JP3143318B2 - Sorting unit structure of threshing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sorting unit structure of a threshing apparatus provided with a chaff sheave for roughly sorting a treated material leaking from a receiving net by receiving a wind from Karino located in front thereof.

[0002]

2. Description of the Related Art Conventionally, the chaff sheave in the structure of the sorting unit of the threshing apparatus as described above has been constituted by a plurality of chaff flip plates arranged so that the upper end position and the lower end position are respectively at the same height. JP-A-4-360617
Reference).

[0003]

However, according to the above prior art, at the front side of the chaff sheave, which is the Karamin side, the sorting wind from the Karamin can be blown toward the chaflip plate. The flip plate can easily receive the wind force and the amount of sorting air that blows up toward the upper processing object increases, so that it is possible to obtain effective blow-up conveyance and avoid leakage of broken straw and straw chips. However, on the rear side of the chaff sheave away from Karamin, the sorting wind from Karamin follows the direction of the arrangement of multiple chaflip plates arranged at the same height. As a result, it becomes difficult to receive the wind force from the chaflip plate and blow up toward the upper processing object. Sorting air volume becomes small, such as straw and straw dust off it impossible to obtain an effective blow conveyed is such that the lower leakage, had become impossible crude selection of good treated by chaff sieve. That is, there is room for improvement in improving the sorting accuracy of the processed material in the chaff sheave.

[0004] It is an object of the present invention to improve the sorting accuracy of the processed material in the chaff sheave by facilitating the reception of the wind force by the chaff flip plate even on the rear side of the chaff sheave away from Karamin.

[0005]

In order to achieve the above object, according to the first invention, each of the chaff sheaves for roughly sorting out the treated material leaked from the receiving net by receiving the wind force from Karino, which is disposed in front thereof, Are arranged in such a manner that the upper end position is the same height and the lower end position becomes lower toward the rear side.

According to the second aspect of the present invention, a plurality of chaflip plates are used to roughly sort the chaff sheaves that receive the wind from Karino Mining, which is disposed in front of the processed material leaked from the receiving net, and roughly sort the chaff sheaves.
Of the front flip plate, the rear
A concave portion that allows passage of wind to the side chaflip plate,
Suppresses the passage of wind to the rear side flip plate and moves it upward.
A convex portion to be turned was formed.

According to the third aspect of the invention, the chaff sheaves for roughly sorting the processed material leaked from the receiving net by receiving the wind from Karino are arranged in such a manner that their upper ends are lined up at a predetermined height. A first chafflip plate group consisting of a plurality of connected chafflip plates, a rising position where the upper end is arranged at the same height as the upper end of the first chafflip plate group, and the upper end is higher than the upper end of the first chafflip plate group. A second chafflip plate group consisting of a plurality of chafflip plates integrally and positionably connected to a lowering position which is also lowered downward, thereby forming a chafflip plate of the first chafflip plate group and the second chaff plate. The flip-chip group was configured to be mixed with the chaflip plates.

[0008]

According to the first aspect of the present invention, even in a state in which the sorting wind from Karino blows through the lower part of the Chaflip along the arrangement direction of a plurality of Chaflip, like the rear side of the chaff sheave away from Karin. Since the lower end of the chaflip plates or groups of chaflip plates arranged in such a way that the lower end position is lower at the rear side enters the ventilation path, the chaflip is also located at the rear side of the chaff sheave away from Karamin. In addition to making it easier to receive the wind force by the plate, the amount of sorting air that blows toward the upper processing material on the rear side of the chaff sheave increases, and it is possible to obtain an effective blow-up conveyance on the rear side of the chaff sheave. In this way, leakage of broken straw and straw debris on the rear side of the chaff sheave can be avoided.

