a gauge ring (20) for adjusting the height of the drawing roll (18), and the left and right drawing rolls (18) are soaked by the drawing roll (18) so as to blow up the soil rearward and upward. An earthing guide (44) provided in contact with the earth and receiving the soil blown up by the drawing roll (18) and guiding it to the upper surface of the ridge (R) on the rear side of the drawing roll (18) and on the front side of the gauge wheel (20). , Drawing roll ( 8) is provided with a guide chute (45) for guiding the soil blown up to the earth gathering guide (44), the earth gathering guide (44) is supported on the gauge wheel (20) side, and the guide chute (45) is pulled out by a roll ( A foliage treatment machine characterized by being supported on the side of the device frame (22) that supports 18).   The guide chute (45) is arranged on the upper side of the drawing roll (18), and the earthing guide (44) is arranged on the upper side of the gauge ring (20) so as to face the earthing outlet (56) of the guide chute (45). The foliage processing machine according to claim 1, wherein   The gauge ring (20) is formed in a frontal drum shape along the ridge (R), and the earth guide (44) is formed of a plate material, and the central wall portion (50) and the left and right sides of the central wall portion (50) are formed. The left and right wall portions (51) extending obliquely upward from the side edges in the left-right direction are formed in a shape along the gauge ring (20), and the earthing guide (44) is in a front-lowering shape. The foliage treatment machine according to claim 1 or 2, wherein the foliage treatment machine is arranged on an upper side of the gauge ring (20).   The upper side (55) of the guide chute (45) is blown up by the drawing roll (18) to the side of the earth delivery outlet (56), and the earth delivery outlet ( 56. The foliage processing machine according to claim 1, 2 or 3, further comprising a guide portion (55b) for dropping the speed of the soil moving to 56) and dropping it to the earth guide (44).

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