According to the second aspect of the present invention, on the front side of the chaff flip plate, a part of the sorting wind from the kamino sprayed toward the front side of the chaff sheave, which is the kamino side, is projected onto the convex portion of the chaflip plate. Along with the blow-up toward the processed material at the end, a part of the sorting wind blows from the concave portion toward the rear-side chaflip plate. A part of the sorting wind blown from the plate hits the convex part of the chaflip plate and blows up toward the processed material above,
Since a part of the sorting wind blows from the recess toward the rear-side chaflip plate, the sorting wind blown up by the rear-side chaflip plate is always secured.
In addition, a sorting wind that blows through the concave portion of the chaflip plate,
The sorting wind that blows through the lower part of the chafflip plate along the arrangement direction of the chaflip plate blows in a parallel state, and a part of the sorting wind that blows through the recess of the chaflip plate rises every time it blows through the recess of the chaflip plate. As the wind blows toward the bottom, the sorting wind that blows below the chafflip plate is strongly drawn into the chafflip plate side, so that the chafflip plate can easily receive wind power even on the rear side of the chaff sheave away from Karamin. Become. In other words, the sorting air volume that blows up toward the upper processed material on the rear side of the chaff sheave is further increased, so that more effective blow-up conveyance can be obtained, and the cutting straw and the straw debris on the rear side of the chaff sheave. Such leakage is more preferably avoided.

Further, when the second invention is combined with the first invention, the lower end of the chaflip plate enters the ventilation passage of the sorting wind blown below the chaflip plate according to the first invention, (2) By the action of drawing the sorting wind that blows through the lower portion of the chaflip plate to the chaflip plate side according to the invention, the sorting wind that blows below the chaflip plate at the rear side of the chaff sheave can be more efficiently drawn into the chaflip plate side. It is possible to blow up the drawn-in sorting wind together with the secured sorting wind by the rear-side chaff flip plate toward the upper processing object, thereby blowing up toward the upper processing object at the rear side of the chaff sheave. The sorting air volume will be much higher, and it will be possible to obtain more effective blow-up conveyance , So that the leakage under such cutting straw and straw dust at the rear side of the chaff sieve is more preferably avoided.

According to the third aspect of the present invention, the lower end of the second flip-flop group of the second flip-flop group is adjusted to the lower position by adjusting the position of the second flip-flop group to the lower position. Became lower than the lower end, the gap between the lower ends of the lowermost chaflip plates is the lower end of the chaflip plates in a state where the first and second chaflip plate groups are aligned. It becomes easier to receive the wind power in the entire chaff sheave, and by adjusting the position of the second chaff flip plate group to the lowered position, the upper end of the chaff flip plate of the second chaff flip plate group becomes larger. As it comes down below the upper end of the chaflip board of the first chaflip board group,
Since irregularities can be formed on the upper surface of the chaff sheave, it is possible to increase the loosening action on grains that have become hard and difficult to loosen. In other words, by adjusting the position of the second chaff flip plate group to the lowering position, the amount of sorting air that blows up toward the upper processing material in the entire chaff sheave increases, and an effective blow-up conveyance is obtained also on the rear side of the chaff sheave. As well as being able to promote the drying of kernels that have become difficult to leak due to wetting,
The loosening action increased by the irregularities formed on the upper surface of the chaff sheave makes it possible to promote the singulation of grains that have become difficult to dislodge, such as grains and hard-threat grains. Leakage of straw and straw debris can be avoided, and the retention and the like of wet grains on the chaff sieve can be suppressed by drying and singulation of the wet grains.

In addition, around the fulcrum set at the front end of the chaff sheave, the second chafflip plate group is set at a rising position where it is aligned with the first chafflip plate group, and at a descent position where it is lowered downward from the first chafflip plate group. When the chaff sheave is configured to swing up and down, the lower end of the chaff flip plate of the second chaff flip plate group is adjusted by adjusting the position of the second chaff flip plate group to the lowered position, so that the chaff flip plate of the first chaff flip plate group is adjusted. The gap between the lower ends of the lowermost chaflip plates located lower than the lower end of the chafflip plate is increased, and the lower end position of the chaflip plate of the second chafflip plate group located on the rear side is lower. Since the lower end of the chaflip plate of the second chafflip plate group enters the ventilation path of the sorting wind that blows below the chaflip plate, the wind in the entire chaff sheave In the rear part of the chaff sheave away from Karamin, it is easier to receive the wind force by the chaff flip plate, and the sorting wind that blows below the chaff flip plate is efficiently drawn into the chaff flip plate side. And the amount of sorting air blown toward the upper processing object is further increased by the rear chaff flip plate, so that more effective blow-up conveyance can be obtained. Leakage of broken straw, straw waste, and the like is more preferably avoided.

Further, when the third invention is combined with the second invention, the sorting wind that blows up in the rear chaflip plate can always be secured, and the lower part of the chaflip plate according to the second invention can be maintained. The effect of the sorting wind that blows through to the chaflip plate side and the third
With the effect that the wind force can be easily received in the entire chaff sheave according to the present invention, it becomes possible to more effectively draw the sorted wind that blows below the chaff flip plate to the chaff flip plate side, and in the case of only the third invention. As compared with the above, the amount of the sorting air blown toward the upper processing object is increased.

[0014]

Thus, according to the first aspect of the present invention, it is possible to carry out rough sorting of a good processed product in which leakage of cut straw and straw chips on the rear side of the chaff sheave can be avoided. It has become possible to improve the sorting accuracy of objects.

[0015] According to the second aspect of the present invention, it is possible to more preferably avoid the leakage of broken straw and straw debris on the rear side of the chaff sheave, and it is possible to perform better rough sorting of the processed material. Also in the second invention, it is possible to improve the sorting accuracy of the processed material in the chaff sheave.

In addition, when the first invention is combined with the second invention, the leakage of cut straw and straw debris on the rear side of the chaff sheave due to the synergistic action of the first invention and the second invention. Since it is possible to perform the rough sorting of the processed material, which is more preferably avoided, it is possible to further improve the sorting accuracy of the processed material in the chaff sheave.

According to the third aspect of the present invention, by adjusting the position of the second chaff flip plate group to the lowering position, it is possible to avoid leakage of broken straw and straw debris at the rear side of the chaff sheave and to prevent the wet kernel By drying and singulation of the pulp, it becomes possible to carry out rough sorting of a good processed product in which the retention of wet grains on the chaff sieve is suppressed. Further, around the fulcrum set at the front end of the chaff sheave, the second chaff flip plate group swings up and down between a rising position in which it is aligned with the first chaff flip plate group and a descent position where it descends downward from the first chaff flip plate group. In the lower position of the second chaff flip plate group, leakage of cut straw and straw debris on the rear side of the chaff sheave is more suitably avoided, and more favorable rough sorting of the processed material is achieved. Can be performed.

By adjusting the position of the second chaff flip plate group to the lowered position, the loosening action can be increased to suppress stagnation of wet kernels. There is a risk that cuts and rags are likely to enter from between the uppermost ends of the resulting chaflip plate, and there is a risk that the separation between the chafflip plates will deteriorate and the sorting accuracy will deteriorate. However, in such a case, by adjusting the position of the second chafflip plate group to the ascending position so as to sufficiently reduce the interval between the top ends of the chafflip plates, it is possible to prevent leakage of cut straw and straw chips. It is also possible to surely suppress it.

That is, in the third aspect of the present invention, the position of the second chafflip plate group is adjusted with respect to the first chafflip plate group in accordance with the type and situation of the grain, so that it is suitable for the type and situation of the grain. Can improve the sorting accuracy of the processed material in the chaff sieve, and can also improve the sorting efficiency of wet kernels and hard-to-threat kernels. .

In addition, when the third invention is combined with the second invention, the amount of sorting air blown toward the upper processing object is increased as compared with the case of only the third invention. Therefore, it is possible to more effectively improve the sorting accuracy of the processed material in the chaff sieve, and to improve the sorting efficiency of wet kernels, hard-hulled kernels, and the like.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the first invention is applied to a threshing apparatus A of a whole-culm-in type combine will be described below with reference to the drawings.

FIG. 1 shows a vertical side view of a threshing device A mounted on a whole-culm-in type combine. The threshing device A includes a threshing unit A1 for threshing the harvested grain culm fed by the feeder 1. And sorting of the processed product from the threshing unit A1 into the first product consisting of threshing grains, the second product consisting of unthreshing grains such as grain with branches, and the third product consisting of dust such as broken straw and straw chips. And a collection unit A3 that collects the first and second items selected by the selection unit A2.

The threshing unit A1 is composed of an axial-flow-type handling cylinder 2 having a spiral handling tooth 2A, a concave 3 as a receiving net stretched below the handling cylinder 2, and the like. ,
By driving and rotating the handling cylinder 2, handling of the harvested grain culm is performed, and long straws, broken straws, and the like are discharged from the rear to the outside of the machine. Reference numeral 4 in the figure is a chopper that finely beats a long straw or a broken straw to be discharged. In addition, the processed material obtained by handling the harvested grain culm leaks from the concave 3.

The sorting unit A2 is a grain pan 5 for receiving the processed material leaked from the front of the concave 3 and transferring the processed material backward, and a perforation for leaking many grains of the processed material transferred from the Glen pan 5 therethrough. A conveying plate 6, a chaff sheave 7 connected to the perforated conveying plate 6 to roughly sort the processed material, a rear sheave 8 connected to the chaff sheave 7 to roughly sort the processed material,
And a grain sieve 9 for finely selecting the processed material leaking from the perforated transfer plate 6 and the chaff sheave 7, and a vertical component by a driving force from an eccentric cam type driving mechanism 10. Sorting case 11 configured to be swingable along a swing trajectory having components and front and rear components, and Karamin arranged at the front lower portion of the threshing device A and supplying wind force to the swing sorting case 11 12 and the like, and performs sieving sorting by swinging of the swing sorting case 11 and wind sorting by wind power from Karamin 12 to separate grains of the processed material and dust such as broken straw and straw chips. The air is blown up and transported backward, and is discharged outside the machine.

The collecting section A3 is a first-part collecting section 13 for collecting threshing grains as the first thing leaking from the Glen Sheave 9.
And a second material recovery unit 14 that collects unthreshed kernels such as grain that has not leaked by the Glen Sheave 9 and branches that have leaked from the rear sheave 8. . Threshing grains collected in the first thing collection part 13 are conveyed by the first screw conveyor 15 and a bucket conveyor (not shown), and are stored in a Glen tank (not shown). On the other hand, the second collection part 14
The non-husked grains collected in the above are reprocessed by the second reduction device 16 having a reprocessing function, and then are returned to the sorting unit A2 by pumping.

The structure of the chaff sheave 7 provided in the swing sorting case 11 will be described in detail, as shown in FIG.
The chaff sheave 7 is constituted by a plurality of chaff flip plates 7a arranged at equal intervals in the front-rear direction.
At the upper end of each chaflip plate 7a, a support shaft a pivotally connected to the swing sorting case 11 is provided so as to protrude left and right outward. Further, a linking shaft b is protruded outward from the support shaft a at a predetermined distance downward and leftward and rightward, and each linking shaft b is connected to a pair of left and right at equal intervals in the front-rear direction. It is pivotally connected to the plate 17. An operation arm 18 is connected to one of the plurality of chaflip plates 7a via a support shaft a and a link shaft b, and the operation arm 18 is provided with threshing in the handling room 19 of the threshing unit A1. An electric motor M, which is driven and controlled by the control device H based on detection information from a contact-type sensor S that detects the flow rate of the processing object, is linked via a release wire 20 or the like. Further, a spring 21 is provided between the swing sorting case 11 and the operation arm 18 so as to urge the operation arm 18 in a direction opposite to the pulling direction by the release wire 20. In other words, the opening degree of the chaff sheave 7 can be adjusted by integrally changing the postures of the plurality of chaff flip plates 7a around the respective support shafts a by controlling and driving the electric motor M by the control device H, The opening degree of the chaff sheave 7 can be adjusted according to the amount of the processed material.

The plurality of chaflip plates 7a are arranged so that their upper end positions are at the same height and the lower end positions are lower toward the rear side.

That is, at the rear side of the chaff sheave 7, it is easy to receive the sorting wind from the Karamin 12 blowing through the lower part of the chaff flip plate 7a along the arrangement direction of the plurality of chaff flip plates 7a to the chaff sheave 7 side. By increasing the amount of sorting air blown toward the upper processing object at the rear side of the chaff sheave 7, it is possible to prevent the broken straw and the straw dust from leaking from the rear side of the chaff sheave 7.

Hereinafter, the embodiment of the second invention will be described with reference to FIGS.
It will be described based on. The components other than the chaff sheave 7 have the same configuration as that of the above-described first embodiment. Therefore, only the configuration of the chaff sheave 7 will be described below.

As shown in FIG. 3, the chaff sheave 7 in the second invention is composed of a plurality of chaff flip plates 7b arranged at equal intervals in the front-rear direction, and the upper end of each chaff flip plate 7b. Has a swing sorting case 1
A support shaft a pivotally connected to 1 is provided so as to protrude left and right outward. At the lower end of each chaflip plate 7b, a link shaft b is provided so as to protrude outward in the left-right direction, and each link shaft b is pivotally connected to the pair of left and right connecting plates 17 at equal intervals in the front-rear direction. It is connected. One of the plurality of chaflip plates 7b is provided with an operation arm 18 via a support shaft a and a link shaft b.
A contact type sensor S for detecting the flow rate of the threshing processed material in the handling room 19 of the threshing unit A1 is connected to the operation arm 18 in the same manner as in the first embodiment, although not shown. An electric motor M, which is driven and controlled by the control device H based on the detection information from the control device H, is linked via a release wire 20 or the like. Further, a spring 21 for urging the operation arm 18 in a direction opposite to the pulling direction by the release wire 20 over the swing sorting case 11 and the operation arm 18.
Is provided. That is, the opening degree of the chaff sheave 7 can be adjusted by integrally changing the postures of the plurality of chaff flip plates 7b around the respective support shafts a by the control driving of the electric motor M by the control device H, The opening degree of the chaff sheave 7 can be adjusted according to the amount of the processed material.

The plurality of chaflip plates 7b are arranged so as to be all at the same height. As shown in FIG. 4, rectangular irregularities c1 and c2 are formed at the lower end edge c of each of the chaflip plates 7b. And blows up toward the processing object above, and a part of the sorting wind blows from the concave portion c1 toward the rear-side chaflip plate 7b. Also, in the rear chaflip plate 7b, a part of the screening wind blown from the front chaflip plate 7b hits the convex part c2 of the chaflip plate 7b and blows up toward the upper processing object, and the screening is performed. A part of the wind blows from the concave portion c1 toward the rear-side chaflip plate 7b, so that the sorting wind blown up by the rear-side chaflip plate 7b is always secured. In addition, the sorting wind blowing through the concave portion c1 of the chaflip plate 7b and the chaflip plate 7 along the arrangement direction of the chaflip plate 7b
b is blown in a parallel state with the sorting wind that blows below b, and a part of the sorting wind that blows through the concave portion c1 of the chafflip plate 7b is blown upward each time it blows through the concave portion c1 of the chaflip plate 7b. The sorting wind that blows below the chaflip plate 7b is strongly drawn into the chaflip plate 7b side.

In other words, the sorting wind that blows up at the rear chaflip plate 7b is always secured, and the sorting wind that blows below the chaflip plate 7b at the rear side of the chaff sheave 7 is easily drawn into the chaflip plate 7b side. By increasing the amount of sorting air blown toward the upper processing object at the rear side of the chaff sheave 7, it is possible to prevent the broken straw and the straw dust from leaking from the rear side of the chaff sheave 7.

The third embodiment of the present invention will be described below with reference to FIGS. The components other than the chaff sheave 7 have the same configuration as that of the above-described first embodiment. Therefore, only the configuration of the chaff sheave 7 will be described below.

The chaff sheave 7 according to the third invention is shown in FIG.
As shown in FIG. 7 and FIG. 7, a first chaflip plate group 7A composed of a plurality of chaflip plates 7c fixedly connected so that their upper ends are arranged at a predetermined height, and an upper end is a first chafflip plate group Ascending position (FIG. 6)
) And a lower position (the state shown in FIG. 7) in which the upper end is lower than the upper end of the first chaff flip plate group 7 </ b> A so as to be adjustable in position by integral vertical swing. Second chaflip plate group 7 composed of chaflip plates 7d
B, the chaflip plates 7c of the first group 7A and the chaflip plates 7 of the second group 7B
d are alternately mixed at equal intervals at the ascending position of the second chaff flip plate group 7B.

At the upper end of each of the chaflip plates 7c constituting the first chaflip plate group 7A, a support shaft a is provided so as to project right and left outward, and the support shafts a are equally spaced in the front-rear direction. Is pivotally connected to the swing sorting case 11.
At the lower end of each of the chaflip plates 7c, a link shaft b is provided so as to project leftward and rightward outward, and each link shaft b is provided with a pair of right and left connecting plates at equal intervals in the front-rear direction. 17 is pivotally connected. An operation arm 18 is connected to one of the plurality of chaflip plates 7c via a support shaft a and a link shaft b, and the operation arm 18 is connected to a handle room 19 of the threshing unit A1. An electric motor M, which is driven and controlled by the control device H based on detection information from a contact-type sensor S that detects the flow rate of the threshing product, is linked via a release wire 20 or the like. Further, a spring 21 is provided between the swing sorting case 11 and the operation arm 18 so as to urge the operation arm 18 in a direction opposite to the pulling direction by the release wire 20. On the other hand, each of the chaflip plates 7 constituting the second chaflip plate group 7B
At the upper end of d, a support shaft d is provided so as to project leftward and rightward outward, and each support shaft d is pivotally connected to a pair of left and right upper connection plates 22 at equal intervals in the front-rear direction. ing.
At the lower end of each of the chaff flip plates 7d, a linking shaft e is provided so as to protrude outward in the left and right direction.
Is a pair of left and right lower connecting plates 23 at equal intervals in the front-rear direction.
It is pivotally connected to The plurality of chaflip plates 7
An operation arm 24 is connected to one of the shafts d via a support shaft d and a link shaft e.
An electric motor M, which is driven and controlled by a control device H based on detection information from a contact-type sensor S for detecting a flow rate of a threshing product in the handling room 19 of the threshing unit A1, is linked via a release wire 25 or the like. ing. Further, a spring 27 that urges the operation arm 24 in a direction opposite to the pulling direction by the release wire 25 is provided between the operation arm 24 and the support plate 26 connected to the upper connection plate 22 via the pivot shaft 22a. Is provided. That is, each of the chaff flip plates 7c, 7c,
The opening degree of the chaff sheave 7 can be adjusted by integrally changing the posture of the shaft 7d around the respective support shafts a and d, so that the opening degree of the chaff sheave 7 can be adjusted according to the amount of the processed material. ing.

As shown in FIG. 5, the upper connecting plate 22 of the second chafflip plate group 7B has a pivot shaft 22a provided at the front end thereof pivotally connected to the swing sorting case 11, and thereafter, A boss portion 22b provided at the end is provided with a knob-equipped bolt 28 inserted into the swing sorting case 11 through an elongated hole 11a formed in an arc shape centered on the pivot 22a and the swing sorting case 11. It is designed to be screwed in the state of being held.

In other words, the position of the rear end of the upper connecting plate 22 fixed to the swinging and sorting case 11 is changed along the elongated hole 11a around the pivot shaft 22a by operating the bolt 28 with the knob. FIG. 6 shows the flip plate group 7B.
The upper position shown in FIG. 7 is in a raised position (the state shown in FIG. 6) at the same height as the upper end of the first chaflip plate group 7A, and the lower position is the lower position in which the upper end is lower than the upper end of the first chaflip plate group 7A (FIG. In the situation where the grains are wet and heavy, for example, the second chaff plate group 7B is positioned at the lower position so that the plurality of chaffs can be adjusted. The sorting wind from Karino 12 which blows below the chaff flip plates 7c and 7d along the arrangement direction of the flip plates 7c and 7d can be easily received on the chaff sheave 7 side, and the entire chaff sheave 7 (particularly, the rear part of the chaff sheave 7) By increasing the amount of sorting air that blows toward the upper processing material on the side), it is possible to prevent the wet and heavy broken straw and straw chips from leaking from the chaff sheave 7. It is way.

[Other Embodiments] Hereinafter, other embodiments will be listed. The present invention may be applied to a self-contained combine or a harvester. In the first invention, as shown in FIG. 8, a plurality of chaff flip plate groups 7 </ b> C arranged in such a manner that the top ends of the chaff sheaves 7 are arranged at the same height and the lower end positions are lower toward the rear side. 9 and FIG.
As shown in the figure, the chaflip plates 7b of a fixed length and the chaflip plates 7a arranged and arranged so that the lower end position is lower toward the rear side may be mixed. In the second invention, various changes are possible as the irregularities c1 and c2 formed on the lower edge c of each of the chaflip plates 7b. For example, arc-shaped irregularities are formed on the lower edge c of each of the chaflip plates 7b. c1 and c2 may be formed. In the second invention, the front and rear chaflip plates 7b may be arranged and set so that the irregularities c1 and c2 formed on the lower edge c of the chaflip plate 7b are arranged in a line. , The front and rear chaff flip plates 7
The arrangement may be made such that the irregularities c1 and c2 of b are in a staggered state in which they are alternately located. In the third invention, the chaff sheave 7 is formed such that the chaff flip plates 7c of the first chaff flip plate group 7A and the chaff flip plates 7d of the second chaff flip plate group 7B are, for example, every two or three. You may comprise in a mixed state. In the third invention, the second chaff flip plate group 7B
May be configured to move parallel to the ascending position and the descending position. Further, the second chaff flip plate group 7B may be configured to be able to be switched between a raised position and a lowered position by operating a dedicated operation lever. In the present invention, the first invention and the second invention may be combined. That is, the chaff sheave 7 is formed by a plurality of chaff flips arranged so that the unevenness c1 and c2 are formed on the lower end edge c, the upper end positions thereof are the same height, and the lower end position is lower toward the rear side. Board 7a
May be configured. Further, the second invention and the third invention may be combined. That is, chaff sieve 7
The unevenness c1 and c2 are formed on the lower edge c,
A first chaflip plate group 7A composed of a plurality of chaflip plates 7c fixedly connected so that their upper ends are lined up at a predetermined height, and irregularities c1 and c2 are formed on a lower edge c, and the upper end is formed. An ascending position aligned with the upper end of the first chaff-flip plate group 7A and the upper end of the first chaff-flip plate group 7A
A second flip-flop group 7B composed of a plurality of flip-flops 7d integrally connected to a lowering position lower than the upper end of A in a position-adjustable manner, and the flip-flops of the first flip-flop group 7A The plate 7c and the chaflip plates 7d of the second chafflip plate group 7B may be configured to be mixed.

Incidentally, reference numerals are written in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.

[Brief description of the drawings]

FIG. 1 is a vertical side view of a threshing apparatus.

FIG. 2 is a vertical sectional side view of a swing sorting case showing a configuration of a chaff sheave in the first invention.

FIG. 3 is a vertical sectional side view of a swing sorting case showing a configuration of a chaff sheave in a second invention.

FIG. 4 is a longitudinal sectional front view of a chaff sheave showing a shape of a chaff flip plate in the second invention.

FIG. 5 is a longitudinal sectional front view of a chaff sheave showing a position adjusting structure of a second chaff flip plate group in the third invention.

FIG. 6 is a vertical sectional side view of a swing sorting case showing a configuration of a chaff sheave and a rising position of a second chaff flip plate group in the third invention.

FIG. 7 is a longitudinal sectional side view of a swing sorting case showing a configuration of a chaff sheave and a lowered position of a second chaff flip plate group in the third invention.

FIG. 8 is a longitudinal sectional side view of a swing sorting case showing a configuration of a chaff sheave in another embodiment of the first invention.

FIG. 9 is a longitudinal sectional side view of a swing sorting case showing a configuration of a chaff sheave in another embodiment of the first invention.

[Explanation of symbols]

 3 Receiving Network 7 Chaf Sheave 7a Cha Flip Board 7b Cha Flip Board 7c Cha Flip Board 7d Cha Flip Board 7A First Cha Flip Board Group 7B Second Cha Flip Board Group 7C Cha Flip Board Group 12 Karamin c Lower Edge c1 Concave c2 Convex

────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Masayoshi Araki 64, Ishizukita-cho, Sakai-shi, Osaka Kubota Sakai Works Co., Ltd. (56) References Japanese Utility Model Hei 6-3042 (JP, U) (58) Field (Int.Cl. ⁷ , DB name) A01F 12/32

Claims (3)

(57) [Claims] 1. A chaff sieve (7) for roughly sorting a treated material leaking from a receiving network (3) by receiving wind force from Karino (12) disposed in front of the treated net having a same upper end position. And a sorting unit structure of a threshing device constituted by a plurality of chaflip plates (7a) or a plurality of chafflip plate groups (7C) arranged so that the lower end position is lower toward the rear side. 2. A chaff sheave (7) for roughly sorting the treated material leaked from the receiving net (3) by receiving wind force from the Karino (12) disposed in front thereof is composed of a plurality of chaflip plates (7b).
And each chaflip plate (7b) has a front side chip.
The rear-side chaflip plate (7
b) a concave portion (c1) that allows the passage of wind to
Suppress the passage of wind to the chaflip plate (7b)
The sorting unit structure of the threshing apparatus, which has a convex part (c2) for turning . 3. A chaff sieve (7) for roughly sorting the treated material leaked from the receiving net (3) by receiving wind force from Karino (12) disposed in front thereof, each upper end having a predetermined height. Plural chaflip plates (7c) fixedly connected in a line
And a raised position where the upper end is arranged at the same height as the upper end of the first chafflip plate group (7A) and the upper end is the upper end of the first chafflip plate group (7A) A second chafflip plate group (7B) composed of a plurality of chafflip plates (7d) integrally and positionably connected to a lower position lower than the first chafflip plate group (7A). ) And the second flip-flop group (7B).
d) The sorting unit structure of the threshing device configured to coexist with the above.